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6-K

Bank of N.T. Butterfield & Son Ltd (NTB)

6-K 2025-10-28 For: 2025-09-30
View Original
Added on April 10, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October, 2025

Commission File Number: 001-37877

The Bank of N.T. Butterfield & Son Limited

(Translation of registrant’s name into English)

65 Front Street

Hamilton, HM 12

Bermuda

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ý Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

DOCUMENTS INCLUDED AS PART OF THIS FORM 6-K

Attached hereto (i) as Exhibit 99.1 is the earnings release, (ii) as Exhibit 99.2 is the financial statements, and (iii) as Exhibit 99.3 is the earnings call presentation, all for The Bank of N.T. Butterfield & Son Limited for the three months ended September 30, 2025.

Pursuant to the requirements 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.

Date:  October 28, 2025 THE BANK OF N.T. BUTTERFIELD & SON LIMITED
By: /s/ Michael Schrum
Name: Michael Schrum
Title: President and Group Chief Financial Officer

EXHIBIT INDEX

Exhibit Description
99.1 Earnings release - Third quarter 2025 results
99.2 Financial Statements - Third quarter 2025 results
99.3 Earnings call presentation - Third quarter 2025 results 3
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Butterfield Reports Third Quarter 2025 Results

Financial highlights for the third quarter of 2025:

•Net income of $61.1 million, or $1.46 per share and core net income1 of $63.3 million, or $1.51 per share

•Return on average common equity of 22.5% and core return on average tangible common equity1 of 25.5%

•Net interest margin of 2.73%, cost of deposits of 1.47%

•Quarterly cash dividend of $0.50 per share for the quarter ended September 30, 2025

•Repurchases of 0.7 million shares at a total cost of $30.3 million

Hamilton, Bermuda - October 28, 2025: The Bank of N.T. Butterfield & Son Limited ("Butterfield" or the "Bank") (BSX: NTB.BH; NYSE: NTB) today announced financial results for the quarter ended September 30, 2025.

Net income for the third quarter of 2025 was $61.1 million, or $1.46 per diluted common share, compared to net income of $53.3 million, or $1.25 per diluted common share, for the previous quarter and $52.7 million, or $1.16 per diluted common share, for the third quarter of 2024. Core net income1 for the third quarter of 2025 was $63.3 million, or $1.51 per diluted common share, compared to $53.7 million, or $1.26 per diluted common share, for the previous quarter and $52.8 million, or $1.16 per diluted common share, for the third quarter of 2024.

The return on average common equity for the third quarter of 2025 was 22.5% compared to 20.3% for the previous quarter and 20.3% for the third quarter of 2024. The core return on average tangible common equity1 for the third quarter of 2025 was 25.5%, compared to 22.3% for the previous quarter and 22.5% for the third quarter of 2024. The efficiency ratio for the third quarter of 2025 was 57.7%, compared to 61.3% for the previous quarter and 60.3% for the third quarter of 2024. The core efficiency ratio1 for the third quarter of 2025 was 56.2% compared with 61.1% in the previous quarter and 60.2% for the third quarter of 2024.

Michael Collins, Butterfield's Chairman and Chief Executive Officer, commented, “Butterfield’s strong third quarter performance demonstrates the resilience of our business model as we improved efficiency across the organization. We delivered higher banking and foreign exchange fees, while our net interest income and margin improved as a result of lower deposit costs and a conservative asset mix. Our proactive capital management continued to deliver strong shareholder returns through a quarterly cash dividend and share repurchases. Together, these outcomes underscore the effectiveness of our strategy and commitment to build long-term value for clients and shareholders."

Net income and core net income1 were up in the third quarter of 2025 versus the prior quarter, primarily driven by higher banking revenue due to increased card volumes and incentives and higher foreign exchange revenue. Additionally, the improvements were attributable to higher net interest income from lower cost of deposits and the prior quarter's redemption of subordinated debt.

(1)    See table "Reconciliation of US GAAP Results to Core Earnings" below for reconciliation of US GAAP results to non-GAAP measures.         1

Net interest income (“NII”) for the third quarter of 2025 was $92.7 million, an increase of $3.3 million over NII of $89.4 million in the previous quarter and $4.7 million higher compared to $88.1 million in the third quarter of 2024. NII was higher during the third quarter of 2025 compared to the previous quarter and the third quarter of 2024 due to a lower cost of deposits as central banks have reduced market rates and the redemption of subordinated debt in the prior quarter, which were partially offset by lower loan and treasury yields.

Net interest margin (“NIM”) for the third quarter of 2025 was 2.73%, an increase of 9 basis points from the previous quarter at 2.64% and 2.61% in the third quarter of 2024. NIM in the third quarter of 2025 increased compared to the prior quarter and the third quarter of 2024 due to lower cost of deposits as central banks cut market rates and the repayment of subordinated debt in the prior quarter.

Non-interest income for the third quarter of 2025 was $61.2 million, an increase of $4.2 million from $57.0 million in the previous quarter and $5.1 million higher than $56.0 million in the third quarter of 2024. The increase in the third quarter of 2025 compared to the prior quarter and the third quarter of 2024 was due to higher banking fees from both card volume and incentive programs and higher foreign exchange volumes.

Non-interest expenses were $90.8 million in the third quarter of 2025, compared to $91.8 million in the previous quarter and $88.8 million in the third quarter of 2024. Core non-interest expenses1 of $88.5 million in the third quarter of 2025 were lower compared to the $91.4 million incurred in the previous quarter and the $88.6 million in the third quarter of 2024. Core non-interest expenses1 in the third quarter of 2025 were lower compared to the prior quarter due to lower salaries and other employee benefits, property costs, non-income taxes and other non-interest expenses. Core non-interest expenses1 in the third quarter of 2025 remains relatively flat compared to the third quarter of 2024.

Included in salaries and other employee benefits are non-core expenses of $2.2 million which relates to costs associated with senior executive departures.

Period end deposit balances remained relatively flat at $12.7 billion compared to December 31, 2024. Average deposits were $12.6 billion in the quarter ended September 30, 2025, which is slightly lower than the $12.7 billion in the prior quarter.

Tangible book value per share at the end of the third quarter of 2025 was $25.06 per share, higher than $23.77 per share at the end of the prior quarter and an increase over the $21.70 at December 31, 2024. The tangible book value per share continues to improve due to OCI burndown and retained earnings.

The Board declared a quarterly cash dividend rate of $0.50 per common share to be paid on November 25, 2025 to shareholders of record on November 11, 2025. During the third quarter of 2025, Butterfield repurchased 0.7 million common shares under the Bank's existing share repurchase program.

Effective January 1, 2025, the Bank has adopted the Basel Committee on Banking Supervision's ("BCBS") revised standardized approach for credit risk framework as required by the Bermuda Monetary Authority ("BMA"). Comparatives were prepared under the prior credit risk framework. The current total regulatory capital ratio as at September 30, 2025 was 27.0%, compared to 25.8% as at December 31, 2024. Both of these ratios remain conservatively above the minimum regulatory requirements applicable to the Bank.

ANALYSIS AND DISCUSSION OF THIRD QUARTER RESULTS

Income statement Three months ended (Unaudited)
(in $ millions) September 30, 2025 June 30, 2025 September 30, 2024
Non-interest income 61.2 57.0 56.0
Net interest income before provision for credit losses 92.7 89.4 88.1
Total net revenue before provision for credit losses and other gains (losses) 153.9 146.4 144.1
Provision for credit (losses) recoveries (0.6) (0.2) (1.3)
Total other gains (losses) (0.1) 0.1 (0.1)
Total net revenue 153.3 146.3 142.7
Non-interest expenses (90.8) (91.8) (88.8)
Total net income before taxes 62.5 54.5 54.0
Income tax benefit (expense) (1.4) (1.2) (1.2)
Net income 61.1 53.3 52.7
Net earnings per share
Basic 1.50 1.28 1.18
Diluted 1.46 1.25 1.16
Per diluted share impact of other non-core items 1 0.05 0.01
Core earnings per share on a fully diluted basis 1 1.51 1.26 1.16
Adjusted weighted average number of participating shares on a fully diluted basis (in thousands of shares) 41,944 42,653 45,557
Key financial ratios
Return on common equity 22.5 % 20.3 % 20.3 %
Core return on average tangible common equity 1 25.5 % 22.3 % 22.5 %
Return on average assets 1.7 % 1.5 % 1.5 %
Net interest margin 2.73 % 2.64 % 2.61 %
Core efficiency ratio 1 56.2 % 61.1 % 60.2 %

(1)See table "Reconciliation of US GAAP Results to Core Earnings" below for reconciliation of US GAAP results to non-GAAP measures.

Balance Sheet As at
(in $ millions) September 30, 2025 December 31, 2024
Cash and cash equivalents 1,501 1,998
Securities purchased under agreements to resell 1,156 1,205
Short-term investments 831 580
Investments in securities 5,675 5,513
Loans, net of allowance for credit losses 4,468 4,474
Premises, equipment and computer software, net 159 154
Goodwill and intangibles, net 89 90
Accrued interest and other assets 208 218
Total assets 14,086 14,231
Total deposits 12,721 12,746
Long-term debt 99
Securities sold under agreements to repurchase 93
Accrued interest and other liabilities 259 273
Total liabilities 12,980 13,211
Common shareholders’ equity 1,106 1,021
Total shareholders' equity 1,106 1,021
Total liabilities and shareholders' equity 14,086 14,231
Key Balance Sheet Ratios: September 30, 2025 December 31, 2024
Common equity tier 1 capital ratio 2 26.9 % 23.5 %
Tier 1 capital ratio 2 26.9 % 23.5 %
Total capital ratio 2 27.0 % 25.8 %
Leverage ratio 7.5 % 7.3 %
Risk-Weighted Assets (in $ millions) 4,014 4,539
Risk-Weighted Assets / total assets 28.5 % 31.9 %
Tangible common equity ratio 7.3 % 6.6 %
Book value per common share (in $) 27.25 23.78
Tangible book value per share (in $) 25.06 21.70
Non-accrual loans/gross loans 2.0 % 1.7 %
Non-performing assets/total assets 1.0 % 1.1 %
Allowance for credit losses/total loans 0.6 % 0.6 %

(2)     Effective January 1, 2025, the Bank has adopted the BCBS's revised standardized approach for credit risk framework as required by the BMA. Comparatives were prepared under the prior credit risk framework.

QUARTER ENDED SEPTEMBER 30, 2025 COMPARED WITH THE QUARTER ENDED JUNE 30, 2025

Net Income

Net income for the quarter ended September 30, 2025 was $61.1 million, up from $53.3 million in the prior quarter.

The change in net income during the quarter ended September 30, 2025 compared to the previous quarter is attributable to the following:

•$4.2 million increase in non-interest income driven by (i) $3.1 million increase in banking fees to increased card volumes and incentives; and (ii) $1.3 million increase in foreign exchange revenue driven by volume;

•$3.3 million increase in net interest income driven by lower cost of deposits as central banks have reduced market rates and the repayment of subordinated debt in the prior quarter; and

•$1.0 million decrease in non-interest expenses driven by lower property costs due to property consolidation in the Channel Islands, lower non-income taxes, reduced marketing spend and a decrease in other non-interest expenses. These were partially offset by higher staff-related costs due to senior management departures.

Non-Core Items1

Non-core items resulted in expenses, net of gains, of $2.2 million for the third quarter of 2025. Non-core items for the quarter relate mainly to costs associated with senior executive departures.

Management does not believe that comparative period expenses, gains or losses identified as non-core are indicative of the results of operations of the Bank in the ordinary course of business.

(1)See table "Reconciliation of US GAAP Results to Core Earnings" below for reconciliation of US GAAP results to non-GAAP measures.

BALANCE SHEET COMMENTARY AT SEPTEMBER 30, 2025 COMPARED WITH DECEMBER 31, 2024

Total Assets

Total assets of the Bank were $14.1 billion at September 30, 2025, a decrease of $145.0 million from December 31, 2024. The Bank maintained a highly liquid position at September 30, 2025, with $9.2 billion of cash, bank deposits, reverse repurchase agreements and liquid investments representing 65.0% of total assets, compared with 65.3% at December 31, 2024.

Loans Receivable

The loan portfolio totaled $4.5 billion at September 30, 2025, relatively flat compared to the December 31, 2024 balance.

The allowance for credit losses at September 30, 2025 totaled $25.7 million, which remained consistent with the December 31, 2024 balance.

The loan portfolio represented 31.7% of total assets at September 30, 2025 (December 31, 2024: 31.4%), while loans as a percentage of total deposits was 35.1% at September 30, 2025 (December 31, 2024: 35.1%). Both ratios remain relatively flat at September 30, 2025 compared to December 31, 2024.

As at September 30, 2025, the Bank had gross non-accrual loans of $91.7 million, representing 2.0% of total gross loans, an increase of $15.1 million from $76.7 million, or 1.7% of total loans, at December 31, 2024. The increase in non-accrual loans was driven by a residential mortgage facility in the Channel Islands and UK segment and partially offset by the settlement of a commercial real estate loan facility in Bermuda.

Investment in Securities

The investment portfolio was $5.7 billion at September 30, 2025, which was $0.2 billion higher than the December 31, 2024 balances. The increase is due to the deployment of assets into the available-for-sale investment portfolio.

The investment portfolio is made up of high-quality assets with 100% invested in A-or-better-rated securities. The investment book yield was 2.67% during the quarter ended September 30, 2025 compared with 2.67% during the previous quarter. Total net unrealized losses on the available-for-sale portfolio is lower at $101.5 million, an improvement of $61.8 million compared with total net unrealized losses of $163.3 million at December 31, 2024.

Deposits

Average total deposit balances were $12.6 billion for the quarter ended September 30, 2025, while period end balances as at September 30, 2025 were $12.7 billion, both relatively flat compared to December 31, 2024 balances.

Average Balance Sheet2

For the three months ended
September 30, 2025 June 30, 2025 September 30, 2024
(in $ millions) Average<br><br>balance<br><br>($) Interest<br><br>($) Average<br><br>rate<br><br>(%) Average<br><br>balance<br><br>($) Interest<br><br>($) Average<br><br>rate<br><br>(%) Average<br><br>balance<br><br>($) Interest<br><br>($) Average<br><br>rate<br><br>(%)
Assets
Cash and cash equivalents and short-term investments 3,474.7 31.9 3.64 3,634.3 33.6 3.71 3,572.7 42.0 4.66
Investment in securities 5,526.0 37.2 2.67 5,452.0 36.2 2.67 5,239.2 31.5 2.39
Available-for-sale 2,430.1 19.8 3.24 2,292.6 18.3 3.21 1,907.3 12.7 2.64
Held-to-maturity 3,095.9 17.4 2.23 3,159.4 17.9 2.27 3,331.9 18.9 2.24
Loans 4,470.9 70.3 6.24 4,517.7 71.0 6.31 4,566.2 76.4 6.64
Commercial 1,226.6 20.3 6.57 1,290.7 21.1 6.55 1,298.9 21.6 6.61
Consumer 3,244.3 50.0 6.11 3,227.0 50.0 6.21 3,267.3 54.8 6.66
Interest earning assets 13,471.6 139.4 4.11 13,603.9 140.9 4.15 13,378.1 150.0 4.45
Other assets 445.4 417.6 421.5
Total assets 13,917.0 14,021.5 13,799.6
Liabilities
Deposits - interest bearing 10,017.1 (46.7) (1.85) 10,051.2 (49.2) (1.96) 9,805.8 (59.7) (2.41)
Securities sold under agreements to repurchase 1.9 (5.94) 81.9 (0.9) (4.30)
Long-term debt 77.7 (2.3) (11.92) 98.6 (1.4) (5.52)
Interest bearing liabilities 10,017.1 (46.7) (1.85) 10,130.8 (51.5) (2.04) 9,986.3 (61.9) (2.46)
Non-interest bearing current accounts 2,616.7 2,602.5 2,561.9
Other liabilities 231.2 253.4 249.6
Total liabilities 12,865.0 12,986.7 12,797.8
Shareholders’ equity 1,052.0 1,034.9 1,001.9
Total liabilities and shareholders’ equity 13,917.0 14,021.5 13,799.6
Non-interest bearing funds net of <br>   non-interest earning assets <br>   (free balance) 3,454.5 3,473.2 3,391.8
Net interest margin 92.7 2.73 89.4 2.64 88.1 2.61

(2) Averages are based upon a daily averages for the periods indicated.

Assets Under Administration and Assets Under Management

Total assets under administration for the trust and custody businesses were $135.9 billion and $29.2 billion, respectively, at September 30, 2025, while assets under management were $6.5 billion at September 30, 2025. This compares with $131.3 billion, $30.5 billion and $6.0 billion, respectively, at December 31, 2024.

Reconciliation of US GAAP Results to Core Earnings

The table below shows the reconciliation of net income in accordance with US GAAP to core earnings, a non-GAAP measure, which excludes certain significant items that are included in our US GAAP results of operations. We focus on core net income, which we calculate by adjusting net income to exclude certain income or expense items that are not representative of our business operations, or “non-core”. Core net income includes revenue, gains, losses and expense items incurred in the normal course of business. We believe that expressing earnings and certain other financial measures excluding these non-core items provides a meaningful base for period-to-period comparisons, which management believes will assist investors in analyzing the operating results of the Bank and predicting future performance. We believe that presentation of these non-GAAP financial measures will permit investors to assess the performance of the Bank on the same basis as management.

Core Earnings Three months ended
(in $ millions except per share amounts) September 30, 2025 June 30, 2025 September 30, 2024
Net income 61.1 53.3 52.7
Non-core items
Non-core expenses
Early retirement program, voluntary separation, redundancies and other non-core compensation costs 2.2 0.4
Restructuring charges and related professional service fees 0.1
Total non-core expenses 2.2 0.4 0.1
Total non-core items 2.2 0.4 0.1
Core net income 63.3 53.7 52.8
Average common equity 1,076.2 1,055.0 1,029.2
Less: average goodwill and intangible assets (90.0) (91.2) (95.5)
Average tangible common equity 986.2 963.8 933.7
Core earnings per share fully diluted 1.51 1.26 1.16
Return on common equity 22.5 % 20.3 % 20.3 %
Core return on average tangible common equity 25.5 % 22.3 % 22.5 %
Shareholders' equity 1,106.0 1,069.1 1,064.2
Less: goodwill and intangible assets (88.8) (92.2) (96.7)
Tangible common equity 1,017.1 977.0 967.5
Basic participating shares outstanding (in millions) 40.6 41.1 44.2
Tangible book value per common share 25.06 23.77 21.90
Non-interest expenses 90.8 91.8 88.8
Less: non-core expenses (2.2) (0.4) (0.1)
Less: amortization of intangibles (2.0) (2.0) (1.9)
Core non-interest expenses before amortization of intangibles 86.6 89.4 86.7
Core revenue before other gains and losses and provision for credit losses 153.9 146.4 144.1
Core efficiency ratio 56.2 % 61.1 % 60.2 %

Conference Call Information:

Butterfield will host a conference call to discuss the Bank’s results on Wednesday, October 29, 2025 at 10:00 a.m. Eastern Time. Callers may access the conference call by dialing +1 (844) 855-9501 (toll-free) or +1 (412) 858-4603 (international) ten minutes prior to the start of the call and referencing the Conference ID: Butterfield Group. A live webcast of the conference call, including a slide presentation, will be available in the investor relations section of Butterfield’s website at www.butterfieldgroup.com. A replay of the call will be archived on the Butterfield website for 12 months.

About Non-GAAP Financial Measures:

Certain statements in this release involve the use of non-GAAP financial measures. We believe such measures provide useful information to investors that is supplementary to our financial condition, results of operations and cash flows computed in accordance with US GAAP; however, our non-GAAP financial measures have a number of limitations. As such, investors should not view these disclosures as a substitute for results determined in accordance with US GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use. See "Reconciliation of US GAAP Results to Core Earnings" for additional information.

Forward-Looking Statements:

Certain of the statements made in this release are forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations, anticipations, assumptions estimates, intentions, and future performance, including, without limitation, our intention to make share repurchases or otherwise increase shareholder value, our dividend payout target, our fee/income ratio, our OCI, our growth and expenses, and interest rate levels and impact on our earnings, and business activity levels, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause the actual results, performance, capital, ownership or achievements of Butterfield to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements due to a variety of factors, including worldwide economic conditions (including economic growth and general business conditions), changes in trade policies and practices and the resulting uncertainty, market volatility, and potential deterioration in economic conditions, fluctuations of interest rates, inflation, a decline in Bermuda’s sovereign credit rating, any sudden liquidity crisis, the successful completion and integration of acquisitions (including our integration of the trust assets acquired from Credit Suisse) or the realization of the anticipated benefits of such acquisitions in the expected time-frames or at all, success in business retention (including the retention of relationships associated with our Credit Suisse acquisition) and obtaining new business, potential impacts of climate change, the success of our updated systems and platforms and other factors. Forward-looking statements can be identified by words such as "anticipate," "assume," "believe," "estimate," "expect," "indicate," "intend," "may," "plan," "point to," "predict," "project," "seek," "target," "potential," "will," "would," "could," "should," "continue," "contemplate" and other similar expressions, although not all forward-looking statements contain these identifying words. All statements other than statements of historical fact are statements that could be forward-looking statements.

All forward-looking statements in this disclosure are expressly qualified in their entirety by this cautionary notice, including, without limitation, those risks and uncertainties described in our SEC reports and filings, including under the caption "Risk Factors" in our most recent Form 20-F. Such reports are available upon request from Butterfield, or from the Securities and Exchange Commission ("SEC"), including through the SEC’s website at https://www.sec.gov. Any forward-looking statements made by Butterfield are current views as at the date they are made. Except as otherwise required by law, Butterfield assumes no obligation and does not undertake to review, update, revise or correct any of the forward-looking statements included in this disclosure, whether as a result of new information, future events or other developments. You are cautioned not to place undue reliance on the forward-looking statements made by Butterfield in this disclosure. Comparisons of results for current and any prior periods are not intended to express any future trends or indications of future performance, and should only be viewed as historical data. BF-All

Presentation of Financial Information:

Certain monetary amounts, percentages and other figures included in this report have been subject to rounding adjustments. Accordingly, figures shown as totals in certain tables may not be the arithmetic aggregation of the figures that precede them, and figures expressed as percentages in the text may not total 100% or, as applicable, when aggregated may not be the arithmetic aggregation of the percentages that precede them.

About Butterfield:

Butterfield is a full-service bank and wealth manager headquartered in Hamilton, Bermuda, providing services to clients from Bermuda, the Cayman Islands, Guernsey and Jersey, where our principal banking operations are located, and The Bahamas, Switzerland, Singapore and the United Kingdom, where we offer specialized financial services. Banking services comprise deposit, cash management and lending solutions for individual, business and institutional clients. Wealth management services are composed of trust, private banking, asset management and custody. In Bermuda, the Cayman Islands and Guernsey, we offer both banking and wealth management. In The Bahamas, Singapore and Switzerland, we offer select wealth management services. In the UK, we offer residential property lending. In Jersey, we offer select banking and wealth management services. Butterfield is publicly traded on the New York Stock Exchange (symbol: NTB) and the Bermuda Stock Exchange (symbol: NTB.BH). Further details on the Butterfield Group can be obtained from our website at: www.butterfieldgroup.com.

Investor Relations Contact:                Media Relations Contact:

Noah Fields                    Nicky Stevens

Investor Relations                 Group Strategic Marketing & Communications

The Bank of N.T. Butterfield & Son Limited        The Bank of N.T. Butterfield & Son Limited

Phone: (441) 299 3816                Phone: (441) 299 1624

E-mail: noah.fields@butterfieldgroup.com         E-mail: nicky.stevens@butterfieldgroup.com

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INDEX TO FINANCIAL STATEMENTS

Unaudited Consolidated Financial Statements Page
Consolidated Balance Sheets (unaudited) as of September 30, 2025 and December 31, 2024 2
Consolidated Statements of Operations (unaudited) for the Three and Nine Months Ended September 30, 2025 and 2024 3
Consolidated Statements of Comprehensive Income (unaudited) for the Three and Nine Months Ended September 30, 2025 and 2024 4
Consolidated Statements of Changes in Shareholders’ Equity (unaudited) for the Three and Nine Months Ended September 30, 2025 and 2024 5
Consolidated Statements of Cash Flows (unaudited) for the Nine Months Ended September 30, 2025 and 2024 6
Notes to the Consolidated Financial Statements (unaudited) 7

The Bank of N.T. Butterfield & Son Limited

Consolidated Balance Sheets (unaudited)

(In thousands of US dollars, except share and per share data)

As at
September 30, 2025 December 31, 2024
Assets
Cash and demand deposits with banks - Non-interest bearing 105,686 93,145
Demand deposits with banks - Interest bearing 162,214 165,741
Cash equivalents - Interest bearing 1,233,468 1,739,226
Cash and cash equivalents 1,501,368 1,998,112
Securities purchased under agreements to resell 1,155,950 1,205,373
Short-term investments 830,761 580,026
Investment in securities
Available-for-sale at fair value (including assets pledged that secured parties are permitted to sell or repledge: Nil (2024: $93,468) (amortized cost: $2,721,244 (2024: $2,435,752)) 2,619,749 2,272,486
Held-to-maturity (fair value: $2,605,627 (2024: $2,671,040)) 3,055,181 3,240,290
Total investment in securities 5,674,930 5,512,776
Loans
Loans 4,493,314 4,499,300
Allowance for credit losses (25,669) (25,709)
Loans, net of allowance for credit losses 4,467,645 4,473,591
Premises, equipment and computer software, net 158,548 153,782
Goodwill 25,349 23,617
Other intangible assets, net 63,499 65,992
Equity method investments 6,724 6,594
Accrued interest and other assets 201,581 211,533
Total assets 14,086,355 14,231,396
Liabilities
Deposits
Non-interest bearing 2,581,924 2,687,877
Interest bearing 10,139,043 10,058,032
Total deposits 12,720,967 12,745,909
Securities sold under agreements to repurchase 92,562
Employee benefit plans 84,876 83,589
Accrued interest and other liabilities 174,556 189,799
Total other liabilities 259,432 365,950
Long-term debt 98,725
Total liabilities 12,980,399 13,210,584
Commitments, contingencies and guarantees (Note 10)
Shareholders' equity
Common share capital (BMD 0.01 par; authorized voting ordinary shares 2,000,000,000 and<br><br>non-voting ordinary shares 6,000,000,000) issued and outstanding: 41,201,173 (2024: 43,537,979) 412 435
Additional paid-in capital 872,667 916,394
Retained earnings 480,586 422,461
Less: treasury common shares, at cost: 619,212 (2024: 619,212) (27,115) (23,063)
Accumulated other comprehensive income (loss) (220,594) (295,415)
Total shareholders’ equity 1,105,956 1,020,812
Total liabilities and shareholders’ equity 14,086,355 14,231,396

The accompanying notes are an integral part of these consolidated financial statements.

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Operations (unaudited)

(In thousands of US dollars, except per share data)

Three months ended Nine months ended
September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Non-interest income
Asset management 9,914 9,454 28,842 27,180
Banking 17,830 14,421 47,631 42,485
Foreign exchange revenue 13,224 12,226 38,857 38,000
Trust 16,236 15,773 48,235 46,254
Custody and other administration services 3,141 3,484 9,802 10,169
Other non-interest income 836 679 3,263 2,689
Total non-interest income 61,181 56,037 176,630 166,777
Interest income
Interest and fees on loans 70,267 76,445 210,748 230,023
Investments (none of the investment securities are intrinsically tax-exempt)
Available-for-sale 19,839 12,688 55,928 33,062
Held-to-maturity 17,387 18,852 53,600 56,997
Cash and cash equivalents, securities purchased under agreements to resell and short-term investments 31,911 41,989 100,052 120,185
Total interest income 139,404 149,974 420,328 440,267
Interest expense
Deposits 46,681 59,662 144,987 172,609
Long-term debt 1,371 3,681 4,114
Securities sold under agreements to repurchase 2 888 207 977
Total interest expense 46,683 61,921 148,875 177,700
Net interest income before provision for credit losses 92,721 88,053 271,453 262,567
Provision for credit (losses) recoveries (564) (1,316) (394) (1,390)
Net interest income after provision for credit losses 92,157 86,737 271,059 261,177
Net gains (losses) on other real estate owned 68
Net other gains (losses) (61) (52) 33 181
Total other gains (losses) (61) (52) 33 249
Total net revenue 153,277 142,722 447,722 428,203
Non-interest expense
Salaries and other employee benefits 46,604 43,703 137,573 130,331
Technology and communications 16,043 16,468 48,346 49,453
Professional and outside services 4,951 4,814 15,547 17,014
Property 8,199 8,551 25,706 25,506
Indirect taxes 5,512 5,467 17,855 17,358
Non-service employee benefits expense 1,292 982 3,920 2,947
Marketing 1,388 1,289 4,858 4,174
Amortization of intangible assets 1,970 1,942 5,844 5,762
Other expenses 4,809 5,550 16,088 15,895
Total non-interest expense 90,768 88,766 275,737 268,440
Net income before income taxes 62,509 53,956 171,985 159,763
Income tax benefit (expense) (1,447) (1,240) (3,834) (3,025)
Net income 61,062 52,716 168,151 156,738
Earnings per common share
Basic earnings per share 1.50 1.18 4.04 3.44
Diluted earnings per share 1.46 1.16 3.93 3.38

The accompanying notes are an integral part of these consolidated financial statements.

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Comprehensive Income (unaudited)

(In thousands of US dollars)

Three months ended Nine months ended
September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Net income 61,062 52,716 168,151 156,738
Other comprehensive income (loss), net of taxes
Unrealized net gains (losses) on translation of net investment in foreign operations (422) 2,057 5,838 1,945
Net changes on investments transferred to held-to-maturity 2,137 2,007 5,896 6,206
Unrealized net gains (losses) on available-for-sale investments 18,485 59,666 61,847 46,827
Employee benefit plans adjustments 736 (174) 1,240 1,230
Other comprehensive income (loss), net of taxes 20,936 63,556 74,821 56,208
Total comprehensive income (loss) 81,998 116,272 242,972 212,946

The accompanying notes are an integral part of these consolidated financial statements.

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Changes in Shareholders' Equity (unaudited)

Nine months ended
September 30, 2024 September 30, 2025 September 30, 2024
In thousands of<br>US dollars Number of shares In thousands of<br>US dollars Number of shares In thousands of<br>US dollars Number of shares In thousands of<br>US dollars
Common share capital issued and outstanding
Balance at beginning of period 417 45,782,082 458 43,537,979 435 47,529,045 475
Retirement of shares (7) (993,203) (10) (2,880,140) (29) (3,228,523) (32)
Issuance of common shares 2 3,005 543,334 6 491,362 5
Balance at end of period 412 44,791,884 448 41,201,173 412 44,791,884 448
Additional paid-in capital
Balance at beginning of period 881,196 953,254 916,394 988,904
Share-based compensation 5,573 5,185 16,355 15,471
Share-based settlements 48 53 526 518
Retirement of shares (14,149) (20,679) (60,603) (67,075)
Issuance of common shares, net of underwriting discounts and commissions (1) (5) (5)
Balance at end of period 872,667 937,813 872,667 937,813
Retained earnings
Balance at beginning of period 454,524 383,500 422,461 342,520
Net Income for the period 61,062 52,716 168,151 156,738
Common share cash dividends declared and paid, 0.50 and 1.38 per share (2024: 0.44 and 1.32 per share) (20,453) (19,718) (57,577) (60,348)
Retirement of shares (14,547) (14,128) (52,449) (36,540)
Balance at end of period 480,586 402,370 480,586 402,370
Treasury common shares
Balance at beginning of period (25,468) 619,212 (20,552) 619,212 (23,063) 619,212 (18,104)
Purchase of treasury common shares (30,350) 993,203 (36,752) 2,880,140 (117,133) 3,228,523 (108,030)
Retirement of shares 28,703 (993,203) 34,817 (2,880,140) 113,081 (3,228,523) 103,647
Balance at end of period (27,115) 619,212 (22,487) 619,212 (27,115) 619,212 (22,487)
Accumulated other comprehensive income (loss)
Balance at beginning of period (241,530) (317,546) (295,415) (310,198)
Other comprehensive income (loss), net of taxes 20,936 63,556 74,821 56,208
Balance at end of period (220,594) (253,990) (220,594) (253,990)
Total shareholders' equity 1,105,956 1,064,154 1,105,956 1,064,154

All values are in US Dollars.

The accompanying notes are an integral part of these consolidated financial statements.

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Cash Flows (unaudited)

(In thousands of US dollars)

Nine months ended
September 30, 2025 September 30, 2024
Cash flows from operating activities
Net income 168,151 156,738
Adjustments to reconcile net income to operating cash flows
Depreciation, accretion and amortization 29,432 33,952
Provision for credit losses (recoveries) 394 1,390
Share-based payments and settlements 16,882 15,989
Net (gains) losses on other real estate owned (68)
(Increase) decrease in carrying value of equity method investments (190) 387
Dividends received from equity method investments 60 110
Changes in operating assets and liabilities
(Increase) decrease in accrued interest receivable and other assets 28,782 21,646
Increase (decrease) in employee benefit plans, accrued interest payable and other liabilities (28,019) (1,146)
Cash provided by (used in) operating activities 215,492 228,998
Cash flows from investing activities
Net (increase) decrease in securities purchased under agreements to resell 102,831 (955,524)
Short-term investments other than restricted cash: proceeds from maturities and sales 1,109,455 2,007,287
Short-term investments other than restricted cash: purchases (1,338,460) (1,581,580)
Available-for-sale investments: proceeds from maturities and pay downs 240,093 462,660
Available-for-sale investments: purchases (527,821) (663,513)
Held-to-maturity investments: proceeds from maturities and pay downs 187,215 197,357
Held-to-maturity investments: purchases (37,712)
Net (increase) decrease in loans 138,785 187,635
Additions to premises, equipment and computer software (19,516) (12,909)
Proceeds from sale of other real estate owned 530
Purchase of intangible assets (481)
Cash provided by (used in) investing activities (107,418) (396,250)
Cash flows from financing activities
Net increase (decrease) in deposits (297,278) 590,610
Net increase (decrease) in securities sold under agreements to repurchase (90,032) 96,049
Repayment of long-term debt (100,000)
Common shares repurchased (117,132) (108,030)
Cash dividends paid on common shares (57,577) (60,348)
Cash provided by (used in) financing activities (662,019) 518,281
Net effect of exchange rates on cash, cash equivalents and restricted cash 53,025 84,232
Net increase (decrease) in cash, cash equivalents and restricted cash (500,920) 435,261
Cash, cash equivalents and restricted cash: beginning of period 2,088,542 1,672,260
Cash, cash equivalents and restricted cash: end of period 1,587,622 2,107,521
Components of cash, cash equivalents and restricted cash at end of period
Cash and cash equivalents 1,501,368 2,067,189
Restricted cash included in short-term investments on the consolidated balance sheets 86,254 40,332
Total cash, cash equivalents and restricted cash at end of period 1,587,622 2,107,521
Supplemental disclosure of non-cash items
Transfer to (out of) other real estate owned 87
Initial recognition of right-of-use assets and operating lease liabilities 4,580 1,262

The accompanying notes are an integral part of these consolidated financial statements.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited)

(In thousands of US dollars, unless otherwise stated)

Note 1: Nature of business

The Bank of N.T. Butterfield & Son Limited (“Butterfield”, the “Bank” or the “Company”) is incorporated under the laws of Bermuda and has a banking license under the Banks and Deposit Companies Act, 1999 (“the Act”). Butterfield is regulated by the Bermuda Monetary Authority (“BMA”), which operates in accordance with Basel principles.

Butterfield is a full service bank and wealth manager headquartered in Hamilton, Bermuda. The Bank operates its business through three geographic segments: Bermuda, Cayman, and the Channel Islands and the UK, where its principal banking operations are located and where it offers specialized financial services. Butterfield offers banking services, comprised of retail and corporate banking, and wealth management, which consists of trust, private banking, and asset management. In the Bermuda, Cayman, and Channel Islands and the UK segments, Butterfield offers both banking and wealth management services. Butterfield also has operations in the jurisdictions of The Bahamas, Canada, Mauritius, Singapore and Switzerland, which are included in our Other segment.

The Bank's common shares trade on the New York Stock Exchange under the symbol "NTB" and on the Bermuda Stock Exchange ("BSX") under the symbol "NTB.BH".

Note 2: Significant accounting policies

The accompanying unaudited interim consolidated financial statements of the Bank have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and should be read in conjunction with the Bank’s audited financial statements for the year ended December 31, 2024.

In the opinion of Management, these unaudited interim consolidated financial statements reflect all adjustments (consisting primarily of normal recurring accruals) considered necessary for a fair statement of the Bank’s financial position and results of operations as at the end of and for the periods presented. The Bank’s results for interim periods are not necessarily indicative of results for the full year.

The preparation of financial statements in conformity with GAAP requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the unaudited consolidated financial statements and the reported amounts of revenues and expenses during the reporting period, and actual results could differ from those estimates. Management believes that the most critical accounting estimates upon which the financial condition depends, and which involve the most complex or subjective decisions or assessments, are as follows:

•Allowance for credit losses

•Fair value of financial instruments

•Impairment of goodwill

•Employee benefit plans

New Accounting Pronouncements

There were no accounting developments issued during the nine months ended September 30, 2025 or accounting standards pending adoption which impacted the Bank.

Note 3: Cash and cash equivalents

September 30, 2025 December 31, 2024
Non-interest bearing
Cash and demand deposits with banks 105,686 93,145
Interest bearing
Demand deposits with banks 162,214 165,741
Cash equivalents 1,233,468 1,739,226
Sub-total - Interest bearing 1,395,682 1,904,967
Total cash and cash equivalents 1,501,368 1,998,112

Note 4: Short-term investments

September 30, 2025 December 31, 2024
Unrestricted
Maturing within three months 284,331 415,072
Maturing between three to six months 315,274 74,524
Maturing between six to twelve months 144,902
Total unrestricted short-term investments 744,507 489,596
Affected by drawing restrictions related to minimum reserve and derivative margin requirements
Interest earning demand and term deposits 86,254 90,430
Total restricted short-term investments 86,254 90,430
Total short-term investments 830,761 580,026

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 5: Investment in securities

Amortized Cost, Carrying Amount and Fair Value

On the consolidated balance sheets, available-for-sale ("AFS") investments are carried at fair value and held-to-maturity ('HTM') investments are carried at amortized cost.

September 30, 2025 December 31, 2024
Amortized<br> cost Gross<br> unrealized<br> gains Gross<br> unrealized<br> losses Fair value Amortized<br> cost Gross<br> unrealized<br> gains Gross<br> unrealized<br> losses Fair value
Available-for-sale
US government and federal agencies 2,705,907 10,859 (111,160) 2,605,606 2,324,841 1,451 (162,673) 2,163,619
Non-US governments debt securities 93,803 (335) 93,468
Asset-backed securities - Student loans 40 40
Residential mortgage-backed securities 15,337 (1,194) 14,143 17,068 (1,709) 15,359
Total available-for-sale 2,721,244 10,859 (112,354) 2,619,749 2,435,752 1,451 (164,717) 2,272,486
Held-to-maturity¹
US government and federal agencies 3,055,181 650 (450,204) 2,605,627 3,240,290 (569,250) 2,671,040
Total held-to-maturity 3,055,181 650 (450,204) 2,605,627 3,240,290 (569,250) 2,671,040

¹For the nine months ended September 30, 2025 and September 30, 2024, impairments recognized in other comprehensive income for HTM investments were Nil.

Investments with Unrealized Loss Positions

The Bank does not believe that the AFS debt securities that were in an unrealized loss position as of September 30, 2025, comprising 160 securities representing 56.6% of the AFS portfolios' carrying value (December 31, 2024: 184 and 87.7%), represent credit losses. Total gross unrealized AFS losses were 7.6% of the fair value of the affected securities (December 31, 2024: 8.3%).

The Bank’s HTM debt securities are comprised of US government and federal agencies securities and have a zero credit loss assumption under the Current Expected Credit Loss ("CECL") model. HTM debt securities that were in an unrealized loss position as of September 30, 2025, were comprised of 218 securities representing 98.9% of the HTM portfolios’ carrying value (December 31, 2024: 220 and 100%). Total gross unrealized HTM losses were 17.5% of the fair value of affected securities (December 31, 2024: 21.3%).

Management does not intend to sell and it is likely that management will not be required to sell the securities prior to the anticipated recovery of the cost of these securities. Unrealized losses were attributable primarily to changes in market interest rates, relative to when the investment securities were purchased, and not due to a decrease in the credit quality of the investment securities. The issuers continue to make timely principal and interest payments on the securities. The following describes the processes for identifying credit impairment in security types with the most significant unrealized losses as shown in the preceding tables.

Management believes that all the US government and federal agencies securities do not have any credit losses, given the explicit and implicit guarantees provided by the US federal government.

Management believes that all the Non-US governments debt securities, which have now matured, did not have any credit losses, given the explicit guarantee provided by the issuing government.

Investments in Asset-backed securities - Student loans were composed of securities collateralized by Federal Family Education Loan Program ("FFELP") loans. FFELP loans benefit from a US federal government guarantee of at least 97% of defaulted principal and accrued interest, with additional credit support provided in the form of over-collateralization, subordination and excess spread, which collectively total in excess of 100%.

Investments in Residential mortgage-backed securities relate to 13 securities (December 31, 2024: 13) which are rated AAA and may possess structural features of securitization, such as subordination, excess spread, over collateralization or other forms of credit enhancement. No credit losses were recognized on these securities as the weighted average credit support and the weighted average loan-to-value ratios range from 15.6% - 50.1% and 42.7% - 51.8%, respectively. Current credit support is significantly greater than any delinquencies experienced on the underlying mortgages.

In the following tables, debt securities with unrealized losses that are not deemed to be credit impaired and for which an allowance for credit losses has not been recorded are categorized as being in a loss position for "less than 12 months" or "12 months or more" based on the point in time that the fair value most recently declined below the amortized

cost basis.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Less than 12 months 12 months or more
September 30, 2025 Fair<br>value Gross<br> unrealized<br> losses Fair<br>value Gross<br>unrealized<br>losses Total<br> fair value Total gross<br>unrealized<br>losses
Available-for-sale securities with unrealized losses
US government and federal agencies 92,596 (270) 1,376,737 (110,890) 1,469,333 (111,160)
Residential mortgage-backed securities 14,144 (1,194) 14,144 (1,194)
Total available-for-sale securities with unrealized losses 92,596 (270) 1,390,881 (112,084) 1,483,477 (112,354)
Held-to-maturity securities with unrealized losses
US government and federal agencies 2,569,862 (450,204) 2,569,862 (450,204)
Less than 12 months 12 months or more
December 31, 2024 Fair<br>value Gross<br> unrealized<br> losses Fair<br>value Gross<br>unrealized<br>losses Total<br>fair value Total gross<br>unrealized<br>losses
Available-for-sale securities with unrealized losses
US government and federal agencies 696,835 (7,922) 1,187,094 (154,751) 1,883,929 (162,673)
Non-US governments debt securities 93,468 (335) 93,468 (335)
Asset-backed securities - Student loans 40 40
Residential mortgage-backed securities 15,359 (1,709) 15,359 (1,709)
Total available-for-sale securities with unrealized losses 696,835 (7,922) 1,295,961 (156,795) 1,992,796 (164,717)
Held-to-maturity securities with unrealized losses
US government and federal agencies 36,713 (476) 2,634,326 (568,774) 2,671,039 (569,250)

Investment Maturities

The following table presents the remaining term to contractual maturity of the Bank’s securities. The actual maturities may differ as certain securities offer prepayment options to the borrowers.

Remaining term to maturity
September 30, 2025 Within<br> 3 months 3 to 12<br> months 1 to 5<br> years 5 to 10<br> years Over<br>10 years No specific or single<br> maturity Carrying<br> amount
Available-for-sale
US government and federal agencies 444,361 833,539 1,327,706 2,605,606
Residential mortgage-backed securities 14,143 14,143
Total available-for-sale 444,361 833,539 1,341,849 2,619,749
Held-to-maturity
US government and federal agencies 3,055,181 3,055,181

Pledged Investments

The Bank pledges certain US government and federal agencies investment securities to further secure the Bank's issued customer deposit products. The secured party does not have the right to sell or repledge the collateral.

September 30, 2025 December 31, 2024
Pledged investments - secured customer deposit product Amortized<br> cost Fair<br> value Amortized<br> cost Fair<br> value
Available-for-sale 20,016 18,995 22,888 21,062
Held-to-maturity 94,952 86,699 95,588 84,003

As at September 30, 2025, the Bank pledged Nil (December 31, 2024: $93.5 million) in non-US governments debt investment securities to secure the Bank's repurchase agreements. Where the secured party has the right to sell or repledge the collateral, the Bank disclosed such pledged financial assets separately in the accompanying consolidated balance sheets.

Taxability of Interest Income

None of the investments' interest income have received a specific preferential income tax treatment in any of the jurisdictions in which the Bank owns investments.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 6: Loans

The principal means of securing residential mortgages, personal, credit card and business loans are entitlements over assets and guarantees. Mortgage loans are generally repayable over periods of up to thirty years and personal and business loans are generally repayable over terms not exceeding five years. Government loans are repayable over a variety of terms which are individually negotiated. Amounts owing on credit cards are revolving and typically a minimum amount is due within 30 days from billing. The credit card portfolio is managed as a single portfolio and includes consumer and business cards. The effective yield on total loans as at September 30, 2025 is 5.94% (December 31, 2024: 6.29%). The interest receivable on total loans as at September 30, 2025 is $11.2 million (December 31, 2024: $8.0 million). The interest receivable is included in Accrued interest and other assets on the consolidated balance sheets and is excluded from all loan amounts disclosed in this note.

Loans' Credit Quality

The four credit quality classifications set out in the following tables are defined below and describe the credit quality of the Bank's lending portfolio. These classifications each encompass a range of more granular internal credit rating grades. Loans' internal credit ratings are assigned by the Bank's customer relationship managers as well as members of the Bank's jurisdictional and Group Credit Committees. The borrowers' financial condition is documented at loan origination and maintained periodically thereafter at a frequency which can be up to monthly for certain loans. The loans' performing status, as well as current economic trends, are continuously monitored. The Bank's jurisdictional and Group Credit Committees meet on a monthly basis. The Bank also has a Group Provisions and Impairments Committee which is responsible for approving significant provisions and other impairment charges.

A pass loan shall mean a loan that is expected to be repaid as agreed. A loan is classified as pass where the Bank is not expected to face repayment difficulties because the present and projected cash flows are sufficient to repay the debt and the repayment schedule as established by the agreement is being followed. Loans in this category are reviewed by the Bank’s management on at least an annual basis.

A special mention loan shall mean a loan under close monitoring by the Bank’s management on at least a quarterly basis. Loans in this category are currently still performing, but are potentially weak and present an undue credit risk exposure, but not to the point of justifying a classification of substandard.

A substandard loan shall mean a loan whose evident unreliability makes repayment doubtful and there is a threat of loss to the Bank unless the unreliability is averted. Loans in this category are under close monitoring by the Bank’s management on at least a quarterly basis.

A non-accrual loan shall mean either management is of the opinion full payment of principal or interest is in doubt or that the principal or interest is 90 days past due unless it is a residential mortgage loan which is well secured and collection efforts are reasonably expected to result in amounts due. Loans in this category are under close monitoring by the Bank’s management on at least a quarterly basis.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The amortized cost of loans by credit quality classification and allowance for expected credit losses by class of loans is as follows:

September 30, 2025 Pass Special<br> mention Substandard Non-accrual Total amortized cost Allowance for expected credit losses Total net loans
Commercial loans
Government 299,474 299,474 (265) 299,209
Commercial and industrial 196,683 902 681 17,147 215,413 (12,093) 203,320
Commercial overdrafts 66,420 706 207 67,333 (70) 67,263
Total commercial loans 562,577 1,608 681 17,354 582,220 (12,428) 569,792
Commercial real estate loans
Commercial mortgage 492,992 355 2,116 2,976 498,439 (1,064) 497,375
Construction 71,196 71,196 71,196
Total commercial real estate loans 564,188 355 2,116 2,976 569,635 (1,064) 568,571
Consumer loans
Automobile financing 19,143 4 139 19,286 (36) 19,250
Credit card 94,380 288 94,668 (2,255) 92,413
Overdrafts 33,656 20 33,676 (263) 33,413
Other consumer1 40,140 18 819 837 41,814 (899) 40,915
Total consumer loans 187,319 18 1,111 996 189,444 (3,453) 185,991
Residential mortgage loans 2,943,053 1,888 136,669 70,405 3,152,015 (8,724) 3,143,291
Total 4,257,137 3,869 140,577 91,731 4,493,314 (25,669) 4,467,645

1 Other consumer loans’ amortized cost includes $9 million of cash and portfolio secured lending and $26 million of lending secured by buildings in construction or other collateral.

December 31, 2024 Pass Special<br> mention Substandard Non-accrual Total amortized cost Allowance for expected credit losses Total net loans
Commercial loans
Government 266,303 266,303 (462) 265,841
Commercial and industrial 210,911 347 778 18,026 230,062 (11,147) 218,915
Commercial overdrafts 115,558 1,896 1 117,455 (75) 117,380
Total commercial loans 592,772 2,243 778 18,027 613,820 (11,684) 602,136
Commercial real estate loans
Commercial mortgage 572,875 858 2,301 17,520 593,554 (3,267) 590,287
Construction 48,484 48,484 48,484
Total commercial real estate loans 621,359 858 2,301 17,520 642,038 (3,267) 638,771
Consumer loans
Automobile financing 18,010 6 164 18,180 (34) 18,146
Credit card 90,433 244 90,677 (1,919) 88,758
Overdrafts 37,110 38 37,148 (378) 36,770
Other consumer1 45,180 832 733 46,745 (923) 45,822
Total consumer loans 190,733 1,082 935 192,750 (3,254) 189,496
Residential mortgage loans 2,849,805 23,619 137,093 40,175 3,050,692 (7,504) 3,043,188
Total 4,254,669 26,720 141,254 76,657 4,499,300 (25,709) 4,473,591

1 Other consumer loans’ amortized cost includes $10 million of cash and portfolio secured lending and $27 million of lending secured by buildings in construction or other collateral.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Based on the most recent analysis performed, the amortized cost of loans by year of origination and credit quality classification is as follows:

September 30, 2025 Pass Special<br> mention Substandard Non-accrual Total amortized cost
Loans by origination year
2025 422,141 920 423,061
2024 484,213 252 129 484,594
2023 295,416 14,990 40 310,446
2022 748,344 1,451 5,227 40 755,062
2021 375,808 437 264 376,509
Prior 1,732,340 355 119,820 91,031 1,943,546
Overdrafts and credit cards 198,875 706 288 227 200,096
Total amortized cost 4,257,137 3,869 140,577 91,731 4,493,314
December 31, 2024 Pass Special<br> mention Substandard Non-accrual Total amortized cost
--- --- --- --- --- ---
Loans by origination year
2024 497,053 267 497,320
2023 366,278 506 51 366,835
2022 759,398 888 750 4 761,040
2021 422,496 781 13 423,290
2020 270,060 451 32,733 7,503 310,747
Prior 1,690,525 22,704 106,754 69,047 1,889,030
Overdrafts and credit cards 248,859 1,896 244 39 251,038
Total amortized cost 4,254,669 26,720 141,254 76,657 4,499,300

Age Analysis of Past Due Loans (Including Non-Accrual Loans)

The following tables summarize the past due status of the loans. The aging of past due amounts are determined based on the contractual delinquency status of payments under the loan and this aging may be affected by the timing of the last business day at period end. Loans less than 30 days past due are included in current loans.

September 30, 2025 30 - 59 <br>days 60 - 89 <br>days 90 days or more Total past<br> due loans Total <br>current Total <br>amortized cost
Commercial loans
Government 299,474 299,474
Commercial and industrial 17,147 17,147 198,266 215,413
Commercial overdrafts 207 207 67,126 67,333
Total commercial loans 17,354 17,354 564,866 582,220
Commercial real estate loans
Commercial mortgage 332 2,976 3,308 495,131 498,439
Construction 71,196 71,196
Total commercial real estate loans 332 2,976 3,308 566,327 569,635
Consumer loans
Automobile financing 119 29 134 282 19,004 19,286
Credit card 424 188 288 900 93,768 94,668
Overdrafts 20 20 33,656 33,676
Other consumer 58 38 678 774 41,040 41,814
Total consumer loans 601 255 1,120 1,976 187,468 189,444
Residential mortgage loans 24,590 9,304 104,620 138,514 3,013,501 3,152,015
Total amortized cost 25,523 9,559 126,070 161,152 4,332,162 4,493,314

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

December 31, 2024 30 - 59 <br>days 60 - 89 <br>days 90 days or more Total past<br> due loans Total <br>current Total <br>amortized <br>cost
Commercial loans
Government 266,303 266,303
Commercial and industrial 217 17,227 17,444 212,618 230,062
Commercial overdrafts 1 1 117,454 117,455
Total commercial loans 217 17,228 17,445 596,375 613,820
Commercial real estate loans
Commercial mortgage 346 17,520 17,866 575,688 593,554
Construction 48,484 48,484
Total commercial real estate loans 346 17,520 17,866 624,172 642,038
Consumer loans
Automobile financing 83 35 153 271 17,909 18,180
Credit card 514 280 244 1,038 89,639 90,677
Overdrafts 38 38 37,110 37,148
Other consumer 739 31 733 1,503 45,242 46,745
Total consumer loans 1,336 346 1,168 2,850 189,900 192,750
Residential mortgage loans 17,520 5,797 106,965 130,282 2,920,410 3,050,692
Total amortized cost 19,419 6,143 142,881 168,443 4,330,857 4,499,300

Changes in Allowances For Credit Losses

Allowance for expected credit losses remained relatively flat during the nine months ended September 30, 2025. As disclosed in Note 2 of the December 31, 2024 Audited Consolidated Financial Statements, the Bank continuously collects and maintains attributes related to financial instruments within the scope of CECL, including current conditions, and reasonable and supportable assumptions about future economic conditions.

Nine months ended September 30, 2025
Commercial Commercial<br> real estate Consumer Residential<br> mortgage Total
Balance at the beginning of period 11,684 3,267 3,254 7,504 25,709
Provision increase (decrease) 1,250 (2,119) 61 1,170 362
Recoveries of previous charge-offs 1,407 114 1,521
Charge-offs, by origination year
2025
2024 (7) (7)
2023 (30) (30)
2022 (2) (2)
2021 (15) (15)
Prior (504) (84) (23) (93) (704)
Overdrafts and credit cards (17) (1,232) (1,249)
Other 15 10 59 84
Allowances for expected credit losses at end of period 12,428 1,064 3,453 8,724 25,669

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Nine months ended September 30, 2024
Commercial Commercial<br> real estate Consumer Residential<br> mortgage Total
Balance at the beginning of period 11,248 1,441 3,096 9,974 25,759
Provision increase (decrease) 318 2,849 518 (2,267) 1,418
Recoveries of previous charge-offs 895 191 1,086
Charge-offs, by origination year
2024
2023 (2) (2)
2022
2021 (146) (146)
2020 (146) (146)
Prior (261) (27) (101) (531) (920)
Overdrafts and credit cards (5) (1,278) (1,283)
Other 1 5 19 25
Allowances for expected credit losses at end of period 11,301 3,971 3,133 7,386 25,791

Collateral-dependent loans

Management identified that the repayment of certain commercial and consumer mortgage loans is expected to be provided substantially through the operation or the sale of the collateral pledged to the Bank ("collateral-dependent loans"). The Bank believes that for the vast majority of loans identified as collateral-dependent, the sale of the collateral will be sufficient to fully reimburse the loan's carrying amount.

Non-Performing Loans

During the nine months ended September 30, 2025, no interest was recognized on non-accrual loans. No credit deteriorated loans were purchased during the period.

September 30, 2025 December 31, 2024
Non-accrual loans with an allowance Non-accrual loans without an allowance Past<br> due 90 days or more and accruing Total non-<br>performing<br> loans Non-accrual loans with an allowance Non-accrual loans without an allowance Past<br> due 90 days or more and accruing Total non-<br>performing<br> loans
Commercial loans
Commercial and industrial 17,147 17,147 17,209 817 18,026
Commercial overdrafts 207 207 1 1
Total commercial loans 17,147 207 17,354 17,209 818 18,027
Commercial real estate loans
Commercial mortgage 2,891 85 2,976 17,410 110 17,520
Total commercial real estate loans 2,891 85 2,976 17,410 110 17,520
Consumer loans
Automobile financing 114 25 139 126 38 164
Credit card 288 288 244 244
Overdrafts 20 20 38 38
Other consumer 492 345 837 528 205 733
Total consumer loans 606 390 288 1,284 654 281 244 1,179
Residential mortgage loans 51,337 19,068 41,972 112,377 22,630 17,545 72,693 112,868
Total non-performing loans 71,981 19,750 42,260 133,991 57,903 18,754 72,937 149,594

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Loan Modifications Made to Borrowers Experiencing Financial Difficulty

The following table summarizes the amortized cost basis of loan modifications as at September 30, 2025 and September 30, 2024 made to borrowers experiencing financial difficulty during the nine-months ended September 30, 2025 and September 30, 2024.

Amortized cost basis Weighted average financial effects
September 30, 2025 Term extension and interest rate<br> reduction Payments delay in # of months Term extension Interest rate<br> reduction In % of the class of loans Months of <br> payment delay Months of term extension Interest rate<br> reduction
Residential mortgage loans 2,196 30,763 5,061 1.2 % 6 3.1 %
Amortized cost basis Weighted average financial effects
--- --- --- --- --- --- --- --- --- --- ---
September 30, 2024 Term extension and interest rate<br> reduction Payments delay in # of months Term extension Interest rate<br> reduction In % of the class of loans Months of <br> payment delay Months of term extension Interest rate<br> reduction
Commercial mortgage 642 0.1 % 0 3.0 %
Other consumer 59 787 1.6 % 34 4.0 %
Residential mortgage loans 20,868 1,592 5,264 0.9 % 28 1.9 %

Age analysis and subsequent default of modified loans.

As at September 30, 2025 and September 30, 2024, all loans for which a concession was granted during the preceding 12 months are current, except for the following:

Residential mortgage loans:

–$5.4 million (September 30, 2024: Nil) of residential mortgage loans for which a reduction in interest rate was granted are 30 to 59 days past due; and

–$0.1 million (September 30, 2024: Nil) of residential mortgage loans for which a reduction in interest rate was granted had a payment default and are 90 days or more past due.

Note 7: Credit risk concentrations

Concentrations of credit risk in the lending and off-balance sheet credit-related arrangements portfolios arise when a number of customers are engaged in similar business activities, are in the same geographic region, or when they have similar economic features that would cause their ability to meet contractual obligations to be similarly affected by changes in economic conditions. The Bank regularly monitors various segments of its credit risk portfolio to assess potential concentrations of risks and to obtain collateral when deemed necessary. In the Bank's commercial portfolio, risk concentrations are evaluated primarily by industry and by geographic region of loan origination. In the consumer portfolio, concentrations are evaluated primarily by products. Credit exposures include loans, guarantees and acceptances, letters of credit and commitments for undrawn lines of credit. Unconditionally cancellable credit cards and overdraft lines of credit are excluded from the tables below.

The following table summarizes the credit exposure of the Bank by geographic region. The exposure amounts disclosed below do not include accrued interest and are gross of allowances for credit losses and gross of collateral held.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

September 30, 2025 December 31, 2024
Geographic region Cash and cash equivalents, resell agreements and<br> short-term<br> investments Loans Off-balance<br> sheet Total credit<br> exposure Cash and cash equivalents, resell agreements and<br> short-term<br> investments Loans Off-balance<br> sheet Total credit<br> exposure
Belgium 3,346 3,346 2,478 2,478
Bermuda 46,642 1,516,824 213,211 1,776,677 37,227 1,631,461 186,210 1,854,898
Canada 1,019,817 1,019,817 1,417,882 1,417,882
Cayman Islands 33,465 1,025,895 205,127 1,264,487 40,675 1,068,142 218,817 1,327,634
France 117,301 117,301 207,687 207,687
Germany 7,624 7,624 1,178 1,178
Guernsey 542,521 104,444 646,965 1 552,994 103,979 656,974
Ireland 10,600 10,600 8,672 8,672
Japan 133,512 133,512 121,862 121,862
Jersey 319,198 36,100 355,298 223,964 68,217 292,181
Mauritius 1,481 1,481 1,055 1,055
Norway 47,499 47,499 100,148 100,148
Switzerland 8,522 8,522 3,377 3,377
The Bahamas 89 3,022 3,111 184 3,791 3,975
United Kingdom 1,343,902 1,085,854 135,687 2,565,443 1,240,116 1,018,948 137,654 2,396,718
United States 712,603 712,603 599,264 599,264
Other 1,676 1,676 1,705 1,705
Total gross exposure 3,488,079 4,493,314 694,569 8,675,962 3,783,511 4,499,300 714,877 8,997,688

Note 8: Deposits

By Maturity
Demand Total <br>demand <br>deposits Term Total <br>term <br>deposits
September 30, 2025 Non-interest<br> bearing Interest <br>bearing Within 3<br> months 3 to 6<br> months 6 to 12<br> months After 12 months Total <br>deposits
Demand or less than $100k¹ 2,581,924 6,191,334 8,773,258 53,547 20,184 21,618 10,066 105,415 8,878,673
Term - $100k or more N/A N/A 2,983,109 462,147 359,441 37,597 3,842,294 3,842,294
Total deposits 2,581,924 6,191,334 8,773,258 3,036,656 482,331 381,059 47,663 3,947,709 12,720,967
Demand Total <br>demand <br>deposits Term Total <br>term <br>deposits
December 31, 2024 Non-interest<br> bearing Interest <br>bearing Within 3<br> months 3 to 6<br> months 6 to 12<br> months After 12 months Total <br>deposits
Demand or less than $100k¹ 2,687,877 5,579,775 8,267,652 51,608 18,035 19,912 10,395 99,950 8,367,602
Term - $100k or more N/A N/A 3,540,636 416,374 348,301 72,996 4,378,307 4,378,307
Total deposits 2,687,877 5,579,775 8,267,652 3,592,244 434,409 368,213 83,391 4,478,257 12,745,909

¹The weighted-average interest rate on interest-bearing demand deposits as at September 30, 2025 is 0.75% (December 31, 2024: 0.87%).

By Type and Segment September 30, 2025 December 31, 2024
Payable <br>on demand Payable on a<br>fixed date Total Payable <br>on demand Payable on a<br>fixed date Total
Bermuda 3,889,335 900,675 4,790,010 3,535,770 1,245,294 4,781,064
Cayman 2,791,287 976,675 3,767,962 2,793,194 1,177,909 3,971,103
Channel Islands and the UK 2,092,636 2,070,359 4,162,995 1,938,688 2,055,054 3,993,742
Total deposits 8,773,258 3,947,709 12,720,967 8,267,652 4,478,257 12,745,909

Note 9: Employee benefit plans

The Bank maintains trusteed pension plans including non-contributory defined benefit plans and a number of defined contribution plans, and provides post-retirement medical benefits to its qualifying retirees. The defined benefit provisions under the pension plans are generally based upon years of service and average salary during the relevant years of employment. The defined benefit and post-retirement medical plans are not open to new participants and are non-contributory and the funding required is provided by the Bank, based upon the advice of independent actuaries. The defined benefit pension plans are in the Bermuda, Guernsey and UK jurisdictions, and the defined benefit post-retirement medical plan is in Bermuda. The Bank has a residual obligation on top of its defined contribution plan in Mauritius.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The Bank included an estimate of the 2025 Bank contribution and estimated benefit payments for the next ten years under the pension and post-retirement plans in its audited financial statements for the year ended December 31, 2024. During the nine months ended September 30, 2025, there have been no material revisions to these estimates.

Three months ended Nine months ended
Line item in the consolidated statements of operations September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Defined benefit pension expense (income)
Interest cost Non-service employee benefits expense 1,313 1,297 3,912 3,853
Expected return on plan assets Non-service employee benefits expense (1,700) (1,576) (5,028) (4,683)
Amortization of net actuarial (gains) losses Non-service employee benefits expense 586 591 1,756 1,769
Amortization of prior service (credit) cost Non-service employee benefits expense 20 21 61 60
Total defined benefit pension expense (income) 219 333 701 999
Post-retirement medical benefit expense (income)
Service cost Salaries and other employee benefits 10 14 32 41
Interest cost Non-service employee benefits expense 1,092 1,096 3,277 3,289
Amortization of net actuarial (gains) losses Non-service employee benefits expense 131 131 393 393
Amortization of prior service (credit) cost Non-service employee benefits expense (151) (578) (452) (1,734)
Total post-retirement medical benefit expense (income) 1,082 663 3,250 1,989

The components of defined benefit pension expense (income) and post-retirement benefit expense (income) other than the service cost component are included in the line item non-service employee benefits expense in the consolidated statements of income.

Note 10: Credit related arrangements, repurchase agreements and commitments

Commitments

The Bank enters into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of the Bank's commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for expected credit losses.

The Bank has a facility with one of its custodians, whereby the Bank may offer up to $200 million of standby letters of credit to its customers on a fully secured basis. Under the standard terms of the facility, the custodian has the right to set-off against securities held of 110% of the utilized facility. At September 30, 2025, $136.8 million (December 31, 2024: $138.4 million) of standby letters of credit were issued under this facility.

Outstanding unfunded commitments to extend credit September 30, 2025 December 31, 2024
Commitments to extend credit 449,093 475,289
Documentary and commercial letters of credit 50 1,576
Total unfunded commitments to extend credit 449,143 476,865
Allowance for credit losses (122) (90)

Credit-Related Arrangements

Standby letters of credit and letters of guarantee are issued at the request of a Bank customer in order to secure the customer’s payment or performance obligations to a third party. These guarantees represent an irrevocable obligation of the Bank to pay the third party beneficiary upon presentation of the guarantee and satisfaction of the documentary requirements stipulated therein, without investigation as to the validity of the beneficiary’s claim against the customer. Generally, the term of the standby letters of credit does not exceed one year, while the term of the letters of guarantee does not exceed four years. The types and amounts of collateral security held by the Bank for these standby letters of credit and letters of guarantee are generally represented by deposits with the Bank or a charge over assets held in mutual funds.

The Bank considers the fees collected in connection with the issuance of standby letters of credit and letters of guarantee to be representative of the fair value of its obligation undertaken in issuing the guarantee. In accordance with applicable accounting standards related to guarantees, the Bank defers fees collected in connection with the issuance of standby letters of credit and letters of guarantee. The fees are then recognized in income proportionately over the life of the credit agreements. The following table presents the outstanding financial guarantees. Collateral is shown at estimated market value less selling cost. Where the collateral is cash, it is shown gross including accrued income.

September 30, 2025 December 31, 2024
Outstanding financial guarantees Gross Collateral Net Gross Collateral Net
Standby letters of credit 243,925 221,775 22,150 236,220 207,267 28,953
Letters of guarantee 1,501 1,465 36 1,792 1,756 36
Total 245,426 223,240 22,186 238,012 209,023 28,989

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Repurchase agreements

The Bank utilizes repurchase agreements and resell agreements (reverse repurchase agreements) to manage liquidity. These agreements are carried at the amounts at which the securities will be subsequently sold or repurchased. The risks of these transactions include changes in the fair value of the securities posted or received as collateral and other credit related events. The Bank manages these risks by ensuring that the collateral involved is appropriate and by monitoring the value of the securities posted or received as collateral on a daily basis.

As at September 30, 2025, the Bank had 13 open positions (December 31, 2024: 15) in resell agreements with a remaining maturity of less than 365 days involving pools of mortgages issued by US federal agencies and Non-US government debt securities. The carrying value of these resell agreements is $1.2 billion (December 31, 2024: $1.2 billion) and are included in securities purchased under agreements to resell on the consolidated balance sheets. As at September 30, 2025, there were no positions (December 31, 2024: no positions) which were offset on the consolidated balance sheets to arrive at the carrying value, and there was no collateral amount which was available to offset against the future settlement amount.

As at September 30, 2025, the Bank had no open positions in a repurchase agreement. As at December 31, 2024, the Bank had one open position in a repurchase agreement with a remaining maturity of less than 30 days involving one Non-US government debt security, with the carrying value of the repurchase agreement being $92.6 million.

Legal Proceedings

There are actions and legal proceedings pending against the Bank and its subsidiaries which arose in the normal course of its business. Management, after reviewing all actions and proceedings pending against or involving the Bank and its subsidiaries, considers that the resolution of these matters would in the aggregate not be material to the consolidated financial position of the Bank, except as noted in the following paragraph.

As publicly announced, in November 2013, the US Attorney’s Office for the Southern District of New York applied for and secured the issuance of so-called John Doe Summonses to six US financial institutions with which the Bank had correspondent bank relationships in connection with a US cross border tax investigation. On August 3, 2021, the Bank announced it had reached a resolution with the United States Department of Justice concerning this inquiry. The resolution is in the form of a non-prosecution agreement with a three-year term which concluded in July 2024. The Bank paid $5.6 million in respect of Forfeiture and Tax Restitution Amounts which is consistent with that previously provisioned for.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 11: Leases

The Bank enters into operating lease agreements either as the lessee or the lessor, mostly for office and parking spaces as well as for small office equipment. The terms of the existing leases, including renewal options that are reasonably certain to be exercised, extend up to the year 2039. Certain lease payments will be adjusted during the related lease's term based on movements in the relevant consumer price index.

Three months ended Nine months ended
September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Lease costs
Operating lease costs 1,576 1,927 5,361 4,700
Short-term lease costs 421 341 1,028 2,181
Sublease income (8) (580)
Total net lease cost 1,997 2,260 6,389 6,301
Operating lease income 97 333 295 1,027
Other information for the period
Right-of-use assets related to new operating lease liabilities 3,814 4,580 1,262
Operating cash flows from operating leases 1,280 1,619 4,254 5,467
Other information at end of period September 30, 2025 December 31, 2024
Operating leases right-of-use assets (included in other assets on the balance sheets) 37,979 35,347
Operating lease liabilities (included in other liabilities on the balance sheets) 38,799 35,604
Weighted average remaining lease term for operating leases (in years) 11.69 11.87
Weighted average discount rate for operating leases 5.91 % 5.93 %
The following table summarizes the maturity analysis of the Bank's commitments for long-term leases as at December 31, 2024:
Year ending December 31 Operating Leases
2025 5,249
2026 4,910
2027 4,911
2028 4,909
2029 3,667
2030 & thereafter 16,746
Total commitments 40,392
Less: effect of discounting cash flows to their present value (4,788)
Operating lease liabilities 35,604

Note 12: Segmented information

The Bank is managed by the Chairman & CEO, its Chief Operating Decision Maker ("CODM"), on a geographic basis. The Bank presents four reportable segments, three geographical and one other: Bermuda, Cayman, Channel Islands and the UK, and Other. The Other segment is composed of several non-reportable operating segments that have been aggregated in accordance with GAAP. The Bermuda, Cayman, and Channels Islands and UK segments has a managing director who reports to the Chairman & CEO. As its relates to the Other segment, each operating segment has a managing director that reports to the Group Head of Trust or Chief Operating Officer who ultimately reports to The Chairman & CEO. The Chairman & CEO and the segment managing director have final authority over resource allocation decisions and performance assessment.

The geographic segments reflect this management structure and the manner in which financial information is currently evaluated by the Chairman & CEO in assessing operating

performance. Segment results are determined based on the Bank's management reporting system, which assigns balance sheet and statement of operations items to each of

the geographic segments. The process is designed around the Bank's organizational and management structure and, accordingly, the results derived are not necessarily

comparable with similar information published by other financial institutions. A description of each reportable segment and table of financial results is presented below.

Accounting policies of the reportable segments are the same as those described in Note 2 of the Bank's audited financial statements for the year ended December 31, 2024. Transactions between segments are accounted for on an accrual basis and are all eliminated upon consolidation. The Bank generally does not allocate assets, revenues and expenses among its business segments, with the exception of certain corporate overhead expenses and loan participation revenue and expenses. Loan participation revenue and expenses are allocated pro-rata based upon the percentage of the total loan funded by each jurisdiction participating in the loan. Other expenses are comprised of marketing, non-service employee benefits and other non-interest expenses.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The Bermuda segment provides a comprehensive range of retail, commercial and private banking services. Retail services are offered to individuals and small to medium-sized businesses through three branch locations and through internet banking, mobile banking, automated teller machines and debit cards. Retail services include deposit services,

consumer and mortgage lending, credit cards and personal insurance products. Commercial banking includes commercial lending and mortgages, cash management, payroll

services, remote banking and letters of credit. Treasury services include money market and foreign exchange activities. Bermuda’s wealth management offering consists of

Butterfield Asset Management Limited, which provides investment management, advisory and brokerage services and Butterfield Trust (Bermuda) Limited, which provides trust,

estate, company management and custody services. Bermuda is also the location of the Bank's head offices and accordingly, retains the unallocated corporate overhead

expenses.

The Cayman segment provides a comprehensive range of retail, commercial and private banking services. Retail services are offered to individuals and small to medium-sized businesses through three branch locations and through internet banking, mobile banking, ATMs and debit cards. Retail services include deposit services, consumer and

mortgage lending, credit cards and property/auto insurance. Commercial banking includes commercial lending and mortgages, cash management, payroll services, remote

banking and letters of credit. Treasury services include money market and foreign exchange activities. Cayman’s wealth management offering comprises investment

management, advisory and brokerage services and Butterfield Trust (Cayman) Limited, which provides trust, estate and company management.

The Channel Islands and the UK segment includes the jurisdictions of Guernsey and Jersey (Channel Islands), and the UK. In the Channel Islands, a broad range of services

are provided to individuals, private clients, trusts, financial institutions and funds including deposit services, mortgage lending, credit cards, private and corporate banking, treasury services, internet banking, wealth management and fiduciary services. The UK jurisdiction provides mortgage services for high-value residential properties.

The Other segment includes the jurisdictions of The Bahamas, Canada, Mauritius, Singapore and Switzerland. These operating segments individually and collectively do not

meet the quantitative threshold for segmented reporting and are therefore aggregated as non-reportable operating segments.

Total Assets by Segment September 30, 2025 December 31, 2024
Bermuda 5,360,986 5,438,279
Cayman 4,143,817 4,337,829
Channel Islands and the UK 4,615,771 4,526,623
Other 72,096 62,682
Total assets before inter-segment eliminations 14,192,670 14,365,413
Less: inter-segment eliminations (106,315) (134,017)
Total 14,086,355 14,231,396

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Three months ended September 30, 2025 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 54,160 38,635 46,573 36 139,404 139,404
Interest income - Inter-segment 760 760 (760)
Interest income Total 54,160 39,395 46,573 36 140,164 (760) 139,404
Interest expense
Interest expense 9,295 9,328 28,060 46,683 46,683
Interest expense - Inter-segment 757 3 760 (760)
Interest expense Total 10,052 9,328 28,063 47,443 (760) 46,683
Net interest income
Net interest income 44,865 29,307 18,513 36 92,721 92,721
Net interest income - Inter-segment (757) 760 (3)
Net interest income Total 44,108 30,067 18,510 36 92,721 92,721
Non-interest income 26,034 19,072 10,825 11,746 67,677 (6,496) 61,181
Allowance for credit losses (472) 51 (143) (564) (564)
Net revenue before gains and losses 69,670 49,190 29,192 11,782 159,834 (6,496) 153,338
Gains and losses 1 (62) (61) (61)
Total net revenue 69,671 49,190 29,130 11,782 159,773 (6,496) 153,277
Expenses
Salaries and other employee benefits 20,844 6,898 11,562 7,300 46,604 46,604
Technology and communications 7,866 3,216 2,384 342 13,808 13,808
Non-income taxes 4,250 244 696 322 5,512 5,512
Professional and outside services 3,123 484 1,060 284 4,951 4,951
Property 2,270 726 1,494 659 5,149 5,149
Amortization of intangible assets 358 275 906 431 1,970 1,970
Depreciation 3,378 1,143 648 116 5,285 5,285
Income tax benefit (expense) 1,082 365 1,447 1,447
Other expenses 10,360 3,227 (517) 915 13,985 (6,496) 7,489
Expenses Total 52,449 16,213 19,315 10,734 98,711 (6,496) 92,215
Net income 17,222 32,977 9,815 1,048 61,062 61,062

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Three months ended September 30, 2024 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 55,518 39,742 54,651 63 149,974 149,974
Interest income - Inter-segment 1,965 1,165 139 3,269 (3,269)
Interest income Total 57,483 40,907 54,790 63 153,243 (3,269) 149,974
Interest expense
Interest expense 13,218 12,635 36,068 61,921 61,921
Interest expense - Inter-segment 1,281 1,988 3,269 (3,269)
Interest expense Total 14,499 12,635 38,056 65,190 (3,269) 61,921
Net interest income
Net interest income 42,300 27,107 18,583 63 88,053 88,053
Net interest income - Inter-segment 684 1,165 (1,849)
Net interest income Total 42,984 28,272 16,734 63 88,053 88,053
Non-interest income 23,145 16,581 11,345 10,756 61,827 (5,790) 56,037
Allowance for credit losses (1,256) (69) 9 (1,316) (1,316)
Net revenue before gains and losses 64,873 44,784 28,088 10,819 148,564 (5,790) 142,774
Gains and losses 1 (53) (52) (52)
Total net revenue 64,874 44,784 28,035 10,819 148,512 (5,790) 142,722
Expenses
Salaries and other employee benefits 18,651 6,833 11,606 6,613 43,703 43,703
Technology and communications 7,764 3,593 2,531 317 14,205 14,205
Non-income taxes 4,084 548 555 280 5,467 5,467
Professional and outside services 2,993 414 1,177 230 4,814 4,814
Property 2,168 745 2,088 631 5,632 5,632
Amortization of intangible assets 358 276 885 423 1,942 1,942
Depreciation 3,262 1,109 664 147 5,182 5,182
Income tax benefit (expense) 1,003 237 1,240 1,240
Other expenses 9,485 3,495 (157) 788 13,611 (5,790) 7,821
Expenses Total 48,765 17,013 20,352 9,666 95,796 (5,790) 90,006
Net income 16,109 27,771 7,683 1,153 52,716 52,716

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Nine months ended September 30, 2025 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 161,877 118,583 139,759 109 420,328 420,328
Interest income - Inter-segment 278 2,521 35 2,834 (2,834)
Interest income Total 162,155 121,104 139,794 109 423,162 (2,834) 420,328
Interest expense
Interest expense 32,845 30,109 85,921 148,875 148,875
Interest expense - Inter-segment 2,543 291 2,834 (2,834)
Interest expense Total 35,388 30,109 86,212 151,709 (2,834) 148,875
Net interest income
Net interest income 129,032 88,474 53,838 109 271,453 271,453
Net interest income - Inter-segment (2,265) 2,521 (256)
Net interest income Total 126,767 90,995 53,582 109 271,453 271,453
Non-interest income 73,264 56,065 32,312 33,839 195,480 (18,850) 176,630
Allowance for credit losses 2,481 (106) (2,769) (394) (394)
Net revenue before gains and losses 202,512 146,954 83,125 33,948 466,539 (18,850) 447,689
Gains and losses 24 9 33 33
Total net revenue 202,536 146,954 83,134 33,948 466,572 (18,850) 447,722
Expenses
Salaries and other employee benefits 59,474 21,905 34,402 21,792 137,573 137,573
Technology and communications 23,672 10,223 6,758 1,037 41,690 41,690
Non-income taxes 13,557 1,236 1,938 1,124 17,855 17,855
Professional and outside services 9,862 1,456 3,474 755 15,547 15,547
Property 6,909 2,256 5,221 1,922 16,308 16,308
Amortization of intangible assets 1,072 826 2,673 1,273 5,844 5,844
Depreciation 10,233 3,367 2,084 370 16,054 16,054
Income tax benefit (expense) 2,944 890 3,834 3,834
Other expenses 31,208 10,409 (504) 2,603 43,716 (18,850) 24,866
Expenses Total 155,987 51,678 58,990 31,766 298,421 (18,850) 279,571
Net income 46,549 95,276 24,144 2,182 168,151 168,151

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Nine months ended September 30, 2024 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 166,633 120,931 152,518 185 440,267 440,267
Interest income - Inter-segment 6,112 4,224 1,050 11,386 (11,386)
Interest income Total 172,745 125,155 153,568 185 451,653 (11,386) 440,267
Interest expense
Interest expense 40,498 35,325 101,877 177,700 177,700
Interest expense - Inter-segment 5,225 29 6,132 11,386 (11,386)
Interest expense Total 45,723 35,354 108,009 189,086 (11,386) 177,700
Net interest income
Net interest income 126,135 85,606 50,641 185 262,567 262,567
Net interest income - Inter-segment 888 4,194 (5,082)
Net interest income Total 127,023 89,800 45,559 185 262,567 262,567
Non-interest income 67,877 50,454 33,440 31,638 183,409 (16,632) 166,777
Allowance for credit losses (1,487) 136 (39) (1,390) (1,390)
Net revenue before gains and losses 193,413 140,390 78,960 31,823 444,586 (16,632) 427,954
Gains and losses 105 144 249 249
Total net revenue 193,518 140,390 79,104 31,823 444,835 (16,632) 428,203
Expenses
Salaries and other employee benefits 56,408 20,274 34,141 19,508 130,331 130,331
Technology and communications 22,879 10,605 7,372 1,010 41,866 41,866
Non-income taxes 13,116 1,544 1,702 996 17,358 17,358
Professional and outside services 10,332 1,697 4,241 744 17,014 17,014
Property 6,819 2,155 6,133 1,854 16,961 16,961
Amortization of intangible assets 1,072 826 2,591 1,273 5,762 5,762
Depreciation 9,826 3,445 2,413 448 16,132 16,132
Income tax benefit (expense) 2,368 657 3,025 3,025
Other expenses 27,862 9,771 (263) 2,278 39,648 (16,632) 23,016
Expenses Total 148,314 50,317 60,698 28,768 288,097 (16,632) 271,465
Net income 45,204 90,073 18,406 3,055 156,738 156,738

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 13: Derivative instruments and risk management

The Bank uses derivatives for risk management purposes and to meet the needs of its customers. The Bank’s derivative contracts principally involve over-the-counter ("OTC") transactions that are negotiated privately between the Bank and the counterparty to the contract and include interest rate contracts and foreign exchange contracts.

The Bank may pursue opportunities to reduce its exposure to credit losses on derivatives by entering into International Swaps and Derivatives Associations ("ISDAs"). Depending on the nature of the derivative transaction, bilateral collateral arrangements may be used, as well. When the Bank is engaged in more than one outstanding derivative transaction with the same counterparty, and also has a legally enforceable master netting agreement with that counterparty, the net marked-to-market exposure represents the netting of the positive and negative exposures with that counterparty. When there is a net negative exposure, the Bank regards its credit exposure to the counterparty as being zero. The net marked-to-market position with a particular counterparty represents a reasonable measure of credit risk when there is a legally enforceable master netting agreement between the Bank and that counterparty.

Certain of these agreements contain credit risk-related contingent features in which the counterparty has the option to accelerate cash settlement of the Bank's net derivative liabilities with the counterparty in the event the Bank's credit rating falls below specified levels or the liabilities reach certain levels.

All derivative financial instruments, whether designated as hedges or not, are recorded on the consolidated balance sheets at fair value within other assets or other liabilities. These amounts include the effect of netting. The accounting for changes in the fair value of a derivative in the consolidated statements of operations depends on whether the contract has been designated as a hedge and qualifies for hedge accounting.

Notional Amounts

The notional amounts are not recorded as assets or liabilities on the consolidated balance sheets as they represent the face amount of the contract to which a rate or price is applied to determine the amount of cash flows to be exchanged. Notional amounts represent the volume of outstanding transactions and do not represent the potential gain or loss associated with market risk or credit risk of such instruments. Credit risk is limited to the positive fair value of the derivative instrument, which is significantly less than the notional amount.

Fair Value

Derivative instruments, in the absence of any compensating up-front cash payments, generally have no market value at inception. They obtain value, positive or negative, as relevant interest rates, exchange rates, equity or commodity prices or indices change. The potential for derivatives to increase or decrease in value as a result of the foregoing factors is generally referred to as market risk. Market risk is managed within clearly defined parameters as prescribed by senior management of the Bank. The fair value is defined as the profit or loss associated with replacing the derivative contracts at prevailing market prices.

Risk Management Derivatives

The Bank enters into interest derivative contracts as part of its overall interest rate risk management strategy to minimize significant unplanned fluctuations in earnings that are caused by interest rate volatility. The Bank’s goal is to manage interest rate sensitivity by modifying the repricing or maturity characteristics of certain consolidated balance sheet assets and liabilities so that movements in interest rates do not adversely affect the net interest margin. Derivative instruments that are used as part of the Bank’s risk management strategy include interest rate swap contracts that have indices related to the pricing of specific consolidated balance sheet assets and liabilities. Interest rate swaps generally involve the exchange of fixed and variable-rate interest payments between two parties, based on a common notional principal amount and maturity date. The Bank uses foreign currency derivative instruments to hedge its exposure to foreign currency risk. Certain hedging relationships are formally designated and qualify for hedge accounting as fair value or net investment hedges. Risk management derivatives comprise fair value hedges, net investment hedges and derivatives not formally designated as hedges as described below.

Fair value hedges include designated currency swaps that are used to minimize the Bank's exposure to variability in the fair value of AFS investments due to movements in foreign exchange rates. The effective portion of changes in the fair value of the hedged items attributable to foreign exchange rates is recognized in current year earnings consistent with the related change in fair value of the hedging instrument. For fair value hedges, hedging effectiveness of the hedged item and the hedging instrument are assessed and managed at inception and on an ongoing basis using a partial-term method.

Net investment hedges include designated currency swaps and qualifying non-derivative instruments and are used to minimize the Bank’s exposure to variability in the foreign

currency translation of net investments in foreign operations. The effective portion of changes in the fair value of the hedging instrument is recognized in Accumulated other comprehensive income (loss) ("AOCIL") consistent with the related translation gains and losses of the hedged net investment. For net investment hedges, all critical terms of the hedged item and the hedging instrument are matched at inception and on an ongoing basis to minimize the risk of hedge ineffectiveness.

For derivatives designated as net investment hedges, the Bank follows the method based on changes in spot exchange rates. Accordingly:

  • The change in the fair value of the derivative instrument that is reported in AOCIL (i.e., the effective portion) is determined by the changes in spot exchange rates.

  • The change in the fair value of the derivative instrument attributable to changes in the difference between the forward rate and spot rate are excluded from the measure

of the hedge ineffectiveness and that difference is reported directly in the consolidated statements of operations under foreign exchange revenue.

Amounts recorded in AOCIL are reclassified to earnings only upon the sale or substantial liquidation of an investment in a foreign subsidiary.

For foreign-currency-denominated financial instruments that are designated as hedges of net investments in foreign operations, the translation gain or loss that is recorded in AOCIL is based on the spot exchange rate between the reporting currency of the Bank and the functional currency of the respective subsidiary. See Note 20: Accumulated other comprehensive income (loss) for details on the amount recognized into AOCIL during the current period from translation gain or loss.

Derivatives not formally designated as hedges are entered into to manage the foreign exchange risk of the Bank's exposure. Changes in the fair value of derivative instruments not formally designated as hedges are recognized in foreign exchange revenue.

Client service derivatives

The Bank enters into foreign exchange contracts primarily to meet the foreign exchange needs of its customers. Foreign exchange contracts are agreements to exchange specific amounts of currencies at a future date at a specified rate of exchange. Changes in the fair value of client services derivative instruments are recognized in foreign exchange revenue.

The following table shows the aggregate notional amounts of derivative contracts outstanding listed by type and respective gross positive or negative fair values and classified by those used for risk management (sub-classified as hedging and those that do not qualify for hedge accounting), client services and credit derivatives. Fair value of derivatives is

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

recorded in the consolidated balance sheets in other assets and other liabilities. Gross positive fair values are recorded in other assets and gross negative fair values are recorded in other liabilities, subject to netting when master netting agreements are in place.

September 30, 2025 Derivative instrument Number of contracts Notional <br>amounts Gross<br> positive<br>fair value Gross<br> negative<br>fair value Net <br>fair value
Risk management derivatives
Net investment hedges Currency swaps 3 121,419 65 (468) (403)
Fair value hedges Currency swaps 2 130,955 815 815
Derivatives not formally designated as hedging instruments Currency swaps 65 1,273,777 10,989 (3,145) 7,844
Subtotal risk management derivatives 1,526,151 11,869 (3,613) 8,256
Client services derivatives Spot and forward foreign exchange 120 207,154 916 (744) 172
Total derivative instruments 1,733,305 12,785 (4,357) 8,428
December 31, 2024 Derivative instrument Number of contracts Notional <br>amounts Gross<br> positive<br>fair value Gross<br> negative<br>fair value Net <br>fair value
Risk management derivatives
Net investment hedges Currency swaps 1 23,235 986 986
Fair value hedges Currency swaps 3 139,512 (4,496) (4,496)
Derivatives not formally designated as hedging instruments Currency swaps 54 2,008,630 44,038 (7,181) 36,857
Subtotal risk management derivatives 2,171,377 45,024 (11,677) 33,347
Client services derivatives Spot and forward foreign exchange 145 217,490 1,681 (1,589) 92
Total derivative instruments 2,388,867 46,705 (13,266) 33,439

In addition to the above, as at September 30, 2025 foreign denominated deposits of £206.3 million (December 31, 2024: £277.1 million); SGD1.6 million (December 31, 2024: SGD1.5 million) and CHF0.4 million (December 31, 2024: CHF0.4 million) were designated as a hedge of foreign exchange risk associated with the net investment in foreign operations.

The Bank manages derivative exposure by monitoring the credit risk associated with each counterparty using counterparty specific credit risk limits, using master netting arrangements where appropriate and obtaining collateral. The Bank elected to offset in the consolidated balance sheets certain gross derivative assets and liabilities subject to netting agreements.

The Bank also elected not to offset certain derivative assets or liabilities and all collateral received or paid that the Bank or the counterparties could legally offset in the event of default. In the tables below, these positions are deducted from the net fair value presented in the consolidated balance sheets in order to present the net exposures. The collateral values presented in the following table are limited to the related net derivative asset or liability balance and, accordingly, do not include excess collateral received or paid.

Gross fair<br> value<br> recognized Less: offset<br> applied<br> under master<br> netting<br> agreements Net fair value<br>presented in the<br> consolidated<br> balance sheets Less: positions not offset in the consolidated balance sheets
September 30, 2025 Gross fair value of derivatives Cash collateral<br> received / paid Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps 12,785 (3,252) 9,533 9,533
Derivative liabilities
Spot and forward foreign exchange and currency swaps 4,357 (3,252) 1,105 1,105
Net positive fair value 8,428
Gross fair<br> value<br> recognized Less: offset<br> applied<br> under master<br> netting<br> agreements Net fair value<br>presented in the<br> consolidated<br> balance sheets Less: positions not offset in the consolidated balance sheets
December 31, 2024 Gross fair value of derivatives Cash collateral<br> received / paid Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps 46,705 (11,227) 35,478 (250) 35,228
Derivative liabilities
Spot and forward foreign exchange and currency swaps 13,266 (11,227) 2,039 (682) 1,357
Net positive fair value 33,439

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The following tables show the location and amount of gains (losses) recorded in either the consolidated statements of operations or consolidated statements of comprehensive income on derivative instruments outstanding.

Three months ended Nine months ended
Derivative instrument Consolidated statements of operations line item September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Spot and forward foreign exchange Foreign exchange revenue 79 83 80 72
Currency swaps, not designated as hedge Foreign exchange revenue 30,350 (27,642) (29,013) (3,951)
Currency swaps - fair value hedges Foreign exchange revenue (4,223) 5,243 5,311 (231)
Total net gains (losses) recognized in net income 26,206 (22,316) (23,622) (4,110)
Three months ended Nine months ended
Derivative instrument Consolidated statements of comprehensive income line item September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Currency swaps - net investment hedge Unrealized net gains (losses) on translation of net investment in foreign operations 251 (6,442) (1,389) (6,251)
Total net gains (losses) recognized in comprehensive income 251 (6,442) (1,389) (6,251)

Note 14: Fair value measurements

The following table presents the financial assets and liabilities that are measured at fair value on a recurring basis. Management classifies these items based on the type of inputs used in their respective fair value determination as described in Note 2 of the Bank's audited financial statements for the year ended December 31, 2024.

Management reviews the price of each security monthly, comparing market values to expectations and to the prior month’s price. Management's expectations are based upon knowledge of prevailing market conditions and developments relating to specific issuers and/or asset classes held in the investment portfolio. Where there are unusual or significant price movements, or where a certain asset class has performed out-of-line with expectations, the matter is reviewed by management.

Financial instruments in Level 1 include US and UK Government Treasury notes.

Financial instruments in Level 2 include government debt securities, mortgage-backed securities, other asset-backed securities, forward foreign exchange contracts and securities sold under agreements to repurchase.

There were no Level 3 investments as at September 30, 2025 and December 31, 2024.

There were no transfers between Level 1 and Level 2 or Level 2 and Level 3 during the nine months ended September 30, 2025 and the year ended December 31, 2024.

September 30, 2025 December 31, 2024
Fair value Total carrying<br>amount / <br>fair value Fair value Total carrying<br>amount / <br>fair value
Level 1 Level 2 Level 1 Level 2
Items that are recognized at fair value on a recurring basis:
Available-for-sale investments
US government and federal agencies 1,277,899 1,327,707 2,605,606 991,357 1,172,262 2,163,619
Non-US governments debt securities 93,468 93,468
Asset-backed securities - Student loans 40 40
Residential mortgage-backed securities 14,143 14,143 15,359 15,359
Total available-for-sale 1,277,899 1,341,850 2,619,749 1,084,825 1,187,661 2,272,486
Other assets - Derivatives 9,533 9,533 35,478 35,478
Financial liabilities
Other liabilities - Derivatives 1,105 1,105 2,039 2,039

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Items Other Than Those Recognized at Fair Value on a Recurring Basis:
September 30, 2025 December 31, 2024
Level Carrying<br>amount Fair<br> value Appreciation /<br>(depreciation) Carrying<br>amount Fair<br> value Appreciation /<br>(depreciation)
Financial assets
Cash and cash equivalents Level 1 1,501,368 1,501,368 1,998,112 1,998,112
Securities purchased under agreements to resell Level 2 1,155,950 1,155,950 1,205,373 1,205,373
Short-term investments Level 1 830,761 830,761 580,026 580,026
Investments held-to-maturity Level 2 3,055,181 2,605,627 (449,554) 3,240,290 2,671,040 (569,250)
Loans, net of allowance for credit losses Level 2 4,467,645 4,452,883 (14,762) 4,473,591 4,433,872 (39,719)
Financial liabilities
Term deposits Level 2 3,947,709 3,951,844 (4,135) 4,478,257 4,482,978 (4,721)
Securities sold under agreements to repurchase Level 2 92,562 92,562
Long-term debt Level 2 98,725 98,361 364

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 15: Interest rate risk

The following tables set out the assets, liabilities and shareholders' equity on the date of the earlier of contractual maturity, expected maturity or repricing date. Use of these tables to derive information about the Bank’s interest rate risk position is limited by the fact that customers may choose to terminate their financial instruments at a date earlier than the contractual maturity or repricing date. Examples of this include fixed-rate mortgages, which are shown at contractual maturity but which may be subject to early prepayment, and certain term deposits, which are shown at contractual maturity but which may be withdrawn before their contractual maturity subject to prepayment penalties. Investments are shown based on remaining contractual maturities. The remaining contractual principal maturities for mortgage-backed securities (primarily US government agencies) do not consider prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature.

September 30, 2025 Earlier of contractual maturity or repricing date
(in $ millions) Within 3<br> months 3 to 6<br> months 6 to 12<br> months 1 to 5<br> years After<br> 5 years Non-interest<br> bearing funds Total
Assets
Cash and cash equivalents 1,396 105 1,501
Securities purchased under agreements to resell 451 252 453 1,156
Short-term investments 363 323 145 831
Investments 1 82 372 933 4,287 5,675
Loans 2,466 202 211 1,252 270 67 4,468
Other assets 455 455
Total assets 4,677 859 1,181 2,185 4,557 627 14,086
Liabilities and shareholders' equity
Shareholders’ equity 1,106 1,106
Demand deposits 6,191 2,582 8,773
Term deposits 3,037 482 381 48 3,948
Other liabilities 259 259
Total liabilities and shareholders' equity 9,228 482 381 48 3,947 14,086
Interest rate sensitivity gap (4,551) 377 800 2,137 4,557 (3,320)
Cumulative interest rate sensitivity gap (4,551) (4,174) (3,374) (1,237) 3,320
December 31, 2024 Earlier of contractual maturity or repricing date
(in $ millions) Within 3<br> months 3 to 6<br> months 6 to 12<br> months 1 to 5<br> years After<br> 5 years Non-interest<br> bearing funds Total
Assets
Cash and cash equivalents 1,905 93 1,998
Securities purchased under agreements to resell 1,142 63 1,205
Short-term investments 505 75 580
Investments 93 6 22 1,097 4,294 5,512
Loans 2,398 104 229 1,407 283 53 4,474
Other assets 462 462
Total assets 6,043 248 251 2,504 4,577 608 14,231
Liabilities and shareholders' equity
Shareholders’ equity 1,021 1,021
Demand deposits 5,580 2,688 8,268
Term deposits 3,593 434 368 83 4,478
Securities sold under agreements to repurchase 93 93
Other liabilities 273 273
Long-term debt 98 98
Total liabilities and shareholders' equity 9,266 532 368 83 3,982 14,231
Interest rate sensitivity gap (3,223) (284) (117) 2,421 4,577 (3,374)
Cumulative interest rate sensitivity gap (3,223) (3,507) (3,624) (1,203) 3,374

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 16: Long-term debt

On June 11, 2020, the Bank issued US $100 million of Subordinated Lower Tier II capital notes. The notes were issued at par and due on June 15, 2030. The issuance was by way of a registered offering with US institutional investors. The notes were listed on the BSX in the specialist debt securities category. The proceeds of the issue were used, among others, to repay the entire amount of the US $45 million outstanding subordinated notes Series 2005-B which matured on July 2, 2020. The notes issued paid a fixed coupon of 5.25% until June 15, 2025 when they became redeemable in whole at the option of the Bank. The notes were priced at a spread of 4.43% over the 10-year US Treasury yield. The Bank incurred $2.3 million of costs directly related to the issuance of these capital notes which were capitalized directly against the carrying value of these notes on the balance sheet and amortized over the life of the notes. These notes were redeemed at face value in June 2025 at which time, unamortized issuance costs were fully recognized in the Consolidated Statements of Operations as part of interest expense.

No interest was capitalized during the nine months ended September 30, 2025, and the year ended December 31, 2024.

Note 17: Earnings per share

Earnings per share have been calculated using the weighted average number of common shares outstanding during the period after deduction of the shares held as treasury stock. The dilutive effect of share-based compensation plans was calculated using the treasury stock method, whereby the proceeds received from the exercise of share-based awards are assumed to be used to repurchase outstanding shares, using the average market price of the Bank’s shares for the period. Numbers of shares are expressed in thousands.

During the nine months ended September 30, 2025, the average number of outstanding awards of unvested common shares was 1.8 million (September 30, 2024: 1.6 million). Only awards for which the sum of 1) the expense that will be recognized in the future (i.e., the unrecognized expense) and 2) its exercise price, if any, was lower than the average market price of the Bank‘s common shares were considered dilutive and, therefore, included in the computation of diluted earnings per share.

An award's unrecognized expense is also considered to be the proceeds the employees would need to pay to purchase accelerated vesting of the awards. For the purposes of calculating dilution, such proceeds are assumed to be used by the Bank to buy back common shares at the average market price. The weighted-average number of outstanding awards, net of the assumed weighted-average number of common shares bought back, is included in the number of diluted participating shares.

Three months ended Nine months ended
September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Net income 61,062 52,716 168,151 156,738
Basic Earnings Per Share
Weighted average number of common shares issued 41,435 45,288 42,290 46,218
Weighted average number of common shares held as treasury stock (619) (619) (619) (619)
Weighted average number of common shares (in thousands) 40,816 44,669 41,671 45,599
Basic Earnings Per Share 1.50 1.18 4.04 3.44
Diluted Earnings Per Share
Weighted average number of common shares 40,816 44,669 41,671 45,599
Net dilution impact related to awards of unvested common shares 1,128 888 1,066 743
Weighted average number of diluted common shares (in thousands) 41,944 45,557 42,737 46,342
Diluted Earnings Per Share 1.46 1.16 3.93 3.38

Note 18: Share-based payments

The common shares transferred to employees under all share-based payments are either taken from the Bank's common treasury shares or from newly issued shares. All share-based payments are settled by the ultimate parent company which, pursuant to Bermuda law, is not taxed on income. There are no income tax benefits in relation to the issue of such shares as a form of compensation.

In May 2020, the Board of Directors approved the 2020 Omnibus Plan (the "2020 Plan"). Under the 2020 Plan, 3.0 million shares are initially available for grant to employees in the form of stock options or unvested share awards. In February 2025, the Board of Directors approved the Amended and Restated 2020 Omnibus Share Incentive Plan with 5.0 million additional shares available for grant to employees in the form of stock options or unvested share awards. Both types of awards are detailed below.

Stock Option Awards

2020 Plans

Under the 2020 Plan, options can be awarded to Bank employees and executive management, based on predetermined vesting conditions that entitle the holder to purchase one common share at a subscription price no less than the price of the most recently traded common share when granted and have a maximum term of 10 years.

There were no stock options outstanding as at September 30, 2025 and December 31, 2024.

Share-Based Incentive Programs

Recipients of unvested share awards are entitled to the related common shares at no cost, at the time the award vests. Recipients of unvested shares may be entitled to receive additional unvested shares having a value equal to the cash dividends that would have been paid had the unvested shares been issued and vested. Such additional unvested shares granted as dividend equivalents are subject to the same vesting schedule and conditions as the underlying unvested shares.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Unvested shares subject only to the time vesting condition generally vest upon retirement, death, disability or upon termination, by the Bank, of the holder’s employment unless if in connection with the holder’s misconduct. Unvested shares subject to both time vesting and performance vesting conditions remain outstanding and unvested upon retirement and will vest only if the performance conditions are met. Unvested shares can also vest in limited circumstances and if specifically approved by the Board, as stipulated in the holder’s employment contract. In all other circumstances, unvested shares are generally forfeited when employment ends.

The grant date weighted average fair value (which equals the actual trading price prevailing on grant date) of unvested share awards granted in the nine months ended September 30, 2025 was $37.50 per share (December 31, 2024: $30.11 per share). The Bank expects to settle these awards by issuing new shares.

Employee Deferred Incentive Program

Under the Bank’s EDIP, shares are awarded to Bank employees and executive management based on the time vesting condition, which states that the shares will vest equally over a three-year period from the effective grant date.

Employee Long-Term Incentive Share Program

Under the Bank’s ELTIP, performance shares as well as time-vesting shares were awarded to employees and executive management. The performance shares will generally vest upon the achievement of certain performance targets in the three-year period from the effective grant date. The time-vesting shares will generally vest over the three-year period from the effective grant date.

Employee Share Purchase Plan

The Bank's ESPP was approved in July 2021 and registered in November 2021. The first offering period started in May 2022. Under the Bank's ESPP, eligible employees may elect to contribute up to 15% of their regular compensation toward the purchase of the Bank's shares at a 10% discount from market price on the closing date of each offering period. The ESPP specifies two consecutive six month offering periods per year. In the case of termination of employment or voluntary partial or full withdrawal from the plan, the related current offering period ESPP contributions are refunded to the employee and thus cannot be used to purchase shares under the ESPP. During the nine months ended September 30, 2025, 7,186 shares (December 31, 2024: 16,762 shares) were issued under the ESPP.

Changes in Outstanding ELTIP and EDIP awards (in thousands of shares transferable upon vesting)
Nine months ended
September 30, 2025 September 30, 2024
EDIP ELTIP EDIP ELTIP
Outstanding at beginning of period 628 1,151 665 915
Granted 130 348 98 558
Vested (fair value in 2025: $22.1 million, 2024: $14.2 million, ) (263) (268) (139) (334)
Forfeitures (resignations, retirements, redundancies) (2) (3) (2)
Outstanding at end of period 495 1,229 621 1,137
Share-based Compensation Cost Recognized in the Financial Statements
--- --- ---
Nine months ended
September 30, 2025 September 30, 2024
EDIP and ELTIP 16,275 15,285
ESPP 292 305
Share-based Compensation Cost Recognized in Net Income 16,567 15,590
Deduct: Fair value of awards withheld for employees' payroll tax purposes (211) (119)
Share-based Compensation Cost Recognized in Additional Paid-in Capital 16,356 15,471
Unrecognized Share-based Compensation Cost
--- --- --- --- ---
September 30, 2025 December 31, 2024
Unrecognized cost Weighted average years over which it is expected to be recognized Unrecognized cost Weighted average years over which it is expected to be recognized
EDIP 8,080 1.68 8,829 1.88
ELTIP
Time vesting shares 23 0.37 66 1.12
Performance vesting shares 18,315 1.80 15,877 1.79
Total unrecognized expense 26,418 24,772

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 19: Share repurchase programs

From time to time, the Bank may seek to repurchase and retire equity securities of the Bank, through cash purchase, privately negotiated transactions, or otherwise. Such transactions, if any, depend on prevailing market conditions, liquidity and capital requirements, contractual restrictions, and other factors.

Common Share Repurchase Program

On February 14, 2022, the Board approved a new common share repurchase program, authorizing the purchase of up to 2.0 million common shares through to February 28, 2023.

On February 13, 2023, the Board approved a new common share repurchase program, authorizing the purchase of up to 3.0 million common shares through to February 29, 2024.

On December 5, 2023, the Board approved a new common share repurchase program, authorizing the purchase of up to 3.5 million common shares through to December 31, 2024.

On July 22, 2024, the Board approved a new common share repurchase program, authorizing the purchase of up to 2.1 million common shares through to December 31, 2024.

On December 9, 2024, the Board approved a new common share repurchase program, authorizing the purchase of up to 2.7 million common shares through to December 31,

2025.

On July 28, 2025, the Board approved a new common share repurchase program, authorizing the purchase of up to 1.5  million common shares through to December 31, 2025.

In the nine months ended September 30, 2025, the Bank repurchased and retired 2,880,140 shares.

Nine months ended Year ended December 31
Common share repurchases September 30, 2025 2024 2023
Acquired number of shares (to the nearest 1) 2,880,140 4,490,940 3,133,717
Average cost per common share 40.67 34.58 28.27
Total cost (in US dollars) 117,132,449 155,305,756 88,590,240

Note 20: Accumulated other comprehensive income (loss)

Unrealized net gains (losses)<br> on translation of<br> net investment in<br> foreign<br> operations Unrealized net<br> gains (losses)<br> on HTM<br> investments Unrealized net<br> gains (losses)<br> on AFS<br> investments Employee benefit plans adjustments
Nine months ended September 30, 2025 Pension Post-retirement<br> healthcare Subtotal -<br> employee<br>benefits plans Total AOCIL
Balance at beginning of period (26,191) (73,919) (162,275) (49,282) 16,252 (33,030) (295,415)
Other comprehensive income (loss), net of taxes 5,838 5,896 61,847 1,299 (59) 1,240 74,821
Balance at end of period (20,353) (68,023) (100,428) (47,983) 16,193 (31,790) (220,594)
Unrealized net gains (losses)<br> on translation of<br> net investment in<br> foreign<br> operations Unrealized net<br> gains (losses)<br> on HTM<br> investments Unrealized net<br> gains (losses)<br> on AFS<br> investments Employee benefit plans adjustments
Nine months ended September 30, 2024 Pension Post- retirement<br> healthcare Subtotal -<br> employee<br>benefits plans Total AOCIL
Balance at beginning of period (25,478) (82,067) (162,910) (51,563) 11,820 (39,743) (310,198)
Other comprehensive income (loss), net of taxes 1,945 6,206 46,827 2,571 (1,341) 1,230 56,208
Balance at end of period (23,533) (75,861) (116,083) (48,992) 10,479 (38,513) (253,990)

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Net Change of AOCIL Components Three months ended Nine months ended
Line item in the consolidated<br>statements of operations, if any September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Net unrealized gains (losses) on translation of net investment in foreign operations adjustments
Foreign currency translation adjustments N/A (8,533) 25,571 32,268 21,587
Gains (losses) on net investment hedge N/A 8,111 (23,514) (26,430) (19,642)
Net change (422) 2,057 5,838 1,945
Held-to-maturity investment adjustments
Amortization of net gains (losses) to net income Interest income on investments 2,137 2,007 5,896 6,206
Net change 2,137 2,007 5,896 6,206
Available-for-sale investment adjustments
Gross unrealized gains (losses) N/A 17,956 61,462 64,093 48,424
Foreign currency translation adjustments of related balances N/A 529 (1,796) (2,246) (1,597)
Net change 18,485 59,666 61,847 46,827
Employee benefit plans adjustments
Defined benefit pension plan
Net actuarial gain (loss) N/A 1,029
Amortization of net actuarial (gains) losses Non-service employee benefits expense 586 591 1,756 1,769
Amortization of prior service (credit) cost Non-service employee benefits expense 20 21 61 60
Foreign currency translation adjustments of related balances N/A 150 (339) (518) (287)
Net change 756 273 1,299 2,571
Post-retirement healthcare plan
Amortization of net actuarial (gains) losses Non-service employee benefits expense 131 131 393 393
Amortization of prior service (credit) cost Non-service employee benefits expense (151) (578) (452) (1,734)
Net change (20) (447) (59) (1,341)
Other comprehensive income (loss), net of taxes 20,936 63,556 74,821 56,208

Note 21: Capital structure

Authorized Capital

The par value of each issued common share and each authorized but unissued common share is BM$0.01 and the authorized share capital of the Bank comprises 2,000,000,000 common shares of par value BM$0.01 each, 6,000,000,000 non‑voting ordinary shares of par value BM$0.01 each, 110,200,001 preference shares of par value US$0.01 each and 50,000,000 preference shares of par value £0.01 each.

Dividends Declared

During the nine months ended September 30, 2025, the Bank declared and paid cash dividends of $1.38 (September 30, 2024: $1.32) for each common share as of the related record dates. On October 28, 2025, the Board of Directors declared an interim dividend of $0.50 per common share to be paid on November 25, 2025 to shareholders of record on November 11, 2025.

The Bank is required to comply with Section 54 of the Companies Act 1981 issued by the Government of Bermuda (the “Companies Act”) each time a dividend is declared or paid by the Bank and also obtain a letter of no objection from the BMA pursuant to the Banks and Deposit Companies Act 1999 for any dividends declared. The Bank has complied with Section 54 and has obtained the BMA's letter of no objection for all dividends declared during the periods presented.

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Regulatory Capital

Effective January 1, 2025, the Bank has adopted the Basel Committee on Banking Supervision's revised standardized approach for credit risk framework as required by the BMA. Comparatives were prepared under the prior credit risk framework.

The Bank’s regulatory capital is determined in accordance with current Basel guidelines as issued by the BMA. The Bank is fully compliant with all regulatory capital requirements to which it is subject, and it maintains capital ratios in excess of regulatory minimums as at September 30, 2025 and December 31, 2024. The following table sets forth the Bank's capital adequacy in accordance with the relevant Basel framework:

September 30, 2025 December 31, 2024
Actual Regulatory minimum Actual Regulatory minimum
Capital
CET 1 capital 1,078,048 N/A 1,066,058 N/A
Tier 1 capital 1,078,048 N/A 1,066,058 N/A
Tier 2 capital 6,223 N/A 107,061 N/A
Total capital 1,084,271 N/A 1,173,119 N/A
Risk Weighted Assets 4,013,895 N/A 4,539,376 N/A
Leverage Ratio Exposure Measure 14,464,850 N/A 14,679,662 N/A
Capital Ratios (%)
CET 1 capital 26.9 % 10.0 % 23.5 % 10.0 %
Tier 1 capital 26.9 % 11.5 % 23.5 % 11.5 %
Total capital 27.0 % 13.5 % 25.8 % 13.5 %
Leverage ratio 7.5 % 5.0 % 7.3 % 5.0 %

Note 22: Related party transactions

Financing Transactions

Certain directors and executives of the Bank, companies in which they are principal owners and/or members of the board, and trusts in which they are involved, have deposits with the Bank, have loans and/or are guarantors for loans with the Bank. Loans to directors were made in the ordinary course of business at normal credit terms, including interest rate and collateral requirements. Loans to executives may be eligible for preferential rates. All of these loans were considered performing loans as at September 30, 2025 and December 31, 2024. Loan balances with directors and executives of the Bank, companies in which they are principal owners and/or members of the board, and trusts in which they are involved were as follows:

Balance at December 31, 2023 19,735
Net loans issued (repaid) during the year (1,081)
Effect of changes in the composition of related parties 983
Balance at December 31, 2024 19,637
Net loans issued (repaid) during period (288)
Effect of changes in the composition of related parties (15,163)
Balance at September 30, 2025 4,186
Consolidated balance sheets September 30, 2025 December 31, 2024
--- --- ---
Deposits 55,846 92,182
Three months ended Nine months ended
--- --- --- --- ---
Consolidated statement of operations September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Interest and fees on loans 190 326 777 958
Total non-interest expense 81 33 295 149
Other non-interest income 43 58 196 182

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Certain affiliates of the Bank have loans and deposits with the Bank which were made and are maintained in the ordinary course of business on normal commercial terms. Balances with these parties were as follows:

Consolidated balance sheets September 30, 2025 December 31, 2024
Loans 8,791 9,056
Deposits 402 811
Accrued interest and other liabilities 160 167
Three months ended Nine months ended
--- --- --- --- ---
Consolidated statement of operations September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Interest and fees on loans 176 196 533 597
Total non-interest expense 987 329 1,426 1,148
Other non-interest income 63 61 188 184

Investments

As at September 30, 2025, several Butterfield mutual funds which are managed by a wholly owned subsidiary of the Bank, had loan balances and deposit balances held with the Bank. The Bank also earned asset management revenue and custody and other administration services revenue from funds managed by a wholly-owned subsidiary of the Bank and from directors and executives, companies in which they are principal owners and/or members of the board and trusts in which they are involved, as well as other income from other related parties.

Consolidated balance sheets September 30, 2025 December 31, 2024
Deposits 15,056 9,441
Accrued interest and other assets 368 Three months ended Nine months ended
--- --- --- --- ---
Consolidated statement of operations September 30, 2025 September 30, 2024 September 30, 2025 September 30, 2024
Asset management 3,080 2,846 8,853 8,103
Custody and other administration services 389 358 1,115 1,019
Other non-interest income 167 467

Note 23: Subsequent events

On October 28, 2025, the Board of Directors declared an interim dividend of $0.50 per common share to be paid on November 25, 2025 to shareholders of record on November 11, 2025.

35

q32025currentearningsdec

Third Quarter 2025 The Bank of N.T. Butterfield & Son Limited Earnings Presentation October 29, 2025


2 Forward-Looking Statements Forward-Looking Statements: Certain of the statements made in this release are forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations, anticipations, assumptions estimates, intentions, and future performance, including, without limitation, our intention to make share repurchases or otherwise increase shareholder value, our dividend payout target, our fee/income ratio, our OCI, our growth and expenses, and interest rate levels and impact on our earnings, and business activity levels, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause the actual results, performance, capital, ownership or achievements of Butterfield to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements due to a variety of factors, including worldwide economic conditions (including economic growth and general business conditions), changes in trade policies and practices and the resulting uncertainty, market volatility, and potential deterioration in economic conditions, fluctuations of interest rates, inflation, a decline in Bermuda’s sovereign credit rating, any sudden liquidity crisis, the successful completion and integration of acquisitions (including our integration of the trust assets acquired from Credit Suisse) or the realization of the anticipated benefits of such acquisitions in the expected time-frames or at all, success in business retention (including the retention of relationships associated with our Credit Suisse acquisition) and obtaining new business, potential impacts of climate change, the success of our updated systems and platforms and other factors. Forward-looking statements can be identified by words such as "anticipate," "assume," "believe," "estimate," "expect," "indicate," "intend," "may," "plan," "point to," "predict," "project," "seek," "target," "potential," "will," "would," "could," "should," "continue," "contemplate" and other similar expressions, although not all forward-looking statements contain these identifying words. All statements other than statements of historical fact are statements that could be forward-looking statements. All forward-looking statements in this disclosure are expressly qualified in their entirety by this cautionary notice, including, without limitation, those risks and uncertainties described in our SEC reports and filings, including under the caption "Risk Factors" in our most recent Form 20-F. Such reports are available upon request from Butterfield, or from the Securities and Exchange Commission ("SEC"), including through the SEC’s website at https://www.sec.gov. Any forward-looking statements made by Butterfield are current views as at the date they are made. Except as otherwise required by law, Butterfield assumes no obligation and does not undertake to review, update, revise or correct any of the forward- looking statements included in this disclosure, whether as a result of new information, future events or other developments. You are cautioned not to place undue reliance on the forward-looking statements made by Butterfield in this disclosure. Comparisons of results for current and any prior periods are not intended to express any future trends or indications of future performance, and should only be viewed as historical data. About Non-GAAP Financial Measures: This presentation contains non-GAAP financial measures including “core” net income and other financial measures presented on a “core” basis. We believe such measures provide useful information to investors that is supplementary to our financial condition, results of operations and cash flows computed in accordance with GAAP; however, our non-GAAP financial measures have a number of limitations. As such, investors should not view these disclosures as a substitute for results determined in accordance with GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use. Reconciliations of these non-GAAP measures to corresponding GAAP financial measures are provided in the Appendix of this presentation. Presentation of Financial Information: Certain monetary amounts, percentages and other figures included in this report have been subject to rounding adjustments. Accordingly, figures shown as totals in certain tables may not be the arithmetic aggregation of the figures that precede them, and figures expressed as percentages in the text may not total 100% or, as applicable, when aggregated may not be the arithmetic aggregation of the percentages that precede them.


3 Agenda and Overview Ten International Locations Butterfield Overview Michael Collins Chairman and Chief Executive Officer Michael Schrum President and Group Chief Financial Officer Jody Feldman Managing Director, Bermuda • Leading Bank in Attractive Markets • Strong Capital Generation and Return • Resilient, Capital Efficient, Diversified Fee Revenue Model • Efficient, Conservative Balance Sheet • Experienced Leadership Team • Overview • Third Quarter 2025 Financials • Q&A Presenters Agenda • Leading market positions in Bermuda & Cayman • Expanding retail offerings in The Channel Islands • Well-secured lending in all markets • Award winning banking and wealth management offerings Sustainability Awards


4 Third Quarter 2025 Highlights Net Income (In US$ millions) Return on Equity (In US$ millions) vs. Q2 2025 vs. Q3 2024 Q3 2025 $ % $ % Net Interest Income $ 92.7 $ 3.3 $ 4.7 Non-Interest Income 61.2 4.2 5.1 Provision for Credit Losses (0.6) (0.4) 0.8 Non-Interest Expenses* (92.2) 0.7 (2.2) Other Gains (Losses) (0.1) (0.1) — Net Income $ 61.1 $ 7.7 14.5 % $ 8.3 15.8 % Non-Core Items** 2.2 (1.9) 2.1 Core Net Income** $ 63.3 $ 9.6 17.9 % $ 10.5 19.8 % • Net income of $61.1 million or $1.46 per share • Core net income**of $63.3 million, or $1.51 per share • Return on average common equity of 22.5%; core return on average tangible common equity** of 25.5% • Net Interest Margin of 2.73%, cost of deposits of 1.47% • Quarterly cash dividend of $0.50 per common share • Repurchases of 0.7 million shares at a total cost of $30.3 million * Includes income taxes ** See the Appendix for a reconciliation of the non-GAAP measure $52.7 $59.6 $53.8 $53.3 $61.1 $52.8 $59.6 $56.7 $53.7 $63.3 Net income Core Net Income** Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 20.3% 22.9% 20.9% 20.3% 22.5%22.5% 25.2% 24.2% 22.3% 25.5% Return on Equity Core Return on Average Tangible Common Equity** Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025


Financials


6 Net Interest Income before Provision for Credit Losses -Trend (In US$ millions) $88.1 $89.4 $92.7 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Net Interest Margin & Yields Income Statement Net Interest Income • Net interest income (“NII”) increased over the prior quarter driven by lower cost of deposits and repayment of subordinated debt in the prior quarter, partially offset by lower loan and treasury yields • Net interest margin (“NIM”) was higher at 2.73% compared to 2.64% in the prior quarter, primarily due to lower cost of deposits and the redemption of subordinated debt in the previous quarter • Average treasury balances were lower compared to the prior quarter due to portfolio maturities and limited re- investments during the quarter • Average loan volumes continued to decrease as amortizations and paydowns outpaced originations (In US$ millions) Q3 2025 vs Q2 2025 Avg. Balance Yield Avg. Balance Yield Cash, S/T Inv. & Repos $ 3,474.7 3.64 % $ (159.6) (0.07) % Investments 5,526.0 2.67 % 74.1 — % Loans (net) 4,470.9 6.24 % (46.8) (0.07) % Interest Earning Assets 13,471.6 4.11 % (132.3) (0.04) % Interest Bearing Liabilities 10,017.1 (1.85) % (113.7) 0.19 % Net Interest Margin 2.73 % 0.09 %


7 Non-Interest Income Trend (In US$ millions)(In US$ millions) Q3 2025 vs. Q2 2025 Asset management $ 9.9 $ 0.5 Banking 17.8 3.1 Foreign exchange revenue 13.2 1.3 Trust 16.2 (0.1) Custody and other 3.1 — Other 0.8 (0.6) Total Non-Interest Income $ 61.2 $ 4.2 $56.0 $57.0 $61.2 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 • Total non-interest income was up $4.2 million versus the prior quarter, primarily due to: ◦ higher banking fees due to increased card volumes and incentive programs; and ◦ an increase in foreign exchange revenue driven by increased volumes. • The fee income ratio was 39.9% in the third quarter of 2025 which compares favorably to historical peer* averages Income Statement Non-Interest Income * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks.


8 Core Non-Interest Expense* Trend (In US$ millions) Core Non-Interest Expenses* vs. Q2 2025 (In US$ millions) Q3 2025 $ % Salaries & Benefits** $ 45.8 $ (0.6) (1.3) % Technology & Comm. 16.0 (0.3) (1.5) % Professional & O/S Services 4.9 (0.2) (3.9) % Property 8.2 (0.6) (6.7) % Indirect Taxes 5.4 (0.5) (7.9) % Marketing 1.4 (0.3) (18.1) % Intangible Amortization 2.0 — (0.4) % Other 4.8 (0.5) (8.7) % Total Core Non-Interest Expenses* $ 88.5 $ (2.8) (3.1) % Non-Core Expenses* 2.2 1.9 >100% Non-Interest Expenses $ 90.8 $ (1.0) (1.1) % $88.6 $91.4 $88.5 60.2% 61.1% 56.2% Core Efficiency Ratio* Core Non-Interest Expenses* Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 • Core non-interest expenses* were lower compared to the prior quarter with the following underlying movements: ◦ lower core salaries and other employee benefits primarily due to a reduction in performance-based incentive accruals and lower headcount offset by senior management departure costs; ◦ decrease in property expenses due to lower rent and leasehold depreciation from a premises consolidation in the Channel Islands; and ◦ lower indirect taxes due to lower payroll taxes and work permit fees. • Core efficiency ratio* of 56.2% decreased compared to the prior quarter and was favorable to the Bank’s through-cycle core efficiency ratio target of 60% * See the Appendix for a reconciliation of the non-GAAP measure ** Includes Non-Service Employee Benefits Expense Income Statement Non-Interest Expenses


9 Balance Sheet Total Assets (In US$ billions) • Period end deposit balances decreased by slightly to $12.7 billion compared to prior year end • Average deposit balances decreased slightly to $12.6 billion in Q3 2025 compared to the prior year end • Butterfield’s balance sheet remained low in risk density (risk weighted assets/total assets) at 28.5% vs Q4 2024 (In US$ millions) Q3 2025 Q4 2024 % Cash and cash equivalents $ 1,501 $ 1,998 (25) % Reverse Repos & S/T Investments 1,987 1,785 11 % Investments 5,675 5,513 3 % Loans (net) 4,468 4,474 — % Other Assets 456 462 (1) % Total Assets $ 14,086 $ 14,231 (1) % Int. Bearing Deposits $ 10,139 $ 10,058 1 % Non-Int. Bearing Deposits 2,582 2,688 (4) % Other Liabilities 259 465 (44) % Shareholders’ Equity 1,106 1,021 8 % Total Liab. & Equity $ 14,086 $ 14,231 (1) % $14.4 $14.2 $14.1 $5.5 $5.5 $5.7 $4.6 $4.6 $4.5 Total assets Investments Loans Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 $12.7 $12.8 $12.7 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Total Deposits (In US$ billions)


10 Asset Quality Non-Accrual Loans (In US$ millions) $89.6 $93.3 $91.7 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Res Mtg 70.1% Consumer 4.2% Comm’l R/E 12.7% Other Comm’l 6.3% Government 6.7% Loan Distribution 0.03% 0.00% 0.01% Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 0.00% 0.05% 0.10% 0.15% 0.20% Net Charge-Off Ratio $4.5 billion $5.7 billion Investment Portfolio Rating Distribution • 70% of the total loan portfolio consists of full-recourse residential mortgages of which 79% have loans-to-values below 70% • Non-accrual loans were relatively flat for the quarter at 2.0% • Allowance for credit losses at $25.7 million represented an ACL/Total loans ratio of 0.6%, consistent with the prior quarter • The net charge-off ratio remained at a negligible level as a % of total gross loans AAA 0.3% AA 99.8%


11 Interest Rate Sensitivity Interest Rate SensitivityAverage Balance - Balance Sheet Average Balances (US$Mil) Weighted Average Life Q3 2025 vs. Q2 2025 Duration vs. Q2 2025 Cash & Reverse Repos & S/T Invest. $ 3,474.7 $ (159.6) 0.1 — N/A AFS 2,430.1 137.5 3.0 (0.1) 3.6 HTM** 3,095.9 (63.5) 7.0 (0.1) 8.1 Total $ 9,000.7 $ (85.6) (4.3)% 2.5% 5.1% (1.5)% 1.6% 2.9% NTB US Peer Median * -100bps +100bps +200bps • Total investment portfolio duration decreased to 5.0 years compared to the prior quarter • Interest rate sensitivity has reduced against the prior quarter driven by a reduction in short term investments that were deployed into the fixed rate investment portfolio • Net unrealized losses on AFS securities improved to $101.5 million as at September 30, 2025 compared with net unrealized losses of $120.0 million as at the end of the second quarter of 2025 • Based on implied forward rates, the AFS OCI expected to improve by 31% in the next 12 months and a cumulative 37% in 24 months * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. Q2 2025 comparative data is used as Q3 2025 peer information was not widely available at time of publication. ** The HTM portfolio is comprised of securities with negative convexity which typically exhibit lower prepayment speeds when assuming higher future rates.


12 Capital Requirements and Dividend Return Leverage Capital • Regulatory capital levels remain conservatively above minimum requirements • Quarterly dividend rate of $0.50 per common share • TCE/TA ratio of 7.3%, conservatively above the targeted range of 6.0% to 6.5% • Tangible book value per share increased by 5.4% compared to the prior quarter at $25.06 • New Basel 4 rules effective on January 1, 2025 resulted in lower risk weighted assets and improved the regulatory capital ratio by 1.9% Regulatory Capital - Total Capital Ratio* 27.0% 13.5% 15.5% Butterfield Current BMA Minimum US Peer Median*** *** Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. Q2 2025 comparative data is used as Q3 2025 peer information was not widely available at time of publication. 8.1% 12.2% 7.3% 11.6% 0.8% 0.7% TCE/TA TCE/TA Ex Cash Butterfield - Current US Peer Median*** $87.3 $86.2 $79.9 $57.6 $3.9 $88.6 $155.3 $117.1 Combined Payout Ratio Share Repurchases Cash Dividend 2022 2023 2024 Q3 2025 Combined Payout Ratio * Effective January 1, 2025, the Bank has adopted the BCBS’s revised standardized approach for credit risk framework as required by the BMA. ** 2025 is based on year-to-date cash dividends, share repurchases and net income 43% 78% 109% 104% **


Appendix


14 Group (US$ Billions) Bermuda (US$ Billions) Deposit Composition by Segment Cayman (US$ Billions) Channel Islands (US$ Billions) 19% 21% 20% 20% 20% 47% 44% 49% 49% 49% 34% 35% 31% 31% 31% $12.7 $12.7 $12.6 $12.8 $12.7 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 22% 27% 25% 24% 24% 45% 44% 47% 50% 50% 33% 30% 28% 26% 26% $3.8 $4.0 $3.9 $4.0 $3.8 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 34% 33% 35% 36% 35% 46% 40% 45% 44% 46% 19% 26% 20% 20% 19% $4.6 $4.8 $4.5 $4.5 $4.8 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 1% 1% 1% 1% 1% 49% 48% 54% 52% 49% 50% 51% 45% 48% 50% $4.4 $4.0 $4.2 $4.3 $4.2 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025


15 29% 29% 29% 28% 27% 21% 23% 22% 21% 19% 50% 49% 49% 50% 54% $3.6 $3.6 $3.3 $3.1 $3.2 Bermuda Cayman UK and Channel Islands 2021 2022 2023 2024 Q3 2025 26% 24% 21% 23% 19% 7% 9% 9% 10% 6% 18% 21% 22% 22% 26% 48% 46% 48% 46% 49% $1.4 $1.4 $1.3 $1.3 $1.2 Commercial and Industrial Commercial Overdrafts Government Commercial Real Estate 2021 2022 2023 2024 Q3 2025 Residential Mortgage Loans (US$ Billions) Commercial Loans (US$ Billions) Loans 39% 37% 37% 34% 33% 20% 24% 25% 24% 23% 41% 39% 38% 42% 44% $5.2 $5.1 $4.7 $4.5 $4.5 Bermuda Cayman UK and Channel Islands 2021 2022 2023 2024 Q3 2025 Loan Portfolio Composition by Originating Segment (US$ Billions) 19% 43% 51% 47% 44% 81% 57% 49% 53% 56% $5.2 $5.1 $4.7 $4.5 $4.5 Fixed Floating 2021 2022 2023 2024 Q3 2025 Fixed vs. Floating Rate Loans (US$ Billions)


16 Balance Sheet Movements Deposit Composition by Currency (US$ billions)Deposit Movements (US$ millions) $-120 $-25 Change vs Q2 2025 Change vs Q4 2024 Loan Movements (US$ millions) Loan Composition by Currency (US$ billions) -55 -65 $-110 $-5 Change vs Q2 2025 Change vs Q4 2024 Volume FX Translation 72% 70% 71% 21% 24% 23% 8% 6% 6% $12.7 $12.8 $12.7 USD / USD Pegged GBP Other Total deposits Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 59% 57% 58% 40% 43% 42% 1% —% —% $4.6 $4.6 $4.5 USD / USD Pegged GBP Other Total loans Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 -70 -40 -325 +300 -140 +135


17 Loan-to-Deposit Ratio Balance Sheet Asset Mix Liquidity: Cash & Cash Equivalents** to Total Assets 37% 35% 36% 36% 35% 70% 71% 71% 71% NTB US Peer Median* Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 27% 27% 26% 26% 25% 5% 4% 5% 5% NTB US Peer Median* Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 • Butterfield takes a conservative approach to managing the liquidity and funding risk profile of its balance sheet. This involves the retention of a significant liquidity holding of cash or cash equivalent balances, comprised of interbank deposits and short-dated sovereign Canadian, UK and US Treasury Bills, as well as maintaining significant liquidity facilities with correspondent banks • Butterfield also maintains capital, liquidity and funding buffers conservatively in excess of regulatory requirements * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. Q3 2025 peer information was not widely available at time of publication and therefore not included. ** Includes securities purchased under agreements to resell and short-term investments.


18 (in millions of US Dollars, unless otherwise indicated) 2025 2024 2023 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Assets Cash and cash equivalents $ 1,501 $ 1,450 $ 2,097 $ 1,998 $ 2,067 $ 2,390 $ 1,746 $ 1,647 $ 1,750 Reverse Repos & S/T Investments 1,987 2,247 1,498 1,785 1,750 1,289 1,480 1,225 893 Investments 5,675 5,458 5,448 5,513 5,468 5,168 5,168 5,292 5,319 Loans, Net 4,468 4,578 4,518 4,474 4,648 4,585 4,644 4,746 4,750 Other Assets 456 453 458 462 441 506 490 464 468 Total Assets $ 14,086 $ 14,185 $ 14,020 $ 14,231 $ 14,373 $ 13,939 $ 13,528 $ 13,374 $ 13,180 Liabilities and Equity Total Deposits $ 12,721 $ 12,838 $ 12,608 $ 12,746 $ 12,738 $ 12,548 $ 12,131 $ 11,987 $ 11,861 Long-Term Debt — — 99 99 99 99 99 98 98 Other Liabilities 259 278 256 366 472 293 304 285 297 Total Liabilities $ 12,980 $ 13,116 $ 12,962 $ 13,211 $ 13,309 $ 12,940 $ 12,533 $ 12,370 $ 12,257 Common Equity $ 1,106 $ 1,069 $ 1,058 $ 1,021 $ 1,064 $ 999 $ 995 $ 1,004 $ 923 Total Equity $ 1,106 $ 1,069 $ 1,058 $ 1,021 $ 1,064 $ 999 $ 995 $ 1,004 $ 923 Total Liabilities and Equity $ 14,086 $ 14,185 $ 14,020 $ 14,231 $ 14,373 $ 13,939 $ 13,528 $ 13,374 $ 13,180 Key Metrics CET 1 Ratio 26.9 % 26.0 % 25.2 % 23.5 % 22.1 % 22.5 % 22.6 % 23.0 % 23.4 % Total Tier 1 Capital Ratio 26.9 % 26.0 % 25.2 % 23.5 % 22.1 % 22.5 % 22.6 % 23.0 % 23.4 % Total Capital Ratio 27.0 % 26.2 % 27.7 % 25.8 % 24.3 % 24.8 % 24.9 % 25.4 % 25.8 % Leverage ratio 7.5 % 7.3 % 7.4 % 7.3 % 7.1 % 7.3 % 7.5 % 7.6 % 7.8 % Risk-Weighted Assets (in $ millions) 4,014 4,063 4,207 4,539 4,776 4,668 4,648 4,541 4,522 Risk-Weighted Assets / total assets 28.5 % 28.6 % 30.0 % 31.9 % 33.2 % 33.5 % 34.4 % 34.0 % 34.3 % Tangible common equity ratio 7.3 % 6.9 % 6.9 % 6.6 % 6.8 % 6.5 % 6.7 % 6.8 % 6.5 % Book value per common share (in $) 27.25 26.01 25.07 23.78 24.09 22.12 21.53 21.39 19.20 Tangible book value per share (in $) 25.06 23.77 22.94 21.70 21.90 20.03 19.45 19.29 17.73 Non-accrual loans/gross loans 2.0 % 2.0 % 2.3 % 1.7 % 1.9 % 1.5 % 1.3 % 1.3 % 1.2 % Non-performing assets/total assets 1.0 % 0.8 % 1.1 % 1.1 % 1.5 % 1.1 % 1.2 % 1.0 % 0.8 % Allowance for credit losses/total loans 0.6 % 0.6 % 0.6 % 0.6 % 0.6 % 0.5 % 0.5 % 0.5 % 0.5 % Balance Sheet Trends * Effective January 1, 2025, the Bank has adopted the BCBS's revised standardized approach for credit risk framework as required by the BMA. Comparatives were prepared under the prior credit risk framework.


19 (in millions of US Dollars, unless otherwise indicated) Q3 2025 Q2 2025 Q3 2024 Assets Average balance ($) Interest ($) Average rate (%) Average balance ($) Interest ($) Average rate (%) Average balance ($) Interest ($) Average rate (%) Cash and cash equivalents, reverse repurchase agreements and short-term investments $ 3,474.7 $ 31.9 3.64 % $ 3,634.3 $ 33.6 3.71 % $ 3,572.7 $ 42.0 4.66 % Investment in securities 5,526.0 37.2 2.67 % 5,452.0 36.2 2.67 % 5,239.2 31.5 2.39 % AFS 2,430.1 19.8 3.24 % 2,292.6 18.3 3.21 % 1,907.3 12.7 2.64 % HTM 3,095.9 17.4 2.23 % 3,159.4 17.9 2.27 % 3,331.9 18.9 2.24 % Loans 4,470.9 70.3 6.24 % 4,517.7 71.0 6.31 % 4,566.2 76.4 6.64 % Commercial 1,226.6 20.3 6.57 % 1,290.7 21.1 6.55 % 1,298.9 21.6 6.61 % Consumer 3,244.3 50.0 6.11 % 3,227.0 50.0 6.21 % 3,267.3 54.8 6.66 % Total interest earning assets 13,471.6 139.4 4.11 % 13,603.9 140.9 4.15 % 13,378.1 150.0 4.45 % Other assets 445.4 417.6 421.5 Total assets $ 13,917.0 $ 14,021.5 $ 13,799.6 Liabilities Deposits - interest bearing $ 10,017.1 $ (46.7) (1.85) % $ 10,051.2 $ (49.2) (1.96) % $ 9,805.8 $ (59.7) (2.41) % Securities sold under agreement to repurchase — — — % 1.9 — (5.94) % 81.9 (0.9) (4.30) % Long-term debt — — — % 77.7 (2.3) (11.92) % 98.6 (1.4) (5.52) % Interest bearing liabilities 10,017.1 (46.7) (1.85) % 10,130.8 (51.5) (2.04) % 9,986.3 (61.9) (2.46) % Non-interest bearing customer deposits 2,616.7 2,602.5 2,561.9 Other liabilities 231.2 253.4 249.6 Total liabilities $ 12,865.0 $ 12,986.7 $ 12,797.8 Shareholders’ equity 1,052.0 1,034.9 1,001.9 Total liabilities and shareholders’ equity $ 13,917.0 $ 14,021.5 $ 13,799.6 Non-interest bearing funds net of non- interest earning assets (free balance) $ 3,454.5 $ 3,473.2 $ 3,391.8 Net interest margin $ 92.7 2.73 % $ 89.4 2.64 % $ 88.1 2.61 % Average Balance Sheet Trends


20 (in millions of US Dollars, unless otherwise indicated) 2025 2024 2023 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Net Interest Income $ 92.7 $ 89.4 $ 89.3 $ 88.6 $ 88.1 $ 87.4 $ 87.1 $ 86.9 $ 90.2 Non-Interest Income 61.2 57.0 58.4 63.2 56.0 55.6 55.1 60.0 52.0 Prov. for Credit (Losses) Recovery (0.6) (0.2) 0.4 (0.3) (1.3) (0.5) 0.4 (1.7) (0.5) Non-Interest Expenses* 92.2 93.0 94.4 92.2 90.0 92.1 89.4 91.4 92.9 Other Gains (Losses) (0.1) 0.1 — 0.1 (0.1) 0.1 0.2 (0.3) — Net Income $ 61.1 $ 53.3 $ 53.8 $ 59.6 $ 52.7 $ 50.6 $ 53.4 $ 53.5 $ 48.7 Non-Core Items** $ 2.2 $ 0.4 $ 2.9 $ — $ 0.1 $ 0.8 $ 1.6 $ 1.8 $ 8.2 Core Net Income** $ 63.3 $ 53.7 $ 56.7 $ 59.6 $ 52.8 $ 51.4 $ 55.0 $ 55.3 $ 57.0 Key Metrics Loan Yield 6.24 % 6.31 % 6.32 % 6.43 % 6.64 % 6.65 % 6.58 % 6.68 % 6.51 % Securities Yield 2.67 2.67 2.68 2.51 2.39 2.30 2.23 2.16 2.06 Cost of Deposits 1.47 1.56 1.60 1.73 1.91 1.89 1.78 1.72 1.52 Net Interest Margin 2.73 2.64 2.70 2.61 2.61 2.64 2.68 2.73 2.76 Core Efficiency Ratio** 56.2 61.1 59.8 58.2 60.2 61.8 59.8 60.5 58.3 Core ROATCE** 25.5 22.3 24.2 25.2 22.5 23.3 24.5 25.4 26.1 Fee Income Ratio 39.9 39.0 39.4 41.7 39.2 39.0 38.6 41.3 36.7 Fully Diluted Share Count (in millions of common shares) 41.9 42.7 43.6 44.6 45.6 46.3 47.2 48.1 49.1 * Includes income taxes ** See the reconciliation of non-GAAP measures on pages 23-24 Income Statement Trends


21 (in millions of US Dollars, unless otherwise indicated) 2025 2024 2023 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Non-Interest Income Asset Management $ 9.9 $ 9.4 $ 9.5 $ 9.1 $ 9.5 $ 8.9 $ 8.8 $ 8.3 $ 8.0 Banking 17.8 14.7 15.1 21.2 14.4 13.8 14.3 18.6 14.1 FX Revenue 13.2 12.0 13.7 13.2 12.2 12.6 13.2 12.8 11.4 Trust 16.2 16.4 15.6 15.1 15.8 15.4 15.0 16.0 14.7 Custody & Other Admin. 3.1 3.2 3.5 3.6 3.5 3.4 3.3 3.3 3.3 Other 0.8 1.4 1.0 0.9 0.7 1.6 0.4 1.0 0.6 Total Non-Interest Income $ 61.2 $ 57.0 $ 58.4 $ 63.2 $ 56.0 $ 55.6 $ 55.1 $ 60.0 $ 52.0 Non-Interest Expense Salaries & Benefits* $ 47.9 $ 46.7 $ 46.9 $ 44.7 $ 44.7 $ 44.8 $ 43.8 $ 45.9 $ 51.3 Technology & Comm. 16.0 16.3 16.0 16.6 16.5 16.9 16.1 17.2 16.0 Professional & O/S Services 5.0 5.2 5.4 5.7 4.8 6.7 5.5 7.0 4.3 Property 8.2 8.8 8.7 8.6 8.6 8.2 8.7 8.7 7.7 Indirect Taxes 5.5 5.8 6.5 5.3 5.5 5.6 6.3 5.0 5.4 Marketing 1.4 1.7 1.8 2.4 1.3 1.6 1.3 1.7 1.5 Intangible Amortization 2.0 2.0 1.9 2.2 1.9 1.9 1.9 1.4 1.4 Other 4.8 5.3 6.0 5.2 5.6 5.5 4.9 5.2 4.8 Total Non-Interest Expense $ 90.8 $ 91.8 $ 93.2 $ 90.6 $ 88.8 $ 91.1 $ 88.5 $ 92.2 $ 92.5 Income Taxes 1.4 1.2 1.2 1.5 1.2 0.9 0.9 (0.8) 0.4 Total Expense incld. Taxes $ 92.2 $ 93.0 $ 94.4 $ 92.2 $ 90.0 $ 92.1 $ 89.4 $ 91.4 $ 92.9 *Includes non-service employee benefits Non-Interest Income & Expense Trends


22 (in millions of US Dollars, unless otherwise indicated) 2025 2024 2023 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Salaries & Benefits* $ 45.8 $ 46.4 $ 44.1 $ 44.7 $ 44.7 $ 44.7 $ 42.5 $ 46.2 $ 43.4 Technology & Comm. 16.0 16.3 16.0 16.6 16.5 16.9 16.1 17.2 16.0 Professional & O/S Services 4.9 5.1 5.4 5.7 4.7 6.1 5.2 4.9 4.3 Property 8.2 8.8 8.7 8.6 8.6 8.2 8.7 8.7 7.7 Indirect Taxes 5.4 5.8 6.3 5.3 5.5 5.5 6.3 5.0 5.1 Marketing 1.4 1.7 1.8 2.4 1.3 1.6 1.3 1.7 1.5 Intangible Amortization 2.0 2.0 1.9 2.2 1.9 1.9 1.9 1.4 1.4 Other 4.8 5.3 6.0 5.2 5.6 5.5 4.9 5.2 4.8 Total Core Non-Interest Expense** $ 88.5 $ 91.4 $ 90.3 $ 90.6 $ 88.6 $ 90.3 $ 86.9 $ 90.4 $ 84.3 Income Taxes 1.4 1.2 1.2 1.5 1.2 0.9 0.9 (0.8) 0.4 Total Core Expense incld. Taxes** $ 89.9 $ 92.6 $ 91.5 $ 92.1 $ 89.8 $ 91.2 $ 87.8 $ 89.6 $ 84.7 * Includes non-service employee benefits ** See the reconciliation of non-GAAP measures on pages 23-24 Core Non-Interest Expense* Trends


23 (in millions of US Dollars, unless otherwise indicated) 2025 2024 Q3 Q2 Q1 Q4 Q3 Net income A $ 61.1 $ 53.3 $ 53.8 $ 59.6 $ 52.7 Non-core (gains), losses and expenses Non-core expenses Early retirement program, voluntary separation, redundancies and other non-core compensation costs 2.2 0.4 2.9 — — Restructuring charges and related professional service fees — — — — 0.1 Total non-core expenses C $ 2.2 $ 0.4 $ 2.9 $ — $ 0.1 Total non-core (gains), losses and expenses D=B+C 2.2 0.4 2.9 — 0.1 Core net income to common shareholders E=A+D $ 63.3 $ 53.7 $ 56.7 $ 59.6 $ 52.8 Average shareholders' equity 1,076.2 1,055.0 1,041.3 1,030.0 1,029.2 Average common equity F 1,076.2 1,055.0 1,041.3 1,030.0 1,029.2 Less: average goodwill and intangible assets (90.0) (91.2) (89.2) (92.9) (95.5) Average tangible common equity G 986.2 963.8 952.1 937.2 933.7 Return on equity A/F 22.5 % 20.3 % 20.9 % 22.9 % 20.3 % Core return on average tangible common equity E/G 25.5 % 22.3 % 24.2 % 25.2 % 22.5 % Core earnings per common share fully diluted Adjusted weighted average number of diluted common shares (in thousands) H 41.9 42.7 43.6 44.6 45.6 Earnings per common share fully diluted A/H 1.46 1.25 1.23 1.34 1.16 Non-core items per share D/H 0.05 0.01 0.07 — — Core earnings per common share fully diluted E/H 1.51 1.26 1.30 1.34 1.16 Core return on average tangible assets Total average assets I $ 14,016.6 $ 14,111.5 $ 13,993.7 $ 13,970.1 $ 14,053.9 Less: average goodwill and intangible assets (90.0) (91.2) (89.2) (92.9) (95.5) Average tangible assets J $ 13,926.6 $ 14,020.3 $ 13,904.5 $ 13,877.2 $ 13,958.3 Return on average assets A/I 1.7 % 1.5 % 1.6 % 1.7 % 1.5 % Core return on average tangible assets E/J 1.8 % 1.5 % 1.7 % 1.7 % 1.5 % Non-GAAP Reconciliation


24 (in millions of US Dollars, unless otherwise indicated) 2025 2024 Q3 Q2 Q1 Q4 Q3 Tangible equity to tangible assets Shareholders' equity K $ 1,106.0 $ 1,069.1 $ 1,057.8 $ 1,020.8 $ 1,064.2 Less: goodwill and intangible assets (88.8) (92.2) (89.7) (89.6) (96.7) Tangible common equity L 1,017.1 977.0 968.1 931.2 967.5 Total assets M 14,086.4 14,185.0 14,019.8 14,231.4 14,373.0 Less: goodwill and intangible assets (88.8) (92.2) (89.7) (89.6) (96.7) Tangible assets N $ 13,997.5 $ 14,092.8 $ 13,930.1 $ 14,141.8 $ 14,276.3 Tangible common equity to tangible assets L/N 7.3 % 6.9 % 6.9 % 6.6 % 6.8 % Tangible book value per share Basic participating shares outstanding (in millions) O 40.6 41.1 42.2 42.9 44.2 Tangible book value per common share L/O 25.06 23.77 22.94 21.70 21.90 Efficiency ratio Non-interest expenses $ 90.8 $ 91.8 $ 93.2 $ 90.6 $ 88.8 Less: Amortization of intangibles (2.0) (2.0) (1.9) (2.2) (1.9) Non-interest expenses before amortization of intangibles P 88.8 89.8 91.3 88.4 86.8 Non-interest income 61.2 57.0 58.4 63.2 56.0 Net interest income before provision for credit losses 92.7 89.4 89.3 88.6 88.1 Net revenue before provision for credit losses and other gains/losses Q $ 153.9 $ 146.4 $ 147.8 $ 151.9 $ 144.1 Efficiency ratio P/Q 57.7 % 61.3 % 61.8 % 58.2 % 60.3 % Core efficiency ratio Non-interest expenses $ 90.8 $ 91.8 $ 93.2 $ 90.6 $ 88.8 Less: non-core expenses (C) (2.2) (0.4) (2.9) — (0.1) Less: amortization of intangibles (2.0) (2.0) (1.9) (2.2) (1.9) Core non-interest expenses before amortization of intangibles R 86.6 89.4 88.4 88.4 86.7 Net revenue before provision for credit losses and other gains/losses Q 153.9 146.4 147.8 151.9 144.1 Core efficiency ratio R/Q 56.2 % 61.1 % 59.8 % 58.2 % 60.2 % Non-GAAP Reconciliation (continued)


25 Our peer group includes the following banks, noted by their ticker symbols: Peer Group • First Hawaiian, Inc. (FHB) • Bank of Hawaii Corporation (BOH) • East West Bancorp, Inc. (EWBC) • Cullen/Frost Bankers, Inc. (CFR) • Associated Banc-Corp (ASB) • Wintrust Financial Corporation (WTFC) • Commerce Bancshares, Inc. (CBSH) • Trustmark Corporation (TRMK) • International Bancshares Corporation (IBOC) • Community Financial System, Inc. (CBU) • First Financial Bankshares, Inc. (FFIN) • Westamerica Bancorporation (WABC) • UMB Financial Corporation (UMBF)