Kumi Yamamoto Baruffi

EVP General Counsel, Corp Sec · 1 filing · Latest: Mar 13, 2026

COLUMBIA BANKING SYSTEM, INC.

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
COLB	Kumi Yamamoto Baruffi	EVP General Counsel, Corp Sec	Mar 13, 2026	Sale	$26.23	937	$24.6K	53,715	Mar 18 12:26 AM
COLB	Kumi Yamamoto Baruffi	EVP General Counsel, Corp Sec	Mar 13, 2026	Option Exercise	$26.23	2,381	$62.5K	54,652	Mar 18 12:26 AM