| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Award | $0 | +1,531 | +8.1% | $0.000000 | 20,518 | 17 Feb 2022 | Direct | |
| holding | MTRN | Common Stock | 5,233 | 17 Feb 2022 | Held in 401(k) Plan |