| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Tatum Timothy E | VP Regulatory Affairs | 1221 W IDAHO ST, BOISE | /s/Cheryl W. Thompson, Attorney-in-Fact | 12 Aug 2025 | 0002078099 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | IDAHOPWR | Preferred Stock | 0 | 31 Dec 2024 | Direct |