8-K

S&T BANCORP INC (STBA)

8-K 2023-10-19 For: 2023-10-19
View Original
Added on April 09, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

October 19, 2023

Date of Report (date of earliest event reported)

S&T BANCORP, INC

(Exact name of registrant as specified in its charter)

Pennsylvania 0-12508 25-1434426
(State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.)
800 Philadelphia Street Indiana PA 15701
(Address of Principal Executive Offices) (Zip Code)

(800) 325-2265

Registrant's telephone number, including area code

(Not applicable)

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class Trading Symbol(s) Name of each exchange on which registered
Common Stock, $2.50 par value STBA NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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. ☐

Item 2.02 Results of Operations and Financial Condition.

On October 19, 2023 S&T Bancorp Inc. (S&T) announced by press release its earnings for the three and nine months ended September 30, 2023. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference in this Item 2.02. The information contained in this Item 2.02 of this Report on Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Exchange Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 7.01 Regulation FD Disclosure.

In connection with the issuance of its earnings for the three and nine months ended September 30, 2023, S&T has also made available on its website materials that contain supplemental information about S&T’s financial results (“Supplemental Information”). A copy of the supplemental information is attached hereto asExhibit 99.2 and is incorporated by reference in this Item 7.01. The information contained in this Item 7.01 of this Report on Form 8-K, including Exhibit 99.2, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Exchange Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description of Exhibit
99.1 Press Release
99.2 Supplemental Information
104 Cover Page Interactive Data File (embedded in the cover page formatted in Inline XBRL)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed by the undersigned thereunto duly authorized.

S&T Bancorp, Inc.
/s/ Mark Kochvar
October 19, 2023 Mark Kochvar<br>Senior Executive Vice President,<br>Chief Financial Officer

Document

INVESTOR CONTACT:<br><br>Mark Kochvar<br><br>S&T Bancorp, Inc.<br><br>Chief Financial Officer<br><br>724.465.4826<br><br>mark.kochvar@stbank.com

FOR IMMEDIATE RELEASE

S&T Bancorp, Inc. Announces Third Quarter 2023 Net Income

INDIANA, Pa. - October 19, 2023 - S&T Bancorp, Inc. (S&T) (NASDAQ: STBA), the holding company for S&T Bank, announced net income of $33.5 million, or $0.87 per diluted share, for the third quarter of 2023 compared to net income of $34.5 million, or $0.89 per diluted share, for the second quarter of 2023 and net income of $37.2 million, or $0.95 per diluted share, for the third quarter of 2022.

Third Quarter of 2023 Highlights:

•Solid return metrics with return on average assets (ROA) of 1.42%, return on average equity (ROE) of 10.84% and return on average tangible equity (ROTE) (non-GAAP) of 15.78% compared to ROA of 1.51%, ROE of 11.23% and ROTE (non-GAAP) of 16.32% for the second quarter of 2023.

•Pre-provision net revenue to average assets (PPNR) (non-GAAP) was 1.99% compared to 2.30% for the second quarter of 2023.

•Net interest margin (NIM) (FTE) (non-GAAP) remains strong at 4.09% compared to 4.22% in the second quarter of 2023.

•Total portfolio loans increased $196.3 million, or 10.6% annualized, compared to June 30, 2023.

•Total deposits of $7.2 billion remain relatively unchanged compared to June 30, 2023.

•Nonperforming assets decreased $1.6 million to $16.4 million, or 0.22% of total loans plus other real estate owned, or OREO, compared to 0.25% at June 30, 2023.

•Net charge-offs of $3.7 million, or 0.20% of average loans (annualized), compared to net charge-offs of $11.0 million, or 0.60% of average loans (annualized), in the second quarter of 2023.

"Our third quarter performance was strong with solid return metrics," said Chris McComish, chief executive officer. "While recognizing there are challenges across the industry, we are very proud of the core earnings growth we have had in this rising interest rate environment. Our net interest margin remains strong at 4.09%. Deposit balances stabilized during the quarter and the shift in the mix of our deposits slowed considerably compared to earlier in the year. We believe our team's efforts around our customer-focused initiatives are paying off in this competitive environment."

Net Interest Income

Net interest income was $87.4 million for the third quarter of 2023 compared to $88.1 million for the second quarter of 2023. The decrease of $0.7 million in net interest income was driven by higher funding costs, partially offset by higher yields on interest-earning assets. Net interest margin on a fully taxable equivalent basis (NIM)

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S&T Earnings Release - 2

(FTE) (non-GAAP) was 4.09% compared to 4.22% in the prior quarter. The yield on total average loans increased 14 basis points to 6.15% compared to 6.01% in the second quarter of 2023 due to higher interest rates. Average loan balances increased $126.5 million to $7.4 billion compared to $7.3 billion in the second quarter of 2023. Total interest-bearing deposit costs increased 33 basis points to 2.04% compared to 1.71% in the second quarter of 2023. Higher interest-bearing deposit costs primarily related to an increase in interest rates and a continued shift in the mix of deposits with higher balances in certificates of deposit, or CDs. Average CD balances increased $147.0 million compared to the second quarter of 2023. Total borrowing costs increased 25 basis points to 5.77% compared to 5.52% in the second quarter of 2023. Average borrowings increased $58.8 million to $675.3 million compared to $616.5 million in the second quarter of 2023 due to average loan growth that exceeded average deposit growth.

Asset Quality

Total nonperforming assets decreased $1.6 million to $16.4 million at September 30, 2023 compared to $18.0 million at June 30, 2023. Nonperforming assets to total loans plus OREO decreased 3 basis points to 0.22% at September 30, 2023 compared to 0.25% at June 30, 2023. Net loan charge-offs were $3.7 million for the third quarter of 2023 compared to net loan charge-offs of $11.0 million in the second quarter of 2023. The provision for credit losses was $5.5 million for the third quarter of 2023 compared to $10.5 million in the second quarter of 2023. The decrease in the provision for credit losses primarily related to higher net charge-offs in the second quarter compared to the third quarter of 2023. The allowance for credit losses was $108.2 million, or 1.44% of total portfolio loans, as of September 30, 2023 compared to $105.8 million, or 1.44%, at June 30, 2023.

Noninterest Income and Expense

Noninterest income decreased $2.0 million to $12.2 million in the third quarter of 2023 compared to $14.2 million in the second quarter of 2023. The decrease mainly related to lower other income from changes in valuation adjustments of $1.6 million and due to a gain on OREO of $0.6 million in the second quarter of 2023. Noninterest expense increased $3.2 million to $52.8 million compared to $49.6 million in the second quarter of 2023. Salaries and employee benefits increased $2.1 million mainly due to higher incentives compared to the second quarter of 2023.

Financial Condition

Total assets were $9.5 billion at September 30, 2023 compared to $9.3 billion at June 30, 2023. Total portfolio loans increased $196.3 million, or 10.6% annualized, compared to June 30, 2023. The consumer loan portfolio increased $112.8 million with growth in residential mortgages of $97.4 million compared to June 30, 2023. The commercial loan portfolio increased $83.5 million with growth in commercial real estate of $62.1 million and commercial construction of $25.4 million compared to June 30, 2023. Total deposits increased $81.7 million compared to June 30, 2023. CDs increased $154.7 million mainly due to an increase in brokered CDs of $75.0 million and a continued shift from other deposit types compared to June 30, 2023. Total borrowings increased $94.7 million to $718.7 million compared to $624.0 million at June 30, 2023 primarily related to loan growth.

S&T continues to maintain a strong regulatory capital position with all capital ratios above the well-capitalized thresholds of federal bank regulatory agencies.

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S&T Earnings Release - 3

Conference Call

S&T will host its third quarter 2023 earnings conference call live over the Internet at 1:00 p.m. ET on Thursday, October 19, 2023. To access the webcast, go to S&T Bancorp, Inc.’s Investor Relations webpage www.stbancorp.com. After the live presentation, the webcast will be archived at www.stbancorp.com for 12 months.

About S&T Bancorp, Inc. and S&T Bank

S&T Bancorp, Inc. is a $9.5 billion bank holding company that is headquartered in Indiana, Pennsylvania and trades on the NASDAQ Global Select Market under the symbol STBA. Its principal subsidiary, S&T Bank, was established in 1902 and operates in Pennsylvania and Ohio. S&T Bank was named by Forbes as a 2023 Best-in-State Bank. For more information visit stbancorp.com or stbank.com. Follow us on Facebook, Instagram and LinkedIn.

Forward-Looking Statements

This information contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to our financial condition, results of operations, plans, objectives, outlook for earnings, revenues, expenses, capital and liquidity levels and ratios, asset levels, asset quality, financial position and other matters regarding or affecting S&T and its future business and operations. Forward-looking statements are typically identified by words or phrases such as “will likely result,” “expect,” “anticipate,” “estimate,” “forecast,” “project,” “intend,” “believe,” “assume,” “strategy,” “trend,” “plan,” “outlook,” “outcome,” “continue,” “remain,” “potential,” “opportunity,” “comfortable,” “current,” “position,” “maintain,” “sustain,” “seek,” “achieve,” and variations of such words and similar expressions, or future or conditional verbs such as will, would, should, could or may. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The matters discussed in these forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected, or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors including, but not limited to: credit losses and the credit risk of our commercial and consumer loan products; changes in the level of charge-offs and changes in estimates of the adequacy of the allowance for credit losses, or ACL; cyber-security concerns; rapid technological developments and changes; operational risks or risk management failures by us or critical third parties, including fraud risk; our ability to manage our reputational risks; sensitivity to the interest rate environment, a rapid increase in interest rates or a change in the shape of the yield curve; a change in spreads on interest-earning assets and interest-bearing liabilities; the transition from LIBOR as a reference rate; regulatory supervision and oversight, including changes in regulatory capital requirements and our ability to address those requirements; unanticipated changes in our liquidity position; unanticipated changes in regulatory and governmental policies impacting interest rates and financial markets; changes in accounting policies, practices or guidance; legislation affecting the financial services industry as a whole, and S&T, in particular; developments affecting the industry and the soundness of financial institutions and further disruption to the economy and U.S. banking system; the outcome of pending and future litigation and governmental proceedings; increasing price and product/service competition; the ability to continue to introduce competitive new products and services on a timely, cost-effective basis; managing our internal growth and acquisitions; the possibility that the anticipated benefits from acquisitions cannot be fully realized in a timely manner or at all, or

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S&T Earnings Release - 4

that integrating the acquired operations will be more difficult, disruptive or costly than anticipated; containing costs and expenses; reliance on significant customer relationships; an interruption or cessation of an important service by a third-party provider; our ability to attract and retain talented executives and employees; general economic or business conditions, including the strength of regional economic conditions in our market area; environmental, social and governance practices and disclosures, including climate change, hiring practices, the diversity of the work force, and racial and social justice issues; deterioration of the housing market and reduced demand for mortgages; deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a non-cash charge to net income; the stability of our core deposit base and access to contingency funding; re-emergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities, and indirectly, by affecting the economy generally and access to capital in the amounts, at the times and on the terms required to support our future businesses.

Many of these factors, as well as other factors, are described in our Annual Report on Form 10-K for the year ended December 31, 2022, including Part I, Item 1A-"Risk Factors" and any of our subsequent filings with the SEC. Forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. We caution you not to unduly rely on forward-looking statements because the assumptions, beliefs, expectations and projections about future events may, and often do, differ materially from actual results. Any forward-looking statement speaks only as to the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made.

Non-GAAP Financial Measures

In addition to traditional measures presented in accordance with GAAP, our management uses, and this information contains or references, certain non-GAAP financial measures, such as tangible book value, return on average tangible shareholder's equity, PPNR to average assets, efficiency ratio, tangible common equity to tangible assets and net interest margin on an FTE basis. We believe these non-GAAP financial measures provide information useful to investors in understanding our underlying operational performance and our business and performance trends as they facilitate comparisons with the performance of other companies in the financial services industry. Although we believe that these non-GAAP financial measures enhance investors’ understanding of our business and performance, these non-GAAP financial measures should not be considered alternatives to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor are they necessarily comparable with non-GAAP measures which may be presented by other companies. See Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures for more information related to these financial measures.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 5
2023 2023 2022
--- --- --- ---
Third Second Third
(dollars in thousands, except per share data) Quarter Quarter Quarter
INTEREST AND DIVIDEND INCOME
Loans, including fees 114,258 108,699 83,035
Investment Securities:
Taxable 7,857 7,806 6,305
Tax-exempt 213 215 380
Dividends 631 613 115
Total Interest and Dividend Income 122,959 117,333 89,835
INTEREST EXPENSE
Deposits 24,910 20,102 5,197
Borrowings, junior subordinated debt securities and other 10,662 9,108 840
Total Interest Expense 35,572 29,210 6,037
NET INTEREST INCOME 87,387 88,123 83,798
Provision for credit losses 5,498 10,529 2,498
Net Interest Income After Provision for Credit Losses 81,889 77,594 81,300
NONINTEREST INCOME
Net gain on sale of securities 198
Debit and credit card 4,690 4,645 4,768
Service charges on deposit accounts 4,060 3,928 4,333
Wealth management 3,003 3,185 3,212
Mortgage banking 294 289 425
Other 135 2,144 1,824
Total Noninterest Income 12,182 14,191 14,760
NONINTEREST EXPENSE
Salaries and employee benefits 27,521 25,391 26,700
Data processing and information technology 4,479 4,177 4,220
Occupancy 3,671 3,710 3,490
Furniture, equipment and software 3,125 3,192 2,915
Professional services and legal 1,965 2,069 1,851
Other taxes 1,831 1,322 1,559
Marketing 1,741 1,459 1,367
FDIC insurance 1,029 1,032 598
Other 7,441 7,281 6,933
Total Noninterest Expense 52,803 49,633 49,633
Income Before Taxes 41,268 42,152 46,427
Income tax expense 7,800 7,685 9,178
Net Income 33,468 34,467 37,249
Per Share Data
Shares outstanding at end of period 38,244,309 38,241,918 39,012,773
Average shares outstanding - diluted 38,336,016 38,614,022 38,975,145
Diluted earnings per share 0.87 0.89 0.95
Dividends declared per share 0.32 0.32 0.30
Dividend yield (annualized) 4.73 4.71 4.09
Dividends paid to net income 36.55 35.98 31.39
Book value 31.99 31.72 29.56
Tangible book value (1) 22.14 21.85 19.87
Market value 27.08 27.19 29.31
Profitability Ratios (Annualized)
Return on average assets 1.42 1.51 1.64
Return on average shareholders' equity 10.84 11.23 12.47
Return on average tangible shareholders' equity(2) 15.78 16.32 18.46
Pre-provision net revenue / average assets(3) 1.99 2.30 2.15
Efficiency ratio (FTE)(4) 52.68 48.21 50.19

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 6
Nine Months Ended September 30,
--- --- ---
(dollars in thousands, except per share data) 2023 2022
INTEREST AND DIVIDEND INCOME
Loans, including fees 325,681 218,646
Investment Securities:
Taxable 23,120 17,236
Tax-exempt 642 1,346
Dividends 1,752 315
Total Interest and Dividend Income 351,195 237,543
INTEREST EXPENSE
Deposits 59,915 8,840
Borrowings, junior subordinated debt securities and other 26,979 1,978
Total Interest Expense 86,894 10,818
NET INTEREST INCOME 264,301 226,725
Provision for credit losses 16,949 5,190
Net Interest Income After Provision for Credit Losses 247,352 221,535
NONINTEREST INCOME
Net gain on sale of securities 198
Debit and credit card 13,708 14,587
Service charges on deposit accounts 12,064 12,488
Wealth management 9,136 9,701
Mortgage banking 884 1,906
Other 3,771 3,736
Total Noninterest Income 39,563 42,616
NONINTEREST EXPENSE
Salaries and employee benefits 80,513 75,223
Data processing and information technology 12,914 12,759
Occupancy 11,216 11,006
Furniture, equipment and software 9,178 8,631
Professional services and legal 5,855 6,180
Marketing 5,053 4,252
Other taxes 4,943 4,778
FDIC insurance 3,073 2,417
Other 21,390 20,225
Total Noninterest Expense 154,135 145,471
Income Before Taxes 132,780 118,680
Income tax expense 25,046 23,430
Net Income 107,734 95,250
Per Share Data
Average shares outstanding - diluted 38,668,964 39,049,151
Diluted earnings per share 2.78 2.43
Dividends declared per share 0.96 0.89
Dividends paid to net income 34.43 36.61
Profitability Ratios (annualized)
Return on average assets 1.56 1.38
Return on average shareholders' equity 11.80 10.73
Return on average tangible shareholders' equity(5) 17.20 15.91
Pre-provision net revenue / average assets(6) 2.17 1.79
Efficiency ratio (FTE)(7) 50.42 53.75

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 7
2023 2023 2022
--- --- --- ---
Third Second Third
(dollars in thousands) Quarter Quarter Quarter
ASSETS
Cash and due from banks, including interest-bearing deposits 238,453 227,867 134,903
Securities, at fair value 955,262 970,372 997,428
Loans held for sale 257 541 1,039
Commercial loans:
Commercial real estate 3,286,272 3,224,180 3,134,841
Commercial and industrial 1,635,354 1,639,332 1,714,714
Commercial construction 388,470 363,100 390,093
Total Commercial Loans 5,310,096 5,226,612 5,239,648
Consumer loans:
Residential mortgage 1,384,133 1,286,771 1,043,973
Home equity 649,122 645,897 642,937
Installment and other consumer 115,379 115,634 126,629
Consumer construction 57,188 44,697 43,729
Total Consumer Loans 2,205,822 2,092,999 1,857,268
Total Portfolio Loans 7,515,918 7,319,611 7,096,916
Allowance for credit losses (108,206) (105,757) (99,694)
Total Portfolio Loans, Net 7,407,712 7,213,854 6,997,222
Federal Home Loan Bank and other restricted stock, at cost 38,576 31,271 10,900
Goodwill 373,424 373,424 373,424
Other assets 452,393 435,593 421,053
Total Assets 9,466,077 9,252,922 8,935,969
LIABILITIES
Deposits:
Noninterest-bearing demand 2,276,009 2,330,237 2,663,176
Interest-bearing demand 868,624 875,174 847,825
Money market 1,615,445 1,583,717 1,818,642
Savings 974,940 1,018,936 1,128,169
Certificates of deposit 1,487,879 1,333,146 952,785
Total Deposits 7,222,897 7,141,210 7,410,597
Borrowings:
Short-term borrowings 630,000 530,000 35,000
Long-term borrowings 39,396 39,513 14,853
Junior subordinated debt securities 49,343 54,483 54,438
Total Borrowings 718,739 623,996 104,291
Other liabilities 300,909 274,863 267,900
Total Liabilities 8,242,545 8,040,069 7,782,788
SHAREHOLDERS' EQUITY
Total Shareholders' Equity 1,223,532 1,212,853 1,153,181
Total Liabilities and Shareholders' Equity 9,466,077 9,252,922 8,935,969
Capitalization Ratios
Shareholders' equity / assets 12.93 13.11 12.90
Tangible common equity / tangible assets(9) 9.31 9.42 9.06
Tier 1 leverage ratio 11.12 11.12 10.75
Common equity tier 1 capital 13.11 13.07 12.53
Risk-based capital - tier 1 13.43 13.47 12.93
Risk-based capital - total 15.01 15.06 14.43

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 8
2023 2023 2022
--- --- --- ---
Third Second Third
(dollars in thousands) Quarter Quarter Quarter
Net Interest Margin (FTE) (QTD Averages)
ASSETS
Interest-bearing deposits with banks 144,303 132,900 158,700
Securities, at fair value 964,928 983,349 1,051,534
Loans held for sale 207 92 1,032
Commercial real estate 3,243,056 3,176,154 3,159,543
Commercial and industrial 1,646,572 1,684,944 1,704,271
Commercial construction 373,111 384,329 405,460
Total Commercial Loans 5,262,739 5,245,427 5,269,274
Residential mortgage 1,332,913 1,229,129 1,005,139
Home equity 645,949 647,070 629,827
Installment and other consumer 115,111 118,641 123,010
Consumer construction 52,783 42,879 40,975
Total Consumer Loans 2,146,756 2,037,719 1,798,951
Total Portfolio Loans 7,409,495 7,283,146 7,068,225
Total Loans 7,409,702 7,283,238 7,069,257
Total other earning assets 42,645 37,003 8,398
Total Interest-earning Assets 8,561,578 8,436,490 8,287,889
Noninterest-earning assets 763,243 740,299 721,480
Total Assets 9,324,821 9,176,789 9,009,369
LIABILITIES AND SHAREHOLDERS' EQUITY
Interest-bearing demand 868,782 847,776 872,302
Money market 1,595,964 1,599,051 1,861,389
Savings 996,999 1,037,924 1,131,575
Certificates of deposit 1,382,532 1,235,496 962,898
Total Interest-bearing Deposits 4,844,277 4,720,247 4,828,164
Securities sold under repurchase agreements 12,668
Short-term borrowings 585,196 529,013 10,379
Long-term borrowings 39,458 32,980 17,278
Junior subordinated debt securities 50,649 54,474 54,428
Total Borrowings 675,303 616,467 94,753
Total Other Interest-bearing Liabilities 62,584 49,572
Total Interest-bearing Liabilities 5,582,164 5,386,286 4,922,917
Noninterest-bearing liabilities 2,517,752 2,559,888 2,901,290
Shareholders' equity 1,224,905 1,230,615 1,185,162
Total Liabilities and Shareholders' Equity 9,324,821 9,176,789 9,009,369
Net Interest Margin(10)

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 9
Nine Months Ended September 30,
--- --- ---
(dollars in thousands) 2023 2022
Net Interest Margin (FTE) (YTD Averages)
ASSETS
Interest-bearing deposits with banks 139,248 478,896
Securities, at fair value 982,831 1,026,131
Loans held for sale 142 1,326
Commercial real estate 3,184,270 3,204,371
Commercial and industrial 1,680,640 1,700,923
Commercial construction 382,020 406,513
Total Commercial Loans 5,246,930 5,311,807
Residential mortgage 1,236,310 947,454
Home equity 647,785 598,595
Installment and other consumer 118,846 117,388
Consumer construction 47,203 31,407
Total Consumer Loans 2,050,144 1,694,844
Total Portfolio Loans 7,297,074 7,006,651
Total Loans 7,297,216 7,007,977
Total other earning assets 38,152 8,869
Total Interest-earning Assets 8,457,447 8,521,873
Noninterest-earning assets 752,326 706,640
Total Assets 9,209,773 9,228,513
LIABILITIES AND SHAREHOLDERS' EQUITY
Interest-bearing demand 847,222 945,733
Money market 1,621,726 1,948,653
Savings 1,041,346 1,119,739
Certificates of deposit 1,224,704 1,011,228
Total Interest-bearing deposits 4,734,998 5,025,353
Securities sold under repurchase agreements 47,912
Short-term borrowings 522,448 3,498
Long-term borrowings 29,133 20,535
Junior subordinated debt securities 53,180 54,413
Total Borrowings 604,761 126,358
Total Other Interest-bearing Liabilities 55,637
Total Interest-bearing Liabilities 5,395,396 5,151,711
Noninterest-bearing liabilities 2,593,683 2,890,375
Shareholders' equity 1,220,694 1,186,427
Total Liabilities and Shareholders' Equity 9,209,773 9,228,513
Net Interest Margin(8)

All values are in US Dollars.

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| S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited | S&T Earnings Release - | 10 | | --- | --- | --- || | 2023 | | 2023 | | 2022 | | | --- | --- | --- | --- | --- | --- | --- | | | Third | | Second | | Third | | | (dollars in thousands) | Quarter | | Quarter | | Quarter | | | Nonaccrual Loans | | | | | | | | Commercial loans: | | % Loans | | % Loans | | % Loans | | Commercial real estate | $1,735 | 0.05% | $1,859 | 0.06% | $8,556 | 0.27% | | Commercial and industrial | 3,468 | 0.21% | 4,842 | 0.30% | 3,847 | 0.22% | | Commercial construction | 384 | 0.10% | 384 | 0.11% | 384 | 0.10% | | Total Nonaccrual Commercial Loans | 5,587 | 0.11% | 7,085 | 0.14% | 12,787 | 0.24% | | Consumer loans: | | | | | | | | Residential mortgage | 4,139 | 0.30% | 4,167 | 0.32% | 7,357 | 0.70% | | Home equity | 2,617 | 0.40% | 2,700 | 0.42% | 2,216 | 0.34% | | Installment and other consumer | 334 | 0.29% | 367 | 0.32% | 417 | 0.33% | | Total Nonaccrual Consumer Loans | 7,090 | 0.32% | 7,234 | 0.35% | 9,990 | 0.54% | | Total Nonaccrual Loans | $12,677 | 0.17% | $14,319 | 0.20% | $22,777 | 0.32% || | 2023 | 2023 | 2022 | | --- | --- | --- | --- | | | Third | Second | Third | | (dollars in thousands) | Quarter | Quarter | Quarter | | Loan Charge-offs (Recoveries) | | | | | Charge-offs | $4,077 | $12,222 | $1,239 | | Recoveries | (367) | (1,255) | (529) | | Net Loan Charge-offs | $3,710 | $10,967 | $710 | | Net Loan Charge-offs (Recoveries) | | | | | Commercial loans: | | | | | Commercial real estate | (13) | (1,030) | 304 | | Commercial and industrial | 3,389 | 11,296 | 80 | | Total Commercial Loan Charge-offs | 3,376 | 10,266 | 384 | | Consumer loans: | | | | | Residential mortgage | (11) | (1) | 41 | | Home equity | 71 | (12) | 111 | | Installment and other consumer | 274 | 714 | 174 | | Total Consumer Loan Charge-offs | 334 | 701 | 326 | | Total Net Loan Charge-offs | $3,710 | $10,967 | $710 |

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| S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited | S&T Earnings Release - | 11 | | --- | --- | --- || | Nine Months Ended September 30, | | | --- | --- | --- | | (dollars in thousands) | 2023 | 2022 | | Loan Charge-offs (Recoveries) | | | | Charge-offs | $20,758 | $9,899 | | Recoveries | (11,196) | (8,213) | | Net Loan Charge-offs | $9,562 | $1,686 | | Net Loan Charge-offs (Recoveries) | | | | Commercial loans: | | | | Customer fraud | ($9,329) | $— | | Commercial real estate | (1,068) | 356 | | Commercial and industrial | 18,633 | 285 | | Commercial construction | (2) | (1) | | Total Commercial Loan Charge-offs | 8,234 | 640 | | Consumer loans: | | | | Residential mortgage | (3) | 135 | | Home equity | 90 | 97 | | Installment and other consumer | 1,241 | 814 | | Total Consumer Loan Charge-offs | 1,328 | 1,046 | | Total Net Loan Charge-offs | $9,562 | $1,686 | | | 2023 | 2023 | 2022 | | --- | --- | --- | --- | | | Third | Second | Third | | (dollars in thousands) | Quarter | Quarter | Quarter | | Asset Quality Data | | | | | Nonaccrual loans | 12,677 | 14,319 | 22,777 | | OREO | 3,715 | 3,666 | 6,022 | | Total nonperforming assets | 16,392 | 17,985 | 28,799 | | Troubled debt restructurings (nonaccruing)* | — | — | 3,860 | | Troubled debt restructurings (accruing)* | — | — | 8,925 | | Total troubled debt restructurings* | — | — | 12,785 | | Nonaccrual loans / total loans | 0.17 | 0.20 | 0.32 | | Nonperforming assets / total loans plus OREO | 0.22 | 0.25 | 0.41 | | Allowance for credit losses / total portfolio loans | 1.44 | 1.44 | 1.40 | | Allowance for credit losses / nonaccrual loans | 854 | 739 | 438 | | Net loan charge-offs (recoveries) | 3,710 | 10,967 | 710 | | Net loan charge-offs (recoveries) (annualized) / average loans | 0.20 | 0.60 | 0.04 | | *TDR's were eliminated as of January 1, 2023 as part of implementing ASU 2022-02, Financial Instruments Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures. | | | |

All values are in US Dollars.

Nine Months Ended September 30,
(dollars in thousands) 2023 2022
Asset Quality Data
Net loan charge-offs 9,562 1,686
Net loan charge-offs (annualized) / average loans 0.18 0.03

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 12

Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures:

2023 2023 2022
Third Second Third
(dollars and shares in thousands) Quarter Quarter Quarter
(1) Tangible Book Value (non-GAAP)
Total shareholders' equity 1,223,532 1,212,853 1,153,181
Less: goodwill and other intangible assets, net of deferred tax liability (376,883) (377,144) (377,961)
Tangible common equity (non-GAAP) 846,649 835,709 775,220
Common shares outstanding 38,244 38,242 39,013
Tangible book value (non-GAAP) 22.14 21.85 19.87
Tangible book value is a preferred industry metric used to measure our company's value and commonly used by investors and analysts.
(2) Return on Average Tangible Shareholders' Equity (non-GAAP)
Net income (annualized) 132,779 138,248 147,781
Plus: amortization of intangibles (annualized), net of tax 1,034 1,046 1,181
Net income before amortization of intangibles (annualized) 133,813 139,294 148,962
Average total shareholders' equity 1,224,905 1,230,615 1,185,162
Less: average goodwill and other intangible assets, net of deferred tax liability (377,020) (377,280) (378,154)
Average tangible equity (non-GAAP) 847,885 853,335 807,008
Return on average tangible shareholders' equity (non-GAAP) 15.78 16.32 18.46
Return on average tangible shareholders' equity is a key profitability metric used by management to measure financial performance.
(3) Pre-provision Net Revenue / Average Assets (non-GAAP)
Income before taxes 41,268 42,152 46,427
Plus: Provision for credit losses 5,498 10,529 2,498
Total 46,766 52,681 48,925
Total (annualized) (non-GAAP) 185,538 211,302 194,106
Average assets 9,324,821 9,176,789 9,009,369
Pre-provision Net Revenue / Average Assets (non-GAAP) 1.99 2.30 2.15
Pre-provision net revenue to average assets is income before taxes adjusted to exclude provision for credit losses. We believe this to be a preferred industry measurement to help evaluate our ability to fund credit losses or build capital.
(4) Efficiency Ratio (non-GAAP)
Noninterest expense 52,803 49,633 49,633
Net interest income per consolidated statements of net income 87,387 88,123 83,798
Plus: taxable equivalent adjustment 674 639 521
Net interest income (FTE) (non-GAAP) 88,061 88,762 84,319
Noninterest income 12,182 14,191 14,760
Less: net gains on sale of securities (198)
Net interest income (FTE) (non-GAAP) plus noninterest income 100,243 102,953 98,881
Efficiency ratio (non-GAAP) 52.68 48.21 50.19
The efficiency ratio is noninterest expense divided by noninterest income plus net interest income, on an FTE basis (non-GAAP), which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice.

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 13
Nine Months Ended September 30,
--- --- ---
(dollars in thousands) 2023 2022
(5) Return on Average Tangible Shareholders' Equity (non-GAAP)
Net income (annualized) 144,040 127,350
Plus: amortization of intangibles (annualized), net of tax 1,055 1,217
Net income before amortization of intangibles (annualized) 145,095 128,567
Average total shareholders' equity 1,220,694 1,186,427
Less: average goodwill and other intangible assets, net of deferred tax liability (377,290) (378,454)
Average tangible equity (non-GAAP) 843,404 807,973
Return on average tangible shareholders' equity (non-GAAP) 17.20 15.91
Return on average tangible shareholders' equity is a key profitability metric used by management to measure financial performance.
(6) Pre-provision Net Revenue / Average Assets (non-GAAP)
Income before taxes 132,780 118,680
Plus: Provision for credit losses 16,949 5,190
Total 149,729 123,870
Total (annualized) (non-GAAP) 200,186 165,614
Average assets 9,209,773 9,228,513
Pre-provision Net Revenue / Average Assets (non-GAAP) 2.17 1.79
Pre-provision net revenue to average assets is income before taxes adjusted to exclude provision for credit losses. We believe this to be a preferred industry measurement to help evaluate our ability to fund credit losses or build capital.
(7) Efficiency Ratio (non-GAAP)
Noninterest expense 154,135 145,471
Net interest income per consolidated statements of net income 264,301 226,725
Plus: taxable equivalent adjustment 1,868 1,520
Net interest income (FTE) (non-GAAP) 266,169 228,245
Noninterest income 39,563 42,616
Less: net gains on sale of securities (198)
Net interest income (FTE) (non-GAAP) plus noninterest income 305,732 270,663
Efficiency ratio (non-GAAP) 50.42 53.75
The efficiency ratio is noninterest expense divided by noninterest income plus net interest income, on an FTE basis (non-GAAP), which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice.
(8) Net Interest Margin Rate (FTE) (non-GAAP)
Interest income and dividend income 351,195 237,543
Less: interest expense (86,894) (10,818)
Net interest income per consolidated statements of net income 264,301 226,725
Plus: taxable equivalent adjustment 1,868 1,520
Net interest income (FTE) (non-GAAP) 266,169 228,245
Net interest income (FTE) (annualized) 355,867 305,163
Average interest-earning assets 8,457,447 8,521,873
Net interest margin - (FTE) (non-GAAP) 4.21 3.58
The interest income on interest-earning assets, net interest income and net interest margin are presented on an FTE basis (non-GAAP). The FTE basis (non-GAAP) adjusts for the tax benefit of income on certain tax-exempt loans and securities and the dividend-received deduction for equity securities using the federal statutory tax rate of 21 percent for each period. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable sources of interest income.

All values are in US Dollars.

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S&T Bancorp, Inc.<br><br>Consolidated Selected Financial Data<br><br>Unaudited S&T Earnings Release - 14

Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures:

2023 2023 2022
Third Second Third
(dollars in thousands) Quarter Quarter Quarter
(9) Tangible Common Equity / Tangible Assets (non-GAAP)
Total shareholders' equity 1,223,532 1,212,853 1,153,181
Less: goodwill and other intangible assets, net of deferred tax liability (376,883) (377,144) (377,961)
Tangible common equity (non-GAAP) 846,649 835,709 775,220
Total assets 9,466,077 9,252,922 8,935,969
Less: goodwill and other intangible assets, net of deferred tax liability (376,883) (377,144) (377,961)
Tangible assets (non-GAAP) 9,089,194 8,875,778 8,558,008
Tangible common equity to tangible assets (non-GAAP) 9.31 9.42 9.06
Tangible common equity to tangible assets is a preferred industry measurement to evaluate capital adequacy.
(10) Net Interest Margin Rate (FTE) (non-GAAP)
Interest income and dividend income 122,959 117,333 89,835
Less: interest expense (35,572) (29,210) (6,037)
Net interest income per consolidated statements of net income 87,387 88,123 83,798
Plus: taxable equivalent adjustment 674 639 521
Net interest income (FTE) (non-GAAP) 88,061 88,762 84,319
Net interest income (FTE) (annualized) 349,373 356,022 334,526
Average interest-earning assets 8,561,578 8,436,490 8,287,889
Net interest margin (FTE) (non-GAAP) 4.09 4.22 4.04
The interest income on interest-earning assets, net interest income and net interest margin are presented on an FTE basis (non-GAAP). The FTE basis (non-GAAP) adjusts for the tax benefit of income on certain tax-exempt loans and securities and the dividend-received deduction for equity securities using the federal statutory tax rate of 21 percent for each period. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable sources of interest income.

All values are in US Dollars.

a3q23earningssupplement

Third Quarter 2023 Earnings Supplement


Forward Looking Statements and Risk Factors This information contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to our financial condition, results of operations, plans, objectives, outlook for earnings, revenues, expenses, capital and liquidity levels and ratios, asset levels, asset quality, financial position and other matters regarding or affecting S&T and its future business and operations. Forward-looking statements are typically identified by words or phrases such as “will likely result,” “expect,” “anticipate,” “estimate,” “forecast,” “project,” “intend,” “believe,” “assume,” “strategy,” “trend,” “plan,” “outlook,” “outcome,” “continue,” “remain,” “potential,” “opportunity,” “comfortable,” “current,” “position,” “maintain,” “sustain,” “seek,” “achieve,” and variations of such words and similar expressions, or future or conditional verbs such as will, would, should, could or may. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The matters discussed in these forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected, or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors including, but not limited to: credit losses and the credit risk of our commercial and consumer loan products; changes in the level of charge-offs and changes in estimates of the adequacy of the allowance for credit losses, or ACL; cyber-security concerns; rapid technological developments and changes; operational risks or risk management failures by us or critical third parties, including fraud risk; our ability to manage our reputational risks; sensitivity to the interest rate environment, a rapid increase in interest rates or a change in the shape of the yield curve; a change in spreads on interest-earning assets and interest-bearing liabilities; the transition from LIBOR as a reference rate; regulatory supervision and oversight, including changes in regulatory capital requirements and our ability to address those requirements; unanticipated changes in our liquidity position; unanticipated changes in regulatory and governmental policies impacting interest rates and financial markets; changes in accounting policies, practices or guidance; legislation affecting the financial services industry as a whole, and S&T, in particular; developments affecting the industry and the soundness of financial institutions and further disruption to the economy and U.S. banking system; the outcome of pending and future litigation and governmental proceedings; increasing price and product/service competition; the ability to continue to introduce competitive new products and services on a timely, cost-effective basis; managing our internal growth and acquisitions; the possibility that the anticipated benefits from acquisitions cannot be fully realized in a timely manner or at all, or that integrating the acquired operations will be more difficult, disruptive or costly than anticipated; containing costs and expenses; reliance on significant customer relationships; an interruption or cessation of an important service by a third-party provider; our ability to attract and retain talented executives and employees; general economic or business conditions, including the strength of regional economic conditions in our market area; environmental, social and governance practices and disclosures, including climate change, hiring practices, the diversity of the work force, and racial and social justice issues; deterioration of the housing market and reduced demand for mortgages; deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a non-cash charge to net income; the stability of our core deposit base and access to contingency funding; re-emergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities, and indirectly, by affecting the economy generally and access to capital in the amounts, at the times and on the terms required to support our future businesses. Many of these factors, as well as other factors, are described in our Annual Report on Form 10-K for the year ended December 31, 2022, including Part I, Item 1A-"Risk Factors" and any of our subsequent filings with the SEC. Forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. We caution you not to unduly rely on forward-looking statements because the assumptions, beliefs, expectations and projections about future events may, and often do, differ materially from actual results. Any forward-looking statement speaks only as to the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made. Non-GAAP Financial Measures In addition to the traditional measures presented in accordance with Generally Accepted Accounting Principles (GAAP), S&T management uses and this presentation contains or references certain non-GAAP financial measures, such as net interest income on a fully taxable equivalent basis. S&T believes these non-GAAP financial measures provide information useful to investors in understanding our underlying business, operational performance and performance trends which facilitate comparisons with the performance of others in the financial services industry. Although S&T believes that these non-GAAP financial measures enhance investors’ understanding of S&T’s business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor are they necessarily comparable with non-GAAP measures which may be presented by other companies. The non-GAAP financial measures contained within this presentation should be read in conjunction with the audited financial statements and analysis as presented in the Annual Report on Form 10-K as well as the unaudited financial statements and analyses as presented in the respective Quarterly Reports in Exhibit 99.1 of Form 8-K for S&T Bancorp, Inc. and subsidiaries. 2


3 Third Quarter Overview RETURNS EARNINGS *Refer to appendix for reconciliation of non-GAAP financial measures EPS $0.87 Net Income $33.5 million ROA 1.42% ROE 10.84% ROTE* 15.78% PPNR* 1.99% HIGHLIGHTS • Strong earnings and solid return metrics • NIM remains strong at 4.09%; a decline of 13 basis points compared to 2Q23 • Net charge-offs of $3.7 million, or 0.20% of average loans (annualized) • Efficiency ratio remains low at 52.58% NIM* 4.09% NCO 0.20% OTHER Efficiency Ratio* 52.68%


Balance Sheet • Loans increased $196.3 million, or 10.6% annualized, since June 30, 2023 • Deposits stable with mix shifts moderating • Added $75 million of brokered CDs Dollars in millions 4 3Q23 2Q23 Var $238 $228 $10 955 970 (15) 7,516 7,320 196 7,223 7,141 82 Cash & Int Bear Bal Securities Loans Deposits ($50) $0 $50 $100 $150 $200 3Q23 vs 2Q23: 3Q23 vs 2Q23 DEPOSIT CHANGES DECREASES/INCREASES Brokered CDs


Asset Quality ACL Trend: Dollars in millions 5 ASSET QUALITY TRENDS • ACL stable at 1.44% • Net charge-offs of $3.7 million, or 0.20% of average loans (annualized) • NPAs decreased $1.6 million to 0.22% of total loans plus OREO


• NIM remains strong at 4.09%; a decline of 13 basis points from 2Q23 • NIM has increased 97 basis points through this interest rate cycle • Quarterly net interest income has improved $19.0 million, or 27.8%, since the fourth quarter of 2021 Net Interest Income Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures 6


3Q23 3Q23 vs 2Q23 3Q23 vs 3Q22 Debit and Credit Card $4.7 $0.0 ($0.1) Service Charges 4.1 0.2 (0.3) Wealth 3.0 (0.2) (0.2) Mortgage 0.3 0.0 (0.1) Security Gain 0.0 0.0 (0.2) Other 0.1 (2.0) (1.7) Noninterest Income $12.2 ($2.0) ($2.6) Noninterest Income 7Dollars in millions • Decrease in other mainly related to changes in valuation adjustments of $1.6 million and a $0.6 million gain on OREO in 2Q23


3Q23 3Q23 vs 2Q23 3Q23 vs 3Q22 Salaries & Benefits $27.5 $2.1 $0.8 Data Processing 4.5 0.3 0.3 Occupancy 3.7 — 0.2 FF&E 3.1 (0.1) 0.2 Professional Services 2.0 (0.1) 0.1 Other Taxes 1.8 0.5 0.3 Marketing 1.7 0.3 0.4 FDIC 1.0 — 0.4 Other 7.5 0.2 0.5 Noninterest Expense $52.8 $3.2 $3.2 Noninterest Expense Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures 8 • Expenses were well controlled • Salaries & benefits higher primarily due to incentives


Capital Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures 9 TCE / TA* • We have strong capital levels and are well positioned for growth • TCE / TA is relatively stable despite AOCI adjustments


3Q23 Return on Average Tangible Shareholders' Equity (ROTE) (non-GAAP) Net income (annualized) $132,779 Plus: amortization of intangibles (annualized), net of tax 1,034 Net income before amortization of intangibles (annualized) $133,813 Average total shareholders' equity $1,224,905 Less: average goodwill and other intangible assets, net of deferred tax liability (377,020) Average tangible equity (non-GAAP) $847,885 Return on average tangible shareholders' equity (non-GAAP) 15.78 % Return on average tangible shareholders' equity is a key profitability metric used by management to measure financial performance. Pre-provision Net Revenue (PPNR)/Average Assets (non-GAAP) Income before taxes $41,268 Plus: Provision for credit losses 5,498 Total $46,766 Total (annualized) (non-GAAP) $185,538 Average assets $9,324,821 PPNR/Average Assets (non-GAAP) 1.99 % Pre-provision net revenue to average assets is income before taxes adjusted to exclude provision for credit losses. We believe this to be a preferred industry measurement to help evaluate our ability to fund credit losses or build capital. Appendix Definitions of GAAP to Non-GAAP Financial Measures 10


3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 Tangible Common Equity (TCE)/Tangible Assets (non-GAAP) Total shareholders' equity $1,223,532 $1,212,853 $1,227,795 $1,184,659 $1,153,181 Less: goodwill and other intangible assets, net of deferred tax liability (376,883) (377,144) (377,405) (377,673) (377,961) Tangible common equity (non-GAAP) $846,649 $835,709 $850,390 $806,986 $775,220 Total assets $9,466,077 $9,252,922 $9,193,442 $9,110,567 $8,935,969 Less: goodwill and other intangible assets, net of deferred tax liability (376,883) (377,144) (377,405) (377,673) (377,961) Tangible assets (non-GAAP) $9,089,194 $8,875,778 $8,816,037 $8,732,894 $8,558,008 Tangible common equity to tangible assets (non-GAAP) 9.31 % 9.42 % 9.65 % 9.24 % 9.06 % Tangible common equity to tangible assets is a preferred industry measurement to evaluate capital adequacy. Efficiency Ratio (non-GAAP) Noninterest expense $52,803 $49,633 $51,699 $51,275 $49,633 Net interest income per consolidated statements of net income 87,387 88,123 88,791 89,058 83,798 Plus: taxable equivalent adjustment 674 639 555 532 521 Net interest income (FTE) (non-GAAP) $88,061 $88,762 $89,346 $89,590 $84,319 Noninterest income 12,182 14,191 13,190 15,643 14,760 Less: net gains on sale of securities — — — — (198) Net interest income (FTE) (non-GAAP) plus noninterest income $100,243 $102,953 $102,536 $105,233 $98,881 Efficiency ratio (non-GAAP) 52.68 % 48.21 % 50.42 % 48.73 % 50.19 % The efficiency ratio is noninterest divided by noninterest income plus net interest income, on an FTE basis (non-GAAP), which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice. Net Interest Margin Rate (NIM) (FTE) (non-GAAP) Interest income and dividend income $122,959 $117,333 $110,903 $103,208 $89,835 $77,599 $70,109 $71,135 Less: interest expense (35,572) (29,210) (22,112) (14,150) (6,037) (2,405) (2,376) (2,697) Net interest income per consolidated statements of net income $87,387 $88,123 $88,791 $89,058 $83,798 $75,194 $67,733 $68,438 Plus: taxable equivalent adjustment 674 639 555 532 521 506 493 510 Net interest income (FTE) (non-GAAP) $88,061 $88,762 $89,346 $89,590 $84,319 $75,700 $68,226 $68,948 Net interest income (FTE) (annualized) $349,373 $356,022 $362,348 $355,438 $334,526 $303,633 $276,694 $273,537 Average interest-earning assets $8,561,578 $8,436,490 $8,372,193 $8,220,689 $8,287,889 $8,535,384 $8,747,398 $8,768,329 Net interest margin (FTE) (non-GAAP) 4.09 % 4.22 % 4.32 % 4.33 % 4.04 % 3.56 % 3.16 % 3.12 % The interest income on interest-earning assets, net interest income and net interest margin are presented on an FTE basis (non-GAAP). The FTE basis (non-GAAP) adjusts for the tax benefit of income on certain tax-exempt loans and securities and the dividend-received deduction for equity securities using the federal statutory tax rate of 21 percent for each period. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable sources of interest income. Appendix Definitions of GAAP to Non-GAAP Financial Measures 11


Third Quarter 2023 Earnings Supplement