| 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 Jan 2026 | 0001078942 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $24,254 | +187 | +0.36% | $129.70 | 52,574 | 06 Jan 2026 | Held In Directors Deferred Comp. Plan | |
| holding | MTRN | Common Stock | 5,909 | 06 Jan 2026 | Direct |