| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Forbes Alexandria | PRESIDENT & CEO, Director | 655 THIRD AVENUE, SUITE 1115, NEW YORK | /s/ Richard Giroux, Attorney-in-fact Alexandria Forbes | 23 Feb 2026 | 0001678604 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MGTX | Ordinary Shares | Options Exercise | +62,500 | +4.2% | 1,544,743 | 21 Feb 2026 | Direct | F1, F2 | ||
| transaction | MGTX | Ordinary Shares | Tax liability | $246,208 | -33,048 | -2.1% | $7.45 | 1,511,695 | 21 Feb 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 | -62,500 | -50% | $0.000000 | 62,500 | 21 Feb 2026 | Ordinary Shares | 62,500 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents vesting of one-quarter of restricted share units granted on February 21, 2023. |
| F2 | Each restricted share unit converts into one ordinary share upon vesting. |
| F3 | Shares withheld for payment of taxes upon vesting of award. |