OLD SECOND BANCORP INC — 4 Filings
998 4 filings on record
This page lists all 4 filings submitted to the SEC by OLD SECOND BANCORP INC (OSBC), sorted by most recent first. Each row links to the full filing on EdgarLookup. OLD SECOND BANCORP INC has filed 998 4 documents with the SEC since 2015. To view all SEC filings by OLD SECOND BANCORP INC, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
144
144/A
15-12G
25-NSE
3
4
4/A
424B1
424B2
424B3
424B4
424B5
425
5
8-A12G
8-A12G/A
8-K
8-K/A
ARS
CORRESP
D
DEF 14A
DEFA14A
EFFECT
FWP
NT 11-K
PRE 14A
S-1
S-1/A
S-3
S-3/A
S-4
S-4/A
S-8
SC 13D
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | — | 0001184766-26-000008 | Mar 23, 2026 | Mar 20, 2026 |
| 4 | — | 0001840027-26-000008 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001314109-26-000006 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001598917-26-000006 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001184766-26-000006 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001673321-26-000006 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001296986-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001225765-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001896747-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001829064-26-000004 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001895832-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0002074132-26-000006 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001840027-26-000006 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001191044-26-000002 | Feb 24, 2026 | Feb 21, 2026 |
| 4 | — | 0001673321-26-000004 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001314109-26-000004 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001655300-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001598917-26-000004 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001244438-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001184766-26-000004 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0001184764-26-000002 | Feb 24, 2026 | Feb 17, 2026 |
| 4 | — | 0002074132-26-000004 | Feb 19, 2026 | Feb 18, 2026 |
| 4 | — | 0002074132-26-000002 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | — | 0001829064-26-000002 | Feb 10, 2026 | Feb 9, 2026 |
| 4 | — | 0001840027-26-000004 | Feb 5, 2026 | — |
| 4 | — | 0001424453-26-000002 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | — | 0001673321-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | — | 0001598917-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | — | 0001184766-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | — | 0001840027-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | — | 0001314109-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | — | 0001424453-25-000006 | Dec 9, 2025 | — |
| 4 | — | 0001424453-25-000004 | Nov 26, 2025 | — |
| 4 | — | 0001829064-25-000004 | Nov 13, 2025 | Nov 10, 2025 |
| 4 | — | 0002074132-25-000002 | Nov 7, 2025 | Oct 30, 2025 |
| 4 | — | 0001598917-25-000004 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001314109-25-000004 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001840027-25-000004 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001673321-25-000004 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001184766-25-000004 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001415889-25-021018 | Aug 5, 2025 | Aug 4, 2025 |
| 4 | — | 0001415889-25-020082 | Jul 21, 2025 | Jul 18, 2025 |
| 4 | — | 0001415889-25-019453 | Jul 8, 2025 | Jun 30, 2025 |
| 4 | — | 0001415889-25-019407 | Jul 7, 2025 | Jun 30, 2025 |
| 4 | — | 0001415889-25-019400 | Jul 7, 2025 | Jun 30, 2025 |
| 4 | — | 0001415889-25-019402 | Jul 7, 2025 | Jun 30, 2025 |
| 4 | — | 0001415889-25-019405 | Jul 7, 2025 | Jun 30, 2025 |
| 4 | — | 0001415889-25-012077 | May 6, 2025 | May 5, 2025 |
| 4 | — | 0001415889-25-012091 | May 6, 2025 | — |
| 4 | — | 0001415889-25-009419 | Apr 1, 2025 | Mar 31, 2025 |