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

Reporting relationship: 10%+ Owner
Issuer ticker: FIBK
Reported as of: 03 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Dec 2025, 16:14:17 UTC
Prior SEC filing: 14 Feb 2025
Source filing: View source filing
Reporting owner signature: Risa K Scott Trust Dtd 12/4/15 By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person

Key filing fact

Risa Kae Scott filed Form 4 for FIRST INTERSTATE BANCSYSTEM INC (FIBK) on 04 Dec 2025.

Key facts

This page summarizes Risa Kae Scott's Form 4 filing for FIRST INTERSTATE BANCSYSTEM INC (FIBK).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 04 Dec 2025, 16:14.

Change

Previous filing in this sequence was filed on 14 Feb 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (4)

CIK 0001798829 Primary reporting owner

Scott Risa Kae

Relationship: 10%+ Owner
Address: PO BOX 7113, BILLINGS,
Signature: Risa K Scott Trust Dtd 12/4/15 By: /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person
Signature date: 04 Dec 2025

CIK 0001908674

Risa K Scott TTEE Risa K Scott Trust Dtd 12/4/15

Relationship: 10%+ Owner
Address: P.O.BOX 7113, BILLINGS,
Signature: Risa K Scott Trust Dtd 12/4/15, Risa K Scott TTEE
Signature date: 04 Dec 2025

CIK 0001908770

Risa K. Scott & John Heyneman Jr., TTEEs FBO Risa K Scott Exemption Trust Under the Scott Family 1996 Trust

Relationship: 10%+ Owner
Address: P.O.BOX 7113, BILLINGS,
Signature: Risa K Scott & John Heyneman Jr TTEEs FBO Risa K Scott Exemption Trust
Signature date: 04 Dec 2025

CIK 0002056408

Risa K Scott Grantor Retained Annuity Trust Dtd 5/19/24

Relationship: 10%+ Owner
Address: P.O.BOX 7113, BILLINGS,
Signature: Risa K Scott Grantor Retained Annuity Trust Dtd 5/19/24
Signature date: 04 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FIBK transaction

Common Stock

Gift

Transaction value: $0
Shares: -3,000
Change %: -0.92%
Price: $0.000000
Shares after: 322,546
Date: 03 Dec 2025
Ownership: See Footnote
Footnotes: F1, F2

FIBK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 85,836
Date: 03 Dec 2025
Ownership: See Footnote
Footnotes: F1, F3

FIBK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 72,000
Date: 03 Dec 2025
Ownership: See Footnote
Footnotes: F1, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.