| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MUDGE FREDERICK N | Vice President, Operations | 8550 MOSLEY ROAD, HOUSTON | Michael W. Metcalf, Power of Attorney for Frederick N Mudge | 06 Jan 2026 | 0002025646 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | POWL | Common Stock | Award | $642,618 | +1,900 | +6.5% | $338.22 | 31,088 | 02 Jan 2026 | Direct | F1, F2 |
| transaction | POWL | Common Stock | Tax liability | $394,703 | -1,167 | -3.8% | $338.22 | 29,921 | 02 Jan 2026 | Direct | F2 |
Frederick N. Mudge is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
| Id | Content |
|---|---|
| F1 | Final distribution of vested shares granted under the Company's long-term Equity Compensation Plan. |
| F2 | Represents the average of the high and low stock price on 01/02/2026. |