| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $34,979 | +482 | +2.8% | $72.57 | 17,880 | 15 Jul 2021 | Held in Directors Deferred Compensation Plan. | |
| holding | MTRN | Common Stock | 13,869 | 15 Jul 2021 | Direct |