Kevin P Riley

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.85	23	686.55	523
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.93	61	1.83 k	811
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.88	108	3.23 k	1,118
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.91	146	4.37 k	1,436
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.9	146	4.37 k	1,436
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Buy	Acquire P	Yes	No	29.88	98	2.93 k	1,448
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Gift	Acquire G	Yes	No	0	250	0.00	250
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Gift	Acquire G	Yes	No	0	250	0.00	500
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Gift	Acquire G	Yes	No	0	250	0.00	750
1 Aug 24	FIBK First Interstate BancSystem	Common Stock	Gift	Acquire G	Yes	No	0	250	0.00	1,010

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