Christina Rossi - Mar 1, 2022 Form 4 Insider Report for Blueprint Medicines Corp (BPMC)

Role: CHIEF COMMERCIAL OFFICER
Signature: /s/ Ariel Hurley, Attorney-in-Fact
Stock symbol: BPMC
Transactions as of: Mar 1, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/3/2022, 07:08 PM
Previous filing: Mar 23, 2022
Next filing: Mar 8, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BPMC	Common Stock	Award	$0	+15K	+47.28%	$0.00	46.7K	Mar 1, 2022	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	+30K		$0.00	30K	Mar 1, 2022	Common Stock	30K	$61.31	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 15,000 restricted stock units under 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, 2022 and as to an additional 1/48th of the shares underlying the option each month thereafter.