John Tsai - Jan 6, 2023 Form 4 Insider Report for Blueprint Medicines Corp (BPMC)

Role: Director
Signature: /s/ Ariel Hurley
Stock symbol: BPMC
Transactions as of: Jan 6, 2023
Transactions value $: $0
Form type: 4
Date filed: 1/9/2023, 04:16 PM
Next filing: Jun 23, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BPMC	Common Stock	Award	$0	+3.9K		$0.00	3.9K	Jan 6, 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 Option (Right to Buy)	Award	$0	+7.95K		$0.00	7.95K	Jan 6, 2023	Common Stock	7.95K	$46.87	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 3,900 restricted stock units in accordance with the Issuer's non-employee director compensation policy.
F2	This option vests with respect to 1/36th of the shares underlying the option on February 6, 2023 and as to an additional 1/36th of the shares underlying the option each month thereafter.