Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000950170-25-081108
Filing Date
2025-06-03
Accepted
2025-06-03 17:14:16
Documents
1
Period of Report
2025-05-30

Document Format Files

Seq Description Document Type Size
1 4 ownership.html 4  
1 4 ownership.xml 4 6981
  Complete submission text file 0000950170-25-081108.txt   8477
Mailing Address 455 GRAND UNION BOULEVARD SOMERVILLE MA 02145
Business Address 455 GRAND UNION BOULEVARD SOMERVILLE MA 02145 339-499-9300
bluebird bio, Inc. (Issuer) CIK: 0001293971 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)

Mailing Address 85 WELLS AVENUE NEWTON MA 02459
Business Address
Paulson Richard A. (Reporting) CIK: 0001804460 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-35966 | Film No.: 251020787