[Form 4] Bank First Corporation Insider Trading Activity

Rhea-AI Filing Summary

Bank First Corporation director Michael S. Stayer-Suprick acquired 410 shares of common stock on 08/19/2025 at $122.67 per share, increasing his direct holdings to 3,965 shares. The Form 4 was signed by an attorney-in-fact on 08/20/2025. The filing records this single non-derivative purchase and does not disclose other transactions or additional context.

Insights

Financial Analyst

TL;DR: A director made a modest open-market purchase of 410 shares, a routine insider transaction with limited standalone materiality.

The reported purchase of 410 shares at $122.67 each increases the director's direct ownership to 3,965 shares. This is a non-derivative, open-market acquisition reported on Form 4, which provides transparency on insider activity. The transaction size relative to outstanding shares is not provided, so its impact on valuation or control is indeterminate from this filing alone. No derivatives or disposition activity were reported.

Corporate Governance Expert

TL;DR: Routine disclosure complying with Section 16; transaction was executed by an attorney-in-fact and properly reported on Form 4.

The filing shows the director relationship and a direct purchase, signed via attorney-in-fact, which is consistent with standard disclosure practices. The form identifies the reporting person, transaction date, price and post-transaction beneficial ownership. There is no indication of amendments, rule 10b5-1 plan notation, or other governance actions in the document provided.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Stayer-Suprick Michael S

(Last) (First) (Middle)

402 NORTH 8TH STREET

(Street)

MANITOWOC WI 54220

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Bank First Corp [ BFC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/19/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/19/2025		P		410	A	$122.67	3,965	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Kelly Dvorak, attorney-in-fact	08/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Bank First Corporation (BFC) report on this Form 4?

The director Michael S. Stayer-Suprick purchased 410 shares of common stock on 08/19/2025 at a price of $122.67 per share.

How many shares does the reporting person beneficially own after the transaction?

Following the reported purchase the reporting person beneficially owns 3,965 shares directly.

Who signed the Form 4 and when was it signed?

The Form 4 was signed by /s/ Kelly Dvorak, attorney-in-fact on 08/20/2025.

Was this transaction related to options, warrants, or other derivatives?

No. The filing reports a non-derivative purchase of common stock and contains no derivative securities activity.

Does the filing indicate the transaction was made under a 10b5-1 plan?

The form does not indicate that the transaction was made pursuant to a 10b5-1 trading plan; no such notation appears in the provided content.