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: 49
Latest filed: Apr 02, 2026
| Form | Count |
|---|---|
| 4 | 40 |
| 8-K | 8 |
| SCHEDULE 13G/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Apr 02, 2026 | 4 | Mar 31, 2026 | 0001840027-26-000010 | View |
| Apr 02, 2026 | 4 | Mar 31, 2026 | 0001314109-26-000008 | View |
| Apr 02, 2026 | 4 | Mar 31, 2026 | 0001673321-26-000008 | View |
| Apr 02, 2026 | 4 | Mar 31, 2026 | 0001184766-26-000010 | View |
| Apr 02, 2026 | 4 | Mar 31, 2026 | 0001598917-26-000008 | View |
| Apr 01, 2026 | 8-K | Apr 01, 2026 | 0000357173-26-000016 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-002002 | View |
| Mar 23, 2026 | 4 | Mar 20, 2026 | 0001184766-26-000008 | View |
| Mar 04, 2026 | 8-K | Mar 04, 2026 | 0000357173-26-000014 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001314109-26-000006 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001840027-26-000008 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001673321-26-000006 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001184766-26-000006 | View |
| Mar 04, 2026 | 4 | Mar 02, 2026 | 0001598917-26-000006 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001244438-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001184764-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001655300-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001895832-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001829064-26-000004 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0002074132-26-000006 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001598917-26-000004 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001840027-26-000006 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001673321-26-000004 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001314109-26-000004 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001184766-26-000004 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001191044-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001296986-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001225765-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 17, 2026 | 0001896747-26-000002 | View |
| Feb 19, 2026 | 4 | Feb 18, 2026 | 0002074132-26-000004 | View |
| Feb 18, 2026 | 4 | Feb 13, 2026 | 0002074132-26-000002 | View |
| Feb 10, 2026 | 4 | Feb 09, 2026 | 0001829064-26-000002 | View |
| Feb 05, 2026 | 4 | Feb 05, 2026 | 0001840027-26-000004 | View |
| Jan 29, 2026 | 8-K | Jan 29, 2026 | 0000357173-26-000012 | View |
| Jan 21, 2026 | 8-K | Jan 21, 2026 | 0000357173-26-000010 | View |
| Jan 20, 2026 | 8-K | Jan 20, 2026 | 0000357173-26-000007 | View |
| Jan 16, 2026 | 4 | Jan 15, 2026 | 0001424453-26-000002 | View |
| Jan 05, 2026 | 4 | Dec 31, 2025 | 0001840027-26-000002 | View |
| Jan 05, 2026 | 4 | Dec 31, 2025 | 0001673321-26-000002 | View |
| Jan 05, 2026 | 4 | Dec 31, 2025 | 0001598917-26-000002 | View |
| Jan 05, 2026 | 4 | Dec 31, 2025 | 0001184766-26-000002 | View |
| Jan 05, 2026 | 4 | Dec 31, 2025 | 0001314109-26-000002 | View |
| Jan 02, 2026 | 8-K | Jan 02, 2026 | 0000357173-26-000005 | View |
| Dec 09, 2025 | 4 | Dec 09, 2025 | 0001424453-25-000006 | View |
| Nov 26, 2025 | 4 | Nov 26, 2025 | 0001424453-25-000004 | View |
| Nov 13, 2025 | 4 | Nov 10, 2025 | 0001829064-25-000004 | View |
| Nov 07, 2025 | 4 | Oct 30, 2025 | 0002074132-25-000002 | View |
| Oct 22, 2025 | 8-K | Oct 22, 2025 | 0000357173-25-000088 | View |
| Oct 21, 2025 | 8-K | Oct 21, 2025 | 0000357173-25-000086 | View |