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Prothena shares owned by Armistice Capital

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

Historical chart of Armistice Capital investment in Prothena

Tip: Access up to 7 years of quarterly data

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

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Quarterly reported holdings in Prothena by Armistice Capital

Quarter filed Position value Share count Share price at filing
2025-09-30 $18M 1.8M 9.76
2024-12-31 $31M 2.2M 13.85
2024-09-30 $28M 1.7M 16.73
2024-06-30 $32M 1.6M 20.64
2024-03-31 $27M 1.1M 24.77

More positions owned by Armistice Capital

Iwm Nov5 230.0 P Listed Option Put Option (IWM)
Spy Nov5 634.0 P Listed Option Put Option (SPY)
Ptc Therapeutics Ord Equity (PTCT)
Travere Therapeutics Ord Equity (TVTX)
Supernus Pharmaceuticals Ord Equity (SUPN)
Cytk Jan7 40.0 C Listed Option Call Option (CYTK)
Madrigal Pharmaceuticals Ord Equity (MDGL)
Incyte Ord Equity (INCY)
Neurocrine Biosciences Ord Equity (NBIX)
Immunovant Ord Equity (IMVT)
Dentsply Sirona Ord Equity (XRAY)
Regeneron Pharmaceuticals Ord Equity (REGN)
Freshpet Ord Equity (FRPT)
Amazon Com Ord Equity (AMZN)
Agio Dec5 40.0 C Listed Option Call Option (AGIO)

View all positions for Armistice Capital

Top funds holding Prothena

FMR
BlackRock
Vanguard Group
Armistice Capital
Rubric Capital Management
ADAR1 Capital Management
Palo Alto Investors
D. E. Shaw & Co
Susquehanna International
Acadian Asset Management
Geode Capital Management
Citadel Advisors
Morgan Stanley
State Street Corporation
Jane Street

View all funds holding Prothena