Form4insider filings, from the source

Insider · CIK 0001267342

Steven R Gardner

Files at: COLB, PPBI. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 4, 2026 AForm 4 →Sep 8, 5:24 pm EDTCOLUMBIA BANKING SYSTEM, INC.COLB2,577——2,577—

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.