OLD SECOND BANCORP INC — 8-K Filings
377 8-K filings on record
This page lists all 8-K 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 377 8-K 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 |
|---|---|---|---|---|
| 8-K | 8-K | 0000357173-26-000014 | Mar 4, 2026 | — |
| 8-K | 8-K | 0000357173-26-000012 | Jan 29, 2026 | — |
| 8-K | 8-K | 0000357173-26-000010 | Jan 21, 2026 | — |
| 8-K | 8-K | 0000357173-26-000007 | Jan 20, 2026 | — |
| 8-K | 8-K | 0000357173-26-000005 | Jan 2, 2026 | — |
| 8-K | 8-K | 0000357173-25-000088 | Oct 22, 2025 | — |
| 8-K | 8-K | 0000357173-25-000086 | Oct 21, 2025 | — |
| 8-K | 8-K | 0000357173-25-000084 | Oct 1, 2025 | — |
| 8-K | 8-K | 0000357173-25-000079 | Sep 15, 2025 | Sep 14, 2025 |
| 8-K | 8-K | 0000357173-25-000073 | Jul 23, 2025 | — |
| 8-K | 8-K | 0000357173-25-000071 | Jul 15, 2025 | — |
| 8-K | 8-K | 0000357173-25-000069 | Jul 2, 2025 | — |
| 8-K | 8-K | 0000357173-25-000066 | Jul 1, 2025 | — |
| 8-K | 8-K | 0000357173-25-000060 | Jun 18, 2025 | — |
| 8-K | 8-K | 0000357173-25-000048 | May 28, 2025 | May 23, 2025 |
| 8-K | 8-K | 0000357173-25-000044 | May 22, 2025 | — |
| 8-K | 8-K | 0000357173-25-000041 | May 20, 2025 | — |
| 8-K | 8-K | 0000357173-25-000038 | May 20, 2025 | — |
| 8-K | 8-K | 0000357173-25-000032 | Apr 23, 2025 | — |
| 8-K | 8-K | 0000357173-25-000029 | Apr 15, 2025 | — |
| 8-K | 8-K | 0000357173-25-000026 | Apr 1, 2025 | — |
| 8-K | 8-K | 0000357173-25-000018 | Feb 25, 2025 | Feb 24, 2025 |
| 8-K | 8-K | 0000357173-25-000013 | Jan 22, 2025 | — |
| 8-K | 8-K | 0000357173-25-000008 | Jan 21, 2025 | — |
| 8-K | 8-K | 0000357173-25-000004 | Jan 2, 2025 | — |
| 8-K | 8-K | 0000357173-24-000082 | Dec 17, 2024 | — |
| 8-K | 8-K | 0000357173-24-000078 | Dec 9, 2024 | Dec 6, 2024 |
| 8-K | 8-K | 0000357173-24-000071 | Oct 16, 2024 | — |
| 8-K | 8-K | 0000357173-24-000068 | Oct 15, 2024 | — |
| 8-K | 8-K | 0000357173-24-000065 | Oct 1, 2024 | — |
| 8-K | 8-K | 0000357173-24-000062 | Aug 27, 2024 | Aug 26, 2024 |
| 8-K | 8-K | 0000357173-24-000056 | Jul 17, 2024 | — |
| 8-K | 8-K | 0000357173-24-000053 | Jul 16, 2024 | — |
| 8-K | 8-K | 0000357173-24-000049 | Jul 1, 2024 | — |
| 8-K | 8-K | 0000357173-24-000041 | May 23, 2024 | May 21, 2024 |
| 8-K | 8-K | 0000357173-24-000038 | May 21, 2024 | — |
| 8-K | 8-K | 0000357173-24-000031 | May 8, 2024 | — |
| 8-K | 8-K | 0000357173-24-000027 | Apr 17, 2024 | — |
| 8-K | 8-K | 0000357173-24-000023 | Apr 16, 2024 | — |
| 8-K | 8-K | 0000357173-24-000020 | Apr 1, 2024 | — |
| 8-K | 8-K | 0000357173-24-000017 | Mar 26, 2024 | Mar 20, 2024 |
| 8-K | 8-K | 0000357173-24-000012 | Jan 24, 2024 | — |
| 8-K | 8-K | 0000357173-24-000009 | Jan 16, 2024 | — |
| 8-K | 8-K | 0000357173-24-000006 | Jan 3, 2024 | — |
| 8-K | 8-K | 0000357173-24-000003 | Jan 2, 2024 | — |
| 8-K | 8-K | 0000357173-23-000081 | Oct 27, 2023 | — |
| 8-K | 8-K | 0000357173-23-000078 | Oct 18, 2023 | — |
| 8-K | 8-K | 0000357173-23-000075 | Oct 17, 2023 | — |
| 8-K | 8-K | 0000357173-23-000072 | Oct 2, 2023 | — |
| 8-K | 8-K | 0000357173-23-000069 | Sep 11, 2023 | Sep 8, 2023 |