Tracey L. McCain - 01 Mar 2025 Form 4 Insider Report for Blueprint Medicines Corp (BPMC)

Role: EVP AND CHIEF LEGAL OFFICER
Signature: /s/ Melissa Masse, Attorney-in-Fact
Issuer symbol: BPMC
Transactions as of: 01 Mar 2025
Transactions value $: $0
Form type: 4
Filing time: 04 Mar 2025, 17:20:00 UTC
Previous filing: 07 Jun 2024
Next filing: 07 Mar 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BPMC	Common Stock	Award	$0	+11K	+18.08%	$0.00	71.8K	01 Mar 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	BPMC	Stock Option (Right to Buy)	Award	$0	+22K		$0.00	22K	01 Mar 2025	Common Stock	22K	$96.57	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reported transaction involved the Reporting Person's receipt of a grant of 11,000 restricted stock units under the Issuer's 2024 Stock Incentive Plan.
F2	This option vests with respect to 1/48th of the shares underlying the option on April 1, 2025 and as to an additional 1/48th of the shares underlying the option each month thereafter.