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): January 29, 2026

    

First Business Financial Services, Inc.

(Exact name of Registrant as Specified in Its Charter)


Wisconsin	001-34095	39-1576570
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

401 Charmany Drive
Madison, Wisconsin		53719
(Address of Principal Executive Offices)		(Zip Code)

     Registrant’s Telephone Number, Including Area Code: 608 238-8008

    

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	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value	FBIZ	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 complying 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 January 29, 2026, Ralph R. Kauten provided First Business Financial Services, Inc. (the "Company") with notice of his intention to retire from the Company’s Board of Directors (the “Board”) effective as of the conclusion of the 2026 Annual Meeting of Shareholders, which is expected to be held on or about April 24, 2026. Mr. Kauten has served on the Board since 2018. Mr. Kauten’s retirement is in accordance with reaching the age of 75 as outlined in the Director Retirement Policy and did not involve any disagreement with the Company on any matter relating to the registrant’s operations, policies, or practices. Jason R. Graham will succeed Mr. Kauten as the Chair of the Audit Committee upon the effective date of Mr. Kauten’s retirement.


Item 9.01	Financial Statements and Exhibits.
(a)	Not applicable
(b)	Not applicable
(c)	Not applicable
(d)	Exhibits. The following exhibits are being furnished herewith:
	104 Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

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



February 2, 2026	FIRST BUSINESS FINANCIAL SERVICES, INC.

	By:	/s/ Brian D. Spielmann
	Name:	Brian D. Spielmann
	Title:	Chief Financial Officer

FIRST BUSINESS FINANCIAL SERVICES, INC. 8-K