OLD SECOND BANCORP INC - OSBC
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 52
Latest filed: Oct 30, 2026
| Form | Count |
|---|---|
| 4 | 24 |
| 8-K | 12 |
| 4/A | 10 |
| 144 | 4 |
| SCHEDULE 13G | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Oct 30, 2026 | SCHEDULE 13G | — | 0002100119-26-001679 | View |
| Oct 21, 2026 | 4 | May 11, 2021 | 0001244438-26-000006 | View |
| Oct 21, 2026 | 8-K | Oct 21, 2026 | 0000357173-26-000057 | View |
| Oct 21, 2026 | 4/A | Feb 21, 2026 | 0001895832-26-000004 | View |
| Oct 21, 2026 | 4/A | Feb 21, 2026 | 0001244438-26-000004 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001191044-26-000004 | View |
| Oct 20, 2026 | 8-K | Oct 20, 2026 | 0000357173-26-000055 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001296986-26-000004 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001225765-26-000003 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001896747-26-000004 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001829064-26-000010 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001184764-26-000010 | View |
| Oct 20, 2026 | 4/A | Feb 21, 2026 | 0001655300-26-000004 | View |
| Oct 19, 2026 | 8-K | Oct 14, 2026 | 0000357173-26-000052 | View |
| Oct 08, 2026 | SCHEDULE 13G | — | 0000354204-26-001084 | View |
| Oct 01, 2026 | 4 | Sep 30, 2026 | 0001314109-26-000016 | View |
| Oct 01, 2026 | 4 | Sep 30, 2026 | 0001840027-26-000014 | View |
| Oct 01, 2026 | 4 | Sep 30, 2026 | 0001598917-26-000012 | View |
| Oct 01, 2026 | 4 | Sep 30, 2026 | 0001673321-26-000014 | View |
| Oct 01, 2026 | 4 | Sep 30, 2026 | 0001184766-26-000024 | View |
| Oct 01, 2026 | 8-K | Oct 01, 2026 | 0000357173-26-000050 | View |
| Sep 23, 2026 | 4 | Sep 23, 2026 | 0001184766-26-000022 | View |
| Sep 23, 2026 | 144 | — | 0001949846-26-000595 | View |
| Sep 11, 2026 | 4 | Sep 04, 2026 | 0001184766-26-000020 | View |
| Sep 08, 2026 | 144 | — | 0001969223-26-001003 | View |
| Sep 08, 2026 | 4/A | Sep 03, 2026 | 0001184764-26-000006 | View |
| Sep 08, 2026 | 4 | Sep 08, 2026 | 0001184764-26-000008 | View |
| Sep 03, 2026 | 4 | Sep 02, 2026 | 0002074132-26-000008 | View |
| Sep 03, 2026 | 4 | Sep 03, 2026 | 0001184764-26-000004 | View |
| Sep 02, 2026 | 144 | — | 0001949846-26-000561 | View |
| Aug 13, 2026 | 4 | Aug 12, 2026 | 0001314109-26-000014 | View |
| Aug 12, 2026 | 4 | Aug 11, 2026 | 0001314109-26-000012 | View |
| Aug 11, 2026 | 4 | Aug 10, 2026 | 0001829064-26-000008 | View |
| Aug 11, 2026 | 144 | — | 0001949846-26-000491 | View |
| Jul 22, 2026 | 8-K | Jul 22, 2026 | 0000357173-26-000042 | View |
| Jul 21, 2026 | 8-K | Jul 21, 2026 | 0000357173-26-000039 | View |
| Jul 08, 2026 | 8-K | Jul 07, 2026 | 0000357173-26-000037 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0001184766-26-000018 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0001598917-26-000010 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0001840027-26-000012 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0001314109-26-000010 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0001673321-26-000012 | View |
| Jul 01, 2026 | 8-K | Jul 01, 2026 | 0000357173-26-000035 | View |
| Jun 25, 2026 | 8-K | Jun 25, 2026 | 0000357173-26-000030 | View |
| Jun 09, 2026 | 8-K | Jun 05, 2026 | 0000357173-26-000028 | View |
| May 26, 2026 | 4 | May 22, 2026 | 0001184766-26-000016 | View |
| May 21, 2026 | 4 | May 21, 2026 | 0001184766-26-000014 | View |
| May 20, 2026 | 8-K | May 19, 2026 | 0000357173-26-000026 | View |
| May 19, 2026 | 8-K | May 19, 2026 | 0000357173-26-000024 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001829064-26-000006 | View |
| May 11, 2026 | 4 | May 11, 2026 | 0001673321-26-000010 | View |
| May 11, 2026 | 4 | May 08, 2026 | 0001184766-26-000012 | View |