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Prothena shares owned by Quadrature Capital

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

Historical chart of Quadrature Capital investment in Prothena

Tip: Access up to 7 years of quarterly data

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

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Quarterly reported holdings in Prothena by Quadrature Capital

Quarter filed Position value Share count Share price at filing
2026-06-30 $98k 10k 9.79
2025-12-31 $297k 31k 9.55

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View all positions for Quadrature Capital

Top funds holding Prothena

FMR
Rubric Capital Management
BlackRock
Acadian Asset Management
State Street Corporation
Vanguard Portfolio Management
D. E. Shaw & Co
ADAR1 Capital Management
Two Sigma Investments
Morgan Stanley
Palo Alto Investors
Geode Capital Management
Federated Investors
Goldman Sachs Group
Jacobs Levy Equity Management

View all funds holding Prothena