| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Zeldin Robert K | CHIEF MEDICAL OFFICER | 450 EAST 29TH STREET, 14TH FLOOR, NEW YORK | /s/ Robert J. Wollin, Attorney-in-fact for Robert K. Zeldin | 08 Jan 2026 | 0001745347 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MGTX | Ordinary Shares | Options Exercise | +17,500 | +13% | 154,020 | 07 Jan 2026 | Direct | F1, F2 | ||
| transaction | MGTX | Ordinary Shares | Tax liability | $52,015 | -6,729 | -4.4% | $7.73 | 147,291 | 07 Jan 2026 | Direct | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MGTX | Restricted Share Units | Options Exercise | $0 | -17,500 | -100% | $0.000000 | 0 | 07 Jan 2026 | Ordinary Shares | 17,500 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents vesting of one-quarter of restricted share units granted on January 7, 2022. |
| F2 | Each restricted share unit converts into one ordinary share upon vesting. |
| F3 | Shares withheld for payment of taxes upon vesting of award. |