Form4insider filings, from the source

Insider · CIK 0001798077

Devine David Moore

Files at: COLB. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $115k · 1net −$115k
$10k$10k$100k$100k$1M$1MbuyssalesMar 27Apr 26May 27Jun 27Jul 28Aug 28Sep 27

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 8, 2026 SForm 4 →Jun 10, 4:52 pm EDTCOLUMBIA BANKING SYSTEM, INC.COLB3,872$29.77$115,28818,636−17.2%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.