Form4insider filings, from the source

Company · CIK 0000887343 · SIC 6022 — State Commercial Banks · Nasdaq

COLUMBIA BANKING SYSTEM, INC. · COLB

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $84k · 12sales $857k · 10net −$773k
$10k$10k$100k$100k$1M$1MbuyssalesAug 2016Apr 2018Dec 2019Jul 2021Mar 2023Nov 2024Jul 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Feb 25, 2015 AForm 4 →Feb 27, 6:45 pm ESTBarry RaySVP & CAO3,000——9,178— plan?
Feb 20, 2015 FForm 4 →Feb 24, 11:59 am ESTBarry RaySVP & CAO282$28.13$7,9346,178— plan?
Feb 20, 2015 FForm 4 →Feb 24, 11:59 am ESTAndy McDonaldEVP & CCO784$28.13$22,05427,041— plan?
Feb 20, 2015 FForm 4 →Feb 24, 11:54 am ESTMelanie J DresselPresident and CEO, Director1,675$28.10$47,06876,545— plan?
Jan 6, 2015 AForm 4 →Jan 7, 4:05 pm ESTClint SteinEVP & CFO67$23.99$1,60712,582— plan?
Jan 6, 2015 AForm 4 →Jan 7, 1:49 pm ESTDavid C LawsonEVP & Director of H.R.98$23.99$2,3514,746— plan?
Jan 6, 2015 AForm 4 →Jan 7, 1:44 pm ESTAndy McDonaldEVP & CCO181$23.99$4,34227,825— plan?

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 AForm 4 →Sep 15, 4:55 pm EDTLuis MachucaDirector594$30.48$18,10549,560—
Aug 14, 2026 MForm 4 →Aug 18, 4:50 pm EDTJudi GiemEVP CHRO2,393——13,108—
Jun 15, 2026 AForm 4 →Jun 16, 4:46 pm EDTLuis MachucaDirector563$31.78$17,89248,966—
Mar 27, 2017 EForm 4 →Mar 28, 4:39 pm EDTHadley S RobbinsINTERIM CEO & COO1,958——0—
Mar 9, 2016 MForm 4 →Mar 11, 4:10 pm ESTHadley S RobbinsEVP & COO1,608——0—