| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Read Simon | Director | C/O DIANTHUS THERAPEUTICS, INC., 7 TIMES SQUARE, 43RD FLOOR, NEW YORK | /s/ Adam Veness, as attorney-in-fact for Simon Read | 22 May 2025 | 0001688199 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DNTH | Stock Option (Right to Buy) | Award | $0 | +25,000 | $0.000000 | 25,000 | 22 May 2025 | Common Stock | 25,000 | $18.36 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The shares of common stock underlying this stock option award will vest as to one-third of the shares subject to the option on each of the first, second and third anniversaries of the date of grant, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |