| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Michaelson Jennifer | Chief Scientific Officer | C/O CULLINAN THERAPEUTICS, INC., ONE MAIN STREET, SUITE 1350, CAMBRIDGE | /s/ Jacquelyn Sumer, Attorney-in-Fact | 19 Dec 2025 | 0001838061 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CGEM | Common Stock | Sale | $28,024 | -2,898 | -2.1% | $9.67 | 133,980 | 18 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Sale of shares to cover personal income tax obligations upon vesting of restricted stock units. |