| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MACRICOSTAS CONSTANTINE S | Director | 15 SECOR ROAD, BROOKFIELD | /s/Brandon DeSocio, attorney-in-fact for Constantine S. Macricostas | 03 Jul 2025 | 0000900574 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PLAB | COMMON STOCK | Sale | $595,900 | -29,500 | -100% | $20.20 | 0 | 02 Jul 2025 | By Macricostas Family Foundation Inc. | |
| holding | PLAB | COMMON STOCK | 459,623 | 02 Jul 2025 | Direct |