SEC Form 4 · accession 0001798077-26-000005
COLUMBIA BANKING SYSTEM, INC. · COLB
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Devine David Moore
Officer — EVP Chief Marketing Officer
Period of report
Jun 8, 2026
Accepted (ET)
Jun 10, 2026 · 4:52 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000887343
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jun 8, 2026 | S | 60 | $29.77 | D | 22,448 | D | |
| Common Stock | Jun 8, 2026 | S | 3,812 | $29.775 | D | 18,636 | D |
Table II — derivative securities
No Table II lines on this filing.