bluebird bio, Inc.

Insider Reports History

Entity: Company
Location: 455 Grand Union Boulevard, Somerville, MA
Signature: By: /s/ Helen Fu, SVP, General Counsel of bluebird bio, Inc.
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by bluebird bio, Inc.:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
2seventy bio, Inc.	10%+ Owner	Common Stock	0		$3.75	Nov 4, 2021	Direct

Showing 1 to 1 of 1 entries

Insider Reports Filed by bluebird bio, Inc.

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
TSVT	2seventy bio, Inc.	Nov 3, 2021	2	$0	4	Nov 8, 2021	10%+ Owner
TSVT	2seventy bio, Inc.	Oct 18, 2021	0	$0	3	Oct 18, 2021	10%+ Owner