| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Bauer Christopher R. | VP and Treasurer | 400 NORTH 5TH STREET, PHOENIX | /s/ Melissa Sallee, Attorney-in-Fact | 19 Feb 2026 | 0002069494 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PNW | Restricted Stock Unit | Award | +1,140 | 1,140 | 17 Feb 2026 | Common Stock | 1,140 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | On February 17, 2026, the recipient received the number specified above of Restricted Stock Units and related Dividend Equivalents. Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in common stock. When the Company declares a cash dividend on its stock from the date of grant until the applicable vesting date, the recipient will be credited with additional Restricted Stock Units in satisfaction of the Dividend Equivalents Award. Vested Restricted Stock Units in satisfaction of the Dividend Equivalents Award will be made in cash. |
| F2 | The Restricted Stock Units award was granted and was effective in February 2026, and vests in four equal, annual installments beginning on February 20, 2027. |