Info
Insider Ownership

Insider Trading & Ownership of John M. Heyneman Jr.

Location: Billings, MT
Summary: The estimated net worth of John M. Heyneman Jr. is at least $46,504,586 dollars as of 25 Nov 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	$46,504,586	-$2,424,331	-5%	21 Nov 2025

Insider Transactions Reported by John M. Heyneman Jr.:

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.