UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

June 23, 2026

Bank First Corporation

(Exact name of registrant as specified in its charter)

Wisconsin	001-38676	39-1435359
(State or other jurisdiction	(Commission	(IRS Employer
of incorporation)	File Number)	Identification No.)

402 North 8th Street, Manitowoc, WI	54220
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code

(920) 652-3100

N/A

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Ticker symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	BFC	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for company with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

On June 16, 2026, Bank First Corporation (the “Company”) elected three new directors to its Board of Directors, including SriRaj Kantamneni, Tracy C. Pearson and William J. Ring, each for a three-year term. The directors were also elected to the Board of Directors of Bank First, N.A., the Company’s wholly owned banking subsidiary.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	BANK FIRST CORPORATION


Date: June 23, 2026	By:	/s/ Kevin M. LeMahieu
		Kevin M. LeMahieu
		Chief Financial Officer

Bank First Corporation filed SEC Form 8-K: Leadership Update