| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Qatanani Mo | CHIEF SCIENTIFIC OFFICER | 301 BINNEY STREET, CAMBRIDGE | /s/ Junlin Ho, Attorney-in-Fact for Mo Qatanani | 24 Sep 2025 | 0001980298 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SRRK | Common Stock | Sale | $102,846 | -3,353 | -3% | $30.67 | 108,964 | 22 Sep 2025 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | This transaction was effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025. |
| F2 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.33 to $30.85, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. |
| F3 | Consists of 108,964 RSUs. |