# Columbia Banking System, Inc.: Form 8-K, filed Nov 14, 2025

- Company: [Columbia Banking System, Inc.](/companies/colb.md) (CIK 887343)
- Form: 8-K
- Filed: 2025-11-14
- Accepted by EDGAR: Nov 14, 2025, 14:44 ET
- Period: 2025-11-14
- Accession: 0000887343-25-000271
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/887343/000088734325000271/colb-20251114.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/887343/000088734325000271/

## Items reported

- Item 8.01: Other events
- Item 9.01: Financial statements and exhibits

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/887343/000088734325000271/colb-20251114.htm

Filed Nov 14, 2025.
Source: SEC EDGAR, the filing index for accession 0000887343-25-000271. Last ingested by Listed: Nov 5, 2026, 19:04 ET. No prices; not investment advice.