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Columbia Banking System Inc SEC Filings
What Columbia Banking System Inc has told the SEC happened, by the 8-K items and forms it filed under: when it reported results, who joined or left, what it bought or sold, and whether its auditor or its accounts ever changed.
COLB overview →Filings on file
132
since Oct 27, 2016
Warning signs
0
none filed
Last results
Jul 23, 2026
8-K item 2.02
Industry
State Commercial Banks
SIC 6022
Newest first
Each label is a form type or an 8-K item as filed; each row links to the filing.
| Filed | What it reports | Document |
|---|---|---|
| Jul 30, 2026 | Executive or director change 8-K | Read ↗ |
| Nov 21, 2025 | Executive or director change 8-K | Read ↗ |
| Nov 4, 2025 | Executive or director change 8-K | Read ↗ |
| Sep 2, 2025 | Executive or director changeAcquisition or sale completed 8-K | Read ↗ |
| Apr 2, 2025 | Executive or director change 8-K | Read ↗ |
| May 9, 2024 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Mar 1, 2023 | Executive or director changeAcquisition or sale completedNew debt 8-K | Read ↗ |
| Jan 6, 2023 | Executive or director change 8-K | Read ↗ |
| Oct 15, 2021 | Executive or director changeMaterial agreement 8-K | Read ↗ |
| Dec 28, 2020 | Executive or director change 8-K | Read ↗ |
| Dec 1, 2020 | Executive or director change 8-K | Read ↗ |
| May 8, 2020 | Executive or director change 8-K | Read ↗ |
| Apr 13, 2020 | Executive or director change 8-K | Read ↗ |
| Mar 18, 2020 | Executive or director change 8-K | Read ↗ |
| Feb 28, 2020 | Executive or director change 8-K | Read ↗ |
| Jan 7, 2020 | Executive or director change 8-K | Read ↗ |
| Oct 3, 2019 | Executive or director change 8-K | Read ↗ |
| May 29, 2019 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Dec 14, 2018 | Executive or director change 8-K | Read ↗ |
| Jul 31, 2018 | Executive or director change 8-K | Read ↗ |
| Jun 8, 2018 | Executive or director change 8-K | Read ↗ |
| May 7, 2018 | Executive or director change 8-K | Read ↗ |
| May 4, 2018 | Executive or director change 8-K | Read ↗ |
| Jan 26, 2018 | Executive or director change 8-K | Read ↗ |
| Oct 31, 2017 | Executive or director change 8-K | Read ↗ |
| Oct 3, 2017 | Executive or director change 8-K | Read ↗ |
| Jul 27, 2017 | Executive or director change 8-K | Read ↗ |
| Jul 14, 2017 | Executive or director change 8-K | Read ↗ |
| Jun 29, 2017 | Executive or director change 8-K | Read ↗ |
| Feb 23, 2017 | Executive or director change 8-K | Read ↗ |
| Oct 28, 2016 | Executive or director change 8-K | Read ↗ |
Source: Columbia Banking System Inc's EDGAR filing history, the last ten years. The labels are the form types and 8-K item numbers the company filed under, not a reading of what it wrote — an item 5.02 can be a chief executive fired or a director retiring on schedule — so each row links to the filing.