Philip D. Gregory - Aug 2, 2021 Form 4 Insider Report for bluebird bio, Inc. (BLUE)

Role
Chief Scientific Officer
Signature
/s/ Helen C. Fu, Attorney-in-Fact
Stock symbol
BLUE
Transactions as of
Aug 2, 2021
Transactions value $
$0
Form type
4
Date filed
8/4/2021, 04:53 PM
Next filing
Nov 8, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BLUE Common Stock Award $0 +33.9K +72.45% $0.00 80.8K Aug 2, 2021 Direct F1
transaction BLUE Common Stock Award $0 +33.9K +42.01% $0.00 115K Aug 2, 2021 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock unit awards vest over a two-year period at the rate of 40% on August 2, 2022 and 60% on August 2, 2023.
F2 Restricted stock unit awards shall vest upon the satisfaction of certain performance criteria.