Risa Kae Scott - 03 Dec 2025 Form 4 Insider Report for FIRST INTERSTATE BANCSYSTEM INC (FIBK)

Role
10%+ Owner
Signature
Risa K Scott Trust Dtd 12/4/15 By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person
Issuer symbol
FIBK
Transactions as of
03 Dec 2025
Net transactions value
$0
Form type
4
Filing time
04 Dec 2025, 16:14:17 UTC
Previous filing
14 Feb 2025
SEC
View on sec.gov

Reporting Owners (4)

Name Relationship Address Signature Signature date CIK
Scott Risa Kae 10%+ Owner PO BOX 7113, BILLINGS, Risa K Scott Trust Dtd 12/4/15 By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person 04 Dec 2025 0001798829
Risa K Scott TTEE Risa K Scott Trust Dtd 12/4/15 10%+ Owner P.O.BOX 7113, BILLINGS, Risa K Scott Trust Dtd 12/4/15, Risa K Scott TTEE 04 Dec 2025 0001908674
Risa K. Scott & John Heyneman Jr., TTEEs FBO Risa K Scott Exemption Trust Under the Scott Family 1996 Trust 10%+ Owner P.O.BOX 7113, BILLINGS, Risa K Scott & John Heyneman Jr TTEEs FBO Risa K Scott Exemption Trust 04 Dec 2025 0001908770
Risa K Scott Grantor Retained Annuity Trust Dtd 5/19/24 10%+ Owner P.O.BOX 7113, BILLINGS, Risa K Scott Grantor Retained Annuity Trust Dtd 5/19/24 04 Dec 2025 0002056408

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FIBK Common Stock Gift $0 -3,000 -0.92% $0.000000 322,546 03 Dec 2025 See Footnote F1, F2
holding FIBK Common Stock 85,836 03 Dec 2025 See Footnote F1, F3
holding FIBK Common Stock 72,000 03 Dec 2025 See Footnote F1, F4
* 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 Risa K Scott.
F2 Composed of 322,546 shares held of record by Risa K. Scott TTEE, Risa K Scott Trust dtd 12/4/15, over which Risa K Scott has sole voting & dispositive power.
F3 Composed of 85,836 shares held of record by Risa K. Scott and John Heyneman Jr., TTEEs FBO Risa K. Scott Exemption Trust under the Scott Family 1996 Trust, over which Ms. Scott has shared voting and dispositive power with John Heyneman Jr.
F4 Composed of 72,000 shares held of record by the Risa K Scott Grantor Retained Annuity Trust dtd 5/29/24 over Risa K Scott has sole voting and dispositive power.