John M. Heyneman Jr - Insider Trading & Ownership

Location: C/O First Interstate Bancsystem Inc, P O Box 30918, Billings, MT
Summary: The estimated net worth of John M. Heyneman Jr is at least $46.5M dollars as of November 25, 2025. John M. Heyneman Jr is the Director, 10%+ Owner of FIRST INTERSTATE BANCSYSTEM INC and owns shares of FIRST INTERSTATE BANCSYSTEM INC (FIBK) stock worth about $46.5M.
Signature: /s/ Kirk D. Jensen, Attorney-in-Fact for Reporting Person
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Ownership of John M. Heyneman Jr

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
FIBK	FIRST INTERSTATE BANCSYSTEM INC	Director, 10%+ Owner	$46.5M	-$2.48M	-5.05%	Nov 21, 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.