Cort L O'haver

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
19 Apr 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	18.31	5,170	94.66 k	421,776
19 Apr 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	18.31	21,655	396.50 k	426,946
8 Mar 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	19.51	3,282	64.03 k	451,968
8 Mar 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	19.51	13,314	259.76 k	455,250
1 Mar 24	COLB Columbia Banking System	Common Stock	Grant	Acquire A	No	No	17.87	55,959	999.99 k	468,564
1 Mar 24	COLB Columbia Banking System	RSU Common Stock	Grant	Acquire A	No	No	17.87	41,969	749.99 k	83,938
1 Mar 24	COLB Columbia Banking System	RSU Common Stock	Grant	Acquire A	No	No	17.87	41,969	749.99 k	41,969
28 Feb 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	17.76	9,465	168.10 k	414,488
15 Feb 24	COLB Columbia Banking System	Common Stock	Payment of exercise	Dispose F	No	No	19.01	5,883	111.84 k	451,227

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.