GENERATION BIO CO

CUSIP: 37148K209 Class: COM NEW

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2025
Shares 209,641 Value ($000) $1 Avg Close — Range —
Q3 2025
Shares 576,789 Value ($000) $4 Avg Close — Range —