| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Carter Percy H. | CHIEF SCIENTIFIC OFFICER | C/O BLUEPRINT MEDICINES CORPORATION, 45 SIDNEY STREET, CAMBRIDGE | /s/ Melissa Masse, Attorney-in-Fact | 08 Jul 2025 | 0001863024 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BPMC | Common Stock | Sale | $134,791 | -1,051 | -1.9% | $128.25 | 53,155 | 03 Jul 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale occurred automatically to satisfy the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. |