COLUMBIA BANKING SYSTEM, INC. - COLB
All tracked SEC files for this issuer. Showing up to 200 latest records.
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Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 30
Latest filed: Oct 30, 2026
| Form | Count |
|---|---|
| 4 | 18 |
| 8-K | 9 |
| 144 | 2 |
| SCHEDULE 13G/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Oct 30, 2026 | 4 | Oct 29, 2026 | 0000887343-26-000185 | View |
| Oct 29, 2026 | 144 | — | 0001959173-26-007540 | View |
| Oct 27, 2026 | 8-K | Oct 27, 2026 | 0001193125-26-434182 | View |
| Oct 22, 2026 | 8-K | Oct 22, 2026 | 0000887343-26-000184 | View |
| Sep 30, 2026 | 8-K | Sep 30, 2026 | 0000887343-26-000181 | View |
| Sep 15, 2026 | 4 | Sep 14, 2026 | 0000887343-26-000178 | View |
| Sep 08, 2026 | 4 | Sep 04, 2026 | 0001267342-26-000003 | View |
| Sep 04, 2026 | 4 | Sep 02, 2026 | 0001084960-26-000007 | View |
| Aug 18, 2026 | 4 | Aug 14, 2026 | 0000887343-26-000174 | View |
| Aug 14, 2026 | 8-K | Aug 14, 2026 | 0000887343-26-000173 | View |
| Aug 13, 2026 | SCHEDULE 13G/A | — | 0000902219-26-000265 | View |
| Jul 30, 2026 | 8-K | Jul 28, 2026 | 0000887343-26-000167 | View |
| Jul 23, 2026 | 8-K | Jul 23, 2026 | 0000887343-26-000165 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0000887343-26-000161 | View |
| Jul 01, 2026 | 8-K | Jun 30, 2026 | 0000887343-26-000159 | View |
| Jun 16, 2026 | 4 | Jun 15, 2026 | 0001133099-26-000010 | View |
| Jun 10, 2026 | 4 | Jun 08, 2026 | 0001798077-26-000005 | View |
| Jun 08, 2026 | 144 | — | 0001959173-26-004456 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001713258-26-000002 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001133099-26-000007 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001284574-26-000003 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0000887343-26-000146 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0000887343-26-000147 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001610217-26-000002 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001222385-26-000002 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001481735-26-000003 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001537873-26-000002 | View |
| May 18, 2026 | 4 | May 14, 2026 | 0001610387-26-000002 | View |
| May 15, 2026 | 8-K | May 14, 2026 | 0000887343-26-000142 | View |
| May 15, 2026 | 8-K | May 15, 2026 | 0000887343-26-000143 | View |