Public-Company Data
Columbia Bank: SEC Filings
Columbia Bank (or its holding company) is an SEC registrant. Ticker COLB. CIK 887343. Filings and disclosures below link to the original documents on SEC EDGAR. View all filings on EDGAR →
Recent SEC filings
| Filed | Form | Accession | Files | EDGAR |
|---|---|---|---|---|
| Sep 30, 2026 | 8-K | 0000887343-26-000181 | 16 | Open → |
| Aug 14, 2026 | 8-K | 0000887343-26-000173 | 16 | Open → |
| Aug 4, 2026 | 10-Q | 0000887343-26-000170 | 89 | Open → |
| Jul 30, 2026 | 8-K | 0000887343-26-000167 | 16 | Open → |
| Jun 30, 2026 | 8-K | 0000887343-26-000159 | 16 | Open → |
| May 15, 2026 | 8-K | 0000887343-26-000142 | 14 | Open → |
| May 15, 2026 | 8-K | 0000887343-26-000143 | 16 | Open → |
| May 5, 2026 | 10-Q | 0000887343-26-000135 | 89 | Open → |
| Apr 23, 2026 | 8-K | 0000887343-26-000132 | 51 | Open → |
| Mar 31, 2026 | 8-K | 0000887343-26-000116 | 16 | Open → |
| Feb 26, 2026 | 10-K | 0000887343-26-000088 | 174 | Open → |
| Feb 13, 2026 | 8-K | 0000887343-26-000039 | 16 | Open → |
| Jan 22, 2026 | 8-K | 0000887343-26-000012 | 49 | Open → |
| Dec 31, 2025 | 8-K | 0000887343-25-000280 | 16 | Open → |
| Nov 21, 2025 | 8-K | 0001193125-25-290691 | 14 | Open → |
| Nov 14, 2025 | 8-K | 0000887343-25-000271 | 16 | Open → |
| Nov 5, 2025 | 10-Q | 0000887343-25-000268 | 95 | Open → |
| Nov 4, 2025 | 8-K | 0001193125-25-264630 | 17 | Open → |
| Oct 30, 2025 | 8-K | 0000887343-25-000262 | 50 | Open → |
| Sep 2, 2025 | 8-K | 0001193125-25-193405 | 17 | Open → |
| Aug 29, 2025 | 8-K | 0000887343-25-000238 | 16 | Open → |
| Aug 15, 2025 | 8-K | 0000887343-25-000236 | 16 | Open → |
| Aug 6, 2025 | 8-K | 0000887343-25-000229 | 16 | Open → |
| Aug 6, 2025 | 10-Q | 0000887343-25-000233 | 88 | Open → |
| Jul 24, 2025 | 8-K | 0000887343-25-000221 | 57 | Open → |
| Jul 21, 2025 | 8-K | 0000887343-25-000212 | 16 | Open → |
| Jul 11, 2025 | Other | 0001193125-25-158233 | 4 | Open → |
| Jul 11, 2025 | 8-K | 0001193125-25-158231 | 14 | Open → |
| Jun 30, 2025 | 8-K | 0000887343-25-000208 | 16 | Open → |
| Jun 13, 2025 | Other | 0001193125-25-140750 | 4 | Open → |
| Jun 13, 2025 | Other | 0001193125-25-140728 | 33 | Open → |
| Jun 4, 2025 | Other | 0000000000-25-005911 | 5 | Open → |
| May 27, 2025 | Other | 0001193125-25-128060 | 28 | Open → |
| May 16, 2025 | 8-K | 0000887343-25-000172 | 17 | Open → |
| May 15, 2025 | 8-K | 0000887343-25-000169 | 15 | Open → |
| May 6, 2025 | 10-Q | 0000887343-25-000166 | 88 | Open → |
| May 5, 2025 | Other | 0001193125-25-112969 | 43 | Open → |
| May 5, 2025 | 8-K | 0000887343-25-000163 | 55 | Open → |
| Apr 25, 2025 | Other | 0001193125-25-094682 | 4 | Open → |
| Apr 25, 2025 | 8-K | 0001193125-25-094676 | 16 | Open → |
8-K material events
| Date | Item | Disclosure | EDGAR |
|---|---|---|---|
| Sep 30, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Sep 30, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Aug 14, 2026 | 8.01 | Other Events | Open → |
| Aug 14, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Jul 30, 2026 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Jul 30, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Jul 30, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Jul 1, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Jul 1, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| May 15, 2026 | 5.07 | Submission of Matters to a Vote of Security Holders | Open → |
| May 15, 2026 | 8.01 | Other Events | Open → |
| May 15, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Apr 23, 2026 | 2.02 | Results of Operations and Financial Condition | Open → |
| Apr 23, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Apr 23, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Mar 31, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Mar 31, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Feb 13, 2026 | 8.01 | Other Events | Open → |
| Feb 13, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Jan 22, 2026 | 2.02 | Results of Operations and Financial Condition | Open → |
| Jan 22, 2026 | 7.01 | Regulation FD Disclosure | Open → |
| Jan 22, 2026 | 9.01 | Financial Statements and Exhibits | Open → |
| Dec 31, 2025 | 7.01 | Regulation FD Disclosure | Open → |
| Dec 31, 2025 | 9.01 | Financial Statements and Exhibits | Open → |
| Nov 21, 2025 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Nov 14, 2025 | 8.01 | Other Events | Open → |
| Nov 14, 2025 | 9.01 | Financial Statements and Exhibits | Open → |
| Nov 4, 2025 | 5.02 | Departure/Election of Directors or Officers; Compensation | Open → |
| Nov 4, 2025 | 7.01 | Regulation FD Disclosure | Open → |
| Nov 4, 2025 | 9.01 | Financial Statements and Exhibits | Open → |
Officers & insiders
| Name | Title / role | As of |
|---|---|---|
| Stein Clint | Chair, CEO, President | Mar 2026 |
| Stein Clint | Chair, CEO, President | Mar 2026 |
| Stein Clint | Chair, CEO, President | Mar 2026 |
| Namdar Frank | EVP Chief Credit Officer | Mar 2026 |
| OGNALL ANDREW H | EVP Chief Risk Officer | Mar 2026 |
| BARUFFI KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Mar 2026 |
| Seda Ivan A | EVP, Chief Financial Officer | Feb 2026 |
M&A activity
| Date | Type | Role | Source |
|---|---|---|---|
| Jul 30, 2026 | Merger-related filing | Registrant | SEC Form 8-K |
| Nov 21, 2025 | Merger-related filing | Registrant | SEC Form 8-K |
| Nov 4, 2025 | Merger-related filing | Registrant | SEC Form 8-K |
| Sep 2, 2025 | Merger completed | Registrant | SEC Form 8-K |
| Sep 1, 2025 | Merger | Registrant | Federal Reserve NIC |
| Jul 11, 2025 | Merger communication | Registrant | SEC Form 425 |
| Jun 13, 2025 | Merger registration statement | Registrant | SEC Form S-4/A |
| May 28, 2025 | Merger registration statement | Registrant | SEC Form S-4 |
| May 6, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 25, 2025 | Merger announcement | Registrant | SEC Form 8-K |
| Apr 25, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 25, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 24, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 24, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 24, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 24, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 24, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 23, 2025 | Merger communication | Registrant | SEC Form 425 |
| Apr 2, 2025 | Merger-related filing | Registrant | SEC Form 8-K |
| May 9, 2024 | Merger-related filing | Registrant | SEC Form 8-K |
About this data
Filings, 8-K events, officer lists and M&A activity are sourced from SEC EDGAR and, for some M&A events, Federal Reserve NIC records. SEC disclosures are filed by the publicly-traded holding company, so officer and material-event data reflect the parent registrant. For the bank's regulatory financials, see its full profile and safety analysis.