Richard A. Colvin - Mar 1, 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
Mar 1, 2024
Transactions value $
-$10,342
Form type
4
Date filed
3/5/2024, 05:40 PM
Previous filing
Jan 9, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BLUE Common Stock Sale -$10.3K -6.77K -5.41% $1.53 118K Mar 1, 2024 Direct F1, F2

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 Option (right to buy) Award $0 +199K $0.00 199K Mar 1, 2024 Common Stock 199K $1.56 Direct F3
* 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.
F2 The range in prices for the transaction reported on this line was $1.52 to $1.55. The average weighted price was $1.5276. The reporting person will provide, upon request by the SEC, the issuer or security holder of the issuer, full information regarding the number of shares sold at each separate price.
F3 This stock option will vest over a four-year period at the rate of 25% on the first anniversary of March 1, 2024, and then in equal monthly installments for the remaining 36 months.