| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $21,238 | +307 | +0.66% | $69.18 | 46,822 | 04 Oct 2021 | Held In Directors Deferred Comp. Plan | |
| holding | MTRN | Common Stock | 3,244 | 04 Oct 2021 | Direct |