| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Eckenrode David L | Assistant Secretary/Treasurer | 8550 MOSLEY ROAD, HOUSTON | Michael W. Metcalf, Power of Attorney for David L. Eckenrode | 12 Feb 2026 | 0002025273 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | POWL | Common Stock | Sale | $168,150 | -295 | -40% | $570.00 | 443 | 10 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes shares that have a time-based vesting provision. |