10-K - AJG - Equibles

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

☒	Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2023

☐	Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from to

Commission file number 1-09761

ARTHUR J. GALLAGHER & CO.

(Exact name of registrant as specified in its charter)

Delaware	36-2151613
(State or other jurisdiction of<br><br>incorporation or organization)	(I.R.S. Employer<br><br>Identification Number)
2850 Golf Road<br><br>Rolling Meadows, Illinois	60008-4050
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code (630) 773-3800

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading<br><br>Symbol(s)	Name of each exchange on which registered
Common Stock, par value $1.00 per share	AJG	New York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b‑2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 726(b)) by the registered public accounting firm that prepared or issued its audit report Yes ☒ No ☐.

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒.

The aggregate market value of the voting common equity held by non-affiliates of the registrant, computed by reference to the last reported price at which the registrant’s common equity was sold on June 30, 2023 (the last day of the registrant’s most recently completed second quarter) was $40,930.3 million.

The number of outstanding shares of the registrant’s Common Stock, $1.00 par value, as of January 31, 2024 was 216.8 million.

Documents incorporated by reference: Portions of Arthur J. Gallagher & Co.’s definitive 2024 Proxy Statement are incorporated by reference into this Form 10‑K in response to Part III to the extent described herein.

Information Concerning Forward-Looking Statements

This report contains certain statements related to future results, or states our intentions, beliefs and expectations or predictions for the future, which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Forward‑looking statements relate to expectations or forecasts of future events. Such statements use words such as “anticipate,” “believe,” “estimate,” “expect,” “contemplate,” “forecast,” “project,” “intend,” “plan,” “potential,” and other similar terms, and future or conditional tense verbs like “could,” “may,” “might,” “see,” “should,” “will” and “would.” You can also identify forward-looking statements by the fact that they do not relate strictly to historical or current facts. For example, we may use forward-looking statements when addressing topics such as: the impact of general economic conditions, including significant inflation, interest rates and market uncertainty; the effects of geopolitical volatility, including repercussions from the wars in Ukraine and the Middle East; market and industry conditions, including competitive and pricing trends; acquisition strategy including the expected size of our acquisition program; the expected impact of acquisitions and dispositions and integrating recent acquisitions, including comments regarding the expected benefits of our acquisition of the Willis Towers Watson plc treaty reinsurance brokerage operations (which we refer to as Willis Re), BCHR Holdings, L.P., and its subsidiaries, dba Buck (which we refer to as Buck), Cadence Insurance, Inc. (which we refer to as Cadence Insurance), Eastern Insurance Group, LLC (which we refer to as Eastern Insurance), My Plan Manager Group Pty Ltd (which we refer to as My Plan Manager), and other acquisitions larger than our typical tuck-in acquisitions and the expected duration and costs of integrating such large acquisitions; the development and performance of our services and products; changes in the composition or level of our revenues or earnings; our cost structure and the size and outcome of cost-saving or restructuring initiatives; future capital expenditures; future debt levels and anticipated actions to be taken in connection with maturing debt; future debt to earnings ratios; the outcome of contingencies; dividend policy; pension obligations; cash flow and liquidity; capital structure and financial losses; future actions by regulators; the outcome of existing regulatory actions, audits, reviews or litigation; the impact of changes in accounting rules; financial markets; interest rates; foreign exchange rates; matters relating to our operations; income taxes; expectations regarding our investments; human capital management, including diversity and inclusion initiatives, and environmental, social and governance matters, including climate-resilience and climate-advising products and services and carbon emissions. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from either historical or anticipated results depending on a variety of factors.

Potential factors that could impact results include:

• Global economic and geopolitical events, such as high inflation and related monetary policy responses including increased interest rates; a recession or economic downturn; failures of financial institutions and other counterparties or a potential United States (U.S.) government shutdown or gridlock over increasing the U.S. debt ceiling; political violence, and instability, including geo-economic fragmentation;

• Economic conditions that result in financial difficulties for underwriting enterprises or lead to reduced risk-taking capital capacity, for example, as a result of large payouts related to extreme weather events, or to the failure of such enterprises, including the increased risk of errors and omissions (which we refer to as E&O) claims against us;

• Risks that could negatively affect the success of our acquisition strategy, including the impact of current economic uncertainty on our ability to source, review and price acquisitions, continuing consolidation in our industry and interest in acquiring insurance brokers on the part of private equity firms and newly public insurance brokers, which makes it more difficult to identify targets and in some cases makes them more expensive, inaccurate assumptions and failure to realize expected benefits; the risk that we may not receive timely regulatory approval of pending transactions, closing risks; execution risks, integration risks, poor cultural fit, the risk of post-acquisition deterioration leading to intangible asset impairment charges, and the risk we could incur or assume unanticipated liabilities such as cybersecurity issues or those relating to violations of anti‑corruption and sanctions laws;

• Risks related to Willis Re, Buck, Cadence Insurance, Eastern Insurance, My Plan Manager and other acquisitions larger than our usual tuck-in acquisitions, including risks related to our ability to successfully integrate operations, the possibility that our assumptions may be inaccurate resulting in unforeseen obligations or liabilities and failure to realize the expected benefits of these acquisitions;

• Damage to our reputation, including as a result of environmental, social and governance (which we refer to as ESG) matters and the potential for the Internet and social media to magnify the effects of such reputational issues;

• Failure to meet our sustainability and ESG-related aspirations, goals and initiatives or to comply with increasingly complex climate-related regulations, including increased risks related to “greenwashing”;

• Emerging risks relating to the use of artificial intelligence (which we refer to as AI) in our business operations, including regulatory, data privacy and cybersecurity risks;

• Failure to apply technology, data analytics and AI effectively in driving value for our clients through technology-based solutions, or failure to gain internal efficiencies and effective internal controls through the application of technology and related tools;

• Risks associated with the use of AI in our business operations, including regulatory, data privacy, cybersecurity, E&O and competition risks;

• Failure to attract and retain experienced and qualified talent, including our senior management team, or adequately plan and execute for the succession of such leaders; increased costs resulting from increased compensation and benefits packages as a result of a tighter labor market, and negative effects from restrictions on non-competes at the state and federal level;

• Substantial increase in remote work among our employees, which may affect our corporate culture, productivity, collaboration and effective communication, increase cybersecurity or data breaches risks, heighten vulnerability to solicitations by competing firms and impact our ability to recruit and retain employees that prefer fully remote or fully‑in‑person work environments;

• A disaster or other significant disruption to business continuity for our own operations or those of third-parties on which we rely, including cybersecurity incidents; natural disasters; political violence and unrest in the U.S. or elsewhere around the world; for example, our substantial operations in India could be negatively impacted as a result of the dispute between India and Pakistan involving the Kashmir region, rising tensions between India and China, or incidents of terrorism in India, civil unrest or other reasons;

• Sustained increases in the cost of employee benefits and compensation expense;

• Risks arising from our international operations and changes in international conditions, including the risks posed by political and economic uncertainty in certain countries (including repercussions from the wars in Ukraine and the Middle East), risks related to maintaining regulatory and legal compliance across multiple jurisdictions (such as those relating to violations of anti‑corruption, sanctions, protectionism, privacy laws and increasingly complex regulatory requirements related to climate change and sustainability issues), as well as, risks related to tariffs, trade wars, or climate change and other long-term environmental, social and governance matters and global health risks;

• Risks related to changes in U.S. or foreign tax laws, including a U.S. or foreign tax rate change, potential changes in guidance related to the U.S. Inflation Reduction Act, the Organisation for Economic Co-operation and Development’s (OECD) global minimum corporate tax regime, and other local policy changes;

• Competitive pressures, including as a result of innovation, in each of our businesses;

• Volatility or declines in premiums or other adverse trends in the insurance industry;

• The higher level of variability inherent in contingent and supplemental revenues versus standard commission revenues;

• Risks particular to our benefit consulting operations, including risks related to the acquisition of Buck;

• Risks particular to our third-party claims administrations operations, including risks related to the availability of RISX‑FACS®, our proprietary risk management information system, wage inflation, staffing shortages, any slowing of the trend toward outsourcing claims administration, and the concentration of large amounts of revenue with certain clients;

• Climate risks, including the risk of a systemic economic crisis and disruptions to our business caused by the transition to a low-carbon economy;

• Cyber-attacks or other cybersecurity incidents such as the ransomware incident we publicly disclosed in September 2020 and the heightened risk of such attacks as a result of the wars in Ukraine and the Middle East, improper disclosure of confidential, personal or proprietary data and changes to laws and regulations governing cybersecurity and data privacy;

• Unfavorable determinations related to contingencies and legal proceedings;

• Violations or alleged violations of the U.S. Foreign Corrupt Practices Act (which we refer to as FCPA), the United Kingdom (U.K.) Bribery Act 2010 or other anti-corruption laws and the Foreign Account Tax Compliance provisions of the Hiring Incentives to Restore Employment Act, and the outcome of any existing or future investigation, review, regulatory action or litigation;

• Failure to comply with regulatory requirements, including those related to governance and control requirements in particular jurisdictions, international sanctions, including new sanctions laws as a result of the wars in Ukraine and the Middle East; laws relating to the disclosure of ESG-related matters; laws relating to the use of AI, or a change in

regulations or enforcement policies that adversely affects our operations (for example, relating to insurance broker compensation methods or restrictions on non-competes);

• Changes to our financial presentation from new accounting estimates and assumptions;

• Intellectual property risks;

• Risks related to our legacy clean energy investments, including intellectual property claims, environmental and product liability claims, environmental compliance costs and the risk of disallowance by the Internal Revenue Service of previously claimed tax credits;

• The risk that our outstanding debt adversely affects our financial flexibility and restrictions and limitations in the agreements and instruments governing our debt;

• The risk of credit rating downgrades;

• The risk we may not be able to receive dividends or other distributions from subsidiaries, including the effects of significant changes in foreign exchange rates;

• The risk of share ownership dilution when we issue common stock; and

• Volatility of the price of our common stock.

Forward-looking statements are not guarantees of future performance. They involve risks, uncertainties and assumptions, including the risk factors referred to above. Our future performance and actual results or outcomes may differ materially from those expressed in forward-looking statements. Accordingly, you should not place undue reliance on forward-looking statements, which speak only as of, and are based on information available to us on, the date of the applicable document. Many of the factors that will determine these results are beyond our ability to control or predict. All subsequent written and oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. Forward-looking statements speak only as of the date that they are made, and we do not undertake any obligation to update any such statements or release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date of this report or to reflect new information, future or unexpected events or otherwise, except as required by applicable law or regulation. In addition, historical, current and forward-looking sustainability-related or ESG-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve, and assumptions that are subject to change in the future.

A detailed discussion of the factors that could cause actual results to differ materially from our published expectations is contained under the heading “Risk Factors” in our filings with the Securities and Exchange Commission (SEC), including our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, and any other reports we file with the SEC in the future.

Arthur J. Gallagher & Co.

Annual Report on Form 10-K

For the Fiscal Year Ended December 31, 2023

Index

			Page No.
Part I.
	Item 1.	Business	5-10
	Item 1A.	Risk Factors	11-30
	Item 1B.	Unresolved Staff Comments	30
	Item 1C.	Cybersecurity	30
	Item 2.	Properties	30
	Item 3.	Legal Proceedings	31
	Item 4.	Mine Safety Disclosures.	31
	Information About Our Executive Officers		31
Part II.
	Item 5.	Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	32-33
	Item 6.	[Reserved]	33
	Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	33-66
	Item 7A.	Quantitative and Qualitative Disclosure about Market Risk	66-68
	Item 8.	Financial Statements and Supplementary Data	69-129
	Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	126
	Item 9A.	Controls and Procedures	126
	Item 9B.	Other Information	126
	Item 9C.	Disclosures Regarding Foreign Jurisdictions that Prevent Inspections	126
Part III.
	Item 10.	Directors, Executive Officers and Corporate Governance	127
	Item 11.	Executive Compensation	127
	Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	127
	Item 13.	Certain Relationships and Related Transactions, and Director Independence	127
	Item 14.	Principal Accountant Fees and Services	127
Part IV.
	Item 15.	Exhibits and Financial Statement Schedules	127-129
	Item 16.	Form 10-K Summary	129
Signatures			130
Schedule II - Valuation and Qualifying Accounts			131

Item 1. Business.

Overview

Arthur J. Gallagher & Co. and its subsidiaries, collectively referred to herein as we, our, us or Gallagher, are engaged in providing insurance brokerage, reinsurance brokerage, consulting, and third-party property/casualty claims settlement and administration services to entities and individuals around the world. We believe that our major strength is our ability to deliver comprehensively structured insurance, reinsurance and risk management solutions, superior claim outcomes and comprehensive consulting services to our clients.

Our brokerage segment operations provide brokerage and consulting services to entities of all types, including commercial, nonprofit, public sector entities, insurance companies and insurance capital providers, and to a lesser extent, individuals, in the areas of insurance and reinsurance placements, risk of loss management, and management of employer sponsored benefit programs. Our risk management segment operations provide contract claim settlement, claim administration, loss control services and risk management consulting for commercial, nonprofit, captive and public sector entities, and various other organizations that choose to self-insure property/casualty coverages or choose to use a third-party claims management organization rather than the claim services provided by an underwriting enterprise.

We do not assume underwriting risk on a net basis, other than with respect to de minimis amounts necessary to provide minimum or regulatory capital to organize captives, pools, specialized underwriters or risk-retention groups. Rather, capital necessary for covering events of loss is provided by “underwriting enterprises,” which we define as insurance companies, reinsurance companies and various other risk-taking entities, including intermediaries of underwriting enterprises, that we do not own or control.

Since our founding in 1927, we have grown from a one-person insurance agency to the world’s third largest insurance broker/risk manager based on market capitalization as of December 31, 2023 and, according to Business Insurance magazine’s July/August 2023 edition, to the world’s fourth largest insurance broker based on revenues, and one of the world’s largest property/casualty third party claims administrators, according to Business Insurance magazine’s May 2023 edition.

We report our results in three segments: brokerage, risk management and corporate. The brokerage and risk management segments contributed approximately 86% and 14%, respectively, to 2023 revenues. We generate approximately 64% of our revenues from the combined brokerage and risk management segments in the U.S., with the remaining 36% generated internationally, primarily in Australia, Canada, New Zealand and the U.K. The corporate segment did not generate revenues in 2023. Our ability to generate tax credits from qualified refined coal pursuant to Internal Revenue Code Section 45 (which we refer to as IRC Section 45) ended in December 2021, and in 2022 we ran off existing chemical supplies as part of the wind down of such investments’ operations, which generated some revenues.

Shares of our common stock are traded on the New York Stock Exchange under the symbol “AJG”, and we had a market capitalization at December 31, 2023 of approximately $48.7 billion. Information in this report is as of December 31, 2023 unless otherwise noted. We were reincorporated as a Delaware corporation in 1972. Our executive offices are located at 2850 Golf Road, Rolling Meadows, Illinois 60008-4050, and our telephone number is (630) 773‑3800.

Operating Segments

We report our results in three segments: brokerage, risk management and corporate. The major sources of our operating revenues are commissions, fees and supplemental and contingent revenues from our brokerage operation, and fees, including performance‑based fees, from our risk management operations. The corporate segment generated revenues from our clean energy investments through 2022.

Our business, particularly our brokerage business, is subject to seasonal fluctuations. Commissions, fees, supplemental revenues and contingent revenues, and our costs to obtain and fulfill the service obligations to our clients, can vary from quarter to quarter as a result of the timing of contract-effective dates. On the other hand, salaries and employee benefits, rent, depreciation and amortization expenses generally tend to be more uniform throughout the year. The timing of acquisitions, recognition of books of business gains and losses and, prior to 2022, the variability in the recognition of tax credits generated by our clean energy investments also impact the trends in our quarterly operating results.

Brokerage Segment

The brokerage segment accounted for 86% of our revenues in 2023. Our brokerage segment operates through a network of more than 590 sales and service offices located throughout the U.S. and more than 300 sales and service offices in approximately 60 countries, most of which are in the Australia, Canada, New Zealand and the U.K. Most of these offices are fully staffed with sales and service personnel. We offer client service capabilities in more than 130 countries around the world through our direct operations as well as through a network of correspondent brokers and consultants.

Domestic Retail Insurance Brokerage Operations

Our retail insurance brokerage operations accounted for 73% of our brokerage segment revenues in 2023. Our retail brokerage operations place nearly all lines of commercial property/casualty and health and welfare insurance coverage. Significant lines of insurance coverage and consultant capabilities are as follows:

Aviation	Disability	General Liability	Products Liability
Casualty	Earthquake	Health & Welfare	Professional Liability
Claims Advocacy	Errors & Omissions	Healthcare Analytics	Property
Commercial Auto	Exchange Solutions	Human Resources	Retirement
Compensation	Executive Benefits	Institutional Investment	Surety Bond
Cyber Liability	Fiduciary Services	Loss Control	Voluntary Benefits
Dental	Fine Arts	Marine	Wind
Directors & Officers Liability	Fire	Medical	Workers’ Compensation

Our retail brokerage operations are organized and operate within certain key niche/practice groups, which account for approximately 78% of our retail brokerage revenues. These specialized teams target areas of business and/or industries in which we have developed a depth of expertise and a large client base. Significant niche/practice groups we serve are as follows:

Affinity	Equity Advisors	Life Sciences	Real Estate/Hospitality
Automotive	Financial Institutions	Manufacturing	Religious
Aviation	Food/Agribusiness	Marine	Restaurant
Construction	Global Risks	Nonprofit	Retail and Services
Energy	Healthcare	Personal	Technology & Communications
Entertainment	Higher/K12 Education	Private Client	Trade Credit/Political Risk
Environmental	Law Firms	Public Sector	Transportation

Our specialized focus on these niche/practice groups allows for highly-focused marketing efforts and facilitates the development of value-added products and services specific to those industries. We believe that our detailed understanding and broad client contacts within these niche/practice groups provide us with a competitive advantage.

We anticipate that our retail brokerage operations’ greatest revenue growth over the next several years will continue to come from:

• Our niche/practice groups and middle-market accounts;

• Cross-selling other brokerage products to existing clients;

• Mergers and acquisitions; and

• Developing and managing alternative market mechanisms such as captives, rent-a-captives and deductible plans/self‑insurance.

International and Other Brokerage Related Operations

We operate as a retail commercial property and casualty broker throughout 39 locations in Australia, 44 locations in Canada and 33 locations in New Zealand. In the U.K., we operate as a retail broker from approximately 88 locations. We also have specialty, wholesale, underwriting and reinsurance intermediary operations in London for clients to access Lloyd’s of London and other international underwriting enterprises, and a program operation offering customized risk management products and services to U.K. public entities. See the discussion below regarding our “Global Reinsurance Brokerage Operations.”

In Bermuda, we act principally as a wholesale broker for clients looking to access Bermuda-based underwriting enterprises and we also provide management and administrative services for captive insurance entities.

We also have strategic brokerage alliances with a variety of independent brokers in countries where we do not have a local office presence. Between our direct operations and this global network of correspondent insurance brokers and consultants, we are able to serve our clients’ coverage and service needs in approximately 130 countries around the world.

Global Reinsurance Brokerage Operations

Our reinsurance brokerage operations (which we refer to as Gallagher Re) accounted for 12% of our brokerage segment revenues in 2023. Gallagher Re operates from more than 70 offices across 31 countries, with specialist expertise, underpinned by a portfolio of analytics capabilities including catastrophe modeling, dynamic financial analysis, rating agency analysis and capital modeling. Our reinsurance brokers assist underwriting enterprises, such as insurance companies and managing general underwriters, to secure protection or reinsurance from another insurance company for a specific risk or class of risks, including negotiating rates and terms and while sourcing the best-suited contracts available on the market. Additionally, through Gallagher Securities, Gallagher Re provides capital markets services, including acting as underwriter, with respect to insurance‑linked securities, weather derivatives, capital raising and selected merger and acquisition advisory activities. We anticipate growing Gallagher Re by increasing the number of underwriting enterprise clients, deepening our relationships with current underwriting enterprise clients, developing new products, further building out our facultative capabilities, and through mergers and acquisitions.

Wholesale Insurance Brokerage Operations

Our wholesale insurance brokerage operations accounted for 15% of our brokerage segment revenues in 2023. Our wholesale brokers assist our retail brokers and other non-affiliated brokers in the placement of specialized and hard-to-place insurance. These brokers operate through approximately 147 offices primarily located across the U.S., Bermuda and through our approved Lloyd’s of London brokerage operation. More than 84% of our wholesale brokerage revenues comes from non-affiliated brokerage clients.

In certain cases we act as a brokerage wholesaler, and in other cases we act as a managing general agent or managing general underwriter, distributing specialized insurance coverages for underwriting enterprises. Managing general agents and managing general underwriters are agents authorized by an underwriting enterprise to manage all or a part of its business in a specific geographic territory. Activities they perform on behalf of the underwriting enterprise may include marketing, underwriting (although we do not assume any underwriting risk), issuing policies, collecting premiums, appointing and supervising other agents, paying claims and negotiating reinsurance.

We believe our growth prospects for our wholesale brokerage operations depend on increasing the number of broker-clients, developing new managing general agency and underwriter programs, and through mergers and acquisitions.

Captive Underwriting Enterprises

We also have a wholly owned underwriting enterprise subsidiary based in the U.S. that cedes all of its insurance risk of loss to reinsurers or captives under facultative and quota-share treaty reinsurance agreements. See Note 18 to our 2023 consolidated financial statements for additional financial information related to the insurance activity of our wholly owned underwriting enterprise subsidiary for 2023, 2022 and 2021.

Risk Management Segment

Our risk management segment accounted for 14% of our revenues in 2023. Approximately 62% of our risk management segment’s revenues are from workers’ compensation-related claims, 31% are from general and commercial auto liability-related claims and 7% are from property-related claims in 2023.

Risk management services are primarily marketed on an independent basis from our brokerage operations, to Fortune 1000 companies, larger middle-market companies, nonprofit organizations, public sector entities, and underwriting enterprises, such as insurance carriers and captives. We manage our third party claims adjusting operations through a network of more than 40 offices located throughout Australia, Canada, New Zealand, the U.K. and the U.S. Most of these offices are fully staffed with claims adjusters and other service personnel. Our adjusters and service personnel act solely on behalf and under the instruction of our clients.

While this segment complements our brokerage offerings, approximately 93% of our risk management segment’s revenues come from clients not affiliated with our brokerage operations, such as underwriting enterprises and clients of other insurance brokers.

We expect that the risk management segment’s most significant growth prospects through the next several years will come from:

• Program business and the outsourcing of portions of underwriting enterprise claims departments;

• Increased levels of business with Fortune 1000 companies;

• Larger middle-market companies and captives; and

• Mergers and acquisitions.

Corporate Segment

We wound down our clean investment energy investments’ operations in 2022 and the corporate segment did not generate revenues in 2023.

The corporate segment reports the financial information related to our debt, clean energy investments, external acquisition-related expenses, other corporate costs and the impact of foreign currency remeasurement. As a result, the timing of acquisitions and prior to 2022, the variability in the recognition of tax credits generated by our clean energy investments, impact the trends in our quarterly operating results.

We have investments in limited liability companies that own or owned 35 commercial clean coal production facilities that are qualified to produce refined coal using Chem-Mod LLC’s proprietary technologies. These operations produced refined coal that we believe qualifies for tax credits under IRC Section 45. The law that provides for IRC Section 45 tax credits expired as of December 31, 2019 for 14 of our plants and expired on December 31, 2021 for the other 21 plants. Chem-Mod LLC (described below) is a privately held enterprise that has commercialized multi-pollutant reduction technologies to reduce mercury, sulfur dioxide and other emissions at coal-fired power plants. We own 46.5% of Chem-Mod LLC and are its controlling managing member. We also have a 12.0% noncontrolling interest in two dormant, privately-held, enterprises, C-Quest Technology LLC and C-Quest Technologies International LLC (which we refer to together as, C-Quest), which own technologies that reduce carbon dioxide emissions created by burning fossil fuels. At this time, it is unclear if C‑Quest will ever become commercially viable.

Competition

Brokerage Segment

The insurance and reinsurance brokerage and consulting businesses are highly competitive and there are many organizations and individuals throughout the world who actively compete with us in every area of our business. Additionally, we also face competition from insurance and reinsurance carriers that market, distribute and service a portion of their products directly, and in some cases from banks, consulting and accounting firms, and technology companies that can provide alternative risk management products or services.

We believe that the primary factors determining our competitive advantage are the quality of the services we render, the personalized attention we provide, the individual and corporate expertise providing the actual service to the client, the data analytics and technology capabilities we have built and the overall cost efficiencies we create for our clients. We provide sophisticated data analysis and other data and benchmarking insights through a product offering we refer to as Gallagher Drive to help our clients make insurance decisions. Through our SmartMarket platform, we also provide insurance carriers with individualized preference setting and risk identification capabilities, as well as performance data and metrics. We believe these capabilities provide a growing competitive advantage with respect to many of the smaller organizations with which we compete.

Risk Management Segment

Our risk management business competes with a number of companies varying in size and scope, including global independent third party claims administrators, regional third party claims administrators, insurance owned claims administrators and legal firms in certain jurisdictions. We believe that the primary factors determining our competitive position are our ability to deliver better outcomes, reputation for outstanding service, cost-efficient service and financial strength.

Business Combinations

We completed over 700 acquisitions from January 1, 2002 through December 31, 2023. The majority of these acquisitions have been smaller regional or local brokerages, agencies, or employee benefit consulting operations with a middle or small client focus and/or significant expertise in one of our niche/practice groups. The total purchase price for individual acquisitions has typically ranged from $1.0 million to $100.0 million. During 2023, we also completed several acquisitions that were larger than our usual tuck-in acquisitions, namely the acquisitions of Buck, Cadence Insurance and Eastern Insurance, within our brokerage segment, and the acquisition of My Plan Manager, within our risk management segment.

Through these acquisitions, we seek to expand our talent pool, enhance our geographic presence and service capabilities, or further diversify our business mix. We also focus on identifying:

• A corporate culture that matches our sales-oriented and ethics-based culture;

• A profitable, growing business whose ability to compete would be enhanced by gaining access to our greater resources; and

• Clearly defined financial criteria.

See Note 3 to our 2023 consolidated financial statements for a summary of our 2023 acquisitions, the amount and form of the consideration paid and the dates of acquisitions.

Clients

Our client base is highly diversified and includes commercial, industrial, public sector, religious and nonprofit entities, as well as underwriting enterprises in our reinsurance operations and risk management segment. In 2023, our largest single client represented approximately 1% and our ten largest clients together represented approximately 3% of our combined brokerage and risk management segment revenues.

Human Capital

As of December 31, 2023, we had approximately 52,000 employees, with approximately 45% in the U.S. and 55% outside of the U.S. Approximately 62% of our employees work in our brokerage segment and 15% in our risk management segment. Our remaining employees work in our corporate segment, primarily at our headquarters and at Gallagher Centers of Excellence in India. In 2023, our total compensation expense was $4,769.1 million for the brokerage segment and $776.8 million for the risk management segment, representing 55% and 60%, respectively, of brokerage and risk management segment revenues. Additional information regarding compensation expense, both on a reported and an adjusted basis can be found elsewhere in this report under Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Hiring and Retention

While many of our new employees come to us through mergers and acquisitions and traditional hiring, “growing our own” has long been a key part of our human capital strategy. Our summer internship program began more than fifty years ago with a single intern. Since then, our program has grown globally and, during the summer of 2023, we employed approximately 500 interns. We provide our interns with professional development and on-the‑job sales training that gives them the opportunity to cultivate expertise and accelerate their full-time sales career growth.

We invest in our employees and aim to offer competitive compensation and benefits packages. We acknowledge the changing work landscape and promote hybrid work arrangements, aiming to provide our employees with flexibility and work-life balance. Further, we conduct periodic global engagement surveys that have had increasingly strong participation and positive results.

Employee Learning and Development

We have programs around the world that offer learning and development opportunities to our employees. For example, the Achieve Gallagher Career Associate Programs are North American career development programs, that combine formal training, with experiential learning to provide participants the knowledge needed to be successful as client service and sales professionals, respectively. Similarly, we offer development programs outside the U.S., including Australia, India, and the U.K. We provide on‑demand access to over 35,000 globally accessible business skills learning assets across 18 languages.

Inclusion and Diversity

We aim to foster an environment that values and leverages the diverse talents, perspectives and ideas of all employees so they can reach their fullest potential. As of December 31, 2023, approximately 58% of our employees were women, including 47% of managers and 41% of producers. In the U.S., approximately 27% of our employees were racially/ethnically diverse, including 17% of managers and 21% of producers.

Regulation

Many of our activities throughout the world are subject to supervision and regulations promulgated by regulatory or self-regulatory bodies such as the SEC, the NYSE, the U.S. Department of Justice (DOJ), the IRS, the Office of Foreign Assets Control, the Federal Trade Commission (FTC) the Financial Industry Regulatory Authority (FINRA) and the Financial Crimes Enforcement Network in the U.S., the Financial Conduct Authority in the U.K., the Australian Securities and Investments Commission in Australia and insurance regulators in nearly every jurisdiction in which we operate. Our retirement-related consulting and investment services are subject to pension law and financial regulation in many countries. Our activities are also subject to a variety of other laws, rules and regulations addressing, among others, licensing, data privacy, wage-and-hour standards, employment and labor relations, anti-trust, anti-corruption, currency exchange, cash reserves and local investment. As we continue to implement new technology and AI initiatives across our business we also expect to be subject to additional regulations related to the use of such new technologies.

The global nature of our operations increases the complexity and cost of compliance with laws and regulations, including increased staffing needs, the development of new policies, procedures and internal controls and providing training to employees in multiple locations, adding to our cost of doing business. Many of these laws and regulations may have differing or conflicting legal standards across jurisdictions, increasing further the complexity and cost of compliance. In emerging markets and other jurisdictions with less developed legal systems, local laws and regulations may not be established with sufficiently clear and reliable guidance to provide us with adequate assurance that we are aware of all necessary licenses to operate our business, that we are operating our business in a compliant manner, or that our rights are otherwise protected. In addition, major political and legal developments in jurisdictions in which we do business may lead to new regulatory costs and challenges. For example, China adopted a “blocking” statute similar to that of the European Union (EU) requiring compliance with certain Chinese laws if they conflict with U.S. laws. Rising global tensions and protectionism may also lead other countries to adopt similar measures, which could make it more difficult and costly for us to expand our operations globally.

In addition, as regulators and investors continue to focus on climate change and other sustainability issues, we are subject to new and increasingly complex disclosure frameworks and regulations. For example, the Corporate Sustainability Reporting Directive (CSRD) became effective in 2022 and we expect that some of our EU subsidiaries will be required to start reporting under the CSRD in 2025. The SEC has also proposed new climate change disclosure requirements, and compliance with such rules, when enacted, will require significant effort which may not be complementary with our CSRD compliance efforts given both regulations differ substantially. Further, in 2023 the State of California enacted sweeping climate change disclosure requirements, which may also conflict with the CSRD and the SEC requirements. We are also subject to several sustainability-related reporting requirements in Canada and the U.K. and expect that similar requirements will be enacted in Australia and other jurisdictions in which we operate. Our compliance with these frameworks and regulations have required, and will continue to require, significant resources.

Regulations promulgated by the U.S. Treasury Department pursuant to FATCA require us to take various measures relating to non‑U.S. funds, transactions and accounts.

Available Information

Our executive offices are located at 2850 Golf Road, Rolling Meadows, Illinois 60008-4050, and our telephone number is (630) 773‑3800. Our annual reports on Form 10-K, quarterly reports on Form 10‑Q, current reports on Form 8‑K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, are available free of charge on our website at http://investor.ajg.com/sec-filings as soon as reasonably practicable after electronically filing or furnishing such material to the SEC. The SEC also maintains a website (www.sec.gov) that includes our reports, proxy statements and other information. Unless expressly noted, the information on our website, including our investor relations website, or any other website is not incorporated by reference in this Form 10-K and should not be considered part of this Form 10-K or any other filing we make with the SEC.

Item 1A. Risk Factors.

Risk Factor Summary

• Global economic and geopolitical events, such as inflation, monetary policy responses and changing interest rates; a recession or economic downturn, political violence, and instability, including geo-economic fragmentation, could adversely affect our results of operations and financial condition.

• Economic conditions that result in financial difficulties for underwriting enterprises or lead to reduced risk-taking capital capacity could adversely affect our results of operations and financial condition.

• We have historically acquired large numbers of insurance brokers, benefit consulting firms and, to a lesser extent, third party claims administration and risk management firms. We may not be able to continue such an acquisition strategy in the future and there are risks associated with such acquisitions, which could adversely affect our growth and results of operations.

• We face additional risks relating to acquisitions that are larger than our usual tuck-in acquisitions, including that these acquisitions will not perform as expected and that we cannot successfully integrate complex operations.

• Damage to our reputation could have a material adverse effect on our business.

• Our sustainability and ESG-related aspirations, goals and initiatives, and our public statements and disclosures regarding them, expose us to numerous risks.

• If we are unable to apply technology and data analytics effectively in driving value for our clients through technology-based solutions or gain internal efficiencies and effective internal controls through the application of technology and related tools, our operating results, client relationships, growth and compliance programs could be adversely affected.

• We are subject to risks associated with AI.

• Our success depends, in part, on our ability to attract and retain qualified talent, including our senior management team.

• The substantial increase in remote work among our employees subjects us to certain challenges and risks.

• Business disruptions could have a material adverse effect on our operations, damage our reputation and impact client relationships.

• Sustained increases in compensation expense and the cost of employee benefits could reduce our profitability.

• Our substantial operations outside the U.S. expose us to risks different than those we face in the U.S.

• Changes in tax laws could adversely affect us.

• We face significant competitive pressures in each of our businesses.

• Volatility or declines in premiums or other adverse trends in the insurance industry may seriously undermine our profitability.

• Contingent and supplemental revenues we receive from underwriting enterprises are less predictable than standard commission revenues, and any decrease in the amount of these forms of revenue could adversely affect our results of operations.

• We face a variety of risks in our benefit consulting operations distinct from those we face in our insurance brokerage operations.

• We face a variety of risks in our third-party claims administration operations that are distinct from those we face in our brokerage and benefit consulting operations.

• Climate risks, including the risk of an economic crisis, risks associated with the physical effects of climate change and disruptions caused by the transition to a low-carbon economy, could adversely affect our business, results of

operations and financial condition.

Regulatory, Legal and Accounting Risks

• Improper disclosure of confidential, personal or proprietary information and cybersecurity attacks or other security breach of our information systems, or those of third-party vendors we rely on, could result in regulatory scrutiny, legal liability or reputational harm, and could adversely affect our business, financial condition and reputation.

• We are subject to a number of contingencies and legal proceedings which, if determined unfavorably to us, would adversely affect our financial results.

• Changes in data privacy and protection laws and regulations, or any failure to comply with such laws and regulations, could adversely affect our business and financial results.

• We could be adversely affected by violations or alleged violations of laws that impose requirements for the conduct of our overseas operations, including the FCPA, the U.K. Bribery Act or other anti-corruption laws, sanctions laws, and FATCA.

• We are subject to regulation worldwide. If we fail to comply with regulatory requirements or if regulations change in a way that adversely affects our operations, we may not be able to conduct our business, or we may be less profitable.

• We are subject to a number of contingencies and legal proceedings which, if determined unfavorably to us, would adversely affect our financial results.

• Changes in our accounting estimates and assumptions could negatively affect our financial position and operating results.

• Limited protection of our intellectual property could harm our business and our ability to compete effectively, and we face the risk that our services or products may infringe upon the intellectual property rights of others.

Risks Relating to our Investments, Debt and Common Stock

• Our clean energy investments are subject to various risks and uncertainties.

• The IRC Section 45 operations in which we have invested and the by-products from such operations may result in environmental and product liability claims and environmental compliance costs.

• We have debt outstanding that could adversely affect our financial flexibility and subjects us to restrictions and limitations that could significantly impact our ability to operate our business. Credit rating downgrades would increase our financing costs and could subject us to operational risk.

• We are a holding company and, therefore, may not be able to receive dividends or other distributions in needed amounts from our subsidiaries.

• Future sales or other dilution of our equity could adversely affect the market price of our common stock.

Risks Relating to our Business Generally

Global economic conditions and geopolitical events may cause unstable economic conditions in the countries, regions or industries in which we operate and adversely affect our results of operations and financial condition.

Global economic events, including accommodative monetary and fiscal policies, have contributed to significant inflation in many markets in which we operate. To combat inflation and restore price stability, the U.S. Federal Reserve and other central banks raised interest rates in 2023. While moderate inflation generally benefits our industry by increasing insurable asset values, increased inflation and higher interest rates have had far-reaching negative effects on the global economy during the past several years. Geopolitical conflicts such as the wars in Ukraine and the Middle East, geo-economic fragmentation, climate change, the transition to a low-carbon economy, political crises like potential U.S. governmental shutdowns or gridlock over increasing the U.S. debt ceiling, and political violence and instability worldwide could also weigh negatively on the economy.

A recession or decline in economic activity, for these and any other reasons, could adversely impact us in future periods. This could happen, for example, if our clients reduce the amount of insurance coverage, reinsurance coverage, consulting services or

claims administration services they purchase due to reductions in headcount, payroll, or replacement and asset values, among other factors. Whether these reductions are caused by an overall economic downturn or declines in certain countries, regions and industries in which we operate, our commission and fee revenues, consulting revenues, or revenues from managing third-party insurance claims could be adversely impacted. Some of our clients may also experience liquidity problems or other financial difficulties due to tightening credit markets or lower levels of economic activity. If our clients file for bankruptcy, liquidate their operations, consolidate or are generally unable to meet their obligations, our revenues, ability to collect receivables and liquidity could be adversely impacted, which could have an adverse effect on our results of operations and financial condition.

Uncertain economic conditions have created volatility in the U.S. and other markets where we operate. A rise in the cost of labor, cost of capital, or interest and tax rates, among other things, could negatively impact our operating and general and administrative expenses. We have no or limited control over such developments. If our costs grow significantly, our margins and results of operations may be materially and adversely impacted and we may not be able to achieve our strategic and financial objectives. Further, a tightening of credit or capital markets could negatively impact our business, financial condition and liquidity, including our ability to continue to access preferred sources of liquidity when needed and under similar terms, which may increase our capital costs. We could also experience losses on holdings of cash and investments due to failures of financial institutions and other counterparties. Thus, a deterioration in macroeconomic conditions could adversely affect our business, results of operations or financial condition.

Lower interest rates in the future could reduce investment earnings on our cash, revenue from our premium financing operations and short-term investments of fiduciary and operating funds. In addition, lower levels of inflation in the future may reduce our revenue growth by slowing the increase in insurable asset values.

Economic conditions that result in financial difficulties for underwriting enterprises or lead to reduced risk-taking capital capacity could adversely affect our results of operations and financial condition.

We have a significant amount of receivables from certain of the underwriting enterprises with which we place insurance and reinsurance. If those companies experience liquidity problems or other financial difficulties, we could encounter delays or defaults in payments owed to us, which could have a significant adverse impact on our consolidated financial condition and results of operations. The failure of an underwriting enterprise with which we place business could result in E&O claims against us by our clients. Further, the failure of E&O underwriting enterprises could make the E&O insurance we rely upon cost prohibitive or unavailable. Underwriting enterprises are also clients of Gallagher Re and, as such, any of the negative developments for underwriting enterprises referred to above could also reduce our commission revenues from such clients. Any of these developments could adversely affect our results of operations and financial condition. In addition, if underwriting enterprises merge, fail, or withdraw from offering certain lines of coverage, for example, because of large payouts related to climate or weather events or other emerging risk areas, overall risk-taking capital capacity could be negatively affected, which could reduce our ability to place certain lines of coverage, reduce demand from the insurance company clients of Gallagher Re and, as a result, reduce our revenues and profitability.

We have historically acquired large numbers of insurance brokers, benefit consulting firms and, to a lesser extent, third party claims administration and risk management firms. We may not be able to continue such acquisition strategy in the future and there are risks associated with such acquisitions, which could adversely affect our growth and results of operations.

Our ordinary-course acquisition program has been an important part of our historical growth, particularly in our brokerage segment, and we believe that similar acquisition activity will be important to maintaining comparable growth in the future. Failure to successfully identify and complete acquisitions would likely result in slower growth. Continuing consolidation in our industry and a high level of interest in acquiring insurance brokers on the part of private equity firms, private equity-backed consolidators and newly public insurance brokers has, in some cases, made, and could in the future make, appropriate acquisition targets more difficult to identify and more expensive. Even if we are able to identify appropriate acquisition targets, we may not have sufficient capital to fund acquisitions, be able to execute transactions on favorable terms or integrate targets in a manner that allows us to realize the benefits we have historically experienced from acquisitions. When regulatory approval of acquisitions is required, our ability to complete acquisitions may be limited by an ongoing regulatory review or other issues with the relevant regulator. Our ability to finance and integrate acquisitions may also decrease if we complete a greater number of larger acquisitions than we have historically. See the risk factor below regarding larger acquisitions. See also Note 3 to our 2023 consolidated financial statements for information regarding the size of transactions in the reporting period.

Post-acquisition risks include poor cultural fit and risks relating to retention of personnel, retention of clients, entry into unfamiliar or complex markets or lines of business, contingencies or liabilities, such as violations of sanctions laws or anti-corruption laws including the FCPA and U.K. Bribery Act, risks relating to ensuring compliance with licensing and regulatory requirements, tax and accounting issues, the risk that an acquisition distracts management and personnel from our existing business, and integration difficulties relating to accounting, information technology (which we refer to as IT), pay equity, or

human resources, some or all of which could have an adverse effect on our results of operations and growth. The failure of acquisition targets to achieve anticipated revenue and earnings levels could also result in goodwill impairment charges.

We face additional risks relating to acquisitions that are larger than our usual tuck-in acquisitions described above.

We can provide no assurance that we will be able to successfully integrate the operations of acquisitions that are larger than our usual tuck-in acquisitions, such as Willis Re, Buck, Eastern Insurance, Cadence Insurance and My Plan Manager, that they will perform as expected, or that we will not incur unforeseen obligations or liabilities. Integration efforts relating to larger acquisitions are more complex, including with respect to technology systems, which may divert management’s attention and resources and could adversely affect our operating results. In addition, we have made certain assumptions relating to these acquisitions that may be inaccurate, including as a result of the failure to realize expected benefits, higher than expected integration costs and unknown liabilities as well as general economic and business conditions. These assumptions relate to various matters, including projections of future revenues, non-GAAP measures, expenses and expense allocation; our ability to maintain, develop and deepen relationships with employees, including key brokers, and clients; the amount of goodwill and intangibles; and other unforeseen compliance, financial and strategic risks.

Damage to our reputation could have a material adverse effect on our business.

Our reputation is one of our key assets. We advise our clients on and provide services related to a wide range of subjects and our ability to attract and retain clients is highly dependent upon the external perceptions of our expertise, level of service, ability to protect client information, trustworthiness, business practices, financial condition and other subjective qualities such as ethics, culture and values. Our success is also dependent on maintaining a good reputation with existing and potential employees, investors, regulators and the communities in which we operate. Negative perceptions or publicity regarding these matters, including our association with clients or business partners with damaged reputations, or from actual or alleged conduct by us or our employees, including corruption or bribery allegations (for example, those in connection with the previously-disclosed investigation of our business in Ecuador) or cybersecurity incidents (for example, as disclosed in previous filings, we experienced a ransomware attack in 2020) could damage our reputation. Negative publicity resulting from one of our marketing partnerships (for example, with a sports team or league) could damage our brand and/or our reputation. Our reputation could also be harmed by negative perceptions or publicity regarding sustainability or ESG matters, including concerns with environmental, climate change, workforce diversity, political spending, pay equity, harassment, racial justice, cybersecurity and data privacy matters, as well as backlash against sustainability or ESG initiatives generally. Negative publicity may be posted on social media or other Internet forums, whether or not true, and the speed and pervasiveness with which information can be disseminated through these channels, in particular social media, may magnify the risks noted above. Any resulting erosion of trust and confidence could make it difficult for us to attract and retain clients, employees or investors; result in lower ESG ratings, exclusion of our stock from ESG-oriented indices, and reduced demand for our stock from ESG-focused investment funds; increase our cost of borrowing; or harm our relationships with regulators and the communities in which we operate. Any of these matters could have a material adverse effect on our business, financial condition and results of operations. As we venture into new jurisdictions and markets globally, negative reputational events (whether arising from regulatory matters or otherwise) may have a disproportionate impact in locations or markets where our employee and client presence is limited. Any negative publicity could potentially hinder our growth prospects in such locations or markets. See below for additional risk factors regarding climate change and ESG initiatives and disclosures.

Our ESG-related aspirations, goals and initiatives, and our statements and disclosures regarding ESG-related matters, expose us to numerous risks.

The increased focus on ESG issues has made compliance with regulations, frameworks and stakeholder expectations increasingly complex. Our business faces increased scrutiny from the investment community, clients, employees, potential acquisition targets, regulators and other stakeholders related to our ESG activities. This includes scrutiny regarding our goal to reach Net Zero carbon emissions in our direct operations (Scope 1 and Scope 2) by 2050 and our interim goal of 50% reduction in our Scope 1 and Scope 2 carbon emissions, on a per employee basis, by 2030. We anticipate the same level of scrutiny with respect to any other goals, targets and objectives we may announce in the future, and our methodologies and timelines for pursuing them. Heightened scrutiny has increased the risk that we could be perceived as, or accused of, making inaccurate or misleading statements, commonly referred to as “greenwashing.” If our ESG practices and disclosures do not comply with regulations or align with stakeholder expectations and standards, which are continuously evolving, our reputation, our ability to attract or retain employees and our attractiveness as an investment, business partner or as an acquirer could be negatively impacted. Similarly, our failure or perceived failure to pursue or fulfill our goals, targets and objectives, to comply with ethical, environmental or other standards, regulations or expectations or to satisfy various reporting standards with respect to these matters, could have the same negative impacts, as well as expose us to government enforcement actions and private litigation. See also “We are subject

to regulation worldwide. If we fail to comply with regulatory requirements or if regulations change in a way that adversely affects our operations, we may not be able to conduct our business, or we may be less profitable.”

If we are unable to apply technology and data analytics effectively in driving value for our clients through technology-based solutions or gain internal efficiencies and effective internal controls through the application of technology and related tools, our operating results, client relationships, growth and compliance programs could be adversely affected.

Our future success depends, in part, on our ability to anticipate and respond effectively to the risks and opportunities presented by digital disruption, “big data” and data analytics, AI and other developments in technology. These may include new applications or insurance-related services based on AI (e.g., generative AI, machine learning), robotics, blockchain, the metaverse or new approaches to data mining that impact the nature of how we generate revenue. We may be exposed to competitive risks related to the adoption and application of new technologies by established market participants (for example, through disintermediation or use of the metaverse) or new entrants such as technology companies, “Insurtech” start-up companies, and others. These new entrants are focused on using technology and innovation in an attempt to simplify and improve the client experience, increase efficiencies, alter business models and effect other potentially disruptive changes in the industries in which we operate. We must also develop and implement technology solutions and technical expertise among our employees that anticipate and keep pace with rapid and continuing changes in technology, industry standards, client preferences and internal control standards. We may not be successful in anticipating or responding to these developments on a timely and cost-effective basis and our ideas may not be accepted in the marketplace. Additionally, the effort to gain technological expertise, make use of data analytics, and develop new technologies in our business requires us to incur significant expenses. Investments in technology systems and data analytics capabilities may not deliver the benefits or perform as expected, or may be replaced or become obsolete more quickly than expected, which could result in operational difficulties or additional costs. If we cannot offer new technologies or data analytics solutions as quickly as our competitors, or if our competitors develop more cost-effective technologies, data analytics solutions or other product offerings, we could experience a material adverse effect on our operating results, client relationships, growth, and compliance programs.

In some cases, we depend on key third-party vendors and partners to provide technology and other support for our strategic initiatives. If these third parties fail to perform their obligations or cease to work with us, our ability to execute on our strategic initiatives could be adversely affected. See also “We are subject to risks associated with AI.”

We are subject to risks associated with AI.

We use AI in our business, including with respect to services provided to our clients. We have internal policies governing the use of AI by our employees designed to protect the company from breaches of data privacy, E&O liability and regulatory enforcement risk; however, our employees could violate these policies and expose us to such risks. Furthermore, our exposure to these risks may increase if our vendors, suppliers, or other third-party providers employ AI in relation to the products or services they provide to us, as we have limited control over such use in third-party products or services. These risks include, among others, the input of confidential information, including material non-public information, in contravention of our policies or contractual restrictions to which any of the foregoing are subject, or in violation of applicable laws or regulations, including those relating to data protection. This could result in such information becoming part of a dataset that is accessible by other third-party AI applications and users.

Additionally, AI heavily relies on the collection and analysis of extensive data sets. Due to the impracticality of incorporating all relevant data into the models used by AI, it is inevitable that data sets within these models will contain inaccuracies and errors, and potential biases. This could potentially render such models inadequate or flawed, negatively impacting the effectiveness of the technology. We are exposed to the risks associated with these inaccuracies, errors and biases, along with the adverse impacts that such flawed models could have on our business and operations. Furthermore, governance and ethical issues relating to the use of AI may also result in reputational harm and liability.

AI and its applications are developing rapidly. The use of this technology by our competitors may give them a competitive advantage that cannot be predicted at this time, and it may negatively affect our assumptions regarding the competitive landscape of our business. Consequently, it is difficult to predict all risks associated with this new technology, which may eventually impact our business, results of operations, or financial condition. See also “Changes in data privacy and protection laws and regulations, or any failure to comply with such laws and regulations, could adversely affect our business and financial results.”

Our success depends, in part, on our ability to attract and retain qualified talent, including our senior management team.

We depend upon members of our senior management team, who possess extensive knowledge and a deep understanding of our business and strategy. We could be adversely affected if we fail to successfully execute our succession plans for these leaders, including our chief executive officer, and if our succession plans are not well-received by our employees and trading partners. We could also be adversely affected if we fail to attract and retain talent and foster a diverse and inclusive workplace throughout our organization. Competition for talent is intense in many areas of our business, particularly in our claims management business, IT and in rapidly developing fields such as AI and data engineering. Furthermore, the increased availability of remote

working arrangements has expanded the pool of companies that compete with us for talent. As competition for skilled professionals remains intense, employers are implementing new offerings to attract talent, including but not limited to increasing compensation, enhancing health and wellness solutions, and providing in-office and remote work options. We may have to devote significant resources to attract and retain talent, which could negatively affect our business, operating results and financial condition.

In addition, our industry has experienced competition for leading brokers and in the past we have lost key brokers and groups of brokers, along with their clients, business relationships and intellectual property directly to our competition. We enter into agreements with many of our brokers and significant client-facing employees and all of our executive officers, which prohibit them from disclosing confidential information and/or soliciting our clients, prospects and employees upon their termination of employment. The confidentiality and non-solicitation provisions of such agreements terminate in the event of a hostile change in control, as defined in the agreements. Although we pursue legal actions for alleged breaches of non-compete or other restrictive covenants, theft of trade secrets, breaches of fiduciary duties, intellectual property infringement and related causes of action, such legal actions may not be effective in preventing such breaches, theft or infringement. In certain cases, our competitors have solicited employees in violation of their employment agreements as a matter of standard business practice, apparently determining that the cost of defending litigation is outweighed by the benefits of acquiring our employees in this manner. In addition, the Federal Trade Commission (FTC) has proposed a rule that would prevent employers from entering into non-competes with employees and require employers to rescind existing non-competes. Furthermore, certain states like Minnesota, North Dakota and Oklahoma have implemented comparable or more stringent regulations, while California has broadened the scope of its longstanding restrictions on non-competes. If this rule goes into effect, more states adopt similar rules or if we fail to adequately address any of the issues referred to above, we could experience a material adverse effect on our business, operating results and financial condition. See also “The substantial increase in remote work among our employees subjects us to certain challenges and risks” below.

The substantial increase in remote work among our employees subjects us to certain challenges and risks.

Many of our employees now work from home on a full- or part-time basis. Remote work for some of our employees could affect their productivity, including due to a lower level of oversight, distractions and disruptions due to caregiving obligations or slower or unreliable Internet access. Remote work may also make some employees feel detached from colleagues and the organization. In some cases, this may make them more vulnerable to solicitations by competing firms. In addition, our increased reliance on work-from-home technologies and our employees’ more frequent use of personal devices and non-standard business processing may increase the risk of cybersecurity or data breaches from circumvention of security systems, denial-of-service attacks or other cyber-attacks, hacking, “phishing” attacks, computer viruses, ransomware, malware, employee or insider error, malfeasance, social engineering, physical breaches or other actions.

The increased prevalence of remote work among our employees may also subject us to other challenges and risks. For example, our hybrid work environment may adversely affect our ability to recruit and retain personnel who prefer a fully remote or fully in-person work environment. Operating our business with both remote and in-person workers, or workers who work on flexible schedules, could have a negative impact on our corporate culture, decrease the ability of our employees to collaborate and communicate effectively, decrease the ability of newer production and support staff to learn client-handling and other key skills informally around the office, decrease innovation and productivity, or negatively affect employee morale.

Business disruptions could have a material adverse effect on our operations, damage our reputation and impact client relationships.

Our ability to conduct business may be adversely affected by a disruption in the infrastructure that supports our business. This includes infrastructure controlled by third-party vendors and suppliers. Such disruptions could be caused by various factors, such as cybersecurity incidents (for example, as disclosed in previous filings, we experienced a ransomware attack in 2020), security breaches, human error, capacity constraints, hardware failures or defects, natural disasters, climate and weather events, pandemics, fires, power outages, telecommunication failures, break-ins, sabotage, intentional acts of vandalism, acts of terrorism, civil disruption, political violence and unrest, or war. While we have disaster recovery procedures in place, they may not be effective. Additionally, insurance may not continue to be available at reasonable prices and may not address all potential losses or compensate us for the possible loss of clients or increase in claims and lawsuits directed against us. Further, because we do not control infrastructure owned by third parties, we cannot guarantee that such parties have effective recovery procedures, or sufficient funds or insurance to recover any damages, losses or other liabilities that we may incur due to business interruptions caused by disruptions to their infrastructure.

The risk of business disruption is more pronounced in certain geographic areas where a significant portion of our business is concentrated. For example, we have substantial operations in India that provide important client support and other back-office services for our global organization. To date, the dispute between India and Pakistan involving the Kashmir region, rising tensions between India and China, incidents of terrorism in India, the potential for civil unrest and general geopolitical uncertainties have not adversely affected our operations in India. However, such factors could potentially affect our operations

there in the future. If our access to these services is disrupted, our client relationships could be harmed, our liability for E&O could increase, and our reputation could be damaged, causing our business, operating results and financial condition to be adversely affected.

Sustained increases in compensation expense and the cost of employee benefits could reduce our profitability.

Compensation expense and the cost of current employees’ medical and other benefits, substantially affects our profitability. In the past, we have occasionally experienced significant increases in these costs as a result of macro-economic factors beyond our control, including wage inflation, increases in health care costs, declines in investment returns on pension assets and changes in discount rates and actuarial assumptions used to calculate pension and related liabilities. Our compensation expense ratio in 2023 as a percent of total revenue remained the same as in 2022 at 56%. A significant decrease in the value of our defined benefit pension plan assets, changes to actuarial assumptions used to determine pension plan liabilities, or decreases in the interest rates used to discount the pension plan’s liabilities could cause an increase in pension plan costs in future years. Although we have actively sought to control increases in compensation expense and the cost of employee benefits, we can make no assurance that we will succeed in limiting future cost increases, and continued upward pressure in these costs could reduce our profitability.

Our substantial operations outside the U.S. expose us to risks different than those we face in the U.S.

In 2023, we generated approximately 36% of our combined brokerage and risk management revenues outside the U.S. Our business outside the U.S. presents operational, economic and other risks that are different from, or greater than, the risks we face doing comparable business in the U.S. These include, among others, risks relating to:

• Maintaining awareness of and complying with a wide variety of labor practices and foreign laws, including those relating to labor and employment, data privacy requirements, AI prohibitions on corrupt payments to government officials, export and import duties, environmental policies, sustainability disclosures, as well as laws and regulations applicable to U.S. business operations abroad. We are subject to the risk that we, our employees, our agents, or our affiliated entities, or their respective officers, directors, employees and agents, take actions determined to be in violation of any of these laws, regulations or policies, for which we might be held responsible. Actual or alleged violations could result in substantial fines, sanctions, civil or criminal penalties, debarment from government contracts, curtailment of operations in certain jurisdictions, competitive or reputational harm, litigation or regulatory action and other consequences that might adversely affect our results of operations, financial condition or strategic objectives. While we believe that relations with work councils and trade unions in these countries are and will continue to be satisfactory, work stoppages could occur and we may not be successful in negotiating new collective bargaining agreements. In addition, collective bargaining negotiations may (1) result in significant increases in the cost of labor, (2) divert management’s attention away from operating the business or (3) break down and result in the disruption of operations. The occurrence of any of the preceding conditions could result in increased costs and impair our ability to operate our business. These and other international regulatory risks and labor related risks are described below under “Regulatory, Legal and Accounting Risks”;

• We own interests in firms where we do not exercise management control (such as Casanueva Perez S.A.P.I. de C.V. in Mexico and Renomia, A.S. in the Czech Republic) and are therefore unable to direct or manage the business to realize the anticipated benefits, including mitigation of risks, that could be achieved through full ownership;

• The potential costs, difficulties and risks associated with local regulations across the globe, including the risk of personal liability for directors and officers (for example, in the U.K.) and “piercing the corporate veil” risks under the corporate law regimes of certain countries;

• Difficulties in staffing and managing foreign operations. For example, we are growing our Latin American operations through acquisitions of local family-owned insurance brokerage firms. If we lose a local key employee, hiring and retaining talent locally or finding an internal candidate qualified to transfer to such location could be difficult;

• Less flexible employee relationships, which in certain circumstances has limited our ability to prohibit employees from competing with us after they are no longer employed with us or recover damages, and made it more difficult and expensive to terminate their employment;

• Some of our foreign subsidiaries receive revenues or incur obligations in currencies that differ from their functional currencies. We must also translate the financial results of our foreign subsidiaries into U.S. dollars. Although we

have used foreign currency hedging strategies in the past and currently have some in place, such risks cannot be eliminated entirely, and significant changes in exchange rates may adversely affect our results of operations;

• Conflicting regulations in the countries in which we do business;

• Political and economic instability (including risks relating to undeveloped or evolving legal systems, unstable governments, acts of terrorism and outbreaks of war, including between Russia and Ukraine, and in the Middle East);

• Coordinating our communications, policies and logistics across geographic distances, multiple time zones and in different languages, including during times of crisis management;

• Risks relating to our post-Brexit plan to address the loss of passporting rights between the U.K. and EU with respect to insurance brokerage services. Our plan (implemented in September 2020) involved transferring the European Economic Area (EEA) clients of our U.K.-based regulated entities to a Swedish subsidiary authorized in the EEA, and providing some services through a U.K. branch of such subsidiary. Although this “reverse branch” model is typical of other brokers of a similar size, EU regulators continue to assess their approach to this model, including as a result of, among other developments, the supervisory statement issued by the European Insurance and Occupational Pensions Authority (EIOPA) in February 2023. While we are continuously assessing the impact of these developments, it is difficult to predict such impact on our current plan;

• Unfavorable audits and exposure to additional liabilities relating to various non-income taxes (such as payroll, sales, use, value-added, net worth, property and goods and services taxes) in foreign jurisdictions. In addition, our future effective tax rates could be unfavorably affected by changes in tax rates, discriminatory or confiscatory taxation, changes in the valuation of our deferred tax assets or liabilities, changes in tax laws or their interpretation and the financial results of our international subsidiaries. The Organization for Economic Cooperation and Development (which we refer to as the OECD) continues to issue reports and recommendations as part of its Base Erosion and Profit Shifting project (which we refer to as BEPS), and in response many countries in which we do business have adopted, or are expected to adopt, rules which will change various aspects of the existing framework under which our tax obligations are determined. For example, the majority of EU countries and the U.K. have incorporated some elements of BEPS Pillar 2 into their national laws. Other countries in which we have significant operations, such as Australia and Canada, have either announced an intention to adopt it or started the process of doing so. Additionally, other jurisdictions in which we do business are also reacting to these efforts; for example, Bermuda enacted a corporate tax regime for the first time in 2023. We anticipate further significant developments across several jurisdictions in which we operate in 2024 and 2025;

• Legal or political constraints on our ability to maintain or increase prices;

• Cash balances held in foreign banks and institutions where governments have not specifically enacted formal guarantee programs;

• Epidemics or pandemics at a regional or global level;

• Lost business or other financial harm due to protectionism in the U.S. and in countries around the world, including adverse trade policies, governmental actions affecting the flow of goods, services and currency, and governmental restrictions on the transfer of funds to us from our operations outside the U.S.; and

• The trade and military policies of the U.S. government could further develop in ways that exacerbate the risks described above, or introduce new risks for our international operations.

If any of these risks materialize, our results of operations and financial condition could be adversely affected.

Changes in tax laws could adversely affect us.

We operate in various jurisdictions and are subject to changes in applicable tax laws, treaties, or regulations in those jurisdictions. A material change in the tax laws, treaties, or regulations, or their interpretation, of any jurisdiction with which we do business, or in which we have significant operations, could adversely affect us. For example, in October 2021, the OECD announced that 136 countries and tax jurisdictions have agreed to implement a new Pillar 2 approach to international taxation. The first detailed draft rules under that approach were published in December 2021. The U.K. and the majority of the EU have adopted some aspects of these rules. Other countries in which we have significant operations, including Australia and Canada, have announced an intention to adopt it or started the process of doing so. The new approach came into effect in 2023 in certain jurisdictions, and different countries have implemented the necessary rules in different ways, through their individual agreement to tax treaty changes and through changes to their own domestic tax laws. Pillar 1 exempts regulated financial institutions and we believe we qualify for such exemption. Pillar 2 will establish a global minimum tax rate of 15%, such that multinational

enterprises with an effective tax rate in a jurisdiction below this minimum rate will need to pay additional tax, which could be collected by the parent company’s tax authorities if that parent country adopts Pillar 2 or by those in other countries, depending on whether and how each country implements the OECD’s approach in its tax treaties and domestic tax legislation. Depending on how the jurisdictions in which we operate, and those in which we and our subsidiaries are based, choose to implement the OECD’s approach in their tax treaties and domestic tax laws, particularly if the U.S. does not adopt Pillar 2, we could be adversely affected due to our income being taxed at higher effective rates, once these new rules come into force.

We face significant competitive pressures in each of our businesses.

The insurance brokerage, reinsurance brokerage and employee benefit consulting businesses are highly competitive and many insurance brokerage, reinsurance brokerage and employee benefit consulting organizations actively compete with us in one or more areas of our business around the world. Two of the firms we compete with in the global brokerage and risk management markets have larger revenues than ours. In addition, many other smaller firms that operate nationally or that are strong in a particular country, region or locality may have, in that country, region or locality, an office with revenues as large as or larger than those of our corresponding local office. Our third party claims administration operation also faces significant competition from stand-alone firms as well as divisions of larger firms. Over the past decade or more, private equity sponsors have invested heavily in the insurance brokerage and third party claims administration industries, creating new competitors and strengthening existing ones. Across all of our operations, Insurtech and technology-based start-ups are entering the business. In most cases, these businesses complement or enhance our offerings, but in some cases, they compete with us.

We believe that the primary factors determining our competitive position with other organizations in our industry are the quality of the services we render, the personalized attention we provide, the individual and corporate expertise of the brokers and consultants providing the actual service to the client, our data and analytics capabilities, and our ability to help our clients manage their overall risk exposure and insurance or reinsurance costs. Losing business to competitors offering similar services or products at a lower cost or having other competitive advantages would adversely affect our business.

Consolidation among our existing competitors could create additional competitive pressure on us as such firms grow their market share, take advantage of strategic and operational synergies and develop lower cost structures. In addition, any increase in competition due to new legislative or industry developments could adversely affect us.

These developments include:

• Increased capital-raising by underwriting enterprises, which could result in new risk-taking capital in the industry, which in turn may lead to lower insurance premiums and commissions;

• Underwriting enterprises selling insurance directly to insureds without the involvement of a broker or other intermediary;

• Changes in our business compensation model as a result of regulatory developments;

• Federal and state governments establishing programs to provide health insurance (such as a single-payer system) or, in certain cases, property insurance in catastrophe-prone areas or other alternative market types of coverage, that compete with, or completely replace, insurance products currently offered by underwriting enterprises;

• Climate-change regulation in the U.S. and around the world moving us toward a low-carbon economy, which could create new competitive pressures around climate resilience consulting services and innovative insurance solutions;

• Continued consolidation in the financial services industry, leading to larger financial services institutions offering a wider variety of services including insurance brokerage and risk management services;

• Increased competition from new market participants such as banks, accounting firms, consulting firms and Internet or other technology firms offering risk management or insurance brokerage services, or new distribution channels for insurance such as payroll firms and professional employer organizations; and

• Third party capital providers have entered the insurance and reinsurance risk transfer market offering products and capital directly to our clients. Their presence in the market increases the competitive pressures that we face.

New competition as a result of these or other legislative or industry developments could cause the demand for our products and services to decrease, which could in turn adversely affect our results of operations and financial condition.

Volatility or declines in premiums or other adverse trends in the insurance industry may seriously undermine our profitability.

We derive much of our revenue from commissions and fees for our brokerage services. We do not determine the premiums on which our commissions are generally based. Moreover, premiums are cyclical in nature and may vary widely based on market

conditions. Because of market cycles for insurance and reinsurance product pricing, which we cannot predict or control, our brokerage revenues and profitability can be volatile or remain depressed for significant periods of time.

As underwriting enterprises continue to outsource the production of premium revenue to non-affiliated brokers or agents such as us, those companies may seek to further minimize their expenses by reducing the commission rates payable to agents or brokers. The reduction of these commission rates, along with general volatility and/or declines in premiums, may significantly affect our profitability. Because we do not determine the timing or extent of premium pricing changes, it is difficult to forecast our commission revenues precisely, including whether they will significantly decline. As a result, we may have to adjust our budgets for future acquisitions, capital expenditures, dividend payments, debt repayments and other expenditures to account for unexpected changes in revenues, and any decreases in premium rates may adversely affect the results of our operations.

In addition, there have been and may continue to be various trends in the insurance and reinsurance markets toward alternative insurance markets including, among other things, greater levels of self-insurance, captives, rent-a-captives, risk retention groups and non-insurance capital markets-based solutions to traditional insurance. While historically we have been able to participate in certain of these activities on behalf of our clients and obtain fee revenue for such services, there can be no assurance that we will realize revenues and profitability as favorable as those realized from our traditional brokerage activities. Our ability to generate premium based commission revenue may also be challenged by the growing desire of some clients to compensate brokers based upon flat fees rather than a percentage of premium. This could negatively impact us because fees are generally not indexed for inflation and might not increase with premiums as commissions do or with the level of service provided.

Contingent and supplemental revenues we receive from underwriting enterprises are less predictable than standard commission revenues, and any decrease in the amount of these forms of revenue could adversely affect our results of operations.

A meaningful portion of our revenues consists of contingent and supplemental revenues from underwriting enterprises. Contingent revenues are paid after the insurance contract period, generally in the first or second quarter, based on the growth and/or profitability of business we placed with an underwriting enterprise during the prior year. On the other hand, supplemental revenues are paid up front, on an annual or quarterly basis, generally based on our historical premium volumes with the underwriting enterprise and additional capabilities or services we bring to the engagement. While underwriting enterprises generally maintain supplemental revenues in the current year at a pre-determined rate, that rate can change in future years as described above. If, due to the current economic environment or for any other reason, we are unable to meet an underwriting enterprise’s particular profitability, volume or growth thresholds, as the case may be, or such companies increase their estimate of loss reserves (over which we have no control), actual contingent revenues or supplemental revenues could be less than anticipated, which could adversely affect our results of operations. In the case of contingent revenues, under revenue recognition accounting standards, this could lead to the reversal of revenues in future periods that were recognized in prior periods.

We face a variety of risks in our benefit consulting operations distinct from those we face in our insurance brokerage operations.

Our benefit consulting operations face a variety of risks distinct from those faced by our brokerage operations. The portion of our revenue derived from consulting engagements and special project work is more vulnerable to reduction, postponement, cancellation or non-renewal during an economic downturn than traditional insurance brokerage commissions. For instance, we experienced a decline in such revenue during the economic downturn triggered by the COVID-19 pandemic. In the event of a future recession or economic downturn, we could again experience deterioration in these sources of revenue. A portion of our benefit consulting operation revenue is tied to assets invested by our clients, and when investment returns are adversely affected that portion of our revenue is negatively impacted. Certain areas within our retirement consulting practice may attract a higher level of regulatory scrutiny due to regulators’ historical interest in such matters, including pension-related products and investment advisory and broker-dealer services. In addition, we have made significant investments in product and knowledge development to assist clients as they navigate the complex regulatory requirements relating to employer-sponsored healthcare. New laws or regulations reducing employer-sponsored health insurance, by limiting or eliminating tax-advantaged employer-sponsored benefits or otherwise, could impact clients’ demand for our services. If we are unable to adapt our services to changes in the legal and regulatory landscape around employer-sponsored benefits, our results of operations could be adversely impacted.

We closed the acquisition of Buck in April 2023. Buck is the largest acquisition in the history of our benefit consulting operations and represents a material portion of its revenue. As such, the integration of Buck into our existing operations requires

a more significant effort and involves additional risks compared to our typical acquisitions. See also “We face additional risks relating to acquisitions that are larger than our usual tuck-in acquisitions” described above.

We face a variety of risks in our third-party claims administration operations that are distinct from those we face in our brokerage and benefit consulting operations.

Our third party claims administration operations face a variety of risks distinct from those faced by the rest of our business, including the risks that:

• Epidemics and pandemics that reduce in-person business activity have a greater negative impact because they result in a reduction in the number of claims processed, as experienced during the years 2020, 2021, and the beginning of 2022. If a new epidemic or pandemic were to emerge, these operations could face similar negative impacts in the future;

• RISX-FACS®, our proprietary risk management information system, on which our ability to provide clients with insurance claim settlement and administration services is highly dependent, becomes inoperable for some reason. In addition, we are increasing our use of cloud storage and cloud computing application services supported, upgraded and maintained by third-party vendors. A disruption affecting RISX-FACS®, third-party cloud services or any other infrastructure supporting our business, including key client relationship management software, could have a material adverse effect on our operations, cause reputational harm and damage our employee and client relationships;

• The favorable trend among both underwriting enterprises and self-insured entities toward outsourcing various types of claims administration and risk management services will reverse or slow, causing our revenues or revenue growth to decline;

• Concentration of large amounts of revenue with certain clients results in greater exposure to the potential negative effects of lost business due to changes in management at such clients or changes in state government policies, in the case of our government-entity clients, or for other reasons;

• Contracting terms will become less favorable or the margins on our services will decrease due to increased competition, regulatory constraints or other developments;

• We do not satisfy regulatory requirements related to third party administrators or regulatory developments, including those relating to security, cybersecurity and data privacy as we manage a large amount of highly sensitive and confidential information including personally identifiable information, protected health information and financial information, will impose additional burdens, costs or business restrictions that make our business less profitable;

• Volatility in our case volumes, which are dependent upon a number of factors and difficult to forecast accurately, could impact our revenues;

• Wage inflation, difficulty attracting and retaining talent, and rising technology costs, all of which have been challenging to control since 2020, may impact our ability to remain competitive in the marketplace and profitably fulfill our existing contracts (other than those that provide cost-plus or other margin protection);

• We may be unable to develop further efficiencies in our claims-handling business and may be unable to obtain or retain certain clients if we fail to make adequate improvements in technology or operations; and

• Underwriting enterprises or certain large self-insured entities may create in-house servicing capabilities that compete with our third party administration and other administration, servicing and risk management products, and we could face additional competition from potential new entrants into the global claims management services market.

If any of these risks materialize, our results of operations and financial condition could be adversely affected.

Climate risks, including the risk of an economic crisis, risks associated with the physical effects of climate change and disruptions caused by the transition to a low-carbon economy, could adversely affect our business, results of operations and financial condition.

Climate change has been widely identified by investors and regulators as a systemic risk to the global economy. The U.S. Federal Reserve has warned that a gradual change in investor sentiment regarding climate risk introduces the possibility of abrupt tipping points or significant swings in sentiment, which could create unpredictable follow-on effects in financial markets. If this occurred, not only would our business be negatively impacted by the general economic decline, but a drop in the stock

market affecting our stock price could negatively impact our ability to grow through mergers and acquisitions financed using our common stock.

The transition to a low-carbon economy could harm specific industries or sectors such as oil and gas in ways that could impact our business. Our clients in such industries could go out of business or have reduced needs for insurance-related or consulting services, which could adversely impact our commission revenues, consulting revenues or revenues from managing third-party insurance claims. Negative publicity arising from our association with clients in disfavored businesses or industries, or the perception that we are not sufficiently focused on climate risks facing Gallagher or on reducing our own carbon emissions, as well as resulting from the potential conflict with anti-ESG initiatives from certain U.S. state governments and other stakeholders, could damage our reputation with investors, clients, employees and regulators. In addition, the transition to a low-carbon economy could give rise to the need for innovative insurance, reinsurance and risk management solutions for entirely new industries and companies, as well as advice and services to bolster climate resilience for existing companies. If we fail to innovate and provide valuable services to our clients in response to these changes, we could lose market share to our competitors or new market entrants that do.

We do not generally assume net underwriting risk, other than with respect to de minimis amounts necessary to provide minimum or regulatory capital, and briefly, in connection with our catastrophe bond business, and thus do not generally experience direct material financial implications related to extreme weather events. In addition, we are a professional services firm with people as our most important asset and limited physical operations. However, in cases where underwriting enterprises fail or face significant payouts related to extreme weather events leading them to withdraw from offering certain lines of coverage, as observed in places such as California, Louisiana, and Florida, such withdrawal negatively impacts the overall capacity for risk-taking capital. If this reduction is substantial, it could limit our ability to secure certain lines of coverage for our clients, ultimately reducing our revenues and profitability. Underwriting enterprises are also clients of Gallagher Re, so any of the negative developments for underwriting enterprises referred to above could also reduce our commission revenues from such clients.

Regulatory, Legal and Accounting Risks

Improper disclosure of confidential, personal or proprietary information and cybersecurity attacks or other security breach of our information systems, or those of third-party vendors we rely on, could result in regulatory scrutiny, legal liability or reputational harm, and could adversely affect our business, financial condition and reputation.

We collect, use, store, transmit and otherwise process, confidential, personal and proprietary information relating to our company, acquisition targets, our employees and our clients. This information includes personally identifiable information, protected health information, financial information and intellectual property.

We maintain policies, procedures and technical safeguards designed to protect the security and privacy of confidential, personal and proprietary information. Nonetheless, we cannot eliminate the risk of human error, malfeasance or highly sophisticated cyber-attacks, which are heightened as a result of the war in Ukraine and in the Middle East or other cybersecurity incidents. It is possible that our security controls, employee training and other aspects of our cybersecurity safeguards are not effective. See “The substantial increase in remote work among our employees subjects us to certain challenges and risks” above for a discussion of how remote work enhances these risks.

We have and continue to invest in technology security initiatives, policies, resources and employee training. The cost and operational consequences of implementing, maintaining and enhancing appropriate technical measures is high. Given the continuously evolving cyber threat landscape, it will become increasingly difficult to detect, defend against and remediate cybersecurity incidents and data breaches. If we are unable to effectively maintain and enhance our system safeguards in line with evolving cyber threats, including in connection with the integration of acquisitions, we may incur unexpected costs, including litigation costs, regulatory enforcement action, loss of clients, reputational damage, and certain of our systems may become more vulnerable to unauthorized access.

We rely on IT and third party vendors to support our business activities, including our secure processing of personal, confidential, sensitive, proprietary and other types of information. Despite ongoing efforts to improve our and our vendors’ ability to protect and defend against cyber-attacks, we may not be able to protect all of our data. Cybersecurity incidents and data breaches of certain systems on which we rely have occurred, such as the ransomware incident that occurred in 2020 (as disclosed in previous filings), and we also have from time to time experienced other cybersecurity incidents such as computer viruses, unauthorized parties gaining access to our information technology systems, and privacy incidents, such as loss or inadvertent transmission of data, although to date we have not been materially impacted by such events. In the future, breaches of any third-party or internal systems may result from circumvention of security systems, denial-of-service, hacking, “phishing”,

computer viruses, ransomware, malware, or other cyber-attacks, employee or insider error, malfeasance, social engineering, physical breaches or other actions. Furthermore, the risk from threat actors has increased due to the rapid development of AI capabilities.

We are an acquisitive organization. The process of integrating information systems of businesses we acquire is complex and exposes us to additional risk as we might not adequately identify weaknesses in the targets’ information systems or information handling, privacy and security policies and protocols, which could expose us to unexpected liabilities or make our own systems and data more vulnerable to cybersecurity incidents. Any future, material cybersecurity or data incident, may cause us to experience unauthorized access, exfiltration, manipulation, corruption, loss or disclosure of our proprietary, client, employee, or other data, reputational harm, the inability to render services due to system outages or other business disruptions, loss of clients and revenue, regulatory action and scrutiny, sanctions or other statutory penalties, litigation, liability for failure to safeguard clients’ information, increases in cybersecurity costs or financial losses. Any of the foregoing may be exacerbated by a delay or failure to detect a cybersecurity incident or the full extent of such incident. In addition, disclosure or media reports of actual or perceived security vulnerabilities to our systems or those of our third-party service providers, even if no breach has been attempted or occurred, could lead to reputational harm, loss of customers and revenue, or increased regulatory actions oversight and scrutiny.

Such incidents could result in confidential, personal or proprietary information being lost or stolen, used to perpetuate fraud, maliciously made public, surreptitiously modified, or rendered inaccessible for a period of time. We cannot ensure that any limitations of liability provisions in our agreements with clients, vendors and other third parties with which we do business would be enforceable or adequate or would otherwise protect us from any liability with respect to claims arising from a cybersecurity, data or similar incident.

As we experienced in connection with the 2020 ransomware incident referred to above, during a cybersecurity incident, we might have to take our systems offline, which could interfere with services to our clients or damage our reputation. While we endeavor to design and implement technologies, policies and procedures to identify such incidents as quickly as possible, any response would take substantial time, and there may be extensive delays before we obtain full and reliable information. During such time we would not necessarily know the extent of the harm or how best to remediate it, and certain errors or actions could be repeated or compounded before they are discovered and remediated, all of which may further increase the costs and consequences of such incident. Any of these losses may not be insured against or be fully covered by insurance we maintain.

In addition, the competition for talent is high in the cybersecurity and privacy space, and we may not be able to hire, develop or retain suitable talent that we need to be capable of minimizing, identifying, mitigating or remediating these risks.

With respect to our commercial arrangements with third party vendors, we have processes designed to require third party IT outsourcing, offsite storage and other vendors to agree to maintain certain standards with respect to their storage, protection and transfer of confidential, personal and proprietary information. However, we remain at risk of a cyber or data incident due to the intentional or unintentional non-compliance by a vendor’s employee or agent, the breakdown of a vendor’s processes, or a cybersecurity incident involving vendor’s information systems. We cannot ensure that any provisions in our agreements with these vendors would be enforceable or adequate or would otherwise protect us from any liability in connection with these incidents.

Any of the foregoing may have a material adverse effect on our business, financial condition and reputation.

We are subject to a number of contingencies and legal proceedings which, if determined unfavorably to us, would adversely affect our financial results.

We are or have been subject to numerous claims, tax assessments, lawsuits and proceedings that arise in the ordinary course of business. Such claims, lawsuits and other proceedings include claims for damages based on allegations that our employees or sub-agents improperly failed to procure coverage, report claims on behalf of clients, provide underwriting enterprises with complete and accurate information relating to the risks being insured, or provide clients with appropriate consulting, advisory, pension and claims handling services. There is the risk that our employees or sub-agents may fail to appropriately apply funds that we hold for our clients on a fiduciary basis. Certain of our benefits and retirement consultants provide investment advisory or decision-making services to clients. Additionally, Gallagher Re operates a securities business. If our clients experience investment losses, our reputation could be damaged and our financial results could be negatively affected as a result of claims asserted against us and lost business. Where appropriate, we have established provisions against these matters that we believe are adequate in light of current information and legal advice, and we adjust such provisions from time to time based on current material developments. The damages claimed in such matters are or may be substantial, including, in many instances, claims for punitive, treble or other extraordinary damages. It is possible that, if the outcomes of these contingencies and legal proceedings

were not favorable to us, it could materially adversely affect our future financial results. In addition, our results of operations, financial condition or liquidity may be adversely affected if, in the future, our insurance coverage proves to be inadequate or unavailable or we experience an increase in liabilities for which we self-insure. We have purchased E&O insurance and other insurance to provide protection against losses that arise in such matters. Accruals for these items, net of insurance receivables, when applicable, have been provided to the extent that losses are deemed probable and are reasonably estimable. These accruals and receivables are adjusted from time to time as current developments warrant.

As more fully described in Note 17 to our 2023 consolidated financial statements, we are a defendant in various legal actions incidental to our business, including but not limited to matters related to employment practices, alleged breaches of non-compete or other restrictive covenants, theft of trade secrets, breaches of fiduciary duties, intellectual property infringement and related causes of action. We are also periodically the subject of inquiries and investigations by regulatory and taxing authorities into various matters related to our business. For example, our micro-captive advisory services business has been under investigation by the IRS since 2013. We currently believe that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations or cash flows. However, legal proceedings and government investigations are subject to inherent uncertainties, and unfavorable rulings or other adverse events could occur, including the payment of substantial monetary damages or an injunction or other order prohibiting us from selling one or more products at all or in particular ways, precluding particular business practices or requiring other remedies, which may result in a material adverse impact on our business, results of operations or financial position. In addition, regardless of any unfavorable ruling, any such matter could expose us to negative publicity, reputational damage, harm to our client or employee relationships, or diversion of personnel and management resources, which could adversely affect our ability to recruit quality brokers and other significant employees to our business, and otherwise adversely affect our results of operations.

Changes in data privacy and protection laws and regulations, or any failure to comply with such laws and regulations, could adversely affect our business and financial results.

We are subject to a variety of continuously evolving and developing laws and regulations globally regarding privacy, data protection, and data security, including those related to the collection, storage, handling, use, disclosure, transfer, destruction, and security of personal data. These laws apply to transfers of personal information among our affiliates, as well as to transactions we enter into with third party vendors and clients. Significant uncertainty exists as privacy and data protection laws evolve and may be interpreted and applied differently from country to country and state to state, and may create inconsistent or conflicting requirements. Some of these laws provide rights to individuals to access, correct, and delete their personal information and to obtain copies at the expense of the business entities that process their data. Some of these laws carry heavy penalties for violations, e.g., fines of up to 4% of worldwide revenue under the U.K. Data Protection Act and the European Union General Data Protection Regulation (GDPR) and up to $7,500 per intentional violation under the California Consumer Privacy Act (CCPA). In the U.S., there is pending federal legislation and a number of states have proposed their own comprehensive data privacy bills similar to the GDPR and CCPA, with some of those laws already in effect, and others coming into effect between 2024 and 2026.

India and other countries where we have operations outside the U.S. have proposed or have enacted sweeping data protection laws, and in some cases we are subject to sector and personal data localization laws that may require that data or personal data stay within their borders, such as India's IRDIA (Maintenance of Insurance Records) Regulation, 2015.

In addition, in the U.S., legislators are continuing to enact comprehensive cybersecurity laws. For example, we are subject to the New York State Department of Financial Services Cybersecurity Regulation for Financial Services Companies, which were substantively amended in 2023. We also expect to be subject to a variety of laws and regulations governing AI, such as the proposed EU AI Act which is expected to be enacted in 2024. These laws and regulations are still evolving, and while we are assessing how regulators may apply existing consumer protection, data protection and other similar laws to AI, there is uncertainty regarding the scope of new laws and how existing laws will apply. Due to this uncertainty, we may face challenges complying with existing and new laws, and our policies and governance frameworks may not be successful in mitigating these risks. See also “We are subject to risks associated with AI.”

Adhering to the increased obligations imposed by various new and emerging laws causes us to incur substantial expenses in connection with developing, implementing, and securing our systems and effectively implementing data privacy governance policies for the lawful processing of personal data. Such increased obligations also result in the allocation of additional resources towards new privacy compliance processes and enhanced technologies, further contributing to our IT and compliance costs. In addition, enforcement actions and investigations by regulatory authorities related to data security incidents and privacy violations continue to increase. The enactment of more restrictive laws, rules, regulations, or future enforcement actions or investigations

could impact us through increased costs or restrictions on our business, and noncompliance could result in regulatory penalties and significant legal liability.

We could be adversely affected by violations or alleged violations of laws that impose requirements for the conduct of our overseas operations, including the FCPA, the U.K. Bribery Act or other anti-corruption laws, sanctions laws and FATCA.

In countries outside the U.S., a risk exists that our employees or third parties acting on our behalf, including correspondent brokers, consultants, introducers, partners or agents, could engage in business practices prohibited by applicable laws and regulations, including anti-bribery and anti-corruption laws, and sanctions laws such as those administered by the U.S. Department of the Treasury’s Office of Foreign Assets Control. Anti-bribery and anti-corruption laws, such as the FCPA and the U.K. Bribery Act, generally prohibit companies from making improper payments to foreign officials and require companies to keep accurate books and records and maintain appropriate internal controls. Trade and financial sanctions laws generally restrict the ability to engage in trade with, or provide goods or services, to designated governments or other parties, or may require freezing of such parties’ assets. We operate in some parts of the world that have experienced governmental corruption. In such parts of the world, in certain circumstances, local customs and practice might not be consistent with the requirements of anti-bribery and anti-corruption laws. Similarly, some of these countries do not implement sanctions laws and may not restrict trade with parties designated as sanctions targets under U.S., U.K. or EU laws.

Our policies mandate strict compliance with such laws and we devote substantial resources to programs designed to ensure compliance, including investigating business practices and taking steps to address the risk that our employees, third party representatives, partners or agents will engage in business practices that are prohibited by our policies and/or such laws and regulations.

We offer client service capabilities in many countries around the world through a network of third-party representatives acting on our behalf such as correspondent brokers and consultants. In certain limited instances, we also work with third-party introducers that provide services for certain clients. There is a risk that our third party representatives engage in business practices that are prohibited by our internal policies or violate applicable laws and regulations, such as the FCPA and the U.K. Anti-Bribery Act. As previously disclosed, during 2022, we received a subpoena from the FCPA Unit of the DOJ seeking information related to our insurance business with public entities in Ecuador. During the fourth quarter of 2023, the DOJ informed us that it has closed its inquiry and would not be pursuing enforcement action against us.

Violations by us or our third party representatives could result in significant internal investigation costs and legal fees, civil and criminal penalties, including prohibitions on the conduct of our business, and reputational harm.

We may also be subject to legal liability and reputational damage if we violate trade sanctions laws of the U.S., the EU and other jurisdictions in which we operate. In addition, FATCA requires certain of our subsidiaries, affiliates and other entities to obtain valid FATCA documentation from payees prior to remitting certain payments to such payees and our failure to do so properly could result in penalties.

We are subject to regulation worldwide. If we fail to comply with regulatory requirements or if regulations change in a way that adversely affects our operations, we may not be able to conduct our business, or we may be less profitable.

Many of our activities throughout the world, especially regulated businesses such as our insurance brokerage, securities broker-dealer and investment advisory services, are subject to supervision and regulations promulgated by regulatory or self-regulatory bodies such as the SEC, the NYSE, the DOJ, the IRS, the Financial Crimes Enforcement Network, the FTC and FINRA in the U.S., the Financial Conduct Authority in the U.K., the Australian Securities and Investments Commission in Australia and insurance regulators in nearly every jurisdiction in which we operate. Our retirement-related consulting and investment advisory services are subject to pension law and financial regulation in many countries. Our activities are also subject to a variety of other laws, rules and regulations addressing licensing, data privacy, AI, wage-and-hour standards, employment and labor relations, competition, anti-corruption, currency, the conduct of business, reserves and the amount of local investment with respect to our operations in certain countries. For example, the DOJ revised its Corporate Criminal Enforcement Policies and Practices to include a section on the use of personal devices and third-party messaging applications, indicating that their use poses significant risk to companies and suggesting that it intends to investigate seriously whether companies have ensured that data from these sources is preserved for investigations; additionally, the FTC proposed a rule that would prevent employers from entering into non-competes with employees and require employers to rescind existing non-competes. These and other forms of regulatory action could reduce our profitability or growth by increasing the costs of compliance, increasing the risk of costly enforcement actions, restricting the products or services we sell, the markets we enter, the methods by which we sell our products and services, or the prices we can charge for our services and the form of compensation we can accept from our clients, underwriting

enterprises and third parties. As our operations grow around the world, it is increasingly difficult to monitor and enforce regulatory compliance across the organization. A compliance failure by even one of our smallest branches could lead to a loss of reputation in the local market, and litigation and/or disciplinary actions that may include compensating clients for loss, the imposition of penalties, and/or the loss of our authorization to operate. In all such cases, we would also likely incur significant internal investigation costs and legal fees.

The global nature of our operations increases the complexity and cost of compliance with laws and regulations, including increased staffing needs, the development of new policies, procedures and internal controls and providing training to employees in multiple locations, adding to our cost of doing business. Many of these laws and regulations may have differing or conflicting legal standards across jurisdictions, increasing further the complexity and cost of compliance. In emerging markets and other jurisdictions with less developed legal systems, local laws and regulations may not be established with sufficiently clear and reliable guidance to provide us with adequate assurance that we are aware of all necessary licenses to operate our business, that we are operating our business in a compliant manner, or that our rights are otherwise protected. In addition, major political and legal developments in jurisdictions in which we do business may lead to new regulatory costs and challenges. For example, China adopted a “blocking” statute similar to that of the EU requiring compliance with certain Chinese laws if they conflict with U.S. laws. Rising global tensions and protectionism may also lead other countries to adopt similar blocking statutes, which could make it more difficult and costly for us to expand our operations globally.

Changes in legislation or regulations and actions by regulators, including changes in administration and enforcement policies, or the failure of state and local governments to follow through on agreed-upon state and local tax credits or other tax related incentives, could adversely affect our results of operations or require operational changes that could result in lost revenues or higher costs or hinder our ability to operate our business.

For example, the method by which insurance brokers are compensated has received substantial scrutiny in the past because of the potential for conflicts of interest. The potential for conflicts of interest arises when a broker is compensated by two parties in connection with the same or similar transactions. The vast majority of the compensation we receive for our work as insurance and reinsurance brokers is in the form of retail commissions and fees. We receive additional revenue from underwriting enterprises, separate from retail commissions and fees, including, among other things, contingent and supplemental revenues and payments for consulting and analytics services we provide them. Future changes in the regulatory environment may impact our ability to collect these revenues. Adverse regulatory, legal or other developments regarding these revenues could have a material adverse effect on our business, results of operations or financial condition, expose us to negative publicity and reputational damage and harm our relationships with clients, underwriting enterprises or other business partners.

In addition, as regulators and investors increasingly focus on climate change and other sustainability issues, we are exposed to the risk of frameworks and regulations being adopted that require significant effort to comply with and which are ill-adapted to our operations. For example, pursuant to the CSRD, in 2023 the first set of EU sustainability reporting standards (which we refer to as ESRS) has been developed by the European Financial Reporting Advisory Group (which we refer to as EFRAG) and adopted by the EU. EFRAG will continue to issue sector-specific and non-EU applicable ESRS in the coming years, with such standards to be tailored to EU policy positions which may be different or contradictory with those applicable to our business in other jurisdictions. The CSRD is expected to entail substantial disclosure obligations in future years for us and some of our EU subsidiaries. The SEC has also proposed new climate change disclosure requirements, which are expected to become effective in 2024. Additionally, the state of California has enacted disclosure rules similar to the SEC rules, which will become effective between 2024 and 2026. Furthermore, in the U.K., our business is subject to a number of disclosure obligations under different sustainability frameworks, such as the Task Force on Climate-Related Financial Disclosures framework; Australia is planning to enact mandatory disclosures based on the International Sustainability Standards Board standards (which we refer to as ISSB) in 2024; and other jurisdictions, such as Canada and Brazil, have also announced that they plan to implement ISSB-based disclosures. Compliance with such rules and frameworks will require significant effort and could divert management’s attention and resources, which could adversely affect our operating results.

Changes in our accounting estimates and assumptions could negatively affect our financial position and operating results.

We prepare our financial statements in accordance with U.S. generally accepted accounting principles (which we refer to as GAAP). These accounting principles require us to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of our consolidated financial statements. We are also required to make certain judgments and estimates that affect the disclosed and recorded amounts of revenues and expenses related to revenue recognition and deferred costs - see Note 4 to our 2023 consolidated financial statements. We periodically evaluate our estimates and assumptions, including those relating to the valuation of goodwill and other intangible assets, investments, income taxes, revenue recognition, deferred costs, stock-based compensation, claims handling obligations, retirement plans, litigation and contingencies. We base our estimates on historical experience and various assumptions that we

believe to be reasonable based on specific circumstances. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed in our consolidated financial statements. Further, in August 2022, the U.S. enacted tax legislation commonly referred to as the Inflation Reduction Act (which we refer to as the IRA) which, among other things, implements a corporate book minimum tax and an excise tax on stock buy backs beginning for years after 2022. While guidance is still being issued, our current understanding of these new rules suggests that we will not face significant impacts from these changes. As additional guidance relating to the IRA is released, our estimates related to the IRA may change. Additionally, changes in accounting standards (see Note 2 to our 2023 consolidated financial statements) could increase costs to the organization and could have an adverse impact on our future financial position and results of operations.

Limited protection of our intellectual property could harm our business and our ability to compete effectively, and we face the risk that our services or products may infringe upon the intellectual property rights of others. We cannot guarantee that trade secret, trademark and copyright law protections, or our internal policies and procedures regarding our management of intellectual property, are adequate to deter misappropriation of our intellectual property. Existing laws of some countries in which we provide services or products may offer only limited protection of our intellectual property rights. Also, we may be unable to detect the unauthorized use of our intellectual property and take the necessary steps to enforce our rights, which may have a material adverse impact on our business, financial condition or results of operations. We cannot be sure that our services and products, or the products of others that we offer to our clients, do not infringe on the intellectual property rights of third parties, and we may have infringement claims asserted against us or our clients. These claims may harm our reputation, result in financial liability, consume financial resources to pursue or defend, and prevent us from offering some services or products. In addition, these claims, whether with or without merit, could be expensive, take significant time and divert management’s focus and resources from business operations. Successful challenges against us could require us to modify or discontinue our use of technology or business processes where such use is found to infringe or violate the rights of others, or require us to purchase licenses from third parties, any of which could adversely affect our business, financial condition and operating results.

Risks Relating to our Investments, Debt and Common Stock

Our clean energy investments are subject to various risks and uncertainties.

We generated tax credits under IRC Section 45 from 2009 to 2021. As of December 31, 2023, we had generated a total of $1,706.1 million in IRC Section 45 tax credits, of which approximately $891.4 million have been used to offset U.S. federal tax liabilities and $814.7 million remain unused and available to offset future U.S. federal tax liabilities.

Our ability to use tax credits under IRC Section 45 depends upon the operations in which we invested having satisfied the conditions set forth in IRC Section 45. These include, among others, the “placed-in-service” condition and requirements relating to qualified emissions reductions, coal sales to unrelated parties and at least one of the operations’ owners qualifying as a “producer” of refined coal. While we have received some degree of confirmation from the IRS relating to our ability to claim these tax credits, the IRS could ultimately determine that the operations did not satisfy the conditions set forth in IRC Section 45. The ongoing implementation of Pillar 2 in the U.S. and around the world could also negatively impact our ability to use these tax credits in the timeframe and manner that would be beneficial to us. Similarly, the law permitting us to claim IRC Section 29 tax credits (related to our prior synthetic coal operations) expired on December 31, 2007. At December 31, 2023, we had exposure with respect to $108.0 million of previously earned tax credits under IRC Section 29. We believe our claim for IRC Section 29 tax credits in 2007 and prior years was in accordance with IRC Section 29 and four private letter rulings previously obtained by IRC Section 29 related limited liability companies in which we had an interest. We understand these private letter rulings were consistent with those issued to other taxpayers and we have received no indication from the IRS that it will seek to revoke or modify them. In addition, the IRS audited certain of the IRC Section 29 facilities without requiring any changes.

While none of our prior IRC Section 29 operations are currently under audit, two of the IRC Section 45 operations in which we are invested are under audit by the IRS, and it has taken the position that certain losses and tax credits should be disallowed. We are defending this matter vigorously. Additionally, one of these partnerships received a notice from the IRS disallowing our co-investors from claiming tax credits. The partnership defended its position in tax court and prevailed in August 2019. The decision was affirmed by the D.C. Court of Appeals. The IRS could place the remaining IRC Section 45 operations and any of the prior IRC Section 29 operations under audit. An adverse outcome with respect to our ability to claim tax credits under any such audit would likely cause a material loss or cause us to be subject to liability under indemnification obligations related to prior sales of partnership interests in IRC Section 29 tax credits.

There is a risk that foreign laws will not protect the intellectual property associated with The Chem-Mod™ Solution to the same extent as U.S. laws, leaving us vulnerable to companies outside the U.S. who may attempt to copy such intellectual property. In addition, other companies may make claims of intellectual property infringement with respect to The Chem-Mod™ Solution.

For example, in July 2019, Midwest Energy Emissions Corp. and MES Inc. (which we refer to together, as Midwest Energy) filed a patent infringement lawsuit in the United States District Court for the District of Delaware against us, Chem Mod LLC and numerous other related and unrelated parties. The complaint alleged that the named defendants infringed patents held exclusively by Midwest Energy and sought unspecified damages and injunctive relief. In 2023, we settled this matter for an amount that was not material and without admitting any wrongdoing. However, litigation is inherently uncertain and it is not possible for us to predict the ultimate outcome of any future claims against us by other parties.

The IRC Section 45 operations in which we have invested and the by-products from such operations may result in environmental and product liability claims and environmental compliance costs.

The construction and operation of the IRC Section 45 operations were subject to federal, state and local laws, regulations and potential liabilities arising under or relating to the protection or preservation of the environment, natural resources and human health and safety. Some environmental laws, without regard to fault or the legality of a party’s conduct, impose liability on certain entities that are considered to have contributed to, or are otherwise responsible for, the release or threatened release of hazardous substances into the environment. One party may, under certain circumstances, be required to bear more than its share or the entire share of investigation and cleanup costs at a site if payments or participation cannot be obtained from other responsible parties. By having used The Chem‑Mod™ Solution at locations owned and operated by others, we and our partners may be exposed to the risk of being held liable for environmental damage from releases of hazardous substances we may have had little, if any, involvement in creating. Such risk remains even after production ceases at an operation to the extent the environmental damage can be traced to the types of chemicals or compounds used or operations conducted in connection with The Chem-Mod™ Solution. Increasing attention to global climate change has resulted in an increased possibility of regulatory attention and private litigation. For example, claims have been made against certain energy companies alleging that greenhouse gas emissions constitute a public nuisance. In addition to the possibility of our being named in such actions, we and our partners could face the risk of environmental and product liability claims related to concrete incorporating fly ash produced using The Chem-Mod™ Solution. No assurances can be given that contractual arrangements and precautions taken to provide for assumption of these risks by facility owners or operators, or other end users, will result in that facility owner or operator, or other end user, accepting full responsibility for any environmental or product liability claim. Nor can we or our partners be certain that facility owners or operators, or other end users, fully complied with all applicable laws and regulations, and this could result in environmental or product liability claims. It is also not uncommon for private claims by third parties alleging contamination to also include claims for personal injury, property damage, nuisance, diminution of property value, or similar claims. Furthermore, many environmental, health and safety laws authorize citizen suits, permitting third parties to make claims for violations of laws or permits. Our insurance may not cover all environmental risk and costs or may not provide sufficient coverage in the event of an environmental or product liability claim, and defense of such claims can be costly, even when such defense prevails. If significant uninsured losses arise from environmental or product liability claims, or if the costs of environmental compliance increase for any reason, our results of operations and financial condition could be adversely affected.

We have debt outstanding that could adversely affect our financial flexibility and subjects us to restrictions and limitations that could significantly impact our ability to operate our business.

As of December 31, 2023, we had total consolidated debt outstanding of approximately $8.0 billion. The level of debt outstanding each period could adversely affect our financial flexibility. We also bear risk at the time our debt matures. Our ability to make interest and principal payments, to refinance our debt obligations and to fund our acquisition program and planned capital expenditures will depend on our ability to generate cash from operations. This, to a certain extent, is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control, such as an environment of rising interest rates. A small portion of our private placement debt consists of floating rate notes, and interest payments under our senior revolving credit facility are based on a floating rate which exposes us to the risk of a changing or unknown rate environment. Our indebtedness will also reduce the ability to use that cash for other purposes, including working capital, dividends to stockholders, acquisitions, capital expenditures, share repurchases, and general corporate purposes. If we cannot service our indebtedness, we may have to take actions such as selling assets, issuing additional equity or reducing or delaying capital expenditures, strategic acquisitions, and investments, any of which could impede the implementation of our business strategy or prevent us from entering into transactions that would otherwise benefit our business. Additionally, we may not be able to effect such actions, if necessary, or refinance any of our indebtedness on commercially reasonable terms, or at all.

The agreements governing our debt include covenants that, among other things, restrict our ability to dispose of assets, incur additional debt, engage in certain asset sales, mergers, acquisitions or similar transactions, create liens on assets, engage in certain transactions with affiliates, change our business or make investments, and require us to comply with certain financial and legal covenants. The restrictions in the agreements governing our debt may prevent us from taking actions that we believe would be in the best interest of our business and our stockholders and may make it difficult for us to execute our business strategy successfully or effectively compete with companies that are not similarly restricted. We may also incur future debt obligations

that might subject us to additional or more restrictive covenants that could affect our financial and operational flexibility, including our ability to pay dividends. We cannot make any assurances that we will be able to refinance our debt or obtain additional financing on terms acceptable to us, or at all. A failure to comply with the restrictions under the agreements governing our debt could result in a default under the financing obligations or could require us to obtain waivers from our lenders for failure to comply with these restrictions. The occurrence of a default that remains uncured or the inability to secure a necessary consent or waiver could cause our obligations with respect to our debt to be accelerated and have a material adverse effect on our financial condition and results of operations.

Our reinsurance securities business serves from time to time as the underwriter and initial purchaser of securities (such as catastrophe bonds) issued by our reinsurance company clients. This involves us, acting as an intermediary, to use our capital on hand and short-term borrowings to cover the purchase price of the securities. We place the securities with investors and use the funds we receive from them to repay our obligations. Risks specific to these short-term borrowings include counterparty risk (which is the risk that arises due to uncertainty about a counterparty’s ability to meet its obligations) with respect to the investors. Non-performance by any of our counterparties in these transactions for financial or other reasons could potentially expose us to material losses.

Credit rating downgrades would increase our financing costs and could subject us to operational risk.

If we need to raise capital in the future (for example, in order to maintain adequate liquidity, fund maturing debt obligations or finance acquisitions or other initiatives), credit rating downgrades would increase our financing costs, and could limit our access to financing sources. We would also face the risk of a credit rating downgrade if we do not retire or refinance the debt to levels acceptable to the credit rating agencies in a timely manner. Further, a downgrade to a rating below investment-grade could result in greater operational risks through increased operating costs and increased competitive pressures.

We are a holding company and, therefore, may not be able to receive dividends or other distributions in needed amounts from our subsidiaries.

We are organized as a holding company, a legal entity separate and distinct from our operating subsidiaries. As a holding company without significant operations of our own, we are dependent upon dividends and other payments from our operating subsidiaries to meet our obligations for paying principal and interest on outstanding debt obligations, for paying dividends to stockholders, repurchasing our common stock and for corporate expenses. In the event our operating subsidiaries are unable to pay sufficient dividends and other payments to us, we may not be able to service our debt, pay our obligations, pay dividends on or repurchase our common stock.

Further, we derive a meaningful portion of our revenue and operating profit from operating subsidiaries located outside the U.S. Since the majority of financing obligations as well as dividends to stockholders are paid from the U.S., it is important to be able to access the cash generated by our operating subsidiaries located outside the U.S. in the event we are unable to meet these U.S. based cash requirements.

Funds from our operating subsidiaries outside the U.S. may be repatriated to the U.S. via stockholder distributions and intercompany financings, where necessary. A number of factors may arise that could limit our ability to repatriate funds or make repatriation cost prohibitive, including, but not limited to the imposition of currency controls and other government restrictions on repatriation in the jurisdictions in which our subsidiaries operate, fluctuations in foreign exchange rates, the imposition of withholding and other taxes on such payments and our ability to repatriate earnings in a tax-efficient manner.

In the event we are unable to generate or repatriate cash from our operating subsidiaries for any of the reasons discussed above, our overall liquidity could deteriorate and our ability to finance our obligations, including to pay dividends on or repurchase our common stock, could be adversely affected.

Future sales or other dilution of our equity could adversely affect the market price of our common stock.

An important way we grow our business is through acquisitions. One method of acquiring companies or otherwise funding our corporate activities is through the issuance of additional equity securities. The issuance of any additional shares of common or of preferred stock or convertible securities could be substantially dilutive to holders of our common stock. Moreover, to the extent that we issue restricted stock units, performance stock units, options or warrants to purchase shares of our common stock in the future and those options or warrants are exercised or as the restricted stock units or performance stock units vest, our stockholders will experience further dilution. In November 2022, we established an "at the market" equity offering program (which we refer to as an ATM program) pursuant to which we may offer and sell up to 3,000,000 shares of our common stock. We have refreshed our ATM program in the past and expect to refresh our ATM program periodically. Sales under our ATM

program will result in additional dilution for our stockholders. Holders of our common stock have no preemptive rights that entitle holders to purchase their pro rata share of any offering of shares of any class or series and, therefore, such sales or offerings could result in increased dilution to our stockholders. The market price of our common stock could decline as a result of sales of shares of our common stock or the perception that such sales could occur.

Item 1B. Unresolved Staff Comments.

Not applicable.

Item 1C. Cybersecurity.

We have implemented a cybersecurity program to assess, identify, and manage risks from cybersecurity threats that could adversely and materially affect the confidentiality, integrity, and availability of our information and information systems. We maintain administrative, technical, and physical safeguards designed to protect the security and privacy of confidential, personal and proprietary information. Our cybersecurity program is aligned with notable control frameworks such as the NIST CSF (National Institute of Standard and Technology Cybersecurity Framework) and ISO (International Organization for Standardization) 27001.

Our cybersecurity program leverages people, processes, and technology to identify and respond to cybersecurity threats. We have a global incident response capability. We also have established a dedicated vendor assessment team, which employs systems and processes designed to oversee, identify, and reduce the potential impact of a security incident at a third-party vendor, service provider or customer or otherwise implicating the third-party technology and systems we use, as well as a global training and awareness program. We also continuously test and assess our cybersecurity posture, including through annual third-party risk assessments performed by reputable assessors, consultants and auditors. A global FAIR (Factor Analysis of Information Risk) assessment is conducted at least annually to update our cybersecurity risks and corresponding mitigations.

Our Chief Information Security Officer (CISO), working together with our Chief Information Officer (CIO), oversees a team of employees dedicated to cybersecurity. Our CISO receives ongoing updates from the cybersecurity team regarding the prevention, detection, mitigation, and remediation of cybersecurity incidents and regularly reports to the CIO. Our CISO is an active member of our management-level enterprise risk management committee, which has broad oversight of the company’s enterprise risks, including cybersecurity risks. In addition, our CIO and CISO both attend regular meetings of the executive officer team, including our Chief Executive Officer, Chief Financial Officer and other senior executive officers, dedicated to compliance and risk, and report on cybersecurity matters as appropriate. Our Board of Directors has delegated primary responsibility for the oversight of cybersecurity matters to the Risk and Compliance Committee; however, the full board reviews significant cybersecurity matters as appropriate. Our CIO and CISO report on cybersecurity and information security at each meeting of the Risk and Compliance Committee.

Our CIO has more than 30 years of experience, including from his prior business and technology leadership roles at Aegon N.V., Citigroup, Inc. and JP Morgan Chase & Company. Our CISO has more than 20 years of cybersecurity experience. Prior to joining us he was Senior Vice President, Chief Information Security Officer at Brighthouse Financial, served as Technology Vice President & Chief Information Security Officer for GE Healthcare and started his career at Allstate Insurance Company. He also holds security, privacy and risk certifications, including Certified Information Systems Auditor, Certified Information Security Manager and Certified Information Systems Security Professional.

To date, risks from cybersecurity threats, including as a result of any previous cybersecurity incidents, have not materially affected us, including our business strategy, results of operations or financial condition, and we do not believe that such risks are reasonably likely to have such an effect over the long term. However, due to evolving cybersecurity threats, we may not be able to protect all information systems and, as an acquisitive organization, integrating information systems as we acquire new businesses may expose us to unexpected liabilities or increase our vulnerability. Additional information on cybersecurity risks we face is discussed in Item 1A of Part I, “Risk Factors,” which should be read in conjunction with the foregoing information.

Item 2. Properties.

The executive offices of our corporate segment and certain subsidiary and branch facilities of our brokerage and risk management segments are located at 2850 Golf Road, Rolling Meadows, Illinois, where we own approximately 360,000 square feet of space, and can accommodate 2,000 employees at peak capacity.

Elsewhere, we generally operate in leased premises related to the facilities of our brokerage and risk management operations. We prefer to lease office space rather than own real estate related to the branch facilities of our brokerage and risk management segments. Certain of our office space leases have options permitting renewals for additional periods. In addition to minimum fixed rentals, a number of our leases contain annual escalation clauses generally related to increases in an inflation index. See

Notes 15 and 17 to our 2023 consolidated financial statements for information with respect to our lease commitments as of December 31, 2023.

Item 3. Legal Proceedings.

Please see the information set forth in Note 17 to our consolidated financial statements, included herein, under “Litigation, Regulatory and Taxation Matters.”

Item 4. Mine Safety Disclosures.

Not applicable.

Information About Our Executive Officers

Set forth below are the names, ages, positions and business backgrounds of our executive officers as of the date hereof:

Name	Age	Position and Year First Elected
J. Patrick Gallagher, Jr.	71	Chairman since 2006, Chief Executive Officer since 1995, President 1990 - 2024
Thomas J. Gallagher	65	President since 2024, President of our Global Property/Casualty Brokerage Operations 2017 - 2024, Chairman of our International Brokerage Operation 2010 ‑ 2016
Patrick M. Gallagher	44	Executive Vice President, Chief Operating Officer since 2024, Corporate Vice President and President of Property/Casualty Brokerage Operation in the Americas 2021 - 2024, Chairman, Canada and Caribbean and CEO of Latin America 2019 - 2021, President, Midwest Region of Property/Casualty Brokerage Operation 2016 - 2019
Walter D. Bay	61	Corporate Vice President, General Counsel, Secretary since 2007
Mark H. Bloom	59	Corporate Vice President and Global Chief Information Officer since 2022. Global Chief Information Officer at Aegon N.V., 2016 - 2021
Joel D. Cavaness	62	Chairman, Americas Specialty (Wholesale Brokerage) since 2024, Corporate Vice President since 2000, President of our Wholesale Brokerage Operation since 1997 - 2024
Douglas K. Howell	62	Corporate Vice President, Chief Financial Officer since 2003
Scott R. Hudson	62	Corporate Vice President and President of our Risk Management Operations since 2010
Vishal Jain	62	Corporate Vice President since 2016, Chief Service Officer since 2014
Christopher E. Mead	56	Corporate Vice President, Chief Marketing Officer since 2017
Susan E. Pietrucha	57	Corporate Vice President, Chief Human Resource Officer since 2007
William F. Ziebell	61	President of our Employee Benefit and Consulting Brokerage Operations since 2017, Corporate Vice President since 2011, regional leader in our Employee Benefit and Consulting Brokerage Operations 2004 - 2016

With the exception of Mr. Bloom, we have employed each such person principally in management capacities for more than the past five years. All executive officers are appointed annually and serve at the discretion of our board of directors.

Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Our common stock is listed on the New York Stock Exchange, trading under the symbol “AJG.”

As of January 31, 2024, there were approximately 1,000 holders of record of our common stock.

(c)

Issuer Purchases of Equity Securities

The following table shows the purchases of our common stock made by or on behalf of us or any “affiliated purchaser” (as such term is defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934, as amended) of us for each fiscal month in the three-month period ended December 31, 2023:

Period		Average<br>Price Paid<br>per Share (2)			Maximum Dollar<br>Value of Shares that May<br>Yet be Purchased<br>Under the Plans<br>or Programs (3) (4)
October 1 through October 31, 2023	1,177	$	234.06	—	$	1,500
November 1 through November 30, 2023	24,020		242.81	—		1,500
December 1 through December 31, 2023	16,461		224.95	—		1,500
Total	41,658	$	235.50	—

(1) Amounts in this column include shares of our common stock purchased by the trustees of trusts established under our Deferred Equity Participation Plan (which we refer to as the DEPP), our Deferred Cash Participation Plan (which we refer to as the DCPP) and our Supplemental Savings and Thrift Plan (which we refer to as the Supplemental Plan), respectively. These plans are considered to be unfunded for purposes of federal tax law since the assets of these trusts are available to our creditors in the event of our financial insolvency. The DEPP is an unfunded, non-qualified deferred compensation plan that generally provides for awards to certain of our key executives that do not vest and/or distribute until participants reach age 62 (or the one-year anniversary of the date of grant for participants over the age of 61). Under sub‑plans of the DEPP for certain production staff, the plan generally provides for vesting and/or distributions no sooner than five years from the date of awards, although certain awards vest and/or distribute after the earlier of fifteen years or the participant reaching age 65. See Note 11 to our 2023 consolidated financial statements for more information regarding the DEPP. The DCPP is an unfunded, non-qualified deferred compensation plan for certain key employees, other than executive officers, that generally provides for vesting and/or distributions no sooner than five years from the date of awards. Under the terms of the DEPP and the DCPP, we may contribute cash to the trust and instruct the trustee to acquire a specified number of shares of our common stock on the open market or in privately negotiated transactions. For the fourth quarter of 2023, we instructed the trustee for the DEPP and the DCPP to reinvest dividends on shares of our common stock held by these trusts and to purchase our common stock using cash that we contributed to the DCPP related to 2023 awards under the DCPP. The Supplemental Plan is an unfunded, non-qualified deferred compensation plan that allows certain highly compensated employees to defer compensation, including company match amounts, on a before-tax basis or after-tax basis. Under the terms of the Supplemental Plan, all amounts credited to an employee’s account may be deemed invested, at the employee’s election, in a number of investment options that include various mutual funds, an annuity product and a fund representing our common stock. When an employee elects to have some or all of the amounts credited to the employee’s account under the Supplemental Plan deemed to be invested in the fund representing our common stock, the trustee of the trust for the Supplemental Plan purchases shares of our common stock in a number sufficient to ensure that the trust holds a number of shares of our common stock with a value equal to the amounts deemed invested in the fund representing our common stock. This is to ensure that at the time when an employee becomes entitled to a distribution under the terms of the Supplemental Plan, any amounts deemed to be invested in the fund representing our common stock are distributed in the form of shares of our common stock held by the trust. We established the trusts for the DEPP, the DCPP and the Supplemental Plan to assist us in discharging our deferred compensation obligations under these plans. All assets of these trusts, including any shares of our common stock purchased by the trustees, remain, at all times, assets of the Company, subject to the claims of our creditors in the event of our financial insolvency. The terms of the DEPP, the DCPP and the Supplemental Plan do not provide for a specified limit on the number of shares of common stock that may be purchased by the respective trustees of the trusts.

(2) The average price paid per share is calculated on a settlement basis and does not include commissions.

(3) Effective July 28, 2021, the board of directors approved a common stock repurchase plan of up to $1.5 billion of common stock. Repurchases of common stock may be effected from time to time through open market purchases, trading plans established in accordance with the U.S. Securities and Exchange Commission’s rules, accelerated stock repurchases, private transactions or other means, depending on satisfactory market conditions, applicable legal requirements and other factors. The repurchase plan has no expiration date and we are under no commitment or obligation to repurchase any particular amount of our common stock under the plan. At our discretion, we may suspend the repurchase plan at any time.

(4) Dollar values stated in millions.

Item 6. [Reserved].

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Introduction

The following discussion and analysis should be read in conjunction with our consolidated financial statements and the related notes included in Item 8 of this annual report. In addition, please see “Information Regarding Non-GAAP Measures and Other” beginning on page 38 for a reconciliation of the non-GAAP measures for adjusted total revenues, organic commission, fee and supplemental revenues and adjusted EBITDAC to the comparable GAAP measures, as well as other important information regarding these measures.

We are engaged in providing insurance brokerage, reinsurance brokerage, consulting services, and third-party property/casualty claims settlement and administration services to entities and individuals around the world. We believe that one of our major strengths is our ability to deliver comprehensively structured insurance and risk management services to our clients. Our brokers, agents and administrators act as intermediaries between underwriting enterprises and our clients and we do not assume net underwriting risks. We are headquartered in Rolling Meadows, Illinois, and provide brokerage, risk management and consulting services in approximately 130 countries around the world through our owned operations and a network of correspondent brokers and consultants. In 2023, we expanded, and expect to continue to expand, our international operations through both acquisitions and organic growth. We generate approximately 64% of our revenues for the combined brokerage and risk management segments domestically, with the remaining 36% generated internationally, primarily in the Australia, Canada, New Zealand and the U.K. (based on 2023 revenues). We have three reportable segments: brokerage, risk management and corporate. Brokerage and risk management contributed approximately 86% and 14%, respectively, to 2023 revenues. The corporate segment generated revenues from our clean energy investments until 2022, during which we ran-off existing chemical supplies as part of the wind down of such investments’ operations, after our ability to generate additional tax credits from qualified refined coal pursuant to IRC Section 45 ended in December 2021. Our major sources of operating revenues are commissions, fees and supplemental and contingent revenues from brokerage operations and fees from risk management operations. Investment income is generated from invested cash and fiduciary funds, clean energy investments (prior to 2022), and revenue from premium financing.

Prior Year Discussion of Results and Comparisons

For information on fiscal 2022 results and similar comparisons, see "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" of our Form 10-K for the fiscal year ended December 31, 2022.

Summary of Financial Results - Year Ended December 31,

See the reconciliations of non-GAAP measures on page 36.

	Year 2023						Year 2022						Change
	Reported<br>GAAP			Adjusted<br>Non-GAAP			Reported<br>GAAP			Adjusted<br>Non-GAAP			Reported<br>GAAP			Adjusted<br>Non-GAAP
	(In millions, except per share data)
Brokerage Segment
Revenues	$	8,637.2		$	8,627.6		$	7,303.8		$	7,266.6			18	%		19	%
Organic revenues				$	7,753.9					$	7,122.6						8.9	%
Net earnings	$	1,169.4					$	1,201.8						(3	%)
Net earnings margin		13.5	%					16.5	%				-292 bpts
Adjusted EBITDAC				$	2,962.6					$	2,472.5						20	%
Adjusted EBITDAC margin					34.3	%					34.0	%				+31 bpts
Diluted net earnings per share	$	5.30		$	9.39		$	5.58		$	8.00			(5	%)		17	%
Risk Management Segment
Revenues before reimbursements	$	1,287.6		$	1,287.2		$	1,092.6		$	1,086.8			18	%		18	%
Organic revenues				$	1,254.2					$	1,082.8						15.8	%
Net earnings	$	154.0					$	115.8						33	%
Net earnings margin<br> (before reimbursements)		12.0	%					10.6	%				+136 bpts
Adjusted EBITDAC				$	257.9					$	200.6						29	%
Adjusted EBITDAC margin<br> (before reimbursements)					20.0	%					18.5	%				+158 bpts
Diluted net earnings per share	$	0.70		$	0.74		$	0.54		$	0.56			30	%		32	%
Corporate Segment
Diluted net loss per share	$	(1.58	)	$	(1.37	)	$	(0.93	)	$	(1.02	)
Total Company
Diluted net earnings per share	$	4.42		$	8.76		$	5.19		$	7.54			(15	%)		16	%
Total Brokerage and Risk<br> Management Segment
Diluted net earnings per share	$	6.00		$	10.13		$	6.12		$	8.56			(2	%)		18	%

In our corporate segment, net after-tax (loss) earnings from our clean energy investments was $(11.5) million and $(9.2) million in 2023 and 2022, respectively. At this time, we anticipate our clean energy investments will produce after-tax losses in 2024.

The following provides information that management believes is helpful when comparing revenues before reimbursements, net earnings, EBITDAC and diluted net earnings per share for 2023 and 2022. In addition, these tables provide reconciliations to the most comparable GAAP measures for adjusted revenues, adjusted EBITDAC and adjusted diluted net earnings per share. Reconciliations of EBITDAC for the brokerage and risk management segments are provided on pages 42 and 48 of this filing.

Year Ended December 31 Reported GAAP to Adjusted Non-GAAP Reconciliation:
(In millions, except per share data)
	Revenues Before<br>Reimbursements						Net Earnings<br>(Loss)						EBITDAC						Diluted Net Earnings (Loss)<br>Per Share
Segment	2023			2022			2023			2022			2023			2022			2023			2022			Chg
Brokerage, as reported	$	8,637.2		$	7,303.8		$	1,169.4		$	1,201.8		$	2,595.8		$	2,239.2		$	5.30		$	5.58			-5	%
Net gains on divestitures		(9.6	)		(12.1	)		(7.2	)		(9.5	)		(9.6	)		(12.1	)		(0.03	)		(0.05	)
Acquisition integration		—			—			184.5			132.7			243.7			167.9			0.84			0.62
Workforce and lease termination		—			—			48.0			40.2			63.4			48.9			0.22			0.19
Acquisition related adjustments		—			—			278.8			56.0			69.3			46.8			1.27			0.26
Amortization of intangible assets		—			—			392.3			342.3			—			—			1.79			1.59
Effective income tax rate impact		—			—			—			(26.0	)		—			—			—			(0.13	)
Levelized foreign currency translation		—			(25.1	)		—			(13.8	)		—			(18.2	)		—			(0.06	)
Brokerage, as adjusted *		8,627.6			7,266.6			2,065.8			1,723.7			2,962.6			2,472.5			9.39			8.00			17	%
Risk Management, as reported		1,287.6			1,092.6			154.0			115.8			253.4			193.8		$	0.70		$	0.54			30	%
Net gains on divestures		(0.4	)		(0.9	)		(0.3	)		(0.6	)		(0.4	)		(0.9	)		—			—
Acquisition integration		—			—			0.7			1.4			1.0			1.8			—			0.01
Workforce and lease termination		—			—			2.5			4.8			3.4			6.4			0.01			0.02
Acquisition related adjustments		—			—			0.4			(5.8	)		0.5			0.4			—			(0.03	)
Amortization of intangibles assets		—			—			5.6			4.6			—			—			0.03			0.02
Levelized foreign currency translation		—			(4.9	)		—			(0.7	)		—			(0.9	)		—			—
Risk Management, as adjusted *		1,287.2			1,086.8			162.9			119.5			257.9			200.6			0.74			0.56			32	%
Corporate, as reported		1.7			23.7			(357.4	)		(201.6	)		(293.6	)		(166.5	)	$	(1.58	)	$	(0.93	)
Corporate related adjustments
(see page 55)		—			—			54.8			(19.5	)		82.6			28.4			0.21			(0.09	)
Corporate, as adjusted *		1.7			23.7			(302.6	)		(221.1	)		(211.0	)		(138.1	)		(1.37	)		(1.02	)
Total Company, as reported	$	9,926.5		$	8,420.1		$	966.0		$	1,116.0		$	2,555.6		$	2,266.5		$	4.42		$	5.19			-15	%
Total Company, as adjusted *	$	9,916.5		$	8,377.1		$	1,926.1		$	1,622.1		$	3,009.5		$	2,535.0		$	8.76		$	7.54			16	%
Total Brokerage and Risk
Management, as reported	$	9,924.8		$	8,396.4		$	1,323.4		$	1,317.6		$	2,849.2		$	2,433.0		$	6.00		$	6.12			-2	%
Total Brokerage and Risk
Management, as adjusted *	$	9,914.8		$	8,353.4		$	2,228.7		$	1,843.2		$	3,220.5		$	2,673.1		$	10.13		$	8.56			18	%

* For the year ended December 31, 2023, the pretax impact of the brokerage segment adjustments totals $1,192.0 million, mostly due to non-cash period expenses related to intangible amortization and acquisition earnout payable adjustments, with a corresponding adjustment to the provision for income taxes of $295.6 million relating to these items. For the year ended December 31, 2023, the pretax impact of the risk management segment adjustments totals $12.2 million, with a corresponding adjustment to the provision for income taxes of $3.3 million relating to these items. For the year ended December 31, 2023, the pretax impact of the corporate segment adjustments totals $82.6 million, with a corresponding adjustment to the benefit for income taxes of $27.8 million relating to these items and other tax items noted on page 54. For the corporate segment, the clean energy related adjustments are described on page 54.

Reconciliation of Non-GAAP Measures - Pre-tax Earnings and Diluted Net Earnings per Share

(In millions except share and per share data)
	Earnings<br>(Loss)<br>Before<br>Income<br>Taxes			Provision<br>(Benefit)<br>for<br>Income<br>Taxes			Net<br>Earnings<br>(Loss)			Net Earnings (Loss)<br>Attributable to<br>Noncontrolling<br>Interests			Net Earnings<br>(Loss)<br>Attributable to<br>Controlling<br>Interests			Diluted Net<br>Earnings<br>(Loss) per<br>Share
Year Ended Dec 31, 2023
Brokerage, as reported	$	1,571.0		$	401.6		$	1,169.4		$	6.3		$	1,163.1		$	5.30
Net gains on divestitures		(9.6	)		(2.4	)		(7.2	)		—			(7.2	)		(0.03	)
Acquisition integration		243.7			59.2			184.5			—			184.5			0.84
Workforce and lease termination		63.8			15.8			48.0			—			48.0			0.22
Acquisition related adjustments		370.5			91.7			278.8			—			278.8			1.27
Amortization of intangible assets		523.6			131.3			392.3			—			392.3			1.79
Brokerage, as adjusted	$	2,763.0		$	697.2		$	2,065.8		$	6.3		$	2,059.5		$	9.39
Risk Management, as reported	$	209.3		$	55.3		$	154.0		$	—		$	154.0		$	0.70
Net gains on divestitures		(0.4	)		(0.1	)		(0.3	)		—			(0.3	)		—
Acquisition integration		1.0			0.3			0.7			—			0.7			—
Workforce and lease termination		3.4			0.9			2.5			—			2.5			0.01
Acquisition related adjustments		0.5			0.1			0.4			—			0.4			—
Amortization of intangible assets		7.7			2.1			5.6			—			5.6			0.03
Risk Management, as adjusted	$	221.5		$	58.6		$	162.9		$	—		$	162.9		$	0.74
Corporate, as reported	$	(595.2	)	$	(237.8	)	$	(357.4	)	$	(9.8	)	$	(347.6	)	$	(1.58	)
Transaction-related costs		22.6			4.9			17.7			—			17.7			0.08
Legal and tax related		48.0			21.8			26.2			—			26.2			0.12
Clean energy related		12.0			1.1			10.9			7.6			3.3			0.01
Corporate, as adjusted	$	(512.6	)	$	(210.0	)	$	(302.6	)	$	(2.2	)	$	(300.4	)	$	(1.37	)
Year Ended Dec 31, 2022
Brokerage, as reported	$	1,596.5		$	394.7		$	1,201.8		$	4.4		$	1,197.4		$	5.58
Net gains on divestitures		(12.1	)		(2.6	)		(9.5	)		—			(9.5	)		(0.05	)
Acquisition integration		167.9			35.2			132.7			—			132.7			0.62
Workforce and lease termination		51.4			11.2			40.2			—			40.2			0.19
Acquisition related adjustments		77.0			21.0			56.0			—			56.0			0.26
Amortization of intangible assets		448.7			106.4			342.3			—			342.3			1.59
Effective income tax rate impact		—			26.0			(26.0	)		—			(26.0	)		(0.13	)
Levelized foreign currency translation		(19.1	)		(5.3	)		(13.8	)		—			(13.8	)		(0.06	)
Brokerage, as adjusted	$	2,310.3		$	586.6		$	1,723.7		$	4.4		$	1,719.3		$	8.00
Risk Management, as reported	$	157.2		$	41.4		$	115.8		$	—		$	115.8		$	0.54
Net gains on divestitures		(0.9	)		(0.3	)		(0.6	)		—			(0.6	)		—
Acquisition integration		1.8			0.4			1.4			—			1.4			0.01
Workforce and lease termination		6.5			1.7			4.8			—			4.8			0.02
Acquisition related adjustments		(7.8	)		(2.0	)		(5.8	)		—			(5.8	)		(0.03	)
Amortization of intangible assets		6.2			1.6			4.6			—			4.6			0.02
Levelized foreign currency translation		(0.6	)		0.1			(0.7	)		—			(0.7	)		—
Risk Management, as adjusted	$	162.4		$	42.9		$	119.5		$	—		$	119.5		$	0.56
Corporate, as reported	$	(426.7	)	$	(225.1	)	$	(201.6	)	$	(2.6	)	$	(199.0	)	$	(0.93	)
Transaction-related costs		33.4			2.7			30.7			—			30.7			0.14
Income tax related		(5.0	)		45.2			(50.2	)		—			(50.2	)		(0.23	)
Corporate, as adjusted	$	(398.3	)	$	(177.2	)	$	(221.1	)	$	(2.6	)	$	(218.5	)	$	(1.02	)

Acquisition of My Plan Manager, Cadence Insurance, Eastern Insurance and Buck

On December 6, 2023, we acquired all of the issued and outstanding shares of My Plan Manager. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire My Plan Manager. We funded the transaction using free cash flow and borrowings under our Credit Agreement (see Financing Cash Flow section below). The acquired My Plan Manager is the leading provider of plan management services to participants in Australia’s National Disability Insurance Scheme.

On November 30, 2023, we acquired all of the issued and outstanding shares of Cadence Insurance. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Cadence Insurance. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Cadence Insurance business offers a full suite of commercial property/casualty, employee benefits and personal lines products to clients from 34 offices spanning nine states across the Southeast, including Texas.

On October 31, 2023, we acquired the net assets of Eastern Insurance. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Eastern Insurance. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Eastern Insurance business offers comprehensive commercial property/casualty and personal lines products as well as employee benefits consulting to clients throughout the Northeastern U.S.

On April 3, 2023 we acquired the partnership interests of Buck. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Buck. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Buck business is a leading provider of retirement, human resource and employee benefits consulting and administration services operating for more than 100 years with a diverse client base by both size and industry. Immediately prior to closing, Buck had over 2,300 employees, including more than 220 credentialed actuaries, primarily serving customers throughout the U.S., Canada and the U.K.

Insurance Market Overview

Fluctuations in premiums charged by property/casualty underwriting enterprises have a direct and potentially material impact on the insurance brokerage industry. Commission revenues are generally based on a percentage of the premiums paid by insureds and normally follow premium levels. Insurance premiums are cyclical in nature and may vary widely based on market conditions. Various factors, including competition for market share among underwriting enterprises, increased underwriting capacity and improved economies of scale following consolidations, can result in flat or reduced property/casualty premium rates (a “soft” market). A soft market tends to put downward pressure on commission revenues. Various countervailing factors, such as greater than anticipated loss experience, unexpected loss exposure and capital shortages, can result in increasing property/casualty premium rates (a “hard” market). A hard market tends to favorably impact commission revenues. Hard and soft markets may be broad-based or more narrowly focused across individual product lines or geographic areas. As markets harden, buyers of insurance (such as our brokerage clients), have historically tried to mitigate premium increases and the higher commissions these premiums generate, including by raising their deductibles and/or reducing the overall amount of insurance coverage they purchase. As the market softens, or costs decrease, these trends have historically reversed. During a hard market, buyers may switch to negotiated fee in lieu of commission arrangements to compensate us for placing their risks, or may consider the alternative insurance market, which includes self-insurance, captives, rent-a-captives, risk retention groups and capital market solutions to transfer risk. Our brokerage units are very active in these markets as well. While increased use by insureds of these alternative markets historically has reduced commission revenue to us, such trends generally have been accompanied by new sales and renewal increases in the areas of risk management, claims management, captive insurance and self-insurance services and related growth in fee revenue. Inflation tends to increase the levels of insured values and risk exposures, resulting in higher overall premiums and higher commissions. However, the impact of hard and soft market fluctuations has historically had a greater impact on changes in premium rates, and therefore on our revenues, than inflationary pressures.

We use the Council of Insurance Agents & Brokers (which we refer to as the CIAB) insurance pricing quarterly survey as an indicator of the insurance rate environment. The CIAB represents the leading domestic and international insurance brokers, who write approximately 85% of the commercial property/casualty premiums in the U.S. The fourth quarter 2023 survey had not been published as of the filing date of this report. The first three 2023 quarterly surveys indicated that U.S. commercial property/casualty rates increased by 8.8%, 8.9%, and 8.1% on average, for the first, second and third quarters of 2023, respectively. We expect a similar trend to be noted when the CIAB fourth quarter 2023 survey report is issued, which would indicate overall continued price firming and hardening in most lines of business.

We believe increases in property/casualty rates will continue throughout 2024 due to rising loss costs, a hard reinsurance market, increased frequency of catastrophe losses and social inflation. If loss trends deteriorate over the coming quarters, including due to the impact of natural catastrophes, it could lead to a more difficult rate and conditions environment in certain lines. The combination of increasing insurable values (due in large part to inflation, including wage inflation), a tight labor market and lower unemployment is likely contributing to increases in client insured exposures. Additionally, we expect that our history of strong new business generation, solid retentions and enhanced value-added services for our carrier partners should all result in further organic growth opportunities around the world. Overall, we believe that in a positive rate environment with increasing exposures, our professionals can demonstrate their expertise and high-quality, value-added capabilities by strengthening our clients’ insurance portfolios and delivering insurance and risk management solutions within our clients’ budget. Based on our experience, there is currently adequate capacity in the insurance and reinsurance market for most lines of coverage.

Clean energy investments - We have investments in limited liability companies that own or have owned 29 clean coal production plants developed by us and six clean coal production plants we purchased from a third party. All 35 plants produced refined coal using propriety technologies owned by Chem-Mod. We believe that the production and sale of refined coal at these plants prior to 2022 was qualified to receive refined coal tax credits under IRC Section 45. The plants which were placed in service prior to December 31, 2009 (which we refer to as the 2009 Era Plants) received tax credits through 2019 and the 21 plants which were placed in service prior to December 31, 2011 (which we refer to as the 2011 Era Plants) received tax credits through 2021. All twenty-one of the 2011 Era Plants were under long‑term production contracts with several utilities. Those agreements ended December 31, 2021 due to the expiration of the IRC Section 45 program.

We also own a 46.5% controlling interest in Chem-Mod, which prior to 2022 marketed The Chem‑Mod™ Solution proprietary technologies principally to refined fuel plants that sell refined fuel to coal-fired power plants owned by utility companies, including those plants in which we hold interests. Chem-Mod has not generated after-tax earnings since 2021.

Business Combinations and Dispositions

See Note 3 to our 2023 consolidated financial statements for a discussion of our 2023 business combinations.

Results of Operations

Information Regarding Non-GAAP Measures and Other

In the discussion and analysis of our results of operations that follows, in addition to reporting financial results in accordance with GAAP, we provide information regarding EBITDAC, EBITDAC margin, adjusted EBITDAC, adjusted EBITDAC margin, diluted net earnings per share, as adjusted (adjusted EPS), adjusted revenue, adjusted compensation and operating expenses, adjusted compensation expense ratio, adjusted operating expense ratio and organic revenue. These measures are not in accordance with, or an alternative to, the GAAP information provided in this report. We believe that these presentations provide useful information to management, analysts and investors regarding financial and business trends relating to our results of operations and financial condition or because they provide investors with measures that our chief operating decision maker uses when reviewing the company’s performance. See further below for definitions and additional reasons each of these measures is useful to investors. Our industry peers may provide similar supplemental non-GAAP information with respect to one or more of these measures, although they may not use the same or comparable terminology and may not make identical adjustments. For example, our organic revenue is calculated differently than some of our industry peers. The non-GAAP information we provide should be used in addition to, but not as a substitute for, the GAAP information provided. We make determinations regarding certain elements of executive officer incentive compensation, performance share awards and annual cash incentive awards, partly on the basis of measures related to adjusted EBITDAC.

Adjusted Non-GAAP presentation - We believe that the adjusted non-GAAP presentation of our 2023 and 2022 information, presented on the following pages, provides stockholders and other interested persons with useful information regarding certain financial metrics that may assist such persons in analyzing our operating results as they develop a future earnings outlook for us. The after-tax amounts related to the adjustments were computed using the normalized effective tax rate for each respective period.

• Adjusted measures - We define these measures as revenues (for the brokerage segment), revenues before reimbursements (for the risk management segment), net earnings, compensation expense and operating expense, respectively, each adjusted to exclude the following, as applicable:

o Net gains on divestitures, which are primarily net proceeds received related to sales of books of business and other divestiture transactions, such as the disposal of a business through sale or closure.

o Acquisition integration costs, which include costs related to certain large acquisitions (including Willis Re, the acquisition of Buck and the acquisitions of Cadence Insurance, Eastern Insurance and My Plan Manager), outside the scope of our usual tuck-in strategy, not expected to occur on an ongoing basis in the future once we fully assimilate the applicable acquisition. These costs are typically associated with redundant workforce, compensation expense related to amortization of certain retention bonus arrangements, extra lease space, duplicate services and external costs incurred to assimilate the acquisition into our IT related systems.

o Transaction-related costs, which primarily are associated with the acquisition of Willis Re (primarily related to deferred closings in certain jurisdictions in 2022), the acquisition of Buck and the acquisitions of Cadence Insurance, Eastern Insurance and My Plan Manager. These include costs related to regulatory filings, legal and accounting services, insurance and incentive compensation.

o Workforce related charges, which primarily include severance costs (either accrued or paid) related to employee terminations and other costs associated with redundant workforce.

o Lease termination related charges, which primarily include costs related to terminations of real estate leases and abandonment of leased space.

o Acquisition related adjustments, which include the change in estimated acquisition earnout payables adjustments and acquisition related compensation charges.

o Amortization of intangible assets which reflects the amortization of customer/expiration lists, non-compete agreements, trade names and other intangible assets acquired through our merger and acquisition strategy, the impact to amortization expense of acquisition valuation adjustments to these assets as well as non-cash impairment charges.

o The impact of foreign currency translation, as applicable. The amounts excluded with respect to foreign currency translation are calculated by applying current year foreign exchange rates to the same period in the prior year.

o Effective income tax rate impact, which levelizes the prior year for the change in current year tax rates.

o Clean energy related, which represents the resolution of various partnership matters related to our clean energy investments.

o Legal and tax related, which represents the impact of (a) adjustments in fourth quarter 2023 related to costs associated with legal and tax matters as well as the impact of tax items associated with 2022 tax returns filed in October 2023, (b) adjustments in second quarter of 2023 related to additional U.K. income tax expense related to the non‑deductibility of acquisition-related adjustments made in the quarter and costs associated with legal and tax matters, (c) adjustments in second quarter 2022 related to a one-time U.S. state tax benefit that resulted from legal entity restructuring and a favorable U.K. tax impact related to earnout liability adjustments, and (d) adjustments in first quarter 2022 related to a one-time benefit related to the revaluation of certain deferred income tax assets associated with increasing our U.S. state effective income tax rate.

• Adjusted ratios - Adjusted compensation expense and adjusted operating expense, respectively, each divided by adjusted revenues.

Non-GAAP Earnings Measures

We believe that the presentation of EBITDAC, EBITDAC margin, adjusted EBITDAC, adjusted EBITDAC margin, adjusted EPS and adjusted net earnings for the brokerage and risk management segment, each as defined below, provides a meaningful representation of our operating performance. Adjusted EPS is a performance measure and should not be used as a measure of our liquidity. We also consider EBITDAC and EBITDAC margin as ways to measure financial performance on an ongoing basis. In addition, adjusted EBITDAC, adjusted EBITDAC margin and adjusted EPS for the brokerage and risk management segments are presented to improve the comparability of our results between periods by eliminating the impact of the items that have a high degree of variability.

• EBITDAC and EBITDAC Margin - EBITDAC is net earnings before interest, income taxes, depreciation, amortization and the change in estimated acquisition earnout payables and EBITDAC margin is EBITDAC divided by total revenues (for the brokerage segment) and revenues before reimbursements (for the risk management segment). These measures for the brokerage and risk management segments provide a meaningful representation of our operating performance for the overall business and provide a meaningful way to measure our financial performance on an ongoing basis.

• Adjusted EBITDAC and Adjusted EBITDAC Margin - Adjusted EBITDAC is EBITDAC adjusted to exclude net gains on divestitures, acquisition integration costs, workforce related charges, lease termination related charges, acquisition related adjustments, transaction related costs, legal and tax related costs, and the period-over-period impact of foreign currency translation, as applicable and Adjusted EBITDAC margin is Adjusted EBITDAC divided by total adjusted revenues (defined above). These measures for the brokerage and risk management segments provide a meaningful representation of our operating performance, and are also presented to improve the comparability of our results between periods by eliminating the impact of the items that have a high degree of variability.

• Adjusted EPS and Adjusted Net Earnings - Adjusted net earnings have been adjusted to exclude the after-tax impact of net gains on divestitures, acquisition integration costs, the impact of foreign currency translation, workforce related charges, lease termination related charges, acquisition related adjustments, transaction related costs, amortization of intangible assets, legal and tax related costs and effective income tax rate impact, as applicable. Adjusted EPS is Adjusted Net Earnings divided by diluted weighted average shares outstanding. This measure provides a meaningful representation of our operating performance (and as such should not be used as a measure of our liquidity), and for the overall business is also presented to improve the comparability of our results between periods by eliminating the impact of the items that have a high degree of variability.

Organic Revenues (a non-GAAP measure) - For the brokerage segment, organic change in base commission and fee revenues, supplemental revenues and contingent revenues excludes the first twelve months of such revenues generated from acquisitions and such revenues related to divested operations in each year presented. These revenues are excluded from organic revenues in order to help interested persons analyze the revenue growth associated with the operations that were a part of our business in both the current and prior year. In addition, organic change in base commission and fee revenues, supplemental revenues and contingent revenues exclude the period-over-period impact of foreign currency translation to improve the comparability of our results between periods. For the risk management segment, organic change in fee revenues excludes the first twelve months of such revenues generated from acquisitions and such revenues related to divested operations in each year presented. In addition, change in organic growth in fee revenues excludes the period-over-period impact of foreign currency translation to improve the comparability of our results between periods.

These revenue items are excluded from organic revenues in order to determine a comparable, but non-GAAP, measurement of revenue growth that is associated with the revenue sources that are expected to continue in the current year and beyond as well as eliminating the impact of the items that have a high degree of variability. We have historically viewed organic revenue growth as an important indicator when assessing and evaluating the performance of our brokerage and risk management segments. We also believe that using this non-GAAP measure allows readers of our financial statements to measure, analyze and compare the growth from our brokerage and risk management segments in a meaningful and consistent manner.

Reconciliation of Non-GAAP Information Presented to GAAP Measures - This report includes tabular reconciliations to the most comparable GAAP measures, as follows: for EBITDAC (on pages 42 and 48), for adjusted revenues, adjusted EBITDAC and adjusted diluted net earnings per share (on page 35), for organic revenue measures (on pages 43 and 48), respectively, for the brokerage and risk management segments, for adjusted compensation and operating expenses and adjusted EBITDAC margin (on page 45), respectively, for the brokerage segment and (on page 49) for the risk management segment.

Brokerage

The brokerage segment accounted for 86% of our revenue in 2023. Our brokerage segment is primarily comprised of retail, wholesale and Gallagher Re. Our brokerage segment generates revenues by:

(i) Identifying, negotiating and placing all forms of insurance or coverage, as well as providing data analytics, risk-shifting, risk-sharing and risk-mitigation consulting services, principally related to property/casualty, life, health, welfare and disability insurance. We also provide these services through, or in conjunction with, other unrelated agents and brokers, consultants and management advisors;

(ii) Identifying, negotiating and placing all forms of reinsurance coverage, as well as providing capital markets services, including acting as underwriter, with respect to insurance linked securities, weather derivatives, capital raising and selected merger and acquisition advisory activities;

(iii) Acting as an agent or broker for multiple underwriting enterprises by providing services such as sales, marketing, selecting, negotiating, underwriting, servicing and placing insurance coverage on their behalf;

(iv) Providing consulting services related to health and welfare benefits, voluntary benefits, executive benefits, compensation, retirement planning, institutional investment and fiduciary, actuarial, compliance, private insurance exchange, human resource technology, communications and benefits administration; and

(v) Providing management and administrative services to captives, pools, risk-retention groups, healthcare exchanges, small underwriting enterprises, such as accounting, claims and loss processing assistance, feasibility studies, actuarial studies, data analytics and other administrative services.

The primary source of revenues for our brokerage services is commissions from underwriting enterprises, based on a percentage of premiums paid by our clients, or fees received from clients based on an agreed level of service usually in lieu of commissions. Commissions are fixed at the contract effective date and generally are based on a percentage of premiums for insurance coverage or employee headcount for employer sponsored benefit plans. Commissions depend upon a large number of factors, including the type of risk being placed, the particular underwriting enterprise’s demand, the expected loss experience of the particular risk of coverage, and historical benchmarks surrounding the level of effort necessary for us to place and service the insurance contract. Rather than being tied to the amount of premiums, fees are most often based on an expected level of effort to provide our services. In addition, under certain circumstances, both retail brokerage and wholesale brokerage services receive supplemental and contingent revenues. Supplemental revenue is revenue paid by an underwriting enterprise that is above the base commission paid, is determined by the underwriting enterprise and is established annually in advance of the contractual period based on historical performance criteria. Contingent revenue is revenue paid by an underwriting enterprise based on the overall profit and/or volume of the business placed with that underwriting enterprise during a particular calendar year and is determined after the contractual period.

Financial information relating to our brokerage segment results for 2023 and 2022 (in millions, except per share, percentages and workforce data):

Statement of Earnings	2023			2022			Change
Commissions	$	5,865.0		$	5,187.4		$	677.6
Fees		1,885.0			1,476.9			408.1
Supplemental revenues		314.2			284.7			29.5
Contingent revenues		235.3			207.3			28.0
Interest income, premium finance revenues and other income		337.7			147.5			190.2
Total revenues		8,637.2			7,303.8			1,333.4
Compensation		4,769.1			4,024.7			744.4
Operating		1,272.3			1,039.9			232.4
Depreciation		124.4			103.6			20.8
Amortization		523.6			448.7			74.9
Change in estimated acquisition earnout<br> payables		376.8			90.4			286.4
Total expenses		7,066.2			5,707.3			1,358.9
Earnings before income taxes		1,571.0			1,596.5			(25.5	)
Provision for income taxes		401.6			394.7			6.9
Net earnings		1,169.4			1,201.8			(32.4	)
Net earnings attributable to noncontrolling<br> interests		6.3			4.4			1.9
Net earnings attributable to controlling interests	$	1,163.1		$	1,197.4		$	(34.3	)
Diluted net earnings per share	$	5.30		$	5.58		$	(0.28	)
Other Information
Change in diluted net earnings per share		(5	)%		15	%
Growth in revenues		18	%		22	%
Organic change in commissions and fees		9	%		9	%
Compensation expense ratio		55	%		55	%
Operating expense ratio		15	%		14	%
Effective income tax rate		26	%		25	%
Workforce at end of period (includes<br> acquisitions)		39,337			32,679
Identifiable assets at December 31	$	47,446.1		$	34,675.0

The following provides information that management believes is helpful when comparing EBITDAC and adjusted EBITDAC for 2023 and 2022 (in millions):

	2023			2022			Change
Net earnings, as reported	$	1,169.4		$	1,201.8			-2.7	%
Provision for income taxes		401.6			394.7
Depreciation		124.4			103.6
Amortization		523.6			448.7
Change in estimated acquisition earnout<br> payables		376.8			90.4
EBITDAC		2,595.8			2,239.2			15.9	%
Net gains on divestitures		(9.6	)		(12.1	)
Acquisition integration		243.7			167.9
Workforce and lease termination related charges		63.4			48.9
Acquisition related adjustments		69.3			46.8
Levelized foreign currency translation		—			(18.2	)
EBITDAC, as adjusted	$	2,962.6		$	2,472.5			19.8	%
Net earnings margin, as reported		13.5	%		16.5	%	-292 bpts
EBITDAC margin, as adjusted		34.3	%		34.0	%	+31 bpts
Reported revenues	$	8,637.2		$	7,303.8
Adjusted revenues - see page 36	$	8,627.6		$	7,266.6

Commissions and fees - The aggregate increase in base commissions and fees for 2023 was due to revenues associated with acquisitions that were made during 2023 and 2022 ($531.8 million) and organic revenue growth. Commission revenues increased 13% and fee revenues increased 28% in 2023 compared to 2022, respectively. The organic change in base commission and fee revenues was 9% in 2023 and 2022.

In our property/casualty brokerage operations, during the twelve-month period ended December 31, 2023, we saw continued strong customer retention and new business generation and increasing renewal premiums (premium rates and exposures). We believe these favorable trends should continue in 2024; however, if economic conditions worsen or premium rate increases slow, we could see our revenue growth soften.

Items excluded from organic revenue computations yet impacting revenue comparisons for 2023 and 2022 include the following (in millions):

	Year Ended December 31,
	2023			2022			Change
Base Commissions and Fees
Commission and fees, as reported	$	7,750.0		$	6,664.3			16.3	%
Less commission and fee revenues from acquisitions		(531.8	)		—
Less divested operations		—			(10.5	)
Levelized foreign currency translation		—			(21.8	)
Organic base commission and fees	$	7,218.2		$	6,632.0			8.8	%
Supplemental revenues
Supplemental revenues, as reported	$	314.2		$	284.7			10.4	%
Less supplemental revenues from acquisitions		(4.9	)		—
Levelized foreign currency translation		—			(0.4	)
Organic supplemental revenues	$	309.3		$	284.3			8.8	%
Contingent revenues
Contingent revenues, as reported	$	235.3		$	207.3			13.5	%
Less contingent revenues from acquisitions		(8.9	)		—
Levelized foreign currency translation		—			(1.0	)
Organic contingent revenues	$	226.4		$	206.3			9.7	%
Total reported commissions, fees, supplemental<br> revenues and contingent revenues	$	8,299.5		$	7,156.3			16.0	%
Less commissions, fees, supplemental revenues <br> and contingent revenues from acquisitions		(545.6	)		—
Less divested operations		—			(10.5	)
Levelized foreign currency translation		—			(23.2	)
Total organic commissions, fees supplemental<br> revenues and contingent revenues	$	7,753.9		$	7,122.6			8.9	%
Acquisition Activity	2023		2022
---	---	---	---	---
Number of acquisitions closed		50		36
Estimated annualized revenues acquired (in millions)	$	826.0	$	244.0

For 2023 and 2022, we issued 1,612,000 and 726,000, shares, respectively, of our common stock at the request of sellers and/or in connection with tax-free exchange acquisitions.

On April 3, 2023, we acquired the partnership interests of Buck. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Buck. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Buck business is a leading provider of retirement, human resources and employee benefits consulting and administration services operating for more than 100 years and has a diverse client base by both size and industry. Immediately prior to closing, Buck had over 2,300 employees, including more than 220 credentialed actuaries, primarily serving customers throughout the Canada, the U.K. and the U.S.

On November 2, 2023, we closed and funded an offering of $1,000.0 million of unsecured senior notes in two tranches. The $400.0 million aggregate principal amount of 6.50% Senior Notes are due 2034 (which we refer to as the 2034 Notes) and $600.0 million aggregate principal amount of 6.75% Senior Notes are due 2054 (which we refer to as the 2054 Notes). The weighted average interest rate is 5.97% per annum after giving effect to underwriting costs and a net hedge gain. During 2021 through 2023, we entered into a pre-issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $128.0 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions and earnout payments related to acquisitions and general corporate purposes.

On March 2, 2023, we closed and funded an offering of $950.0 million of unsecured senior notes in two tranches. The $350.0 million aggregate principal amount of 5.50% Senior Notes are due 2033 (which we refer to as the 2033 Notes) and $600.0 million aggregate principal amount of 5.75% Senior Notes are due 2053 (which we refer to as the 2053 Notes). The weighted average interest rate is 5.05% per annum after giving effect to underwriting costs and a net hedge gain. During 2019 through 2022, we entered into a pre‑issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $112.7 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions and earnout payments related to acquisitions and general corporate purposes.

Supplemental and contingent revenues - Reported supplemental and contingent revenues recognized in 2023 and 2022 by quarter are as follows (in millions):

	Q1		Q2		Q3		Q4		Full Year
2023
Reported supplemental revenues	$	81.6	$	71.2	$	70.8	$	90.6	$	314.2
Reported contingent revenues		71.8		54.2		53.9		55.4		235.3
Reported supplemental and contingent revenues	$	153.4	$	125.4	$	124.7	$	146.0	$	549.5
2022
Reported supplemental revenues	$	74.3	$	65.7	$	64.7	$	80.0	$	284.7
Reported contingent revenues		71.6		43.1		52.4		40.2		207.3
Reported supplemental and contingent revenues	$	145.9	$	108.8	$	117.1	$	120.2	$	492.0

Interest income, premium finance revenues and other income - This primarily represents interest income earned on cash, cash equivalents and fiduciary cash and revenues from premium financing, income from equity investments and net gains related to divestitures and sales of books of business.

Interest income, premium finance revenues and other income in 2023 increased compared to 2022 primarily due to increases in interest income earned on our own and fiduciary funds.

The following table provides a reconciliation of brokerage segment interest income, premium finance revenues and other income, as reported in our consolidated financial statements to interest income earned on cash, cash equivalents and fiduciary cash (in millions):

	2023			2022
Interest income, premium finance revenues and other income	$	337.7		$	147.5
Less:
Net gains on divestitures		(9.6	)		(12.1	)
Premium financing revenues and net earnings from equity interests		(106.5	)		(84.1	)
Interest income from cash, cash equivalents and fiduciary cash	$	221.6		$	51.3

Compensation expense - The following provides non-GAAP information that management believes is helpful when comparing 2023 and 2022 compensation expense (in millions):

	2023			2022
Compensation expense, as reported	$	4,769.1		$	4,024.7
Acquisition integration		(146.6	)		(107.4	)
Workforce related charges		(56.0	)		(36.9	)
Acquisition related adjustments		(69.3	)		(46.8	)
Levelized foreign currency translation		—			(10.6	)
Compensation expense, as adjusted	$	4,497.2		$	3,823.0
Reported compensation expense ratios		55.2	%		55.1	%
Adjusted compensation expense ratios		52.1	%		52.6	%
Reported revenues	$	8,637.2		$	7,303.8
Adjusted revenues - see page 36	$	8,627.6		$	7,266.6

The $744.4 million increase in compensation expense in 2023 compared to 2022 was primarily due to base compensation related to the hiring of producers and other roles to service and support organic growth, benefits, stock compensation and other incentive compensation linked to operating results - $341.2 million in the aggregate, compensation associated with the acquisitions completed in the twelve month period ended December 31, 2023 - $322.4 million, increases in acquisition integration costs ‑ $39.2 million, acquisition earnout related adjustments - $22.5 million and workforce related charges - $19.1 million.

Operating expense - The following provides non-GAAP information that management believes is helpful when comparing 2023 and 2022 operating expense (in millions):

	2023			2022
Operating expense, as reported	$	1,272.3		$	1,039.9
Acquisition integration		(97.1	)		(60.5	)
Workforce and lease termination related charges		(7.4	)		(12.0	)
Levelized foreign currency translation		—			3.7
Operating expense, as adjusted	$	1,167.8		$	971.1
Reported operating expense ratios		14.7	%		14.2	%
Adjusted operating expense ratios		13.5	%		13.4	%
Reported revenues	$	8,637.2		$	7,303.8
Adjusted revenues - see page 36	$	8,627.6		$	7,266.6

The $232.4 million increase in operating expense in 2023 compared to 2022, was primarily due to expenses associated with the acquisitions completed in the twelve-month period ended December 31, 2023 - $91.2 million, acquisition integration costs - $36.6 million, and an increase of $104.6 million in the aggregate from the return of, and underlying inflation of, advertising, travel, entertainment and other client-related expenses, professional fees, business insurance and additional investments in technology.

Depreciation - The increase in depreciation expense in 2023 compared to 2022 was due primarily to the impact of purchases of furniture, equipment and leasehold improvements related to office consolidations and moves, and expenditures related to upgrading computer systems. Also contributing to the increases in depreciation expense in 2023 was the depreciation expense associated with acquisitions completed in 2023.

Amortization - The increase in amortization in 2023 compared to 2022 was primarily due to the impact of amortization expense of intangible assets associated with acquisitions completed in 2023 and 2022, partially offset by the impact of acquisition valuation true-ups recorded in 2023 relating to acquisitions made in 2022. Expiration lists, non‑compete agreements and trade names are amortized using the straight-line method over their estimated useful lives (two to fifteen years for expiration lists, two to six years for non-compete agreements and two to fifteen years for trade names). Based on the results of impairment reviews performed on amortizable intangible assets in 2023 and 2022, we wrote off $3.5 million and $2.0 million, respectively, of amortizable intangible assets related to the brokerage segment. We review all of our intangible assets for impairment periodically (at least annually for goodwill) and whenever events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. We perform such impairment reviews at the division (i.e., reporting unit) level with respect to goodwill and at the business unit level for amortizable intangible assets. In reviewing intangible assets, if the

undiscounted future cash flows were less than the carrying amount of the respective (or underlying) asset, an indicator of impairment would exist and further analysis would be required to determine whether or not a loss would need to be charged against current period earnings as a component of amortization expense. We performed a qualitative impairment review on carrying value of our goodwill for all of our reporting units as of December 31, 2023 and no indicators of impairment were noted.

Change in estimated acquisition earnout payables - The change in the expense from the change in estimated acquisition earnout payables in 2023 compared to 2022 was due primarily to adjustments made to the estimated fair value of earnout obligations related to revised assumptions due to rising interest rates and increased market volatility and projections of future performance. During 2023 and 2022, we recognized $76.1 million and $60.2 million, respectively, of expense related to the accretion of the discount recorded for earnout obligations in connection with our acquisitions made from 2020 to 2023. During 2023 and 2022, we recognized $300.7 million and $30.2 million of expense, respectively, related to net adjustments in the estimated fair market values of earnout obligations in connection with revised projections of future performance for 80 and 86 acquisitions, respectively. The net adjustments in 2023, primarily include changes made to the estimated fair value of the Willis Re acquisition earnout and reflect updated assumptions as of December 31, 2023, including forecasted 2024 revenue projections based on January 1, 2024 reinsurance renewals.

The amounts initially recorded as earnout payables for our 2020 to 2023 acquisitions were measured at fair value as of the acquisition date and are primarily based upon the estimated future operating results of the acquired entities over a two- to three‑year period subsequent to the acquisition date. The fair value of these earnout obligations is based on the present value of the expected future payments to be made to the sellers of the acquired entities in accordance with the provisions outlined in the respective purchase agreements. In determining fair value, we estimate the acquired entity’s future performance using financial projections developed by management for the acquired entity and market participant assumptions that were derived for revenue growth and/or profitability. We estimate future earnout payments using the earnout formula and performance targets specified in each purchase agreement and these financial projections. Subsequent changes in the underlying financial projections or assumptions will cause the estimated earnout obligations to change and such adjustments are recorded in our consolidated statement of earnings when incurred. Increases in the earnout payable obligations will result in the recognition of expense and decreases in the earnout payable obligations will result in the recognition of income.

Provision for income taxes - The brokerage segment’s effective tax rate in 2023 and 2022 was 25.6% and 24.7%, respectively. As of April 1, 2023, a U.K. corporate tax rate of 25% went into effect making the full year effective rate in the U.K. 23.5%. In the first quarter of 2022, we increased our state effective income tax rate, which resulted in the overall U.S. effective income tax rate increasing from 25% to 26% and caused us to incur additional income tax expense. We anticipate reporting an effective tax rate of approximately 24.5% to 26.5% in our brokerage segment based on known changes in tax rates in future periods.

Net earnings attributable to noncontrolling interests - The amounts reported in this line for 2023 and 2022 include noncontrolling interest earnings of $6.3 million and $4.4 million, respectively.

Litigation, Regulatory and Taxation Matters - We routinely are involved in legal proceedings, claims, disputes, regulatory matters and governmental inspections or investigations arising in the ordinary course of or incidental to our business, including relating to E&O claims and those noted below in this section. We record accruals in the consolidated financial statements for pending litigation when we determine that an unfavorable outcome is probable and the amount of the loss can be reasonably estimated. For the matters we disclose that do not include an estimate of the amount of loss or range of losses, such an estimate is not possible or is immaterial, and we may be unable to estimate the possible loss or range of losses that could potentially result from the application of non-monetary remedies, unless disclosed below. We currently believe that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations or cash flows. However, legal proceedings and government investigations are subject to inherent uncertainties, and unfavorable rulings or other events could occur, including the payment of substantial monetary damages or an injunction or other order prohibiting us from selling one or more products at all or in particular ways, precluding particular business practices or requiring other remedies, which may result in a material adverse impact on our business, results of operations or financial position.

During 2022, we received a subpoena from the FCPA Unit of the DOJ seeking information related to our insurance business with public entities in Ecuador. During the fourth quarter of 2023, the DOJ informed us that it had closed its inquiry and would not be pursuing enforcement action against us in connection with this matter.

As previously disclosed, our IRC 831(b) (or “micro-captive”) advisory services business has been under audit by the IRS since 2013. Among other matters, the IRS is investigating whether we have been acting as a tax shelter promoter in connection with these operations. Additionally, the IRS is conducting a criminal investigation related to IRC 831(b) micro-captive underwriting

enterprises. We have been advised that we are not a target of the criminal investigation. We are fully cooperating with both matters.

Risk Management

The risk management segment accounted for 14% of our revenue in 2023. Our risk management segment operations provide contract claim settlement, claim administration, loss control services and risk management consulting for commercial, nonprofit, captive and public sector entities, and various other organizations that choose to self-insure property/casualty coverages or choose to use a third‑party claims management organization rather than the claim services provided by underwriting enterprises. Revenues for our risk management segment are comprised of fees generally negotiated (i) on a per-claim or per-service basis, (ii) on a cost-plus basis, or (iii) as performance-based fees. We also provide risk management consulting services that are recognized as the services are delivered.

Financial information relating to our risk management segment results for 2023 and 2022 (in millions, except per share, percentages and workforce data):

Statement of Earnings	2023			2022			Change
Fees	$	1,259.7		$	1,090.8		$	168.9
Interest income and other income		27.9			1.8			26.1
Revenues before reimbursements		1,287.6			1,092.6			195.0
Reimbursements		145.4			130.5			14.9
Total revenues		1,433.0			1,223.1			209.9
Compensation		776.8			664.9			111.9
Operating		257.4			233.9			23.5
Reimbursements		145.4			130.5			14.9
Depreciation		35.9			37.8			(1.9	)
Amortization		7.7			6.2			1.5
Change in estimated acquisition earnout payables		0.5			(7.4	)		7.9
Total expenses		1,223.7			1,065.9			157.8
Earnings before income taxes		209.3			157.2			52.1
Provision for income taxes		55.3			41.4			13.9
Net earnings		154.0			115.8			38.2
Net earnings attributable to noncontrolling<br> interests		—			—			—
Net earnings attributable to
controlling interests	$	154.0		$	115.8		$	38.2
Diluted earnings per share	$	0.70		$	0.54		$	0.16
Other information
Change in diluted earnings per share		30	%		26	%
Growth in revenues (before reimbursements)		18	%		13	%
Organic change in fees (before reimbursements)		16	%		13	%
Compensation expense ratio<br> (before reimbursements)		60	%		60	%
Operating expense ratio (before reimbursements)		20	%		21	%
Effective income tax rate		26	%		26	%
Workforce at end of period<br> (includes acquisitions)		9,747			8,430
Identifiable assets at December 31	$	1,649.3		$	1,142.6

The following provides non-GAAP information that management believes is helpful when comparing 2023 and 2022 EBITDAC and adjusted EBITDAC (in millions):

	2023			2022			Change
Net earnings, as reported	$	154.0		$	115.8			33.0	%
Provision for income taxes		55.3			41.4
Depreciation		35.9			37.8
Amortization		7.7			6.2
Change in estimated acquisition earnout<br> payables		0.5			(7.4	)
Total EBITDAC		253.4			193.8			30.8	%
Net gains on divestitures		(0.4	)		(0.9	)
Acquisition integration		1.0			1.8
Workforce and lease termination related<br> charges		3.4			6.4
Acquisition related adjustments		0.5			0.4
Levelized foreign currency translation		—			(0.9	)
EBITDAC, as adjusted	$	257.9		$	200.6			28.6	%
Net earnings margin, before reimbursements,<br> as reported		12.0	%		10.6	%	+136 bpts
EBITDAC margin, before reimbursements,<br> as adjusted		20.0	%		18.5	%	+158 bpts
Reported revenues before
reimbursements	$	1,287.6		$	1,092.6
Adjusted revenues - before reimbursements<br> - see page 36	$	1,287.2		$	1,086.8

Fees - In 2023, our risk management operations, new core workers’ compensation and general liability claims arising improved from new clients coming on board in 2022 and 2023. We believe these favorable trends should continue for 2024, however, worsening economic conditions or a reversal in the number of workers employed, could cause fewer new liability and core workers’ compensation claims to arise in future quarters. Organic change in fee revenues was 16% in 2023 and 13% in 2022.

Items excluded from organic fee computations yet impacting revenue comparisons in 2023 and 2022 include the following (in millions):

	Year Ended December 31,
	2023			2022			Change
Fees	$	1,246.1		$	1,075.8			15.8	%
International performance bonus fees		13.6			15.0
Fees as reported		1,259.7			1,090.8			15.5	%
Less fees from acquisitions		(5.5	)		—
Less divested operations		—			(3.2	)
Levelized foreign currency translation		—			(4.8	)
Organic fees	$	1,254.2		$	1,082.8			15.8	%
Acquisition Activity	2023		2022
---	---	---	---	---
Number of acquisitions closed		1		1
Estimated annualized revenues acquired (in millions)	$	59.1	$	2.5

Reimbursements - Reimbursements represent amounts received from clients reimbursing us for certain third-party costs associated with providing our claims management services. In certain service partner relationships, we are considered a principal because we direct the third party, control the specified service and combine the services provided into an integrated solution. Given this principal relationship, we are required to recognize revenue on a gross basis and service partner vendor fees in the operating expense line in our consolidated statement of earnings. The increase in reimbursements in 2023 compared to 2022 was primarily due to a change in business mix that is processed internally versus using outside service partners.

Interest income and other income - Interest income and other income primarily represents interest income earned on cash, cash equivalents and fiduciary cash. Interest income and other income in 2023 increased compared to 2022 primarily due to increases in interest rates earned on fiduciary cash.

Compensation expense - The following provides non-GAAP information that management believes is helpful when comparing 2023 and 2022 compensation expense compensation expense (in millions):

	2023			2022
Compensation expense, as reported	$	776.8		$	664.9
Acquisition integration		(1.0	)		(0.3	)
Workforce and lease termination related charges		(2.0	)		(4.0	)
Acquisition related adjustments		(0.5	)		(0.4	)
Levelized foreign currency translation		—			(3.3	)
Compensation expense, as adjusted	$	773.3		$	656.9
Reported compensation expense ratios<br> (before reimbursements)		60.3	%		60.9	%
Adjusted compensation expense ratios<br> (before reimbursements)		60.1	%		60.4	%
Reported revenues (before reimbursements)	$	1,287.6		$	1,092.6
Adjusted revenues (before reimbursements) - see page 36	$	1,287.2		$	1,086.8

The $111.9 million increase in compensation expense in 2023 compared to 2022 was primarily due to increased base compensation related to merit wage increases and hiring to support growth, benefits, and other incentive compensation linked to operating results - $110.6 million in the aggregate. Also contributing to the increase was compensation associated with the acquisition completed in the twelve month period ended December 31, 2023 - $2.6 million and acquisition integration costs - $0.7 million, partially offset by reduced workforce related charges $2.0 million.

Operating expense - The following provides non-GAAP information that management believes is helpful when comparing 2023 and 2022 operating expense operating expense (in millions):

	2023			2022
Operating expense, as reported	$	257.4		$	233.9
Workforce and lease termination related charges		(1.4	)		(2.4	)
Acquisition integration		—			(1.5	)
Levelized foreign currency translation		—			(0.7	)
Operating expense, as adjusted	$	256.0		$	229.3
Reported operating expense ratios<br> (before reimbursements)		20.0	%		21.4	%
Adjusted operating expense ratios<br> (before reimbursements)		19.9	%		21.1	%
Reported revenues (before reimbursements)	$	1,287.6		$	1,092.6
Adjusted revenues - (before reimbursements) see page 36	$	1,287.2		$	1,086.8

The $23.5 million increase in operating expense in 2023 compared to 2022 was primarily due to the return of underlying inflation of, travel, entertainment and other client-related expenses and additional investments in technology - $23.9 million in the aggregate. Also contributing to the increase was operating expenses associated with the acquisitions completed in the twelve month period ended December 31, 2023 - $1.1 million, partially offset by reduced acquisition integration - $1.5 million.

Depreciation - Depreciation expense decreased in 2023 compared to 2022, which reflects the impact of office consolidations that occurred as leases expired in 2023 and 2022 (less depreciation associated with furniture, equipment and leasehold improvements), partially offset by expenditures related to upgrading computer systems.

Amortization - Amortization expense increased in 2023 compared to 2022. The increase in amortization in 2023 compared to 2022 was primarily due to the impact of amortization expense of intangible assets associated with the acquisition completed in 2023. Based on the results of impairment reviews performed on amortizable intangible assets during 2023 and 2022, there were no impairments of amortizable assets related to the risk management segment.

Change in estimated acquisition earnout payables - The change in expense from the change in estimated acquisition earnout payables in 2023 compared to 2022, were due primarily to adjustments made in 2023 and 2022 to the estimated fair value of an earnout obligation related to revised projections of future performance. During 2023 and 2022, we recognized $0.5 million and $0.8 million, respectively, of expense related to the accretion of the discount recorded for earnout obligations in connection with our 2020 to 2023 acquisitions, respectively. During 2023, there were no net adjustments in the estimated fair value of earnout obligations related to projections of future performance for acquisitions. During 2022, we recognized $8.2 million of income related to net adjustments in the estimated fair value of earnout obligations related to revised projections of future performance for three acquisitions.

Provision for income taxes - We allocate the provision for income taxes to the risk management segment using local statutory rates. As of April 1, 2023, a U.K. corporate tax rate of 25% went into effect, making the full year effective rate 23.5%. The risk management segment’s effective tax rate in 2023 and 2022 was 26.4% and 26.3%, respectively. In first quarter of 2022, we increased our state effective income tax rate, which resulted in the overall U.S. effective income tax rate increasing from 25% to 26% and caused us to incur additional income tax expense. We anticipate reporting an effective tax rate on adjusted results of approximately 25.0% to 27.0% in our risk management segment based on known changes in tax rates in future periods.

Corporate

The corporate segment reports the financial information related to our clean energy and other investments, our debt, certain corporate and acquisition-related activities and the impact of foreign currency remeasurement. See Note 14 to our 2023 consolidated financial statements for a summary discussion of the nature of our investments at December 31, 2023 and 2022. See Note 8 to our 2023 consolidated financial statements for a summary of our debt at December 31, 2023 and 2022.

Financial information relating to our corporate segment results for 2023 and 2022 (in millions, except per share and percentages):

Statement of Earnings	2023			2022			Change
Revenues from consolidated<br> clean coal facilities	$	—		$	22.3		$	(22.3	)
Royalty income from clean coal<br> licenses		—			0.7			(0.7	)
Other income		1.7			0.7			1.0
Total revenues		1.7			23.7			(22.0	)
Cost of revenues from consolidated<br> clean coal facilities		—			22.9			(22.9	)
Compensation		135.3			110.2			25.1
Operating		160.0			57.1			102.9
Interest		296.7			256.9			39.8
Depreciation		4.9			3.3			1.6
Total expenses		596.9			450.4			146.5
Loss before income taxes		(595.2	)		(426.7	)		(168.5	)
Benefit for income taxes		(237.8	)		(225.1	)		(12.7	)
Net loss		(357.4	)		(201.6	)		(155.8	)
Net loss attributable to<br> noncontrolling interests		(9.8	)		(2.6	)		(7.2	)
Net loss attributable to<br> controlling interests	$	(347.6	)	$	(199.0	)	$	(148.6	)
Diluted net loss per share	$	(1.58	)	$	(0.93	)	$	(0.65	)
Identifiable assets at December 31	$	2,520.4		$	2,540.8
EBITDAC
Net loss	$	(357.4	)	$	(201.6	)	$	(155.8	)
Benefit for income taxes		(237.8	)		(225.1	)		(12.7	)
Interest		296.7			256.9			39.8
Depreciation		4.9			3.3			1.6
EBITDAC	$	(293.6	)	$	(166.5	)	$	(127.1	)

Revenues - Revenues in the corporate segment consist of the following:

• Even though the law governing IRC Section 45 tax credits expired as of December 31, 2021, we did have some production at our clean coal production plants in 2022 to run-off existing chemical supplies.

• The de minimis 2022 revenues from consolidated clean coal production plants represents revenues from the consolidated IRC Section 45 facilities in which we have a majority ownership position and maintain control over the operations at the related facilities.

• Royalty income from clean coal licenses represents revenues related to Chem-Mod LLC. We held a 46.5% controlling interest in Chem-Mod LLC. As Chem-Mod LLC’s manager, we are required to consolidate its operations.

• The decrease in royalty income in 2023 compared to 2022 was due to the IRC Section 45 program expiring as of December 31, 2021.

Cost of revenues - Cost of revenues from consolidated clean coal production plants in 2022 consists of the cost of coal, labor, equipment maintenance, chemicals, supplies, management fees and depreciation incurred by the clean coal production plants to generate the consolidated revenues discussed above. Even though the law governing IRC Section 45 tax credits expired as of

December 31, 2021, we did have some production at our clean coal production plants in 2022 to run-off existing chemical supplies.

Compensation expense - Compensation expense for 2023 and 2022 includes salary, incentive compensation, and associated benefit expenses of $135.3 million and $110.2 million, respectively. The change in 2023 compensation expense compared to 2022 was primarily due to growth in base compensation and increased incentive compensation, as well as transaction-related costs as described on page 54 in note (2).

Operating expense - Operating expense for 2023 includes banking and related fees of $3.1 million, external professional fees and other due diligence costs related to 2023 acquisitions of $33.8 million, which includes $17.6 million of transaction-related costs as described on page 54 in note (2), other corporate and clean energy related expenses, including litigation matters, technology and other professional fees - $113.3 million in aggregate, and a net unrealized foreign exchange remeasurement loss of $9.8 million.

Operating expense for 2022 includes banking and related fees of $2.5 million, external professional fees and other due diligence costs related to 2022 acquisitions of $40.8 million, which includes specific transaction-related costs as described on page 54 in note (2), other corporate and clean energy related expenses of $44.4 million, including legal fees, and costs associated with the idling of the IRC Section 45 program and a net unrealized foreign exchange remeasurement gain of $30.6 million.

Interest expense - The increase in interest expense in 2023 compared to 2022 was due to the following (in millions):

Change in interest expense related to:
Interest on borrowings from our Credit Agreement	7.3
Interest on the maturity of the Series G notes	(3.3	)
Interest on the maturity of the Series E notes	(2.5	)
Interest on the maturity of the Series K and L notes	(4.1	)
Interest on the 500.0 million notes funded on June 13, 2018	0.1
Interest on the 950.0 million senior notes funded on March 2, 2023	45.4
Interest on the 1,000.0 million senior notes funded on November 2, 2023	11.0
Amortization of hedge gains	(14.1	)
Net change in interest expense	39.8

All values are in US Dollars.

Depreciation - Depreciation expense in 2023 increased compared to 2022, due to capital improvements made at our corporate headquarters and Gallagher Centers of Excellence in 2023 and 2022 and to the acquisition of other corporate related fixed assets in 2023.

Net losses attributable to noncontrolling interests - The amounts reported in this line for 2023 and 2022 primarily include noncontrolling interest losses of $(9.8) million and $(2.6) million, respectively, related to our investment in Chem-Mod LLC. As of December 31, 2023 and 2022, we held a 46.5% controlling interest in Chem-Mod LLC. Also, included in net earnings attributable to noncontrolling interests are offsetting amounts related to non-Gallagher owned interests in several clean energy investments.

Benefit for income taxes - We allocate the provision for income taxes to the brokerage and risk management segments using local statutory rates. The law that provides for IRC Section 45 tax credits expired in December 2021 for 21 of our 2011 Era Plants. Our consolidated effective tax rate was 18.5% and 15.9%, for 2023 and 2022, respectively. The tax rate for 2023 was lower than the statutory rate primarily due to the income tax benefit of stock-based awards, revaluation of deferred tax assets in Bermuda to the new 15% corporate tax rate as well as updates to the U.S. tax attributes associated with the U.K. loss deferral reported on the 2022 tax return. As of April 1, 2023, a U.K. corporate tax rate of 25% went into effect, making the full year effective rate in the U.K. 23.5%. The tax rate for 2022 was lower than the statutory rate primarily due to the state tax benefits of legal entity restructuring, the revaluation of state deferred tax assets to a higher effective tax rate, as well as the establishment of new deferred tax assets related to U.K. loss deferral. There were no IRC Section 45 tax credits produced in 2023 and 2022. In 2023, we recognized an unfavorable U.K. tax impact related to earnout liability adjustments. In the first quarter of 2022, we increased our state effective income tax rate, which resulted in the overall U.S. effective income tax rate increasing from 25% to 26%, and caused us to incur additional income tax benefit during the quarter and recognize a one-time benefit related to the revaluation of certain deferred income tax assets. In 2022, we recognized a one-time U.S. state tax benefit that resulted from legal entity restructuring and an unfavorable U.K. tax impact related to earnout liability adjustments. In late 2022, when it

became clear the new U.K. Prime Minister was not going to reverse a previously‑enacted corporate tax rate increase, we recognized a one-time benefit associated with the deferral of U.K. tax losses to a future year. The income tax benefit of stock based awards that vested or were settled in the years ended December 31, 2023 and 2022 was $76.1 million and $59.3 million, respectively.

Litigation Matters - In July 2019, Midwest Energy filed a patent infringement lawsuit in the United States District Court for the District of Delaware against us, Chem‑Mod LLC and numerous other related and unrelated parties. The complaint alleged that the named defendants infringed patents held exclusively by Midwest Energy and sought unspecified damages and injunctive relief. During the fourth quarter of 2023, we settled this matter for an amount that was not material and without admitting any wrongdoing.

Significant Future Income Tax Law Changes - On December 27th, 2023, Bermuda introduced a new corporate income tax that applies to Bermuda businesses that are part of multinational enterprise groups with annual revenues of EUR$750.0 million, taking effect in January 2025. We have adjusted our Bermuda tax deferred items to account for this rate increase. In 2022, the U.S. enacted the IRA and the Creating Helpful Incentives to Produce Semiconductors (which we refer to as CHIPS) and Science Act of 2022. We do not anticipate any significant impacts from either law change. See more discussions of those provisions below.

In October 2021, the OECD announced that 136 countries and tax jurisdictions agreed to implement a new Pillar 2 approach to international taxation. The first detailed draft rules under that approach were published in December 2021. The U.K. and the majority of the EU have adopted some aspects of these rules. Other countries in which we have significant operations, including Australia and Canada, have announced an intention to adopt it or started the process of doing so. The new approach came into effect in 2023 in certain jurisdictions, and different countries have implemented the necessary rules in different ways, through their individual agreement to tax treaty changes and through changes to their own domestic tax laws. Pillar 1 exempts regulated financial institutions and we believe we qualify for such exemption. Pillar 2 will establish a global minimum tax rate of 15%, such that multinational enterprises with an effective tax rate in a jurisdiction below this minimum rate will need to pay additional tax, which could be collected by the parent company’s tax authorities if that parent country adopts Pillar 2 or by those in other countries, depending on whether and how each country implements the OECD’s approach in its tax treaties and domestic tax legislation. Depending on how the jurisdictions in which we operate, and those in which we and our subsidiaries are based, choose to implement the OECD’s approach in their tax treaties and domestic tax laws, particularly if the U.S. does not adopt Pillar 2, we could be adversely affected due to our income being taxed at higher effective rates, once these new rules come into force.

U.S. Federal Income Tax Law Changes Items Impacting the Company Going Forward

Alternative Minimum Tax Credit - The IRA enacted a book-based Corporate Alternative Minimum Tax (which we refer to as CAMT) for years beginning after 2022. The CAMT imposes a minimum 15% cash tax on adjusted book income before general business credits. As such, we do not currently anticipate being subject to the CAMT and even if we were to find ourselves subject to it in a particular year, we do not believe there would be an impact on our earnings.

Excise Tax On Stock Buybacks - The IRA adds a 1% surtax to corporate stock repurchases effective January 2023. Our board approved a common stock repurchase program in 2021. If we were to effectuate stock repurchases under this program, the excise tax would not have a material impact on our results of operations or cash flows.

New Tax Credits for Renewable Energy - The IRA introduced new tax credits for certain renewable energy projects and onshoring certain manufacturing activities associated with those projects. While we continue to explore additional renewable energy investments, we do not currently anticipate significant benefits from these new incentive programs.

The following provides non-GAAP information that we believe is helpful when comparing 2023 and 2022 operating results for the corporate segment (in millions):

	2023									2022
							Net Earnings									Net Earnings
							(Loss)									(Loss)
				Income			Attributable to						Income			Attributable to
	Pretax			Tax			Controlling			Pretax			Tax			Controlling
	Loss			Benefit			Interests			Loss			Benefit			Interests
Components of Corporate<br> Segment, as reported
Interest and banking costs	$	(299.8	)	$	78.0		$	(221.8	)	$	(259.4	)	$	67.3		$	(192.1	)
Clean energy related (1)		(15.5	)		4.0			(11.5	)		(12.6	)		3.4			(9.2	)
Acquisition costs (2)		(42.1	)		6.4			(35.7	)		(44.9	)		3.7			(41.2	)
Corporate (3) (4)		(228.0	)		149.4			(78.6	)		(107.2	)		150.7			43.5
Reported Year Ended		(585.4	)		237.8			(347.6	)		(424.1	)		225.1			(199.0	)
Adjustments
Clean energy related		4.4			(1.1	)		3.3			—			—			—
Transaction-related costs (2)		22.6			(4.9	)		17.7			33.4			(2.7	)		30.7
Legal and tax related (3)		48.0			(21.8	)		26.2			(5.0	)		(45.2	)		(50.2	)
Components of Corporate<br> Segment, as adjusted
Interest and banking costs		(299.8	)		78.0			(221.8	)		(259.4	)		67.3			(192.1	)
Clean energy related (1)		(11.1	)		2.9			(8.2	)		(12.6	)		3.4			(9.2	)
Acquisition costs		(19.5	)		1.5			(18.0	)		(11.5	)		1.0			(10.5	)
Corporate (4)		(180.0	)		127.6			(52.4	)		(112.2	)		105.5			(6.7	)
Adjusted Year Ended	$	(510.4	)	$	210.0		$	(300.4	)	$	(395.7	)	$	177.2		$	(218.5	)

(1) Pretax losses for the years ended December 31, 2023 and 2022 are presented net of amounts attributable to noncontrolling interests of $(9.8) million and $(2.6) million, respectively.

(2) We incurred transaction-related costs, which include legal, consulting, employee compensation and other professional fees primarily associated with our acquisition of Willis Re (primarily related to deferred closings in certain jurisdictions in 2022), the acquisition of Buck, which was signed on December 20, 2022 and closed on April 3, 2023, and the acquisitions of Cadence Insurance, Eastern Insurance and My Plan Manager, all of which closed in fourth quarter 2023.

(3) Adjustments in fourth quarter 2022 include costs associated with legal and tax matters as well as the impact of tax planning items associated with 2022 tax returns filed in fourth quarter 2023. Adjustments in fourth quarter 2022 include (a) additional U.K. income tax expense related to the non‑deductibility of acquisition-related adjustments made in the quarter, (b) gains and costs associated with legal and tax matters, (c) income tax provision adjustments as filed in our 2021 tax returns and (d) income tax benefit related to adjusting certain U.K. deferred income tax assets to the future 25% corporate income tax rate.

(4) Corporate pretax loss includes a net unrealized foreign exchange remeasurement loss of $(9.8) million and a net unrealized foreign exchange remeasurement gain of $30.6 million in the year ended December 31, 2022.

Interest and banking costs and debt - Interest and banking costs includes expenses related to our debt.

Clean energy related - For 2023, this consists of operating results related to our investments in new clean energy projects and the wind up of our investment in clean coal production plants. Prior to 2023, this consisted of the operating results related to our investments in clean coal production plants and royalty income from clean coal licenses related to Chem-Mod- LLC. The production of IRC Section 45 clean energy tax credits ceased in December 2021, which reduced the royalty income received by Chem-Mod LLC and net earnings generated by our investments in clean coal production plants in 2022. Even though the law governing IRC Section 45 tax credits expired as of December 31, 2021, we did have some production at our clean coal production plants in the three-month period ended March 31, 2022 to run-off existing chemical supplies.

Acquisition costs - Consists mostly of external professional fees and other due diligence costs related to acquisitions. On occasion, we enter into forward currency hedges for the purchase price of committed, but not yet funded, acquisitions with funding requirements in currencies other than the U.S. dollar. The gains or losses, if any, associated with these hedge transactions are also included.

Corporate - Consists of overhead allocations mostly related to corporate staff compensation, other corporate level activities, and net unrealized foreign exchange remeasurement. In addition, corporate includes the tax expense related to partial taxation of foreign earnings, nondeductible executive compensation and entertainment expenses, the tax benefit from vesting of employee equity awards, as well as other permanent or discrete tax items not reflected in the provision for income taxes in the brokerage and risk management segments. The income tax benefit of stock based awards that vested or were settled in the years ended December 31, 2023 and 2022 was $76.1 million and $59.3 million, respectively, and is included in the table above in the Corporate line.

Clean Energy Investments - We have investments in limited liability companies that own or have owned 29 clean coal production plants developed by us and six clean coal production plants we purchased from a third party. All 35 plants produced refined coal using propriety technologies owned by Chem-Mod LLC. We believe that the production and sale of refined coal at these plants prior to 2022 were qualified to receive refined coal tax credits under IRC Section 45. The 14 2009 Era Plants received tax credits through 2019 and the 21 2011 Era Plants received tax credits through 2021.

Our investment in Chem-Mod LLC prior to 2022 generated royalty income from refined coal production plants owned by those limited liability companies in which we invested as well as refined coal production plants owned by other unrelated parties.

See the risk factors regarding our IRC Section 45 investments under Item 1A, “Risk Factors.” for a more detailed discussion of these and other factors could impact the information above. See Note 14 to our 2023 consolidated financial statements for more information regarding risks and uncertainties related to these investments.

Liquidity and Capital Resources

Liquidity describes the ability of a company to generate sufficient cash flows to meet the cash requirements of its business operations. The insurance brokerage and risk management industries are not capital intensive. Historically, our capital requirements have primarily included dividend payments on our common stock, repurchases of our common stock, funding of our investments, acquisitions of brokerage and risk management operations and capital expenditures, including investments being made in IT and software development projects.

On December 6, 2023, we acquired all of the issued and outstanding shares of My Plan Manager. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire My Plan Manager. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired My Plan Manager is the leading provider of plan management services to participants in Australia’s National Disability Insurance Scheme.

On November 30, 2023, we acquired all the issued and outstanding shares of Cadence Insurance. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Cadence Insurance. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Cadence Insurance business offers a full suite of commercial property/casualty, employee benefits and personal lines products to clients from 34 offices spanning nine states across the Southeast, including Texas.

On April 3, 2023, we acquired the partnership interests of Buck. See Note 3 to our 2023 consolidated financial statements for information on the purchase price consideration paid to acquire Buck. We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Buck business is a leading provider of retirement, human resources and employee benefits consulting and administration services. Total expected expense to integrate Buck into our operations is approximately $125.0 million.

On December 1, 2021, we acquired substantially all of the Willis Re for an initial gross consideration of $3.17 billion, and potential additional consideration of $750 million subject to certain third-year revenue targets. We funded the transaction using cash on hand, including the $1.4 billion of net cash raised in our May 17, 2021 follow-on common stock offering, $850 million of net cash borrowed in our May 20, 2021 30-year senior note issuance, $750 million of net cash borrowed in our November 9, 2021 10-year ($400 million) and 30-year ($350 million) senior note issuances and short‑term borrowings.

Operating Cash Flows

Historically, we have depended on our ability to generate positive cash flow from operations to meet a substantial portion of our cash requirements. We believe that our cash flows from operations and borrowings under our Credit Agreement (as defined below) will provide us with adequate resources to meet our liquidity needs in the foreseeable future. To fund acquisitions made during 2023 and 2022, we relied on a combination of net cash flows from operations, proceeds from borrowings under our Credit Agreement, proceeds from issuances of senior unsecured notes and issuance of our common stock.

Cash provided by operating activities was $2,031.7 million and $1,390.0 million for 2023 and 2022, respectively. The increase in cash provided by operating activities during 2023 compared to the same period in 2022 was primarily due to growth in our core broking and risk management operations, timing differences between periods with cash receipts and disbursements related to other current assets and current liabilities compared to 2022, and the collection of refined coal production related receivables due to the wind up of clean coal operations and the cash benefit related to the utilization of IRC Section 45 tax credits that occurred in 2022. During the three-month period ended March 31, 2022, we collected $71.1 million of clean coal production related receivables and made $84.8 million in payments for clean coal production related payables that were accrued in our December 31, 2021 consolidated balance sheet. With respect to the 2022 provision for deferred income taxes, the decrease in the deferred tax asset for the utilization of IRC Section 45 tax credits was offset by the increase in deferred tax assets related to capitalized indirect property costs and U.K. net operating loss carryforwards.

The 2023 income taxes paid amounts were favorably impacted compared to 2022 due to the reversal of the tax method changes on our 2022 tax return filed in the fourth quarter of 2023. Also in 2022, we elected to defer the utilization of 2022 net operating losses in the U.K. causing additional cash tax payments of $49.0 million relating to 2022. The U.K. payments would have been made in future periods, and do not represent additional taxes due.

During 2023 and 2022, employee matching contributions to the 401(k) plan of $73.8 million and $65.7 million, respectively, relating to 2022 and 2021 were funded using common stock.

Our cash flows from operating activities are primarily derived from our earnings from operations, as adjusted, for our non-cash expenses, which include depreciation, amortization, change in estimated acquisition earnout payables, deferred compensation, restricted stock, and stock-based and other non-cash compensation expenses. Historically, cash provided by operating activities was unfavorably impacted if the amount of IRC Section 45 tax credits generated (which is the amount we recognized for financial reporting purposes) was greater than the amount of tax credits utilized to reduce our tax cash obligations. Excess tax credits produced in 2021 and 2020 resulted in an increase to our deferred tax assets, which was a net use of cash related to operating activities. In 2023, IRC Section 45 credits were no longer generated due to the IRC Section 45 program expiring as of December 31, 2021, and therefore the IRC Section 45 credit utilization against our cash tax obligation resulted in favorable cash flow in 2023. Please see “Clean energy investments” below for more information on their potential future impact on cash provided by operating activities.

When assessing our overall liquidity, we believe that the focus should be on net earnings as reported in our consolidated statement of earnings, adjusted for non-cash items (i.e., EBITDAC), and cash provided by operating activities in our consolidated statement of cash flows. Consolidated EBITDAC was $2,555.6 million and $2,266.5 million for 2023 and 2022, respectively. Net earnings attributable to controlling interests were $969.5 million and $1,114.2 million for 2023 and 2022, respectively. We believe that EBITDAC items are indicators of trends in liquidity.

Change in Presentation of Fiduciary Assets and Liabilities in First Quarter 2023

In first quarter 2023, we changed the presentation of certain amounts and classifications in our consolidated balance sheet and statement of cash flows to identify and present fiduciary assets and liabilities and respective changes of these accounts in the balance sheet and statement of cash flows. These revisions also better reflect the cash flows associated with our operations. Lines for accounts receivable, fiduciary assets and fiduciary liabilities were added and lines for restricted cash, premiums and fees receivable and premiums payable to underwriting enterprises were removed. In addition to these changes, we moved the net change in fiduciary assets and liabilities from the operating section to the financing section of the statement of cash flows. We made the applicable revisions to the December 31, 2022 balance sheet and statement of cash flow for the year ended December 31, 2022 and 2021 to conform to the current period presentation. These changes had no impact on the 2022 and 2021 consolidated statement of earnings or December 31, 2022 and 2021 stockholders’ equity. See Note 5 to our 2023 consolidated financial statements for an additional discussion of the change in presentation of fiduciary assets and liabilities.

Defined Benefit Pension Plan

Our policy for funding our defined benefit pension plan is to contribute amounts at least sufficient to meet the minimum funding requirements under the IRC. The Employee Retirement Security Act of 1974, as amended (which we refer to as ERISA), could impose a minimum funding requirement for our plan. We were not required to make any minimum contributions to the plan for the 2023 and 2022 plan years. Funding requirements are based on the plan being frozen and the aggregate amount of our historical funding. The plan’s actuaries determine contribution rates based on our funding practices and requirements. Funding amounts may be influenced by future asset performance, the level of discount rates and other variables impacting the assets and/or liabilities of the plan. In addition, amounts funded in the future, to the extent not due under regulatory requirements, may be affected by alternative uses of our cash flows, including dividends, acquisitions and common stock repurchases. During 2023 and 2022 we did not make discretionary contributions to the plan.

See Note 13 to our 2023 consolidated financial statements for additional information required to be disclosed relating to our defined benefit pension plan. We are required to recognize an accrued benefit plan liability for our underfunded defined benefit pension plan (which we refer to together as the Plan). The offsetting adjustment to the liabilities required to be recognized for the Plan is recorded in “Accumulated Other Comprehensive Loss,” net of tax, in our consolidated balance sheet. We will recognize subsequent changes in the funded status of the Plans through the income statement and as a component of comprehensive earnings, as appropriate, in the year in which they occur. Numerous items may lead to a change in funded status of the Plan, including actual results differing from prior estimates and assumptions, as well as changes in assumptions to reflect information available at the respective measurement dates.

The net change in the funded status of the Plan in 2023 resulted in an increase in noncurrent assets in 2023 of $12.3 million. In 2023, the funded status of the Plan was unfavorably impacted by a decrease in the discount rates used in the measurement of the pension liabilities at December 31, 2023 and other assumption changes, the net impact of which was approximately $8.6 million. In addition, the funded status was favorably impacted by returns on the plan’s assets being significantly higher in 2023 than anticipated by approximately $20.9 million. In 2022, the funded status of the Plan was favorably impacted by an increase in the discount rates used in the measurement of the pension liabilities at December 31, 2022 and other assumption changes, the net impact of which was approximately $70.5 million. In addition, the funded status was unfavorably impacted by returns on the plan’s assets being significantly lower in 2022 than anticipated by approximately $(72.8) million (negative return). The net change in the funded status of the Plan in 2022 resulted in a decrease in noncurrent assets in 2022 of $2.3 million. While the change in the funded status of the Plan had no direct impact on our cash flows from operations in 2023 and 2022, potential changes in the pension regulatory environment and investment losses in our pension plan have an effect on our capital position and could require us to make significant contributions to our defined benefit pension plan and increase our pension expense in future periods.

Investing Cash Flows

Capital Expenditures - Capital expenditures were $193.6 million and $182.7 million for 2023 and 2022, respectively. In 2023 and 2022 capital expenditures include amounts incurred related to office moves, investments made in IT and software development projects. Relating to the development of our corporate headquarters, we received property tax related credits under a tax-increment financing note from Rolling Meadows, Illinois and an Illinois state EDGE tax credit. Incentives from these two programs could total between $50.0 million and $80.0 million over a fifteen-year period. In 2024, we expect total expenditures for capital improvements to be approximately $175.0 million, part of which is related to expenditures on office moves and investments being made in IT and software development projects. The decrease in the expected capital expenditures in 2024 compared to 2023 is primarily due to lower integration related expenditures.

Acquisitions - Cash paid for acquisitions, net of cash and restricted cash acquired, was $3,041.9 million and $764.9 million in 2023 and 2022, respectively. The increased use of cash for acquisitions in 2023 compared to 2022 was primarily due to our acquisition of Buck, Eastern Insurance, Cadence Insurance and My Plan Manager. In addition, during 2023 and 2022 we issued 2.5 million shares ($525.8 million) and 0.9 million shares ($164.6 million), respectively, of our common stock as payment for a portion of the total consideration paid for acquisitions and earnout payments. We completed 51 and 37 acquisitions in 2023 and 2022, respectively. Annualized revenues of businesses acquired in 2023 and 2022 totaled approximately $885.1 million and $246.5 million, respectively. In 2024, we expect to use new debt, our Credit Agreement (as defined below), cash from operations and our common stock, or a combination thereof to fund all of the acquisitions we complete.

In order to maintain leverage ratios and investment grade credit ratings or if liquidity concerns arise, we may be more likely to use common stock to fund acquisitions.

Dispositions - During 2023 and 2022, we sold several books of business and recognized one-time gains of $10.0 million and $13.0 million, respectively. We received cash proceeds of $9.9 million and $11.0 million for 2023 and 2022, respectively, related to these transactions.

Clean Energy Investments - During the period from 2009 through 2021, we made significant investments in clean energy operations capable of producing refined coal that we believe qualified for tax credits under IRC Section 45. The IRC Section 45 tax credits generate positive cash flow by reducing the amount of federal income taxes we pay. We anticipate positive net cash flow related to IRC Section 45 activity in 2024. However, there are several variables that can impact net cash flow from clean energy investments in any given year. Therefore, accurately predicting cash in particular future periods is not possible at this time. However, if we continue to generate sufficient taxable income to use the tax credits produced by our IRC Section 45 investments, we anticipate that these investments will continue to generate positive net cash flows due to the utilization of IRC Section 45 tax credits to offset taxable income in years after the program expired. In October 2023, we filed our 2022 federal income tax return and elected to discontinue a tax method change. This resulted in the addback of tax credits that were not

utilized on the tax return by approximately $157.0 million, which was recorded in the fourth quarter 2023. Amended tax returns in the fourth quarter 2023 and closed tax years accounted for the addback of unutilized tax credits of $6.6 million of IRC Section 45 tax credits. In October 2022, we filed our 2021 federal tax return and elected to continue a tax method change in that return. This resulted in an acceleration of the amount of tax credits that we utilized on the return by approximately $150.0 million, which was recorded in fourth quarter 2022. We also amended our 2014 and 2015 federal tax returns in the fourth quarter of 2022, which resulted in a refund of $3.7 million of IRC Section 45 tax credits. While we cannot precisely forecast the cash flow impact in any particular period, we anticipate that the net cash flow impact of IRC Section 45 activity will be positive overall. Please see "Clean energy investments" on page 54 for a more detailed description of these investments and their risks and uncertainties.

Financing Cash Flows

At December 31, 2023, we had $3,550.0 million of Senior Notes, $3,948.0 million of corporate‑related borrowings outstanding under separate note purchase agreements entered into during the period from 2014 to 2021, $245.0 million of borrowings outstanding under our Credit Agreement, $289.0 million outstanding under our Premium Financing Debt Facility and a cash and cash equivalent balance of $971.6 million. See Note 8 to our 2023 consolidated financial statements for a discussion of the terms of the Senior Notes, Note purchase agreements, the Credit Agreement (as defined below) and the Premium Financing Debt Facility.

Consistent with past practice, as of December 31, 2023 we had pre-issuance hedges open for $150.0 million for 2024. During the three months ended December 31, 2023, we settled approximately $128.0 million of interest rate contracts hedges with a notional value of $900.0 million that will be amortized into interest expense in future periods.

The Senior Notes, Note Purchase Agreements, the Credit Agreement and the Premium Financing Debt Facility contain various financial covenants that require us to maintain specified financial ratios. We were in compliance with these covenants as of December 31, 2023.

Senior Notes - On November 2, 2023, we closed and funded an offering of $1,000.0 million of unsecured senior notes in two tranches. The $400.0 million aggregate principal amount of 6.50% Senior Notes are due 2034 (which we refer to as the 2034 Notes) and $600.0 million aggregate principal amount of 6.75% Senior Notes are due 2054 (which we refer to as the 2054 Notes). The weighted average interest rate is 5.97% per annum after giving effect to underwriting costs and a net hedge gain. During 2021 through 2023, we entered into a pre-issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $128.0 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

On March 2, 2023, we closed and funded an offering of $950.0 million of unsecured senior notes in two tranches. The $350.0 million aggregate principal amount of 5.50% Senior Notes are due 2033 (which we refer to as the 2033 Notes) and $600.0 million aggregate principal amount of 5.75% Senior Notes are due 2053 (which we refer to as the 2053 Notes). The weighted average interest rate is 5.05% per annum after giving effect to underwriting costs and a net hedge gain. During 2019 through 2022, we entered into a pre‑issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $112.7 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

On November 9, 2021, we closed and funded an offering of $750.0 million of unsecured senior notes in two tranches. The $400.0 million aggregate principal amount of 2.40% Senior Notes are due 2031 (which we refer to as the 2031 November Notes) and $350.0 million aggregate principal amount of 3.05% Senior Notes are due 2052 (which we refer to as the 2052 November Notes and together with the 2031 November Notes, the November Notes). The weighted average interest rate is 2.80% per annum after giving effect to underwriting costs. The November Notes were issued pursuant to an indenture, dated as of May 20, 2021, as modified and supplemented in respect of the November Notes by an Officer’s Certificate pursuant to the indenture, dated as of November 9, 2021. The relevant terms of the November Notes, the indenture and the Officer’s Certificate are further described under the caption “Description of Notes” in the prospectus supplement filed with the SEC on November 3, 2021. We used the net proceeds of the November Notes offering to fund a portion of the cash consideration payable in connection with the Willis Re transaction.

On May 20, 2021, we closed and funded an offering of $1,500.0 million of unsecured senior notes in two tranches. The $650.0 million aggregate principal amount of 2.50% Senior Notes were due 2031 (which we refer to as the 2031 May Notes) and $850.0 million aggregate principal amount of 3.50% Senior Notes are due 2051 (which we refer to as the 2051 May Notes and

together with the 2031 May Notes, the May Notes). The weighted average interest rate is 3.13% per annum after giving effect to underwriting costs and the net hedge loss. In 2018 and 2019, we entered into a pre-issuance interest rate hedging transaction related to these notes. We realized a net cash loss of approximately $57.8 million on the hedging transactions that will be recognized on a pro rata basis as an increase to our reported interest expense over ten years.

The offering of the May Notes was made pursuant to a shelf registration statement filed with the SEC. The relevant terms of the May Notes, the Indenture and the Officer’s Certificate are further described under the caption “Description of Notes” in the prospectus supplement dated May 13, 2021, filed with the SEC on May 17, 2021.

The 2031 May Notes had a special optional redemption whereby, we had the option to redeem the 2031 May Notes, in whole and not in part, by providing notice of such redemption to the holders of the 2031 May Notes within 30 days following a Willis Re transaction termination event, at a redemption price equal to 101% of the aggregate principal amount of the 2031 May Notes, plus any accrued and unpaid interest. These notes were redeemed on August 13, 2021. As a result of the redemption of this debt, we incurred a loss on extinguishment of debt of $16.2 million, which included the redemption price premium of $6.5 million, which is presented in cash flows from financing activities, and the unamortized discount amount on the debt issuance and the write-off of all the debt acquisition costs of $9.7 million, which is presented in cash flows from operating activities. The 2051 May Notes are not subject to the special optional redemption. We used the net proceeds of the 2051 May Notes offering to fund a portion of the cash consideration payable in connection with the Willis Re transaction.

Note Purchase Agreement - During June 2023, we used operating cash to fund the $200.0 million Series N note maturity that had a fixed rate of 4.13% that was due June 24, 2023.

During June 2023, we used operating cash to fund the prepayment of the $50.0 million Series CC note floating rate of 90 day LIBOR plus 1.40%, balloon that was originally due on June 13, 2024.

During February 2023, we used operating cash to fund the $50.0 million Series E note maturity that had a fixed rate of 5.49% that was due February 10, 2023.

On May 5, 2021, we closed and funded a private placement of $75.0 million aggregate principal amount of unsecured senior notes. The unsecured senior notes were issued with an interest rate of 2.46% and are due in 2036. We used the proceeds of this offering in part to fund acquisitions and general corporate purposes. The weighted average interest rate is 3.98% after giving effect to a net hedging loss. In 2018, we entered into a pre-issuance interest rate hedging transaction related to this private placement. We realized a net cash loss of approximately $17.2 million on the hedging transactions that will be recognized on a pro rata basis as an increase in our reported interest expense over ten years of the total 15‑year notes.

On February 10, 2021, we closed a private placement of $100.0 million aggregate principal amount of unsecured senior notes. The unsecured senior notes were issued with an interest rate of 2.44% and are due in 2036. We used the proceeds of these offerings in part to fund the $75.0 million February 10, 2021 Series D note maturity, and for acquisitions and general corporate purposes. The weighted average interest rate is 3.97% after giving effect to a net hedging loss. In 2018, we entered into a pre‑issuance interest rate hedging transaction related to this private placement. We realized a net cash loss of approximately $22.9 million on the hedging transactions that will be recognized on a pro rata basis as an increase in our reported interest expense over ten years of the total 15‑year notes.

Credit Agreement - On June 22, 2023, we entered into the new Credit Agreement (which we refer to as the Credit Agreement) with an administrative agent and a group of other lenders. The Credit Agreement provides for a five-year unsecured revolving credit facility in the amount of $1,200.0 million (including a $75.0 million letter of credit sub-facility), which is also available in Pounds Sterling, Canadian Dollars, Australian Dollars, New Zealand Dollars, Euros, Japanese Yen and any other currencies agreed by the lenders. On November 7, 2023, we entered into the First Amendment to the Credit Agreement, pursuant to which we increased the commitments under the Credit Agreement to $1,700.0 million. The Credit Agreement permits us to designate wholly-owned subsidiaries located in certain jurisdictions as additional borrowers, the obligations of which under the Credit Agreement will be guaranteed by the Company, subject to the terms and conditions set forth in the Credit Agreement. Any subsidiary that guarantees any notes under the Company’s existing note purchase agreements is required to guarantee the obligations under the Credit Agreement. There are currently no subsidiary borrowers or guarantors under the Credit Agreement.

Loans borrowed under the Credit Agreement bear interest at a variable annual rate based on a customary benchmark rate for each available currency including Secured Overnight Financing Rate (which we refer to as SOFR) for loans in U .S. Dollars, or at our election solely for loans in U.S. Dollars, the base rate, plus in each case an applicable margin. Interest rates on base rate loans and outstanding drawings on letters of credit under the Credit Agreement will be based on the Base Rate, as defined in the Credit Agreement, plus a margin of 0.00% to 0.375%, depending on the rating of our long-term senior unsecured debt. Interest rates for SOFR loans and loans in currencies other than U.S. dollars under the Credit Agreement will be based on, as applicable, a SOFR

Daily Floating Rate, Term SOFR, Alternative Currency Daily Rate or Alternative Currency Term Rate, as defined in the Credit Agreement, plus a margin of 0.775% to 1.375%, depending on the rating of our long-term senior unsecured debt. The annual facility fee related to the Credit Agreement is between 0.100% and 0.250% of the revolving credit commitment, depending on the rating of our long-term senior unsecured debt. Subject to certain conditions stated in the Credit Agreement, we may borrow, prepay and reborrow amounts under the Credit Agreement at any time during the term of the Credit Agreement. Funds borrowed under the Credit Agreement may be used for general corporate and working capital purposes of the Company and its subsidiaries.

The Credit Agreement also contains customary representations and warranties and affirmative and negative covenants, including financial covenants, as well as customary events of default, with corresponding grace periods, including, without limitation, payment defaults, cross-defaults to other agreements evidencing indebtedness and bankruptcy-related defaults. We were in compliance with these covenants as of December 31, 2023.

Concurrently, on June 22, 2023, we paid off and terminated all of our obligations under the Second Amended and Restated Multicurrency Credit Agreement, dated as of June 7, 2019.

There were $245.0 million of borrowings outstanding under the Credit Agreement at December 31, 2023. Due to the outstanding borrowing and letters of credit, $1,443.4 million remained available for potential borrowings under the Credit Agreement at December 31, 2023.

We use the Credit Agreement to post letters of credit and to borrow funds to supplement our operating cash flows from time to time. During 2023, we borrowed an aggregate of $3,795.0 million and repaid $3,610.0 million under our Credit Agreement and under the Second Amended and Restated Multicurrency Credit Agreement. During 2022, we borrowed an aggregate of $2,570.0 million and repaid $2,555.0 million under the Amended (and Second Amended) and Restated Multicurrency Credit Agreement which was terminated on June 22, 2023. Principal uses of the 2023 and 2022 borrowings under the Credit Agreement were to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

Premium Financing Debt Facility - On October 31, 2023, we entered into an amendment to our revolving loan facility (which we refer to as the Premium Financing Debt Facility) that provides funding for the three Australian (AU) and New Zealand (NZ) premium finance subsidiaries. The Premium Financing Debt Facility is comprised of: (i) Facility B is separated into AU$390.0 million and NZ$25.0 million tranches (the NZ$ tranche will be decreased as of May 1, 2024 to NZ$10.0 million), (ii) Facility C, an AU$60.0 million equivalent multi‑currency overdraft tranche and (iii) Facility D, a NZ$15.0 million equivalent multi-currency overdraft tranche.

The interest rates on Facility B are Interbank rates, which vary by tranche, duration and currency, plus a margin of 1.500% and 1.850% for the AU$ and NZ$ tranches, respectively. The interest rates on Facilities C and D are 30 day Interbank rates, plus a margin of 0.830% and 0.990% for the AU$ and NZ$ tranches, respectively. The annual fee for Facility B is 0.675% and 0.8325% for the undrawn commitments for the AU$ and NZ$ tranches, respectively. The annual fee for Facility C is 0.77% and for Facility D is 0.90% of the total commitments of the facilities.

The terms of our Premium Financing Debt Facility include various financial covenants, including covenants that require us to maintain specified financial ratios. We were in compliance with these covenants as of December 31, 2023. The Premium Financing Debt Facility also includes customary provisions for transactions of this type, including events of default, with corresponding grace periods and cross-defaults to other agreements evidencing our indebtedness. Facilities B, C and D are secured by the premium finance receivables of the Australian and New Zealand premium finance subsidiaries.

At December 31, 2023, AU$365.0 million and NZ$0.0 million of borrowings were outstanding under Facility B, AU$45.9 million of borrowings outstanding under Facility C and NZ$13.7 million of borrowings were outstanding under Facility D, which in aggregate amount to US$289.0 million of borrowings outstanding under the Premium Financing Debt Facility. Accordingly, as of December 31, 2023, AU$25.0 million and NZ$25.0 million remained available for potential borrowing under Facility B, and AU$14.1 million and NZ$1.3 million under Facilities C and D, respectively.

Dividends - Our board of directors determines our dividend policy. Our board of directors determines dividends on our common stock on a quarterly basis after considering our available cash from earnings, our anticipated cash needs and current conditions in the economy and financial markets.

In 2023, we declared $478.8 million in cash dividends on our common stock, or $2.20 per common share. On December 15, 2023, we paid a fourth quarter dividend of $0.55 per common share to shareholders of record as of December 1, 2023. On January 24, 2024, we announced a quarterly dividend for first quarter 2024 of $0.60 per common share. If the dividend is maintained at $0.60 per common share throughout 2024, this dividend level would result in an annualized net cash used by

financing activities in 2024 of approximately $519.8 million (based on the outstanding shares as of December 31, 2023), or an anticipated increase in cash used of approximately $46.2 million compared to 2023. We can make no assurances regarding the amount of any future dividend payments.

Shelf Registration Statement - On March 8, 2021 we filed a shelf registration statement on Form S-3 with the SEC, registering the offer and sale from time to time, of an indeterminate amount of debt securities, guarantees, common stock, preferred stock, warrants, depositary shares, purchase contracts, or units. The availability of the potential liquidity under this shelf registration statement depends on investor demand, market conditions and other factors. We make no assurances regarding when, or if, we will issue any securities under this registration statement. On November 15, 2022, we filed a second shelf registration statement on Form S-4 with the SEC, registering 7.0 million shares of our common stock that we may offer and issue from time to time in connection with future acquisitions of other businesses, assets or securities. At December 31, 2023, 6.2 million shares remained available for issuance under this registration statement.

Common Stock Repurchases - We have in place a common stock repurchase plan approved by our board of directors in July 2021 that authorizes the repurchase of up to $1.5 billion of common stock. During the years ended December 31, 2023 and 2022, we did not repurchase shares of our common stock. The plan authorizes the repurchase of our common stock at such times and prices, as we may deem advantageous, in transactions on the open market or in privately negotiated transactions. We are under no commitment or obligation to repurchase any particular number of shares, and the plan may be suspended at any time at our discretion. Funding for share repurchases may come from a variety of sources, including cash from operations, short-term or long-term borrowings under our Credit Agreement or other sources.

Public Offering of Common Stock - On May 12, 2021, we entered into an Underwriting Agreement with Morgan Stanley & Co. LLC to issue 9.0 million shares of our common stock in a public offering. On May 12 2021, we agreed to price the offering of 9.0 million shares of our common stock at $142.00 and granted the underwriters in the offering a 30-day option to purchase up to an additional 1.3 million shares of our common stock at the same price. On May 12, 2021, the underwriters exercised the option to purchase an additional 1.3 million shares. The offering closed on May 17, 2021 and 10.3 million shares of our common stock were issued for net proceeds, after underwriting discounts and other expenses related to this offering, of $1,437.9 million. We used the net proceeds of this offering related to the 2051 Notes to fund a portion of the cash consideration payable in connection with the Willis Re transaction.

At-the-Market Equity Program - On November 15, 2022, we entered into an Equity Distribution Agreement with Morgan Stanley & Co. LLC, pursuant to which we may offer and sell, from time to time, up to 3,000,000 shares of our common stock through Morgan Stanley as sales agent. We intend to use the net proceeds of sales under this program to fund future acquisitions from time to time or for general corporate purposes. Pursuant to the agreement, shares may be sold by means of ordinary brokers’ transactions, including on the New York Stock Exchange, at market prices prevailing at the time of sale, at prices related to the prevailing market prices, or at negotiated prices, in block transactions, or as otherwise agreed upon by us and Morgan Stanley. During the quarter ended December 31, 2023, we did not sell shares of our common stock under the program.

Common Stock Issuances - Another source of liquidity to us is the issuance of our common stock pursuant to our stock option and employee stock purchase plans. Proceeds from the issuance of common stock under these plans were $120.2 million in 2023 and $123.1 million in 2022. On May 10, 2022, our stockholders approved the 2022 Long-Term Incentive Plan (which we refer to as the LTIP), which replaced our previous stockholder-approved 2017 Long-Term Incentive Plan. All of our officers, employees and non‑employee directors are eligible to receive awards under the LTIP. Awards which may be granted under the LTIP include non‑qualified and incentive stock options, stock appreciation rights, restricted stock units and performance units, any or all of which may be made contingent upon the achievement of performance criteria. Stock options with respect to 12.2 million shares (less any shares of restricted stock issued under the LTIP - 2.8 million shares of our common stock were available for this purpose as of December 31, 2023) were available for grant under the LTIP at December 31, 2023. Our employee stock purchase plan allows our employees to purchase our common stock at 95% of its fair market value. Proceeds from the issuance of our common stock related to these plans have contributed favorably to net cash provided by financing activities in the years ended December 31, 2023 and 2022, and we believe this favorable trend will continue in the foreseeable future.

contribution, subject to certain exceptions enumerated in the plan document. Matching contributions are subject to a five-year graduated vesting schedule and can be funded in cash or company stock. We expensed (net of plan forfeitures) $86.0 million and $73.8 million related to the plan in 2023 and 2022, respectively. During 2022, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2022 plan year to be funded with our common stock, which was funded in February 2023. During 2023, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2023 plan year to be funded with our common stock, which is expected to be funded in February 2024.

Other Liquidity Matters

Letters of Credit and Other Guarantees

We have entered into a number of arrangements whereby our performance on certain obligations is guaranteed by a third party through the issuance of a letter of credit. We had total letters of credit outstanding of $21.2 million at December 31, 2023 and $13.0 million at December 31, 2022. These letters of credit secure our self-insurance deductibles on our own insurance programs, allow certain of our captive operations to meet minimum statutory surplus requirements, lease security deposits and collateral related to premium and claim funds held in a fiduciary capacity. See Note 17 to our 2023 consolidated financial statements for additional discussion of these obligations and commitments.

Earnout Obligations

Substantially all of the purchase agreements related to the acquisitions we do contain provisions for potential earnout obligations. For all of our acquisitions made in the period from 2020 to 2023 that contain potential earnout obligations, such obligations are measured at fair value as of the acquisition date and are included on that basis in the recorded purchase price consideration for the respective acquisition. The amounts recorded as earnout payables are primarily based upon estimated future potential operating results of the acquired entities over a two- to three-year period subsequent to the acquisition date. The aggregate amount of the maximum earnout obligations related to these acquisitions was $2,009.8 million, of which $1,294.2 million was recorded in our consolidated balance sheet as of December 31, 2023 based on the estimated fair value of the expected future payments to be made, of which approximately $564.8 million can be settled in cash or stock at our option and $729.4 million must be settled in cash.

Apart from commitments, guarantees, and contingencies, as disclosed herein and in Note 17 to our 2023 consolidated financial statements, we had no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our financial condition, results of operations or liquidity. Our cash flows from operations, borrowing availability and overall liquidity are subject to risks and uncertainties. See “Information Concerning Forward-Looking Statements” at the beginning of this report.

Contractual Obligations

Our contractual obligations and commitments as of December 31, 2023 are comprised of principal payments on debt, interest payments on debt, operating leases, pension benefit plan and purchase obligations.

Operating leases are primarily comprised of leased office space throughout the world. As leases expire, we do not anticipate difficulty in negotiating renewals or finding other satisfactory space if the premise becomes unavailable. In certain circumstances, we may have unused space and may seek to sublet such space to third parties, depending upon the demands for office space in the locations involved. See Note 15 to our 2023 consolidated financial statements for additional discussion of these operating lease obligations.

Defined benefit pension plan obligations include estimates of our minimum funding requirements pursuant to the Employee Retirement Income Security Act and other regulations. We may make additional discretionary contributions. See Note 13 to our 2023 consolidated financial statements for additional information required to be disclosed relating to our defined benefit pension plan.

Purchase obligations are defined as agreements to purchase goods and services that are enforceable and legally binding on us, and that specifies all significant terms, including the goods to be purchased or services to be rendered, the price at which the goods or services are to be rendered, and the timing of the transactions. Most of our purchase obligations are related to purchases of information technology services, marketing arrangements or other service contracts. We had no other cash requirements from known contractual obligations and commitments that have, or are reasonably likely to have, a current or

future material effect on the Company’s financial condition, results of operations, or liquidity. See Note 17 to our 2023 consolidated financial statements for additional discussion of these contractual obligations.

Outlook - We believe that we have sufficient capital and access to additional capital to meet our short- and long-term cash flow needs.

Critical Accounting Estimates

Our consolidated financial statements are prepared in accordance with U.S. GAAP, which require management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. These accounting principles require us to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenues and expenses, and the disclosure of contingent assets and liabilities at the date of our consolidated financial statements. We periodically evaluate our estimates and assumptions, including those relating to the valuation of goodwill and other intangible assets, right-of-use assets, investments (including our IRC Section 45 investments), income taxes, revenue recognition, deferred costs, stock-based compensation, claims handling obligations, retirement plans, litigation and contingencies. We base our estimates on historical experience and various assumptions that we believe to be reasonable based on specific circumstances. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein. We believe the following significant accounting estimates may involve a higher degree of judgment and complexity. See Note 1 to our 2023 consolidated financial statements for other significant accounting policies. See Note 2 to our 2023 consolidated financial statements for a discussion of recently issued accounting pronouncements and their impact or potential future impact on the our financial results, if determinable.

Revenue Recognition

Description

The primary source of revenues for our brokerage services is commissions from underwriting enterprises, based on a percentage of premiums paid by our clients, or fees received from clients based on an agreed level of service usually in lieu of commissions. These commissions and fees revenues are substantially recognized at a point in time on the effective date of the associated policies when control of the policy transfers to the client, as well as deferring certain revenues to reflect delivery of services over the contract period. Whether we are paid a commission or a fee, the vast majority of our services are associated with the placement of an insurance (or insurance-like) contract. Accordingly, we recognize approximately 80% of our commission and fee revenues on the effective date of the underlying insurance contract. The amount of revenue we recognize is based on our costs to provide our services up and through that effective date, including an appropriate estimate of our profit margin on a portfolio basis. Based on the proportion of additional services we provide in each period after the effective date of the insurance contract, including an appropriate estimate of our profit margin, we recognize approximately 15% of our commission and fee revenues in the first three months, and the remaining 5% thereafter.

For supplemental revenues certain underwriting enterprises may pay us additional revenues for the volume of premium placed with them and for insights into our sales pipeline, our sales capabilities or our risk selection knowledge. These amounts are in excess of the commission and fee revenues discussed above, and not all business we place with underwriting enterprises is eligible for supplemental revenues. Unlike contingent revenues, discussed below, these revenues are primarily a fixed amount or fixed percentage of premium of the underlying eligible insurance contracts. For supplemental revenue contracts based on a fixed percentage of premium, our obligation to the underwriting enterprise is substantially completed upon the effective date of the underlying insurance contract and revenue is fully earned at that time. For supplemental revenue contracts based on a fixed amount, revenue is recognized ratably over the contract period consistent with the performance of our obligations, almost always over an annual term.

For contingent revenues certain underwriting enterprises may pay us additional revenues for our sales capabilities, our risk selection knowledge, or our administrative efficiencies. These amounts are in excess of the commission or fee revenues discussed above, and not all business we place with participating underwriting enterprises is eligible for contingent revenues. Unlike supplemental revenues, also discussed above, these revenues are variable, generally based on growth, the loss experience of the underlying insurance contracts, and/or our efficiency in processing the business. We generally operate under calendar year contracts, but we do not receive these revenues from the underwriting enterprises until the following calendar year, generally in the first and second quarters, after verification of the performance indicators outlined in the contracts. Accordingly, during each reporting period, we must make our best estimate of amounts we have earned using historical averages and other factors to project such revenues.

See Revenue Recognition and Contracts with Customers in Notes 1 and 4 to our 2023 consolidated financial statements.

Judgments and Uncertainties

For commissions and fees, these periods may be different than the underlying premium payment patterns of the insurance contracts, but the vast majority of our services are fully provided within one year of the insurance contract effective date. For supplemental and contingent commissions, we base our estimates each period on a contract-by-contract basis where available. In certain cases, it is impractical to assess a very large number of smaller contingent revenue contracts, so we use a historical portfolio estimate in aggregate. Because our expectation of the ultimate contingent revenue amounts to be earned can vary from period to period, especially in contracts sensitive to loss ratios, our estimates might change significantly from quarter to quarter. For example, in circumstances where our revenues are dependent on a full calendar year loss ratio, adverse loss experience in the fourth quarter could not only negate revenue earnings in the fourth quarter, but also trigger the need to reverse revenues previously recognized during the prior quarters. Variable consideration is recognized when we conclude, based on all the facts and information available at the reporting date, that it is probable that a significant revenue reversal will not occur in future periods.

Effect if Actual Results Differ From Assumptions

We do not believe there is a reasonable likelihood there will be a material change in the estimates or assumptions used to recognize revenue. As noted above, estimates are made based on historical experience and other factors. The vast majority of our brokerage contracts and service understandings are for a period of one year or less, and historically, the difference between actual experience compared to estimated performance has not been significant to the quarterly or annual financial statements. We have not made any material changes in the accounting methodology used to recognize revenue during the past three fiscal years.

Income Taxes

Description

We estimate total income tax expense based on statutory tax rates and tax planning opportunities available to us in various jurisdictions in which we earn income. Income tax includes an estimate for withholding taxes on earnings of foreign subsidiaries expected to be remitted to the U.S. but does not include an estimate for taxes on earnings considered to be indefinitely invested in the foreign subsidiary. Deferred income taxes are recognized for the future tax effects of temporary differences between financial and income tax reporting using tax rates in effect for the years in which the differences are expected to reverse. Valuation allowances are recorded when it is likely a tax benefit will not be realized for a deferred tax asset. We record unrecognized tax benefit liabilities for known or anticipated tax issues based on our analysis of whether, and the extent to which, additional taxes will be due. See Income Taxes in Notes 1 and 19 to our 2023 consolidated financial statements.

Judgments and Uncertainties

Changes in projected future earnings could affect the recorded valuation allowances in the future. Our calculations related to income taxes contain uncertainties due to judgment used to calculate tax liabilities in the application of complex tax regulations across the tax jurisdictions where we operate. Our analysis of unrecognized tax benefits contains uncertainties based on judgment used to apply the more likely than not recognition and measurement thresholds.

Effect if Actual Results Differ From Assumptions

Changes in tax laws and rates could affect recorded deferred tax assets and liabilities in the future. Other than those potential impacts, we do not believe there is a reasonable likelihood there will be a material change in the tax related balances or valuation allowances. However, due to the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from the current estimate of the tax liabilities. To the extent we prevail in matters for which unrecognized tax benefit liabilities have been established, or are required to pay amounts in excess of our recorded unrecognized tax benefit liabilities, our effective tax rate in a given financial statement period could be materially affected. An unfavorable tax settlement would require use of our cash and generally result in an increase in our effective tax rate in the period of resolution. A favorable tax settlement would generally be recognized as a reduction in our effective tax rate in the period of resolution.

Impairment of Goodwill

Description

Goodwill is evaluated for impairment by first performing a qualitative assessment to determine whether a quantitative goodwill test is necessary. If it is determined, based on qualitative factors, the fair value of the reporting unit may be more likely than not less than its carrying amount or if significant changes to macro-economic factors related to the reporting unit have occurred that could materially impact fair value, a quantitative goodwill impairment test would be required. The quantitative test compares the fair value of a reporting unit with its carrying amount. Additionally, we can elect to forgo the qualitative assessment and perform the quantitative test. Upon performing the quantitative test, if the carrying value of the reporting unit exceeds its fair value, an impairment loss is recognized in an amount equal to that excess, not to exceed the carrying amount of goodwill. We have elected to make the first day of the fourth quarter the annual impairment assessment date for goodwill. However, we could

be required to evaluate the recoverability of goodwill outside of the required annual assessment if, among other things, we experience disruptions to the business, unexpected significant declines in operating results, divestiture of a significant component of the business or a sustained decline in market capitalization.

Judgments and Uncertainties

We estimate the fair value of our reporting units considering the use of various valuation techniques, with the primary technique being an income approach (discounted cash flow method) and another technique being a market approach (guideline public company method), which use significant unobservable inputs, or Level 3 inputs, as defined by the fair value hierarchy. We include assumptions about revenue growth, operating margins, discount rates and valuation multiples which consider our budgets, business plans, economic projections and marketplace data, and are believed to reflect market participant views which would exist in an exit transaction. Assumptions are also made for varying perpetual growth rates for periods beyond the long-term business plan period. Generally, we utilize operating margin assumptions based on future expectations, operating margins historically realized in the reporting units’ industries and industry marketplace valuation multiples. See Intangible Assets in Notes 1 and 7 to our 2023 consolidated financial statements.

Our impairment analysis contains uncertainties due to uncontrollable events that could positively or negatively impact the anticipated future economic and operating conditions.

Effect if Actual Results Differ From Assumptions

We have not made material changes in the accounting methodology used to evaluate impairment of goodwill during the last three years. During fiscal 2023, 2022 and 2021, all of our material reporting units passed the impairment analysis.

Some of the inherent estimates and assumptions used in determining fair value of the reporting units and indefinite life intangible assets are outside the control of management, including interest rates, cost of capital, tax rates, market EBITDAC comparables and credit ratings. While we believe we have made reasonable estimates and assumptions to calculate the fair value of the reporting units and indefinite life intangibles, it is possible a material change could occur. If our actual results are not consistent with our estimates and assumptions used to calculate fair value, it could result in material impairments of our goodwill.

Impairment of Amortizable Intangible Assets

Description

Amortizable intangible assets are evaluated for impairment whenever events or changes in circumstances indicate the carrying value may not be recoverable. Examples include a significant adverse change in the extent or manner in which we use the asset, a change in its physical condition, or an unexpected change in financial performance.

When evaluating amortizable intangible assets for impairment, we compare the carrying value of the asset to the asset’s estimated undiscounted future cash flows. An impairment is indicated if the estimated future cash flows are less than the carrying value of the asset. The impairment is the excess of the carrying value over the fair value of the asset.

We recorded impairment charges related to amortizable intangible assets of $3.5 million, $2.0 million, and $17.6 million in 2023, 2022 and 2021, respectively. See Intangible Assets in Notes 1 and 7 to our 2023 consolidated financial statements.

Judgments and Uncertainties

Our impairment analysis contains uncertainties due to judgment in assumptions, including useful lives and intended use of assets, observable market valuations, forecasted revenue growth, operating margins and discount rates based on budgets, business plans, economic projections, anticipated future cash flows and marketplace data that reflects the risk inherent in future cash flows to determine fair value.

Effect if Actual Results Differ From Assumptions

We have not made any material changes in the accounting methodology used to evaluate the impairment of amortizable intangible assets during the last three fiscal years. We do not believe there is a reasonable likelihood there will be a material change in the estimates or assumptions used to calculate impairments or useful lives of amortizable intangible assets. However, if actual results are not consistent with our estimates and assumptions used to calculate estimated future cash flows, we may be exposed to impairment losses that could be material.

Earnout Obligations

Description

Substantially all of the purchase agreements related to the acquisitions we do contain provisions for potential earnout obligations. The amounts recorded as earnout payables, which are primarily based upon the terms of the purchase agreements and the estimated future operating results of the acquired entities over a two- to three-year period subsequent to the acquisition date, are measured at fair value as of the acquisition date and are included on that basis in the recorded purchase price consideration. We will record subsequent changes in these estimated earnout obligations, including the accretion of discount, in our consolidated statement of earnings when incurred.

Judgments and Uncertainties

The fair value of these earnout obligations is based on the present value of the expected future payments to be made to the sellers of the acquired entities in accordance with the provisions outlined in the respective purchase agreements, which is a Level 3 fair value measurement. In determining fair value, we estimate the acquired entity’s future performance using financial projections developed by management for the acquired entity and market participant assumptions that were derived for revenue growth and/or profitability. Revenue growth rates generally ranged from 5.0% to 20.0% for our 2023 acquisitions. We estimated future payments using the earnout formula and performance targets specified in each purchase agreement and the financial projections just described. We then discounted these payments to present value using a risk-adjusted rate that takes into consideration market based rates of return that reflect the ability of the acquired entity to achieve the targets. The discount rates generally ranged from 6.7% to 9.6% for our 2023 acquisitions.

Effect if Actual Results Differ From Assumptions

While management believes those expectations and assumptions are reasonable, they are inherently uncertain. Changes in financial projections, market participant assumptions for revenue growth and/or profitability, or the risk-adjusted discount rate, would result in a change in the fair value of recorded earnout obligations. See Note 3 to our 2023 consolidated financial statements for additional discussion on our 2023 business combinations.

Business Combinations

Description

We account for acquired businesses using the acquisition method of accounting, which requires that once control of a business is obtained, 100% of the assets acquired and liabilities assumed, including amounts attributed to noncontrolling interests, be recorded at the date of acquisition at their respective fair values. Any excess of the purchase price over the estimated fair values of the net assets acquired is recorded as goodwill.

We use various models to determine the value of assets acquired and liabilities assumed such as discounted cash flow to value amortizable intangible assets.

For significant acquisitions we may use independent third-party valuation specialists to assist us in determining the fair value of assets acquired and liabilities assumed. See Note 3 to our 2023 consolidated financial statements for additional discussion on our 2023 business combinations.

Judgments and Uncertainties

Significant judgment is often required in estimating the fair value of assets acquired and liabilities assumed, particularly intangible assets. We make estimates and assumptions about projected future cash flows including sales growth, operating margins, attrition rates, and discount rates based on historical results, business plans, expected synergies, perceived risk and marketplace data considering the perspective of marketplace participants.

Determining the useful life of an intangible asset also requires judgment as different types of intangible assets will have different useful lives.

Effect if Actual Results Differ From Assumptions

While management believes those expectations and assumptions are reasonable, they are inherently uncertain. Unanticipated market or macroeconomic events and circumstances may occur, which could affect the accuracy or validity of the estimates and assumptions, which could result in subsequent impairments.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk.

We are exposed to various market risks in our day to day operations. Market risk is the potential loss arising from adverse changes in market rates and prices, such as interest and foreign currency exchange rates and equity prices. The following analyses present the hypothetical loss in fair value of the financial instruments held by us at December 31, 2023 that are sensitive to changes in interest rates. The range of changes in interest rates used in the analyses reflects our view of changes that are

reasonably possible over a one‑year period. This discussion of market risks related to our consolidated balance sheet includes estimates of future economic environments caused by changes in market risks. The effect of actual changes in these market risk factors may differ materially from our estimates. In the ordinary course of business, we also face risks that are either nonfinancial or unquantifiable, including credit risk and legal risk. These risks are not included in the following analyses.

Our invested assets are primarily held as cash and cash equivalents, which are subject to various market risk exposures such as interest rate risk. The fair value of our portfolio of cash and cash equivalents as of December 31, 2023 approximated its carrying value due to its short-term duration. We estimated market risk as the potential decrease in fair value resulting from a hypothetical one-percentage point increase in interest rates for the instruments contained in the cash and cash equivalents investment portfolio. The resulting fair values were not materially different from their carrying values at December 31, 2023.

As of December 31, 2023, we had $7,498.0 million of borrowings outstanding under our various senior notes and note purchase agreements. The aggregate estimated fair value of these borrowings at December 31, 2023 was $6,840.2 million due to the long-term duration and fixed interest rates associated with these debt obligations. No active or observable market exists for our private placement long‑term debt. Therefore, the estimated fair value of this debt is based on the income valuation approach, which is a valuation technique that converts future amounts (for example, cash flows or income and expenses) to a single current (that is, discounted) amount. The fair value measurement is determined on the basis of the value indicated by current market expectations about those future amounts. Because our debt issuances generate a measurable income stream for each lender, the income approach was deemed to be an appropriate methodology for valuing the private placement long-term debt. The methodology used calculated the original deal spread at the time of each debt issuance, which was equal to the difference between the yield of each issuance (the coupon rate) and the equivalent benchmark treasury yield at that time. The market spread as of the valuation date was calculated, which is equal to the difference between an index for investment grade insurers and the equivalent benchmark treasury yield today. An implied premium or discount to the par value of each debt issuance based on the difference between the origination deal spread and market as of the valuation date was then calculated. The index we relied on to represent investment graded insurers was the Bloomberg Valuation Services (BVAL) U.S. Insurers BBB index. This index is comprised primarily of insurance brokerage firms and was representative of the industry in which we operate. For the purpose of our analysis, the average BBB rate was assumed to be the appropriate borrowing rate for us.

We estimated market risk as the potential impact on the value of the debt recorded in our consolidated balance sheet based on a hypothetical one-percentage point change in our weighted average borrowing rate as of December 31, 2023. A one-percentage point decrease would result in an estimated fair value of $7,420.6 million, or $77.4 million less than their current carrying value. A one‑percentage point increase would result in an estimated fair value of $6,340.6 million, or $1,157.4 million less than their current carrying value.

As of December 31, 2023, we had $245.0 million of borrowings outstanding under our Credit Agreement and $289.0 million of borrowings outstanding under our Premium Financing Debt Facility. The fair value of these borrowings approximate their carrying value due to their short-term duration and variable interest rates associated with these debt obligations. Market risk is estimated as the potential increase in fair value resulting from a hypothetical one-percentage point decrease in our weighted average short-term borrowing rate at December 31, 2023 and the resulting fair values are not materially different from their carrying value.

We are subject to foreign currency exchange rate risk primarily from one of our larger U.K. based brokerage subsidiaries that incurs expenses denominated primarily in British pounds while receiving a substantial portion of its revenues in U.S. dollars. In addition, we are subject to foreign currency exchange rate risk from our Australian, Canadian, Indian, Jamaican, New Zealand, Norwegian, Singaporean and various Caribbean and Latin American operations because we transact business in their local denominated currencies. Foreign currency gains (losses) related to this market risk are recorded in earnings before income taxes as transactions occur. Assuming a hypothetical adverse change of 10% in the average foreign currency exchange rate for 2023 (a weakening of the U.S. dollar), earnings before income taxes would have increased by approximately $22.6 million. Assuming a hypothetical favorable change of 10% in the average foreign currency exchange rate for 2023 (a strengthening of the U.S. dollar), earnings before income taxes would have decreased by approximately $45.4 million. We are also subject to foreign currency exchange rate risk associated with the translation of local currencies of our foreign subsidiaries into U.S. dollars. We manage the balance sheets of our foreign subsidiaries, where practical, such that foreign liabilities are matched with equal foreign assets, maintaining a “balanced book” which minimizes the effects of currency fluctuations. However, our consolidated financial position is exposed to foreign currency exchange risk related to intra-entity loans between our U.S. based subsidiaries and our non-U.S. based subsidiaries that are denominated in the respective local foreign currency. A transaction that is in a foreign currency is first remeasured at the entity’s functional (local) currency, where applicable, (which is an adjustment to consolidated earnings) and then translated to the reporting (U.S. dollar) currency (which is an adjustment to consolidated stockholders’ equity) for consolidated reporting purposes. If the transaction is already denominated in the foreign entity’s functional currency, only the translation to U.S. dollar reporting is necessary. The remeasurement process required by U.S. GAAP for such foreign currency loan transactions will give rise to a consolidated unrealized foreign exchange gain or loss, which could be material, that is recorded in accumulated other comprehensive loss.

Historically, we have not entered into derivatives or other similar financial instruments for trading or speculative purposes. However, with respect to managing foreign currency exchange rate risk in India, Norway and the U.K., we have periodically purchased financial instruments to minimize our exposure to this risk. During 2023, 2022 and 2021, we had several monthly put/call options in place with an external financial institution that were designed to hedge a significant portion of our future Norway and the U.K. currency revenues through various future payment dates. In addition, during 2023, 2022 and 2021, we had several monthly put/call options in place with an external financial institution that were designed to hedge a significant portion of our Indian currency disbursements through various future payment dates. Although these hedging strategies were designed to protect us against significant India, Norway and the U.K. currency exchange rate movements, we are still exposed to some foreign currency exchange rate risk for the portion of the payments and currency exchange rate that are unhedged. All of these hedges are accounted for in accordance with ASC Topic 815, “Derivatives and Hedging”, and periodically are tested for effectiveness in accordance with such guidance. In the scenario where such hedge does not pass the effectiveness test, the hedge will be re-measured at the stated point and the appropriate loss, if applicable, would be recognized. For the year ended December 31, 2023 there has been no such effect on our consolidated financial presentation. The impact of these hedging strategies was not material to our consolidated financial statements for 2023, 2022 and 2021. See Note 21 to our 2023 consolidated financial statements for the changes in fair value of these derivative instruments reflected in comprehensive earnings in 2023, 2022 and 2021.

Item 8. Financial Statements and Supplementary Data.

Arthur J. Gallagher & Co.

Consolidated Statement of Earnings

(In millions, except per share data)

	Year Ended December 31,
	2023			2022		2021
Commissions	$	5,865.0		$	5,187.4	$	4,132.3
Fees		3,144.7			2,567.7		2,264.1
Supplemental revenues		314.2			284.7		248.7
Contingent revenues		235.3			207.3		188.0
Interest income, premium finance revenues and other income		367.3			150.0		102.5
Revenues from clean coal activities		—			23.0		1,140.8
Revenues before reimbursements		9,926.5			8,420.1		8,076.4
Reimbursements		145.4			130.5		133.0
Total revenues		10,071.9			8,550.6		8,209.4
Compensation		5,681.2			4,799.8		3,927.5
Operating		1,689.7			1,330.9		1,072.4
Reimbursements		145.4			130.5		133.0
Cost of revenues from clean coal activities		—			22.9		1,173.2
Interest		296.7			256.9		226.1
Loss on extinguishment of debt		—			—		16.2
Depreciation		165.2			144.7		151.2
Amortization		531.3			454.9		415.1
Change in estimated acquisition earnout payables		377.3			83.0		119.6
Total expenses		8,886.8			7,223.6		7,234.3
Earnings before income taxes		1,185.1			1,327.0		975.1
Provision for income taxes		219.1			211.0		20.1
Net earnings		966.0			1,116.0		955.0
Net earnings (loss) attributable to noncontrolling interests		(3.5	)		1.8		48.2
Net earnings attributable to controlling interests	$	969.5		$	1,114.2	$	906.8
Basic net earnings per share	$	4.51		$	5.30	$	4.47
Diluted net earnings per share		4.42			5.19		4.37
Dividends declared per common share		2.20			2.04		1.92

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Consolidated Statement of Comprehensive Earnings

(In millions)

	Year Ended December 31,
	2023			2022			2021
Net earnings	$	966.0		$	1,116.0		$	955.0
Change in pension liability, net of taxes		12.3			(12.3	)		19.0
Foreign currency translation, net of taxes		257.8			(511.8	)		(122.3	)
Change in fair value of derivative instruments, net of taxes		78.2			109.8			20.8
Comprehensive earnings		1,314.3			701.7			872.5
Comprehensive earnings (loss) attributable to noncontrolling interests		(2.5	)		1.6			49.5
Comprehensive earnings attributable to controlling interests	$	1,316.8		$	700.1		$	823.0

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Consolidated Balance Sheet

(In millions)

	December 31,
	2023			2022
Cash and cash equivalents	$	971.5		$	738.4
Fiduciary assets		26,907.9			18,236.7
Accounts receivable, net		3,786.6			2,911.1
Other current assets		450.1			399.0
Total current assets		32,116.1			22,285.2
Fixed assets - net		726.4			576.2
Deferred income taxes		1,132.3			1,299.0
Other noncurrent assets		1,131.8			989.8
Right-of-use assets		400.3			346.7
Goodwill - net		11,475.6			9,489.4
Amortizable intangible assets - net		4,633.3			3,372.1
Total assets	$	51,615.8		$	38,358.4
Fiduciary liabilities	$	26,907.9		$	18,236.7
Accrued compensation and other current liabilities		2,553.1			2,003.3
Deferred revenue - current		644.7			546.7
Premium financing debt		289.0			241.9
Corporate related borrowings - current		670.0			310.0
Total current liabilities		31,064.7			21,338.6
Corporate related borrowings - noncurrent		7,006.0			5,562.8
Deferred revenue - noncurrent		61.5			62.6
Lease liabilities - noncurrent		352.2			300.4
Other noncurrent liabilities		2,316.1			1,903.8
Total liabilities		40,800.5			29,168.2
Stockholders' equity:
Common stock - authorized 400.0 shares; issued and outstanding 216.7<br> shares in 2023 and 211.9 shares in 2022		216.7			211.9
Capital in excess of par value		7,297.8			6,509.9
Retained earnings		4,052.9			3,562.2
Accumulated other comprehensive loss		(792.1	)		(1,140.4	)
Stockholders' equity attributable to controlling interests		10,775.3			9,143.6
Stockholders' equity attributable to noncontrolling interests		40.0			46.6
Total stockholders' equity		10,815.3			9,190.2
Total liabilities and stockholders' equity	$	51,615.8		$	38,358.4

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Consolidated Statement of Cash Flows

(In millions)

	Year Ended December 31,
	2023			2022			2021
Cash flows from operating activities:
Net earnings	$	966.0		$	1,116.0		$	955.0
Adjustments to reconcile net earnings to net cash provided by operating<br> activities:
Net gain on investments and other		(8.4	)		(11.0	)		(17.0	)
Loss on extinguishment of debt		—			—			9.7
Depreciation and amortization		696.5			599.6			566.3
Change in estimated acquisition earnout payables		377.3			83.0			119.6
Amortization of deferred compensation and restricted stock		105.1			85.4			68.9
Stock-based and other noncash compensation expense		31.4			24.4			13.4
Payments on acquisition earnouts in excess of original estimates		(68.4	)		(81.7	)		(29.6	)
Provision for deferred income taxes		43.1			(209.0	)		(184.0	)
Effect of changes in foreign exchange rates		10.3			(34.0	)		2.3
Net change in accounts receivable, net		(503.5	)		(319.6	)		(172.3	)
Net change in deferred revenue		49.0			29.3			23.1
Net change in other current assets		(107.3	)		(71.7	)		(102.8	)
Net change in accrued compensation and other accrued liabilities		462.9			119.0			217.3
Net change in income taxes payable		(77.7	)		49.9			(123.8	)
Net change in other noncurrent assets and liabilities		55.4			10.4			46.3
Net cash provided by operating activities		2,031.7			1,390.0			1,392.4
Cash flows from investing activities:
Capital expenditures		(193.6	)		(182.7	)		(128.6	)
Cash paid for acquisitions, net of cash and restricted cash acquired		(3,041.9	)		(764.9	)		(3,250.9	)
Net proceeds from sales of operations/books of business		9.9			11.0			15.7
Net funding of investment transactions		5.5			1.0			(1.1	)
Net funding of premium finance loans		(72.9	)		(69.2	)		(66.8	)
Net cash used by investing activities		(3,293.0	)		(1,004.8	)		(3,431.7	)
Cash flows from financing activities:
Payments on acquisition earnouts		(97.8	)		(106.5	)		(137.3	)
Proceeds from issuance of common stock		120.2			123.1			1,546.7
Payments to noncontrolling interests		(2.4	)		(3.6	)		(39.1	)
Dividends paid		(473.6	)		(429.5	)		(392.0	)
Net change in fiduciary assets and liabilities		1,296.5			735.4			311.7
Net borrowings on premium financing debt facility		41.7			25.3			37.0
Borrowings on line of credit facility		3,795.0			2,570.0			1,280.0
Repayments on line of credit facility		(3,610.0	)		(2,555.0	)		(1,235.0	)
Net borrowings of corporate related long-term debt		1,634.0			(201.5	)		1,677.0
Debt acquisition costs		(17.7	)		2.2			(21.3	)
Settlements on terminated interest rate swaps		188.0			52.7			(31.9	)
Net cash provided by financing activities		2,873.9			212.6			2,995.8
Effect of changes in foreign exchange rates on cash, cash<br> equivalents, restricted cash and fiduciary cash		(33.5	)		(99.9	)		(64.5	)
Net increase in cash, cash equivalents, restricted cash and fiduciary cash		1,579.1			497.9			892.0
Cash, cash equivalents, restricted cash and fiduciary cash at<br> beginning of year		4,964.2			4,466.3			3,574.3
Cash, cash equivalents, restricted cash and fiduciary cash at end of year	$	6,543.3		$	4,964.2		$	4,466.3

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Consolidated Statement of Stockholders’ Equity

(In millions)

				Capital in						Accumulated Other
				Excess of			Retained			Comprehensive			Noncontrolling
		Amount		Par Value			Earnings			Loss			Interests			Total
Balance at December 31, 2020	193.7	$	193.7	$	4,264.4		$	2,371.7		$	(643.6	)	$	46.5		$	6,232.7
Net earnings	—		—		—			906.8			—			48.2			955.0
Net purchase of subsidiary shares from noncontrolling interests	—		—		—			—			—			(6.0	)		(6.0	)
Dividends paid to noncontrolling interests	—		—		—			—			—			(38.3	)		(38.3	)
Net change in pension asset/liability, net of taxes of 4.6 million	—		—		—			—			19.0			—			19.0
Foreign currency translation	—		—		—			—			(122.3	)		1.3			(121.0	)
Change in fair value of derivative instruments, net of taxes of 7.4 million	—		—		—			—			20.8			—			20.8
Compensation expense related to stock option plan grants	—		—		17.5			—			—			—			17.5
Common stock issued in:
Thirty-seven purchase transactions	1.7		1.7		249.6			—			—			—			251.3
Stock option plans	1.4		1.4		66.2			—			—			—			67.6
Employee stock purchase plan	0.4		0.4		40.8			—			—			—			41.2
Shares issued to benefit plans	0.6		0.6		70.8			—			—			—			71.4
Deferred compensation and restricted stock	0.4		0.4		6.5			—			—			—			6.9
Stock issuance from public offering	10.3		10.3		1,427.6			—			—			—			1,437.9
Other compensation expense	—		—		0.3			—			—			—			0.3
Cash dividends declared on common stock	—		—		—			(396.2	)		—			—			(396.2	)
Balance at December 31, 2021	208.5		208.5		6,143.7			2,882.3			(726.1	)		51.7			8,560.1
Net earnings	—		—		—			1,114.2			—			1.8			1,116.0
Net purchase of subsidiary shares from noncontrolling interests	—		—		—			—			—			(3.2	)		(3.2	)
Dividends paid to noncontrolling interests	—		—		—			—			—			(3.5	)		(3.5	)
Net change in pension asset/liability, net of taxes of (3.0) million	—		—		—			—			(12.3	)		—			(12.3	)
Foreign currency translation	—		—		—			—			(511.8	)		(0.2	)		(512.0	)
Change in fair value of derivative instruments, net of taxes of 39.3 million	—		—		—			—			109.8			—			109.8
Compensation expense related to stock option plan grants	—		—		27.9			—			—			—			27.9
Common stock issued in:
Eighteen purchase transactions	0.9		0.9		164.6			—			—			—			165.5
Stock option plans	1.4		1.4		74.7			—			—			—			76.1
Employee stock purchase plan	0.3		0.3		47.3			—			—			—			47.6
Shares issued to benefit plans	0.5		0.5		73.9			—			—			—			74.4
Deferred compensation and restricted stock	0.3		0.3		(22.2	)		—			—			—			(21.9	)
Cash dividends declared on common stock	—		—		—			(434.3	)		—			—			(434.3	)
Balance at December 31, 2022	211.9	$	211.9	$	6,509.9		$	3,562.2		$	(1,140.4	)	$	46.6		$	9,190.2

All values are in US Dollars.

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Consolidated Statement of Stockholders’ Equity (continued)

(In millions)

				Capital in					Accumulated Other
				Excess of		Retained			Comprehensive			Noncontrolling
		Amount		Par Value		Earnings			Loss			Interests			Total
Balance at December 31, 2022	211.9	$	211.9	$	6,509.9	$	3,562.2		$	(1,140.4	)	$	46.6		$	9,190.2
Net earnings	—		—		—		969.5			—			(3.5	)		966.0
Net purchase of subsidiary shares from noncontrolling interests	—		—		—		—			—			(3.1	)		(3.1	)
Dividends paid to noncontrolling interests	—		—		—		—			—			(1.0	)		(1.0	)
Net change in pension asset/liability, net of taxes of 3.0 million	—		—		—		—			12.3			—			12.3
Foreign currency translation	—		—		—		—			257.8			1.0			258.8
Change in fair value of derivative instruments, net of taxes of 26.8 million	—		—		—		—			78.2			—			78.2
Compensation expense related to stock option plan grants	—		—		33.5		—			—			—			33.5
Common stock issued in:
Twenty-three purchase transactions	2.5		2.5		523.3		—			—			—			525.8
Stock option plans	1.2		1.2		64.0		—			—			—			65.2
Employee stock purchase plan	0.3		0.3		54.7		—			—			—			55.0
Shares issued to benefit plans	0.4		0.4		84.2		—			—			—			84.6
Deferred compensation and restricted stock	0.4		0.4		28.2		—			—			—			28.6
Cash dividends declared on common stock	—		—		—		(478.8	)		—			—			(478.8	)
Balance at December 31, 2023	216.7	$	216.7	$	7,297.8	$	4,052.9		$	(792.1	)	$	40.0		$	10,815.3

All values are in US Dollars.

See notes to consolidated financial statements.

Arthur J. Gallagher & Co.

Notes to Consolidated Financial Statements

December 31, 2023

1. Summary of Significant Accounting Policies

Terms Used in Notes to Consolidated Financial Statements

ASC - Accounting Standards Codification.

ASU - Accounting Standards Update.

FASB - The Financial Accounting Standards Board.

GAAP - United States (U.S.) generally accepted accounting principles.

IRC - Internal Revenue Code.

IRS - Internal Revenue Service.

Topic 606 - ASU No. 2014-09, Revenue from Contracts with Customers.

Underwriting enterprises - Insurance companies, reinsurance companies and various other forms of risk-taking entities, including intermediaries of underwriting enterprises.

VIE - Variable interest entity.

Nature of Operations

Arthur J. Gallagher & Co. and its subsidiaries, collectively referred to herein as we, our, us or the company, provide insurance brokerage, consulting and third party claims settlement and administration services to both domestic and international entities. We have three reportable segments: brokerage, risk management and corporate. Our brokers, agents and administrators act as intermediaries between underwriting enterprises and our clients.

Our brokerage segment operations provide brokerage and consulting services to entities of all types, including commercial, nonprofit, public sector entities and to a lesser extent, individuals, in the areas of insurance and reinsurance placements, risk of loss management and management of employer sponsored benefit programs. Our risk management segment operations provide contract claim settlement, claim administration, loss control services and risk management consulting for commercial, nonprofit, captive and public sector entities, and various other organizations that choose to self-insure property/casualty coverages or choose to use a third-party claims management organization rather than the claim services provided by underwriting enterprises. The corporate segment reports the financial information related to our debt and other corporate costs, legacy clean energy investments, external acquisition‑related expenses and the impact of foreign currency translation. Legacy clean energy investments consist of our investments in limited liability companies that own or have owned 35 commercial clean coal production facilities that produced refined coal using Chem-Mod LLC’s proprietary technologies. We believe these operations produced refined coal that qualifies for tax credits under IRC Section 45.

We do not assume underwriting risk on a net basis, other than with respect to de minimis amounts necessary to provide minimum or regulatory capital insurance to organize captives, pools, specialized underwriters or risk-retention groups. Rather, capital necessary for covering losses is provided by underwriting enterprises.

Investment income and other revenues are primarily generated from our premium financing operations, our invested cash and restricted cash we hold on behalf of our clients, as well as clean energy investments. In addition, our share of the net earnings related to partially owned entities that are accounted for using the equity method is included in investment income.

Arthur J. Gallagher & Co., a global insurance brokerage, risk management and consulting services firm, is headquartered in Rolling Meadows, Illinois. The company provides these services in approximately 130 countries around the world through its owned operations and a network of correspondent brokers and consultants.

Basis of Presentation

The accompanying consolidated financial statements include our accounts and all of our majority-owned subsidiaries (50% or greater ownership). Substantially all of our investments in partially owned entities in which our ownership is less than 50% are accounted for using the equity method based on the legal form of our ownership interest and the applicable ownership percentage of the entity. However, in situations where a less than 50%-owned investment has been determined to be a VIE and we are deemed to be the primary beneficiary in accordance with the variable interest model of consolidation, we will consolidate the investment into our consolidated financial statements. For partially owned entities accounted for using the equity method, our share of the net earnings of these entities is included in consolidated net earnings. All material intercompany accounts and transactions have been eliminated in consolidation.

In the preparation of our consolidated financial statements as of December 31, 2023, management evaluated all material subsequent events or transactions that occurred after the balance sheet date through the date on which the financial statements were issued for potential recognition and/or disclosure in the notes therein.

Use of Estimates

The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These accounting principles require us to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenues and expenses, and the disclosure of contingent assets and liabilities at the date of our consolidated financial statements. We periodically evaluate our estimates and assumptions, including those relating to the valuation of goodwill and other intangible assets, right-of-use assets, investments (including our IRC Section 45 investments), income taxes, revenue recognition, deferred costs, stock-based compensation, claims handling obligations, retirement plans, litigation and contingencies. We base our estimates on historical experience and various assumptions that we believe to be reasonable based on specific circumstances. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.

Revenue Recognition

Our revenues are derived from commissions and fees as primarily specified in a written contract, or unwritten business understanding, with our clients or underwriting enterprises. We also recognize investment income over time from our invested assets and invested assets we hold on behalf of our clients or underwriting enterprises.

BROKERAGE SEGMENT

Our brokerage segment generates revenues by:

(i) Identifying, negotiating and placing all forms of insurance or reinsurance coverage, as well as providing risk-shifting, risk-sharing and risk-mitigation consulting services, principally related to property/casualty, life, health, welfare and disability insurance. We also provide these services through, or in conjunction with, other unrelated agents and brokers, consultants and management advisors;

(ii) Acting as an agent or broker for multiple underwriting enterprises by providing services such as sales, marketing, selecting, negotiating, underwriting, servicing and placing insurance coverage on their behalf;

(iii) Providing consulting services related to health and welfare benefits, voluntary benefits, executive benefits, compensation, retirement planning, institutional investment and fiduciary, actuarial, compliance, private insurance exchange, human resource technology, communications and benefits administration; and

(iv) Providing management and administrative services to captives, pools, risk-retention groups, healthcare exchanges, small underwriting enterprises, such as accounting, claims and loss processing assistance, feasibility studies, actuarial studies, data analytics and other administrative services.

The vast majority of our brokerage contracts and service understandings are for a period of one year or less.

Commissions and fees

policies when control of the policy transfers to the client, as well as deferring certain revenues to reflect delivery of services over the contract period.

Commissions are fixed at the contract effective date and generally are based on a percentage of premiums for insurance coverage or employee headcount for employer sponsored benefit plans. Commissions depend upon a large number of factors, including the type of risk being placed, the particular underwriting enterprise’s demand, the expected loss experience of the particular risk of coverage, and historical benchmarks surrounding the level of effort necessary for us to place and service the insurance contract. Rather than being tied to the amount of premiums, fees are most often based on an expected level of effort to provide our services.

Whether we are paid a commission or a fee, the vast majority of our services are associated with the placement of an insurance (or insurance-like) contract. Accordingly, we recognize approximately 80% of our commission and fee revenues on the effective date of the underlying insurance contract. The amount of revenue we recognize is based on our costs to provide our services up and through that effective date, including an appropriate estimate of our profit margin on a portfolio basis (a practical expedient as defined in Topic 606). Based on the proportion of additional services we provide in each period after the effective date of the insurance contract, including an appropriate estimate of our profit margin, we recognize approximately 15% of our commission and fee revenues in the first three months, and the remaining 5% thereafter. These periods may be different than the underlying premium payment patterns of the insurance contracts, but the vast majority of our services are fully provided within one year of the insurance contract effective date.

For consulting and advisory services, we recognize our revenue in the period in which we provide the service or advice. For management and administrative services, our revenue is recognized ratably over the contract period consistent with the performance of our obligations, mostly over an annual term.

Supplemental revenues

Certain underwriting enterprises may pay us additional revenues for the volume of premium placed with them and for insights into our sales pipeline, our sales capabilities or our risk selection knowledge. These amounts are in excess of the commission and fee revenues discussed above, and not all business we place with underwriting enterprises is eligible for supplemental revenues. Unlike contingent revenues, discussed below, these revenues are primarily a fixed amount or fixed percentage of premium of the underlying eligible insurance contracts. For supplemental revenue contracts based on a fixed percentage of premium, our obligation to the underwriting enterprise is substantially completed upon the effective date of the underlying insurance contract and revenue is fully earned at that time. For supplemental revenue contracts based on a fixed amount, revenue is recognized ratably over the contract period consistent with the performance of our obligations, almost always over an annual term. We receive these revenues on a quarterly or annual basis.

Contingent revenues

Certain underwriting enterprises may pay us additional revenues for our sales capabilities, our risk selection knowledge, or our administrative efficiencies. These amounts are in excess of the commission or fee revenues discussed above, and not all business we place with participating underwriting enterprises is eligible for contingent revenues. Unlike supplemental revenues, also discussed above, these revenues are variable, generally based on growth, the loss experience of the underlying insurance contracts, and/or our efficiency in processing the business. We generally operate under calendar year contracts, but we do not receive these revenues from the underwriting enterprises until the following calendar year, generally in the first and second quarters, after verification of the performance indicators outlined in the contracts. Accordingly, during each reporting period, we must make our best estimate of amounts we have earned using historical averages and other factors to project such revenues. We base our estimates each period on a contract-by-contract basis where available. In certain cases, it is impractical to assess a very large number of smaller contingent revenue contracts, so we use a historical portfolio estimate in aggregate (a practical expedient as defined in Topic 606). Because our expectation of the ultimate contingent revenue amounts to be earned can vary from period to period, especially in contracts sensitive to loss ratios, our estimates might change significantly from quarter to quarter. For example, in circumstances where our revenues are dependent on a full calendar year loss ratio, adverse loss experience in the fourth quarter could not only negate revenue earnings in the fourth quarter, but also trigger the need to reverse revenues previously recognized during the prior quarters. Variable consideration is recognized when we conclude, based on all the facts and information available at the reporting date, that it is probable that a significant revenue reversal will not occur in future periods.

Sub-brokerage costs

Sub-brokerage costs are excluded from our gross revenues in our determination of total revenues. Sub-brokerage costs represent commissions paid to sub-brokers related to the placement of certain business by our brokerage segment operations. We recognize this contra revenue in the same manner as the commission revenue to which it relates.

RISK MANAGEMENT SEGMENT

Revenues for our risk management segment are comprised of fees generally negotiated (i) on a per-claim or per-service basis, (ii) on a cost‑plus basis, or (iii) as performance-based fees. We also provide risk management consulting services that are recognized as the services are delivered.

Per-claim or per-service fees

Where we operate under a contract with our fee established on a per-claim or per-service basis, our obligation is to process claims for a term specified within the contract. Because it is impractical to recognize our revenues on an individual claim-by-claim basis, we recognize revenue plus an appropriate estimate of our profit margin on a portfolio basis by grouping claims with similar characteristics (a practical expedient as defined in Topic 606). We apply actuarially-determined, historical-based patterns to determine our future service obligations, without applying a present value discount.

Cost-plus fees

Where we provide services and generate revenues on a cost-plus basis, we recognize revenue over the contract period consistent with the performance of our obligations.

Performance-based fees

Certain clients pay us additional fee revenues for our efficiency in managing claims or on the basis of claim outcome effectiveness. These amounts are in excess of the fee revenues discussed above. These revenues are variable, generally based on performance metrics set forth in the underlying contracts. We generally operate under multi-year contracts with fiscal year measurement periods. We do not receive these fees, if earned, until the following year after verification of the performance metrics outlined in the contracts. Each period we base our estimates on a contract-by-contract basis. We must make our best estimate of amounts we have earned using historical averages and other factors to project such revenues. Variable consideration is recognized when we conclude that it is probable that a significant revenue reversal will not occur in future periods.

Reimbursements

Reimbursements represent amounts received from clients reimbursing us for certain third-party costs associated with providing our claims management services. In certain service partner relationships, we are considered a principal because we direct the third party, control the specified service and combine the services provided into an integrated solution. Given this principal relationship, we are required to recognize revenue gross and service partner vendor fees in the operating expense in our consolidated statement of earnings.

Deferred Costs

We incur costs to provide brokerage and risk management services. Those costs are either (i) costs to obtain a contract or (ii) costs to fulfill such contract, or (iii) all other costs.

(i) Costs to obtain - we incur costs to obtain a contract with a client. Those costs would not have been incurred if the contract had not been obtained. Almost all of our costs to obtain are incurred prior to, or on, the effective date of the contract and consist primarily of incentive compensation we pay to our production employees. Our costs to obtain are expensed as incurred as described in Note 4 to these consolidated financial statements.

(ii) Costs to fulfill - we incur costs to fulfill a contract (or anticipated contract) with a client. Those costs are incurred prior to the effective date of the contract and relate to fulfilling our primary placement obligations to our clients. Our costs to fulfill prior to the effective date are capitalized and amortized on the effective date. These fulfillment activities include collecting underwriting information from our client, assessing their insurance needs and negotiating their placement with one or more underwriting enterprises. The majority of costs that we incur relate to compensation and benefits of our client service employees. Costs incurred during preplacement activities are

expected to be recovered in the future. If the capitalized costs are no longer deemed to be recoverable, then they would be expensed.

(iii) Other costs that are not costs to obtain or fulfill are expensed as incurred. Examples include other operating costs such as rent, utilities, management costs, overhead costs, legal and other professional fees, technology costs, insurance related costs, communication and advertising, and travel and entertainment. Depreciation, amortization and change in estimated acquisition earnout payable are expensed as incurred.

Investment Income

Investment income primarily includes interest (including revenue from our premium financing operations) and dividend income, which is accrued as it is earned. Net gains on divestitures represent one-time gains related to sales of brokerage related businesses, which are primarily recognized on a cash received basis. Revenues from clean coal activities include revenues from consolidated clean coal production plants, royalty income from clean coal licenses and income (loss) related to unconsolidated clean coal production plants, all of which are recognized as earned. Revenues from consolidated clean coal production plants represent sales of refined coal. Royalty income from clean coal licenses represents fee income related to the use of clean coal technologies. Income (loss) from unconsolidated clean coal production plants includes losses related to our equity portion of the pretax results of the clean coal production plants.

Earnings per Share

Basic net earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding during the reporting period. Diluted net earnings per share is computed by dividing net earnings by the weighted average number of common and common equivalent shares outstanding during the reporting period. Common equivalent shares include incremental shares from dilutive stock options, which are calculated from the date of grant under the treasury stock method using the average market price for the period.

Cash and Cash Equivalents

Short-term investments, consisting principally of cash and money market accounts that have average maturities of 90 days or less, are considered cash equivalents.

Fiduciary Assets and Liabilities

Fiduciary assets represent cash held and insurance and reinsurance receivables that relate to our clients and are held on their behalf. Fiduciary liabilities represent the corresponding amounts that are owed to underwriting enterprises on behalf of our clients. In our capacity as an insurance broker, we collect premiums from insureds and, after deducting our commissions and/or fees, remit these premiums to underwriting enterprises. We hold unremitted insurance premiums in a fiduciary capacity until we disburse them, and the use of such funds is restricted by laws in certain states and foreign jurisdictions in which our subsidiaries operate. Various state and foreign agencies regulate insurance brokers and provide specific requirements that limit the type of investments that may be made with such funds. Accordingly, we invest these funds in cash and U.S. Treasury fund accounts. We can earn interest income on these unremitted funds, which is included in investment income in the accompanying consolidated statement of earnings. These unremitted amounts are included in fiduciary assets in the accompanying consolidated balance sheet, with the related liability included in fiduciary liabilities. Additionally, several of our foreign subsidiaries are required by various foreign agencies to meet certain liquidity and solvency requirements. We were in compliance with these requirements at December 31, 2023. This restricted cash is included in cash and cash equivalents net in the accompanying consolidated balance sheet.

Related to our third party administration business and in certain of our brokerage operations, we are responsible for client claim funds that we hold in a fiduciary capacity. We do not earn any interest income on the funds held. These client funds have been included in fiduciary assets, along with a corresponding liability in fiduciary liabilities in the accompanying consolidated balance sheet.

Accounts Receivable

Accounts receivable, net in the accompanying consolidated balance sheet includes accrued agency billed commissions, fees, supplemental commissions, direct bill commissions and contingent commission receivables due to the company. Accounts receivable are net of allowances for estimated policy cancellations and doubtful accounts. The allowance for estimated policy cancellations was $9.9 million and $9.3 million at December 31, 2023 and 2022, respectively, which represents a reserve for

future reversals in commission and fee revenues related to the potential cancellation of client insurance policies that were in force as of each year end. The allowance for doubtful accounts was $23.0 million and $11.1 million at December 31, 2023 and 2022, respectively. We establish the allowance for estimated policy cancellations through a charge to revenues and the allowance for doubtful accounts through a charge to operating expenses. Both of these allowances are based on estimates and assumptions using historical data to project future experience. Such estimates and assumptions could change in the future as more information becomes known which could impact the amounts reported and disclosed herein. We periodically review the adequacy of these allowances and make adjustments as necessary.

Derivative Instruments

We are exposed to market risks, including changes in foreign currency exchange rates and interest rates. To manage the risk related to these exposures, we enter into various derivative instruments that reduce these risks by creating offsetting exposures. In the normal course of business, we are exposed to the impact of foreign currency fluctuations that impact our results of operations and cash flows. We utilize a foreign currency risk management program involving foreign currency derivatives that consist of several monthly put/call options designed to hedge a portion of our future foreign currency disbursements through various future payment dates. To mitigate the counterparty credit risk we only enter into contracts with major financial institutions based upon their credit ratings and other factors. These derivative instrument contracts are cash flow hedges that qualify for hedge accounting and primarily hedge against fluctuations between changes in the British pound and Indian Rupee versus the U.S. dollar. Changes in fair value of the derivative instruments are reflected in other comprehensive earnings in the accompanying consolidated balance sheet. The impact of the hedge at maturity is recognized in the income statement as a component of investment income, compensation and operating expenses depending on the nature of the hedged item. We enter into various long-term debt agreements. We use interest rate derivatives, typically swaps, to reduce our exposure to the effects of interest rate fluctuations on the forecasted interest rates for up to three years into the future. These derivative instrument contracts are periodically monitored for hedge ineffectiveness, the amount of which has not been material to the accompanying consolidated financial statements. We do not use derivatives for trading or speculative purposes.

Premium Financing

Seven subsidiaries of the brokerage segment make short-term loans (generally with terms of twelve months or less) to our clients to finance premiums. These premium financing contracts are structured to minimize potential bad debt expense to us. Such receivables are generally considered delinquent after seven days of the payment due date. In normal course, insurance policies are canceled within one month of the contractual payment due date if the payment remains delinquent. We recognize interest income as it is earned over the life of the contract using the “level-yield” method. Unearned interest related to contracts receivable is included in the receivable balance in the accompanying consolidated balance sheet. The outstanding loan receivable balance was $685.7 million and $546.3 million at December 31, 2023 and 2022, respectively.

Fixed Assets

We carry fixed assets at cost, less accumulated depreciation, in the accompanying consolidated balance sheet. We periodically review long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. Under those circumstances, if the fair value were less than the carrying amount of the asset, we would recognize a loss for the difference. Depreciation for fixed assets is computed using the straight-line method over the following estimated useful lives:

	Useful Life
Office equipment	Three to ten years
Furniture and fixtures	Three to ten years
Computer equipment	Three to five years
Building	Fifteen to forty years
Software	Three to five years
Refined fuel plants	Ten years
Leasehold improvements	Shorter of the lease term or useful life of the asset

Intangible Assets

Intangible assets represent the excess of cost over the estimated fair value of net tangible assets of acquired businesses. Our primary intangible assets are classified as either goodwill, expiration lists, non-compete agreements or trade names. Expiration

lists, non‑compete agreements and trade names are amortized using the straight-line method over their estimated useful lives (two to fifteen years for expiration lists, two to six years for non-compete agreements and two to fifteen years for trade names), while goodwill is not subject to amortization. The establishment of goodwill, expiration lists, non-compete agreements and trade names and the determination of estimated useful lives are primarily based on valuations we receive from qualified independent appraisers. The calculations of these amounts are based on estimates and assumptions using historical and projected financial information and recognized valuation methods. Different estimates or assumptions could produce different results. We carry identifiable intangible assets at cost, less accumulated amortization, in the accompanying consolidated balance sheet.

We review all of our intangible assets for impairment periodically (at least annually for goodwill) and whenever events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. We perform such impairment reviews at the division (i.e., reporting unit) level with respect to goodwill and at the business unit level for amortizable intangible assets. While goodwill is not amortizable, it is tested for impairment at least annually in the fourth quarter, and more frequently if there are indicators of impairment or whenever business circumstances suggest that the carrying value of goodwill may not be recoverable. We may initially perform a qualitative analysis to determine if it is more likely than not that the goodwill balance is impaired. If a qualitative assessment is not performed or if a determination is made that it is not more likely than not that the fair value of the reporting unit exceeds its carrying amount, then we will perform a quantitative analysis. The fair value of each reporting unit is compared to its carrying value. If the fair value of the reporting unit is less than its carrying value, a non-cash impairment charge is recognized for the amount by which the carrying value exceeds the reporting unit’s fair value with the loss not exceeding the total amount of goodwill allocated to that reporting unit. We completed our 2023 annual assessment in the fourth quarter and concluded goodwill was not impaired, as the fair value of each reporting unit exceeded its carrying value.

The carrying value of amortizable intangible assets attributable to each business or asset group is periodically reviewed by management to determine if there are events or changes in circumstances that would indicate that its carrying amount may not be recoverable. Accordingly, if there are any such changes in circumstances during the year, we assess the carrying value of the amortizable intangible assets by considering the estimated future undiscounted cash flows generated by the corresponding business or asset group. Any impairment identified through this assessment may require that the carrying value of related amortizable intangible assets be adjusted and charged against current period earnings as a component of amortization expense. Based on the results of impairment reviews in 2023, 2022 and 2021, we wrote off $3.5 million, $2.0 million and $17.6 million, respectively, of amortizable intangible assets primarily related to acquisitions (made prior to 2021) of our brokerage and risk management segments, which is included in amortization expense in the accompanying consolidated statement of earnings. The determinations of impairment indicators and fair value are based on estimates and assumptions related to the amount and timing of future cash flows and future interest rates. Such estimates and assumptions could change in the future as more information becomes known which could impact the amounts reported and disclosed herein.

Income Taxes

Our tax rate reflects the statutory tax rates applicable to our taxable earnings and tax planning in the various jurisdictions in which we operate. Significant judgment is required in determining the annual effective tax rate and in evaluating uncertain tax positions. We report a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in our tax return. We evaluate our tax positions using a two-step process. The first step involves recognition. We determine whether it is more likely than not that a tax position will be sustained upon tax examination based solely on the technical merits of the position. The technical merits of a tax position are derived from both statutory and judicial authority (legislation and statutes, legislative intent, regulations, rulings and case law) and their applicability to the facts and circumstances of the position. If a tax position does not meet the “more likely than not” recognition threshold, we do not recognize the benefit of that position in the financial statements. The second step is measurement. A tax position that meets the “more likely than not” recognition threshold is measured to determine the amount of benefit to recognize in the financial statements. The tax position is measured as the largest amount of benefit that has a likelihood of greater than 50% of being realized upon ultimate resolution with a taxing authority.

Uncertain tax positions are measured based upon the facts and circumstances that exist at each reporting period and involve significant management judgment. Subsequent changes in judgment based upon new information may lead to changes in recognition, derecognition and measurement. Adjustments may result, for example, upon resolution of an issue with the taxing authorities, or expiration of a statute of limitations barring an assessment for an issue. We recognize interest and penalties, if any, related to unrecognized tax benefits in our provision for income taxes.

Tax law requires certain items to be included in our tax returns at different times than such items are reflected in the financial statements. As a result, the annual tax expense reflected in our consolidated statements of earnings is different than that reported in our tax returns. Some of these differences are permanent, such as expenses that are not deductible in our tax returns, and some

differences are temporary and reverse over time, such as depreciation expense and amortization expense deductible for income tax purposes. Temporary differences create deferred tax assets and liabilities. Deferred tax liabilities generally represent tax expense recognized in the financial statements for which a tax payment has been deferred, or expense which has been deducted in the tax return but has not yet been recognized in the financial statements. Deferred tax assets generally represent items that can be used as a tax deduction or credit in tax returns in future years for which a benefit has already been recorded in the financial statements.

We establish or adjust valuation allowances for deferred tax assets when we estimate that it is more likely than not that future taxable income will be insufficient to fully use a deduction or credit in a specific jurisdiction. In assessing the need for the recognition of a valuation allowance for deferred tax assets, we consider whether it is more likely than not that some portion, or all, of the deferred tax assets will not be realized and adjust the valuation allowance accordingly. We evaluate all significant available positive and negative evidence as part of our analysis. Negative evidence includes the existence of losses in recent years. Positive evidence includes the forecast of future taxable income by jurisdiction, tax-planning strategies that would result in the realization of deferred tax assets and the presence of taxable income in prior carryback years. The underlying assumptions we use in forecasting future taxable income require significant judgment and take into account our recent performance. Such estimates and assumptions could change in the future as more information becomes known which could impact the amounts reported and disclosed herein. The ultimate realization of deferred tax assets depends on the generation of future taxable income during the periods in which temporary differences are deductible or creditable.

Fair Value of Financial Instruments

Fair value accounting establishes a framework for measuring fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). This framework includes a fair value hierarchy that prioritizes the inputs to the valuation technique used to measure fair value.

The classification of a financial instrument within the valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability on the measurement date. The three levels of the hierarchy in order of priority of inputs to the valuation technique are defined as follows:

• Level 1 - Valuations are based on unadjusted quoted prices in active markets for identical financial instruments;

• Level 2 - Valuations are based on quoted market prices, other than quoted prices included in Level 1, in markets that are not active or on inputs that are observable either directly or indirectly for the full term of the financial instrument; and

• Level 3 - Valuations are based on pricing or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement of the financial instrument. Such inputs may reflect management’s own assumptions about the assumptions a market participant would use in pricing the financial instrument.

The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest level input that is significant to the fair value measure in its entirety.

The carrying amounts of financial assets and liabilities reported in the accompanying consolidated balance sheet for cash and cash equivalents, restricted cash, premiums and fees receivable, other current assets, premiums payable to underwriting enterprises, accrued compensation and other accrued liabilities and deferred revenue - current, at December 31, 2023 and 2022, approximate fair value because of the short-term duration of these instruments. See Note 3 to these consolidated financial statements for the fair values related to the establishment of intangible assets and the establishment and adjustment of earnout payables. See Note 8 to these consolidated financial statements for the fair values related to borrowings outstanding at December 31, 2023 and 2022 under our debt agreements. See Note 13 to these consolidated financial statements for the fair values related to investments at December 31, 2023 and 2022 under our defined benefit pension plan.

Litigation

We are the defendant in various legal actions related to claims, lawsuits and proceedings incidental to the nature of our business. We record liabilities for loss contingencies, including legal costs (such as fees and expenses of external lawyers and other service providers) to be incurred, when it is probable that a liability has been incurred on or before the balance sheet date and the amount of the liability can be reasonably estimated. We do not discount such contingent liabilities. To the extent recovery of such losses and legal costs is probable under our insurance programs, we record estimated recoveries concurrently with the losses recognized. Significant management judgment is required to estimate the amounts of such contingent liabilities and the related

insurance recoveries. In order to assess our potential liability, we analyze our litigation exposure based on available information, including consultation with outside counsel handling the defense of these matters. As these liabilities are uncertain by their nature, the recorded amounts may change due to a variety of different factors, including new developments in, or changes in approach, such as changing the settlement strategy as applicable to each matter.

Retention Bonus Arrangements

In connection with the hiring and retention of both new talent and experienced personnel, including our senior management, brokers and other key personnel, we have entered into various agreements with key employees setting up the conditions for the cash payment of certain retention bonuses. These bonuses are an incentive for these employees to remain with the company, for a fixed period of time, to allow us to capitalize on their knowledge and experience. We have various forms of retention bonus arrangements; some are paid up front and some are paid at the end of the term, but all are contingent upon successfully completing a minimum period of employment. A retention bonus that is paid to an employee upfront that is contingent on a certain minimum period of employment, will be initially classified as a prepaid asset and amortized to compensation expense as the future services are rendered over the duration of the stay period. A retention bonus that is paid to an employee at the end of the term that is contingent on a certain minimum period of employment, will be accrued as a liability through compensation expense as the future services are rendered over the duration of the stay period. If an employee leaves prior to the required time frame to earn the retention bonus outright, then all or any portion that is ultimately unearned or refundable, and recovered by the company if prepaid, is forfeited and reversed through compensation expense.

Stock-Based Compensation

We have several employee equity-settled and cash-settled share-based compensation plans. Equity-settled share-based payments to employees include grants of stock options, performance stock units and restricted stock units and are measured based on estimated grant date fair value. We have elected to use the Black-Scholes option pricing model to determine the fair value of stock options on the dates of grant. Performance stock units are measured on the probable outcome of the performance conditions applicable to each grant. Restricted stock units are measured based on the fair market values of the underlying stock on the dates of grant. Shares are issued on the vesting dates net of the minimum statutory tax withholding requirements, as applicable, to be paid by us on behalf of our employees. As a result, the actual number of shares issued will be fewer than the actual number of performance stock units and restricted stock units outstanding. Furthermore, we record the liability for withholding amounts to be paid by us as a reduction to additional paid-in capital when paid.

Cash-settled share-based payments to employees include awards under our Performance Unit Program and stock appreciation rights. The fair value of the amount payable to employees in respect of cash-settled share-based payments is recognized as compensation expense, with a corresponding increase in liabilities, over the vesting period. The liability is remeasured at each reporting date and at settlement date. Any changes in fair value of the liability are recognized as compensation expense.

We recognize share-based compensation expense over the requisite service period for awards expected to ultimately vest. Forfeitures are estimated on the date of grant and revised if actual or expected forfeiture activity differs from original estimates.

Employee Stock Purchase Plan

We have an employee stock purchase plan (which we refer to as the ESPP), under which the sale of 8.0 million shares of our common stock has been authorized. Eligible employees may contribute up to 15% of their compensation towards the quarterly purchase of our common stock at a purchase price equal to 95% of the lesser of the fair market value of our common stock on the first business day or the last business day of the quarterly offering period. Eligible employees may annually purchase shares of our common stock with an aggregate fair market value of up to $25,000 (measured as of the first day of each quarterly offering period of each calendar year), provided that no employee may purchase more than 2,000 shares of our common stock under the ESPP during any calendar year. At December 31, 2023, 5.0 million shares of our common stock was reserved for future issuance under the ESPP.

Defined Benefit Pension Plans

We recognize in our consolidated balance sheet, an asset for our defined benefit pension plans’ overfunded status or a liability for our plans’ underfunded status. We recognize changes in the funded status of our defined benefit pension plans in comprehensive earnings in the year in which the changes occur. We use December 31 as the measurement date for our plans’ assets and benefit obligations. See Note 13 to these consolidated financial statements for additional information required to be disclosed related to our defined benefit pension plans.

2. Effect of New Accounting Pronouncements

Segment Reporting

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires that an entity report segment information in accordance with Topic 280, Segment Reporting. The amendment in the ASU is intended to improve reportable segment disclosure requirements primarily through enhanced disclosures about significant segment expenses. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. We are currently evaluating the impact of the new standard on our consolidated financial statements which is expected to result in enhanced disclosures.

Income Taxes

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires that an entity, on an annual basis, disclose additional income tax information, primarily related to the rate reconciliation and income taxes paid. The amendment in the ASU is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this update are effective for annual periods beginning after December 15, 2024. We are currently evaluating the impact of the new standard on our consolidated financial statements which is expected to result in enhanced disclosures.

3. Business Combinations

During 2023, we acquired substantially all of the ownership interests or net assets, as applicable, of the following firms in exchange for our common stock and/or cash. These acquisitions have been accounted for using the acquisition method for recording business combinations (in millions, except share data):

Name and Effective Date of Acquisition	Common<br>Shares<br>Issued		Common<br>Share<br>Value		Cash<br>Paid		Accrued<br>Liability		Escrow<br>Deposited		Recorded<br>Earnout<br>Payable		Total<br>Recorded<br>Purchase<br>Price		Maximum<br>Potential<br>Earnout<br>Payable
	(000s)
First Ireland Risk<br> Management Ltd.<br> January 1, 2023 (FIR)		—	$	—	$	86.4	$	—	$	5.3	$	6.1	$	97.8	$	6.6
BCHR Holdings, L.P. dba Buck <br> April 1, 2023 (BCHR)		—		—		600.8		0.5		19.5		—		620.8		—
Boley-Featherston-Huffman<br> & Deal Co.<br> April 1, 2023 (BFH)		243		45.2		8.8		—		6.0		9.3		69.3		15.0
Tay River Holdings Limited<br> April 1, 2022 (TRH)		—		—		40.3		4.3		2.4		32.0		79.0		88.7
Insurance by Ken Brown <br> May 1, 2023 (IKB)		273		53.9		1.8		—		2.9		11.3		69.9		17.5
RHP General Agency<br> May 1, 2023 (RHP)		335		65.7		1.3		—		5.0		4.4		76.4		11.0
Clements & Co<br> October 1, 2023 (CLM)		193		43.3		7.1		—		3.0		30.9		84.3		70.0
Eastern Insurance Group, LLC<br> October 31, 2023 (EIG)		—		—		511.4		3.7		—		—		515.1		—
Cadence Insurance, Inc.<br> November 30, 2023 (CDI)		—		—		880.1		5.9		—		—		886.0		—
My Plan Manager<br> December 1, 2023 (MPM)		—		—		298.6		—		3.0		—		301.6		—
Forty-one other acquisitions<br> completed in 2023		450		98.0		671.6		11.7		47.6		113.5		942.4		191.4
		1,494	$	306.1	$	3,108.2	$	26.1	$	94.7	$	207.5	$	3,742.6	$	400.2

On December 6, 2023, we acquired all of the issued and outstanding shares of My Plan Manager Group Pty Ltd (which we refer to as My Plan Manager). We funded the transaction using free cash flow and borrowings under our Credit Agreement. The acquired My Plan Manager is the leading provider of plan management services to participants in Australia’s National Disability Insurance Scheme.

On November 30, 2023, we acquired all of the issued and outstanding shares of Cadence Insurance, Inc. (which we refer to as Cadence Insurance). We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Cadence Insurance business offers a full suite of commercial property/casualty, employee benefits and personal lines products to clients from 34 offices spanning nine states across the Southeast, including Texas.

On October 31, 2023, we acquired the net assets of Eastern Insurance Group, LLC (which we refer to as Eastern Insurance). We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Eastern Insurance business offers comprehensive commercial property/casualty and personal lines products as well as employee benefits consulting to clients throughout the Northeastern U.S.

On April 3 2023, we acquired the partnership interests of BCHR holdings, L.P. and its subsidiaries dba Buck (which we refer to as Buck). We funded the transaction using free cash flow and funds received from an unsecured senior notes offering. The acquired Buck business is a leading provider of retirement, human resources and employee benefits consulting and administration services operating for more than 100 years and has a diverse client base by both size and industry. Immediately prior to closing, Buck had over 2,300 employees, including more than 220 credentialed actuaries, primarily serving customers throughout the U.S., Canada and the U.K.

Common shares issued in connection with acquisitions are valued at closing market prices as of the effective date of the applicable acquisition or on the days when the shares are issued, if purchase consideration is deferred. We record escrow deposits that are returned to us as a result of adjustments to net assets acquired as reductions of goodwill when the escrows are settled. The maximum potential earnout payables disclosed in the foregoing table represent the maximum amount of additional consideration that could be paid pursuant to the terms of the purchase agreement for the applicable acquisition. The amounts recorded as earnout payables, which are primarily based upon the estimated future operating results of the acquired entities over a two- to three-year period subsequent to the acquisition date, are measured at fair value as of the acquisition date and are included on that basis in the recorded purchase price consideration in the foregoing table. We will record subsequent changes in these estimated earnout obligations, including the accretion of discount, in our consolidated statement of earnings when incurred.

The fair value of these earnout obligations is based on the present value of the expected future payments to be made to the sellers of the acquired entities in accordance with the provisions outlined in the respective purchase agreements, which is a Level 3 fair value measurement. In determining fair value, we estimated the acquired entity’s future performance using financial projections developed by management for the acquired entity and market participant assumptions that were derived for revenue growth and/or profitability. Revenue growth rates generally ranged from 5.0% to 20.0% for our 2023 acquisitions. We estimated future payments using the earnout formula and performance targets specified in each purchase agreement and the financial projections just described. We then discounted these payments to present value using a risk-adjusted rate that takes into consideration market‑based rates of return that reflect the ability of the acquired entity to achieve the targets. The discount rates generally ranged from 6.7% to 9.6% for our 2023 acquisitions. Changes in financial projections, market participant assumptions for revenue growth and/or profitability, or the risk-adjusted discount rate, would result in a change in the fair value of recorded earnout obligations.

During 2023, 2022 and 2021, we recognized $76.6 million, $61.0 million and $35.7 million respectively, of expense in our consolidated statement of earnings related to the accretion of the discount recorded for earnout obligations in connection with our acquisitions. In addition, during 2023, 2022 and 2021, we recognized $300.7 million, $22.0 million and $83.9 million of expense, respectively, related to net adjustments in the estimated fair value of the liability for earnout obligations in connection with revised assumptions due to changes in interest rates volatility and other assumptions and projections of future performance for 80, 89 and 99 acquisitions, respectively. The net adjustments during 2023, include changes made to the estimated fair value of the Willis Re acquisition earnout and reflect updated assumptions as of December 31, 2023. The aggregate amount of maximum earnout obligations related to acquisitions made in 2020 and subsequent years was $2,009.8 million as of December 31, 2023, of which $1,294.2 million was recorded in the consolidated balance sheet as of that date based on the estimated fair value of the expected future payments to be made, of which approximately $564.8 million can be settled in cash or stock at our option and $729.4 million must be settled in cash. The aggregate amount of maximum earnout obligations related to acquisitions made in 2019 and subsequent years was $1,946.2 million as of December 31, 2022, of which $1,077.3 million was recorded in the consolidated balance sheet as of that date based on the estimated fair value of the expected future payments to be

made, of which approximately $734.0 million can be settled in cash or stock at our option and $343.3 million must be settled in cash.

The following is a summary of the estimated fair values of the net assets acquired at the date of each acquisition made in 2023 (in millions):

	FIR		BCHR		BFH		TRH		IKB		RHP		CLM		EIG		CDI		MPM		Forty-one Other<br>Acquisitions		Total
Cash and cash equivalents	$	13.0	$	25.8	$	0.6	$	5.3	$	2.0	$	—	$	—	$	0.5	$	58.7	$	5.0	$	35.1	$	146.0
Fiduciary assets		13.8		—		3.7		—		0.5		3.0		15.8		22.9		42.3		—		88.4		190.4
Other current assets		1.4		60.9		1.4		8.3		2.6		1.5		3.3		20.4		40.7		5.5		31.2		177.2
Fixed assets		0.8		36.8		—		—		0.2		—		1.5		0.1		12.3		59.6		0.8		112.1
Noncurrent assets		8.6		35.0		0.2		0.2		0.5		0.3		4.0		1.5		16.0		4.8		14.5		85.6
Goodwill		63.8		366.8		50.6		61.9		49.8		43.7		59.9		191.1		314.7		121.8		465.1		1,789.2
Expiration lists		25.9		207.6		22.7		7.5		22.3		43.5		34.5		322.0		499.5		88.0		447.5		1,721.0
Non-compete agreements		0.1		—		0.6		—		0.5		—		0.6		1.0		1.6		14.7		11.4		30.5
Trade names		0.4		2.6		—		0.4		—		0.2		—		—		—		58.7		2.0		64.3
Total assets acquired		127.8		735.5		79.8		83.6		78.4		92.2		119.6		559.5		985.8		358.1		1,096.0		4,316.3
Fiduciary liabilities		13.8		—		3.7		—		0.5		3.0		15.8		22.9		42.3		—		88.4		190.4
Current liabilities		3.9		50.4		0.6		2.6		1.7		1.3		3.8		20.4		38.6		4.8		21.7		149.8
Noncurrent liabilities		12.3		64.3		6.2		2.0		6.3		11.5		15.7		1.1		18.9		51.7		43.5		233.5
Total liabilities assumed		30.0		114.7		10.5		4.6		8.5		15.8		35.3		44.4		99.8		56.5		153.6		573.7
Total net assets acquired	$	97.8	$	620.8	$	69.3	$	79.0	$	69.9	$	76.4	$	84.3	$	515.1	$	886.0	$	301.6	$	942.4	$	3,742.6

Among other things, these acquisitions allow us to expand into desirable geographic locations, further extend our presence in the retail and wholesale insurance and reinsurance brokerage markets and increase the volume of general services currently provided. The excess of the purchase price over the estimated fair value of the tangible net assets acquired at the acquisition date was allocated to goodwill, expiration lists, non-compete agreements and trade names in the amounts of $1,789.2 million, $1,721.0 million, $30.5 million and $64.3 million, respectively, within the brokerage and risk management segments.

The fair value of the tangible assets and liabilities for each applicable acquisition at the acquisition date approximated their carrying values. In general, the fair value of expiration lists was established using the excess earnings method, which is an income approach based on estimated financial projections developed by management for each acquired entity using market participant assumptions. Revenue growth and attrition rates generally ranged from 3.0% to 5.0% and 5.0% to 25.5% for our 2023 and 2022 acquisitions, respectively, for which valuations were performed in 2023. We estimate the fair value as the present value of the benefits anticipated from ownership of the subject expiration list in excess of returns required on the investment in contributory assets necessary to realize those benefits. The rate used to discount the net benefits was based on a risk-adjusted rate that takes into consideration market-based rates of return and reflects the risk of the asset relative to the

acquired business. These discount rates generally ranged from 9.0% to 15.0% for our 2023 and 2022 acquisitions, for which valuations were performed in 2023. The fair value of non-compete agreements was established using the profit differential method, which is an income approach based on estimated financial projections developed by management for the acquired company using market participant assumptions and various non-compete scenarios.

Provisional estimates of fair value are established at the time of each acquisition and are subsequently reviewed and finalized within the first year of operations subsequent to the acquisition date to determine the necessity for adjustments. During this period, we may use independent third-party valuation specialists to assist us in finalizing the fair value of assets acquired and liabilities assumed. Fair value adjustments, if any, are most common to the values established for amortizable intangible assets, including expiration lists, non‑compete agreements, acquired software, and for earnout liabilities, with the offset to goodwill, net of any income tax effect. Provisional estimates of fair value were used by us to initially record the acquisition of Willis Re as of the December 1, 2021 acquisition date. We used independent third-party valuation specialists to assist us in determining the fair value of assets acquired and liabilities assumed for this transaction. As of December 31, 2022, the specialists completed their analysis and the fair value estimates have been finalized. Based on the work performed in 2022, we made adjustments to the amounts initially recorded for expiration lists, acquired software and for earnout liability. As a result of these adjustments, the amount allocated to expiration lists decreased by $608.0 million, the amount allocated to acquired software increased by $59.1 million and the fair value of the earnout liability as of the acquisition date decreased by $1.6 million. In addition, a net working capital adjustment of $106.0 million was recorded in 2022, related to this transaction, which resulted in a decrease in the initial purchase price consideration paid. These non-cash adjustments resulted in a net increase in goodwill of $441.3 million. The reason for the lower value allocated to expiration lists is due to receipt of additional information regarding average customer lives and the higher value allocated to the acquired software which is a result of the incorporation of additional information related to the licensing of certain software applications.

Expiration lists, non-compete agreements and trade names related to our acquisitions are amortized using the straight-line method over their estimated useful lives (two to fifteen years for expiration lists, two to six years for non-compete agreements and two to fifteen years for trade names), while goodwill is not subject to amortization. We use the straight-line method to amortize these intangible assets because the pattern of their economic benefits cannot be reasonably determined with any certainty. We review all of our identifiable intangible assets for impairment periodically (at least annually) and whenever events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. In reviewing identifiable intangible assets, if the undiscounted future cash flows were less than the carrying amount of the respective (or underlying) asset, an indicator of impairment would exist and further analysis would be required to determine whether or not a loss would need to be charged against current period earnings as a component of amortization expense. Based on the results of impairment reviews in 2023, 2022 and 2021, we wrote off $3.5 million, $2.0 million and $17.6 million, respectively, of amortizable intangible assets related to the brokerage and risk management segments.

Of the $1,721.0 million of expiration lists, $30.5 million of non-compete agreements and $64.3 million of trade names related to the 2023 acquisitions, $580.0 million, $22.9 million and $62.8 million, respectively, is not expected to be deductible for income tax purposes. Accordingly, we recorded a deferred tax liability of $172.0 million, and a corresponding amount of goodwill, in 2023 related to the nondeductible amortizable intangible assets.

Our consolidated financial statements for the year ended December 31, 2023 include the operations of the acquired entities from their respective acquisition dates. The following is a summary of the unaudited pro forma historical results, as if these entities had been acquired at January 1, 2022 (in millions, except per share data):

	Year Ended December 31,
	2023		2022
Total revenues	$	10,579.8	$	9,390.7
Net earnings attributable to controlling interests		954.4		1,091.5
Basic net earnings per share		4.42		5.15
Diluted net earnings per share		4.33		5.05

The unaudited pro forma results above have been prepared for comparative purposes only and do not purport to be indicative of the results of operations which actually would have resulted had these acquisitions occurred at January 1, 2022, nor are they necessarily indicative of future operating results. Annualized revenues of entities acquired in 2023 totaled approximately $885.1 million. Total revenues and net loss recorded in our consolidated statement of earnings for 2023 related to the 2023 acquisitions in the aggregate, were $394.0 million and $(21.4) million, respectively.

4. Contracts with Customers

Contract Assets and Liabilities/Contract Balances

Information about unbilled receivables, contract assets and contract liabilities from contracts with customers is as follows (in millions):

	December 31, 2023		December 31, 2022
Unbilled receivables	$	1,093.7	$	910.9
Deferred contract costs		169.1		144.5
Deferred revenue		706.2		609.3

The unbilled receivables, which are included in premium and fees receivable in our consolidated balance sheet, primarily relate to our rights to consideration for work completed but not billed at the reporting date. These are transferred to the receivables when the client is billed. The deferred contract costs represent the costs we incur to fulfill a new or renewal contract with our clients prior to the effective date of the contract. These costs are expensed on the contract effective date. The deferred revenue in the consolidated balance sheet included amounts that represent the remaining performance obligations under our contracts and amounts collected related to advanced billings and deposits received from customers that may or may not ultimately be recognized as revenues in the future. Deposits received from customers could be returned to the customers based on lesser actual transactional volume than originally billed volume.

Significant changes in the deferred revenue balances, which include foreign currency translation adjustments, during the period are as follows (in millions):

	Brokerage			Risk<br>Management			Total
Deferred revenue at December 31, 2021	$	395.9		$	183.7		$	579.6
Incremental deferred revenue		342.3			103.2			445.5
Revenue recognized during the year ended December 31,<br> 2022 included in deferred revenue at December 31, 2021		(326.3	)		(104.6	)		(430.9	)
Net change in collected billings/deposits received from customers		21.4			(7.0	)		14.4
Impact of changes in foreign exchange rates		(17.9	)		—			(17.9	)
Deferred revenue recognized from business acquisitions		18.6			—			18.6
Deferred revenue at December 31, 2022		434.0			175.3			609.3
Incremental deferred revenue		386.3			106.7			493.0
Revenue recognized during the year ended December 31,<br> 2023 included in deferred revenue at December 31, 2022		(358.4	)		(103.6	)		(462.0	)
Net change in collected billings/deposits received from customers		18.8			(5.8	)		13.0
Impact of changes in foreign exchange rates		15.2			—			15.2
Deferred revenue recognized from business acquisitions		37.7			—			37.7
Deferred revenue at December 31, 2023	$	533.6		$	172.6		$	706.2

Revenue recognized during 2023 in the table above included revenue from 2022 acquisitions that would not be reflected in prior years.

Remaining Performance Obligations

Remaining performance obligations represent the portion of the contract price for which work has not been performed. As of December 31, 2023, the aggregate amount of the contract price allocated to remaining performance obligations was $706.2 million.

The estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period is as follows (in millions):

	Brokerage		Risk<br>Management		Total
2024	$	498.4	$	42.7	$	541.1
2025		31.3		68.5		99.8
2026		1.9		28.1		30.0
2027		1.0		14.6		15.6
2028		0.5		7.9		8.4
Thereafter		0.5		10.8		11.3
Total	$	533.6	$	172.6	$	706.2

Deferred Contract Costs

We capitalize costs incurred to fulfill contracts as “deferred contract costs” which are included in other current assets in our consolidated balance sheet. Deferred contract costs were $169.1 million and $144.5 million as of December 31, 2023 and 2022, respectively. Capitalized fulfillment costs are amortized to expense on the contract effective date. The amount of amortization of the deferred contract costs was $570.8 million and $504.4 million for the years ended December 31, 2023 and 2022, respectively.

We have applied the practical expedient to recognize the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that we otherwise would have recognized is one year or less for our brokerage segment. These costs are included in compensation and operating expenses in our consolidated statement of earnings.

5. Change in Presentation of Fiduciary Assets and Liabilities

In first quarter 2023, we revised the presentation of certain amounts in our consolidated balance sheet and statement of cash flows primarily to separately identify and present fiduciary assets and liabilities. Specifically, we have reclassified prior period balances of fiduciary assets historically included in restricted cash and premiums and fees receivable into a new line on the balance sheet, fiduciary assets. Additionally, we have made certain immaterial revisions to fiduciary related balances including premiums receivable and premiums payable to underwriting enterprises related to the former Willis Re operations from gross to a net presentation to align to our accounting policy and presentation. We also added a new accounts receivable, net line in the balance sheet that includes accrued agency billed commissions, fees, supplemental commissions, direct bill commissions and contingent commission receivables due to the company. Fiduciary assets represent cash held and insurance and reinsurance receivables that relate to our clients and are held on their behalf. Fiduciary liabilities represent the corresponding amounts that are owed to underwriting enterprises on behalf of our clients. We made the applicable revisions and reclassifications to the prior-period amounts to conform to the current period presentation. These changes had no impact on the consolidated statement of earnings, comprehensive earnings or stockholders’ equity for all periods presented. Additionally, these revisions did not impact our previously reported net increase in total cash (i.e., net cash, cash equivalents and restricted cash in the aggregate on our statement of cash flows).

The revisions and reclassifications to the presentation of the consolidated balance sheet include the following:

Assets

• Restricted cash line was removed. Amounts were reclassified to cash and cash equivalents and fiduciary assets. See Note 20 - Supplemental Disclosures of Cash Flow Information for a reconciliation of our end of period cash, cash equivalents, restricted cash and fiduciary cash balances.

• A new fiduciary assets line was added. Amounts were reclassified from restricted cash and premiums and fees receivable.

• A new accounts receivable, net line was added. Amounts were reclassified from premiums and fees receivable and other current assets.

• The premiums and fees receivable line was removed.

Liabilities

• A new fiduciary liabilities line item was added. Amounts were reclassified from premiums payable to underwriting enterprises.

• The premiums payable to underwriting enterprises was removed.

The revisions and reclassifications to the presentation of the consolidated statement of cash flows include the following:

Net cash provided by operating activities

• The net change in premiums and fees receivable was removed.

• A new net change in accounts receivable, net was added.

• The net change in premiums payable to underwriting enterprises was removed.

Net cash provided by financing activities

• A new net change in fiduciary assets and liabilities was added.

In addition to these changes, we moved the net change in fiduciary assets and liabilities from the operating section to the financing section of the statement of cash flows.

The effect of the changes to the presentation of our consolidated balance sheet as of December 31, 2022 is summarized below:

	December 31,
(In millions)	Reported 2022		Change			Revised 2022
Cash and cash equivalents	$	342.3	$	396.1		$	738.4
Restricted cash		4,621.9		(4,621.9	)		—
Premiums and fees receivable		16,408.9		(16,408.9	)		—
Fiduciary assets		—		18,236.7			18,236.7
Accounts receivable, net		—		2,911.1			2,911.1
Other current assets		1,461.5		(1,062.5	)		399.0
Total current assets		22,834.6		(549.4	)		22,285.2
Total assets		38,907.8		(549.4	)		38,358.4
Premium payable to underwriting enterprises		18,698.2		(18,698.2	)		—
Fiduciary liabilities		—		18,236.7			18,236.7
Accrued compensation and other accrued liabilities		2,091.2		(87.9	)		2,003.3
Total current liabilities		21,888.0		(549.4	)		21,338.6
Total liabilities		29,717.6		(549.4	)		29,168.2
Total liabilities and stockholders' equity		38,907.8		(549.4	)		38,358.4

The effect of the changes to the presentation of our statement of cash flows for the year ended December 31, 2022 and 2021 is summarized below:

	Year ended December 31,
(In millions)	Reported 2022			Change			Revised 2022
Cash flows from operating activities:
Net change in accounts receivable, net	$	—		$	(319.6	)	$	(319.6	)
Net change in premium and fees receivable		(4,789.3	)		4,789.3			—
Net change in premiums payable to underwriting enterprises		5,084.2			(5,084.2	)		—
Net change in other current assets		(47.1	)		(24.6	)		(71.7	)
Net change in accrued compensation and other accrued liabilities		215.3			(96.3	)		119.0
Net cash provided by operating activities		2,125.4			(735.4	)		1,390.0
Cash flows from financing activities:
Net change in fiduciary assets and liabilities		—			735.4			735.4
Net cash provided by (used) by financing activities		(522.8	)		735.4			212.6

	Year ended December 31,
(In millions)	Reported 2021			Change			Revised 2021
Cash flows from operating activities:
Net change in accounts receivable, net	$	—		$	(172.3	)	$	(172.3	)
Net change in premium and fees receivable		132.9			(132.9	)		—
Net change in premiums payable to underwriting enterprises		35.5			(35.5	)		—
Net change in other current assets		(136.8	)		34.0			(102.8	)
Net change in accrued compensation and other accrued liabilities		222.3			(5.0	)		217.3
Net cash provided by operating activities		1,704.1			(311.7	)		1,392.4
Cash flows from financing activities:
Net change in fiduciary assets and liabilities		—			311.7			311.7
Net cash provided by financing activities		2,684.1			311.7			2,995.8

6. Fixed Assets

Major classes of fixed assets consist of the following (in millions):

	December 31,
	2023			2022
Office equipment	$	32.9		$	32.2
Furniture and fixtures		154.1			142.0
Leasehold improvements		232.6			190.7
Computer equipment		353.5			295.8
Land and buildings - corporate headquarters		168.9			145.3
Software		722.9			583.4
Other		31.3			16.9
Work in process		54.1			56.0
		1,750.3			1,462.3
Accumulated depreciation		(1,023.9	)		(886.1	)
Net fixed assets	$	726.4		$	576.2

The amounts in work in process in the table above primarily are for capitalized expenditures incurred related to IT development projects in 2023 and 2022.

7. Intangible Assets

The carrying amount of goodwill at December 31, 2023 and 2022 allocated by domestic and foreign operations is as follows (in millions):

	Brokerage		Risk<br>Management		Corporate		Total
At December 31, 2023
United States	$	6,304.5	$	74.8	$	—	$	6,379.3
United Kingdom		2,493.4		18.5		—		2,511.9
Canada		623.7		—		—		623.7
Australia		514.6		135.9		—		650.5
New Zealand		204.2		9.6		—		213.8
Other foreign		1,077.4		—		19.0		1,096.4
Total goodwill - net	$	11,217.8	$	238.8	$	19.0	$	11,475.6
At December 31, 2022
United States	$	5,065.7	$	74.8	$	—	$	5,140.5
United Kingdom		2,180.2		17.7		—		2,197.9
Canada		569.7		—		—		569.7
Australia		467.6		10.2		—		477.8
New Zealand		203.8		9.5		—		213.3
Other foreign		871.1		—		19.1		890.2
Total goodwill - net	$	9,358.1	$	112.2	$	19.1	$	9,489.4

The changes in the carrying amount of goodwill for 2023 and 2022 are as follows (in millions):

	Brokerage			Risk<br>Management			Corporate			Total
Balance as of December 31, 2021	$	8,544.6		$	100.9		$	20.7		$	8,666.2
Goodwill acquired during the year		693.9			16.0			—			709.9
Goodwill adjustments related to appraisals and other acquisition<br> adjustments		428.3			(1.6	)		0.2			426.9
Foreign currency translation adjustments during the year		(308.7	)		(3.1	)		(1.8	)		(313.6	)
Balance as of December 31, 2022		9,358.1			112.2			19.1			9,489.4
Goodwill acquired during the year		1,667.4			121.8			—			1,789.2
Goodwill adjustments related to appraisals and other acquisition<br> adjustments		20.0			(0.1	)		—			19.9
Foreign currency translation adjustments during the year		172.3			4.9			(0.1	)		177.1
Balance as of December 31, 2023	$	11,217.8		$	238.8		$	19.0		$	11,475.6

Major classes of amortizable intangible assets consist of the following (in millions):

	December 31,
	2023			2022
Expiration lists	$	8,222.8		$	6,472.3
Accumulated amortization - expiration lists		(3,733.2	)		(3,178.5	)
		4,489.6			3,293.8
Non-compete agreements		112.2			91.3
Accumulated amortization - non-compete agreements		(74.9	)		(67.5	)
		37.3			23.8
Trade names		171.8			108.5
Accumulated amortization - trade names		(65.4	)		(54.0	)
		106.4			54.5
Net amortizable assets	$	4,633.3		$	3,372.1

Estimated aggregate amortization expense for each of the next five years is as follows (in millions):

2024	$	623.2
2025		580.7
2026		537.7
2027		500.5
2028		459.2
Thereafter		1,932.0
Total	$	4,633.3

8. Credit and Other Debt Agreements

The following is a summary of our corporate and other debt (in millions):

	December 31,
	2023			2022
Senior Notes:
Semi-annual payments of interest, fixed rate of 2.40%, balloon due November 9, 2031	$	400.0		$	400.0
Semi-annual payments of interest, fixed rate of 5.50%, balloon due March 2, 2033		350.0			—
Semi-annual payments of interest, fixed rate of 3.50%, balloon due May 20, 2051		850.0			850.0
Semi-annual payments of interest, fixed rate of 3.05%, balloon due March 9, 2052		350.0			—
Semi-annual payments of interest, fixed rate of 5.75%, balloon due March 2, 2053		600.0			350.0
Semi-annual payments of interest, fixed rate of 6.50%, balloon due February 15, 2034		400.0			350.0
Semi-annual payments of interest, fixed rate of 6.75%, balloon due February 15, 2054		600.0			—
Total Senior Notes		3,550.0			1,950.0
Note Purchase Agreements:
Semi-annual payments of interest, fixed rate of 5.49%, balloon due February 10, 2023		—			50.0
Semi-annual payments of interest, fixed rate of 4.13%, balloon due June 24, 2023		—			200.0
Semi-annual payments of interest, fixed rate of 4.72%, balloon due February 13, 2024		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.58%, balloon due February 27, 2024		325.0			325.0
Quarterly payments of interest, floating rate of 90 day LIBOR plus 1.40%, balloon due June 13, 2024		—			50.0
Semi-annual payments of interest, fixed rate of 4.31%, balloon due June 24, 2025		200.0			200.0
Semi-annual payments of interest, fixed rate of 4.85%, balloon due February 13, 2026		140.0			140.0
Semi-annual payments of interest, fixed rate of 4.73%, balloon due February 27, 2026		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.40%, balloon due June 2, 2026		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.36%, balloon due June 24, 2026		150.0			150.0
Semi-annual payments of interest, fixed rate of 3.75%, balloon due January 30, 2027		30.0			30.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due June 27, 2027		125.0			125.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due August 2, 2027		125.0			125.0
Semi-annual payments of interest, fixed rate of 4.14%, balloon due August 4, 2027		98.0			98.0
Semi-annual payments of interest, fixed rate of 3.46%, balloon due December 1, 2027		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.55%, balloon due June 2, 2028		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 13, 2028		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.04%, balloon due February 13, 2029		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.98%, balloon due February 27, 2029		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.19%, balloon due June 27, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 4.19%, balloon due August 2, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 3.48%, balloon due December 2, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 3.99%, balloon due January 30, 2030		341.0			341.0
Semi-annual payments of interest, fixed rate of 4.44%, balloon due June 13, 2030		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.14%, balloon due March 13, 2031		180.0			180.0
Semi-annual payments of interest, fixed rate of 4.70%, balloon due June 2, 2031		25.0			25.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due January 30, 2032		69.0			69.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 27, 2032		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due August 2, 2032		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.59%, balloon due June 13, 2033		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.29%, balloon due March 13, 2034		40.0			40.0
Semi-annual payments of interest, fixed rate of 4.48%, balloon due June 12, 2034		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.24%, balloon due January 30, 2035		79.0			79.0
Semi-annual payments of interest, fixed rate of 2.44%, balloon due February 10, 2036		100.0			100.0
Semi-annual payments of interest, fixed rate of 2.46%, balloon due May 5, 2036		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.69%, balloon due June 13, 2038		75.0			75.0
Semi-annual payments of interest, fixed rate of 5.45%, balloon due March 13, 2039		40.0			40.0
Semi-annual payments of interest, fixed rate of 4.49%, balloon due January 30, 2040		56.0			56.0
Total Note Purchase Agreements		3,948.0			4,248.0
Credit Agreement:
Periodic payments of interest and principal, prime or SOFR plus up to 1.375%, expires June 22, 2028		245.0			60.0
Premium Financing Debt Facility - expires October 31, 2025:
Facility B
AUD denominated tranche, interbank rates plus 1.500%		249.0			217.6
NZD denominated tranche, interbank rates plus 1.850%		—			—
Facility C and D
AUD denominated tranche, interbank rates plus 0.830%		31.4			15.2
NZD denominated tranche, interbank rates plus 0.990%		8.6			9.1
Total Premium Financing Debt Facility		289.0			241.9
Total corporate and other debt		8,032.0			6,499.9
Less unamortized debt acquisition costs on Senior Notes and Note Purchase Agreements		(38.4	)		(20.6	)
Less unamortized discount on Bonds Payable		(28.6	)		(14.6	)
Net corporate and other debt	$	7,965.0		$	6,464.7
The Senior Notes in the table above are registered by the company with the Securities and Exchange Commission and are not guaranteed.

2034

(which we refer to as the 2034 Notes) and $600.0 million aggregate principal amount of 6.75% Senior Notes is due

2054

(which we refer to as the 2054 Notes). The weighted average interest rate is 5.97% per annum after giving effect to underwriting costs and a net hedge gain. During 2021 through 2023, we entered into a pre-issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $128.0 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our 94

reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

On March 2, 2023, we closed and funded an offering of $950.0 million of unsecured senior notes in two tranches. The $350.0 million aggregate principal amount of 5.50% Senior Notes is due

2033

(which we refer to as the 2033 Notes) and $600.0 million aggregate principal amount of 5.75% Senior Notes is due

2053

(which we refer to as the 2053 Notes). The weighted average interest rate is 5.05% per annum after giving effect to underwriting costs and a net hedge gain. During 2019 through 2022, we entered into a pre‑issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $112.7 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes. Note Purchase Agreements - During June 2023, we used operating cash to fund the $200.0 million Series N note maturity that had a fixed rate of 4.13% that was due June 24, 2023.

During June 2023, we used operating cash to fund the prepayment of the $50.0 million Series CC note floating rate of 90 day LIBOR plus 1.40%, balloon that was originally due on June 13, 2024.

During February 2023, we used operating cash to fund the $50.0 million Series E note maturity that had a fixed rate of 5.49% that was due February 10, 2023.

During June 2022, we used operating cash to fund the $200.0 million Series G note maturity that had a fixed rate of 3.69% that was due June 14, 2023.

Under the terms of the note purchase agreements described above, we may redeem the notes at any time, in whole or in part, at 100% of the principal amount of such notes being redeemed, together with accrued and unpaid interest and a “make-whole amount”. The “make-whole amount” is derived from a net present value computation of the remaining scheduled payments of principal and interest using a discount rate based on the U.S. Treasury yield plus 0.5% and is designed to compensate the purchasers of the notes for their investment risk in the event prevailing interest rates at the time of prepayment are less favorable than the interest rates under the notes. We do not currently intend to prepay any of the notes.

The note purchase agreements described above contain customary provisions for transactions of this type, including representations and warranties regarding us and our subsidiaries and various financial covenants, including covenants that require us to maintain specified financial ratios. We were in compliance with these covenants as of December 31, 2023. The note purchase agreements also provide customary events of default, generally with corresponding grace periods, including, without limitation, payment defaults with respect to the notes, covenant defaults, cross-defaults to other agreements evidencing our or our subsidiaries’ indebtedness, certain judgments against us or our subsidiaries and events of bankruptcy involving us or our material subsidiaries.

The notes issued under the note purchase agreement are senior unsecured obligations of ours and rank equal in right of payment with our Credit Agreement discussed below.

Credit Agreement - On June 22, 2023, we entered into a new Credit agreement (which we refer to as the Credit Agreement) with an administrative agent and a group of other lenders. The Credit Agreement provides for a five-year unsecured revolving credit facility in the amount of $1,200.0 million (including a $75.0 million letter of credit sub-facility), which is also available in Pounds Sterling, Canadian Dollars, Australian Dollars, New Zealand Dollars, Euros, Japanese Yen and any other currencies agreed by the lenders. On November 7, 2023, we entered into the First Amendment to the Credit Agreement, pursuant to which we increased the commitments under the Credit Agreement to $1,700.0 million. The Credit Agreement permits us to designate wholly-owned subsidiaries located in certain jurisdictions as additional borrowers, the obligations of which under the Credit Agreement will be guaranteed by the Company, subject to the terms and conditions set forth in the Credit Agreement. Any subsidiary that guarantees any notes under the Company’s existing note purchase agreements is required to guarantee the obligations under the Credit Agreement. There are currently no subsidiary borrowers or guarantors under the Credit Agreement.

SOFR loans and loans in currencies other than U.S. dollars under the Credit Agreement will be based on, as applicable, a SOFR Daily Floating Rate, Term SOFR, Alternative Currency Daily Rate or Alternative Currency Term Rate, as defined in the Credit Agreement, plus a margin of 0.775% to 1.375%, depending on the rating of our long-term senior unsecured debt. The annual facility fee related to the Credit Agreement is between 0.100% and 0.250% of the revolving credit commitment, depending on the rating of our long-term senior unsecured debt. Subject to certain conditions stated in the Credit Agreement, we may borrow, prepay and reborrow amounts under the Credit Agreement at any time during the term of the Credit Agreement. Funds borrowed under the Credit Agreement may be used for general corporate and working capital purposes of the Company and its subsidiaries.

The Credit Agreement also contains customary representations and warranties and affirmative and negative covenants, including financial covenants, as well as customary events of default, with corresponding grace periods, including without limitations, payment defaults, cross‑defaults to other agreements evidencing indebtedness and bankruptcy-related defaults. We were in compliance with these covenants as of December 31, 2023.

Concurrently, on June 22, 2023, we paid off and terminated all of our obligations under the Second Amended and Restated Multicurrency Credit Agreement, dated as of June 7, 2019.

At December 31, 2023, $11.6 million of letters of credit (for which we had $13.7 million of liabilities recorded at December 31, 2023) were outstanding under the Credit Agreement. See Note 17 to these consolidated financial statements for a discussion of the letters of credit. There was $245.0 million of borrowings outstanding under the Credit Agreement at December 31, 2023. Accordingly, at December 31, 2023, $1,443.4 million remained available for potential borrowings.

Premium Financing Debt Facility - On October 31, 2023, we entered into an amendment to our revolving loan facility (which we refer to as the Premium Financing Debt Facility), that provides funding for the three Australian (AU) and New Zealand (NZ) premium finance subsidiaries. The Premium Financing Debt Facility is comprised of: (i) Facility B is separated into AU$390.0 million and NZ$25.0 million tranches (the NZ$ tranche will be decreased as of May 1, 2024 to NZ$10.0 million), (ii) Facility C, an AU$60.0 million equivalent multi-currency overdraft tranche and (iii) Facility D, a NZ$15.0 million equivalent multi-currency overdraft tranche.

See Note 17 to these consolidated financial statements for additional discussion on our contractual obligations and commitments as of December 31, 2023.

The aggregate estimated fair value of the $7,498.0 million in debt under our various senior notes and note purchase agreements at December 31, 2023 was $6,840.2 million due to the long-term duration and fixed interest rates associated with these debt obligations. No active or observable market exists for our private long-term debt. Therefore, the estimated fair value of this debt is based on the income valuation approach, which is a valuation technique that converts future amounts (for example, cash flows or income and expenses) to a single current (that is, discounted) amount. The fair value measurement is determined on the basis of the value indicated by current market expectations about those future amounts. Because our debt issuances generate a measurable income stream for each lender, the income approach was deemed to be an appropriate methodology for valuing the private placement long‑term debt. The methodology used calculated the original deal spread at the time of each debt issuance,

which was equal to the difference between the yield of each issuance (the coupon rate) and the equivalent benchmark treasury yield at that time. The market spread as of the valuation date was calculated, which is equal to the difference between an index for investment grade insurers and the equivalent benchmark treasury yield today. An implied premium or discount to the par value of each debt issuance based on the difference between the origination deal spread and market as of the valuation date was then calculated. The index we relied on to represent investment graded insurers was the Bloomberg Valuation Services (BVAL) U.S. Insurers BBB index. This index is comprised primarily of insurance brokerage firms and was representative of the industry in which we operate. For the purpose of our analysis, the average BBB rate was assumed to be the appropriate borrowing rate for us. The estimated fair value of the $245.0 million of borrowings outstanding under our Credit Agreement approximate their carrying value due to their short-term duration and variable interest rates. The estimated fair value of the $289.0 million of borrowings outstanding under our Premium Financing Debt Facility approximates their carrying value due to their short-term duration and variable interest rates.

9. Earnings per Share

The following table sets forth the computation of basic and diluted net earnings per share (in millions, except per share data):

	Year Ended December 31,
	2023		2022		2021
Net earnings attributable to controlling interests	$	969.5	$	1,114.2	$	906.8
Weighted average number of common shares outstanding		214.9		210.3		202.7
Dilutive effect of stock options using the treasury stock<br> method		4.4		4.4		4.6
Weighted average number of common and common<br> equivalent shares outstanding		219.3		214.7		207.3
Basic net earnings per share	$	4.51	$	5.30	$	4.47
Diluted net earnings per share	$	4.42	$	5.19	$	4.37

Anti-dilutive stock-based awards of 0.9 million, 2.0 million and 1.3 million shares were outstanding at December 31, 2023, 2022 and 2021, respectively, but were excluded in the computation of the dilutive effect of stock‑based awards for the year then ended. These stock-based awards were excluded from the computation because the exercise prices on these stock-based awards were greater than the average market price of our common shares during the respective period, and therefore, would be anti-dilutive to earnings per share under the treasury stock method.

10. Stock Option Plans

On May 10, 2022, our stockholders approved the Arthur J. Gallagher & Co. 2022 Long-Term Incentive Plan (which we refer to as the LTIP), which replaced our previous stockholder-approved Arthur J. Gallagher & Co. 2017 Long-Term Incentive Plan (which we refer to as the 2017 LTIP). The LTIP term began May 10, 2022 and terminates on the date of the annual meeting of stockholders in 2032, unless terminated earlier by our board of directors. All of our officers, employees and non-employee directors are eligible to receive awards under the LTIP. The compensation committee of our board of directors determines the annual number of shares delivered under the LTIP. The LTIP provides for non-qualified and incentive stock options, stock appreciation rights, restricted stock and restricted stock units, any or all of which may be made contingent upon the achievement of performance criteria.

Shares of our common stock available for issuance under the LTIP include authorized and unissued shares of common stock or authorized and issued shares of common stock reacquired and held as treasury shares or otherwise, or a combination thereof. The number of available shares will be reduced by the aggregate number of shares that become subject to outstanding awards granted under the LTIP. A maximum of 3.5 million shares issued for full value awards (i.e., awards other than stock options or stock appreciation rights) will be counted one-for-one against the 13.5 million share pool, and every share subject to a full value award in excess of such limit will be counted as 3.8 shares against the pool. To the extent that shares subject to an outstanding award granted under either the LTIP or prior equity plans are not issued or delivered by reason of the expiration, termination, cancellation or forfeiture of such award or by reason of the settlement of such award in cash, then such shares will again be available for grant under the LTIP.

The maximum number of shares available under the LTIP for restricted stock, restricted stock unit awards and performance unit awards settled with stock (i.e., all awards other than stock options and stock appreciation rights) is 2.8 million as of December 31, 2023.

The LTIP provides for the grant of stock options, which may be either tax-qualified incentive stock options or non-qualified options and stock appreciation rights. The compensation committee determines the period for the exercise of a non-qualified stock option, tax-qualified incentive stock option or stock appreciation right, provided that no option can be exercised later than seven years after its date of grant. The exercise price of a non-qualified stock option or tax-qualified incentive stock option and the base price of a stock appreciation right cannot be less than 100% of the fair market value of a share of our common stock on the date of grant, provided that the base price of a stock appreciation right granted in tandem with an option will be the exercise price of the related option.

Upon exercise, the option exercise price may be paid in cash, by the delivery of previously owned shares of our common stock, through a net-exercise arrangement, or through a broker-assisted cashless exercise arrangement. The compensation committee determines all of the terms relating to the exercise, cancellation or other disposition of an option or stock appreciation right upon a termination of employment, whether by reason of disability, retirement, death or any other reason. Stock option and stock appreciation right awards under the LTIP are non-transferable.

On March 15, 2023, the compensation committee granted 1,131,000 options under the LTIP to our officers and key employees that become exercisable at the rate of 34%, 33% and 33% on the anniversary date of the grant in 2026, 2027 and 2028, respectively. On February 1, 2022 and March 15, 2022, the compensation committee granted 1,197,000 and 1,141,000 options, respectively, under the 2017 LTIP to our officers and key employees that become exercisable at the rate of 34%, 33% and 33% on the anniversary date of the grant in 2025, 2026, and 2027, respectively. On March 16, 2021, the compensation committee granted 1,640,000 options under the 2017 LTIP to our officers and key employees that become exercisable at the rate of 34%, 33% and 33% on the anniversary date of the grant in 2024, 2025 and 2026, respectively.

The 2023, 2022 and 2021 options expire seven years from the date of grant, or earlier in the event of certain terminations of employment. For our executive officers age 55 or older, stock options awarded in 2023, 2022 and 2021 are not subject to forfeiture upon such officers’ departure from the company after two years from the date of grant.

Our stock option plans provide for the immediate vesting of all outstanding stock option grants in the event of a change in control of our company, as defined in the applicable plan documents.

During 2023, 2022 and 2021, we recognized $33.5 million, $27.9 million and $17.5 million, respectively, of compensation expense related to our stock option grants.

For purposes of expense recognition in 2023, 2022 and 2021, the estimated fair values of the stock option grants are amortized to expense over the options’ vesting period. We estimated the fair value of stock options at the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions:

	Year Ended December 31,
	2023			2022			2021
Expected dividend yield		1.2	%		1.3	%		1.5	%
Expected risk-free interest rate		3.6	%		1.9	%		0.9	%
Volatility		25.0	%		23.1	%		22.9	%
Expected life (in years)		5.5			5.4			5.4

Option valuation models require the input of highly subjective assumptions including the expected stock price volatility. The Black‑Scholes option pricing model was developed for use in estimating the fair value of traded options which have no vesting restrictions and are fully transferable. The weighted average fair value per option for all options granted during 2023, 2022 and 2021, as determined on the grant date using the Black-Scholes option pricing model, was $46.48, $33.25 and $23.38, respectively.

The following is a summary of our stock option activity and related information for 2023 and 2022 (in millions, except exercise price and year data):

						Weighted
						Average
				Weighted		Remaining
	Shares			Average		Contractual		Aggregate
	Under			Exercise		Term		Intrinsic
	Option			Price		(in years)		Value
Year Ended December 31, 2023
Beginning balance		8.3		$	107.47
Granted		1.2			177.78
Exercised		(1.3	)		62.33
Forfeited or canceled		(0.3	)		143.78
Ending balance		7.9		$	123.85		3.97	$	793.9
Exercisable at end of year		1.8		$	73.04		1.63	$	266.4
Ending unvested and expected to vest		5.7		$	137.02		4.60	$	497.2
Year Ended December 31, 2022
Beginning balance		7.5		$	81.30
Granted		2.4			157.74
Exercised		(1.4	)		53.53
Forfeited or canceled		(0.2	)		109.10
Ending balance		8.3		$	107.47		4.18	$	668.9
Exercisable at end of year		1.8		$	61.11		1.56	$	230.8
Ending unvested and expected to vest		5.9		$	118.80		4.86	$	413.2

Options with respect to 12.2 million shares (less any shares of restricted stock issued under the LTIP - see Note 12 to these consolidated financial statements) were available for grant under the LTIP at December 31, 2023.

The total intrinsic value of options exercised during 2023, 2022 and 2021 amounted to $181.6 million, $168.2 million and $127.4 million, respectively. As of December 31, 2023, we had approximately $106.6 million of total unrecognized compensation expense related to nonvested options. We expect to recognize that cost over a weighted average period of approximately four years.

Other information regarding stock options outstanding and exercisable at December 31, 2023 is summarized as follows (in millions, except exercise price and year data):

						Options Outstanding						Options Exercisable
								Weighted
								Average
								Remaining		Weighted				Weighted
								Contractual		Average				Average
						Number		Term		Exercise		Number		Exercise
Range of Exercise Prices						Outstanding		(in years)		Price		Exercisable		Price
$	55.94	$	—	$	56.86	$	0.4	$	0.21	$	56.86	$	0.4	$	56.86
	70.74		—		70.74		0.6		1.21		70.74		0.6		70.74
	79.59		—		79.59		0.8		2.20		79.59		0.5		79.59
	86.17		—		86.17		1.3		3.20		86.17		0.3		86.17
	127.90		—		127.90		1.5		4.21		127.90		—		—
	156.85		—		156.85		1.0		5.09		156.85		—		—
	158.56		—		161.14		1.1		5.21		158.65		—		—
	177.09		—		202.13		1.2		6.21		177.78		—		—
$	55.94	$	—	$	202.13	$	7.9	$	3.97	$	123.85	$	1.8	$	73.04

11. Deferred Compensation

We have a Deferred Equity Participation Plan, (which we refer to as the DEPP), which is a non-qualified plan that generally provides for distributions to certain of our key executives when they reach age 62 (or the one-year anniversary of the date of the grant for participants over the age of 61 as of the grant date) or upon or after their actual retirement if later. Under the provisions of the DEPP, we typically contribute cash in an amount approved by the compensation committee to a rabbi trust on behalf of the executives participating in the DEPP, and instruct the trustee to acquire a specified number of shares of our common stock on the open market or in privately negotiated transactions based on participant elections. Distributions under the DEPP may not normally be made until the participant reaches age 62 (or the one-year anniversary of the date of the grant for participants over the age of 61 as of the grant date) and are subject to forfeiture in the event of voluntary termination of employment prior to then. DEPP awards are generally made annually in the first quarter. In addition, we annually make awards under sub-plans of the DEPP for certain production staff, which generally provide for vesting and/or distributions no sooner than five years from the date of awards, although certain awards vest and/or distribute after the earlier of fifteen years or the participant reaching age 65. All contributions to the plan (including sub-plans) deemed to be invested in shares of our common stock are distributed in the form of our common stock and all other distributions are paid in cash.

Our common stock that is issued to or purchased by the rabbi trust as a contribution under the DEPP is valued at historical cost, which equals its fair market value at the date of grant or date of purchase. When common stock is issued, we record an unearned deferred compensation obligation as a reduction of capital in excess of par value in the accompanying consolidated balance sheet, which is amortized to compensation expense ratably over the vesting period of the participants. Future changes in the fair market value of our common stock owed to the participants do not have any impact on the amounts recorded in our consolidated financial statements.

In the first quarter of each of 2023, 2022 and 2021, the compensation committee approved $25.1 million, $26.3 million and $17.0 million, respectively, of awards in the aggregate to certain key executives under the DEPP that were contributed to the rabbi trust in the first quarters of 2023, 2022 and 2021, respectively. We contributed cash to the rabbi trust and instructed the trustee to acquire a specified number of shares of our common stock on the open market to fund these 2023, 2022 and 2021 awards. During 2023, 2022 and 2021, we charged $21.7 million, $18.5 million and $14.1 million, respectively, to compensation expense related to these awards.

In 2023, 2022 and 2021, the compensation committee approved $3.0 million, $1.9 million and $3.2 million, respectively, of awards under the sub‑plans referred to above, which were contributed to the rabbi trust in first quarter 2023, 2022 and 2021, respectively. During 2023, 2022 and 2021, we charged $2.6 million, $2.3 million and $2.3 million, respectively, to compensation expense related to these awards. There were $13.8 million of distributions from the sub-plans during 2023. There were no distributions from the sub‑plans during 2022.

At December 31, 2023 and 2022, we recorded $81.1 million (related to 2.2 million shares) and $77.7 million (related to 2.5 million shares), respectively, of unearned deferred compensation as a reduction of capital in excess of par value in the accompanying consolidated balance sheet. The total intrinsic value of our unvested equity based awards under the plan at December 31, 2023 and 2022 was $504.9 million and $478.7 million, respectively. During 2023, 2022 and 2021, cash and equity awards with an aggregate fair value of $78.1 million, $45.6 million and $19.1 million, respectively, were vested and distributed to executives under the DEPP.

We have a Deferred Cash Participation Plan (which we refer to as the DCPP), which is a non-qualified deferred compensation plan for certain key employees, other than executive officers, that generally provides for vesting and/or distributions no sooner than five years from the date of awards. Under the provisions of the DCPP, we typically contribute cash in an amount approved by the compensation committee to the rabbi trust on behalf of the executives participating in the DCPP, and instruct the trustee to acquire a specified number of shares of our common stock on the open market or in privately negotiated transactions based on participant elections. In the first quarter of each of 2023, 2022 and 2021, the compensation committee approved $9.8 million, $8.3 million and $7.2 million, respectively, of awards in the aggregate to certain key executives under the DCPP that were contributed to the rabbi trust in second quarters of 2023, 2022 and 2021, respectively. During 2023, 2022 and 2021 we charged $17.3 million, $13.4 million and $9.6 million to compensation expense related to these awards. There were $23.2 million, $16.9 million and $6.7 million of distributions from the DCPP during 2023, 2022 and 2021, respectively.

12. Restricted Stock, Performance Share and Cash Awards

Restricted Stock Awards

As discussed in Note 10 to these consolidated financial statements, on May 10, 2022, our stockholders approved the LTIP, which replaced our previous stockholder-approved 2017 LTIP. The LTIP provides for the grant of a stock award either as restricted stock or as restricted stock units to officers, employees and non-employee directors. In either case, the compensation committee may determine that the award will be subject to the attainment of performance measures over an established performance period. Stock awards and the related dividend equivalents are non-transferable and subject to forfeiture if the holder does not remain continuously employed with us during the applicable restriction period or, in the case of a performance-based award, if applicable performance measures are not attained. The compensation committee will determine all of the terms relating to the satisfaction of performance measures and the termination of a restriction period, or the forfeiture and cancellation of a restricted stock award upon a termination of employment, whether by reason of disability, retirement, death or any other reason.

The agreements awarding restricted stock units under the LTIP will specify whether such awards may be settled in shares of our common stock, cash or a combination of shares and cash and whether the holder will be entitled to receive dividend equivalents, on a current or deferred basis, with respect to such award. Prior to the settlement of a restricted stock unit, the holder of a restricted stock unit will have no rights as a stockholder of the company. The maximum number of shares available under the LTIP for restricted stock, restricted stock units and performance unit awards settled with stock (i.e., all awards other than stock options and stock appreciation rights) is 4.0 million. At December 31, 2023, 2.8 million shares were available for grant under the LTIP for such awards.

In 2023, 2022 and 2021, we granted 396,913, 650,355 and 326,584 restricted stock units, respectively, to employees under the LTIP and 2017 LTIP, with an aggregate fair value of $67.0 million, $99.4 million and $40.1 million, respectively, at the date of grant.

The 2023, 2022 and 2021 restricted stock units vest as follows: 390,000 units granted in first quarter 2023, 641,000 units granted in first quarter 2022 and 314,000 units granted in first quarter 2021 vest in full based on continued employment through March 15, 2028, March 15, 2027 and March 16, 2026, respectively, while the other 2023, 2022 and 2021 restricted stock unit awards generally vest in full based on continued employment through the vesting period on the anniversary date of the grant. For our executive officers age 55 or older, restricted stock units awarded in 2023, 2022 and 2021 are not subject to forfeiture upon such officers’ departure from the company after two years from the date of grant.

The vesting periods of the 2023, 2022 and 2021 restricted stock unit awards are as follows (in actual shares):

	Restricted Stock Units Granted
Vesting Period	2023		2022		2021
One year		7,360		9,270		10,105
Two years		—		—		2,105
Five years		389,553		641,085		314,374
Total shares granted		396,913		650,355		326,584

We account for restricted stock awards at historical cost, which equals its fair market value at the date of grant, which is amortized to compensation expense ratably over the vesting period of the participants. Future changes in the fair value of our common stock that is owed to the participants do not have any impact on the amounts recorded in our consolidated financial statements. During 2023, 2022 and 2021, we charged $43.4 million, $36.4 million and $26.7 million, respectively, to compensation expense related to restricted stock awards granted in 2016 through 2022. The total intrinsic value of unvested restricted stock at December 31, 2023 and 2022 was $468.5 million and $401.3 million, respectively. During 2023 and 2022, equity awards (including accrued dividends) with an aggregate fair value of $62.2 million and $62.0 million were vested and distributed to employees under this plan.

Performance Share Awards

On March 15, 2023, March 15, 2022 and March 16, 2021, pursuant to the LTIP and 2017 LTIP, the compensation committee approved 58,000, 54,000 and 67,000, respectively of provisional performance share awards, with an aggregate fair value of $10.3 million, $8.6 million and $8.6 million, respectively, for future grants to our officers. Each performance unit award was equivalent to the value of one share of our common stock on the date such provisional award was approved. At the end of the performance period, eligible participants will receive a number of earned shares based on the growth in adjusted EBITDAC per share (as defined in the 2023 Proxy Statement). Earned shares for the 2023, 2022 and 2021 provisional awards will fully vest

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based on continuous employment through March 15, 2026, March 15, 2025 and March 16, 2024, respectively, and will be settled in unrestricted shares of our common stock on a one‑for‑one basis as soon as practicable thereafter. The 2023, 2022 and 2021 awards are subject to a three-year performance period that begins on January 1, 2023, 2022 and 2021, respectively, and vest on the three-year anniversary of the date of grant (March 15, 2026, March 15, 2025 and March 16, 2024). For certain of our executive officers age 55 or older, awards granted are no longer subject to forfeiture upon such officers’ departure from the company after two years from the date of grant. During 2023, 2022 and 2021, we recognized $20.0 million, $15.2 million and $15.9 million, respectively, to compensation expense related to performance share awards granted in 2019 through 2023. The total intrinsic value of unvested performance share awards at December 31, 2023 and 2022 was $75.2 million and $62.7 million. During 2023, 2022 and 2021, equity awards (including accrued dividends) with an aggregate fair value of $28.9 million, $21.8 million and $19.1 million were vested and distributed to employees under this plan.

Cash Awards

The Performance Unit Program (which we refer to as the Program), consists of a one-year performance period based on our financial performance and a three-year vesting period measured from January 1 of the year of grant. At the discretion of the compensation committee and determined based on our performance, the eligible officer or key employee will be granted a percentage of the provisional cash award units that equates to the EBITDAC growth achieved (as defined in the Program). At the end of the performance period, eligible participants will be granted a number of units based on achievement of the performance goal and subject to approval by the compensation committee. Granted units will fully vest based on continuous employment through the three-year vesting period. The ultimate award value will be equal to the trailing twelve‑month price of our common stock, multiplied by the number of units subject to the award, but limited to between 0.5 and 1.5 times the original value of the units determined as of the grant date. The fair value of the awarded units will be paid out in cash as soon as practicable. If an eligible employee leaves us prior to the vesting date, the entire award will be forfeited. Pursuant to the Program, there were no units granted in 2023.

On March 15, 2022, pursuant to the Program, the compensation committee approved provisional cash awards of $19.9 million in the aggregate for future grants to our officers and key employees that are denominated in units (125,000 units in the aggregate), each of which was equivalent to the value of one share of our common stock on the date the provisional award was approved. Based on our performance for 2022, we granted 122,000 units under the Program in first quarter 2023 that will fully vest on January 1, 2025. During 2023 we charged $13.4 million to compensation expense related to these awards. We did not recognize any compensation expense during 2022 related to the 2022 provisional award under the Program.

On March 16, 2021, pursuant to the Program, the compensation committee approved provisional cash awards of $18.8 million in the aggregate for future grants to our officers and key employees that are denominated in units (147,000 units in the aggregate), each of which was equivalent to the value of one share of our common stock on the date the provisional award was approved. Based on our performance for 2021, we granted 143,000 units under the Program in first quarter 2022 that will fully vest on January 1, 2024. During 2023 and 2022 we charged $13.1 million and $12.4 million, respectively, to compensation expense related to these awards. We did not recognize any compensation expense during 2021 related to the 2021 provisional award under the Program.

On March 12, 2020, pursuant to the Program, the compensation committee approved provisional cash awards of $18.4 million in the aggregate for future grants to our officers and key employees that are denominated in units (213,000 units in the aggregate), each of which was equivalent to the value of one share of our common stock on the date the provisional award was approved. Based on our performance for 2020, we granted 208,000 units under the Program in first quarter 2021 that fully vested on January 1, 2023. During 2022 and 2021, we charged $12.1 million and $12.6 million to compensation expense related to these awards. We did not recognize any compensation expense during 2020 related to the 2020 provisional award under the Program.

On March 14, 2019, pursuant to the Program, the compensation committee approved provisional cash awards of $16.5 million in the aggregate for future grants to our officers and key employees that are denominated in units (206,800 units in the aggregate), each of which was equivalent to the value of one share of our common stock on the date the provisional award was approved. Based on our performance for 2019, we granted 200,000 units under the Program in first quarter 2020 that fully vested on January 1, 2022. During 2021 and 2020, we charged $11.5 million and $10.6 million, respectively, to compensation expense related to these awards. We did not recognize any compensation expense during 2019 related to the 2019 provisional award under the Program.

During 2023, cash awards related to the 2020 provisional awards with an aggregate fair value of $24.7 million (191,000 units in the aggregate) were vested and distributed to employees under the Program. During 2022, cash awards related to the 2019 provisional awards with an aggregate fair value of $21.1 million (177,000 units in the aggregate) were vested and distributed to

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employees under the Program. During 2021, cash awards related to the 2018 provisional awards with an aggregate fair value of $17.7 million (176,300 units in the aggregate) were vested and distributed to employees under the Program.

13. Retirement Plans

We have a noncontributory defined benefit pension plan that, prior to July 1, 2005, covered substantially all of our domestic employees who had attained a specified age and one year of employment. Benefits under the plan were based on years of service and salary history. In 2005, we amended our defined benefit pension plan to freeze the accrual of future benefits for all U.S. employees, effective on July 1, 2005. Since the plan is frozen, there is no difference between the projected benefit obligation and accumulated benefit obligation at December 31, 2023 and 2022. In the table below, the service cost component represents plan administration costs that are incurred directly by the plan. A reconciliation of the beginning and ending balances of the pension benefit obligation and fair value of plan assets and the funded status of the plan is as follows (in millions):

	Year Ended December 31,
	2023			2022
Change in pension benefit obligation:
Benefit obligation at beginning of year	$	211.9		$	279.4
Service cost		3.3			0.5
Interest cost		10.7			6.8
Net actuarial loss (gain)		8.8			(58.7	)
Benefits paid		(18.7	)		(16.1	)
Benefit obligation at end of year	$	216.0		$	211.9
Change in plan assets:
Fair value of plan assets at beginning of year	$	212.5		$	282.3
Actual (loss) return on plan assets		35.1			(53.7	)
Contributions by the company		—			—
Benefits paid		(18.7	)		(16.1	)
Fair value of plan assets at end of year	$	228.9		$	212.5
Funded status of the plan (underfunded)	$	12.9		$	0.6
Amounts recognized in the consolidated balance sheet<br> consist of:
Noncurrent assets - accrued benefit liability	$	12.9		$	0.6
Accumulated other comprehensive income		37.3			54.2
Net amount included in retained earnings	$	50.2		$	54.8

The components of the net periodic pension benefit cost for the plan and other changes in plan assets and obligations recognized in earnings and other comprehensive earnings consist of the following (in millions):

	Year Ended December 31,
	2023			2022			2021
Net periodic pension cost:
Service cost	$	3.3		$	0.5		$	0.5
Interest cost on benefit obligation		10.7			6.8			6.4
Expected return on plan assets		(14.2	)		(19.1	)		(17.7	)
Amortization of net loss		4.9			2.4			5.9
Net periodic benefit income		4.7			(9.4	)		(4.9	)
Other changes in plan assets and obligations recognized<br> in other comprehensive earnings:
Net loss (gain) incurred		(12.0	)		14.1			(19.9	)
Amortization of net loss		(4.9	)		(2.4	)		(5.9	)
Total recognized in other comprehensive income (loss)		(16.9	)		11.7			(25.8	)
Total recognized in net periodic pension cost and other<br> comprehensive income (loss)	$	(12.2	)	$	2.3		$	(30.7	)

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The following weighted average assumptions were used at December 31 in determining the plan’s pension benefit obligation:

	December 31,
	2023			2022
Discount rate		4.75	%		5.25	%
Weighted average expected long-term rate of return on plan assets		7.00	%		7.00	%

The following weighted average assumptions were used at January 1 in determining the plan’s net periodic pension benefit cost:

	Year Ended December 31,
	2023			2022			2021
Discount rate		5.25	%		2.50	%		2.25	%
Weighted average expected long-term rate of return on plan assets		7.00	%		7.00	%		7.00	%

The following benefit payments are expected to be paid by the plan (in millions):

2024	$	20.2
2025		17.4
2026		17.4
2027		17.4
2028		17.2
2029 to 2033		80.0

The following is a summary of the plan’s weighted average asset at December 31 by asset category:

	December 31,
Asset Category	2023			2022
Equity securities		61.0	%		62.0	%
Debt securities		32.0	%		31.0	%
Real estate		7.0	%		7.0	%
Total		100.0	%		100.0	%

Plan assets are invested in various pooled separate accounts under annuity contracts managed by two life underwriting enterprises. The plan’s investment policy provides that investments will be allocated in a manner designed to provide a long-term investment return greater than the actuarial assumptions, maximize investment return commensurate with risk and to comply with the Employee Income Retirement Security Act of 1974, as amended (which we refer to as ERISA), by investing the funds in a manner consistent with ERISA’s fiduciary standards. The weighted average expected long-term rate of return on plan assets assumption was determined based on a review of the asset allocation strategy of the plan using expected ten-year return assumptions for all of the asset classes in which the plan was invested at December 31, 2023 and 2022. The return assumptions used in the valuation were based on data provided by the plan’s external investment advisors.

The following is a summary of the plan’s assets carried at fair value as of December 31 by level within the fair value hierarchy (in millions):

	December 31,
Fair Value Hierarchy	2023		2022
Level 1	$	—	$	—
Level 2		120.3		112.9
Level 3		108.6		99.6
Total fair value	$	228.9	$	212.5

The plan’s Level 2 assets consist of ownership interests in various pooled separate accounts within a life insurance carrier’s group annuity contract. The fair value of the pooled separate accounts is determined based on the net asset value of the respective funds, which is obtained from the underwriting enterprise and determined each business day with issuances and redemptions of units of the funds made based on the net asset value per unit as determined on the valuation date. We have not adjusted the net asset values provided by the underwriting enterprise. There are no restrictions as to the plan’s ability to redeem its investment at the net asset value of the respective funds as of the reporting date. The plan’s Level 3 assets consist of pooled separate accounts within another life insurance carrier’s annuity contracts for which fair value has been determined by an

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independent valuation. Due to the nature of these annuity contracts, our management makes assumptions to determine how a market participant would price these Level 3 assets. In determining fair value, the future cash flows to be generated by the annuity contracts were estimated using the underlying benefit provisions specified in each contract, market participant assumptions and various actuarial and financial models. These cash flows were then discounted to present value using a risk-adjusted rate that takes into consideration market based rates of return and probability-weighted present values.

The following is a reconciliation of the beginning and ending balances for the Level 3 assets of the plan measured at fair value (in millions):

	Year Ended December 31,
	2023			2022
Fair value at January 1	$	99.6		$	124.2
Settlements		(1.4	)		(1.5	)
Unrealized (loss) gain		10.4			(23.1	)
Fair value at December 31	$	108.6		$	99.6

We were not required under the IRC to make any minimum contributions to the plan for each of the 2023, 2022 and 2021 plan years. This level of required funding is based on the plan being frozen and the aggregate amount of our historical funding. During 2023, 2022 and 2021 we did not make discretionary contributions to the plan.

Through the acquisition of Buck, we acquired the assets and assumed the liabilities associated with three frozen defined benefit pension plans that provide postretirement benefits to their participants located in the U.S., U.K. and Canada (which we refer to as the Buck Pension Plans). The Buck Pension Plans were amended to freeze benefit plan accruals for all participants (closed to new entrants and existing participants do not accrue any additional benefits) effective December 31, 2014. We comply with the minimum funding requirements in these three countries and will make annual contributions to the Buck Pension Plans consistent with those funding requirements. We recognize the funded status of the Buck Pension Plans, measured as the difference between the fair value of the plan assets and the projected benefit obligation, in the accompanying December 31, 2023 consolidated balance sheet. As of December 31, 2023, the funded/(unfunded) status related to the Buck Pension Plans was $(21.6) million in the U.S., $10.8 million in the U.K. and $(1.3) million in Canada and have been recorded in other noncurrent assets and liabilities.

We also have a qualified contributory savings and thrift 401(k) plan covering the majority of our domestic employees. For eligible employees who have met the plan’s age and service requirements to receive matching contributions, we historically have matched 100% of pre-tax and Roth elective deferrals up to a maximum of 5.0% of eligible compensation, subject to federal limits on plan contributions and not in excess of the maximum amount deductible for federal income tax purposes. Beginning in 2021, the amount matched by the company will be discretionary and annually determined by management. Employees must be employed and eligible for the plan on the last day of the plan year to receive a matching contribution, subject to certain exceptions enumerated in the plan document. Matching contributions are subject to a five-year graduated vesting schedule and can be funded in cash or company stock. We expensed (net of plan forfeitures) $86.0 million, $73.8 million and $65.7 million related to the plan in 2023, 2022 and 2021, respectively. During 2021, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2021 plan year to be funded with our common stock, which was funded in February 2022. During 2022, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2022 plan year to be funded with our common stock, which was funded in February 2023. During 2023, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2023 plan year to be funded with our common stock, which is expected to be funded in February 2024.

We also have a nonqualified deferred compensation plan, the Supplemental Savings and Thrift Plan, for certain employees who, due to IRS rules, cannot take full advantage of our matching contributions under the 401(k) plan. The plan permits these employees to annually elect to defer a portion of their compensation until their retirement or a future date. Our matching contributions to this plan (up to a maximum of the lesser of a participant’s elective deferral of base salary, annual bonus and commissions or 5.0% of eligible compensation, less matching amounts contributed under the 401(k) plan) are also at the discretion of our board of directors. Matching contributions can be funded in cash or company stock. We expensed $12.3 million, $11.0 million and $8.7 million related to contributions made to a rabbi trust maintained under the plan in 2023, 2022 and 2021, respectively. During 2023, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the plan for the 2023 plan year to be funded with our common stock, which is expected to be funded in February 2024. The fair value of the assets in the plan’s rabbi trust at December 31, 2023 and 2022, including employee contributions and investment earnings, was $728.4 million and $578.2 million, respectively, and has been included in other noncurrent assets and the corresponding liability has been included in other noncurrent liabilities in the accompanying consolidated balance sheet.

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We also have several foreign benefit plans, the largest of which is a defined contribution plan that provides for us to make contributions of 5.0% of eligible compensation. In addition, the plan allows for voluntary contributions by U.K. employees, which we match 100%, up to a maximum of an additional 5.0% of eligible compensation. Net expense for foreign retirement plans amounted to $76.7 million, $62.9 million and $51.8 million in 2023, 2022 and 2021, respectively.

14. Investments

Chem-Mod LLC - At December 31, 2023, we held a 46.5% controlling interest in Chem-Mod LLC. Chem‑Mod LLC possesses the exclusive marketing rights, in the U.S. and Canada, for technologies used to reduce emissions created during the combustion of coal. Prior to 2022, the refined coal production plants discussed below, as well as those owned by other unrelated parties, licensed and used Chem-Mod LLC’s proprietary technologies, The Chem-Mod™ Solution, in the production of refined coal. The Chem‑Mod™ Solution used a dual injection sorbent system to reduce mercury, sulfur dioxide and other emissions at coal-fired power plants.

We believe that the application of The Chem-Mod™ Solution prior to 2022 qualified for refined coal tax credits under IRC Section 45 when used with refined coal production plants placed in service by December 31, of both 2011 and 2009. Chem-Mod LLC was marketing its technologies principally to coal-fired power plants owned by utility companies, including those utilities that were operating with the IRC Section 45 refined coal production plants in which we hold an investment.

Chem-Mod LLC is determined to be a variable interest entity (which we refer to as a VIE). We are the manager (decision maker) of Chem‑Mod LLC and therefore consolidate its operations into our consolidated financial statements. At December 31, 2023, total assets and total liabilities of this VIE included in our consolidated balance sheet were $0.5 million and $0.5 million, respectively. At December 31, 2022, total assets and total liabilities of this VIE included in our consolidated balance sheet were $14.8 million and $1.1 million, respectively. For 2023, total revenues and expenses were $0.4 million and $25.8 million, respectively. For 2022, total revenues and expenses were $1.0 million and $5.7 million, respectively. We are under no obligation to fund Chem-Mod’s operations in the future.

Chem-Mod International LLC - At December 31, 2023, we held a 31.5% noncontrolling ownership interest in Chem-Mod International LLC. Chem-Mod International LLC has the rights to market The Chem-Mod™ Solution in countries other than the U.S. and Canada. Such marketing activity has been limited to date.

C-Quest Technology LLC and C-Quest Technologies International LLC (which we refer together as C-Quest) - At December 31, 2023, we held a noncontrolling 12% interest in C-Quest’s global entities. C‑Quest possesses rights, information and technology for the reduction of carbon dioxide emissions created by burning fossil fuels. Thus far, C‑Quest’s operations have been limited to laboratory testing. C-Quest is determined to be a VIE, but we do not consolidate this investment into our consolidated financial statements because we are not the primary beneficiary or decision maker.

Clean Coal Investments -

• We have investments in limited liability companies that own or have owned 35 refined coal production plants which produce refined coal using proprietary technologies owned by Chem-Mod LLC. We believe the production and sale of refined coal at these plants prior to 2022 was qualified to receive refined coal tax credits under IRC Section 45. The 14 plants placed in service prior to December 31, 2009 were eligible to receive tax credits through 2019 and the 21 plants placed in service prior to December 31, 2011 were eligible to receive tax credits through 2021.

• As of December 31, 2023:

o We have a noncontrolling interest in one plant, which is owned by a limited liability company (which we refer to as a LLC). We have determined that this LLC is a VIE, for which we are not the primary beneficiary and therefore do not consolidate it. At December 31, 2023, total assets and total liabilities of this VIE were $34.5 million and $34.3 million, respectively. For 2023, there were no revenues and $(0.1) million of expenses for this VIE.

• We and our co-investors each funded our portion of the on-going operations of the limited liability companies in proportion to our investment ownership percentages. Other than our portion of the on-going operational and decommission funding, there are no additional amounts that we are committed to related to funding these investments.

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Other Investments - At December 31, 2023, we owned two noncontrolling, minority interests in startup ventures totaling $7.1 million, four venture capital funds totaling $3.2 million and five certified low-income housing developments with zero carrying value. The low-income housing developments and real estate entities have been determined to be VIEs, but are not required to be consolidated due to our lack of control over their respective operations. At December 31, 2023, total assets and total liabilities of these VIEs were approximately $4.4 million and $0.6 million, respectively.

15. Leases

We have operating leases primarily related to branch facilities, data centers, sales offices, and agent locations, automobiles and office equipment. Many of our leases include both lease (fixed rent payments) and non-lease components (common-area or other maintenance costs) which are accounted for as a single lease component as we have elected the practical expedient to group lease and non-lease components for all leases. Variable lease payments, such as periodically indexed and/or market adjustments, are presented as lease expense in the period in which they are incurred. Since we did not elect the short-term policy election, we record leases of 12 months or less on the balance sheet.

We exclude options to extend or terminate a lease from our recognition as part of our right-of-use assets and lease liabilities until those options are reasonably certain and/or executed. We do not have any material guarantees, options to purchase, or restrictive covenants related to our leases.

As our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease commencement date in determining the present value of the lease payments. We consider qualitative factors including our derived credit rating, notched adjustments for collateralization, lease term, and, if significant, adjustments to our collateralized rate to borrow in the same currency in which the lease is denominated.

The components of lease expense are as follows (in millions):

	Statement of Earnings	Year ended
Lease Components	Classification	December 31, 2023
Operating lease expense	Operating expense	$	135.1
Variable lease expense	Operating expense		26.0
Sublease income	Investment income		(1.3	)
Total net lease expense		$	159.8

Variable lease cost consist primarily of common-area and other maintenance costs for our lease facilities, as well as variable lease payments related to indexed and/or market adjustments. Our sublease income derives primarily from a few office lease arrangements and we have no significant sublease losses.

	Year ended
Supplemental Cash Flow Information Related to Leases (in millions)	December 31, 2023
Cash paid for amounts included in the measurement of<br> lease liabilities:
Operating cash flows from operating leases	$	125.1
Right-of-use assets obtained in exchange for new<br> operating lease liabilities	$	150.1

We present all noncash transactions related to adjustments to the lease liability or right-of-use asset as noncash transactions. This includes all noncash charges related to any modification or reassessment events triggering remeasurement.

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Supplemental balance sheet information related to leases is as follows (in millions, except lease term and discount rate):

Lease Components	Balance Sheet Classification	December 31, 2023
Lease right-of-use assets	Right-of-use assets	$	400.3
Other current lease liabilities	Accrued compensation and other current liabilities		84.2
Lease liabilities	Lease liabilities - noncurrent		352.2
Total lease liabilities		$	436.4
Weighted-average remaining lease term, years			5.4
Weighted-average discount rate			4.2	%

Maturities of operating lease liabilities for each of the next five years and thereafter are as follows (in millions):

2024	$	108.9
2025		100.4
2026		84.0
2027		67.6
2028		50.6
Thereafter		81.8
Total lease payments		493.3
Less interest		(56.9	)
Total	$	436.4

Our leases have remaining lease terms of

0.1

years to

13.0

years, some of which may include options to extend the leases for up to 10.0 years and some of which may include options to terminate the leases. As of December 31, 2023, we had $6.3 million of additional leases that have not yet commenced. These leases will commence in 2024 with lease terms of 1 year to

7.3

years.

16. Derivatives and Hedging Activity

Foreign Exchange Risk Management

We are exposed to foreign exchange risk when we earn revenues, pay expenses, or enter into monetary intercompany transfers denominated in a currency that differs from our functional currency, or other transactions that are denominated in a currency other than our functional currency. We use foreign exchange derivatives, typically forward contracts and options, to reduce our overall exposure to the effects of currency fluctuations on cash flows. These exposures are hedged, on average, for less than three years.

Interest Rate Risk Management

We enter into various long-term debt agreements. We use interest rate derivatives, typically swaps, to reduce our exposure to the effects of interest rate fluctuations on the forecasted interest rates for up to three years into the future.

We have not received or pledged any collateral related to derivative arrangements at December 31, 2023.

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The notional and fair values of derivatives designated as hedging instruments are as follows at December 31, 2023 and 2022 (in millions):

			Derivative Assets			Derivative Liabilities
	Notional		Balance Sheet	Fair		Balance Sheet	Fair
Instrument	Amount		Classification	Value		Classification	Value
At December 31, 2023
Interest rate contracts	$	150.0	Other current assets	$	—	Accrued compensation and	$	5.7
			Other noncurrent assets		—	other current liabilities
						Other noncurrent liabilities		—
Foreign exchange contracts (1)		67.8	Other current assets		3.9	Accrued compensation and		3.9
						other current liabilities
			Other noncurrent assets		14.2	Other noncurrent liabilities		4.0
Total	$	217.8		$	18.1		$	13.6
At December 31, 2022
Interest rate contracts	$	950.0	Other current assets	$	56.5	Accrued compensation and	$	—
			Other noncurrent assets		56.6	other current liabilities
						Other noncurrent liabilities		—
Foreign exchange contracts (1)		113.0	Other current assets		0.8	Accrued compensation and		18.5
						other current liabilities
			Other noncurrent assets		14.5	Other noncurrent liabilities		27.0
Total	$	1,063.0		$	128.4		$	45.5

(1) Included within foreign exchange contracts at December 31, 2023 were $331.3 million of call options offset with $331.3 million of put options, and $5.5 million of buy forwards offset with $73.3 million of sell forwards. Included within foreign exchange contracts at December 31, 2022 were $948.8 million of call options offset with $948.8 million of put options, and $12.4 million of buy forwards offset with $125.4 million of sell forwards.

Fair values of these hedge contracts are based on observable and unobservable inputs. Observable inputs include all of the following: quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example: interest rates and yield curves observable at commonly quoted intervals, implied volatilities, credit spreads) and market-corroborated inputs. Unobservable inputs are used to measure fair value to the extent that relevant observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date.

The effect of cash flow hedge accounting on accumulated other comprehensive loss were as follows (in millions):

Instrument	Amount of<br>Gain (Loss)<br>Recognized in<br>Accumulated<br>Other<br>Comprehensive<br>Loss (1)			Amount of <br>Gain (Loss)<br>Reclassified<br>from <br>Accumulated<br>Other<br>Comprehensive<br>Loss into<br>Earnings			Amount of<br>Gain (Loss)<br>Recognized<br>in Earnings<br>Related to<br>Amount<br>Excluded<br>from<br>Effectiveness<br>Testing			Statement of Earnings<br>Classification
Year ended December 31, 2023
Interest rate contracts	$	63.9		$	(1.1	)	$	—		Interest expense
Foreign exchange contracts		38.0			1.3			(0.1	)	Commission revenue
					(1.9	)		1.8		Compensation expense
					(1.4	)		1.3		Operating expense
Total	$	101.9		$	(3.1	)	$	3.0
Year ended December 31, 2022
Interest rate contracts	$	179.3		$	(1.2	)	$	—		Interest expense
Foreign exchange contracts		(26.8	)		6.3			(0.1	)	Commission revenue
					(1.1	)		1.9		Compensation expense
					(0.8	)		1.4		Operating expense
Total	$	152.5		$	3.2		$	3.2

(1) During 2023, the amount excluded from the assessment of hedge effectiveness for our foreign exchange contracts recognized in accumulated other comprehensive loss was a gain of $0.4 million.

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We estimate that approximately $11.1 million of pretax gain currently included within accumulated other comprehensive income will be reclassified into earnings in the next twelve months.

17. Commitments, Contingencies and Off-Balance Sheet Arrangements

In connection with our investing and operating activities, we have entered into certain contractual obligations and commitments. See Note 8 to these consolidated financial statements for additional discussion of these obligations and commitments. Our future minimum cash payments, including interest, associated with our contractual obligations pursuant to the Senior Notes, Note purchase agreements, Credit Agreement, Premium Financing Debt Facility, operating leases and purchase commitments at December 31, 2023 were as follows (in millions):

	Payments Due by Period
Contractual Obligations	2023			2024			2025			2026			2027			Thereafter			Total
Senior Notes	$	—		$	—		$	—		$	—		$	—		$	3,550.0		$	3,550.0
Note purchase agreements		425.0			200.0			640.0			478.0			200.0			2,005.0			3,948.0
Credit Agreement		245.0			—			—			—			—			—			245.0
Premium Financing Debt Facility		289.0			—			—			—			—			—			289.0
Interest on debt		311.9			317.9			299.1			280.6			261.3			3,374.8			4,845.6
Total debt obligations		1,270.9			517.9			939.1			758.6			461.3			8,929.8			12,877.6
Operating lease obligations		108.9			100.4			84.0			67.6			50.6			81.8			493.3
Less sublease arrangements		(2.4	)		(1.8	)		(1.7	)		(1.6	)		(1.1	)		(0.8	)		(9.4	)
Outstanding purchase obligations		116.5			59.0			24.9			20.2			15.0			47.1			282.7
Total contractual obligations	$	1,493.9		$	675.5		$	1,046.3		$	844.8		$	525.8		$	9,057.9		$	13,644.2

The amounts presented in the table above may not necessarily reflect our actual future cash funding requirements, because the actual timing of the future payments made may vary from the stated contractual obligation.

Senior Notes, Note Purchase Agreements, Credit Agreement and Premium Financing Debt Facility - See Note 8 to these consolidated financial statements for a summary the amounts outstanding under the Senior Notes, Note purchase agreements, the Credit Agreement and Premium Financing Debt Facility.

Operating Lease Obligations - Our corporate segment’s executive offices and certain subsidiary and branch facilities of our brokerage and risk management segments are located in a building we own at 2850 Golf Road, Rolling Meadows, Illinois, where we have approximately 360,000 square feet of space and can accommodate approximately 2,000 employees. Relating to the development of our corporate headquarters, we expect to receive property tax related credits under a tax-increment financing note from Rolling Meadows and an Illinois state Economic Development for a Growing Economy (which we refer to as EDGE) tax credit. Incentives from these two programs could total between $50.0 million and $80.0 million over a fifteen‑year period. We have earned approximately $51.3 million of EDGE credits from inception in 2017 through December 31, 2023.

We generally operate in leased premises at our other locations. Certain of these leases have options permitting renewals for additional periods. In addition to minimum fixed rentals, a number of leases contain annual escalation clauses which are generally related to increases in an inflation index.

Total rent expense, including rent relating to cancelable leases and leases with initial terms of less than one year, amounted to $183.5 million in 2023, $176.6 million in 2022 and $153.4 million in 2021.

We have leased certain office space to several non-affiliated tenants under operating sublease arrangements. In the normal course of business, we expect that certain of these leases will not be renewed or replaced. We adjust charges for real estate taxes and common area maintenance annually based on actual expenses, and we recognize the related revenues in the year in which the expenses are incurred. These amounts are not included in the minimum future rentals to be received in the contractual obligations table above.

Outstanding Purchase Obligations - We typically do not have a material amount of outstanding purchase obligations at any point in time. The amount disclosed in the contractual obligations table above represents the aggregate amount of unrecorded purchase obligations that we had outstanding at December 31, 2023. These obligations represent agreements to purchase goods or services that were executed in the normal course of business.

110

Off-Balance Sheet Commitments - Our total unrecorded commitments associated with outstanding letters of credit, financial guarantees and funding commitments at December 31, 2023 were as follows (in millions):

													Total
	Amount of Commitment Expiration by Period												Amounts
Off-Balance Sheet Commitments	2024		2025		2026		2027		2028		Thereafter		Committed
Letters of credit	$	—	$	—	$	—	$	—	$	—	$	21.2	$	21.2
Financial guarantees		2.0		0.2		0.1		0.1		—		—		2.4
Total commitments	$	2.0	$	0.2	$	0.1	$	0.1	$	—	$	21.2	$	23.6

Since commitments may expire unused, the amounts presented in the table above do not necessarily reflect our actual future cash funding requirements. See the Off-Balance Sheet Debt section below for a discussion of letters of credit. All of the letters of credit represent multiple year commitments that have annual, automatic renewing provisions and are classified by the latest commitment date.

Substantially all of the purchase agreements related to these acquisitions we do contain provisions for potential earnout obligations. For all of our acquisitions made in the period from 2020 to 2023 that contain potential earnout obligations, such obligations are measured at fair value as of the acquisition date and are included on that basis in the recorded purchase price consideration for the respective acquisition. The amounts recorded as earnout payables are primarily based upon estimated future potential operating results of the acquired entities over a two- to three-year period subsequent to the acquisition date. The aggregate amount of the maximum earnout obligations related to these acquisitions was $2,009.8 million, of which $1,294.2 million was recorded in our consolidated balance sheet as of December 31, 2023 based on the estimated fair value of the expected future payments to be made, of which approximately $564.8 million can be settled in cash or stock at our option and $729.4 million must be settled in cash.

Off-Balance Sheet Debt - Our unconsolidated investment portfolio includes investments in enterprises where our ownership interest is between 1% and 50%, in which management has determined that our level of influence and economic interest is not sufficient to require consolidation. As a result, these investments are accounted for under the equity method. None of these unconsolidated investments had any outstanding debt at December 31, 2023 and 2022 that was recourse to us.

At December 31, 2023, we had posted two letters of credit totaling $9.3 million in the aggregate, related to our self-insurance deductibles, for which we had a recorded liability of $13.7 million. We have an equity investment in a rent-a-captive facility, which we use as a placement facility for certain of our insurance brokerage operations. At December 31, 2023, we had posted nine letters of credit totaling $10.5 million to allow certain of our captive operations to meet minimum statutory surplus requirements plus additional collateral related to premium and claim funds held in a fiduciary capacity, one letter of credit totaling $0.9 million for collateral related to claim funds held in a fiduciary capacity by a recent acquisition, and one letter of credit totaling $0.5 million as security deposits for a 2015 acquisition’s lease. These letters of credit have never been drawn upon.

111

Our commitments associated with outstanding letters of credit, financial guarantees and funding commitments at December 31, 2023 were as follows (all dollar amounts in table are in millions):

Description, Purpose and Trigger	Collateral	Compensation<br>to Us	Maximum<br>Exposure		Liability<br>Recorded
Other investments
Funding commitment to an equity investment - <br> to be funded in 2024	None	None	$	—	$	—
Trigger - Agreed conditions met
Other
Credit support under letters of credit (LOC) for<br> deductibles due by us on our own insurance<br> coverages - expires after 2028	None	None		9.3		13.7
Trigger - We do not reimburse the insurance<br> companies for deductibles the insurance companies<br> advance on our behalf
Credit enhancement under letters of credit for our<br> captive insurance operations to meet minimum<br> statutory capital requirements - expires after 2024 and 2028	None	Reimbursement of LOC fees		10.5		—
Trigger - Dissolution or catastrophic financial<br> results of the operation
Collateral related to claims funds held in a fiduciary<br> capacity by a recent acquisition - expires 2028	None	None		0.9		—
Trigger - Claim payments are not made
Credit support under letters of credit in lieu of security<br> deposits for one lease from acquisitions - expires after 2028	None	None		0.5		—
Trigger - Lease payments do not get made
Financial guarantees of loans to 5 Canadian-based<br> employees - expires when loan balances are reduced<br> to zero through May 2029 - Principal and interest<br> are paid quarterly	(1)	None		0.6		—
Trigger - Default on loan payments
Financial guarantee of external loan to subsidiary in <br> Chile - expires when loan balance is reduced to<br> zero through July 2024 - Principal and interest are<br> paid quarterly	None	None		1.8		—
Trigger - Default on loan payments
			$	23.6	$	13.7

(1) The guarantees are collateralized by shares in minority holdings of our Canadian operating companies.

Since commitments may expire unused, the amounts presented in the table above do not necessarily reflect our actual future cash funding requirements.

Litigation, Regulatory and Taxation Matters - We routinely are involved in legal proceedings, claims, disputes, regulatory matters and governmental inspections or investigations arising in the ordinary course of or incidental to our business, including relating to E&O claims and those noted below in this section. We record accruals in the consolidated financial statements for pending litigation when we determine that an unfavorable outcome is probable and the amount of the loss can be reasonably estimated. For the matters we disclose that do not include an estimate of the amount of loss or range of losses, such an estimate is not possible or is immaterial, and we may be unable to estimate the possible loss or range of losses that could potentially result from the application of non-monetary remedies, unless disclosed below. We currently believe that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations or cash flows. However, legal proceedings and government investigations are subject to inherent uncertainties, and unfavorable rulings or other adverse events could occur, including the payment of substantial monetary damages or an injunction or other order prohibiting us from selling one or more products at all or in particular ways, precluding particular business practices or requiring other remedies, which may result in a material adverse impact on our business, results of operations or financial position.

112

During 2022, we received a subpoena from the FCPA Unit of the U.S. Department of Justice seeking information related to our insurance business with public entities in Ecuador. During the fourth quarter of 2023, the DOJ informed us that it had closed its inquiry and would not be pursuing enforcement action against us in connection with this matter.

In July 2019, Midwest Energy Emissions Corp. and MES Inc. (which we refer to together as Midwest Energy) filed a patent infringement lawsuit in the United States District Court for the District of Delaware against us, Chem‑Mod LLC and numerous other related and unrelated parties. The complaint alleges that the named defendants indirectly infringed patents held exclusively by Midwest Energy and sought unspecified damages and injunctive relief. During fourth quarter of 2023, we settled this matter for an amount that was not material and without admitting any wrongdoing.

As previously disclosed, our IRC 831(b) (or “micro-captive”) advisory services businesses has been under audit by the IRS since 2013. Among other matters, the IRS is investigating whether we have been acting as a tax shelter promoter in connection with these operations. Additionally, the IRS is conducting a criminal investigation related to IRC 831(b) micro-captive underwriting enterprises. We have been advised that we are not a target of the criminal investigation. We are fully cooperating with both matters.

Contingent Liabilities - We purchase insurance to provide protection from errors and omissions (which we refer to as E&O) claims that may arise during the ordinary course of business. Currently we retain the first $15.0 million of every E&O claim up to $15.0 million. In addition, we retain, in aggregate: up to another $2.0 million between $15.0 million and $100.0 million, plus up to another $10.0 million between $100.0 million and $225.0 million, and up to another $20.0 million between $225.0 million and $400.0 million. We have historically maintained self-insurance reserves for the portion of our E&O exposure that is not insured. We periodically determine a range of possible reserve levels using actuarial techniques that rely heavily on projecting historical claim data into the future. Our E&O reserve in the December 31, 2023 consolidated balance sheet is above the lower end of the most recently determined actuarial range by $6.7 million and below the upper end of the actuarial range by $6.9 million. We can make no assurances that the historical claim data used to project the current reserve levels will be indicative of future claim activity. Thus, the E&O reserve level and corresponding actuarial range could change in the future as more information becomes known, which could materially impact the amounts reported and disclosed herein.

Tax-advantaged Investments No Longer Held - Between 1996 and 2007, we developed and then sold portions of our ownership in various energy related investments, many of which qualified for tax credits under IRC Section 29. We recorded tax benefits in connection with our ownership in these investments. At December 31, 2023, we had exposure on $108.0 million of previously earned tax credits. Under the Tax Cuts and Jobs Act (which we refer to as TCJA), a portion of these previously earned tax credits were refunded in 2019 for tax year 2018, according to a specific formula. Under the Coronavirus Act, Relief, and Economic Security Act (the CARES Act), which was passed on March 27, 2020, we accelerated the refund of all remaining credits on April 17, 2020, and the remaining credits were refunded to us in the second quarter of 2020. In 2004, 2007 and 2009, the IRS examined several of these investments and all examinations were closed without any changes being proposed by the IRS. However, any future adverse tax audits, administrative rulings or judicial decisions could disallow previously claimed tax credits.

Due to the contingent nature of this exposure and our related assessment of its likelihood, no reserve has been recorded in our December 31, 2023 consolidated balance sheet related to this exposure.

18. Insurance Operations

We have ownership interests in several underwriting enterprises based in the U.S., Bermuda, Gibraltar, Guernsey and Isle of Man that primarily operate segregated account “rent-a-captive” facilities. These “rent-a-captive” facilities enable our clients to receive the benefits of owning a captive underwriting enterprise without incurring certain disadvantages of ownership. Captive underwriting enterprises, or “rent-a-captive” facilities, are created for clients to insure their risks and capture any underwriting profit and investment income, which would then be available for use by the insureds, generally to reduce future costs of their insurance programs. In general, these companies are set up as protected cell companies that are comprised of separate cell business units (which we refer to as Captive Cells) and the core regulated company (which we refer to as the Core Company). The Core Company is owned and operated by us and no insurance policies are assumed by the Core Company. All insurance is assumed or written within individual Captive Cells. Only the activity of the supporting Core Company of the rent-a-captive facility is recorded in our consolidated financial statements, including cash and stockholder’s equity of the legal entity and any expenses incurred to operate the rent-a-captive facility. Most Captive Cells reinsure individual lines of insurance coverage from external underwriting enterprises. In addition, some Captive Cells offer individual lines of insurance coverage from one of our underwriting enterprise subsidiaries. The different types of insurance coverage include special property, general liability, products liability, medical professional liability, other liability and medical stop loss. The policies are generally claims-made. Insurance policies are written by an underwriting enterprise and the risk is assumed by each of the Captive Cells. In general, we

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structure these operations to have no underwriting risk on a net written basis. In situations where we have assumed underwriting risk on a net written basis, we have managed that exposure by obtaining full collateral for the underwriting risk we have assumed from our clients. We typically require pledged assets including cash and/or investment accounts or letters of credit to limit our risk.

We have a wholly owned underwriting enterprise subsidiary based in the U.S. that cedes all of its insurance risk to reinsurers or captives under facultative and quota share treaty reinsurance agreements. This company was established in fourth quarter 2014 and began writing business in December 2014. These reinsurance arrangements diversify our business and minimize our exposure to losses or hazards of an unusual nature. The ceding of insurance does not discharge us of our primary liability to the policyholder. In the event that all or any of the reinsuring companies are unable to meet their obligations, we would be liable for such defaulted amounts. Therefore, we are subject to credit risk with respect to the obligations of our reinsurers or captives. In order to minimize our exposure to losses from reinsurer credit risk and insolvencies, we have managed that exposure by obtaining full collateral for which we typically require pledged assets, including cash and/or investment accounts or letters of credit, to fully offset the risk.

Reconciliations of direct to net premiums, on a written and earned basis, for 2023, 2022 and 2021 related to the wholly-owned underwriting enterprise subsidiary discussed above are as follows (in millions):

	2023						2022						2021
	Written			Earned			Written			Earned			Written			Earned
Direct	$	19.8		$	24.8		$	24.4		$	28.7		$	30.9		$	35.9
Assumed		—			0.4			0.4			0.2			0.2			0.2
Ceded		(19.8	)		(25.2	)		(24.8	)		(28.9	)		(31.1	)		(36.1	)
Net	$	—		$	—		$	—		$	—		$	—		$	—

At December 31, 2023 and 2022, our underwriting enterprise subsidiary had reinsurance recoverables of $14.4 million and $20.4 million, respectively, related to liabilities established for ceded unearned premium reserves and loss and loss adjustment expense reserves. These reinsurance recoverables relate to direct and assumed business that has been fully ceded to our reinsurers or captives and have been included in premiums and fees receivables in the accompanying consolidated balance sheet.

19. Income Taxes

We and our principal domestic subsidiaries are included in a consolidated U.S. federal income tax return. Our international subsidiaries file various income tax returns in their jurisdictions. Significant components of earnings before income taxes and the provision for income taxes are as follows (in millions):

	Year Ended December 31,
	2023			2022			2021
Earnings before income taxes:
United States	$	605.0		$	781.6		$	593.0
Foreign, principally Australia, Canada, New Zealand<br> and the U.K.		580.1			545.4			382.1
Total earnings before income taxes	$	1,185.1		$	1,327.0		$	975.1
Provision for income taxes:
Federal:
Current	$	(21.4	)	$	109.1		$	44.6
Deferred		112.9			(3.5	)		(151.6	)
		91.5			105.6			(107.0	)
State and local:
Current		(15.4	)		114.3			50.6
Deferred		43.0			(83.5	)		(11.6	)
		27.6			30.8			39.0
Foreign:
Current		212.8			196.6			108.8
Deferred		(112.8	)		(122.0	)		(20.7	)
		100.0			74.6			88.1
Total provision for income taxes	$	219.1		$	211.0		$	20.1

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A reconciliation of the provision for income taxes with the U.S. federal statutory income tax rate is as follows (in millions, except percentages):

	Year Ended December 31,
	2023						2022						2021
	Amount			% of Pretax<br>Earnings			Amount			% of Pretax<br>Earnings			Amount			% of Pretax<br>Earnings
Federal statutory rate	$	248.9			21.0		$	278.7			21.0		$	204.8			21.0
State income taxes - net of <br> federal benefit		49.7			4.2			32.9			2.5			30.7			3.2
Differences related to non U.S. operations		(20.6	)		(1.7	)		(31.9	)		(2.4	)		(8.7	)		(0.9	)
Alternative energy and other<br> tax credits		(7.9	)		(0.7	)		(6.9	)		(0.5	)		(199.0	)		(20.4	)
Other permanent differences		27.6			2.3			22.5			1.7			(3.5	)		(0.4	)
Stock-based compensation		(76.1	)		(6.4	)		(59.3	)		(4.5	)		(40.0	)		(4.1	)
Changes in unrecognized tax benefits		11.9			1.0			4.0			0.3			0.8			0.1
Change in valuation allowance		3.9			0.3			15.5			1.2			26.4			2.7
Change in tax rates		(18.3	)		(1.5	)		(44.5	)		(3.4	)		8.6			0.9
Provision for income taxes	$	219.1		$	18.5		$	211.0		$	15.9		$	20.1		$	2.1

A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows (in millions):

	December 31,
	2023			2022
Gross unrecognized tax benefits at January 1	$	13.4		$	11.7
Increases in tax positions for current year		14.6			3.8
Settlements		(2.9	)		(1.7	)
Lapse in statute of limitations		(3.4	)		(1.4	)
Increases in tax positions for prior years		3.6			3.1
Decreases in tax positions for prior years		—			(2.1	)
Gross unrecognized tax benefits at December 31	$	25.3		$	13.4

The total amount of net unrecognized tax benefits that, if recognized, would affect the effective tax rate was $24.5 million and $12.3 million at December 31, 2023 and 2022, respectively. We accrue interest and penalties related to unrecognized tax benefits in our provision for income taxes. At December 31, 2023 and 2022, we had accrued interest and penalties related to unrecognized tax benefits of $2.8 million and $3.4 million, respectively.

We file income tax returns in the U.S. and in various state, local and foreign jurisdictions. We are routinely examined by tax authorities in these jurisdictions. At December 31, 2023, our corporate returns had been examined by the IRS or the statute had lapsed through calendar year 2019. In addition, from 2019 forward, various state and foreign jurisdictions remain open. It is reasonably possible that our gross unrecognized tax benefits may change within the next twelve months. However, we believe any changes in the recorded balance would not have a significant impact on our consolidated financial statements.

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Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of our deferred tax assets and liabilities are as follows (in millions):

	December 31,
	2023			2022
Deferred tax assets:
Alternative minimum tax and other credit carryforwards	$	867.3		$	772.7
Accrued and unfunded compensation and employee benefits		364.4			321.8
Amortizable intangible assets		122.9			69.3
Compensation expense related to stock options		18.3			11.1
Accrued liabilities		129.9			126.6
Accrued pension liability		—			3.1
Investments		1.2			2.6
Net operating loss carryforwards		172.7			129.4
Capital loss carryforwards		8.5			8.1
Other tax attributes		34.7			—
Depreciable fixed assets		13.2			—
Lease liabilities		103.4			96.5
Capitalized indirect property costs		0.2			394.1
Revenue recognition		42.1			—
Other		10.1			4.3
Total deferred tax assets		1,888.9			1,939.6
Valuation allowance for deferred tax assets		(195.8	)		(135.2	)
Deferred tax assets		1,693.1			1,804.4
Deferred tax liabilities:
Nondeductible amortizable intangible assets		531.7			433.9
Accrued pension liability		1.7			—
Investment-related partnerships		6.5			6.6
Depreciable fixed assets		—			46.5
Right-of-use assets		95.0			88.6
Hedging instruments		38.2			10.7
Other prepaid items		17.4			11.8
Total deferred tax liabilities		690.5			598.1
Net deferred tax assets	$	1,002.6		$	1,206.3

At December 31, 2023 and 2022, $129.6 million and $92.4 million, respectively, have been included in noncurrent liabilities in the accompanying consolidated balance sheet. General business and other tax credits of $839.8 million begin to expire, if not utilized, in

2032

and state credits, net of federal benefit, of $27.5 million expire, if not used, by

2028

. Net operating loss carryforwards of $172.7 million, related to federal, state and foreign begin to expire, if not utilized in

2024

. We expect the historically favorable trend in earnings before income taxes to continue in the foreseeable future. Valuation allowances have been established for certain foreign intangible assets (including nondeductible amortization and earnout payable expenses) and various state net operating loss carryforwards that may not be utilized in the future. There are undistributed earnings of $632.3 million and $835.1 million at December 31, 2023 and 2022, respectively, of foreign subsidiaries which are considered permanently invested outside of the U.S. The amount of unrecognized deferred tax liability on these undistributed earnings was not material at December 31, 2023 and 2022. There are only select jurisdictions for which the company regards the undistributed earnings as no longer permanently reinvested. We have recognized the deferred tax liability associated with these undistributed earnings during 2023, however, such liability was also not material.

Current U.S. tax law requires U.S. shareholders to include in income certain “global intangible low-taxed income” (which we refer to as GILTI) beginning in 2018. Our policy is to include the GILTI income in the future period when the tax arises and we recorded income tax expense on such income in 2023, 2022 and 2021. Current U.S. tax law includes the U.S. Base Erosion and Anti-Abuse Tax (which we refer to as BEAT) beginning in 2018. Based on our analysis, we determined that our base erosion payments do not exceed the threshold for applicability for the years in 2023, 2022 and 2021, and we do not currently anticipate any significant long-term impact from the BEAT in our provision for income taxes in future periods.

20. Supplemental Disclosures of Cash Flow Information

	Year ended December 31,
Supplemental disclosures of cash flow information (in millions):	2023		2022		2021
Interest paid	$	270.8	$	240.2	$	215.7
Income taxes paid, net		225.8		317.6		325.4

The 2023 income taxes paid amount was favorably impacted due to the reversal of tax method changes on filing of the 2022 tax return. In 2022, we elected to defer the utilization of 2021 and 2022 net operating losses in the U.K. causing additional cash tax payments of $28.4 million relating to 2021 and $49.0 million relating to 2022. Both the U.S. and U.K. payments would have been made in future periods, and do not represent additional taxes due. In 2021, income taxes paid in the table above were net of AMT credits and $(28.5) million in 2021 due to the CARES Act. Also in 2021, the income taxes paid amount was unfavorably impacted due to payment of the $20.0 million of 2020 tax-payment deferrals (as noted in the previous sentence) and also approximately $106.0 million of tax payments made in 2021 with regards to tax method changes filed with our 2020 tax returns in the fourth quarter of 2021. Those U.S. federal method changes also affected our 2022 and 2021 estimated tax payments made in 2022 and 2021.

The following is a reconciliation of our end of period cash, cash equivalents, restricted cash and fiduciary cash balances as presented in the consolidated statement of cash flows for the years ended December 31, 2023, 2022 and 2021 (in millions):

	December 31,
	2023		2022		2021
Cash and cash equivalents - non-restricted cash	$	780.9	$	539.4	$	730.8
Cash and cash equivalents - restricted cash		190.6		199.0		136.9
Total cash and cash equivalents	$	971.5	$	738.4	$	867.7
Fiduciary cash		5,571.8		4,225.8		3,598.6
Total cash, cash equivalents, restricted cash and fiduciary cash	$	6,543.3	$	4,964.2	$	4,466.3

We have a qualified contributory savings and thrift 401(k) plan covering the majority of our domestic employees. For eligible employees who have met the plan’s age and service requirements to receive matching contributions, we historically have matched 100% of pre-tax and Roth elective deferrals up to a maximum of 5.0% of eligible compensation, subject to federal limits on plan contributions and not in excess of the maximum amount deductible for federal income tax purposes. Beginning in 2021, the amount matched by the company will be discretionary and annually determined by management. Employees must be employed and eligible for the plan on the last day of the plan year to receive a matching contribution, subject to certain exceptions enumerated in the plan document. Matching contributions are subject to a five-year graduated vesting schedule and can be funded in cash or company stock. We expensed (net of plan forfeitures) $86.0 million, $73.8 million and $65.7 million related to the plan in 2023, 2022 and 2021, respectively. During 2022, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2022 plan year to be funded with our with our common stock, which was funded in February 2023. During 2023, our board of directors authorized the 5.0% employer matching contributions on eligible compensation to the 401(k) plan for the 2023 plan year to be funded with our common stock, which is expected to be funded in February 2024.

21. Accumulated Other Comprehensive Loss

The after-tax components of our accumulated comprehensive loss attributable to controlling interests consist of the following (in millions):

	Pension<br>Liability			Foreign<br>Currency<br>Translation			Fair Value<br>of Derivative<br>Instruments			Accumulated<br>Comprehensive<br>Loss
Balance as of January 1, 2021	$	(56.1	)	$	(491.1	)	$	(96.4	)	$	(643.6	)
Net change in period		19.0			(122.3	)		20.8			(82.5	)
Balance as of December 31, 2021		(37.1	)		(613.4	)		(75.6	)		(726.1	)
Net change in period		(12.3	)		(511.8	)		109.8			(414.3	)
Balance as of December 31, 2022		(49.4	)		(1,125.2	)		34.2			(1,140.4	)
Net change in period		12.3			257.8			78.2			348.3
Balance as of December 31, 2023	$	(37.1	)	$	(867.4	)	$	112.4		$	(792.1	)

The foreign currency translation in 2023, 2022 and 2021 relates to the net impact of changes in the value of the local currencies relative to the U.S. dollar for our operations in Australia, Canada, the Caribbean, India, New Zealand, the U.K. and other non-U.S. locations. The reporting currency for our financial statements is the U.S. dollar. Certain of our assets, liabilities, expenses and revenues are denominated in currencies other than the U.S. dollar, primarily the Australian dollar, British pound, Canadian dollar, and New Zealand dollar. To prepare our consolidated financial statements, we must translate those assets, liabilities, expenses and revenues into U.S. dollars at the applicable exchange rates. Assets and liabilities of non-U.S. dollar functional currency operations are translated into U.S. dollars at end-of-period exchange rates while revenues, expenses and cash flows are translated at average monthly exchange rates over the period. Equity is translated at historical exchange rates and the resulting cumulative translation adjustments are included as a component of accumulated other comprehensive loss in the consolidated balance sheet. The net change in the foreign currency translation during 2023 primarily relates to goodwill (see Note 7 to these consolidated financial statements for the impact on goodwill) and amortizable intangible assets held by operations with a non-U.S. dollar functional currency.

During 2023, 2022 and 2021, $5.2 million, $2.2 million and $5.8 million, respectively, of expense related to the pension liability was reclassified from accumulated other comprehensive loss to compensation expense in the statement of earnings. During 2023, 2022 and 2021, $3.1 million of expense, $3.2 million of income and $5.8 million of expense, respectively, related to the fair value of derivative investments, was reclassified from accumulated other comprehensive loss to the statement of earnings. During 2023, 2022 and 2021, no amounts related to foreign currency translation were reclassified from accumulated other comprehensive loss to the statement of earnings.

22. Segment Information

We have three reportable segments: brokerage, risk management and corporate.

The brokerage segment is primarily comprised of our retail and wholesale insurance and reinsurance brokerage operations. The brokerage segment (which comprises our retail P/C, wholesale, reinsurance, benefits and captive operations) generates revenues through commissions paid by underwriting enterprises and through fees charged to our clients. Our brokers, agents and administrators act as intermediaries between underwriting enterprises and our clients and we do not assume net underwriting risks.

The risk management segment provides contract claim settlement and administration services for commercial, nonprofit, captive and public sector entities, and various organizations that choose to self-insure some or all of their property/casualty coverages and for underwriting enterprises that choose to outsource some or all of their property/casualty claims departments. These operations also provide claims management, loss control consulting and insurance property appraisal services. Revenues are principally generated on a negotiated per-claim or per-service fee basis. Our risk management segment also provides risk management consulting services that are recognized as the services are delivered.

The corporate segment manages our clean energy and other investments. In addition, the corporate segment reports the financial information related to our debt and other corporate costs, external acquisition-related expenses and the impact of foreign currency translation.

Allocations of investment income and certain expenses are based on reasonable assumptions and estimates primarily using revenue, headcount and other information. We allocate the provision for income taxes to the brokerage and risk management

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segments using the local country statutory rates. Reported operating results by segment would change if different methods were applied.

Financial information relating to our segments for 2023, 2022 and 2021 is as follows (in millions):

Year Ended December 31, 2023	Brokerage			Risk<br>Management			Corporate			Total
Revenues:
Commissions	$	5,865.0		$	—		$	—		$	5,865
Fees		1,885.0			1,259.7			—			3,144.7
Supplemental revenues		314.2			—			—			314.2
Contingent revenues		235.3			—			—			235.3
Interest income, premium finance revenues and other income		337.7			27.9			1.7			367.3
Revenues before reimbursements		8,637.2			1,287.6			1.7			9,926.5
Reimbursements		—			145.4			—			145.4
Total revenues		8,637.2			1,433.0			1.7			10,071.9
Compensation		4,769.1			776.8			135.3			5,681.2
Operating		1,272.3			257.4			160.0			1,689.7
Reimbursements		—			145.4			—			145.4
Interest		—			—			296.7			296.7
Depreciation		124.4			35.9			4.9			165.2
Amortization		523.6			7.7			—			531.3
Change in estimated acquisition earnout payables		376.8			0.5			—			377.3
Total expenses		7,066.2			1,223.7			596.9			8,886.8
Earnings (loss) before income taxes		1,571.0			209.3			(595.2	)		1,185.1
Provision (benefit) for income taxes		401.6			55.3			(237.8	)		219.1
Net earnings (loss)		1,169.4			154.0			(357.4	)		966.0
Net earnings (loss) attributable to noncontrolling interests		6.3			—			(9.8	)		(3.5	)
Net earnings (loss) attributable to controlling interests	$	1,163.1		$	154.0		$	(347.6	)	$	969.5
Net foreign exchange loss	$	(0.3	)	$	(9.9	)	$	(0.1	)	$	(10.3	)
Revenues:
United States	$	5,216.1		$	1,208.7		$	1.7		$	6,426.5
United Kingdom		1,946.5			47.6			—			1,994.1
Australia		312.1			154.7			—			466.8
Canada		397.7			6.2			—			403.9
New Zealand		192.2			15.8			—			208.0
Other foreign		572.6			—			—			572.6
Total revenues	$	8,637.2		$	1,433.0		$	1.7		$	10,071.9
At December 31, 2023
Identifiable assets:
United States	$	21,763.9		$	1,026.0		$	2,520.4		$	25,310.3
United Kingdom		15,999.7			129.9			—			16,129.6
Australia		1,969.7			469.2			—			2,438.9
Canada		1,692.9			4.1			—			1,697.0
New Zealand		773.1			20.1			—			793.2
Other foreign		5,246.8			—			—			5,246.8
Total identifiable assets	$	47,446.1		$	1,649.3		$	2,520.4		$	51,615.8
Goodwill - net	$	11,217.8		$	238.8		$	19.0		$	11,475.6
Amortizable intangible assets - net		4,427.9			205.4			—			4,633.3

119

Year Ended December 31, 2022	Brokerage		Risk<br>Management			Corporate			Total
Revenues:
Commissions	$	5,187.4	$	—		$	—		$	5,187.4
Fees		1,476.9		1,090.8			—			2,567.7
Supplemental revenues		284.7		—			—			284.7
Contingent revenues		207.3		—			—			207.3
Interest income, premium finance revenues and other income		147.5		1.8			0.7			150.0
Revenue from clean coal activities		—		—			23.0			23.0
Revenues before reimbursements		7,303.8		1,092.6			23.7			8,420.1
Reimbursements		—		130.5			—			130.5
Total revenues		7,303.8		1,223.1			23.7			8,550.6
Compensation		4,024.7		664.9			110.2			4,799.8
Operating		1,039.9		233.9			57.1			1,330.9
Reimbursements		—		130.5			—			130.5
Cost of revenues from clean coal activities		—		—			22.9			22.9
Interest		—		—			256.9			256.9
Depreciation		103.6		37.8			3.3			144.7
Amortization		448.7		6.2			—			454.9
Change in estimated acquisition earnout payables		90.4		(7.4	)		—			83.0
Total expenses		5,707.3		1,065.9			450.4			7,223.6
Earnings (loss) before income taxes		1,596.5		157.2			(426.7	)		1,327.0
Provision (benefit) for income taxes		394.7		41.4			(225.1	)		211.0
Net earnings (loss)		1,201.8		115.8			(201.6	)		1,116.0
Net earnings (loss) attributable to noncontrolling interests		4.4		—			(2.6	)		1.8
Net earnings (loss) attributable to controlling interests	$	1,197.4	$	115.8		$	(199.0	)	$	1,114.2
Net foreign exchange gain	$	2.6	$	31.4		$	—		$	34.0
Revenues:
United States	$	4,503.9	$	1,029.6		$	23.7		$	5,557.2
United Kingdom		1,544.3		44.1			—			1,588.4
Australia		281.8		129.1			—			410.9
Canada		356.0		5.9			—			361.9
New Zealand		166.9		14.4			—			181.3
Other foreign		450.9		—			—			450.9
Total revenues	$	7,303.8	$	1,223.1		$	23.7		$	8,550.6
At December 31, 2022
Identifiable assets:
United States	$	17,485.3	$	914.5		$	2,540.8		$	20,940.6
United Kingdom		9,338.5		115.9			—			9,454.4
Australia		1,792.1		89.0			—			1,881.1
Canada		1,465.3		4.4			—			1,469.7
New Zealand		730.9		18.8			—			749.7
Other foreign		3,862.9		—			—			3,862.9
Total identifiable assets	$	34,675.0	$	1,142.6		$	2,540.8		$	38,358.4
Goodwill - net	$	9,358.1	$	112.2		$	19.1		$	9,489.4
Amortizable intangible assets - net		3,325.9		46.2			—			3,372.1

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Year Ended December 31, 2021	Brokerage			Risk<br>Management		Corporate			Total
Revenues:
Commissions	$	4,132.3		$	—	$	—		$	4,132.3
Fees		1,296.9			967.2		—			2,264.1
Supplemental revenues		248.7			—		—			248.7
Contingent revenues		188.0			—		—			188.0
Interest income, premium finance revenues and other income		101.6			0.4		0.5			102.5
Revenue from clean coal activities		—			—		1,140.8			1,140.8
Revenues before reimbursements		5,967.5			967.6		1,141.3			8,076.4
Reimbursements		—			133.0		—			133.0
Total revenues		5,967.5			1,100.6		1,141.3			8,209.4
Compensation		3,252.4			580.7		94.4			3,927.5
Operating		757.9			209.8		104.7			1,072.4
Reimbursements		—			133.0		—			133.0
Cost of revenues from clean coal activities		—			—		1,173.2			1,173.2
Interest		—			—		226.1			226.1
Loss on extinguishment of debt		—			—		16.2			16.2
Depreciation		87.8			46.2		17.2			151.2
Amortization		407.6			7.5		—			415.1
Change in estimated acquisition earnout payables		116.3			3.3		—			119.6
Total expenses		4,622.0			980.5		1,631.8			7,234.3
Earnings (loss) before income taxes		1,345.5			120.1		(490.5	)		975.1
Provision (benefit) for income taxes		328.9			30.6		(339.4	)		20.1
Net earnings (loss)		1,016.6			89.5		(151.1	)		955.0
Net earnings attributable to noncontrolling interests		8.4			—		39.8			48.2
Net earnings (loss) attributable to controlling interests	$	1,008.2		$	89.5	$	(190.9	)	$	906.8
Net foreign exchange loss	$	(1.7	)	$	-	$	(0.6	)	$	(2.3	)
Revenues:
United States	$	3,804.8		$	910.7	$	1,141.3		$	5,856.8
United Kingdom		1,199.0			46.0		—			1,245.0
Australia		252.6			123.5		—			376.1
Canada		302.2			5.8		—			308.0
New Zealand		162.4			14.6		—			177.0
Other foreign		246.5			—		—			246.5
Total revenues	$	5,967.5		$	1,100.6	$	1,141.3		$	8,209.4
At December 31, 2021
Identifiable assets:
United States	$	15,136.5		$	790.2	$	2,632.6		$	18,559.3
United Kingdom		8,170.7			134.1		—			8,304.8
Australia		1,674.3			84.7		—			1,759.0
Canada		1,427.2			4.4		—			1,431.6
New Zealand		754.5			20.4		—			774.9
Other foreign		2,406.5			—		—			2,406.5
Total identifiable assets	$	29,569.7		$	1,033.8	$	2,632.6		$	33,236.1
Goodwill - net	$	8,544.6		$	100.9	$	20.7		$	8,666.2
Amortizable intangible assets - net		3,906.1			47.9		—			3,954.0

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Arthur J. Gallagher & Co.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Arthur J. Gallagher & Co. (the Company) as of December 31, 2023 and 2022, the related consolidated statements of earnings, comprehensive earnings, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2023, the related notes and the financial statement schedule listed in the Index at Item 15(2)(a) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 9, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

	Business acquisitions – accounting for acquisitions
Description of the Matter	As described in Note 3 to the consolidated financial statements, the Company completed 51 acquisitions during 2023 for total net consideration of $3,742.6 million. All the acquisitions have been accounted for using the acquisition method for recording business combinations. The excess of the purchase price over the estimated fair value of the net assets acquired, including identifiable intangible assets, at the acquisitions date was allocated to goodwill. Identifiable intangible assets from the acquisitions consists primarily of acquired customer lists of $1,721.0 million. Provisional estimates of fair value are established on the closing date of each acquisition and are subsequently reviewed and finalized within twelve months of the acquisition date.<br><br>Auditing the accounting for these acquisitions involved subjectivity in evaluating management’s estimates, specifically, the identification and measurement of intangible assets and earnout obligations. The Company, with the assistance of a third-party valuation firm, as applicable, used the discounted cash flow method to measure the fair value of the intangible assets and earnout obligations to finalize the accounting for its acquisitions. The significant assumptions used to estimate the fair value of the intangible assets and earnout obligations included, revenue growth rates, and projected profit margins.
	These assumptions are forward‑looking and could be affected by future economic and market conditions.
---	---
How We Addressed the Matter in Our Audit	We obtained an understanding, evaluated the design and tested the operating effectiveness of the controls over the Company’s accounting for acquisitions. For example, we tested controls over the recognition and measurement of assets acquired, consideration paid and payable, and management’s review of significant assumptions used to determine the fair value of intangible assets and earnout obligations of the acquisitions for which management finalized its accounting.<br><br>To test the estimated fair value of intangible assets and earnout obligations, our audit procedures included, among other things, an evaluation of the identification of intangible assets and earnout obligations based on the terms of the purchase agreements. Additionally, we have tested the significant assumptions, including, revenue growth rates, and projected profit margins, used to value the identifiable intangible assets and earnout obligations for acquisitions that the Company has deemed the accounting as final. We have also tested the completeness and accuracy of the underlying data supporting the fair value estimates. We also compared the above assumptions to the historical results of the acquired companies, past performance of similar acquisitions by the Company, and current market conditions. For select acquisitions, we utilized the assistance of our valuation specialists to evaluate the methods and assumptions used to determine the fair value of intangible assets and earnout obligations.
/s/ Ernst & Young LLP
Ernst & Young LLP
We have served as the Company’s auditor since 1973
Chicago, Illinois
February 9, 2024

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules 13a-15(f) under the Exchange Act. Under the supervision and with the participation of management, including our principal executive officer and principal financial officer, we conducted an assessment of the effectiveness of our internal control over financial reporting based on the framework in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework).

In conducting our assessment of the effectiveness of its internal control over financial reporting, we have excluded 30 of the 51 entities acquired in 2023, which are included in our 2023 consolidated financial statements. Collectively, these acquired entities constituted approximately 1.0% of total assets as of December 31, 2023, approximately 0.7% of total revenues, and approximately (2.7)% of net earnings for the year then ended.

Based on our assessment under the 2013 framework, management concluded that our internal control over financial reporting was effective as of December 31, 2023. In addition, the effectiveness of our internal control over financial reporting as of December 31, 2023, has been audited by Ernst & Young LLP, an independent registered public accounting firm, as stated in their attestation report which is included herein.

Arthur J. Gallagher & Co.
Rolling Meadows, Illinois
February 9, 2024
/s/ J. Patrick Gallagher, Jr.	/s/ Douglas K. Howell
---	---
J. Patrick Gallagher, Jr.	Douglas K. Howell
Chairman and Chief Executive Officer	Chief Financial Officer

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Arthur J. Gallagher & Co.

Opinion on Internal Control Over Financial Reporting

We have audited Arthur J. Gallagher & Co.’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), (the COSO criteria). In our opinion, Arthur J. Gallagher & Co (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on the COSO criteria.

As indicated in the accompanying Management’s Report on Internal Control Over Financial Reporting, management’s assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of 30 of the 51 entities acquired in 2023, which are included in the 2023 consolidated financial statements of the Company and constituted approximately 1.0% of total assets as of December 31, 2023, approximately 0.7% of total revenues, and approximately (2.7)% of net earnings for the year then ended. Our audit of internal control over financial reporting of the Company also did not include an evaluation of the internal control over financial reporting of these acquired entities.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2023 and 2022, the related consolidated statements of earnings, comprehensive earnings, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2023, and the related notes and financial statement schedule listed in the Index at Item 15(2)(a) and our report dated February 9, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP
Ernst & Young LLP
Chicago, Illinois
February 9, 2024

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

There were no changes in or disagreements with our accountants on matters related to accounting and financial disclosure.

Item 9A. Controls and Procedures.

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures.

We carried out an evaluation required by the Exchange Act, under the supervision and with the participation of our principal executive officer and principal financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rule 13a-15(e) of the 1934 Act, as of the end of the period covered by this report. Based on this evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the 1934 Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and to provide reasonable assurance that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Design and Evaluation of Internal Control over Financial Reporting.

Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives as specified above. Management does not expect, however, that our disclosure controls and procedures will prevent or detect all error and fraud. Any control system, no matter how well designed and operated, is based upon certain assumptions and can provide only reasonable, not absolute, assurance that its objectives will be met. Further, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, within the Company have been detected. Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, we included a report of management’s assessment of the design and effectiveness of our internal controls as part of this annual report for the fiscal year ended December 31, 2023. Our independent registered public accounting firm also attested to, and reported on, the effectiveness of internal control over financial reporting. Management’s report and the independent registered public accounting firm’s attestation report are included in Item 8, “Financial Statements and Supplementary Data,” under the captions entitled “Management’s Report on Internal Control Over Financial Reporting” and “Report of Independent Registered Public Accounting Firm on Internal Control Over Financial Reporting.”

Changes in Internal Control over Financial Reporting.

During the three-month period ended December 31, 2023, there has not occurred any change in our internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information.

During the three-month period ended December 31, 2023, no director or officer adopted or terminated any Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) of Regulation S-K.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None.

Item 10. Directors, Executive Officers and Corporate Governance.

Our 2024 Proxy Statement will include the information required by this item under the headings “Election of Directors,” “Other Board Matters,” “Board Committees” and, if necessary, “Delinquent Section 16(a) Reports,” which we incorporate herein by reference.

Item 11. Executive Compensation.

Our 2024 Proxy Statement will include the information required by this item under the headings “Compensation Committee Report” and “Compensation Discussion and Analysis,” which we incorporate herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Our 2024 Proxy Statement will include the information required by this item under the headings “Security Ownership by Certain Beneficial Owners and Management” and “Equity Compensation Plan Information,” which we incorporate herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

Our 2024 Proxy Statement will include the information required by this item under the headings “Certain Relationships and Related Transactions” and “Other Board Matters,” which we incorporate herein by reference.

Item 14. Principal Accountant Fees and Services.

Our independent registered public accounting firm is Ernst & Young LLP, Chicago, Illinois, Auditor Firm ID: 42.

Our 2024 Proxy Statement will include the information required by this item under the heading “Ratification of Appointment of Independent Auditor - Principal Accountant Fees and Services,” which we incorporate herein by reference.

Part IV

Item 15. Exhibits and Financial Statement Schedules.

The following documents are filed as a part of this report:

1. Consolidated Financial Statements:

(a) Consolidated Statement of Earnings for each of the three years in the period ended December 31, 2023.

(b) Consolidated Balance Sheet as of December 31, 2023 and 2022.

(d) Consolidated Statement of Stockholders’ Equity for each of the three years in the period ended December 31, 2023.

(e) Notes to Consolidated Financial Statements.

(f) Report of Independent Registered Public Accounting Firm on Financial Statements.

(g) Management’s Report on Internal Control Over Financial Reporting.

(h) Report of Independent Registered Public Accounting Firm on Internal Control Over Financial Reporting.

2. Consolidated Financial Statement Schedules required to be filed by Item 8 of this Form:

(a) Schedule II - Valuation and Qualifying Accounts.

All other schedules are omitted because they are not applicable, or not required, or because the required information is included in our consolidated financial statements or the notes thereto. Exhibits:

3.1	Restated Certificate of Incorporation of Arthur J. Gallagher & Co. (incorporated by reference to Exhibit 3.2 to our Form 8-K Current Report dated May 11, 2023, File No. 1-09761).
3.2	Amended and Restated By-Laws of Arthur J. Gallagher & Co. (incorporated by reference to Exhibit 3.1 to our Form 8-K Current Report dated December 6, 2022, File No. 1-09761).
4.1	Description of Securities
4.2	Indenture, dated as of May 20, 2021, between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (incorporated by reference to Exhibit 4.1 to our Form 8-K Current Report dated May 20, 2021, File No. 1-09761).
10.1	Credit Agreement, dated as of June 22, 2023, by and among Arthur J. Gallagher & Co., as borrower, Bank of America, N.A., as administrative agent and L/C issuer, and the lenders and other L/C issuers party thereto (incorporated by reference to Exhibit 10.1 to our Form 8-K Current Report dated June 23, 2023, File No. 1-09761).
10.2	First Amendment to Credit Agreement, dates as of November 7, 2023, by and among Arthur J. Gallagher & Co., as borrower, Bank of America, N.A., as administrative agent, and the lenders party thereto.
*10.3	Form of Indemnity Agreement between Arthur J. Gallagher & Co. and each of our directors and executive officers (incorporated by reference to Exhibit 10.11 to our Form 10‑Q Quarterly Report for the quarterly period ended March 31, 2009, File No. 1-09761).
*10.4	Arthur J. Gallagher & Co. Deferral Plan for Nonemployee Directors (amended and restated as of February 1, 2022) (incorporated by reference to Exhibit 10.12 to our Form 10-K Annual Report for 2022, File No. 1-09761).
*10.5	Form of Change in Control Agreement between Arthur J. Gallagher & Co. and those Executive Officers hired prior to January 1, 2008 (incorporated by reference to Exhibit 10.14.1 to our Form 10-K Annual Report for 2011, File No. 1-09761).
*10.6	Form of Change in Control Agreement between Arthur J. Gallagher & Co. and those Executive Officers hired after January 1, 2008 (incorporated by reference to Exhibit 10.14.2 to our Form 10-K Annual Report for 2011, File No. 1-09761).
*10.7	The Arthur J. Gallagher & Co. Supplemental Savings and Thrift Plan, as amended and restated effective October 20, 2020 (incorporated by reference to Exhibit 10.15 to our Form 10-K Annual Report for 2020, File No. 1-09761).
*10.8	Arthur J. Gallagher & Co., Deferred Equity Participation Plan (as amended and restated as of February 20, 2021) (incorporated by reference to Exhibit 10.16 to our Form 10-Q for the quarterly period ended March 31, 2021 File No. 1 09761).
*10.9	Form of Deferred Equity Participation Plan Award Agreement (incorporated by reference to Exhibit 10.16.1 to our Form 10-K Annual Report for 2022, File No. 1-09761).
*10.10	Arthur J. Gallagher & Co. Severance Plan (effective September 15, 1997, as amended and restated effective January 1, 2009) (incorporated by reference to Exhibit 10.17 to our Form 10-K Annual Report for 2008, File No. 1-09761).
*10.11	First Amendment to the Arthur J. Gallagher & Co. Severance Plan (effective September 15, 1997, as amended and restated effective January 1, 2009) (incorporated by reference to Exhibit 10.1 to our Form 10-Q Quarterly Report for the quarterly period ended June 30, 2010, File No. 1-09761).
*10.12	Arthur J. Gallagher & Co. Deferred Cash Participation Plan, amended and restated as of September 11, 2018 (incorporated by reference to Exhibit 10.18 to our Form 10-K Annual Report for 2019, File No. 1-09761).
*10.13	Form of Long-Term Incentive Plan Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.42.1 to our Form 10-K Annual Report for 2022, File No. 1-09761).
*10.14	Form of Long-Term Incentive Plan Stock Option Award Agreement (incorporated by reference to Exhibit 10.42.2 to our Form 10-K Annual Report for 2022, File No. 1-09761).
*10.15	Form of Long-Term Incentive Plan Stock Appreciation Rights Award Agreement (incorporated by reference to Exhibit 10.42.3 to our Form 10-K Annual Report for 2010, File No. 1-09761).
*10.16	Form of Long-Term Incentive Plan Restricted Stock Unit Award Agreement for executive officers over the age of 55 incorporated by reference to Exhibit 10.42.4 to our Form 10-K Annual Report for 2022, File No. 1-09761).
*10.17	Form of Long-Term Incentive Plan Stock Option Award Agreement for executive officers.
*10.18	Arthur J. Gallagher & Co. Performance Unit Program (incorporated by reference to Exhibit 10.43 to our Form 10-Q Quarterly Report for the quarterly period ended June 30, 2007, File No. 1-09761).
*10.19	Form of Performance Unit Grant Agreement under the Performance Unit Program (incorporated by reference to Exhibit 10.43.1 to our Form 10-K Annual Report for 2022, File No. 1-09761).
---	---
*10.20	Form of Performance Unit Grant Agreement under the Long-Term Incentive Plan for executive officers.
*10.21	Senior Management Incentive Plan (incorporated by reference to Exhibit 10.44 to our Form 10-Q Quarterly Report for the quarterly period ended June 30, 2015, File No. 1-09761).
*10.22	Arthur J. Gallagher & Co. 2017 Long-Term Incentive Plan (incorporated by reference to Exhibit 4.8 to our Form S-8 Registration Statement, File No. 333-221274).
*10.23	Arthur J. Gallagher & Co. U.K. Employee Share Incentive Plan (incorporated by reference to Exhibit 4.3 to our Form S-8 Registration Statement, File No. 333-258331).
*10.24	Form of Partnership Share Agreement under the Arthur J. Gallagher & Co. U.K. Employee Share Incentive Plan (incorporated by reference to Exhibit 4.4 to our Form S-8 Registration Statement, File No. 333-258331).
*10.25	Arthur J. Gallagher & Co. 2022 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to our Form 8-K Current Report dated May 13, 2022 File No. 1-09761).
21.1	Subsidiaries of Arthur J. Gallagher & Co., including state or other jurisdiction of incorporation or organization.
23.1	Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.
24.1	Power of Attorney.
31.1	Rule 13a-14(a) Certification of Chief Executive Officer.
31.2	Rule 13a-14(a) Certification of Chief Financial Officer.
32.1	Section 1350 Certification of Chief Executive Officer.
32.2	Section 1350 Certification of Chief Financial Officer.
97	Incentive Compensation Recovery Policy.
101.INS	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema with embedded linkbases document.
104	Cover Page Interactive Data File formatted in Inline XBRL (included as Exhibit 101).

All other exhibits are omitted because they are not applicable, or not required, or because the required information is included in our consolidated financial statements or the notes thereto. The registrant agrees to furnish to the Securities and Exchange Commission upon request a copy of any long-term debt instruments that have been omitted pursuant to Item 601(b)(4)(iii)(A) of Regulation S-K.

* Such exhibit is a management contract or compensatory plan or arrangement required to be filed as an exhibit to this form pursuant to item 601 of Regulation S-K.

Item 16. Form 10-K Summary.

None.

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on the 9th day of February, 2024.

ARTHUR J. GALLAGHER & CO.
By	/S/ J. PATRICK GALLAGHER, JR.
	J. Patrick Gallagher, Jr.
Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on the 9th day of February, 2024 by the following persons on behalf of the Registrant in the capacities indicated.

Name	Title
/S/ J. PATRICK GALLAGHER, JR.	Chairman, Chief Executive Officer and Director (Principal Executive Officer)
J. Patrick Gallagher, Jr.
/S/ DOUGLAS K. HOWELL	Vice President and Chief Financial Officer (Principal Financial Officer)
Douglas K. Howell
/S/ RICHARD C. CARY	Controller (Principal Accounting Officer)
Richard C. Cary
*SHERRY S. BARRAT	Director
Sherry S. Barrat
*WILLIAM L. BAX	Director
WILLIAM L. BAX
*TERESA H. CLARKE	Director
Teresa H. Clarke
* D. JOHN COLDMAN	Director
D. John Coldman
* DAVID S. JOHNSON	Director
David S. Johnson
*CHRISTOPHER C. MISKEL	Director
Christopher C. Miskel
* RALPH J. NICOLETTI	Director
Ralph J. Nicoletti
*NORMAN L. ROSENTHAL	Director
Norman L. Rosenthal
*By:	/S/ WALTER D. BAY
---	---
	Walter D. Bay, Attorney-in-Fact

Schedule II

Arthur J. Gallagher & Co.

Valuation and Qualifying Accounts

	Balance at<br>Beginning<br>of Year		Amounts<br>Recorded in<br>Earnings			Adjustments				Balance at<br>End<br>of Year
	(In millions)
Year ended December 31, 2023
Allowance for doubtful accounts	$	11.1	$	26.0		$	(14.1	)	(1)	$	23.0
Allowance for estimated policy cancellations		9.3		(0.5	)		1.1		(2)		9.9
Valuation allowance for deferred tax assets		135.2		60.6			—				195.8
Accumulated amortization of expiration
lists, non-compete agreements and trade names		3,300.0		531.3			42.2		(3)		3,873.5
Year ended December 31, 2022
Allowance for doubtful accounts	$	8.3	$	6.8		$	(4.0	)	(1)	$	11.1
Allowance for estimated policy cancellations		10.0		2.4			(3.1	)	(2)		9.3
Valuation allowance for deferred tax assets		154.9		(19.7	)		—				135.2
Accumulated amortization of expiration
lists, non-compete agreements and trade names		2,924.0		454.9			(78.9	)	(3)		3,300.0
Year ended December 31, 2021
Allowance for doubtful accounts	$	10.1	$	7.0		$	(8.8	)	(1)	$	8.3
Allowance for estimated policy cancellations		9.9		(1.3	)		1.4		(2)		10.0
Valuation allowance for deferred tax assets		94.9		60.0			—				154.9
Accumulated amortization of expiration
lists, non-compete agreements and trade names		2,537.0		415.1			(28.1	)	(3)		2,924.0

(1) Net activity of bad debt write offs and recoveries and acquired businesses.

(2) Additions to allowance related to acquired businesses.

(3) Elimination of fully amortized expiration lists, non-compete agreements and trade names, intangible asset/amortization reclassifications and disposal of acquired businesses.

EX-4.1

Exhibit 4.1

DESCRIPTION OF THE REGISTRANT’S SECURITIES

REGISTERED PURSUANT TO SECTION 12 OF THE

SECURITIES EXCHANGE ACT OF 1934

Arthur J. Gallagher & Co. (the “Company”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $1.00 per share (the “Common Stock”).

DESCRIPTION OF COMMON STOCK

The following summary description sets forth some of the general terms and provisions of the Common Stock. Because this is a summary description, it does not contain all of the information that may be important to you. For a more detailed description of the Common Stock, you should refer to the provisions of our Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”) and our Amended and Restated By-Laws (the “By-Laws”), each of which is an exhibit to the Annual Report on Form 10-K to which this description is an exhibit.

General

Under the Certificate of Incorporation, the Company is authorized to issue up to 400,000,000 shares of Common Stock with par value of $1.00 per share and up to 1,000,000 shares of preferred stock with no par value per share (the “Preferred Stock”). The shares of Common Stock currently outstanding are fully paid and nonassessable. No shares of Preferred Stock are currently outstanding.

No Preemptive, Redemption or Conversion Rights

The Common Stock is not subject to redemption or retirement, is not subject to sinking fund provisions, does not have any conversion rights and is not subject to call. No holder of our Common Stock has preemptive or other rights to subscribe for additional shares of any class of our stock.

Voting Rights

Each holder of our Common Stock is entitled to one vote for each share of such stock standing in his or her name on the books of the Company. Holders of shares of our Common Stock do not have cumulative voting rights in the election of directors.

Board of Directors

Our Board of Directors is not classified. Our Certificate of Incorporation establishes that the number of directors shall not be less than three nor more than fifteen, with the exact number of directors to be fixed from time to time by, or in the manner provided in, the By-Laws. The By-Laws provide that, within such limits, the number of directors shall be determined by resolution of the Board of Directors.

No Action by Stockholder Consent

The Certificate of Incorporation provides that any action required or permitted to be taken by the stockholders must be taken at a duly called annual or special meeting of the stockholders, and the power of stockholders to consent in writing, without a meeting, to the taking of any action is specifically denied.

Power to Call Special Stockholder Meeting

Under Delaware law, a special meeting of stockholders may be called by our Board of Directors or by any other person authorized to do so in the Certificate of Incorporation or By-Laws. Pursuant to our By-Laws, special meetings of the stockholders may be called by the Chairman of the Board of Directors or President. In addition, a special meeting of the stockholders shall be called by the President or Secretary at the request in writing of a majority of the Board of Directors.

Dividend Rights

The holders of our Common Stock are entitled to receive such dividends as the Board of Directors may declare from time to time, provided that any and all preferred dividends on our Preferred Stock for the then current quarter have been set aside or paid, and all prior quarterly dividends on our Preferred Stock have been paid in full.

Rights upon Liquidation

Upon our liquidation, the holders of our Common Stock will receive ratably, in proportion to the number of shares held, all of our net assets remaining after the payment of any liquidation preference payable with respect to any Preferred Stock that may then be outstanding.

Forum Selection Clause

Under our By-Laws, unless the Company selects or consents in writing to the selection of an alternative forum: (a) the sole and exclusive forum for any complaint asserting any internal corporate claims, to the fullest extent permitted by law, and subject to applicable jurisdictional requirements, shall be the Delaware Court of Chancery (or, if the Delaware Court of Chancery does not have, or declines to accept, jurisdiction, another state court or a federal court located within the State of Delaware) and (b) the sole and exclusive forum for any complaint asserting a cause of action arising under the Securities Act of 1933, to the fullest extent permitted by law, shall be the federal district courts of the United States of America. This provision applies to “internal corporate” claims, including claims in the right of the Company: (A) that are based upon a violation of a duty by a current or former director, officer, employee or stockholder in such capacity, or (B) as to which the General Corporation Law of the State of Delaware confers jurisdiction upon the Delaware Court of Chancery. In addition, under our By-Laws, any person or entity purchasing or otherwise acquiring or holding interest in shares of our stock, shall be deemed to have notice of and consented to the Forum Selection provisions of our By-Laws.

Preferred Stock

Our Preferred Stock may be issued in one or more series, and for such consideration as our Board of Directors may determine. Our Board of Directors is authorized to determine the voting power of each series of Preferred Stock, which may range from no voting power to a maximum of one vote per share. If our Board of Directors does not explicitly provide the voting power of any series of our Preferred Stock in the resolution or resolutions providing for the issuance of such series, the holders of that series of Preferred Stock have no voting power with respect to any matter. Our Board of Directors is also authorized to fix the designations, preferences and relative, participating, optional or other special rights, and qualifications, limitations or restrictions thereof, as provided for in the resolution or resolutions providing for the issuance of such shares of Preferred Stock.

EX-10.2

Exhibit 10.2

Execution Version

This FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), dated as of November 7, 2023, among Arthur J. Gallagher & Co., a Delaware corporation (the “Company”), each Lender (as defined below) party hereto as a Consenting Lender (as defined below) or an Incremental Lender (as defined below) and the Administrative Agent (as defined below), to the Credit Agreement, dated as of June 22, 2023 (as amended, restated, amended and restated, supplemented or otherwise modified from time to time prior to the date hereof, the “Credit Agreement”), among the Company, certain Subsidiaries of the Company from time to time party thereto, each Lender from time to time party thereto (the “Lenders”), Bank of America, N.A., as Administrative Agent (the “Administrative Agent”) and an L/C Issuer, and the other parties party thereto from time to time.

WHEREAS, pursuant to Section 2.15 of the Credit Agreement, the Company has requested an increase in the Aggregate Commitments in an aggregate commitment amount equal to

$500,000,000 (the “Incremental Commitments”; and the loans made pursuant to the Incremental Commitments, the “Incremental Loans”), and certain Lenders party hereto (the “Incremental Lenders”) are severally willing to provide the Incremental Commitments on the Amendment Effective Date (as defined below) in the amount set forth opposite such Incremental Lender’s name on such schedule, subject to the terms and conditions set forth in this Amendment, which increase in the Aggregate Commitments shall not require the consent of any Lender other than the Administrative Agent and each Incremental Lender;

WHEREAS, pursuant to Sections 3.03(e) and 10.01 of the Credit Agreement, the Administrative Agent, the Incremental Lenders, certain other Lenders party hereto (the “Consenting Lenders”) and the Company desire to amend the Credit Agreement to, among other things, replace the then-current Canadian Benchmark with a Canadian Benchmark Replacement for all purposes under the Credit Agreement (as amended by this Amendment) and the other Loan Documents, and to make certain Canadian Benchmark Replacement Conforming Changes in connection therewith, subject to the terms and conditions set forth in this Amendment (the “CORRA Replacement”), which CORRA Replacement shall require the consent of the Company, each Lender party to the Credit Agreement and the Administrative Agent; and

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

SECTION 1. Defined Terms. Capitalized terms used and not otherwise defined herein have the meanings assigned to them in the Credit Agreement as amended hereby.

SECTION 2. Amendments to Credit Agreement. The Credit Agreement is, effective as of the Amendment Effective Date (as defined below), hereby amended to delete the stricken text (indicated textually in the same manner as the following example: stricken text) and to add the double-underlined text (indicated textually in the same manner as the following example: double-underlined text) as set forth in the pages attached as Exhibit A hereto.

SECTION 3. Incremental Commitments.

(a) Subject to the terms and conditions set forth herein, each Incremental Lender severally agrees to provide Incremental Commitments to the Company on the Amendment Effective Date in an aggregate commitment amount equal to its Incremental Commitment set forth opposite such Incremental Lender’s name on Schedule 1 hereto.

(b) The Incremental Commitments shall take the form of an increase to the existing Aggregate Commitments, and the Incremental Commitments and the Incremental Loans shall have identical terms to the existing Commitments and the existing Loans, respectively, under the Credit Agreement.

(c) The Incremental Commitments and the Incremental Loans shall be subject to the provisions of the Credit Agreement as amended hereby and the other Loan Documents. On the Amendment Effective Date, subject to the terms and conditions set forth herein, for all purposes of the Loan Documents,

(i) each Incremental Commitment shall constitute a “Commitment”, (ii) each Incremental Loan shall constitute a “Loan” and (iii) each Incremental Lender shall be a “Lender” and shall have all of the rights and shall perform all of the obligations of a Lender holding a Commitment or a Loan, in each case, under the Credit Agreement (as amended by this Amendment).

(d) On the Amendment Effective Date, subject to the satisfaction (or waiver) of the conditions in Section 5 hereof, (i) each then-existing Lender immediately prior to the Amendment Effective Date (each, an “Existing Lender”) will automatically and without further act be deemed to have assigned to each Incremental Lender, and each Incremental Lender will automatically and without further act be deemed to have assumed, a portion of such Existing Lender’s participations under the Credit Agreement in outstanding Letters of Credit (if any) such that, after giving effect to each deemed assignment and assumption of participations, all of the Lenders’ (including each Incremental Lender) participations under the Credit Agreement as amended hereby in Letters of Credit shall be held ratably on the basis of their respective Commitments (after giving effect to the Incremental Commitments) and (ii) the Existing Lenders shall assign Loans to the Incremental Lenders, and such Incremental Lenders shall purchase such Loans, in each case to the extent necessary so that all of the Lenders participate in each outstanding Borrowing pro rata on the basis of their respective Commitments (after giving effect to the Incremental Commitments); it being understood and agreed that the minimum borrowing, pro rata borrowing and pro rata payment requirements contained in the Credit Agreement shall not apply to the transactions effected pursuant to this clause (d). If the Company anticipates there being outstanding Loans on the Amendment Effective Date immediately after giving effect to the foregoing, the Company shall have delivered a Committed Loan Notice to the Administrative Agent in accordance with Section 2.02 of the Credit Agreement.

SECTION 4. Representations and Warranties. To induce the other parties hereto to enter into this Amendment, the Company represents and warrants to the other parties hereto on the Amendment Effective Date that:

(a) this Amendment (x) has been duly authorized, executed and delivered by it, and (y) constitutes the legal, valid and binding obligation of the Company, enforceable against it in accordance with its terms, except as enforceability may be limited by Debtor Relief Laws and general equitable principles;

(b) the representations and warranties made by the Company in Article V of the Credit Agreement (as amended by this Amendment) and in the other Loan Documents are true and correct in all material respects (except that any representation and warranty that is qualified as to “materiality” or “Material Adverse Effect” shall be true and correct in all respects as so qualified) on and as of the Amendment Effective Date (both immediately before and after giving effect to the establishment of the Incremental Commitments), except to the extent that such representations and warranties specifically refer to an earlier date, in which case they shall be true and correct in all material respects as of such earlier date, and except that the representations and warranties contained in subsections (a) and (b) of Section 5.05 of the Credit Agreement shall be deemed to refer to the most recent statements furnished pursuant to subsections (a) and (b), respectively, of Section 6.01 of the Credit Agreement; and (c) no Default exists (both immediately before and after giving effect to the establishment of the Incremental Commitments).

SECTION 5. Amendment Effective Date. This Amendment shall become effective as of the first date (the “Amendment Effective Date”) on which each of the following conditions shall have been satisfied (or waived in accordance with Section 10.01 of the Credit Agreement):

(a) the Administrative Agent shall have received (i) a counterpart signature page of this Amendment duly executed by the Company, the Administrative Agent, each Incremental Lender and, solely with respect to the CORRA Replacement, each Consenting Lender and (ii) a Note executed by the Company in favor of each Incremental Lender requesting a Note at least three Business Days in advance of the Amendment Effective Date;

(b) the Administrative Agent shall have received a certificate signed by a Responsible Officer of the Company certifying (i) that the articles of formation or other comparable organizational documents of the Company, certified by the relevant authority of the jurisdiction of organization the Company and a true and complete copy of the bylaws, operating agreement or comparable governing document of the Company either (A) has not been amended since the Closing Date or (B) is attached as an exhibit to such certificate and that such documents or agreements have not been amended (except as otherwise attached to such certificate and certified therein as being the only amendments thereto as of such date), (ii) that attached thereto are the written consents of the Company’s governing body authorizing the execution, delivery, performance of, this Amendment and such written consents have not been modified, rescinded or amended and are in full force and effect on the Amendment Effective Date without amendment, modification or rescission, and (iii) as to the incumbency and genuineness of the signature of the officers or other authorized signatories of the Company executing this Amendment;

(c) the Administrative Agent shall have received a certificate as of a recent date of the good standing of the Company under the laws of its jurisdiction of organization from the relevant authority of its jurisdiction of organization (to the extent relevant and available in the jurisdiction of organization of the Company);

(d) the Administrative Agent shall have received (i) all documentation and other information from the Company reasonably requested by the Administrative Agent (on behalf of any Incremental Lender as of the Amendment Effective Date) at least five (5) days in advance of the Amendment Effective Date, in connection with applicable “know your customer” and anti-money laundering rules and regulations, including, without limitation, the PATRIOT Act, in each case at least three (3) days prior to the Amendment Effective Date and (ii) at least three (3) days prior to the Amendment Effective Date, to the extent the Company qualifies as a “legal entity customer” under the Beneficial Ownership Regulation, a Beneficial Ownership Certification in relation to the Company;

(e) the representations and warranties set forth in Section 4 of this Amendment shall be true and correct in all material respects (except that any representation and warranty that is qualified as to “materiality” or “Material Adverse Effect” shall be true and correct in all respects as so qualified) on and as of the Amendment Effective Date, except to the extent that such representations and warranties specifically refer to an earlier date, in which case they shall be true and correct as of such earlier date, and

(ii) the Administrative Agent shall have received a certificate (in form and substance reasonably acceptable to the Administrative Agent), dated as of the Amendment Effective Date and signed by a Responsible Officer of the Company, certifying as to such representations and warranties;

(f) the Administrative Agent shall have received a favorable legal opinion of each of Gibson, Dunn & Crutcher LLP, and Seth Diehl, Esq., external and in-house counsel, respectively, to the Company, addressed to the Administrative Agent and each Incremental Lender party hereto, as to matters concerning the Company and this Amendment (including enforceability of this Amendment under New York law); and

(g) the Company shall have paid (i) to the Administrative Agent (or its applicable Affiliate) any fees due and required to be paid to the Administrative Agent (or its applicable Affiliate) on the Amendment Effective Date pursuant to that certain Letter Agreement, dated as of October 23, 2023, among the Company and the Administrative Agent (or its applicable Affiliate) and (ii) subject to Section 10.04(a) of the Credit Agreement and to the extent invoiced at least one Business Day prior to the Amendment Effective Date, the reasonable out-of-pocket expenses of the Administrative Agent in connection with this Amendment, including the reasonable and documented out-of-pocket fees and expenses of one counsel for the Administrative Agent.

SECTION 6. Effect of Amendment.

(a) Except as expressly set forth herein, this Amendment shall not by implication or otherwise limit, impair, constitute a waiver of or otherwise affect the rights and remedies of the Lenders or Administrative Agent under the Credit Agreement or any other Loan Document, and shall not alter, modify, amend or in any way affect any of the terms, conditions, obligations, covenants or agreements contained in the Credit Agreement or any other provision of the Credit Agreement or of any other Loan Document, all of which are ratified and affirmed in all respects and shall continue in full force and effect. Nothing herein shall be deemed to entitle the Company to a consent to, or a waiver, amendment, modification or other change of, any of the terms, conditions, obligations, covenants or agreements contained in the Credit Agreement or any other Loan Document in similar or different circumstances.

(b) From and after the Amendment Effective Date, each reference in the Credit Agreement to “this Agreement”, “hereunder”, “hereof”, “herein”, or words of like import, and each reference to the “Credit Agreement” in any other Loan Document shall be deemed a reference to the Credit Agreement as amended hereby. This Amendment shall constitute a “Loan Document” and a “Credit Increase Amendment” for all purposes of the Credit Agreement and the other Loan Documents.

(c) The Company hereby ratifies and reaffirms all of its payment and performance obligations, contingent or otherwise, under each of the Loan Documents to which it is a party.

(d) Each Incremental Lender and Consenting Lender (which collectively constitute each Lender party to the Credit Agreement) hereby consents to the CORRA Replacement.

SECTION 7. Indemnification. The Company hereby confirms that the indemnification provisions set forth in Section 10.04 of the Credit Agreement as amended by this Amendment shall apply to this Amendment and the transactions contemplated hereby.

SECTION 8. Amendments; Severability.

(a) This Amendment may not be amended nor may any provision hereof be waived except pursuant to Section 10.01 of the Credit Agreement; and

(b) If any provision of this Amendment is held to be illegal, invalid or unenforceable, the legality, validity and enforceability of the remaining provisions of this Amendment shall not be affected

or impaired thereby. The invalidity of a provision in a particular jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

SECTION 9. Governing Law; Jurisdiction; Etc.; Waiver of Jury Trial; Electronic Execution of Assignments and Certain Other Documents. THIS AGREEMENT AND ANY CLAIMS, CONTROVERSY, DISPUTE OR CAUSE OF ACTION (WHETHER IN CONTRACT OR TORT OR OTHERWISE) BASED UPON, ARISING OUT OF OR RELATING TO THIS AGREEMENT AND THE TRANSACTIONS CONTEMPLATED HEREBY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK WITHOUT GIVING EFFECT

TO ANY CONFLICTS OF LAWS PRINCIPLES. The provisions of Sections 10.14(b), (c), (d) and 10.15 of the Credit Agreement as amended by this Amendment are incorporated herein by reference, mutatis mutandis.

SECTION 10. Headings. Section headings herein are included for convenience of reference only and shall not affect the interpretation of this Amendment.

SECTION 11. Counterparts; Integration; Effectiveness. The provisions of Sections

10.17 of the Credit Agreement as amended by this Amendment are incorporated herein by reference,

mutatis mutandis.

SECTION 12. Notice. Each Lender party hereto hereby waives the notice requirements set forth in the last sentence of Section 2.15(a) of the Credit Agreement.

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered by their respective officers thereunto duly authorized as of the date first written above.

ARTHUR J. GALLAGHER & CO., as the Company
By:	/s/ Sara Walsh Elliott
Name: Sara Walsh Elliott
Title: Assistant Treasurer