| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Ni Ping | Assistant Secretary/Treasurer | 8550 MOSLEY ROAD, HOUSTON | Michael W. Metcalf, Power of Attorney for Ping Ni | 21 Oct 2025 | 0002024984 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | POWL | Common Stock | Tax liability | -$127K | -380 | -15.37% | $335.11 | 2.09K | 16 Oct 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents the average of the high and low stock price on 10/16/2025. |
| F2 | Includes shares that have a time-based vesting provision. |