Brock Lakely, EVP, Chief Accounting Officer at COLUMBIA BANKING SYSTEM, INC. (COLB), sold 211 shares at $26.23 ($6K) on 2026-03-13, disclosed to the SEC on 2026-03-17.
Seasonal sale ($6k) by EVP, Chief Accounting Officer — this insider has traded COLB in March in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.