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Prothena shares owned by Diadema Partners

Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Diadema Partners from 13F filings

Historical chart of Diadema Partners investment in Prothena

Tip: Access up to 7 years of quarterly data

All positions including Prothena held by Diadema Partners consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Prothena by Diadema Partners

Quarter filed Position value Share count Share price at filing
2025-12-31 $1.0M 107k 9.55

More positions owned by Diadema Partners

Viking Therapeutics (VKTX)
Vertex Pharmaceuticals Incorporated (VRTX)
Bridgebio Pharma (BBIO)
Spdr Series Trust State Street Spd Put Option (XBI)
Praxis Precision Medicines I Com New Put Option (PRAX)
Johnson & Johnson (JNJ)
Avidity Biosciences Ord Call Option (RNA)
Capricor Therapeutics Com New (CAPR)
Invesco Qqq Tr Unit Ser 1 Put Option (QQQ)
Jazz Pharmaceuticals Shs Usd Call Option (JAZZ)
Terns Pharmaceuticals (TERN)
Apogee Therapeutics Call Option (APGE)
Structure Therapeutics Sponsored Ads Call Option (GPCR)
Regeneron Pharmaceuticals (REGN)
Abivax Sa Sponsored Ads (ABVX)

View all positions for Diadema Partners

Top funds holding Prothena

FMR
BlackRock
Rubric Capital Management
State Street Corporation
Vanguard Group
Armistice Capital
ADAR1 Capital Management
Acadian Asset Management
Palo Alto Investors
D. E. Shaw & Co
Geode Capital Management
Jacobs Levy Equity Management
Federated Investors
Citadel Advisors
Goldman Sachs Group

View all funds holding Prothena