| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| FIBK | Director | Jun 01, 2022 | Option Exercise | $38.07 | 1,576 | 59,998 | 13,473 | Jun 02, 2022, 04:40 PM |
| FIBK | Director | Feb 01, 2022 | Option Exercise | $38.41 | 477 | 18,322 | 11,897 | Feb 03, 2022, 04:41 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| FIBK | Director | Jun 01, 2022 | Option Exercise | 59,998 |
| FIBK | Director | Feb 01, 2022 | Option Exercise | 18,322 |