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Prothena shares owned by Commonwealth Equity Services

Quarter-by-quarter ownership of Prothena (PRTA) shares owned by Commonwealth Equity Services from 13F filings

Historical chart of Commonwealth Equity Services investment in Prothena

Tip: Access up to 7 years of quarterly data

All positions including Prothena held by Commonwealth Equity Services consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Prothena by Commonwealth Equity Services

Quarter filed Position value Share count Share price at filing
2026-03-31 $116k 12k 9.72
2025-06-30 $72k 12k 6.09
2025-03-31 $165k 13k 12.39

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View all positions for Commonwealth Equity Services

Top funds holding Prothena

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

View all funds holding Prothena