PART I . In this Annual Report on Form 10-K, we refer to Columbia Banking System, Inc. as the "Company," "Columbia," "we," "us," "our," or similar references. Forward-Looking Statements This Annual Report on Form 10-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, which are intended to be covered by the safe harbor for "forward-looking statements" provided by the Private Securitie...
Q2 FY2026 — expected 2026-09-15
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-26 | 2025-12-31 | 0000887343-26-000088 | EDGAR | 97K words |
| 2025-02-25 | 2024-12-31 | 0000887343-25-000054 | EDGAR | — |
| 2024-02-27 | 2023-12-31 | 0000887343-24-000089 | EDGAR | — |
| 2023-02-24 | 2022-12-31 | 0000887343-23-000072 | EDGAR | — |
| 2022-02-25 | 2021-12-31 | 0000887343-22-000038 | EDGAR | — |
| 2021-02-26 | 2020-12-31 | 0000887343-21-000065 | EDGAR | — |
| 2020-02-27 | 2019-12-31 | 0000887343-20-000070 | EDGAR | — |
| 2019-02-28 | 2018-12-31 | 0000887343-19-000033 | EDGAR | — |
| 2018-03-01 | 2017-12-31 | 0000887343-18-000041 | EDGAR | — |
| 2017-03-01 | 2016-12-31 | 0000887343-17-000049 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-11-06 | 2025-09-30 | 0000887343-25-000268 | EDGAR | 49K words |
| 2025-08-06 | 2025-06-30 | 0000887343-25-000233 | EDGAR | — |
| 2025-05-06 | 2025-03-31 | 0000887343-25-000166 | EDGAR | — |
| 2024-11-05 | 2024-09-30 | 0000887343-24-000262 | EDGAR | — |
| 2024-08-06 | 2024-06-30 | 0000887343-24-000245 | EDGAR | — |
| 2024-05-07 | 2024-03-31 | 0000887343-24-000183 | EDGAR | — |
| 2023-11-03 | 2023-09-30 | 0000887343-23-000307 | EDGAR | — |
| 2023-08-03 | 2023-06-30 | 0000887343-23-000295 | EDGAR | — |
| 2023-05-09 | 2023-03-31 | 0000887343-23-000220 | EDGAR | — |
| 2022-10-28 | 2022-09-30 | 0000887343-22-000134 | EDGAR | — |
| 2022-08-04 | 2022-06-30 | 0000887343-22-000125 | EDGAR | — |
| 2022-05-05 | 2022-03-31 | 0000887343-22-000108 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-03-31 | 0000887343-26-000116 | EDGAR | 1K words |
| 2026-02-13 | 0000887343-26-000039 | EDGAR | — |
| 2026-01-22 | 0000887343-26-000012 | EDGAR | — |
| 2025-12-31 | 0000887343-25-000280 | EDGAR | — |
| 2025-11-21 | 0001193125-25-290691 | EDGAR | — |
| 2025-11-14 | 0000887343-25-000271 | EDGAR | — |
| 2025-11-04 | 0001193125-25-264630 | EDGAR | — |
| 2025-10-30 | 0000887343-25-000262 | EDGAR | — |
| 2025-09-02 | 0001193125-25-193405 | EDGAR | — |
| 2025-08-29 | 0000887343-25-000238 | EDGAR | — |
177 total filings indexed. 145 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0000887343 |
| Ticker | COLB |
| Exchange | Nasdaq |
| SIC | 6022: State Commercial Banks |
| Incorporated | WA |
| Website | https://www.columbiabank.com |
| Listed | 2023-03-01 |
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