| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $17,433 | +252 | +2.7% | $69.18 | 9,581 | 04 Oct 2021 | Held in Directors Deferred Compensation Plan | |
| holding | MTRN | Common Stock | 1,453 | 04 Oct 2021 | Direct |