| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shegog Todd | Director | C/O COGENT BIOSCIENCES, INC., 275 WYMAN STREET, 3RD FLOOR, WALTHAM | /s/ Evan D. Kearns, Attorney-in-Fact | 05 Jun 2025 | 0001714564 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | COGT | Stock Option (Right to Buy) | Award | $0 | +44,700 | $0.000000 | 44,700 | 04 Jun 2025 | Common Stock | 44,700 | $5.64 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This stock option shall vest in full upon the earlier of the first anniversary of the date of grant or the date of the 2026 Annual Meeting of Stockholders. |