| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SCOTT JAMES R | 10%+ Owner | P.O. BOX 7113, BILLINGS, | JAMES R SCOTT, By: ++ | 17 Feb 2026 | 0001198533 |
| James R Scott Trust, James R Scott & First Interstate Wealth Management Co-TTEEs | 10%+ Owner | P.O. BOX 7113, BILLINGS, | James R Scott Trust, James R Scott & First Interstate Wealth Management Co-TTEEs, By:++ | 17 Feb 2026 | 0001908712 |
| JS Investments Limited Partnership | 10%+ Owner | P.O. BOX 7113, BILLINGS, | James R & Christine M Scott Foundation, By: ++ | 17 Feb 2026 | 0001908658 |
| James R & Christine M Scott Foundation | 10%+ Owner | P.O. BOX 7113, BILLINGS, | Foundation for Community Vitality, By: ++ | 17 Feb 2026 | 0001909853 |
| Foundation for Community Vitality | 10%+ Owner | P.O. BOX 7113, BILLINGS, | James F Heyneman Conservatorship, James Scott, Conservator, By: ++ | 17 Feb 2026 | 0001908742 |
| James F Heyneman Conservatorship, James Scott, Conservator | 10%+ Owner | P.O. BOX 7113, BILLINGS, | James F Heyneman Trust, James Scott & First Interstate Wealth Management Co-Trustees, By: ++ | 17 Feb 2026 | 0001908854 |
| James F Heyneman Trust, James Scott & First Interstate Wealth Management Co-Trustees | 10%+ Owner | P.O. BOX 7113, BILLINGS, | ++ /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person | 17 Feb 2026 | 0001908844 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | FIBK | Common Stock | 2,531,970 | 31 Dec 2025 | See footnotes | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Composed of 1,989,882 shares held of record by James R Scott Trust, James R Scott & First Interstate Wealth Management Co-TTEEs, 14,534 shares held of record by James R Scott's 401(k) plan, 35,240 shares held of record by James R and Christine M Scott Foundation, 346,563 shares held of record by Foundation for Community Vitality, 73,002 shares held of record by James F Heyneman Conservatorship, James Scott, Conservator, 31,879 shares held of record by James F Heyneman Trust, James Scott & First Interstate Wealth Management Co-Trustees, and 40,870 shares held of record by James R. Scott's spouse. James R Scott ceased to have an indirect reportable beneficial ownership interest in the 1,901,036 shares held of record by JS Investments Limited Partnership upon his resignation in November 2025 as the Managing General Partner of such partnership. |
| F2 | As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, 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 therein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 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. |
| F3 | As a result of the resignation described in footnote 1 hereto, JS Investments Limited Partnership no longer intends to file future Forms 4 or 5 with the other reporting persons identified in the form. The nature of beneficial ownership is described in detail by footnote for all reporting persons. |
Form filed solely to reflect that JS Investments Limited Partnership is no longer filing Forms 4 and 5 together with the other reporting persons herein.