Karlyn M Knieriem

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Grant	Acquire A	No	No	0	5,092	0.00	25,084
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	367	9.25 k	19,992
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	240	6.05 k	20,359
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Grant	Acquire A	No	No	0	5,092	0.00	25,171
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	304	7.66 k	20,079
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	216	5.45 k	20,383
7 Mar 24	FIBK First Interstate BancSystem	Common Stock	Sell	Dispose S	No	No	26.76	2,900	77.60 k	20,599
15 Feb 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	26.78	620	16.60 k	23,499

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