| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Scott Geoffrey D | 10%+ Owner | PO BOX 7113, BILLINGS, | /s/ Timothy Leuthold, Attorney-in-Fact for Reporting Person | 10 Dec 2025 | 0002022652 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIBK | Common stock | Gift | $0 | +550 | +0.49% | $0.000000 | 113,926 | 08 Dec 2025 | Direct | |
| transaction | FIBK | Common stock | Gift | $0 | +550 | +27% | $0.000000 | 2,615 | 08 Dec 2025 | By Spouse |