InsiderTrades

Form 4 for COLB COLUMBIA BANKING SYSTEM, INC.

Accepted 2025-03-05 00:00:00 ET · period of report 2025-03-04 · accession 0000887343-25-000113 · 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
2025-03-05 2025-03-04 COLB Nixon Torran B Senior Executive VP S - Sale $25.99 -4,481 104.9K -4% -$116.5K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-03-04 S D 4,481 $25.99 104,869 D — —