InsiderTrades

Form 4 for COLB COLUMBIA BANKING SYSTEM, INC.

Accepted 2025-03-04 00:00:00 ET · period of report 2025-02-28 · accession 0000887343-25-000090 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
M 2025-03-04 2025-02-28 COLB Anderson Drew K Chief Administrative Off F - Tax $26.73 -3,071 25.3K -11% -$82.1K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-02-28 F D 1,944 $26.73 23,342 D — —
2 Common Common Stock 2025-02-28 F D 1,127 $26.73 25,286 D — —