| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Birchall John | Managing Director | 8550 MOSLEY ROAD, HOUSTON | Michael W. Metcalf, Power of Attorney for John Birchall | 27 Aug 2025 | 0002025235 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | POWL | Common Stock | Sale | $780,090 | -3,000 | -31% | $260.03 | 6,700 | 26 Aug 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes shares that have a time-based vesting provision. |