Susan Scott Heyneman - Feb 1, 2022 Form 3 Insider Report for FIRST INTERSTATE BANCSYSTEM INC (FIBK)

Role: 10%+ Owner
Signature: SUSAN SCOTT HEYNEMAN, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person
Stock symbol: FIBK
Transactions as of: Feb 1, 2022
Transactions value $: $0
Form type: 3
Date filed: 2/11/2022, 01:30 PM
Next filing: Mar 29, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	FIBK	Class A Common Stock						0	Feb 1, 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	FIBK	Class B Common Stock							Feb 1, 2022	Class A Common Stock	647K	$0.00	See footnote	F2, F3

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

Explanation of Responses:

Id	Content
F1	As a result of certain agreements entered into by and among the reporting persons, the Issuer, and certain other stockholders of the Issuer, the reporting persons may be deemed members of a group with the other signatories thereto and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein. The reporting persons expect to file future Forms 4, if any, together with Susan Scott Heyneman.
F2	The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder. The conversion feature of the Class B Common Stock does not expire.
F3	Composed of 646,756 shares held of record by Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees.

Remarks:

Exhibit 24 - Power of Attorney