PRICE T ROWE ASSOCIATES INC /MD/ - 31 Dec 2025 SCHEDULE 13G/A Report for GENERATION BIO CO COMMON STOCK (GBIO)

Filing Manager: PRICE T ROWE ASSOCIATES INC /MD/
Reporting Manager: T. Rowe Price Associates, Inc.
Security: GENERATION BIO CO COMMON STOCK
Symbol: GBIO
Shares outstanding: 6,762,613 shares
Disclosed Ownership: 209,641 shares
Ownership: 3.1%
Form type: SCHEDULE 13G/A
Filing time: 17 Feb 2026, 10:26:21 UTC
Date of event: 31 Dec 2025
Previous filing: 14 Nov 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
T. Rowe Price Associates, Inc.	3.1%	209,641	209,641	0	Ellen York	Vice President