L. Becker Hewes - 01 Mar 2023 Form 4 Insider Report for Blueprint Medicines Corp (BPMC)

Role: CHIEF MEDICAL OFFICER
Signature: /s/ Melissa Masse, Attorney-in-Fact
Issuer symbol: BPMC
Transactions as of: 01 Mar 2023
Net transactions value: $0
Form type: 4
Filing time: 03 Mar 2023, 19:14:11 UTC
Previous filing: 08 Jun 2022
Next filing: 08 Mar 2023
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	+12,500	+46%	$0.000000	39,796	01 Mar 2023	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 Options (Right to Buy)	Award	$0	+25,000		$0.000000	25,000	01 Mar 2023	Common Stock	25,000	$43.15	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 12,500 restricted stock units under the Issuer's 2015 Stock Option and Incentive Plan.
F2	This option vests with respect to 1/48th of the shares underlying the option on April 1, 2023 and as to an additional 1/48th of the shares underlying the option each month thereafter.