| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Fashinpaur Melissa A | Chief Accounting Officer | 6070 PARKLAND BOULEVARD, MAYFIELD HEIGHTS | /s/Michelle R. Mekinda, as Attorney-In-Fact | 05 Aug 2025 | 0002072270 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Common Stock | Options Exercise | $0 | +1,214 | +440% | $0.000000 | 1,490 | 01 Aug 2025 | Direct | |
| transaction | MTRN | Common Stock | Tax liability | $36,774 | -350 | -23% | $105.07 | 1,140 | 01 Aug 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTRN | Restricted Stock Units | Options Exercise | $0 | -1,214 | -35% | $0.000000 | 2,209 | 01 Aug 2025 | Common Stock | 1,214 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Each restricted stock unit represents a right to receive one share of MTRN common stock. |
| F2 | Consists of restricted stock units granted on 03/01/2023, 03/01/2024, and 03/01/2025 that will vest in three substantially equal annual installments on the first three anniversaries of the grant date, and restricted stock units granted on 03/01/2025 that will vest in a single installment on 03/01/2028. |
| F3 | Expiration Date is the same as the Date Exercisable. |