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6-K

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

6-K 2026-04-28 For: 2026-03-31
View Original
Added on April 28, 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 April, 2026

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 March 31, 2026.

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:  April 28, 2026 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 - First quarter 2026 results
99.2 Financial Statements - First quarter 2026 results
99.3 Earnings call presentation - First quarter 2026 results 3
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Butterfield Reports First Quarter 2026 Results

First quarter 2026 highlights:

•Net income of $62.6 million, or $1.53 per share

•Core net income1 of $63.2 million, or $1.55 per share

•Return on average common equity of 22.1% and core return on average tangible common equity1 of 24.1%

•Net interest margin of 2.75%, cost of deposits of 1.24%

•Quarterly cash dividend of $0.50 per share for the quarter ended March 31, 2026

•Repurchases of 0.8 million shares at a total cost of $42.4 million

•Closed previously announced acquisition of Rawlinson & Hunter Guernsey on April 15, 2026

Hamilton, Bermuda - April 28, 2026: 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 March 31, 2026.

Net income for the first quarter of 2026 was $62.6 million, or $1.53 per diluted common share, compared to net income of $63.8 million, or $1.54 per diluted common share, for the previous quarter and $53.8 million, or $1.23 per diluted common share, for the first quarter of 2025. Core net income1 for the first quarter of 2026 was $63.2 million, or $1.55 per diluted common share, compared to $63.8 million, or $1.54 per diluted common share, for the previous quarter and $56.7 million, or $1.30 per diluted common share, for the first quarter of 2025.

The return on average common equity for the first quarter of 2026 was 22.1% compared to 22.7% for the previous quarter and 20.9% for the first quarter of 2025. The core return on average tangible common equity1 for the first quarter of 2026 was 24.1%, compared to 24.6% for the previous quarter and 24.2% for the first quarter of 2025. The efficiency ratio for the first quarter of 2026 was 56.8%, compared to 57.2% for the previous quarter and 61.8% for the first quarter of 2025. The core efficiency ratio1 for the first quarter of 2026 was 56.4% compared with 57.2% in the previous quarter and 59.8% for the first quarter of 2025.

Michael Collins, Butterfield's Chairman and Chief Executive Officer, commented, “The first quarter of 2026 was a solid start to the year, with strong financial performance, as well as continuing our M&A driven growth with the acquisition of Rawlinson & Hunter in Guernsey. During the first quarter, we saw sustained demand for our services across banking, wealth management and trust. Net interest income benefited from lower deposit costs, as well as stable deposit volumes in all of our jurisdictions. The reduction in non-interest expenses demonstrates our operational efficiency, particularly during periods of falling interest rates and market volatility.

“Following our announcement of the Rawlinson & Hunter Guernsey acquisition in February, the integration planning has proceeded well and I am pleased to report that the transaction has now successfully closed. We expect our growing private trust business to benefit from its increased scale in Guernsey and further position Butterfield as a leader in the international private trust world with total assets under administration of $146 billion. Acquisitions remain core to Butterfield’s growth strategy, and we continue to target island banks and trust businesses that we believe will add long-term value for shareholders.”

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

Net income and core net income1 were down in the first quarter of 2026 versus the seasonally high prior quarter, primarily due to lower non-interest income from banking services and higher provision for credit losses, which were partially offset by lower non-interest expenses.

Net interest income (“NII”) for the first quarter of 2026 was $93.3 million, higher compared to $92.6 million in the previous quarter and $4.0 million higher compared to $89.3 million in the first quarter of 2025. NII was higher during the first quarter of 2026 compared to the prior quarter due to a lower cost of deposits following the reduction of market interest rates by central banks and partially offset by lower loan and treasury yields, coupled with lower day count. NII was higher during the first quarter of 2026 compared to the first quarter of 2025 due to a lower cost of deposits due to the aforementioned reduction in market interest rates, increased investment yields with assets deployed into higher yielding available-for-sale investment securities and the redemption of subordinated debt in the second quarter of 2025, and which was partially offset by lower loan and treasury yields.

Net interest margin (“NIM”) for the first quarter of 2026 was 2.75%, an increase of 6 basis points from the previous quarter at 2.69% and compared favorably to 2.70% in the first quarter of 2025. NIM in the first quarter of 2026 increased compared to the prior quarter and the first quarter of 2025 due to a lower cost of deposits and higher investment yields, partially offset by lower treasury and loan yields as central banks decreased market interest rates.

Non-interest income for the first quarter of 2026 was $62.6 million, a decrease of $3.6 million from $66.3 million in the previous quarter and $4.2 million higher than the $58.4 million in the first quarter of 2025. The decrease in the first quarter of 2026 compared to the prior quarter was due to lower banking revenue due to strong fourth quarter seasonality. Non-interest income in the first quarter of 2026 was higher than the first quarter of 2025 due to higher trust revenue from new clients and fee increases and higher banking revenue due to increased credit card volumes.

Non-interest expenses were $90.5 million in the first quarter of 2026, compared to $93.1 million in the previous quarter and $93.2 million in the first quarter of 2025. Core non-interest expenses1 of $89.9 million in the first quarter of 2026 were lower compared to the $93.1 million incurred in the previous quarter and the $90.3 million in the first quarter of 2025. Core non-interest expenses1 in the first quarter of 2026 were lower compared to the prior quarter due to decreased professional and outside services and technology and communications costs. Core non-interest expenses1 in the first quarter of 2026 were lower compared to the first quarter of 2025 due to decreased property, technology and communications and professional and outside services costs, partially offset by higher salaries and benefits.

Period end deposit balances were higher at $12.9 billion compared to December 31, 2025. Average deposits were $12.8 billion in the quarter ended March 31, 2026, which is relatively flat compared to the prior quarter.

Tangible book value per share1 at the end of the first quarter of 2026 was $26.56 per share, slightly higher than $26.41 per share at the end of the prior quarter. The tangible book value per share1 continues to improve due to OCI burndown and retained earnings, net of dividends.

The Board declared a quarterly cash dividend of $0.50 per common share to be paid on May 27, 2026 to shareholders of record on May 13, 2026. During the first quarter of 2026, Butterfield also repurchased 0.8 million common shares under the Bank's existing share repurchase program.

The current total regulatory capital ratio as at March 31, 2026 was 26.9%, compared to 27.8% as at December 31, 2025. Both of these ratios remain conservatively above the minimum regulatory requirements applicable to the Bank.

ANALYSIS AND DISCUSSION OF FIRST QUARTER RESULTS

Income statement Three months ended (Unaudited)
(in $ millions) March 31, 2026 December 31, 2025 March 31, 2025
Non-interest income 62.6 66.3 58.4
Net interest income before provision for credit losses 93.3 92.6 89.3
Total net revenue before provision for credit losses and other gains (losses) 155.9 158.9 147.8
Provision for credit (losses) recoveries (1.4) 0.2 0.4
Total net revenue 154.5 159.1 148.2
Non-interest expenses (90.5) (93.1) (93.2)
Total net income before taxes 64.0 66.0 54.9
Income tax benefit (expense) (1.4) (2.2) (1.2)
Net income 62.6 63.8 53.8
Net earnings per share
Basic 1.57 1.58 1.26
Diluted 1.53 1.54 1.23
Per diluted share impact of other non-core items 1 0.02 0.07
Core earnings per share on a fully diluted basis 1 1.55 1.54 1.30
Adjusted weighted average number of participating shares on a fully diluted basis (in thousands of shares) 40,881 41,439 43,592
Key financial ratios
Return on common equity 22.1 % 22.7 % 20.9 %
Core return on average tangible common equity 1 24.1 % 24.6 % 24.2 %
Return on average assets 1.8 % 1.8 % 1.6 %
Net interest margin 2.75 % 2.69 % 2.70 %
Core efficiency ratio 1 56.4 % 57.2 % 59.8 %

(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) March 31, 2026 December 31, 2025
Cash and cash equivalents 1,942 1,709
Securities purchased under agreements to resell 1,018 1,096
Short-term investments 912 757
Investments in securities 5,676 5,688
Loans, net of allowance for credit losses 4,394 4,382
Premises, equipment and computer software, net 161 159
Goodwill and intangibles, net 84 87
Accrued interest and other assets 238 217
Total assets 14,425 14,095
Total deposits 12,882 12,698
Securities sold under agreements to repurchase 132
Accrued interest and other liabilities 274 255
Total liabilities 13,289 12,953
Common shareholders’ equity 1,136 1,142
Total shareholders' equity 1,136 1,142
Total liabilities and shareholders' equity 14,425 14,095
Key Balance Sheet Ratios: March 31, 2026 December 31, 2025
Common equity tier 1 capital ratio 26.8 % 27.6 %
Tier 1 capital ratio 26.8 % 27.6 %
Total capital ratio 26.9 % 27.8 %
Leverage ratio 7.5 % 7.6 %
Risk-Weighted Assets (in $ millions) 4,139 3,991
Risk-Weighted Assets / total assets 28.7 % 28.3 %
Tangible common equity ratio 7.3 % 7.5 %
Book value per common share (in $) 28.68 28.58
Tangible book value per share (in $) 26.56 26.41
Non-accrual loans/gross loans 2.0 % 2.1 %
Non-performing assets/total assets 1.2 % 0.8 %
Allowance for credit losses/total loans 0.6 % 0.6 %

QUARTER ENDED MARCH 31, 2026 COMPARED WITH THE QUARTER ENDED DECEMBER 31, 2025

Net Income

Net income for the quarter ended March 31, 2026 was $62.6 million, down from $63.8 million in the prior quarter.

The change in net income during the quarter ended March 31, 2026 compared to the previous quarter is attributable to the following:

•$3.6 million decrease in non-interest income driven by (i) $3.5 million decrease in banking fees due to prior period seasonality and (ii) $0.9 million decrease in trust revenue driven by reduced time-based and special fees, partially offset by (iii) $0.9 million increase in foreign exchange fees driven by volume;

•$1.6 million increase in allowance for credit losses due to an increased provision on a legacy Bermuda commercial facility and partially offset by the release of a provision on a residential mortgage facility in the Channel Islands and UK segment;

•$2.6 million decrease in non-interest expenses mainly due to (i) $0.8 million decrease in professional and outside services for project work; (ii) $1.2 million decrease in technology and communication costs; (iii) $0.8 million decrease in property cost expenses and (iv) $0.6 million decrease in non-employee benefit costs, partially offset by (v) $1.5 million increase in payroll taxes related to the annual vesting of share compensation; and

•$0.8 million decrease in income tax expenses mainly due to lower taxable income in the Channel Islands and UK segment.

Non-Core Items1

Non-core items resulted in expenses, net of gains, of $0.6 million for the first quarter of 2026. Non-core items for the quarter are comprised principally of acquisition-related expenses.

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 MARCH 31, 2026 COMPARED WITH DECEMBER 31, 2025

Total Assets

Total assets of the Bank were $14.4 billion at March 31, 2026, an increase of $0.3 billion from December 31, 2025. The Bank maintained a highly liquid position at March 31, 2026, with $9.5 billion of cash, bank deposits, reverse repurchase agreements and liquid investments representing 66.2% of total assets, compared with 65.6% at December 31, 2025.

Loans Receivable

The loan portfolio totaled $4.4 billion at March 31, 2026, relatively flat compared to December 31, 2025.

The allowance for credit losses at March 31, 2026 totaled $26.3 million, an increase compared to $25.4 million at December 31, 2025.

The loan portfolio represented 30.5% of total assets at March 31, 2026 (December 31, 2025: 31.1%), while loans as a percentage of total deposits was 34.1% at March 31, 2026 (December 31, 2025: 34.5%). Both ratios remain relatively stable at March 31, 2026 compared to December 31, 2025.

As at March 31, 2026, the Bank had gross non-accrual loans of $90.2 million, representing 2.0% of total gross loans, a decrease of $1.2 million from $91.3 million, or 2.1% of total loans, at December 31, 2025. The decrease in non-accrual loans was driven by a few residential mortgage facilities migrating back to accrual status.

Investment in Securities

The investment portfolio was $5.7 billion at March 31, 2026, which remains relatively stable compared to December 31, 2025 balances.

The investment portfolio is made up of high-quality assets with 100% invested in A-or-better-rated securities. The investment book yield was 2.78% during the quarter ended March 31, 2026 compared with 2.72% during the previous quarter. Total net unrealized losses on the available-for-sale portfolio increased to $99.7 million, compared with total net unrealized losses of $89.4 million at December 31, 2025, as a result of rising long-term US dollar interest rates.

Deposits

Average total deposit balances were $12.8 billion for the quarter ended March 31, 2026, which is relatively flat compared to December 31, 2025. Period end balances as at March 31, 2026 were $12.9 billion, higher compared to $12.7 billion in December 31, 2025.

Average Balance Sheet2

For the three months ended
March 31, 2026 December 31, 2025 March 31, 2025
(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 3,646.1 30.1 3.35 3,588.7 31.1 3.44 3,519.3 34.5 3.98
Investment in securities 5,714.1 39.2 2.78 5,686.1 39.0 2.72 5,462.6 36.1 2.68
Available-for-sale 2,742.0 22.3 3.31 2,657.1 21.9 3.27 2,247.5 17.8 3.21
Held-to-maturity 2,972.1 16.8 2.30 3,029.0 17.1 2.24 3,215.1 18.3 2.31
Loans 4,399.8 63.4 5.84 4,396.3 66.6 6.01 4,455.3 69.4 6.32
Commercial 1,171.2 16.6 5.75 1,188.6 18.3 6.11 1,320.3 20.6 6.32
Consumer 3,228.6 46.8 5.88 3,207.7 48.3 5.98 3,135.0 48.8 6.32
Interest earning assets 13,760.0 132.7 3.91 13,671.1 136.8 3.97 13,437.3 140.0 4.23
Other assets 455.9 444.9 430.7
Total assets 14,215.8 14,116.0 13,868.0
Liabilities
Deposits - interest bearing 10,143.9 (39.3) (1.57) 10,125.1 (44.1) (1.73) 9,853.4 (49.1) (2.02)
Securities sold under agreements to repurchase 6.6 (0.1) (3.99) 1.2 (4.53) 16.3 (0.2) (4.42)
Long-term debt 98.7 (1.4) (5.63)
Interest bearing liabilities 10,150.5 (39.4) (1.57) 10,126.3 (44.2) (1.73) 9,968.5 (50.7) (2.06)
Non-interest bearing current accounts 2,684.5 2,645.9 2,622.4
Other liabilities 249.5 238.2 263.6
Total liabilities 13,084.5 13,010.3 12,854.4
Shareholders’ equity 1,131.4 1,105.6 1,013.5
Total liabilities and shareholders’ equity 14,215.8 14,116.0 13,868.0
Non-interest bearing funds net of <br>   non-interest earning assets <br>   (free balance) 3,609.5 3,544.8 3,468.8
Net interest margin 93.3 2.75 92.6 2.69 89.3 2.70

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

Assets Under Administration and Assets Under Management

Total assets under administration for the trust and custody businesses were $137.4 billion and $31.8 billion, respectively, at March 31, 2026, while assets under management were $6.8 billion at March 31, 2026. This compares with $134.7 billion, $32.3 billion and $6.9 billion, respectively, at December 31, 2025.

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) March 31, 2026 December 31, 2025 March 31, 2025
Net income 62.6 63.8 53.8
Non-core items
Non-core expenses
Early retirement program, voluntary separation, redundancies and other non-core compensation costs 2.9
Business acquisition costs 0.6
Total non-core expenses 0.6 2.9
Total non-core items 0.6 2.9
Core net income 63.2 63.8 56.7
Average common equity 1,148.0 1,117.3 1,041.3
Less: average goodwill and intangible assets (86.0) (87.2) (89.2)
Average tangible common equity 1,062.0 1,030.1 952.1
Core earnings per share fully diluted 1.55 1.54 1.30
Return on common equity 22.1 % 22.7 % 20.9 %
Core return on average tangible common equity 24.1 % 24.6 % 24.2 %
Shareholders' equity 1,136.1 1,141.9 1,057.8
Less: goodwill and intangible assets (83.9) (86.8) (89.7)
Tangible common equity 1,052.2 1,055.1 968.1
Basic participating shares outstanding (in millions) 39.6 39.9 42.2
Tangible book value per common share 26.56 26.41 22.94
Non-interest expenses 90.5 93.1 93.2
Less: non-core expenses (0.6) (2.9)
Less: amortization of intangibles (2.0) (2.2) (1.9)
Core non-interest expenses before amortization of intangibles 88.0 90.9 88.4
Core revenue before other gains and losses and provision for credit losses 155.9 158.9 147.8
Core efficiency ratio 56.4 % 57.2 % 59.8 %

Conference Call Information:

Butterfield will host a conference call to discuss the Bank’s results on Wednesday, April 29, 2026 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, identify and enter into acquisitions or other strategic transactions and the timing and anticipated benefits thereof (including with respect to the acquisition of R&H Guernsey), and involve known and unknown risks, uncertainties and other factors, which may be beyond our control. These risks and uncertainties 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 Butterfield’s ability to realize the anticipated benefits of the acquisition of R&H Guernsey in the expected time-frames or at all; Butterfield’s ability to successfully integrate R&H Guernsey’s operations into those of Butterfield; the risk that such integration may be more difficult, time-consuming or costly than expected; the risk that revenues following the acquisition of R&H Guernsey may be lower than expected; the risk that operating costs, customer loss and business disruption (including, without limitation, difficulties in maintaining relationships with employees, customers, clients or suppliers) may be greater than expected following the acquisition; risks associated with the disruption of management’s attention from ongoing business operations due to the acquisition; and the outcome of any legal proceedings that may be instituted against Butterfield or R&H Guernsey. Other factors that may impact Butterfield’s future results, performance or achievements include worldwide economic conditions (including economic growth and general business conditions) and fluctuations of interest rates, inflation, a decline in Bermuda’s sovereign credit rating, any sudden liquidity crisis, the successful entry into, completion and integration of acquisitions or the realization of the anticipated benefits of such acquisitions, success in business retention (including the retention of relationships associated with our acquisition of R&H Guernsey), 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 release 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 March 31, 2026 and December 31, 2025 2
Consolidated Statements of Operations (unaudited) for the Three Months Ended March 31, 2026 and 2025 3
Consolidated Statements of Comprehensive Income (unaudited) for the Three Months Ended March 31, 2026 and 2025 4
Consolidated Statements of Changes in Shareholders’ Equity (unaudited) for the Three Months Ended March 31, 2026 and 2025 5
Consolidated Statements of Cash Flows (unaudited) for the Three Months Ended March 31, 2026 and 2025 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
March 31, 2026 December 31, 2025
Assets
Cash and demand deposits with banks - Non-interest bearing 120,175 105,440
Demand deposits with banks - Interest bearing 178,487 171,201
Cash equivalents - Interest bearing 1,643,226 1,432,295
Cash and cash equivalents 1,941,888 1,708,936
Securities purchased under agreements to resell 1,017,737 1,096,238
Short-term investments 912,430 756,543
Investment in securities
Available-for-sale at fair value (amortized cost: $2,836,355 (2025: $2,785,608)) 2,736,645 2,696,253
Held-to-maturity (fair value: $2,506,590 (2025: $2,566,470)) 2,939,086 2,992,052
Total investment in securities 5,675,731 5,688,305
Loans
Loans 4,420,327 4,407,787
Allowance for credit losses (26,276) (25,376)
Loans, net of allowance for credit losses 4,394,051 4,382,411
Premises, equipment and computer software, net 161,495 158,504
Goodwill 24,989 25,385
Other intangible assets, net 58,935 61,412
Equity method investments 6,753 6,755
Accrued interest and other assets 230,749 210,405
Total assets 14,424,758 14,094,894
Liabilities
Deposits
Non-interest bearing 2,636,446 2,701,145
Interest bearing 10,245,521 9,996,923
Total deposits 12,881,967 12,698,068
Securities sold under agreements to repurchase 132,300
Employee benefit plans 84,266 84,466
Accrued interest and other liabilities 190,134 170,509
Total other liabilities 406,700 254,975
Total liabilities 13,288,667 12,953,043
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: 39,610,581 (2025: 39,948,264) 396 399
Additional paid-in capital 838,761 851,223
Retained earnings 512,219 494,384
Accumulated other comprehensive income (loss) (215,285) (204,155)
Total shareholders’ equity 1,136,091 1,141,851
Total liabilities and shareholders’ equity 14,424,758 14,094,894

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
March 31, 2026 March 31, 2025
Non-interest income
Asset management 10,440 9,549
Banking 16,285 15,076
Foreign exchange revenue 14,569 13,680
Trust 16,662 15,628
Custody and other administration services 3,702 3,509
Other non-interest income 986 988
Total non-interest income 62,644 58,430
Interest income
Interest and fees on loans 63,397 69,435
Investments (none of the investment securities are intrinsically tax-exempt)
Available-for-sale 22,349 17,763
Held-to-maturity 16,823 18,307
Cash and cash equivalents, securities purchased under agreements to resell and short-term investments 30,110 34,507
Total interest income 132,679 140,012
Interest expense
Deposits 39,330 49,136
Long-term debt 1,371
Securities sold under agreements to repurchase 65 178
Total interest expense 39,395 50,685
Net interest income before provision for credit losses 93,284 89,327
Provision for credit (losses) recoveries (1,448) 379
Net interest income after provision for credit losses 91,836 89,706
Net other gains (losses) 4 25
Total other gains (losses) 4 25
Total net revenue 154,484 148,161
Non-interest expense
Salaries and other employee benefits 45,034 45,528
Technology and communications 15,416 16,009
Professional and outside services 5,533 5,444
Property 7,670 8,721
Indirect taxes 6,948 6,494
Non-service employee benefits expense 1,049 1,337
Marketing 1,753 1,775
Amortization of intangible assets 1,981 1,897
Other expenses 5,125 6,013
Total non-interest expense 90,509 93,218
Net income before income taxes 63,975 54,943
Income tax benefit (expense) (1,352) (1,179)
Net income 62,623 53,764
Earnings per common share
Basic earnings per share 1.57 1.26
Diluted earnings per share 1.53 1.23

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
March 31, 2026 March 31, 2025
Net income 62,623 53,764
Other comprehensive income (loss), net of taxes
Unrealized net gains (losses) on translation of net investment in foreign operations (3,216) 3,931
Net changes on investments transferred to held-to-maturity 1,805 1,777
Unrealized net gains (losses) on available-for-sale investments (10,375) 31,911
Employee benefit plans adjustments 656 361
Other comprehensive income (loss), net of taxes (11,130) 37,980
Total comprehensive income (loss) 51,493 91,744

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)

March 31, 2025
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 399 43,537,979 435
Retirement of shares (8) (1,094,727) (11)
Issuance of common shares 5 376,839 4
Balance at end of period 396 42,820,091 428
Additional paid-in capital
Balance at beginning of period 851,223 916,394
Share-based compensation 5,155 5,341
Share-based settlements 18 40
Retirement of shares (17,629) (23,042)
Issuance of common shares, net of underwriting discounts and commissions (6) (4)
Balance at end of period 838,761 898,729
Retained earnings
Balance at beginning of period 494,384 422,461
Net Income for the period 62,623 53,764
Common share cash dividends declared and paid, 0.50 per share (2025: 0.44 per share) (19,991) (18,769)
Retirement of shares (24,797) (17,857)
Balance at end of period 512,219 439,599
Treasury common shares
Balance at beginning of period 619,212 (23,063)
Purchase of treasury common shares (42,434) 1,094,727 (41,358)
Retirement of shares 42,434 (1,094,727) 40,910
Balance at end of period 619,212 (23,511)
Accumulated other comprehensive income (loss)
Balance at beginning of period (204,155) (295,415)
Other comprehensive income (loss), net of taxes (11,130) 37,980
Balance at end of period (215,285) (257,435)
Total shareholders' equity 1,136,091 1,057,810

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)

Three months ended
March 31, 2026 March 31, 2025
Cash flows from operating activities
Net income 62,623 53,764
Adjustments to reconcile net income to operating cash flows
Depreciation, accretion and amortization 13,558 12,569
Provision for credit losses (recoveries) 1,448 (379)
Share-based payments and settlements 5,173 5,381
(Increase) decrease in carrying value of equity method investments (13) (80)
Dividends received from equity method investments 15 30
Changes in operating assets and liabilities
(Increase) decrease in accrued interest receivable and other assets (21,200) 19,360
Increase (decrease) in employee benefit plans, accrued interest payable and other liabilities (2,696) (27,825)
Cash provided by (used in) operating activities 58,908 62,820
Cash flows from investing activities
(Increase) decrease in securities purchased under agreements to resell having original maturities of 3 months of less (22,296) 322,979
Securities purchased under agreements to resell having original maturities of more than 3 months: purchases (398,805) (249,695)
Securities purchased under agreements to resell having original maturities of more than 3 months: proceeds from maturities 481,925 419,578
Short-term investments other than restricted cash: proceeds from maturities and sales 313,675 409,615
Short-term investments other than restricted cash: purchases (471,191) (593,864)
Available-for-sale investments: proceeds from maturities and pay downs 138,398 137,355
Available-for-sale investments: purchases (189,713) (97,155)
Held-to-maturity investments: proceeds from maturities and pay downs 53,550 56,450
Net (increase) decrease in loans (46,974) 12,675
Additions to premises, equipment and computer software (8,596) (7,402)
Cash provided by (used in) investing activities (150,027) 410,536
Cash flows from financing activities
Net increase (decrease) in deposits 257,303 (241,478)
Net increase (decrease) in securities sold under agreements to repurchase having original maturities of 3 months of less 132,748 (90,032)
Common shares repurchased (42,434) (41,358)
Cash dividends paid on common shares (19,991) (18,769)
Cash provided by (used in) financing activities 327,626 (391,637)
Net effect of exchange rates on cash, cash equivalents and restricted cash (10,374) 15,846
Net increase (decrease) in cash, cash equivalents and restricted cash 226,133 97,565
Cash, cash equivalents and restricted cash: beginning of period 1,776,683 2,088,542
Cash, cash equivalents and restricted cash: end of period 2,002,816 2,186,107
Components of cash, cash equivalents and restricted cash at end of period
Cash and cash equivalents 1,941,888 2,097,344
Restricted cash included in short-term investments on the consolidated balance sheets 60,928 88,763
Total cash, cash equivalents and restricted cash at end of period 2,002,816 2,186,107
Supplemental disclosure of non-cash items
Initial recognition of right-of-use assets and operating lease liabilities 766

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, 2025.

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. Certain prior year figures have been reclassified to agree to current period presentation.

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 and intangibles

•Employee benefit plans

New Accounting Pronouncements

There were no accounting developments issued during the three months ended March 31, 2026 or accounting standards pending adoption which impacted the Bank.

Note 3: Cash and cash equivalents

March 31, 2026 December 31, 2025
Non-interest bearing
Cash and demand deposits with banks 120,175 105,440
Interest bearing
Demand deposits with banks 178,487 171,201
Cash equivalents 1,643,226 1,432,295
Sub-total - Interest bearing 1,821,713 1,603,496
Total cash and cash equivalents 1,941,888 1,708,936

Note 4: Short-term investments

March 31, 2026 December 31, 2025
Unrestricted
Maturing within three months 319,114 321,566
Maturing between three to six months 229,191 223,239
Maturing between six to twelve months 303,197 143,991
Total unrestricted short-term investments 851,502 688,796
Affected by drawing restrictions related to minimum reserve and derivative margin requirements
Interest earning demand and term deposits 60,928 67,747
Total restricted short-term investments 60,928 67,747
Total short-term investments 912,430 756,543

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.

March 31, 2026 December 31, 2025
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 2,822,113 5,862 (104,518) 2,723,457 2,770,749 12,549 (100,827) 2,682,471
Residential mortgage-backed securities 14,242 (1,054) 13,188 14,859 (1,077) 13,782
Total available-for-sale 2,836,355 5,862 (105,572) 2,736,645 2,785,608 12,549 (101,904) 2,696,253
Held-to-maturity¹
US government and federal agencies 2,939,086 428 (432,924) 2,506,590 2,992,052 857 (426,439) 2,566,470
Total held-to-maturity 2,939,086 428 (432,924) 2,506,590 2,992,052 857 (426,439) 2,566,470

¹For the three months ended March 31, 2026 and March 31, 2025, 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 March 31, 2026, comprising 176 securities representing 71% of the AFS portfolios' carrying value (December 31, 2025: 156 and 52.1%), represent credit losses. Total gross unrealized AFS losses were 5.4% of the fair value of the affected securities (December 31, 2025: 7.3%).

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 March 31, 2026, were comprised of 218 securities representing 98.8% of the HTM portfolios’ carrying value (December 31, 2025: 218 and 98.8%). Total gross unrealized HTM losses were 17.5% of the fair value of affected securities (December 31, 2025: 16.9%).

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 US prime securities (December 31, 2025: 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 41.7% - 51.7%, 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
March 31, 2026 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 792,818 (5,051) 1,136,893 (99,467) 1,929,711 (104,518)
Residential mortgage-backed securities 13,188 (1,054) 13,188 (1,054)
Total available-for-sale securities with unrealized losses 792,818 (5,051) 1,150,081 (100,521) 1,942,899 (105,572)
Held-to-maturity securities with unrealized losses
US government and federal agencies 1,401 (21) 2,470,736 (432,903) 2,472,137 (432,924)
Less than 12 months 12 months or more
December 31, 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 94,588 (120) 1,296,411 (100,707) 1,390,999 (100,827)
Residential mortgage-backed securities 13,782 (1,077) 13,782 (1,077)
Total available-for-sale securities with unrealized losses 94,588 (120) 1,310,193 (101,784) 1,404,781 (101,904)
Held-to-maturity securities with unrealized losses
US government and federal agencies 2,530,638 (426,439) 2,530,638 (426,439)

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
March 31, 2026 Within 1 year 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 490,576 866,387 1,366,494 2,723,457
Residential mortgage-backed securities 13,188 13,188
Total available-for-sale 490,576 866,387 1,379,682 2,736,645
Held-to-maturity
US government and federal agencies 2,939,086 2,939,086

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.

March 31, 2026 December 31, 2025
Pledged investments - secured customer deposit product Amortized<br> cost Fair<br> value Amortized<br> cost Fair<br> value
Available-for-sale 18,148 17,168 19,184 18,331
Held-to-maturity 99,088 88,625 96,811 87,154

The Bank also pledges certain 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 discloses 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 March 31, 2026 is 5.76% (December 31, 2025: 5.81%). The interest receivable on total loans as at March 31, 2026 is $10.5 million (December 31, 2025: $11.1 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 Group Credit Committee is also responsible for approving the allowance for expected credit losses 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:

March 31, 2026 Pass Special<br> mention Substandard Non-accrual Total amortized cost Allowance for expected credit losses Total net loans
Commercial loans
Government 293,745 293,745 (233) 293,512
Commercial and industrial 155,078 652 17,121 172,851 (14,284) 158,567
Commercial overdrafts 56,485 380 56,865 (90) 56,775
Total commercial loans 505,308 652 17,501 523,461 (14,607) 508,854
Commercial real estate loans
Commercial mortgage 482,211 4,449 1,993 3,405 492,058 (1,027) 491,031
Construction 84,250 84,250 84,250
Total commercial real estate loans 566,461 4,449 1,993 3,405 576,308 (1,027) 575,281
Consumer loans
Automobile financing 19,346 2 127 19,475 (48) 19,427
Credit card 95,592 639 96,231 (2,130) 94,101
Overdrafts 32,306 33 8 32,347 (329) 32,018
Other consumer1 44,183 805 785 45,773 (836) 44,937
Total consumer loans 191,427 1,479 920 193,826 (3,343) 190,483
Residential mortgage loans 2,892,796 6,399 159,212 68,325 3,126,732 (7,299) 3,119,433
Total 4,155,992 10,848 163,336 90,151 4,420,327 (26,276) 4,394,051

1 Other consumer loans’ amortized cost includes $6 million of cash and portfolio secured lending and $31 million of lending secured by buildings in construction or other collateral.

December 31, 2025 Pass Special<br> mention Substandard Non-accrual Total amortized cost Allowance for expected credit losses Total net loans
Commercial loans
Government 276,815 276,815 (257) 276,558
Commercial and industrial 176,753 667 17,130 194,550 (12,030) 182,520
Commercial overdrafts 62,819 610 105 195 63,729 (70) 63,659
Total commercial loans 516,387 610 772 17,325 535,094 (12,357) 522,737
Commercial real estate loans
Commercial mortgage 481,978 184 2,062 3,434 487,658 (1,098) 486,560
Construction 77,573 77,573 77,573
Total commercial real estate loans 559,551 184 2,062 3,434 565,231 (1,098) 564,133
Consumer loans
Automobile financing 18,993 3 174 19,170 (27) 19,143
Credit card 98,398 680 99,078 (2,184) 96,894
Overdrafts 35,022 32 5 35,059 (350) 34,709
Other consumer1 40,605 812 829 42,246 (854) 41,392
Total consumer loans 193,018 1,527 1,008 195,553 (3,415) 192,138
Residential mortgage loans 2,916,341 3,769 122,239 69,560 3,111,909 (8,506) 3,103,403
Total 4,185,297 4,563 126,600 91,327 4,407,787 (25,376) 4,382,411

1 Other consumer loans’ amortized cost includes $6 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:

March 31, 2026 Pass Special<br> mention Substandard Non-accrual Total amortized cost
Loans by origination year
2026 169,027 2,367 171,394
2025 509,999 13,185 523,184
2024 435,758 22,413 125 458,296
2023 269,567 1,015 34 270,616
2022 701,003 782 7,675 44 709,504
Prior 1,882,522 7,699 118,376 89,560 2,098,157
Overdrafts and credit cards 188,116 672 388 189,176
Total amortized cost 4,155,992 10,848 163,336 90,151 4,420,327
December 31, 2025 Pass Special<br> mention Substandard Non-accrual Total amortized cost
--- --- --- --- --- ---
Loans by origination year
2025 514,608 514,608
2024 470,244 247 181 470,672
2023 283,923 1,039 54 285,016
2022 722,368 805 6,250 25 729,448
2021 350,808 257 351,065
Prior 1,643,350 3,148 118,246 90,610 1,855,354
Overdrafts and credit cards 199,996 610 818 200 201,624
Total amortized cost 4,185,297 4,563 126,600 91,327 4,407,787

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.

March 31, 2026 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 293,745 293,745
Commercial and industrial 17,121 17,121 155,730 172,851
Commercial overdrafts 380 380 56,485 56,865
Total commercial loans 17,501 17,501 505,960 523,461
Commercial real estate loans
Commercial mortgage 323 2,970 3,293 488,765 492,058
Construction 84,250 84,250
Total commercial real estate loans 323 2,970 3,293 573,015 576,308
Consumer loans
Automobile financing 181 127 308 19,167 19,475
Credit card 655 424 476 1,555 94,676 96,231
Overdrafts 41 41 32,306 32,347
Other consumer 44 16 660 720 45,053 45,773
Total consumer loans 880 440 1,304 2,624 191,202 193,826
Residential mortgage loans 30,496 3,075 146,730 180,301 2,946,431 3,126,732
Total amortized cost 31,699 3,515 168,505 203,719 4,216,608 4,420,327

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, 2025 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 276,815 276,815
Commercial and industrial 17,130 17,130 177,420 194,550
Commercial overdrafts 300 300 63,429 63,729
Total commercial loans 17,430 17,430 517,664 535,094
Commercial real estate loans
Commercial mortgage 328 174 3,434 3,936 483,722 487,658
Construction 77,573 77,573
Total commercial real estate loans 328 174 3,434 3,936 561,295 565,231
Consumer loans
Automobile financing 99 14 160 273 18,897 19,170
Credit card 596 515 466 1,577 97,501 99,078
Overdrafts 37 37 35,022 35,059
Other consumer 270 17 675 962 41,284 42,246
Total consumer loans 965 546 1,338 2,849 192,704 195,553
Residential mortgage loans 13,863 33,158 90,727 137,748 2,974,161 3,111,909
Total amortized cost 15,156 33,878 112,929 161,963 4,245,824 4,407,787

Changes in Allowances For Credit Losses

Allowance for expected credit losses increased during the three months ended March 31, 2026 compared to December 31, 2025 due to a legacy Bermuda commercial facility and partially offset by the release of a provision on a residential mortgage facility in the Channel Islands and UK segment. As disclosed in Note 2 of the December 31, 2025 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.

Three months ended March 31, 2026
Commercial Commercial<br> real estate Consumer Residential<br> mortgage Total
Balance at the beginning of period 12,357 1,098 3,415 8,506 25,376
Provision increase (decrease) 2,346 (71) 380 (1,223) 1,432
Recoveries of previous charge-offs 322 42 364
Charge-offs, by origination year
2026
2025
2024 (52) (52)
2023 (17) (17)
2022
Prior (83) (3) (86)
Overdrafts and credit cards (2) (697) (699)
Other (11) (5) (26) (42)
Allowances for expected credit losses at end of period 14,607 1,027 3,343 7,299 26,276

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 March 31, 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) 774 (2,136) (59) 1,017 (404)
Recoveries of previous charge-offs 652 41 693
Charge-offs, by origination year
2025
2024
2023 (30) (30)
2022
2021
Prior (250) (34) (13) (86) (383)
Overdrafts and credit cards (7) (376) (383)
Other 11 5 46 62
Allowances for expected credit losses at end of period 12,212 1,097 3,463 8,492 25,264

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 three months ended March 31, 2026, no interest was recognized on non-accrual loans. No credit deteriorated loans were purchased during the period.

March 31, 2026 December 31, 2025
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 17,121 17,121 17,130 17,130
Commercial overdrafts 380 380 195 105 300
Total commercial loans 17,501 17,501 17,325 105 17,430
Commercial real estate loans
Commercial mortgage 1,850 1,555 3,405 2,891 543 3,434
Total commercial real estate loans 1,850 1,555 3,405 2,891 543 3,434
Consumer loans
Automobile financing 127 127 99 75 174
Credit cards 476 476 466 466
Overdrafts 8 33 41 5 32 37
Other consumer 456 329 785 494 335 829
Total consumer loans 464 456 509 1,429 598 410 498 1,506
Residential mortgage loans 47,010 21,315 84,753 153,078 49,357 20,203 27,418 96,978
Total non-performing loans 66,825 23,326 85,262 175,413 70,171 21,156 28,021 119,348

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 March 31, 2026 and March 31, 2025 made to borrowers experiencing financial difficulty during the three-months ended March 31, 2026 and March 31, 2025.

Amortized cost basis Weighted average financial effects
March 31, 2026 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 668 4,764 951 0.2 % 0 13 3.4 %
Amortized cost basis Weighted average financial effects
--- --- --- --- --- --- --- --- --- --- ---
March 31, 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 1,223 419 1,230 0.1 % 0 34 2.7 %

Age analysis and subsequent default of modified loans.

As at March 31, 2026 and March 31, 2025, all loans for which a concession was granted during the preceding 12 months are current, except for the following:

Residential mortgage loans:

–$0.8 million (March 31, 2025: $1.2 million) of residential mortgage loans for which a term extension and reduction in interest rate was granted are 30 to 59 days past due;

–Nil (March 31, 2025: $0.2 million) of residential mortgages loans for which a term extension was granted are 60 to 89 days past due; and

–$25.7 million (March 31, 2025: $0.2 million) of residential mortgage loans for which a term extension and reduction in interest rate was granted 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)

March 31, 2026 December 31, 2025
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 4,068 4,068 3,568 3,568
Bermuda 45,930 1,440,555 305,559 1,792,044 41,849 1,471,971 317,243 1,831,063
Canada 1,119,314 1,119,314 1,276,109 1,276,109
Cayman Islands 38,315 1,052,073 218,652 1,309,040 37,633 1,029,012 198,769 1,265,414
France 115,451 115,451 117,550 117,550
Germany 22,129 22,129 6,121 6,121
Guernsey 1 533,584 111,334 644,919 1 541,110 99,753 640,864
Ireland 10,699 10,699 26,027 26,027
Japan 151,354 151,354 102,407 102,407
Jersey 355,496 35,580 391,076 306,190 65,666 371,856
Mauritius 870 870 686 686
Norway 10,099 10,099 90,585 90,585
Singapore 1,129 1,129
Switzerland 9,369 9,369 9,642 9,642
The Bahamas 54 2,750 2,804 186 2,895 3,081
United Kingdom 1,566,683 1,035,869 130,662 2,733,214 1,357,142 1,056,609 143,314 2,557,065
United States 775,458 775,458 490,782 490,782
Other 1,132 1,132 1,429 1,429
Total gross exposure 3,872,055 4,420,327 801,787 9,094,169 3,561,717 4,407,787 824,745 8,794,249

Note 8: Deposits

March 31, 2026 December 31, 2025
Non-interest bearing demand deposits 2,636,446 2,701,145
Interest bearing demand deposits 6,440,210 6,055,342
Interest bearing term deposits 3,805,311 3,941,581
Total deposits 12,881,967 12,698,068
March 31, 2026
--- ---
As of March 31, 2026, the remaining maturities of interest-bearing term deposits in each of the 12-month periods ending March 31 were as follows:
2027 3,745,544
2028 23,506
2029 22,920
2030 8,370
2031 4,971
Total term deposits 3,805,311

¹The weighted-average interest rate on interest-bearing demand deposits as at March 31, 2026 is 0.67% (December 31, 2025: 0.74%).

Uninsured term deposits totaled $3.7 billion as at March 31, 2026 (December 31, 2025: $3.9 billion)

By Type and Segment March 31, 2026 December 31, 2025
Payable <br>on demand Payable on a<br>fixed date Total Payable <br>on demand Payable on a<br>fixed date Total
Bermuda 3,613,028 1,001,658 4,614,686 3,529,577 951,658 4,481,235
Cayman 3,101,537 923,999 4,025,536 2,980,600 1,085,168 4,065,768
Channel Islands and the UK 2,362,091 1,879,654 4,241,745 2,246,310 1,904,755 4,151,065
Total deposits 9,076,656 3,805,311 12,881,967 8,756,487 3,941,581 12,698,068

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 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 included an estimate of the 2026 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, 2025. During the three months ended March 31, 2026, there have been no material revisions to these estimates.

Three months ended
Line item in the consolidated statements of operations March 31, 2026 March 31, 2025
Defined benefit pension expense (income)
Interest cost Non-service employee benefits expense 1,213 1,281
Expected return on plan assets Non-service employee benefits expense (1,674) (1,619)
Amortization of net actuarial (gains) losses Non-service employee benefits expense 509 583
Amortization of prior service (credit) cost Non-service employee benefits expense 21 20
Total defined benefit pension expense (income) 69 265
Post-retirement medical benefit expense (income)
Service cost Salaries and other employee benefits 3 11
Interest cost Non-service employee benefits expense 1,009 1,092
Amortization of net actuarial (gains) losses Non-service employee benefits expense (160) 131
Amortization of prior service (credit) cost Non-service employee benefits expense 131 (151)
Total post-retirement medical benefit expense (income) 983 1,083

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 March 31, 2026, $121.3 million (December 31, 2025: $125.0 million) of standby letters of credit were issued under this facility.

Outstanding unfunded commitments to extend credit March 31, 2026 December 31, 2025
Commitments to extend credit 560,332 577,370
Documentary and commercial letters of credit 554 859
Total unfunded commitments to extend credit 560,886 578,229
Allowance for credit losses (148) (131)

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.

The Bank of N.T. Butterfield & Son Limited

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

(In thousands of US dollars, unless otherwise stated)

March 31, 2026 December 31, 2025
Outstanding financial guarantees Gross Collateral Net Gross Collateral Net
Standby letters of credit 239,839 217,689 22,150 245,398 223,245 22,153
Letters of guarantee 1,062 1,026 36 1,118 1,081 37
Total 240,901 218,715 22,186 246,516 224,326 22,190

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 March 31, 2026, the Bank had 14 open positions (December 31, 2025: 13) 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 $1.0 billion (December 31, 2025: $1.1 billion) and are included in securities purchased under agreements to resell on the consolidated balance sheets.

As at March 31, 2026, the Bank had one open position (December 31, 2025: nil) 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 $132.3 million (December 31, 2025: nil).

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.

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
March 31, 2026 March 31, 2025
Lease costs
Operating lease costs 1,523 1,841
Short-term lease costs 370 295
Total net lease cost 1,893 2,136
Operating lease income 401 106
Other information for the period
Right-of-use assets related to new operating lease liabilities 766
Operating cash flows from operating leases 1,287 1,445
Other information at end of period March 31, 2026 December 31, 2025
Operating leases right-of-use assets (included in other assets on the balance sheets) 37,977 38,079
Operating lease liabilities (included in other liabilities on the balance sheets) 38,586 38,725
Weighted average remaining lease term for operating leases (in years) 11.42 11.53
Weighted average discount rate for operating leases 5.89 % 5.90 %

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 table summarizes the maturity analysis of the Bank's commitments for long-term leases as at December 31, 2025:
Year ending December 31 Operating Leases
2026 5,248
2027 5,408
2028 5,332
2029 4,691
2030 4,195
2031 & thereafter 17,106
Total commitments 41,980
Less: effect of discounting cash flows to their present value (3,394)
Operating lease liabilities 38,586

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 Channel Islands and UK segments have a managing director who reports to the Chairman & CEO. Within 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, 2025. 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 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 March 31, 2026 December 31, 2025
Bermuda 5,366,655 5,111,127
Cayman 4,311,125 4,425,113
Channel Islands and the UK 4,780,581 4,599,096
Other 73,139 70,731
Total assets before inter-segment eliminations 14,531,500 14,206,067
Less: inter-segment eliminations (106,742) (111,173)
Total 14,424,758 14,094,894

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 March 31, 2026 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 50,626 37,939 44,084 30 132,679 132,679
Interest income - Inter-segment 685 685 (685)
Interest income Total 50,626 38,624 44,084 30 133,364 (685) 132,679
Interest expense
Interest expense 7,864 7,375 24,156 39,395 39,395
Interest expense - Inter-segment 685 685 (685)
Interest expense Total 8,549 7,375 24,156 40,080 (685) 39,395
Net interest income
Net interest income 42,762 30,564 19,928 30 93,284 93,284
Net interest income - Inter-segment (685) 685
Net interest income Total 42,077 31,249 19,928 30 93,284 93,284
Non-interest income 26,099 19,510 11,284 12,748 69,641 (6,997) 62,644
Allowance for credit losses (2,092) (26) 670 (1,448) (1,448)
Net revenue before gains and losses 66,084 50,733 31,882 12,778 161,477 (6,997) 154,480
Gains and losses 4 4 4
Total net revenue 66,084 50,733 31,886 12,778 161,481 (6,997) 154,484
Expenses
Salaries and other employee benefits 18,530 6,781 12,102 7,621 45,034 45,034
Technology and communications 7,619 3,026 2,349 368 13,362 13,362
Non-income taxes 5,205 484 754 505 6,948 6,948
Professional and outside services 3,709 520 1,002 302 5,533 5,533
Property 1,684 687 1,469 666 4,506 4,506
Amortization of intangible assets 358 275 911 437 1,981 1,981
Depreciation 3,350 1,097 657 115 5,219 5,219
Income tax benefit (expense) 1,006 346 1,352 1,352
Other expenses 10,807 3,749 (776) 1,143 14,923 (6,997) 7,926
Expenses Total 51,262 16,619 19,474 11,503 98,858 (6,997) 91,861
Net income 14,822 34,114 12,412 1,275 62,623 62,623

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 March 31, 2025 Bermuda Cayman Channel Islands and the UK Other Total before eliminations Inter-segment eliminations Total
Interest income
Interest income 54,188 39,826 45,959 39 140,012 140,012
Interest income - Inter-segment 277 966 33 1,276 (1,276)
Interest income Total 54,465 40,792 45,992 39 141,288 (1,276) 140,012
Interest expense
Interest expense 11,802 10,301 28,582 50,685 50,685
Interest expense - Inter-segment 997 279 1,276 (1,276)
Interest expense Total 12,799 10,301 28,861 51,961 (1,276) 50,685
Net interest income
Net interest income 42,386 29,525 17,377 39 89,327 89,327
Net interest income - Inter-segment (720) 966 (246)
Net interest income Total 41,666 30,491 17,131 39 89,327 89,327
Non-interest income 22,960 19,605 11,030 10,841 64,436 (6,006) 58,430
Allowance for credit losses 2,877 (120) (2,378) 379 379
Net revenue before gains and losses 67,503 49,976 25,783 10,880 154,142 (6,006) 148,136
Gains and losses 22 3 25 25
Total net revenue 67,525 49,976 25,786 10,880 154,167 (6,006) 148,161
Expenses
Salaries and other employee benefits 19,193 7,901 11,450 6,984 45,528 45,528
Technology and communications 7,931 3,473 2,111 328 13,843 13,843
Non-income taxes 4,868 575 610 441 6,494 6,494
Professional and outside services 3,562 473 1,205 204 5,444 5,444
Property 2,345 788 1,801 620 5,554 5,554
Amortization of intangible assets 358 275 854 410 1,897 1,897
Depreciation 3,422 1,075 712 124 5,333 5,333
Income tax benefit (expense) 930 249 1,179 1,179
Other expenses 10,028 3,595 677 831 15,131 (6,006) 9,125
Expenses Total 51,707 18,155 20,350 10,191 100,403 (6,006) 94,397
Net income 15,818 31,821 5,436 689 53,764 53,764

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") agreements. 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 19: 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.

March 31, 2026 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 2 57,126 481 481
Fair value hedges Currency swaps 2 125,619 (1,266) (1,266)
Derivatives not formally designated as hedging instruments Currency swaps 74 1,578,252 17,444 (4,411) 13,033
Subtotal risk management derivatives 1,760,997 17,925 (5,677) 12,248
Client services derivatives Spot and forward foreign exchange 106 158,722 955 (728) 227
Total derivative instruments 1,919,719 18,880 (6,405) 12,475
December 31, 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 3 124,435 (923) (923)
Fair value hedges Currency swaps 2 127,685 339 (157) 182
Derivatives not formally designated as hedging instruments Currency swaps 59 1,434,912 4,891 (8,551) (3,660)
Subtotal risk management derivatives 1,687,032 5,230 (9,631) (4,401)
Client services derivatives Spot and forward foreign exchange 70 189,594 984 (786) 198
Total derivative instruments 1,876,626 6,214 (10,417) (4,203)

The nominal amount of derivatives designated as fair value hedging instruments equals the amortized cost of the AFS securities that are designated as being hedged for changes in foreign exchange rates.

In addition to the above, as at March 31, 2026 foreign denominated deposits of £219.7 million (December 31, 2025: £211.2 million); Nil (December 31, 2025: SGD0.1 million) and Nil (December 31, 2025: 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
March 31, 2026 Gross fair value of derivatives Cash collateral<br> received / paid Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps 18,880 (5,506) 13,374 (312) 13,062
Derivative liabilities
Spot and forward foreign exchange and currency swaps 6,405 (5,506) 899 (332) 567
Net positive fair value 12,475
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, 2025 Gross fair value of derivatives Cash collateral<br> received / paid Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps 6,214 (5,150) 1,064 (326) 738
Derivative liabilities
Spot and forward foreign exchange and currency swaps 10,417 (5,150) 5,267 (3,356) 1,911
Net negative fair value (4,203)

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
Derivative instrument Consolidated statements of operations line item March 31, 2026 March 31, 2025
Spot and forward foreign exchange Foreign exchange revenue 30 1
Currency swaps, not designated as hedge Foreign exchange revenue 16,694 (33,559)
Currency swaps - fair value hedges Foreign exchange revenue (1,449) 6,703
Total net gains (losses) recognized in net income 15,275 (26,855)
Three months ended
Derivative instrument Consolidated statements of comprehensive income line item March 31, 2026 March 31, 2025
Currency swaps - net investment hedge Unrealized net gains (losses) on translation of net investment in foreign operations 1,403 (233)
Total net gains (losses) recognized in comprehensive income 1,403 (233)

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, 2025.

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 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 March 31, 2026 and December 31, 2025.

There were no transfers between Level 1 and Level 2 or Level 2 and Level 3 during the three months ended March 31, 2026 and the year ended December 31, 2025.

March 31, 2026 December 31, 2025
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 1,356,964 1,366,493 2,723,457 1,342,083 1,340,388 2,682,471
Residential mortgage-backed securities 13,188 13,188 13,782 13,782
Total available-for-sale 1,356,964 1,379,681 2,736,645 1,342,083 1,354,170 2,696,253
Other assets - Derivatives 13,374 13,374 1,064 1,064
Financial liabilities
Other liabilities - Derivatives 899 899 5,267 5,267

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:
March 31, 2026 December 31, 2025
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 1,941,888 1,941,888 1,708,936 1,708,936
Securities purchased under agreements to resell Level 2 1,017,737 1,017,737 1,096,238 1,096,238
Short-term investments Level 1 912,430 912,430 756,543 756,543
Investments held-to-maturity Level 2 2,939,086 2,506,590 (432,496) 2,992,052 2,566,470 (425,582)
Loans, net of allowance for credit losses Level 2 4,394,051 4,377,456 (16,595) 4,382,411 4,367,439 (14,972)
Financial liabilities
Term deposits Level 2 3,805,311 3,808,393 (3,082) 3,941,581 3,944,728 (3,147)
Securities sold under agreements to repurchase Level 2 132,300 132,300

Note 15: 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 the expense.

No interest was capitalized during the three months ended March 31, 2026, and the year ended December 31, 2025.

Note 16: 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 three months ended March 31, 2026, the average number of outstanding awards of unvested common shares was 1.7 million (March 31, 2025: 1.8 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
March 31, 2026 March 31, 2025
Net income 62,623 53,764
Basic Earnings Per Share
Weighted average number of common shares issued 39,782 43,170
Weighted average number of common shares held as treasury stock (619)
Weighted average number of common shares (in thousands) 39,782 42,551
Basic Earnings Per Share 1.57 1.26
Diluted Earnings Per Share
Weighted average number of common shares 39,782 42,551
Net dilution impact related to awards of unvested common shares 1,099 1,041
Weighted average number of diluted common shares (in thousands) 40,881 43,592
Diluted Earnings Per Share 1.53 1.23

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 17: 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

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 March 31, 2026 and December 31, 2025.

Unvested Share Awards

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.

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 three months ended March 31, 2026 was $52.54 per share (December 31, 2025: $37.50 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 three months ended March 31, 2026, nil shares (December 31, 2025: 13,022 shares) were issued under the ESPP.

Changes in Outstanding ELTIP and EDIP awards (in thousands of shares transferable upon vesting)
Three months ended
March 31, 2026 March 31, 2025
EDIP ELTIP EDIP ELTIP
Outstanding at beginning of period 500 1,236 628 1,151
Granted 434 221 117 319
Vested (fair value in 2026: $26.2 million, 2025: $15.3 million ) (119) (376) (112) (268)
Outstanding at end of period 815 1,081 633 1,202
Share-based Compensation Cost Recognized in the Financial Statements
--- --- ---
Three months ended
March 31, 2026 March 31, 2025
EDIP and ELTIP 5,458 5,488
Share-based Compensation Cost Recognized in Net Income 5,458 5,488
Deduct: Fair value of awards withheld for employees' payroll tax purposes (303) (147)
Share-based Compensation Cost Recognized in Additional Paid-in Capital 5,155 5,341

The Bank of N.T. Butterfield & Son Limited

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

(In thousands of US dollars, unless otherwise stated)

Unrecognized Share-based Compensation Cost
March 31, 2026 December 31, 2025
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 27,454 4.95 6,573 1.52
ELTIP
Time vesting shares 0.00 8 0.12
Performance vesting shares 22,868 2.12 15,053 1.65
Total unrecognized expense 50,322 21,634

Note 18: 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 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.

On December 8, 2025, the Board approved a new common share repurchase program, authorizing the purchase of up to 3.0  million common shares through to December 31, 2026.

The table below presents information about common stock repurchases:

Three months ended
Common share repurchases March 31, 2026 March 31, 2025
Acquired number of shares (to the nearest 1) 827,327 1,094,727
Average cost per common share 51.29 37.78
Total cost (in US dollars) 42,433,574 41,357,779

Note 19: 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
Three months ended March 31, 2026 Pension Post-retirement<br> healthcare Subtotal -<br> employee<br>benefits plans Total AOCIL
Balance at beginning of period (19,772) (66,024) (88,287) (47,117) 17,045 (30,072) (204,155)
Other comprehensive income (loss), net of taxes (3,216) 1,805 (10,375) 685 (29) 656 (11,130)
Balance at end of period (22,988) (64,219) (98,662) (46,432) 17,016 (29,416) (215,285)
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
Three months ended March 31, 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 3,931 1,777 31,911 381 (20) 361 37,980
Balance at end of period (22,260) (72,142) (130,364) (48,901) 16,232 (32,669) (257,435)

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
Line item in the consolidated<br>statements of operations, if any March 31, 2026 March 31, 2025
Net unrealized gains (losses) on translation of net investment in foreign operations adjustments
Foreign currency translation adjustments N/A (9,761) 15,095
Gains (losses) on net investment hedge N/A 6,545 (11,164)
Net change (3,216) 3,931
Held-to-maturity investment adjustments
Amortization of net gains (losses) to net income Interest income on investments 1,805 1,777
Net change 1,805 1,777
Available-for-sale investment adjustments
Gross unrealized gains (losses) N/A (10,741) 32,849
Foreign currency translation adjustments of related balances N/A 366 (938)
Net change (10,375) 31,911
Employee benefit plans adjustments
Defined benefit pension plan
Amortization of net actuarial (gains) losses Non-service employee benefits expense 509 583
Amortization of prior service (credit) cost Non-service employee benefits expense 21
Change in deferred taxes N/A 20
Foreign currency translation adjustments of related balances N/A 155 (222)
Net change 685 381
Post-retirement healthcare plan
Amortization of net actuarial (gains) losses Non-service employee benefits expense (160) 131
Amortization of prior service (credit) cost Non-service employee benefits expense 131 (151)
Net change (29) (20)
Other comprehensive income (loss), net of taxes (11,130) 37,980

Note 20: 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 three months ended March 31, 2026, the Bank declared and paid cash dividends of $0.50 (March 31, 2025: $0.44) for each common share as of the related record dates.

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.

Regulatory Capital

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

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 March 31, 2026 and December 31, 2025. The following table sets forth the Bank's capital adequacy in accordance with the relevant Basel framework:

The Bank of N.T. Butterfield & Son Limited

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

(In thousands of US dollars, unless otherwise stated)

March 31, 2026 December 31, 2025
Actual Regulatory minimum Actual Regulatory minimum
Capital
CET 1 capital 1,109,498 N/A 1,102,302 N/A
Tier 1 capital 1,109,498 N/A 1,102,302 N/A
Tier 2 capital 5,809 N/A 6,189 N/A
Total capital 1,115,306 N/A 1,108,492 N/A
Risk Weighted Assets 4,139,354 N/A 3,991,389 N/A
Leverage Ratio Exposure Measure 14,859,286 N/A 14,520,704 N/A
Capital Ratios (%)
CET 1 capital 26.8 % 10.0 % 27.6 % 10.0 %
Tier 1 capital 26.8 % 11.5 % 27.6 % 11.5 %
Total capital 26.9 % 13.5 % 27.8 % 13.5 %
Leverage ratio 7.5 % 5.0 % 7.6 % 5.0 %

Note 21: Business combinations

Rawlinson & Hunter Guernsey Limited Acquisition

On February 19, 2026, the Bank announced that it has entered into an agreement to acquire all the outstanding shares of Rawlinson & Hunter Limited (“R&H”), the independently owned Guernsey member firm of the Rawlinson & Hunter International Network. The acquisition will further expand the Bank’s Channel Islands presence and strengthen its trust and fiduciary offering with the addition of approximately $9.0 billion of Assets Under Administration.

The transaction closed on April 15, 2026, and management is in the process of allocating the purchase price to the various assets acquired and liabilities assumed (including intangible assets and goodwill which are expected to receive the major part of the allocated purchase price).

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 March 31, 2026 and December 31, 2025. 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, 2024 19,637
Net loans issued (repaid) during the year (256)
Effect of changes in the composition of related parties (15,163)
Balance at December 31, 2025 4,218
Net loans issued (repaid) during period (124)
Balance at March 31, 2026 4,094
Consolidated balance sheets March 31, 2026 December 31, 2025
--- --- ---
Deposits 74,031 92,182
Three months ended
--- --- ---
Consolidated statements of operations March 31, 2026 March 31, 2025
Interest and fees on loans 41 308
Total non-interest expense 86 24
Other non-interest income 75 92

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 March 31, 2026 December 31, 2025
Loans 8,582 8,884
Deposits 300 545
Accrued interest and other liabilities 226 175
Three months ended
--- --- ---
Consolidated statements of operations March 31, 2026 March 31, 2025
Interest and fees on loans 168 179
Total non-interest expense 482 211
Other non-interest income 64 63

Investments

As at March 31, 2026, 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 March 31, 2026 December 31, 2025
Loans 1,999
Deposits 16,171 9,365
Accrued interest and other assets 450 461 Three months ended
--- --- ---
Consolidated statements of operations March 31, 2026 March 31, 2025
Asset management 3,389 2,736
Custody and other administration services 410 351
Other non-interest income 167
Interest and fees on loans 444

Note 23: Subsequent events

On April 28, 2026, the Board of Directors declared an interim dividend of $0.50 per common share to be paid on May 27, 2026 to shareholders of record on May 13, 2026.

30

a1q2026earningsdeck

First Quarter 2026 The Bank of N.T. Butterfield & Son Limited Earnings Presentation April 29, 2026


2 Forward-Looking Statements Forward-Looking Statements: Certain of the statements made in this presentation 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, identify and enter into acquisitions or other strategic transactions and the timing and anticipated benefits thereof (including with respect to the acquisition of R&H Guernsey), and involve known and unknown risks, uncertainties and other factors, which may be beyond our control. These risks and uncertainties 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 Butterfield’s ability to realize the anticipated benefits of the acquisition of R&H Guernsey in the expected time-frames or at all; Butterfield’s ability to successfully integrate R&H Guernsey’s operations into those of Butterfield; the risk that such integration may be more difficult, time-consuming or costly than expected; the risk that revenues following the acquisition of R&H Guernsey may be lower than expected; the risk that operating costs, customer loss and business disruption (including, without limitation, difficulties in maintaining relationships with employees, customers, clients or suppliers) may be greater than expected following the acquisition; risks associated with the disruption of management’s attention from ongoing business operations due to the acquisition; and the outcome of any legal proceedings that may be instituted against Butterfield or R&H Guernsey. Other factors that may impact Butterfield’s future results, performance or achievements include worldwide economic conditions (including economic growth and general business conditions) and fluctuations of interest rates, inflation, a decline in Bermuda’s sovereign credit rating, any sudden liquidity crisis, the successful entry into, completion and integration of acquisitions or the realization of the anticipated benefits of such acquisitions, success in business retention (including the retention of relationships associated with our acquisition of R&H Guernsey), 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 presentation 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 • First Quarter 2026 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 Financials


5 First Quarter 2026 Highlights Net Income (In US$ millions) Return on Equity (In US$ millions) vs. Q4 2025 vs. Q1 2025 Q1 2026 $ % $ % Net Interest Income $ 93.3 $ 0.7 $ 4.0 Non-Interest Income 62.6 (3.6) 4.2 Provision for Credit Losses (1.4) (1.6) (1.8) Non-Interest Expenses* (91.9) 3.4 2.5 Net Income $ 62.6 $ (1.2) (1.8) % $ 8.9 16.5 % Non-Core Items** 0.6 0.5 (2.4) Core Net Income** $ 63.2 $ (0.6) (1.0) % $ 6.5 11.4 % • Net income of $62.6 million, or $1.53 per share • Core net income** of $63.2 million, or $1.55 per share • Return on average common equity of 22.1%; core return on average tangible common equity** of 24.1% • Net Interest Margin of 2.75%, cost of deposits of 1.24% • Quarterly cash dividend of $0.50 per common share • Repurchases of 0.8 million shares at a total cost of $42.4 million • Closed previously announced acquisition of Rawlinson & Hunter Guernsey on April 15, 2026 * Includes income taxes ** See the Appendix for a reconciliation of non-GAAP measures $53.8 $53.3 $61.1 $63.8 $62.6 $56.7 $53.7 $63.3 $63.8 $63.2 Net income Core Net Income** Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 20.9% 20.3% 22.5% 22.7% 22.1% 24.2% 22.3% 25.5% 24.6% 24.1% Return on Equity Core Return on Average Tangible Common Equity** Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026


6 Net Interest Income before Provision for Credit Losses -Trend (In US$ millions) $89.3 $92.6 $93.3 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Net Interest Margin & Yields Income Statement Net Interest Income • Net interest income (“NII”) and net interest margin (“NIM”) are higher compared to the prior quarter due to: ◦ lower cost of deposits as central banks have reduced market interest rates; ◦ increased investment yields with assets deployed into higher yielding available-for-sale investment securities; and ◦ partially offset by lower loan and treasury yields following the aforementioned rate cuts, coupled with lower day count in the first quarter of 2026 • Average investment volumes continue to increase as assets were deployed into higher yielding available-for-sale investment securities • Average loan volumes were relatively flat compared to the prior quarter (In US$ millions) Q1 2026 vs. Q4 2025 Avg. Balance Yield Avg. Balance Yield Cash, S/T Inv. & Repos $ 3,646.1 3.35 % $ 57.4 (0.09) % Investments 5,714.1 2.78 % 28.0 0.06 % Loans (net) 4,399.8 5.84 % 3.5 (0.17) % Interest Earning Assets 13,760.0 3.91 % 88.9 (0.06) % Interest Bearing Liabilities 10,150.5 (1.57) % 24.3 0.16 % Net Interest Margin 2.75 % 0.06 %


7 Non-Interest Income Trend (In US$ millions)(In US$ millions) Q1 2026 vs. Q4 2025 Asset management $ 10.4 $ — Banking 16.3 (3.5) Foreign exchange revenue 14.6 0.9 Trust 16.7 (0.9) Custody and other 3.7 (0.3) Other 1.0 0.2 Total Non-Interest Income $ 62.6 $ (3.6) $58.4 $66.3 $62.6 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 • Total non-interest income decreased by $3.6 million versus the prior quarter, primarily due to: ◦ lower banking fees due to prior period seasonality; ◦ a decrease in trust revenue driven by reduced time-based and special fees, and ◦ partially offset by higher foreign exchange revenue driven by volume • The fee income ratio was 40.6% in the first quarter of 2026 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. Q4 2025 (In US$ millions) Q1 2026 $ % Salaries & Benefits** $ 46.1 $ (0.6) (1.3) % Technology & Comm. 15.4 (1.2) (7.4) % Professional & O/S Services 5.0 (1.4) (21.9) % Property 7.7 (0.8) (9.0) % Indirect Taxes 6.9 1.5 27.9 % Marketing 1.8 (0.2) (9.9) % Intangible Amortization 2.0 (0.2) (8.2) % Other 5.1 (0.3) (5.4) % Total Core Non-Interest Expenses* $ 89.9 $ (3.1) (3.4) % Non-Core Expenses* 0.6 0.5 >100% Non-Interest Expenses $ 90.5 $ (2.6) (2.8) % $90.3 $93.1 $89.9 59.8% 57.2% 56.4% Core Efficiency Ratio* Core Non-Interest Expenses* Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 • Core non-interest expenses* decreased compared to the prior quarter with the following underlying movements: ◦ lower professional and outside services fees for project work; ◦ lower technology and communications expenses; and ◦ partially offset by an increase in payroll taxes related to the annual vesting of share-based compensation • Core efficiency ratio* of 56.4% 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 non-GAAP measures ** Includes Non-Service Employee Benefits Expense Income Statement Non-Interest Expenses


9 Balance Sheet Total Assets (In US$ billions) • Period end deposit balances increased to $12.9 billion from $12.7 billion at the prior year end • Average deposit balances remained flat at $12.8 billion in Q1 2026 compared to the prior year end • Butterfield’s balance sheet remained low in risk density (risk weighted assets/total assets) at 28.7% vs Q4 2025 (In US$ millions) Q1 2026 Q4 2025 % Cash and cash equivalents $ 1,942 $ 1,709 14 % Reverse Repos & S/T Investments 1,930 1,853 4 % Investments 5,676 5,688 — % Loans (net) 4,394 4,382 — % Other Assets 483 462 5 % Total Assets $ 14,425 $ 14,095 2 % Int. Bearing Deposits $ 10,246 $ 9,997 3 % Non-Int. Bearing Deposits 2,636 2,701 (2) % Other Liabilities 407 255 60 % Shareholders’ Equity 1,136 1,142 (1) % Total Liab. & Equity $ 14,425 $ 14,095 2 % $14.0 $14.1 $14.4 $5.4 $5.7 $5.7 $4.5 $4.4 $4.4 Total assets Investments Loans Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 $12.6 $12.7 $12.9 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Total Deposits (In US$ billions)


10 Asset Quality Non-Accrual Loans (In US$ millions) $103.8 $91.3 $90.2 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Res Mtg 70.7% Consumer 4.4% Comm’l R/E 13.0% Other Comm’l 5.2% Government 6.6% Loan Distribution 0.00% 0.00% 0.00% Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 0.00% 0.05% 0.10% 0.15% 0.20% Net Charge-Off Ratio $4.4 billion $5.7 billion Investment Portfolio Rating Distribution • 71% 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 $26.3 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 0.2% AA 99.8%


11 Interest Rate Sensitivity Interest Rate SensitivityAverage Balance - Balance Sheet Average Balances (US$Mil) Weighted Average Life Q1 2026 vs. Q4 2025 Duration vs. Q4 2025 Cash & Reverse Repos & S/T Invest. $ 3,646.1 $ 57.4 0.2 0.1 N/A AFS 2,742.0 84.9 2.9 — 3.4 HTM** 2,972.1 (56.9) 7.0 — 8.0 Total $ 9,360.2 $ 85.4 (5.2)% 4.0% 8.0% (2.1)% 1.8% 3.4% NTB US Peer Median * -100bps +100bps +200bps • Total investment portfolio duration decreased to 4.8 years in line with the fixed portfolio maturing down, partially offset by forward rates rising • Interest rate sensitivity has increased against the prior quarter, driven by changes in asset composition with an increase in short duration assets • Net unrealized losses on AFS securities increased to $99.7 million as at March 31, 2026, compared with net unrealized losses of $89.4 million as at the end of the fourth quarter of 2025 • Based on implied forward rates, the AFS OCI is expected to further improve by 20% in the next 12 months and 47% in the next 24 months * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. Q4 2025 comparative data is used as Q1 2026 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 0.6% compared to the prior quarter at $26.56 Regulatory Capital - Total Capital Ratio 26.9% 13.5% 15.5% Butterfield Current BMA Minimum US Peer Median** *** See the Appendix for a reconciliation of non-GAAP measures 8.5% 12.8% 7.3% 12.3% 1.2% 0.5% TCE/TA TCE/TA Ex Cash Butterfield - Current US Peer Median** $86.2 $79.9 $77.7 $20.0 $88.6 $155.3 $146.7 $42.4 Combined Payout Ratio Share Repurchases Cash Dividend 2023 2024 2025 Q1 2026 Combined Payout Ratio * * 2026 is based on year to date cash dividends, share repurchases and net income ** Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. Q4 2025 comparative data is used as Q1 2026 peer information was not widely available at time of publication. 78% 109% 97% 100%


13 Appendix


14 Group (US$ Billions) Bermuda (US$ Billions) Deposit Composition by Segment Cayman (US$ Billions) Channel Islands (US$ Billions) 20% 21% 21% 49% 48% 50% 31% 31% 30% $12.6 $12.7 $12.9 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 35% 35% 33% 45% 44% 45% 20% 21% 22% $4.5 $4.5 $4.6 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 25% 27% 27% 47% 46% 50% 28% 27% 23% $3.9 $4.1 $4.0 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 1% 1% 1% 54% 53% 55% 45% 46% 44% $4.2 $4.2 $4.2 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026


15 Residential Mortgage Loans (US$ Billions) Commercial Loans (US$ Billions) Loans Loan Portfolio Composition by Originating Segment (US$ Billions) Fixed vs. Floating Rate Loans (US$ Billions) 29% 27% 26% 23% 19% 20% 49% 54% 54% $3.6 $3.1 $3.1 Bermuda Cayman UK and Channel Islands Total Residential Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 37% 33% 32% 24% 24% 24% 39% 43% 44% $5.1 $4.4 $4.4 Bermuda Cayman UK and Channel Islands Total Loans Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 43% 45% 44% 57% 55% 56% $5.1 $4.4 $4.4 Fixed Floating Total Loans Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 24% 18% 16% 9% 6% 5% 21% 25% 27% 46% 51% 52% $1.4 $1.1 $1.1 Commercial and Industrial Commercial Overdrafts Government Commercial Real Estate Total Commercial Loans Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026


16 Balance Sheet Movements Deposit Composition by Currency (US$ billions)Deposit Movements (US$ millions) $+180 Change vs Q4 2025 Loan Movements (US$ millions) Loan Composition by Currency (US$ billions) +240 -60 $+10 Change vs Q4 2025 Volume FX Translation 71% 71% 72% 21% 23% 22% 8% 6% 6% $12.6 $12.7 $12.9 USD / USD Pegged GBP Other Total deposits Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 59% 58% 57% 40% 42% 43% 1% —% —% $4.5 $4.4 $4.4 USD / USD Pegged GBP Other Total loans Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 +40 -30


17 Loan-to-Deposit Ratio Balance Sheet Asset Mix Liquidity: Cash & Cash Equivalents** to Total Assets 36% 36% 35% 35% 34% 71% 71% 70% 70% NTB US Peer Median* Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 26% 26% 25% 25% 27% 5% 5% 5% 6% NTB US Peer Median* Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 • 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. Q1 2026 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) 2026 2025 2024 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Assets Cash and cash equivalents $ 1,942 $ 1,709 $ 1,501 $ 1,450 $ 2,097 $ 1,998 $ 2,067 $ 2,390 $ 1,746 Reverse Repos & S/T Investments 1,930 1,853 1,987 2,247 1,498 1,785 1,750 1,289 1,480 Investments 5,676 5,688 5,675 5,458 5,448 5,513 5,468 5,168 5,168 Loans, Net 4,394 4,382 4,468 4,578 4,518 4,474 4,648 4,585 4,644 Other Assets 483 462 456 453 458 462 441 506 490 Total Assets $ 14,425 $ 14,095 $ 14,086 $ 14,185 $ 14,020 $ 14,231 $ 14,373 $ 13,939 $ 13,528 Liabilities and Equity Total Deposits $ 12,882 $ 12,698 $ 12,721 $ 12,838 $ 12,608 $ 12,746 $ 12,738 $ 12,548 $ 12,131 Long-Term Debt — — — — 99 99 99 99 99 Other Liabilities 407 255 259 278 256 366 472 293 304 Total Liabilities $ 13,289 $ 12,953 $ 12,980 $ 13,116 $ 12,962 $ 13,211 $ 13,309 $ 12,940 $ 12,533 Common Equity $ 1,136 $ 1,142 $ 1,106 $ 1,069 $ 1,058 $ 1,021 $ 1,064 $ 999 $ 995 Total Equity $ 1,136 $ 1,142 $ 1,106 $ 1,069 $ 1,058 $ 1,021 $ 1,064 $ 999 $ 995 Total Liabilities and Equity $ 14,425 $ 14,095 $ 14,086 $ 14,185 $ 14,020 $ 14,231 $ 14,373 $ 13,939 $ 13,528 Key Metrics CET 1 Ratio 26.8 % 27.6 % 26.9 % 26.0 % 25.2 % 23.5 % 22.1 % 22.5 % 22.6 % Total Tier 1 Capital Ratio 26.8 % 27.6 % 26.9 % 26.0 % 25.2 % 23.5 % 22.1 % 22.5 % 22.6 % Total Capital Ratio 26.9 % 27.8 % 27.0 % 26.2 % 27.7 % 25.8 % 24.3 % 24.8 % 24.9 % Leverage ratio 7.5 % 7.6 % 7.5 % 7.3 % 7.4 % 7.3 % 7.1 % 7.3 % 7.5 % Risk-Weighted Assets (in $ millions) 4,139 3,991 4,014 4,063 4,207 4,539 4,776 4,668 4,648 Risk-Weighted Assets / total assets 28.7 % 28.3 % 28.5 % 28.6 % 30.0 % 31.9 % 33.2 % 33.5 % 34.4 % Tangible common equity ratio 7.3 % 7.5 % 7.3 % 6.9 % 6.9 % 6.6 % 6.8 % 6.5 % 6.7 % Book value per common share (in $) 28.68 28.58 27.25 26.01 25.07 23.78 24.09 22.12 21.53 Tangible book value per share (in $) 26.56 26.41 25.06 23.77 22.94 21.70 21.90 20.03 19.45 Non-accrual loans/gross loans 2.0 % 2.1 % 2.0 % 2.0 % 2.3 % 1.7 % 1.9 % 1.5 % 1.3 % Non-performing assets/total assets 1.2 % 0.8 % 1.0 % 0.8 % 1.1 % 1.1 % 1.5 % 1.1 % 1.2 % Allowance for credit losses/total loans 0.6 % 0.6 % 0.6 % 0.6 % 0.6 % 0.6 % 0.6 % 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) Q1 2026 Q4 2025 Q1 2025 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 $ 3,646.1 $ 30.1 3.35 % $ 3,588.7 $ 31.1 3.44 % $ 3,519.3 $ 34.5 3.98 % Investment in securities 5,714.1 39.2 2.78 % 5,686.1 39.0 2.72 % 5,462.6 36.1 2.68 % AFS 2,742.0 22.3 3.31 % 2,657.1 21.9 3.27 % 2,247.5 17.8 3.21 % HTM 2,972.1 16.8 2.30 % 3,029.0 17.1 2.24 % 3,215.1 18.3 2.31 % Loans 4,399.8 63.4 5.84 % 4,396.3 66.6 6.01 % 4,455.3 69.4 6.32 % Commercial 1,171.2 16.6 5.75 % 1,188.6 18.3 6.11 % 1,320.3 20.6 6.32 % Consumer 3,228.6 46.8 5.88 % 3,207.7 48.3 5.98 % 3,135.0 48.8 6.32 % Total interest earning assets 13,760.0 132.7 3.91 % 13,671.1 136.8 3.97 % 13,437.3 140.0 4.23 % Other assets 455.9 444.9 430.7 Total assets $ 14,215.8 $ 14,116.0 $ 13,868.0 Liabilities Deposits - interest bearing $ 10,143.9 $ (39.3) (1.57) % $ 10,125.1 $ (44.1) (1.73) % $ 9,853.4 $ (49.1) (2.02) % Securities sold under agreement to repurchase 6.6 (0.1) (3.99) % 1.2 — (4.53) % 16.3 (0.2) (4.42) % Long-term debt — — — % — — — % 98.7 (1.4) (5.63) % Interest bearing liabilities 10,150.5 (39.4) (1.57) % 10,126.3 (44.2) (1.73) % 9,968.5 (50.7) (2.06) % Non-interest bearing customer deposits 2,684.5 2,645.9 2,622.4 Other liabilities 249.5 238.2 263.6 Total liabilities $ 13,084.5 $ 13,010.3 $ 12,854.4 Shareholders’ equity 1,131.4 1,105.6 1,013.5 Total liabilities and shareholders’ equity $ 14,215.8 $ 14,116.0 $ 13,868.0 Non-interest bearing funds net of non- interest earning assets (free balance) $ 3,609.5 $ 3,544.8 $ 3,468.8 Net interest margin $ 93.3 2.75 % $ 92.6 2.69 % $ 89.3 2.70 % Average Balance Sheet Trends


20 (in millions of US Dollars, unless otherwise indicated) 2026 2025 2024 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Net Interest Income $ 93.3 $ 92.6 $ 92.7 $ 89.4 $ 89.3 $ 88.6 $ 88.1 $ 87.4 $ 87.1 Non-Interest Income 62.6 66.3 61.2 57.0 58.4 63.2 56.0 55.6 55.1 Prov. for Credit (Losses) Recovery (1.4) 0.2 (0.6) (0.2) 0.4 (0.3) (1.3) (0.5) 0.4 Non-Interest Expenses* 91.9 95.3 92.2 93.0 94.4 92.2 90.0 92.1 89.4 Other Gains (Losses) — — (0.1) 0.1 — 0.1 (0.1) 0.1 0.2 Net Income $ 62.6 $ 63.8 $ 61.1 $ 53.3 $ 53.8 $ 59.6 $ 52.7 $ 50.6 $ 53.4 Non-Core Items** $ 0.6 $ — $ 2.2 $ 0.4 $ 2.9 $ — $ 0.1 $ 0.8 $ 1.6 Core Net Income** $ 63.2 $ 63.8 $ 63.3 $ 53.7 $ 56.7 $ 59.6 $ 52.8 $ 51.4 $ 55.0 Key Metrics Loan Yield 5.84 % 6.01 % 6.24 % 6.31 % 6.32 % 6.43 % 6.64 % 6.65 % 6.58 % Securities Yield 2.78 2.72 2.67 2.67 2.68 2.51 2.39 2.30 2.23 Cost of Deposits 1.24 1.37 1.47 1.56 1.60 1.73 1.91 1.89 1.78 Net Interest Margin 2.75 2.69 2.73 2.64 2.70 2.61 2.61 2.64 2.68 Core Efficiency Ratio** 56.4 57.2 56.2 61.1 59.8 58.2 60.2 61.8 59.8 Core ROATCE** 24.1 24.6 25.5 22.3 24.2 25.2 22.5 23.3 24.5 Fee Income Ratio 40.6 41.7 39.9 39.0 39.4 41.7 39.2 39.0 38.6 Fully Diluted Share Count (in millions of common shares) 40.9 41.4 41.9 42.7 43.6 44.6 45.6 46.3 47.2 * 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) 2026 2025 2024 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Non-Interest Income Asset Management $ 10.4 $ 10.4 $ 9.9 $ 9.4 $ 9.5 $ 9.1 $ 9.5 $ 8.9 $ 8.8 Banking 16.3 19.7 17.8 14.7 15.1 21.2 14.4 13.8 14.3 FX Revenue 14.6 13.7 13.2 12.0 13.7 13.2 12.2 12.6 13.2 Trust 16.7 17.6 16.2 16.4 15.6 15.1 15.8 15.4 15.0 Custody & Other Admin. 3.7 4.0 3.1 3.2 3.5 3.6 3.5 3.4 3.3 Other 1.0 0.8 0.8 1.4 1.0 0.9 0.7 1.6 0.4 Total Non-Interest Income $ 62.6 $ 66.3 $ 61.2 $ 57.0 $ 58.4 $ 63.2 $ 56.0 $ 55.6 $ 55.1 Non-Interest Expense Salaries & Benefits* $ 46.1 $ 46.7 $ 47.9 $ 46.7 $ 46.9 $ 44.7 $ 44.7 $ 44.8 $ 43.8 Technology & Comm. 15.4 16.7 16.0 16.3 16.0 16.6 16.5 16.9 16.1 Professional & O/S Services 5.5 6.4 5.0 5.2 5.4 5.7 4.8 6.7 5.5 Property 7.7 8.4 8.2 8.8 8.7 8.6 8.6 8.2 8.7 Indirect Taxes 6.9 5.4 5.5 5.8 6.5 5.3 5.5 5.6 6.3 Marketing 1.8 1.9 1.4 1.7 1.8 2.4 1.3 1.6 1.3 Intangible Amortization 2.0 2.2 2.0 2.0 1.9 2.2 1.9 1.9 1.9 Other 5.1 5.4 4.8 5.3 6.0 5.2 5.6 5.5 4.9 Total Non-Interest Expense $ 90.5 $ 93.1 $ 90.8 $ 91.8 $ 93.2 $ 90.6 $ 88.8 $ 91.1 $ 88.5 Income Taxes 1.4 2.2 1.4 1.2 1.2 1.5 1.2 0.9 0.9 Total Expense incld. Taxes $ 91.9 $ 95.3 $ 92.2 $ 93.0 $ 94.4 $ 92.2 $ 90.0 $ 92.1 $ 89.4 *Includes non-service employee benefits Non-Interest Income & Expense Trends


22 (in millions of US Dollars, unless otherwise indicated) 2026 2025 2024 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Salaries & Benefits* $ 46.1 $ 46.7 $ 45.8 $ 46.4 $ 44.1 $ 44.7 $ 44.7 $ 44.7 $ 42.5 Technology & Comm. 15.4 16.7 16.0 16.3 16.0 16.6 16.5 16.9 16.1 Professional & O/S Services 5.0 6.4 4.9 5.1 5.4 5.7 4.7 6.1 5.2 Property 7.7 8.4 8.2 8.8 8.7 8.6 8.6 8.2 8.7 Indirect Taxes 6.9 5.4 5.4 5.8 6.3 5.3 5.5 5.5 6.3 Marketing 1.8 1.9 1.4 1.7 1.8 2.4 1.3 1.6 1.3 Intangible Amortization 2.0 2.2 2.0 2.0 1.9 2.2 1.9 1.9 1.9 Other 5.1 5.4 4.8 5.3 6.0 5.2 5.6 5.5 4.9 Total Core Non-Interest Expense** $ 89.9 $ 93.1 $ 88.5 $ 91.4 $ 90.3 $ 90.6 $ 88.6 $ 90.3 $ 86.9 Income Taxes 1.4 2.2 1.4 1.2 1.2 1.5 1.2 0.9 0.9 Total Core Expense incld. Taxes** $ 91.3 $ 95.3 $ 89.9 $ 92.6 $ 91.5 $ 92.1 $ 89.8 $ 91.2 $ 87.8 * 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) 2026 2025 Q1 Q4 Q3 Q2 Q1 Net income A $ 62.6 $ 63.8 $ 61.1 $ 53.3 $ 53.8 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 Business acquisition costs 0.6 — — — — Total non-core expenses C $ 0.6 $ — $ 2.2 $ 0.4 $ 2.9 Total non-core (gains), losses and expenses D=B+C 0.6 — 2.2 0.4 2.9 Core net income to common shareholders E=A+D $ 63.2 $ 63.8 $ 63.3 $ 53.7 $ 56.7 Average shareholders' equity 1,148.0 1,117.3 1,076.2 1,055.0 1,041.3 Average common equity F 1,148.0 1,117.3 1,076.2 1,055.0 1,041.3 Less: average goodwill and intangible assets (86.0) (87.2) (90.0) (91.2) (89.2) Average tangible common equity G 1,062.0 1,030.1 986.2 963.8 952.1 Return on equity A/F 22.1 % 22.7 % 22.5 % 20.3 % 20.9 % Core return on average tangible common equity E/G 24.1 % 24.6 % 25.5 % 22.3 % 24.2 % Core earnings per common share fully diluted Adjusted weighted average number of diluted common shares (in thousands) H 40.9 41.4 41.9 42.7 43.6 Earnings per common share fully diluted A/H 1.53 1.54 1.46 1.25 1.23 Non-core items per share D/H 0.02 — 0.05 0.01 0.07 Core earnings per common share fully diluted E/H 1.55 1.54 1.51 1.26 1.30 Core return on average tangible assets Total average assets I $ 14,272.0 $ 14,173.2 $ 14,016.6 $ 14,111.5 $ 13,993.7 Less: average goodwill and intangible assets (86.0) (87.2) (90.0) (91.2) (89.2) Average tangible assets J $ 14,186.1 $ 14,085.9 $ 13,926.6 $ 14,020.3 $ 13,904.5 Return on average assets A/I 1.8 % 1.8 % 1.7 % 1.5 % 1.6 % Core return on average tangible assets E/J 1.8 % 1.8 % 1.8 % 1.5 % 1.7 % Non-GAAP Reconciliation


24 (in millions of US Dollars, unless otherwise indicated) 2026 2025 Q1 Q4 Q3 Q2 Q1 Tangible equity to tangible assets Shareholders' equity K $ 1,136.1 $ 1,141.9 $ 1,106.0 $ 1,069.1 $ 1,057.8 Less: goodwill and intangible assets (83.9) (86.8) (88.8) (92.2) (89.7) Tangible common equity L 1,052.2 1,055.1 1,017.1 977.0 968.1 Total assets M 14,424.8 14,094.9 14,086.4 14,185.0 14,019.8 Less: goodwill and intangible assets (83.9) (86.8) (88.8) (92.2) (89.7) Tangible assets N $ 14,340.8 $ 14,008.1 $ 13,997.5 $ 14,092.8 $ 13,930.1 Tangible common equity to tangible assets L/N 7.3 % 7.5 % 7.3 % 6.9 % 6.9 % Tangible book value per share Basic participating shares outstanding (in millions) O 39.6 39.9 40.6 41.1 42.2 Tangible book value per common share L/O 26.56 26.41 25.06 23.77 22.94 Efficiency ratio Non-interest expenses $ 90.5 $ 93.1 $ 90.8 $ 91.8 $ 93.2 Less: Amortization of intangibles (2.0) (2.2) (2.0) (2.0) (1.9) Non-interest expenses before amortization of intangibles P 88.5 90.9 88.8 89.8 91.3 Non-interest income 62.6 66.3 61.2 57.0 58.4 Net interest income before provision for credit losses 93.3 92.6 92.7 89.4 89.3 Net revenue before provision for credit losses and other gains/losses Q $ 155.9 $ 158.9 $ 153.9 $ 146.4 $ 147.8 Efficiency ratio P/Q 56.8 % 57.2 % 57.7 % 61.3 % 61.8 % Core efficiency ratio Non-interest expenses $ 90.5 $ 93.1 $ 90.8 $ 91.8 $ 93.2 Less: non-core expenses (C) (0.6) — (2.2) (0.4) (2.9) Less: amortization of intangibles (2.0) (2.2) (2.0) (2.0) (1.9) Core non-interest expenses before amortization of intangibles R 88.0 90.9 86.6 89.4 88.4 Net revenue before provision for credit losses and other gains/losses Q 155.9 158.9 153.9 146.4 147.8 Core efficiency ratio R/Q 56.4 % 57.2 % 56.2 % 61.1 % 59.8 % 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)