Statement of Changes in Beneficial Ownership (Form 4)

Ownership Submission

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * SCOTT JAMES R 2. Issuer Name and Ticker or Trading Symbol FIRST INTERSTATE BANCSYSTEM INC [FIBK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) PO BOX 7113 3. Date of Earliest Transaction (Month/Day/Year) 12/11/2024 (Street) BILLINGS, MT 59103 4. If Amendment, Date 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 (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 12/11/2024 G 727 D $ 0 4,387,289(1) I see footnote(2)(3) Common Stock 12/11/2024 G 727 A $ 0 4,388,016(1) I see footnote(2)(3) Common Stock 12/11/2024 G 727 D $ 0 4,387,289(4) I see footnote(2)(3) Common Stock 12/11/2024 G 727 A $ 0 4,388,016(4) I see footnote(2)(3) Common Stock 21,333 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)	5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)	6. Date Exercisable and Expiration Date (Month/Day/Year)	7. Title and Amount of Underlying Securities (Instr. 3 and 4)	8. Price of Derivative Security (Instr. 5)	9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Director	10% Owner	Officer	Other
SCOTT JAMES R PO BOX 7113 BILLINGS, MT 59103	X	X
James R Scott Trust, James R Scott & First Interstate Wealth Management Co-TTEEs P.O. BOX 7113 BILLINGS, MT 59103		X
J.S. Investments Limited Partnership P.O. BOX 7113 BILLINGS, MT 59103		X
James R & Christine M Scott Foundation P.O. BOX 7113 BILLINGS, MT 59103		X
Foundation for Community Vitality P.O. BOX 7113 BILLINGS, MT 59103		X
James F Heyneman Conservatorship, James Scott, Conservator P.O. BOX 7113 BILLINGS, MT 59103		X
James F Heyneman Trust, James Scott & First Interstate Wealth Management Co-Trustees P.O. BOX 7113 BILLINGS, MT 59103		X

Signatures

/s/ Kirk D. Jensen, as attorney in fact for reporting person	12/13/2024
**Signature of Reporting Person	Date
JAMES R SCOTT TRUST, JAMES R SCOTT & FIRST INTERSTATE WEALTH MANAGEMENT CO-TTEES, by +	12/13/2024
**Signature of Reporting Person	Date
J.S. Investments Limited Partnership, by: +	12/13/2024
**Signature of Reporting Person	Date
JAMES F HEYNEMAN CONSERVATORSHIP, JAMES SCOTT, CONSERVATOR, by: +	12/13/2024
**Signature of Reporting Person	Date
JAMES R AND CHRISTINE M SCOTT FOUNDATION, By: +	12/13/2024
**Signature of Reporting Person	Date
FOUNDATION FOR COMMUNITY VITALITY, by:+	12/13/2024
**Signature of Reporting Person	Date
JAMES F HEYNEMAN TRUST, JAMES SCOTT & FIRST INTERSTATE WEALTH MANAGEMENT CO-TRUSTEES, by: +	12/13/2024
**Signature of Reporting Person	Date
+/s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person	12/13/2024
**Signature of Reporting Person	Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares disposed of by James R. Scott's spouse to Foundation for Community Vitality, and shares acquired by Foundation for Community Vitality from James R. Scott's spouse as a bona fide gift.
(2)	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 and 5, if any, together with James R. Scott with the indication of direct or indirect ownership in Tables I and II being made from James R. Scott's perspective unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons.
(3)	Composed of 1,969,304 shares held of record by James R Scott Trust, James R Scott & First Interstate Wealth Management Co-TTEEs, 15,660 shares held of record by James R Scott's 401k, 35,240 shares held of record by James R and Christine M Scott Foundation, 1,901,036 shares held of record by JS Investments Limited Partnership, 345,053 shares held of record by Foundation for Community Vitality, 73,002 shares held of record by James F Heyneman Conservatorship, James Scott, Conservator, 7,096 shares held of record by James F Heyneman Trust, James Scott & First Interstate Wealth Management Co-Trustees, and 41,625 shares held of record by James R. Scott's spouse.
(4)	Shares disposed of by James R. Scott Trust, James R Scott & First Interstate Wealth Managment Co-TTEEs's to Foundation for Community Vitality, and shares acquired by Foundation for Community Vitality from James R. Scott Trust, James R Scott & First Interstate Wealth Managment Co-TTEEs's, as a bona fide gift.

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