Clint Stein

Director, Chair, CEO, President · 1 filing · Latest: Mar 13, 2026

COLUMBIA BANKING SYSTEM, INC.

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
COLB	Clint Stein	Director, Chair, CEO, President	Mar 13, 2026	Tax Withholding	$26.23	7,151	$187.6K	151,584	Mar 17 8:48 PM
COLB	Clint Stein	Director, Chair, CEO, President	Mar 13, 2026	Option Exercise	$26.23	18,171	$476.6K	158,735	Mar 17 8:48 PM