| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Griffin Sarah E | VP of Human Resources (IPC) | 1221 W IDAHO STREET, BOISE | /s/ Cheryl W. Thompson, Attorney-in-Fact | 24 Feb 2026 | 0001789338 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IDA | Common Stock | Award | +1,850 | +41% | 6,408 | 20 Feb 2026 | Direct | F1 | ||
| transaction | IDA | Common Stock | Tax liability | $104,778 | -749 | -12% | $139.89 | 5,659 | 20 Feb 2026 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IDA | Restricted Stock Units | Award | $0 | +553 | $0.000000 | 553 | 20 Feb 2026 | Common Stock | 553 | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | These shares were received for no consideration upon the satisfaction of performance criteria underlying an award of performance-based units for the 2023-2025 performance period. |
| F2 | Each restricted stock unit represents a contingent right to receive one share of IDA common stock. |
| F3 | The restricted stock units vest on January 1, 2029. |