FIRST BUSINESS FINANCIAL SERVICES, INC.

Nasdaq:FBIZ

State Commercial Banks·MADISON, WI

CEO

Chambas Corey A

CFO

Spielmann Brian D.

All Filings(1001 total)

TypeDateAccessionPeriodSize

DEFA14A

Mar 9, 2026

0001104659-26-025239DEFA14A

—

13.5 KB

DEFA14A

Mar 5, 2026

0001193125-26-092621DEFA14A

—

23.6 MB

DEF 14A

Mar 5, 2026

0001193125-26-092613DEF 14A

Mar 5, 2026

38.9 MB

S-3

Mar 3, 2026

0001104659-26-022926FORM S-3

—

663.3 KB

10-K

Feb 25, 2026

0001193125-26-07152310-K

Dec 31, 2025

44.4 MB

Feb 18, 2026

0000892712-26-000130STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.9 KB

Feb 18, 2026

0000892712-26-000129STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000128STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000127STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.0 KB

Feb 18, 2026

0000892712-26-000126STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000125STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000124STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000123STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000122STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 18, 2026

0000892712-26-000121STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Feb 16, 2026

5.7 KB

Feb 9, 2026

0000892712-26-000071INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Jan 30, 2026

9.0 KB

13F-HR

Feb 6, 2026

0001140361-26-004002

Dec 31, 2025

90.2 KB

8-K

Feb 3, 2026

0001193125-26-0356848-K

Feb 3, 2026

17.1 MB

8-K

Feb 2, 2026

0001193125-26-0335968-K

Jan 29, 2026

166.8 KB

8-K

Jan 29, 2026

0001193125-26-0293218-K

Jan 29, 2026

8.5 MB

Nov 14, 2025

0000892712-25-000161STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Nov 12, 2025

6.5 KB

Nov 10, 2025

0000892712-25-000145STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Nov 7, 2025

4.4 KB

8-K

Nov 10, 2025

0001193125-25-2743558-K

Nov 10, 2025

18.5 MB

8-K

Nov 6, 2025

0001193125-25-2697318-K

Oct 31, 2025

194.2 KB

10-Q

Oct 31, 2025

0001193125-25-26077810-Q

Sep 30, 2025

32.9 MB

25 filings shown