| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Gover Justin D. | Director | C/O DESIGN THERAPEUTICS, INC., 6005 HIDDEN VALLEY ROAD, SUITE 110, CARLSBAD | /s/ Mustapha Parekh, Attorney-in-Fact | 05 Jan 2026 | 0001754129 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DSGN | Stock option (right to buy) | Award | $0 | +45,000 | $0.000000 | 45,000 | 02 Jan 2026 | Common Stock | 45,000 | $9.10 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The shares subject to the option will vest in equal monthly installments over 36 months following September 9, 2025. |