Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000315066-25-002036
Filing Date
2025-08-06
Accepted
2025-08-06 12:01:29
Documents
2

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 6544
2 exhibit99.txt EX-99 2557
  Complete submission text file 0000315066-25-002036.txt   10840
Mailing Address 245 SUMMER STREET BOSTON MA 02210
Business Address 245 SUMMER STREET BOSTON MA 02210 6175706339
FMR LLC (Filed by) CIK: 0000315066 (see all company filings)

EIN.: 043532603 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 0000

Mailing Address 301 BINNEY STREET CAMBRIDGE MA 02142
Business Address 301 BINNEY STREET CAMBRIDGE MA 02142 857-529-5908
Generation Bio Co. (Subject) CIK: 0001733294 (see all company filings)

EIN.: 814301281 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A | Act: 34 | File No.: 005-91530 | Film No.: 251188355
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)