GENERATION BIO CO

CUSIP: 37148K100 Class: Common Stock

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

Decreased Positions (1)

Accent Capital Management, LLC
Value ($000) $17 (-27.3%) Shares 26 (-31.6%)

Exited Positions (5)

Atlas Venture Life Science Advisors, LLC
Value ($000) $5,067 Shares 827,946
Palo Alto Investors LP
Value ($000) $92 Shares 15,047
BARCLAYS PLC
Value ($000) $189 Shares 76,430
OSAIC HOLDINGS, INC.
Value ($000) $5 Shares 15,459
CWM, LLC
Value ($000) $0 Shares 4