# Columbia Banking System, Inc.: Form 8-K, filed Sep 2, 2025

- Company: [Columbia Banking System, Inc.](/companies/colb.md) (CIK 887343)
- Form: 8-K
- Filed: 2025-09-02
- Accepted by EDGAR: Sep 2, 2025, 08:01 ET
- Period: 2025-09-02
- Accession: 0001193125-25-193405
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/887343/000119312525193405/d21865d8k.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/887343/000119312525193405/

## Items reported

- Item 2.01: Completion of an acquisition or disposition
- Item 5.02: Departure or appointment of officers or directors
- Item 7.01: Regulation FD disclosure
- 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/887343/000119312525193405/d21865d8k.htm

Filed Sep 2, 2025.
Source: SEC EDGAR, the filing index for accession 0001193125-25-193405. Last ingested by Listed: Nov 5, 2026, 19:04 ET. No prices; not investment advice.