| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Frank Sharon R | VP Environ Health & Safety | 5313 CAMPBELLS RUN ROAD, SUITE 200, PITTSBURGH | /s/ John Ciroli, by Power of Attorney | 26 Nov 2025 | 0001889594 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MNTK | Common Stock | Tax liability | $4,589 | -2,748 | -6.5% | $1.67 | 39,275 | 24 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld by the issuer to satisfy tax withhholding obligations in connection with the vesting of restricted stock units. |