Richard A. Paulson - 03 Apr 2023 Form 4 Insider Report for bluebird bio, Inc. (BLUE)

Role: Director
Signature: Joseph Vittiglio, as attorney in fact for Richard Paulson
Issuer symbol: BLUE
Transactions as of: 03 Apr 2023
Net transactions value: $0
Form type: 4
Filing time: 05 Apr 2023, 16:07:56 UTC
Previous filing: 07 Mar 2023
Next filing: 05 Apr 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BLUE	Common Stock	Award	$0	+4,663		$0.000000	4,663	03 Apr 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	BLUE	Stock Options (Right to buy)	Award	$0	+7,500		$0.000000	7,500	03 Apr 2023	Common Stock	7,500	$3.30	Direct	F2

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

Explanation of Responses:

Id	Content
F1	These restricted stock units for common stock vest ratably over three years in annual installments commencing on April 3, 2023.
F2	This option vests ratably over three years in annual installments commencing on April 3, 2023.