Prothena Ownership | Who Owns Prothena?


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Prothena Ownership Summary


Prothena is owned by 94.57% institutional investors, 12.42% insiders. Ecor1 capital is the largest institutional shareholder, holding 21.57% of PRTA shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 6.13% of its assets in Prothena shares.

PRTA Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockProthena94.57%12.42%-6.99%
SectorHealthcare Stocks 47.25%8.01%44.75%
IndustryBiotech Stocks 45.35%7.81%46.83%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Fidelity Growth Compy Commingled Pl S3.30M6.13%19.54K
Fidelity Growth Compy Commingled Pl O3.28M6.09%1.22K
Vanguard Health Care Inv3.25M6.03%851.12K
Fidelity Growth Company Fund2.35M4.38%-5.00K
US Small-Cap Growth II Equity Comp1.89M3.52%-6.73K
T. Rowe Price New Horizons1.89M3.52%-5.96K
iShares Russell 2000 ETF1.09M2.02%-2.44K
Fidelity Growth Company K6842.82K1.57%-14.54K
Fidelity Series Growth Company758.61K1.41%-
Fidelity Select Biotechnology738.12K1.37%-

Recent Insider Transactions


DateNameRoleActivityValue
Jan 24, 2024Walker Karin L Chief Accounting OfficerSell$170.00K
Dec 20, 2023Walker Karin L Chief Accounting OfficerSell$124.41K
Dec 20, 2023Walker Karin L Chief Accounting OfficerSell$61.54K
Nov 30, 2023Walker Karin L Chief Accounting OfficerSell$170.00K
Oct 25, 2023Walker Karin L Chief Accounting OfficerSell$72.04K

Insider Transactions Trends


DateBuySell
2024 Q4--
2024 Q3--
2024 Q2--
2024 Q1-1
2023 Q4-10

PRTA Ownership FAQ


Who Owns Prothena?

Prothena shareholders are primarily institutional investors at 94.57%, followed by 12.42% insiders and -6.99% retail investors. The average institutional ownership in Prothena's industry, Biotech Stocks , is 45.35%, which Prothena exceeds.

Who owns the most shares of Prothena?

Prothena’s largest shareholders are Ecor1 capital (11.58M shares, 21.57%), Fmr (8.07M shares, 15.02%), and Price t rowe associates inc /md/ (4.24M shares, 7.89%). Together, they hold 44.47% of Prothena’s total shares outstanding.

Does Blackrock own Prothena?

Yes, BlackRock owns 7.18% of Prothena, totaling 3.86M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 79.61M$. In the last quarter, BlackRock increased its holdings by 138.27K shares, a 3.72% change.

Who is Prothena’s biggest shareholder by percentage of total assets invested?

Ecor1 capital is Prothena’s biggest shareholder by percentage of total assets invested, with 7.31% of its assets in 11.58M Prothena shares, valued at 239.1M$.

Who is the top mutual fund holder of Prothena shares?

Fidelity Growth Compy Commingled Pl S is the top mutual fund holder of Prothena shares, with 6.13% of its total shares outstanding invested in 3.3M Prothena shares.

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