BFC

EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

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 Second Quarter of 2026

·Net income of $24.7 million and $44.7 million for the three and six months ended June 30, 2026, respectively

·Earnings per common share of $2.21 and $3.99 for the three and six months ended June 30, 2026, respectively

·Adjusted net income (non-GAAP) of $27.3 million and $52.4 million and adjusted earnings per common share (non-GAAP) of $2.45 and $4.69 for the three and six months ended June 30, 2026, respectively, after removing the impact of acquisition expenses and certain asset sales

·Quarterly cash dividend of $0.60 per share declared, an increase of 9.1% and 33.3% over the prior quarter and prior-year second quarter, respectively

MANITOWOC, Wis., July 21, 2026 -- Bank First Corporation (NASDAQ: BFC) (“Bank First” or the “Bank”), the holding company for Bank First, N.A., reported net income of $24.7 million, or $2.21 per share, for the second quarter of 2026, compared with net income of $16.9 million, or $1.71 per share, for the prior-year second quarter. For the six months ending June 30, 2026, Bank First earned $44.7 million, or $3.99 per share, compared to $35.1 million, or $3.53 per share for the same period in 2025. 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 $27.3 million, or $2.45 per share, and $52.4 million, or $4.69 per share, for the three and six months ended June 30, 2026. Adjusted net income was $16.7 million, or $1.69 per share, and $35.0 million, or $3.52 per share, for the three and six months ended June 30, 2025.

“Following the anticipated closing of our Peoples acquisition in December 2026, Bank First will have approximately $7.5 billion in total assets,” stated Mike Molepske, Chairman and CEO of Bank First. “We are often asked about our plans to surpass $10 billion in assets. Our answer is simple: we will continue to grow with discipline. We will not compromise our acquisition standards simply to reach a regulatory threshold. Our focus remains on creating long-term shareholder value.”

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 nearly every aspect of Bank First’s results for the first half of 2026, as well as comparability to prior period results.

Net interest income (“NII”) during the second quarter of 2026 was $55.0 million, up $1.8 million from the previous quarter and up $18.3 million from the second quarter of 2025. 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 $3.5 million, or $0.25 per share after tax, during the second quarter of 2026, compared to $2.7 million, or $0.19 per share after tax, during the previous quarter and $0.6 million, or $0.05 per share after tax, during the second quarter of 2025.

Net interest margin (“NIM”) was 4.13% for the second quarter of 2026, compared to 3.96% for the previous quarter and 3.72% for the second quarter of 2025. NII from purchase accounting increased NIM by 0.27%, 0.20% and 0.07% for each of these periods, respectively. After removing the impact of purchase accounting, rates earned on average earning assets increased by four basis points and rates paid on average interest-bearing liabilities decreased by nine basis points from the first to the second quarter of 2026. These improvements caused NIM, adjusted to remove the impact of purchase accounting, to increase by 10 basis points quarter-over-quarter.

Bank First did not record a provision for credit losses in the second quarter of 2026, matching the previous quarter and less than the $0.2 million provision recorded during the second quarter of 2025. 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 (after removing the impact of the loans acquired from Centre on January 1), primarily in the Bank’s new Stateline region (formerly Centre), as the Bank transitioned out of certain loans that were not consistent with Bank First’s lending philosophy.

Noninterest income was $10.0 million for the second quarter of 2026, compared to $10.5 million for the prior quarter and $4.9 million for the second quarter of 2025. Trust and Wea

EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

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 Second Quarter of 2026

·Net income of $24.7 million and $44.7 million for the three and six months ended June 30, 2026, respectively

·Earnings per common share of $2.21 and $3.99 for the three and six months ended June 30, 2026, respectively

·Adjusted net income (non-GAAP) of $27.3 million and $52.4 million and adjusted earnings per common share (non-GAAP) of $2.45 and $4.69 for the three and six months ended June 30, 2026, respectively, after removing the impact of acquisition expenses and certain asset sales

·Quarterly cash dividend of $0.60 per share declared, an increase of 9.1% and 33.3% over the prior quarter and prior-year second quarter, respectively

MANITOWOC, Wis., July 21, 2026 -- Bank First Corporation (NASDAQ: BFC) (“Bank First” or the “Bank”), the holding company for Bank First, N.A., reported net income of $24.7 million, or $2.21 per share, for the second quarter of 2026, compared with net income of $16.9 million, or $1.71 per share, for the prior-year second quarter. For the six months ending June 30, 2026, Bank First earned $44.7 million, or $3.99 per share, compared to $35.1 million, or $3.53 per share for the same period in 2025. 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 $27.3 million, or $2.45 per share, and $52.4 million, or $4.69 per share, for the three and six months ended June 30, 2026. Adjusted net income was $16.7 million, or $1.69 per share, and $35.0 million, or $3.52 per share, for the three and six months ended June 30, 2025.

“Following the anticipated closing of our Peoples acquisition in December 2025, Bank First will have approximately $7.5 billion in total assets,” stated Mike Molepske, Chairman and CEO of Bank First. “We are often asked about our plans to surpass $10 billion in assets. Our answer is simple: we will continue to grow with discipline. We will not compromise our acquisition standards simply to reach a regulatory threshold. Our focus remains on creating long-term shareholder value.”

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 nearly every aspect of Bank First’s results for the first half of 2026, as well as comparability to prior period results.

Net interest income (“NII”) during the second quarter of 2026 was $55.0 million, up $1.8 million from the previous quarter and up $18.3 million from the second quarter of 2025. 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 $3.5 million, or $0.25 per share after tax, during the second quarter of 2026, compared to $2.7 million, or $0.19 per share after tax, during the previous quarter and $0.6 million, or $0.05 per share after tax, during the second quarter of 2025.

Net interest margin (“NIM”) was 4.13% for the second quarter of 2026, compared to 3.96% for the previous quarter and 3.72% for the second quarter of 2025. NII from purchase accounting increased NIM by 0.27%, 0.20% and 0.07% for each of these periods, respectively. After removing the impact of purchase accounting, rates earned on average earning assets increased by four basis points and rates paid on average interest-bearing liabilities decreased by nine basis points from the first to the second quarter of 2026. These improvements caused NIM, adjusted to remove the impact of purchase accounting, to increase by 10 basis points quarter-over-quarter.

Bank First did not record a provision for credit losses in the second quarter of 2026, matching the previous quarter and less than the $0.2 million provision recorded during the second quarter of 2025. 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 (after removing the impact of the loans acquired from Centre on January 1), primarily in the Bank’s new Stateline region (formerly Centre), as the Bank transitioned out of certain loans that were not consistent with Bank First’s lending philosophy.

Noninterest income was $10.0 million for the second quarter of 2026, compared to $10.5 million for the prior quarter and $4.9 million for the second quarter of 2025. Trust and Wea

EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

PO Box 10, Manitowoc, WI 54221-0010

For further information, contact:

Kevin M LeMahieu, Chief Financial Officer

Phone: (920) 652-3200 / klemahieu@bankfirst.com

NEWS

release

[For Immediate Release]

Bank First Announces Net Income for the First Quarter of 2026

·Net income of $20.0 million and earnings per common share of $1.78 for the three months ended March 31, 2026

·Adjusted net income (non-GAAP) of $25.1 million and adjusted earnings per common share (non-GAAP) of $2.24 for the three months ended March 31, 2026, after removing the impact of one-time acquisition expenses and asset sales

·Annualized growth in tangible book value (non-GAAP) of 9.1% during the first quarter of 2026

·Quarterly cash dividend of $0.55 per share declared, an increase of 10.0% and 22.2% over the prior quarter and prior-year first quarter, respectively

MANITOWOC, Wis., April 16, 2026 -- Bank First Corporation (NASDAQ: BFC) (“Bank First” or the “Bank”), the holding company for Bank First, N.A., reported net income of $20.0 million, or $1.78 per share, for the first quarter of 2026, compared with net income of $18.2 million, or $1.82 per share, for the prior-year first quarter. After removing the impact of $6.5 million of expenses related to the acquisition of Centre 1 Bancorp, Inc. (“Centre”), as well as $0.2 million of net gains on the sale of certain assets, the Bank reported adjusted net income (non-GAAP) of $25.1 million, or $2.24 per share, for the first quarter of 2026. There were no similar acquisition expenses or gains on sale of assets during the first quarter of 2025.

“On January 1, 2026, we successfully completed our acquisition of Centre 1 Bancorp, Inc., the holding company for First National Bank and Trust, headquartered in Beloit, Wisconsin. This acquisition marked another milestone in Bank First’s long-term growth strategy and established our new Stateline Region. We are pleased to welcome their customers, employees, and shareholders into the Bank First family, and we are excited to expand our capabilities by adding experienced Trust and Wealth Management, Fraud, and Treasury Management teams. The integration of these specialized services is already enhancing our ability to deliver comprehensive financial solutions across our legacy markets, and we are actively investing in the continued build-out of our Wealth Management platform throughout our footprint. As part of our disciplined integration strategy, six overlapping First National Bank and Trust branches were permanently closed upon completion of the acquisition. In addition, we are planning to build new, modern offices in Walworth, Delavan, and Monroe. These new locations will strengthen our long-term presence in high-potential relationship markets while allowing us to consolidate and close two additional First National Bank and Trust branches,” said Mike Molepske, Chairman and CEO of Bank First Corporation.

Operating Results

The acquisition of Centre, an institution with $1.48 billion in assets at closing, increased total assets of Bank First by 33%. The added operating scale from this transaction significantly impacted nearly every aspect of Bank First’s results for the first quarter of 2026.

Net interest income (“NII”) during the first quarter of 2026 was $53.2 million, up $13.1 million from the previous quarter and up $16.7 million from the first quarter of 2025. 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 $2.7 million, or $0.19 per share after tax, during the first quarter of 2026, compared to $0.5 million, or $0.04 per share after tax, during the previous quarter and $1.0 million, or $0.08 per share after tax, during the first quarter of 2025. Bank First repaid $65.0 million in borrowings from the Federal Home Loan Bank (“FHLB”) that were included in liabilities assumed from Centre during the first quarter of 2026. As a result of this repayment prior to contractual maturity dates, $1.3 million of purchase accounting fair value adjustment related to these borrowings was recognized, reducing interest expense (this is included in the previously mentioned $2.7 million impact of purchase accounting), and a $1.1 million prepayment penalty was paid to the FHLB (included in other noninterest expense).

Net interest margin (“NIM”) was 3.96% for the first quarter of 2026, compared to 4.01% for the previous quarter and 3.65% for the first quarter of 2025. NII from purchase accounting increased NIM by 0.20%, 0.05% and 0.10% for each of these periods, respectively.

Bank First did not record a provision for credit losses in the first quarter of 2026, matching the previous quarter and less than the $0.2 million provision recorded during the first quarter of 2025. Accounting entries related to the Centre acquisition added $12.8 million to the allowan