| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Sale | $376,000 | -4,700 | -21% | $80.00 | 17,195 | 13 May 2022 | Direct | |
| holding | MTRN | Common Stock | 5,240 | 13 May 2022 | Held in 401(k) Plan |