InsiderTrades

Form 4 for COLB COLUMBIA BANKING SYSTEM, INC.

Accepted 2026-05-18 17:13:25 ET · period of report 2026-05-14 · accession 0000887343-26-000146 · 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
2026-05-18 17:13 2026-05-14 COLB SCHULTZ JOHN F Dir A - Grant $0.00 +3,949 50.4K +9% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-14 A A 3,949 $0.00 50,384 D — — (F1) Beneficial ownership has been adjusted to correct a prior reporting error, as a disposition of 3,000 shares reported on August 29, 2024 was not reflected in subsequent ownership totals.