Insiders / bluebird bio, Inc.

bluebird bio, Inc.

CIK 1293971companyissuerbeneficial ownerinsider

Companies

First seen

Feb 3, 2015

Last activity

Jun 3, 2025

Companies

Company	Role	Shares held	Peak held	Trades	Latest
2seventy bio, Inc. · TSVT	10% owner	0	23,369,088	2	—

InsidersInstitutions

This person's trades in company stock, across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Nov 4, 2021	Other Other (per filing)	TSVT 2seventy bio, Inc. Common Stock	$0	-23.4M -100.00%	0	low
Nov 3, 2021	Grant Grant or award	TSVT 2seventy bio, Inc. Common Stock	$0	+23.4M +23368988.00%	23,369,088	low