| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SHULAR CRAIG S | Director | 6070 PARKLAND BLVD., MAYFIELD HTS., | /s/Michelle R. Mekinda, as Attorney-In-Fact | 2025-07-07 | 0001078942 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $24.3K | +297 | +0.57% | $81.87 | 52.1K | Jul 2, 2025 | Held In Directors Deferred Comp. Plan | |
| holding | MTRN | Common Stock | 5.91K | Jul 2, 2025 | Direct |