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Prothena shares owned by Mackenzie Financial

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

Historical chart of Mackenzie Financial investment in Prothena

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

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Quarterly reported holdings in Prothena by Mackenzie Financial

Quarter filed Position value Share count Share price at filing
2026-06-30 $2.3M 240k 9.79

More positions owned by Mackenzie Financial

Royal Bank of Canada Common Stock (RY)
Toronto-Dominion Bank/The Common Stock (TD)
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NVIDIA Corp Common Stock (NVDA)
Apple Common Stock (AAPL)
Bank of Montreal Common Stock (BMO)
Alphabet Common Stock (GOOGL)
Canadian Pacific Kansas City L Common Stock (CP)
Microsoft Corp Common Stock (MSFT)
Agnico Eagle Mines Common Stock (AEM)
Canadian Imperial Bank of Comm Common Stock (CM)
Manulife Financial Corp Common Stock (MFC)
Enbridge Common Stock (ENB)
Canadian Natural Resources Common Stock (CNQ)
Amazon.com Common Stock (AMZN)

View all positions for Mackenzie Financial

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