Old Second Bancorp Inc (OSBC)
CIK 357173 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Old Second Bancorp Inc.
Recent SEC filings
| Filed | Form | Accession number |
|---|---|---|
| Sep 11, 2026 | 4 | 0001184766-26-000020 |
| Sep 8, 2026 | 144 | 0001969223-26-001003 |
| Sep 8, 2026 | 4 | 0001184764-26-000008 |
| Sep 8, 2026 | 4/A | 0001184764-26-000006 |
| Sep 3, 2026 | 4 | 0001184764-26-000004 |
| Sep 3, 2026 | 4 | 0002074132-26-000008 |
| Sep 2, 2026 | 144 | 0001949846-26-000561 |
| Aug 18, 2026 | S-3ASR | 0000357173-26-000048 |
| Aug 13, 2026 | 4 | 0001314109-26-000014 |
| Aug 12, 2026 | 4 | 0001314109-26-000012 |
| Aug 11, 2026 | 144 | 0001949846-26-000491 |
| Aug 11, 2026 | 4 | 0001829064-26-000008 |
| Aug 6, 2026 | 10-Q | 0000357173-26-000045 |
| Jul 22, 2026 | 8-K | 0000357173-26-000042 |
| Jul 21, 2026 | 8-K | 0000357173-26-000039 |
| Jul 8, 2026 | 8-K | 0000357173-26-000037 |
| Jul 2, 2026 | 4 | 0001314109-26-000010 |
| Jul 2, 2026 | 4 | 0001184766-26-000018 |
| Jul 2, 2026 | 4 | 0001840027-26-000012 |
| Jul 2, 2026 | 4 | 0001598917-26-000010 |
| Jul 2, 2026 | 4 | 0001673321-26-000012 |
| Jul 1, 2026 | 8-K | 0000357173-26-000035 |
| Jun 29, 2026 | 11-K | 0000357173-26-000033 |
| Jun 25, 2026 | 8-K | 0000357173-26-000030 |
| Jun 9, 2026 | 8-K | 0000357173-26-000028 |