Brock Lakely

EVP, Chief Accounting Officer · 1 filing · Latest: Mar 13, 2026

COLUMBIA BANKING SYSTEM, INC.

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
COLB	Brock Lakely	EVP, Chief Accounting Officer	Mar 13, 2026	Sale	$26.23	211	$5.5K	11,104	—
COLB	Brock Lakely	EVP, Chief Accounting Officer	Mar 13, 2026	Option Exercise	$26.23	846	$22.2K	11,315	—