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 Third Quarter of 2026

·Net income of $23.8 million and $68.5 million for the three and nine months ended September 30, 2026, respectively

·Earnings per common share of $2.15 and $6.14 for the three and nine months ended September 30, 2026, respectively

·Adjusted net income (non-GAAP) of $26.1 million and $78.5 million and adjusted earnings per common share (non-GAAP) of $2.35 and $7.04 for the three and nine months ended September 30, 2026, respectively, after removing the impact of acquisition expenses and certain asset sales

·Quarterly cash dividend of $0.65 per share declared, an increase of 8.3% and 44.4% over the prior quarter and prior-year third quarter, respectively

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

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