<SEC-DOCUMENT>0000902219-21-000344-index.html : 20210310 <SEC-HEADER>0000902219-21-000344.hdr.sgml : 20210310 <ACCEPTANCE-DATETIME>20210310071741 ACCESSION NUMBER: 0000902219-21-000344 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210310 DATE AS OF CHANGE: 20210310 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: bluebird bio, Inc. CENTRAL INDEX KEY: 0001293971 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-87526 FILM NUMBER: 21728240 BUSINESS ADDRESS: STREET 1: 60 BINNEY STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 339-499-9300 MAIL ADDRESS: STREET 1: 60 BINNEY STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 FORMER COMPANY: FORMER CONFORMED NAME: Genetix Pharmaceuticals Inc DATE OF NAME CHANGE: 20040616 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: WELLINGTON MANAGEMENT GROUP LLP CENTRAL INDEX KEY: 0000902219 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 042683227 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: C/O WELLINGTON MANAGEMENT COMPANY LLP STREET 2: 280 CONGRESS STREET CITY: BOSTON STATE: MA ZIP: 02210 BUSINESS PHONE: 6179515000 MAIL ADDRESS: STREET 1: C/O WELLINGTON MANAGEMENT COMPANY LLP STREET 2: 280 CONGRESS STREET CITY: BOSTON STATE: MA ZIP: 02210 FORMER COMPANY: FORMER CONFORMED NAME: WELLINGTON MANAGEMENT CO LLP DATE OF NAME CHANGE: 19960930 FORMER COMPANY: FORMER CONFORMED NAME: WELLINGTON MANAGEMENT CO DATE OF NAME CHANGE: 19930426 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>SEC13G_Filing.htm <DESCRIPTION>SEC SCHEDULE 13G <TEXT> Document 1 - file: SEC13G_Filing.htm
</DOCUMENT> </SEC-DOCUMENT>