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: 90
Latest filed: May 18, 2026
| Form | Count |
|---|---|
| 4 | 75 |
| 8-K | 7 |
| 144 | 3 |
| SCHEDULE 13G | 2 |
| 4/A | 2 |
| SCHEDULE 13G/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| 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 |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100119-26-000319 | View |
| Apr 23, 2026 | 8-K | Apr 23, 2026 | 0000887343-26-000132 | View |
| Apr 16, 2026 | 4 | Apr 15, 2026 | 0001740374-26-000004 | View |
| Mar 31, 2026 | 8-K | Mar 31, 2026 | 0000887343-26-000116 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001080 | View |
| Mar 20, 2026 | 4/A | Mar 13, 2026 | 0000887343-26-000106 | View |
| Mar 20, 2026 | 4/A | Mar 13, 2026 | 0000887343-26-000107 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001955918-26-000003 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001619728-26-000003 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001810107-26-000007 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001740374-26-000002 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001796657-26-000005 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001798077-26-000002 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001759802-26-000008 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001689701-26-000004 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001606248-26-000002 | View |
| Mar 17, 2026 | 4 | Mar 13, 2026 | 0001550429-26-000002 | View |
| Mar 17, 2026 | 4 | Mar 16, 2026 | 0001133099-26-000005 | View |
| Mar 05, 2026 | 4 | Mar 03, 2026 | 0000887343-26-000103 | View |
| Mar 04, 2026 | 144 | — | 0001959173-26-001859 | View |
| Mar 03, 2026 | 144 | — | 0001959173-26-001788 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000090 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000092 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0001810107-26-000005 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000094 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000096 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000098 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0001759802-26-000006 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0001689701-26-000002 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000100 | View |
| Mar 02, 2026 | 4 | Mar 01, 2026 | 0000887343-26-000102 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000065 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000067 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000069 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000071 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000073 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000075 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000077 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0001759802-26-000004 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000079 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000081 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0000887343-26-000083 | View |
| Feb 20, 2026 | 4 | Feb 18, 2026 | 0002099171-26-000002 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000047 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000049 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000051 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000053 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000055 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000057 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000059 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000061 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0000887343-26-000063 | View |
| Feb 13, 2026 | 8-K | Feb 13, 2026 | 0000887343-26-000039 | View |
| Feb 10, 2026 | SCHEDULE 13G | — | 0000902219-26-000055 | View |
| Feb 05, 2026 | 4 | Dec 03, 2025 | 0001133099-26-000003 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000026 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000028 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0001810107-26-000002 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0001796657-26-000002 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000030 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0001759802-26-000002 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000032 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000034 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0000887343-26-000036 | View |
| Feb 03, 2026 | 4 | Jan 30, 2026 | 0000887343-26-000024 | View |
| Jan 30, 2026 | 144 | — | 0001959173-26-000499 | View |
| Jan 22, 2026 | 8-K | Jan 22, 2026 | 0000887343-26-000012 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000013 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000014 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000015 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000016 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000017 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000018 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000019 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000020 | View |
| Jan 22, 2026 | 4 | Jan 20, 2026 | 0000887343-26-000021 | View |
| Dec 31, 2025 | 8-K | Dec 31, 2025 | 0000887343-25-000280 | View |
| Dec 31, 2025 | 4 | Dec 31, 2025 | 0000887343-25-000284 | View |