Bank First Corp

(in thousands, except share and per share data)

NOTE 1 – BASIS OF PRESENTATION

Bank First Corporation (the “Company”) provides a variety of financial services to individual and corporate customers through its wholly-owned subsidiary, Bank First, N.A. (the “Bank”). The Bank operates as a full-service financial institution with a primary market area including, but not limited to, the counties in which the Bank’s branches are located. The Bank hasthirty-eight locations in Brown, Columbia, Dane, Door, Fond du Lac, Green, Jefferson, Manitowoc, Monroe, Outagamie, Ozaukee, Rock, Shawano, Sheboygan, Walworth, Waupaca, Waushara, and Winnebago counties in the State of Wisconsin and Winnebago county in the State of Illinois. The Company and Bank are subject to the regulations of certain federal agencies and undergo periodic examinations by those regulatory authorities.

These interim unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information and with the instructions to Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. Accordingly, certain information and footnote disclosures required by GAAP have been omitted or abbreviated. These unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (“Annual Report”).

The unaudited consolidated financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods. The results for interim periods are not necessarily indicative of results for a full year.

Critical Accounting Policies and Estimates

The accounting and reporting policies of the Company conform to GAAP in the United States and general practices within the financial institution industry. To prepare financial statements in conformity with GAAP, management makes estimates, assumptions and judgments based on available information. These estimates, assumptions and judgments are based on information available as of the date of the financial statements and, as this information changes, actual results could differ from the estimates, assumptions and judgments reflected in the financial statement. As disclosed in the Company’s Annual Report, management has identified several accounting policies that, due to the estimates, assumptions and judgments inherent in those policies, are critical in understanding our financial statements. These include accounting for business combinations (primarily related to core deposit intangibles and acquired loans) and accounting for the ACL-Loans.

There have been no material changes or developments with respect to the assumptions or methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as previously disclosed in the Company’s Annual Report.

Reclassifications

Certain 2025 amounts have been reclassified to conform to the presentation used in 2026. These reclassifications had no effect on the operations, financial condition or cash flows of the Company.

Updates to Significant Accounting Policies

Effective January 1, 2026, the Company early adopted Accounting Standards Update (“ASU”) 2025-08,Financial Instruments—Credit Losses (Topic 326): Purchased Financial Assets. Any financial assets purchased after January 1, 2026 (including those acquired as part of the acquisition of Centre 1 Bancorp. Inc. (“Centre”) on January 1, 2026) reflect the application of ASU 2025-08, while financial assets purchased prior to this date will continue to be reported in accordance with previously applicable accounting standards.

Recently Issued Not Yet Effective Accounting Standards

In October 2023, the Financial Accounting Standards Board (“FASB”) issued ASU 2023-06,*Disclosure Improvements.*This ASU modifies the disclosure or presentation requirements of a variety of Topics in the Codification. The amendments in this ASU are expected to clarify or improve disclosure and presentation requirements for certain codification topics. The effective date for each amendment will be the date on which the Securities and Exchange Commission’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective, with early adoption prohibited. If, by June 30, 2027, the Securities and Exchange Commission has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The Company does not anticipate a significant impact to its financial statement disclosures as a result of this ASU.

In November 2024, the FASB issued ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Topic 220): Disaggregation of Income Statement Expenses. This ASU is intended to improve the disclosures about a public entity’s income statement expense categories and addresses requests from investors and other decision makers for additional, more detailed information about income statement expense categories. The amendment applies to all public entities that are required to report income statement categories in accordance with Topic 280. The effective date for this update was amended by ASU 2025-01, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date, and is now effective for annual periods beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027.

In December 2025, the FASB issued ASU 2025-11,Interim Reporting (Topic 270) – Narrow Scope Improvements. This ASU is intended to better clarify interim disclosure requirements and the applicability of Topic 270 by improving the navigability of the required interim disclosures and clarifying what guidance is applicable. The amendments also provide additional guidance on what disclosures would be provided in interim reporting periods. This update is effective for annual periods beginning after December 15, 2027, with early adoption permitted. The Company anticipates that this standard may impact the specific disclosures it utilizes in interim reports but will not cause any change in the accounting for operational results.

NOTE 2 – ACQUISITIONS

On January 1, 2026, the Company completed a merger with Centre, a bank holding company headquartered in Beloit, Wisconsin, pursuant to the merger agreement, dated as of July 17, 2025, by and between the Company and Centre, whereby Centre merged with and into the Company, and First National Bank and Trust, Centre’s wholly-owned banking subsidiary, merged with and into the Bank. Centre’s principal activity was the ownership and operation of First National Bank and Trust, a federally-chartered banking institution that operated seventeen (17) branches in Wisconsin and Illinois at the time of closing. The merger consideration totaled approximately $168.8 million.

Pursuant to the Merger Agreement, Centre shareholders were entitled to receive, for each share of Centre common stock that was outstanding immediately prior to the merger,0.9200 shares of the Company’s common stock and cash in lieu of fractional shares. Company stock issued totaled 1,382,940 shares valued at approximately $168.5 million, with cash of $0.3 million comprising the remainder of merger consideration. After close the combined company had total assets of approximately $6.2 billion, loans of approximately $4.6 billion, and deposits of approximately $5.0 billion.

The fair value of the assets acquired and liabilities assumed on January 1, 2026 was as follows:

The Company purchased loans through the acquisition of Centre for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (PCD Loans). The carrying amount of these loans at acquisition was as follows:

All other loans purchased through this acquisition were classified as Purchased Seasoned Loans under the guidance of ASU 2025-08.

The following unaudited pro forma information is presented for illustrative purposes only. The pro forma information should not be relied upon as being indicative of the historical results of operations the Company would have had if the Centre merger had occurred before such periods or the future results of operations that the Company will experience as a result of the merger. The pro forma information, although helpful in illustrating the financial characteristics of the combined company under one set of assumptions, does not reflect the benefits of expected cost savings, opportunities to earn additional revenue, the impact of restructuring and merger-related expenses, or other factors that may result as a consequence of the merger and, accordingly, does not attempt to predict or suggest future results. The unaudited pro forma information set forth below gives effect to the merger as if it had occurred on January 1, 2025, the beginning of the earliest period presented.

The Company accounted for this transaction under the acquisition method of accounting, and thus, the financial position and results of operations of Centre prior to the consummation dates were not included in the accompanying consolidated financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective fair values at the date of acquisition. The Company determined the fair value of core deposit intangibles, securities, premises and equipment, loans, other assets and liabilities and deposits with the assistance of third-party valuations, appraisals and third-party advisors. The acquisition accounting is provisional for up to one year after the acquisition and could be adjusted in subsequent quarters during 2026 if additional relevant information to the fair values listed above becomes available.

On May 19, 2026, the Company entered into an Agreement and Plan of Merger with PSB Holdings, Inc. (“Peoples”), the parent company of Peoples State Bank, a community bank headquartered in Wausau, Wisconsin. Under the terms of the agreement, Peoples will merge with and into the Company, and Peoples State Bank will merge with and into the Bank. The transaction is expected to close on December 4, 2026. All required regulatory and shareholder approvals have been obtained. Merger consideration will consist of common stock of the Company, with final terms based on the fair market value of the Company’s common stock at closing. Based on combined results as of September 30, 2026, the merged entity would have total assets of approximately $7.5 billion, loans of approximately $5.7 billion, and deposits of approximately $6.2 billion.

NOTE 3 – EARNINGS PER SHARE

The two-class method is used in the calculation of basic and diluted earnings per share. Under the two-class method, earnings available to common shareholders for the period are allocated between common shareholders and participating securities according to dividends declared (or accumulated) and participation rights in undistributed earnings. There wereno anti-dilutive stock options for the three or nine months ended September 30, 2026 and 2025.

The following table presents the factors used in the earnings per share computations for the period indicated:

NOTE 4 – SECURITIES

The following is a summary of available for sale securities:

The following is a summary of held to maturity securities:

The following table shows the fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

As of September 30, 2026, and December 31, 2025, no allowance for credit losses has been recognized on available for sale securities in an unrealized loss position as the Company does not believe any of the debt securities are credit impaired. This is based on the Company’s analysis of the risk characteristics, including credit ratings, and other qualitative factors related to these securities. The issuers of these securities continue to make timely principal and interest payments under the contractual terms of the securities. As of September 30, 2026, the Company did not intend to sell these securities and it was more likely than not that the Company would not be required to sell the debt securities before recovery of their amortized cost, which may be at maturity. The unrealized losses have occurred as a result of changes in interest rates, market spreads and market conditions subsequent to purchase, not credit deterioration.

Furthermore, based on its analysis the Company has determined that held to maturity securities have zero expected credit losses. U.S. Treasury securities have the full faith and credit backing of the United States Government.

The following is a summary of amortized cost and estimated fair value of securities by contractual maturity as of September 30, 2026. Contractual maturities will differ from expected maturities for mortgage-backed securities because borrowers may have the right to call or prepay obligations without penalties.

As of September 30, 2026 and December 31, 2025, the carrying values of securities pledged to secure public deposits and for other purposes required or permitted by law were approximately $220.0 million and $249.7 million, respectively.

Sales of securities available for sale produced $8.9 million in proceeds with immaterial gross gains and losses for the nine months ended September 30, 2026. There wereno sales of securities available for sale during the three months ended September 30, 2026 or the three and nine months ended September 30, 2025.

NOTE 5 – LOANS, ALLOWANCE FOR CREDIT LOSSES, AND CREDIT QUALITY

The following table presents total loans by portfolio segment and class of loan as of September 30, 2026 and December 31, 2025:

The ACL - Loans is based on the Company’s evaluation of historical default and loss experience, current and projected economic conditions, asset quality trends, known and inherent risks in the portfolio, adverse situations that may affect the borrowers’ ability to repay a loan, the estimated value of any underlying collateral, composition of the loan portfolio and other relevant factors. More information regarding the Company’s methodology related to the ACL-Loans can be found in the Company’s Annual Report.

The Company utilized the high-end range of the Federal Reserve Bank Open Market Committee forecast for national unemployment and the low-end range for national GDP growth at September 30, 2026 and December 31, 2025. As of September 30, 2026, the Company anticipates the national unemployment rate to rise nominally during the forecast period and the national GDP growth rate to decrease. The Company utilized long-term averages for the remaining loss drivers. There were no changes made to the qualitative factors applied to individual loan pools during the third quarter of 2026.

A roll forward of the ACL-Loans is summarized as follows:

A summary of the activity in the ACL - Loans by loan type for the nine months ended September 30, 2026 is summarized as follows:

A summary of the activity in the ACL – Loans by loan type for the nine months ended September 30, 2025 is summarized as follows:

In addition to the ACL-Loans, the Company has established an allowance for credit losses on unfunded commitments (“ACL-Unfunded Commitments”), classified in other liabilities on the consolidated balance sheets. This allowance is maintained to absorb losses arising from unfunded loan commitments, and is determined quarterly based on methodology similar to the methodology for determining the ACL-Loans. The ACL-Unfunded Commitments was $3.7 million and $3.0 million at September 30, 2026 and December 31, 2025, respectively. See Note 11 for further information on commitments.

The provision for credit losses is determined by the Company as the amount to be added to the ACL accounts for various types of financial instruments including loans, investment securities, and off-balance sheet credit exposures after net charge-offs have been deducted to bring the ACL to a level that, in management’s judgment, is necessary to absorb expected credit losses over the lives of the respective financial instruments. The following table presents the components of the provision for credit losses.

The Company’s past due and non-accrual loans as of September 30, 2026 is summarized as follows:

The Company’s past due and non-accrual loans as of December 31, 2025 is summarized as follows:

Interest recognized on non-accrual loans is considered immaterial to the consolidated financial statements for the nine months ended September 30, 2026 and 2025.

A loan is considered to be collateral dependent when, based upon management’s assessment, the borrower is experiencing financial

difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. For collateral dependent loans, expected credit losses are based on amortized cost of the loan less the estimated fair value of the collateral at the balance sheet date, with consideration for estimated selling costs if satisfaction of the loan depends on the sale of the collateral.

The following tables present collateral dependent loans by portfolio segment and collateral type, including those loans with and without a related allowance allocation. Real estate collateral primarily consists of operating facilities of the underlying borrowers. Other business assets collateral primarily consists of equipment, receivables and inventory of the underlying borrowers.

The Company utilizes a numerical risk rating system for commercial relationships. All other types of relationships (ex: residential, consumer, other) are assigned a “Pass” rating, unless they have fallen 90 days past due or more, at which time they are assessed for a rating of 5, 6 or 7. The Company uses split ratings for government guaranties on loans. The portion of a loan that is supported by a government guaranty is included with other Pass credits.

The determination of a commercial loan risk rating begins with completion of a matrix, which assigns scores based on the strength of the borrower’s debt service coverage, collateral coverage, balance sheet leverage, industry outlook, and customer concentration. A weighted average is taken of these individual scores to arrive at the overall rating. This rating is subject to adjustment by the loan officer based on facts and circumstances pertaining to the borrower. Risk ratings are subject to independent review.

Commercial borrowers with ratings between 1 and 5 are considered Pass credits, with 1 being most acceptable and 5 being just above the minimum level of acceptance. Commercial borrowers rated 6 have potential weaknesses which may jeopardize repayment ability. Borrowers rated 7 have a well-defined weakness or weaknesses such as the inability to demonstrate significant cash flow for debt service based on analysis of the company’s financial information. These loans remain on accrual status provided full collection of principal and interest is reasonably expected. Otherwise they are deemed impaired and placed on nonaccrual status. Borrowers rated 8 are the same as 7 rated credits with one exception: collection or liquidation in full is not probable.

The following tables present total loans by risk ratings and year of origination. Loans acquired from other previously acquired institutions have been included in the table based upon the actual origination date.

Loans that were both experiencing financial difficulty and were modified during the nine months ended September 30, 2026 and 2025, were insignificant to these consolidated financial statements.

NOTE 6 – MORTGAGE SERVICING RIGHTS

Loans serviced for others are not included in the accompanying consolidated balance sheets. MSRs are recognized as separate assets when loans sold in the secondary market are sold with servicing retained. The Company utilizes a third-party valuation specialist to assist management in estimating the fair value of its MSRs. The third-party firm collects relevant data points from numerous sources. Some of these data points relate directly to the pricing level or relative value of the mortgage servicing while other data points relate to the assumptions used to derive fair value. In addition, the valuation evaluates specific collateral types, and current and historical performance of the collateral in question. The valuation process focuses on the non-distressed secondary servicing market, common industry practices and current regulatory standards. The primary determinants of the fair value of MSRs are servicing fee percentage, ancillary income, expected loan life or prepayment speeds, discount rates, costs to service, delinquency rates, foreclosure losses and recourse obligations. The valuation data also contains interest rate shock analyses for monitoring fair value changes in differing interest rate environments.

Following is an analysis of activity in the MSR asset:

The primary economic assumptions utilized by the Company in measuring the value of MSRs were constant prepayment speeds of 7.2% and 8.5% and discount rates of 10.14% and 10.17% as of September 30, 2026 and December 31, 2025, respectively. The constant prepayment speeds are obtained from publicly available sources for each of the loan programs the Company originates under.

NOTE 7 – NOTES PAYABLE

The Company utilizes FHLB advances to fund liquidity. The Company had outstanding balances borrowed from the FHLB of $55.0 million and $110.0 million at September 30, 2026 and December 31, 2025, respectively. The advances, rate, and maturities of FHLB advances were as follows:

Future maturities of borrowings were as follows:

As of September 30, 2026, the Company had borrowing availability at the FHLB totaling $626.7 million in addition to the existing borrowings noted in the tables above. The Company has also issued $21.2 million in letters of credit through the FHLB with expiration dates through November 2026.

The Company assumed $65.0 million of FHLB borrowings as part of the Centre acquisition on January 1, 2026. The Company repaid these borrowings in full on January 23, 2026, prior to the contractual maturity. As a result, the Company recognized $1.3 million of purchase accounting fair value adjustment related to the borrowings, which reduced interest expense from borrowed funds, and incurred a $1.1 million prepayment penalty paid to the FHLB which is reflected in other noninterest expense.

NOTE 8 – SUBORDINATED NOTES AND JUNIOR SUBORDINATED DEBENTURES

During July 2020, the Company entered into subordinated note agreements withtwo separate commercial banks. The Company had through December 31, 2020, to borrow funds up to a maximum availability of $6.0 million under each agreement, or $12.0 million total. These notes were issued with 10-year maturities, carried interest at a fixed rate of 5.0% through June 30, 2025, and carry a variable rate thereafter, payable quarterly. These notes became callable by the Company on January 1, 2026 and qualify for Tier 2 capital for regulatory purposes. The Company had outstanding balances of $6.0 million under these agreements at September 30, 2026 and December 31, 2025.

During August 2022, the Company entered into subordinated note agreements with an individual. The Company had outstanding balances of $6.0 million under these agreements as of September 30, 2026 and December 31, 2025. These notes were issued with 10-year maturities, carry interest at a fixed rate of 5.25% through August 6, 2027, and at a variable rate thereafter, payable quarterly. These notes are callable on or after August 6, 2027 and qualify for Tier 2 capital for regulatory purposes.

The Company assumed $4.5 million in subordinated note agreements with an individual as part of the Centre acquisition January 1, 2026. These notes were entered into by Centre during January 2025. They contain 10-year maturities and carry interest at a fixed rate of 6.75% through January 1, 2030, and at a variable rate thereafter, payable quarterly. These notes are callable on or after January 2030 and qualify for Tier 2 capital for regulatory purposes.

As a result of the acquisition of Centre on January 1, 2026, the Company acquired all of the common securities of Centre’s wholly-owned subsidiary, Centre 1 Capital Trust I (“Trust I”). The Company also assumed an adjustable rate junior subordinated note agreement with this trust. The junior subordinated debenture issued to Trust I totals $8.3 million, carries interest at a floating rate resetting on each quarterly payment date, and is due in January 2039. The junior subordinated debenture is redeemable by the Company, subject to prior approval by the Federal Reserve Bank, on any quarterly payment date. The junior subordinated debenture represents the sole asset of Trust I. The trust is not included in the consolidated financial statements. The net effect of all agreements assumed with respect to Trust I is that the Company, through payments on its debenture, is liable for the distributions and other payments required on the trust’s preferred securities. Trust I also provides the Company with $8.0 million in Tier 1 capital for regulatory capital purposes.

NOTE 9 – REGULATORY MATTERS

Banks and certain bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action.

Under regulatory guidance for non-advanced approaches institutions, the Bank and Company are required to maintain minimum amounts and ratios of common equity Tier I capital to risk-weighted assets, including an additional conservation buffer determined by banking regulators. As of September 30, 2026 and December 31, 2025, this buffer was 2.5%. The Bank met all capital adequacy requirements to which they are subject as of September 30, 2026 and December 31, 2025.

Actual and required capital amounts and ratios are presented below at period-end:

NOTE 10 – SEGMENT INFORMATION

The Company’ssingle reportable segment is determined by the Chief Executive Officer, who is the designated chief operating decision maker (“CODM”), based upon information provided by the Company’s products and services offered, primarily banking operations. The segment is also distinguished by the level of information provided to the CODM, who uses such information to review the performance of various components of the business such as branches, which are then aggregated as operating performance, products and services, and customers are similar. The CODM will then evaluate the financial performance of the Company’s business components such as by evaluating significant revenues and expenses and budget to actual results in assessing the Company’s segment and in the determination of allocating resources. The CODM uses revenue streams to evaluate product pricing and significant expenses to assess performance and evaluate return on assets. The CODM uses consolidated net income and return on assets to benchmark the Company against its competitors. The benchmarking analysis, coupled with monitoring of budget to actual results, are used in the assessment of performance and in establishing compensation. Loans, investments, service charges, and deposits in other banks provide the significant revenues in the banking operation. Interest expense, provisions for credit losses, data processing and payroll provide the significant expenses in the banking operation. All operations are domestic. Information reported internally for performance assessment by the chief operating decision maker is identical to that which is shown in the Consolidated Statements of Income.

NOTE 11 – COMMITMENTS AND CONTINGENCIES

The Company enters into commitments to originate loans whereby the interest rate on the loan is determined prior to funding (rate-lock commitments). Rate-lock commitments on mortgage loans that are intended to be sold are considered to be derivatives. Accordingly, such commitments, along with any related fees received from potential borrowers, are recorded at fair value in derivative assets or liabilities, with changes in fair value recorded in the net gain or loss on sale of mortgage loans. Fair value is based on fees currently charged to enter into similar agreements and for fixed rate commitments also considers the difference between current levels of interest rates and committed rates. The notional amount of rate-lock commitments at September 30, 2026 and December 31, 2025 was approximately $11.1 million and $16.9 million, respectively. The fair value of these rate-lock commitments are not material to these financial statements.

The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated balance sheets.

The Company’s exposure to credit loss is represented by the contractual or notional amount of these commitments. The Company follows the same credit policies in making commitments as it does for on-balance-sheet instruments. Since some of the commitments are expected to expire without being drawn upon and some of the commitments may not be drawn upon to the total extent of the commitment, the notional amount of these commitments does not necessarily represent future cash requirements.

The following commitments were outstanding:

NOTE 12 – FAIR VALUE MEASUREMENTS

Accounting guidance establishes a fair value hierarchy to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value.

Level 1: Quoted prices (unadjusted) or identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

Information regarding the fair value of assets measured at fair value on a recurring basis is as follows:

There wereno assets measured on a recurring basis using significant unobservable inputs (Level 3) during these periods. Furthermore, there wereno liabilities measured on a recurring basis during the periods.

Information regarding the fair value of assets measured at fair value on a non-recurring basis is as follows:

The following is a description of the valuation methodologies used by the Company for the items noted in the table above, including the general classification of such instruments in the fair value hierarchy. For loans individually evaluated, the amount of reserve is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate, the estimated fair value of the underlying collateral for collateral-dependent loans, or the estimated liquidity of the note. For OREO, the fair value is based upon the estimated fair value of the underlying collateral adjusted for the expected costs to sell.

The following table shows significant unobservable inputs used in the fair value measurement of Level 3 assets:

The carrying value and estimated fair value of financial instruments not measured and reported at fair value on a recurring or non-recurring basis at September 30, 2026 and December 31, 2025 are as follows:

The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. Consequently, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company.

Fair value estimates are made at a specific point in time based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters that could affect the estimates. Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments.

Deposits with no stated maturities are defined as having a fair value equivalent to the amount payable on demand. This prohibits adjusting fair value derived from retaining those deposits for an expected future period of time. This component, commonly referred to as a deposit base intangible, is neither considered in the above amounts nor is it recorded as an intangible asset on the consolidated balance sheet. Significant assets and liabilities that are not considered financial assets and liabilities include premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

NOTE 13 – STOCK BASED COMPENSATION

The Company has made restricted share grants pursuant to the Bank First Corporation 2011 Equity Plan and the Bank First Corporation 2020 Equity Plan, which replaced the 2011 Plan. The purpose of the Plan is to provide financial incentives for selected employees and for the non-employee Directors of the Company, thereby promoting the long-term growth and financial success of the Company. The number of shares of Company stock that may be issued pursuant to awards under the 2020 Plan shall not exceed, in the aggregate,700,000. As of September 30, 2026,156,729 shares of Company stock have been awarded under the 2020 Plan. Compensation expense for restricted stock is based on the fair value of the awards of Bank First Corporation common stock at the time of grant. The value of restricted stock grants that are expected to vest is amortized into expense over the vesting periods. For the three months ended September 30, 2026 and 2025, compensation expense of $0.7 million and $0.6 million, respectively, was recognized related to restricted stock awards. For the nine months ended September 30, 2026 and 2025, compensation expense of $1.9 million and $1.6 million, respectively, was recognized related to restricted stock awards.

As of September 30, 2026, there was $4.6 million of unrecognized compensation cost related to non-vested restricted stock awards granted under the plan. That cost is expected to be recognized over a weighted average period of 2.1 years. The aggregate grant date fair value of restricted stock awards that vested during the nine months ended September 30, 2026, was approximately $2.2 million.

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