4/A
4/A filing
- Filing date
- 20 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
COLUMBIA BANKING SYSTEM, INC. SEC filing history
238 indexed filings. This is the filing history currently indexed by PortfolioSavvy, which may not include every SEC submission.
SEC filing history
Showing 26–50 of 238 matching filings.
Per page
25
Current page
2
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 16 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 17 Mar 2026
- Reporting date
- 13 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 05 Mar 2026
- Reporting date
- 03 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 02 Mar 2026
- Reporting date
- 01 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-K
10-K filing
- Filing date
- 26 Feb 2026
- Reporting date
- 31 Dec 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 20 Feb 2026
- Reporting date
- 18 Feb 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing