Schedule 13G ownership disclosure

BLUEBIRD BIO INC

Security class unavailable · CUSIP: 09609G100

Event date: 2017-12-29

Legacy cover-page extraction is best effort and may not include every reporting person.

Filing-level shares
2,661,153
Percent of class
5.4000%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.

Source: SEC EDGAR filing

Filing metadata

Accession number
0000044201-18-000013
Form type
SC 13G
Filer
GROWTH FUND OF AMERICA
CIK
CIK 44201
Filed
Feb 14, 2018
Reporting period
Dec 29, 2017
Description
Schedule 13G beneficial ownership

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