| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For FIBK | |||||
| 2026-01-06 | Scott, Jonathan R | 10% Owner | Sold | 1827 | $36.92 |
| 2026-01-05 | Scott, Jonathan R | 10% Owner | Sold | 3173 | $36.20 |
| 2025-12-12 | Scott, James R | 10% Owner | Purchased | 755 | $0.00 |
| 2025-12-12 | Scott, James R | 10% Owner | Sold | 755 | $0.00 |
| 2025-12-08 | Scott, James R | 10% Owner | Purchased | 755 | $0.00 |
| 2025-12-08 | Scott, Jeremy | Director, 10% Owner | Purchased | 550 | $0.00 |
| 2025-12-08 | Scott, Geoffrey D | 10% Owner | Purchased | 550 | $0.00 |
| 2025-12-08 | Scott, James R | 10% Owner | Sold | 755 | $0.00 |
| 2025-12-03 | Scott, Risa Kae | 10% Owner | Sold | 3000 | $0.00 |
| 2025-12-01 | Susan, Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees | 10% Owner | Sold | 10000 | $32.75 |
| 2025-11-24 | Shepler, Christopher L. | Chief Banking Officer | Purchased | 1591 | $31.42 |
| 2025-11-21 | Heyneman, John M Jr | Director, 10% Owner | Sold | 30432 | $31.03 |
| 2025-11-11 | Heyneman, John M Jr | Director, 10% Owner | Sold | 15000 | $32.14 |
| 2025-11-10 | Heyneman, John M Jr | Director, 10% Owner | Sold | 20000 | $32.06 |
| 2025-11-03 | Scott, Jonathan R | 10% Owner | Sold | 4800 | $31.27 |
| 2025-11-03 | Susan, Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees | 10% Owner | Sold | 10000 | $30.99 |
| 2025-10-29 | Scott, Jonathan R | 10% Owner | Sold | 7000 | $32.09 |
| 2025-10-09 | Scott, Jonathan R | 10% Owner | Sold | 685 | $31.66 |
| 2025-10-08 | Scott, Jonathan R | 10% Owner | Sold | 5600 | $32.01 |
| 2025-10-07 | Scott, Jonathan R | 10% Owner | Sold | 13715 | $32.09 |