Geoffrey D. Scott - 31 Dec 2025 Form 5 Insider Report for FIRST INTERSTATE BANCSYSTEM INC (FIBK)

Role
10%+ Owner
Signature
Geoffrey D. Scott, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person
Issuer symbol
FIBK
Transactions as of
31 Dec 2025
Net transactions value
$0
Form type
5
Filing time
17 Feb 2026, 16:30:18 UTC
Previous filing
10 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Scott Geoffrey D 10%+ Owner P.O. BOX 7113, BILLINGS Geoffrey D. Scott, By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person 17 Feb 2026 0002022652

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FIBK Common Stock Gift $0 +236,808 $0.000000 236,808 04 Aug 2025 See footnote F1
transaction FIBK Common Stock Gift $0 +475 +22% $0.000000 2,675 05 Dec 2024 By Spouse F2
holding FIBK Common Stock 113,926 31 Dec 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reportable beneficial ownership acquired upon receipt of shares by gift by the reporting person of general partner interests in NBAR5 O Limited Partnership, which partnership holds such shares directly and with respect to which the reporting person previously held only limited partner interests. The reporting person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.
F2 End of period holdings previously reported on a Form 4 filed on December 10, 2025, was inadvertently underreported by 60 shares due to a scrivener's error.

Remarks:

As a result of agreements entered into among the reporting person, the issuer, and other stockholders of the issuer signatory thereto, the reporting person may be deemed a member of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities subject thereto. The reporting person disclaims beneficial ownership of any such securities, except to the extent of his pecuniary interest therein.