| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SHULAR CRAIG S | Director | 6070 PARKLAND BLVD., MAYFIELD HTS., | /s/Michelle R. Mekinda, as Attorney-In-Fact | 07 Jul 2025 | 0001078942 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $24,315 | +297 | +0.57% | $81.87 | 52,068 | 02 Jul 2025 | Held In Directors Deferred Comp. Plan | |
| holding | MTRN | Common Stock | 5,909 | 02 Jul 2025 | Direct |