Insider Trading & Ownership of Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees

Location: Billings, MT
Summary: The estimated value of insider holdings of Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees is at least $7,351,065 dollars as of 01 Dec 2025. Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees is the 10%+ Owner of FIRST INTERSTATE BANCSYSTEM INC and owns shares of FIRST INTERSTATE BANCSYSTEM INC (FIBK) stock worth about $7.35M.
Signature: SUSAN SCOTT HEYNEMAN TRUST, SUSAN HEYNEMAN & FIRST INTERSTATE WEALTH MANAGEMENT CO-TRUSTEES, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person
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Ownership of Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
FIBK	FIRST INTERSTATE BANCSYSTEM INC	10%+ Owner	$7,351,065	-$4,519,450	-38%	01 Dec 2025

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

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