PO Box 10, Manitowoc, WI 54221-0010 For further information, contact: Kevin M LeMahieu, Chief Financial Officer Phone: (920) 652-3100 / klemahieu@bankfirst.com

NEWS release

[For Immediate Release]

Bank First Announces Net Income for the Third Quarter of 2026

MANITOWOC, Wis., October 20, 2026 -- Bank First Corporation (NASDAQ: BFC) (“Bank First” or the “Bank”), the holding company for Bank First, N.A., reported net income of $23.8 million, or $2.15 per share, for the third quarter of 2026 (“26Q3”), compared with net income of $18.0 million, or $1.83 per share, for the prior-year third quarter (“25Q3”). For the nine months ended September 30, 2026 (“26YTD”), Bank First earned $68.5 million, or $6.14 per share, compared to $53.1 million, or $5.36 per share for the same period in 2025 (“25YTD”). After removing the impact of expenses related to the acquisitions of Centre 1 Bancorp, Inc. (“Centre”), and PSB Holdings, Inc. (“Peoples”), as well as one-time net gains on the sale of certain assets, the Bank reported adjusted net income (non-GAAP) of $26.1 million, or $2.35 per share, and $78.5 million, or $7.04 per share, for 26Q3 and 26YTD, respectively. Adjusted net income (non-GAAP) was $18.8 million, or $1.91 per share, and $53.8 million, or $5.42 per share, for 25Q3 and 25YTD, respectively.

“During the most recent quarter, we made meaningful progress toward our planned December 4, 2026 acquisition of Peoples while adding experienced leaders to support our continued organic growth,” stated Mike Molepske, Chairman and CEO of Bank First. “At a recent cultural orientation meeting, we were pleased to see the enthusiasm and engagement of Peoples employees who will be joining Bank First. Their warm welcome reflects the positive response we have also received from customers and shareholders of Peoples, who recognize the opportunities this merger will create through expanded retail products, enhanced trust and wealth management services, more sophisticated treasury management tools, and greater lending capacity.”

Operating Results

The acquisition of Centre, an institution with $1.48 billion in assets at closing on January 1, 2026, increased total assets of Bank First by 33%. The added operating scale from this transaction significantly impacted Bank First’s results for 26Q3 and 26YTD, as well as comparability to 25Q3 and 25YTD.

Net interest income (“NII”) during 26Q3 was $55.2 million, up $0.2 million from the previous quarter (“26Q2”) and up $17.0 million from 25Q3. The impact of net accretion and amortization of purchase accounting related to interest-bearing assets and liabilities from Centre and past acquisitions (“purchase accounting”) increased NII by $2.2 million, or $0.16 per share after tax, during 26Q3, compared to $3.6 million, or $0.25 per share after tax, during 26Q2 and $0.7 million, or $0.06 per share after tax, during 25Q3.

Net interest margin (“NIM”) was 4.07% for 26Q3, compared to 4.13% for 26Q2 and 3.88% for 25Q3. NII from purchase accounting increased NIM by 0.16%, 0.27% and 0.07% for each of these periods, respectively. After removing the impact of purchase accounting, each sequential quarter of 2026 has exhibited higher yields on interest-earning assets (5.35% for the first quarter of 2026 (“26Q1”), 5.39% for 26Q2, 5.42% for 26Q3), lower crediting rates on interest-bearing liabilities (2.38% for 26Q1, 2.29% for 26Q2, 2.26% for 26Q3), and higher overall NIM (3.76% for 26Q1, 3.86% for 26Q2, 3.91% for 26Q3).

Bank First recorded a provision for credit losses totaling $0.8 million in 26Q3, slightly higher than the $0.7 million provision recorded during the 25Q3. The Bank did not record a provision for credit losses during 26Q2. Accounting entries related to the Centre acquisition added $12.8 million to the allowance for credit losses on January 1, 2026. The lack of provision expense during the first half of 2026 was due to a slight contraction in the Bank’s loan portfolio as loan production in legacy markets was offset by contraction in the Bank’s new Stateline region (formerly Centre), as the Bank transitioned out of certain acquired loans that were not consistent with Bank First’s lending philosophy. The provision recorded during 26Q3 was the result of growth in the Bank’s loan portfolio, as detailed later in this release.

Noninterest income was $10.1 million for 26Q3, compared to $10.0 million for 26Q2 and $6.0 million for 25Q3. Trust and Wealth Management income, a new business line for Bank First resulting from the Centre acquisition, remained a consistently strong contributor to noninterest income, producing $1.6 million in noninterest income during each quarter of 2026. Prior to the acquisition of Centre, minimal wealth management income was produced through referral agreements with partner firms. Service charge income totaled $4.1 million for 26Q3, compared to $4.1 million and $2.1 million for 26Q2 and 25Q3, respectively. Consumer behavior in the new Stateline region has driven a significant increase in service charge income during 2026, producing $12.9 million in revenue for 26YTD compared to $6.2 million for 25YTD. Income provided by the Bank’s investment in Ansay & Associates, LLC (“Ansay”) totaled $0.8 million for 26Q3, compared to $0.9 million and $1.3 million for 26Q2 and 25Q3, respectively. Ansay is experiencing reduced profitability in 2026, the result of investments they are making in automation and operational efficiency to improve future profitability, coupled with insurance pricing in several sectors entering an industry-wide softening. Gains on sales of mortgage loans totaled $2.3 million for 26YTD compared to $1.2 million for 25YTD as the Bank has produced strong results in retail lending in a challenging higher-rate environment. The increasing interest rate environment over the last twelve months has led to a $1.5 million positive valuation adjustment to the Bank’s mortgage servicing rights in 26YTD, compared to a $0.3 million positive valuation adjustment during 25YTD. Increasing prevailing mortgage rates cause the assumption for prepayments of mortgages to decline, increasing the underlying value of mortgage servicing rights assets.

Noninterest expense totaled $34.7 million in 26Q3, compared to $34.4 million during 26Q2 and $21.1 million during 25Q3. Expenses related to the Bank’s acquisitions of Centre and Peoples totaled $2.7 million during 26Q3 compared to $3.3 million during 26Q2 and $0.9 million during 25Q3. These expenses were distributed in the areas of personnel expense (primarily 26Q2), outside service fees (all three quarters) and data processing expenses (primarily 26Q3). Conversion of Centre’s core data processing system onto Bank First’s platform occurred during the second quarter of 2026. Prior to this conversion, and continuing into 26Q3, some operational areas of the Bank had redundancies (personnel expense, occupancy expense, data processing) which are in addition to the previously listed expenses related directly to acquisitions. Full realization of expected cost savings from operational synergies began during 26Q3 and are anticipated to be fully realized during future quarters. While personnel expense declined from $16.8 million in 26Q2 to $15.8 million in 26Q3, severance costs during 26Q2 totaling $1.3 million from the Centre acquisition mask a quarter-over-quarter increase in ongoing personnel costs as the Bank added several senior individuals in preparation of both the Peoples acquisition and future organic and acquisitive growth. The acquisition of Centre created a core deposit intangible asset of $31.9 million. Amortization related to this intangible asset, which the Bank will amortize over the next 10 years, led to the elevated amortization expense during 26YTD.

“We believe investing in people is essential to Bank First’s continued success. In anticipation of our Northcentral Region, which the acquisition of Peoples will create, we hired a new Regional President who brings extensive experience in the Wausau market. We also hired a Chief Retail Officer with substantial previous experience at two national banks. Together with several other key hires in recent quarters, these investments in our people deepen our expertise, strengthen our ability to serve customers, and build the leadership capacity to sustain our growth as we prepare to surpass $10 billion in assets,” stated Molepske.

Balance Sheet

Total assets were $5.95 billion on September 30, 2026, an increase of $1.44 billion from December 31, 2025, and up $1.53 billion from September 30, 2025. The acquisition of Centre added approximately $1.48 billion in assets on January 1, 2026.

The carrying value of investments on September 30, 2026, totaled $588.3 million, up $320.1 million from December 31, 2025, and $314.3 million from September 30, 2025. The acquisition of Centre included $333.1 million in investments, causing the investment portfolio’s composition of total assets to go from 6.0% at the end of 2025 to 9.9% at the end of the third quarter of 2026.

Total loans were $4.60 billion on September 30, 2026, up $991.2 million from December 31, 2025, and $966.2 million from September 30, 2025. Loans included in the acquisition of Centre totaled approximately $981.5 million. Some attrition in these acquired balances has created a headwind to overall loan growth for the organization during 2026. Total loans grew by a 6.6% annualized pace during 26Q3.

Total deposits, nearly all of which remain core deposits, were $5.00 billion on September 30, 2026, up $1.31 billion from December 31, 2025, and $1.46 billion from September 30, 2025. Deposits included in the acquisition of Centre totaled approximately $1.38 billion. Noninterest-bearing demand deposits comprised 29.7% of the Bank’s total deposits on September 30, 2026, after finishing 2025 at 27.1%.

As of January 1, 2026, after the acquisition of Centre, the Bank had outstanding borrowings totaling $206.9 million. The Bank’s strong liquidity position has allowed it to reduce this balance to $79.8 million on September 30, 2026. This reduction was accomplished through normal maturities on borrowings which were not renewed, as well as selective prepayments of borrowings that had negative carrying spreads to yields earned on the Bank’s on-balance sheet liquidity.

Asset Quality

Nonperforming assets on September 30, 2026, totaled $29.6 million, up $1.8 million from the end of the previous quarter and up $15.8 million from September 30, 2025. Other real estate owned, fully comprised of former properties of Centre that will not be utilized by Bank First, totaled $2.4 million on September 30, 2026. Loans currently in nonaccrual status remain concentrated in a few customer relationships. The circumstances which led these loans to nonaccrual status are unique and not prevalent throughout the Bank’s loan portfolio. Nonperforming assets to total assets remained manageable at 0.50% as of September 30, 2026, up slightly from 0.47% at the end of the prior quarter and 0.31% on September 30, 2025.

Capital Position

Stockholders’ equity totaled $826.4 million on September 30, 2026, an increase of $182.6 million from the end of 2025. Earnings of $68.5 million for 26YTD was supplemented by a positive impact to capital of $168.5 million from the Centre acquisition. These increases were offset by dividends totaling $18.4 million and share repurchases totaling $23.9 million during 26YTD. The Bank’s book value per common share totaled $74.57 on September 30, 2026, compared to $65.47 on December 31, 2025. Tangible book value per common share (non-GAAP) totaled $48.83 on September 30, 2026, compared to $46.01 on December 31, 2025.

Dividend Declaration

Bank First’s Board of Directors approved a quarterly cash dividend of $0.65 per common share, payable on January 6, 2027, to shareholders of record as of December 23, 2026. This dividend represents an increase of $0.05 and $0.20 per share, or 8.3% and 44.4%, from the dividend declared during the prior quarter and prior-year third quarter, respectively.

Bank First Corporation provides financial services through its subsidiary, Bank First, N.A., which was incorporated in 1894. Bank First offers loan, deposit, treasury management, trust, and wealth management services at each of its 38 banking locations in Wisconsin and Illinois. The Bank has grown through both acquisitions and de novo branch expansion. Bank First employs approximately 509 full-time equivalent staff and has assets of approximately $6 billion. Insurance services are available through its bond with Ansay. Further information about Bank First Corporation is available by clicking the Shareholder Services tab at www.bankfirst.com.

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Forward-Looking Statements: Certain statements contained in this press release and in other recent filings may constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements include, without limitation, statements relating to the timing, benefits, costs, and synergies of the merger with Centre, statements relating to our projected growth, anticipated future financial performance, financial condition, credit quality, and management’s long-term performance goals, and statements relating to the anticipated effects on our business, financial condition and results of operations from expected developments or events, our business, growth and strategies. These statements can generally be identified by the use of the words and phrases “may,” “will,” “should,” “could,” “would,” “goal,” “plan,” “potential,” “estimate,” “project,” “believe,” “intend,” “anticipate,” “expect,” “target,” “aim,” “predict,” “continue,” “seek,” “projection,” and other variations of such words and phrases and similar expressions.

These forward-looking statements are not historical facts and are based upon current expectations, estimates, and projections, many of which, by their nature, are inherently uncertain and beyond Bank First’s control. The inclusion of these forward-looking statements should not be regarded as a representation by Bank First or any other person that such expectations, estimates, and projections will be achieved. Accordingly, Bank First cautions shareholders and investors that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions, and uncertainties that are difficult to predict. Actual results may prove to be materially different from the results expressed or implied by the forward-looking statements. A number of factors could cause actual results to differ materially from those contemplated by the forward-looking statements including, without limitation, (1) business and economic conditions nationally, regionally and in our target markets, particularly in Wisconsin and the geographic areas in which we operate, (2) changes in government interest rate policies, (3) our ability to effectively manage problem credits, (4) the risks associated with Bank First’s pursuit of future acquisitions, (5) Bank First’s ability to successfully execute its various business strategies, including its ability to execute on potential acquisition opportunities, and (6) general competitive, economic, political, and market conditions.

This communication contains non-GAAP financial measures, such as adjusted net income, adjusted earnings per share, return of adjusted earnings on average assets, tangible book value per common share, return on average tangible common equity, and tangible common equity to tangible assets. Management believes such measures to be helpful to management, investors, and others in understanding Bank First's results of operations or financial position. When non-GAAP financial measures are used, the comparable GAAP financial measures, as well as the reconciliation of the non-GAAP measures to the GAAP financial measures, are provided. See " Non-GAAP Financial Measures" below. Management considers non-GAAP financial ratios to be critical metrics with which to analyze and evaluate financial condition and capital strengths. While non-GAAP financial measures are frequently used by stakeholders in the evaluation of a corporation, they have limitations as analytical tools and should not be considered in isolation or as a substitute for analyses of results as reported under GAAP.

Further information regarding Bank First and factors which could affect the forward-looking statements contained herein can be found in Bank First's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, and its other filings with the Securities and Exchange Commission (the “SEC”). Many of these factors are beyond Bank First’s ability to control or predict. If one or more events related to these or other risks or uncertainties materialize, or if the underlying assumptions prove to be incorrect, actual results may differ materially from the forward-looking statements. Accordingly, shareholders and investors should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date of this press release, and Bank First undertakes no obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. New risks and uncertainties may emerge from time to time, and it is not possible for Bank First to predict their occurrence or how they will affect the company.

Bank First Corporation

Consolidated Financial Summary (Unaudited)

Bank First Corporation

Consolidated Financial Summary (Unaudited)