DOSSIER · 13F Holders · Q4 2025
GBIO
GENERATION BIO C
4 institutions still hold GENERATION BIO C as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 37148K209·4 13F holders·last filed Dec 31, 2025
AI Holders Summary · Q4 2025
4 institutions reported GBIO in Q4 2025. Opaleye Management Inc. leads at 60.8% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.