| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $21,190 | +292 | +0.63% | $72.57 | 46,439 | 15 Jul 2021 | Held In Directors Deferred Comp. Plan | |
| holding | MTRN | Common Stock | 3,244 | 15 Jul 2021 | Direct |