FIRST BUSINESS FINANCIAL SERVICES, INC. — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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13F-HR
13F-HR/A
144
3
3/A
4
4/A
424B3
424B4
425
5
8-A12B/A
8-K
8-K/A
CORRESP
D
D/A
DEF 14A
DEFA14A
EFFECT
FWP
N-PX
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-4
S-4/A
S-8
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001235 | Mar 26, 2026 | — |
| EFFECT | — | 9999999995-26-000820 | Mar 13, 2026 | — |
| 8-K | 8-K | 0001193125-26-104126 | Mar 12, 2026 | — |
| DEFA14A | DEFA14A | 0001104659-26-025239 | Mar 9, 2026 | — |
| DEFA14A | DEFA14A | 0001193125-26-092621 | Mar 5, 2026 | — |
| DEF 14A | DEF 14A | 0001193125-26-092613 | Mar 5, 2026 | — |
| S-3 | FORM S-3 | 0001104659-26-022926 | Mar 3, 2026 | — |
| 10-K | 10-K | 0001193125-26-071523 | Feb 25, 2026 | Dec 31, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000130 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000129 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000128 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000127 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000126 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000125 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000124 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000123 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000122 | Feb 18, 2026 | Feb 16, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000121 | Feb 18, 2026 | Feb 16, 2026 |
| 3 | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-26-000071 | Feb 9, 2026 | Jan 30, 2026 |
| 13F-HR | — | 0001140361-26-004002 | Feb 6, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001193125-26-035684 | Feb 3, 2026 | — |
| 8-K | 8-K | 0001193125-26-033596 | Feb 2, 2026 | Jan 29, 2026 |
| 8-K | 8-K | 0001193125-26-029321 | Jan 29, 2026 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-25-000161 | Nov 14, 2025 | Nov 12, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0000892712-25-000145 | Nov 10, 2025 | Nov 7, 2025 |
| 8-K | 8-K | 0001193125-25-274355 | Nov 10, 2025 | — |
| 8-K | 8-K | 0001193125-25-269731 | Nov 6, 2025 | Oct 31, 2025 |
| 10-Q | 10-Q | 0001193125-25-260778 | Oct 31, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001193125-25-258515 | Oct 30, 2025 | — |
| 13F-HR | — | 0001140361-25-039810 | Oct 30, 2025 | Sep 30, 2025 |
| SCHEDULE 13G/A | — | 0002052113-25-003604 | Oct 17, 2025 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-014669 | Aug 19, 2025 | Aug 16, 2025 |
| N-PX | — | 0001438934-25-000646 | Aug 11, 2025 | Jun 30, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-013444 | Aug 1, 2025 | Jul 30, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-013441 | Aug 1, 2025 | Jul 30, 2025 |
| 13F-HR | — | 0001140361-25-028130 | Jul 31, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0000950170-25-100567 | Jul 31, 2025 | Jul 25, 2025 |
| 8-K | 8-K | 0000950170-25-099399 | Jul 29, 2025 | — |
| 10-Q | 10-Q | 0000950170-25-098776 | Jul 25, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0000950170-25-098323 | Jul 24, 2025 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009898 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009895 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009884 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009881 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009880 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009878 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009877 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009876 | May 20, 2025 | May 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009873 | May 20, 2025 | May 16, 2025 |
| 3 | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009008 | May 9, 2025 | May 1, 2025 |