Lorrie Asker

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	8,443	0.00	14,782
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	304	7.66 k	6,339
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	152	3.83 k	6,643
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	114	2.87 k	6,795
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Grant	Acquire A	No	No	0	8,443	0.00	14,870
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	258	6.50 k	6,427
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	129	3.25 k	6,685
15 Mar 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.21	95	2.39 k	6,814
6 Mar 24	FIBK First Interstate BancSystem	Common Stock	Sell	Dispose S	No	No	26.05	1,921	50.04 k	6,909
9 Feb 24	FIBK First Interstate BancSystem	Common Stock	Payment of exercise	Dispose F	No	No	25.54	325	8.30 k	8,830

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