Richard A. Colvin - Dec 10, 2024 Form 4 Insider Report for bluebird bio, Inc. (BLUE)

Role
Chief Medical Officer
Signature
/s/ Sydney Gaylin, Attorney-in-Fact
Stock symbol
BLUE
Transactions as of
Dec 10, 2024
Transactions value $
-$1,178
Form type
4
Date filed
12/12/2024, 04:01 PM
Previous filing
Oct 2, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BLUE Common Stock Sale -$1.18K -2.82K -1.68% $0.42 166K Dec 10, 2024 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Shares were sold to cover tax withholding obligations incurred in connection with the vesting of Restricted Stock Units.