JOHN M. HEYNEMAN JR - Director, 10%+ Owner at FIRST INTERSTATE BANCSYSTEM INC

Insider Transactions and Holdings

Entity Type: Individual
Role: Director, 10%+ Owner
Issuer Symbol: FIBK on Nasdaq
All Insider Reports: All Insider Reports

JOHN M. HEYNEMAN JR - trading volume in the past year for FIRST INTERSTATE BANCSYSTEM INC

	Shares	%	Avg Price	Total $
Buys
Sells	-78,835	100%	$31.40	-$2,475,429
Net	-78,835	-100%		-$2,475,429

Holdings reported by JOHN M. HEYNEMAN JR for FIRST INTERSTATE BANCSYSTEM INC

Security	Num Shares	Value	Price $	Transaction Date	Ownership	Underlying Class	Underlying Amount
Common Stock	1,414,636	$43,896,155	$31.03	21 Nov 2025	Indirect
Common Stock	47,482	$1,494,733	$31.48	21 Nov 2025	By Awe' LLC
Common Stock	30,154	$949,247	$31.48	21 Nov 2025	By Bench Ranch LLC
Common Stock	5,224	$164,451	$31.48	21 Nov 2025	Direct

Transactions reported by JOHN M. HEYNEMAN JR for FIRST INTERSTATE BANCSYSTEM INC

Sym	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.