| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Vahaviolos Aspasia Felice | 10%+ Owner | C/O MISTRAS GROUP, 195 CLARKSVILLE ROAD, PRINCETON JUNCTION | /s/ Michael C. Keefe, attorney-in-fact for Aspasia Vahaviolos | 10 Sep 2025 | 0002082296 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | MG | Common Stock | 3.89M | 23 May 2025 | Direct |