SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* HEYNEMAN JOHN M JR (Last) (First) (Middle) P.O. BOX 7113, (Street) BILLINGS MT 59103 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 02/01/2022	3. Issuer Name and Ticker or Trading Symbol FIRST INTERSTATE BANCSYSTEM INC [ FIBK ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	6,814(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B Common Stock	(2)	(2)	Class A Common Stock	1,412,385	$0.00	I	See footnote(3)

1. Name and Address of Reporting Person* HEYNEMAN JOHN M JR (Last) (First) (Middle) P.O. BOX 7113, (Street) BILLINGS MT 59103 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Riki Rae Scott Davidson & John Heyneman Jr., Trustees FBO Riki Scott Davidson Exemption Trust Under the Scott Family 1996 Trust (Last) (First) (Middle) P.O. BOX 7113, (Street) BILLINGS MT 59103 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Rae Ann Morss & John Heyneman Jr., Trustees FBO Rae Ann Morss Exemption Trust Under the Scott Family 1996 Trust (Last) (First) (Middle) P.O. BOX 7113, (Street) BILLINGS MT 59103 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* John M Heyneman Jr. Trust (Last) (First) (Middle) 4100 BIG HORN AVE, (Street) SHERIDAN WY 82801 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Towanda Investments Limited Partnership (Last) (First) (Middle) 4100 BIG HORN AVE, (Street) SHERIDAN WY 82801 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. 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 John M. Heyneman, Jr.

2. 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.

3. Composed of 139,921 shares held of record by John M Heyneman Jr. Trust, 15,000 shares held of record by John M Heyneman Jr., 85,836 shares held of record by Riki Rae Scott Davidson & John Heyneman Jr., Trustees FBO Riki Scott Davidson Exemption Trust Under the Scott Family 1996 Trust, 85,836 shares held of record by Rae Ann Morss & John Heyneman Jr., Trustees FBO Rae Ann Morss Exemption Trust Under the Scott Family 1996 Trust, and 1,085,792 shares held of record by Towanda Investments Limited Partnership.

Remarks:

Exhibit 24 - Power of Attorney

	JOHN M. HEYNEMAN, JR., By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	02/10/2022
	JOHN M HEYNEMAN JR. TRUST, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	02/10/2022
	RIKI RAE SCOTT DAVIDSON & JOHN HEYNEMAN JR., TRUSTEES FBO RIKI SCOTT DAVIDSON EXEMPTION TRUST UNDER THE SCOTT FAMILY 1996 TRUST, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	02/10/2022
	RAE ANN MORSS & JOHN HEYNEMAN JR., TRUSTEES FBO RAE ANN MORSS EXEMPTION TRUST UNDER THE SCOTT FAMILY 1996 TRUST, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	02/10/2022
	TOWANDA INVESTMENTS LIMITED PARTNERSHIP, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	02/10/2022
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
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