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Generation Bio shares owned by CSS

Quarter-by-quarter ownership of Generation Bio (GBIO) shares owned by CSS from 13F filings

Historical chart of CSS investment in Generation Bio

Tip: Access up to 7 years of quarterly data

All positions including Generation Bio held by CSS consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Generation Bio by CSS

Quarter filed Position value Share count Share price at filing
2025-12-31 $99k 18k 5.68

More positions owned by CSS

Echostar Corp Note 3.875%11/3 (Principal)
Lumentum Hldgs Note 0.500% 6/1 (Principal)
Spdr S&p 500 Etf Tr Tr Unit (SPY)
Jazz Investments I Note 2.000% 6/1 (Principal)
Ionis Pharmaceuticals Note 4/0 (Principal)
Western Digital Corp Put Put Option
Peabody Engr Corp Note 3.250% 3/0 (Principal)
Live Nation Entertainment In Note 3.125% 1/1 (Principal)
Equinox Gold Corp Note 4.750%10/1 (Principal)
Strategy Cl A New Call Option (MSTR)
Lumentum Hldgs Note 1.500%12/1 (Principal)
Transocean Deb 4.625% 9/3 (Principal)
Bridgebio Pharma Note 2.250% 2/0 (Principal)
Bank America Corp 7.25%CNV PFD L (BAC.PL)
Gamestop Corp Cl A (GME)

View all positions for CSS

Top funds holding Generation Bio

Atlas Venture Life Science Advisors
Opaleye Management
Renaissance Technologies
Vanguard Group
Siren
Baker Bros. Advisors
UBS Group
Marshall Wace
Acadian Asset Management
Yiheng Capital
Rangeley Capital
Millennium Management
Goldman Sachs Group
BlackRock
Geode Capital Management

View all funds holding Generation Bio