Schedule 13G ownership disclosure

GENERATION BIO CO

COMMON STOCK · CUSIP: 37148K209

Event date: 2025-06-30

Filing-level shares
8,462,611
Percent of class
12.6%
  • T. Rowe Price Associates, Inc.

    Shares: 8,462,611 · Class: 12.6%

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

Source: SEC EDGAR filing

Filing metadata

Accession number
0000080255-25-000602
Form type
SCHEDULE 13G/A
Filer
Generation Bio Co.
CIK
CIK 1733294
Filed
Aug 14, 2025
Reporting period
Jun 30, 2025
Description
Schedule 13G beneficial ownership

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