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Prothena (PRTA)
NASDAQ:PRTA
US Market
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Prothena (PRTA) Ownership - Who Owns Prothena?

682 Followers

Prothena (PRTA) Ownership Overview

2.50%20.11%1.39%11.13%64.87%
1.39% Other Institutional Investors
11.13% ETFs
64.87% Public Companies and
Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 32.63% of the company’s stock is owned by Institutional Investors, 2.50% is owned by Insiders, and 64.87% is owned by Public Companies and Individual Investors.
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 21.50% of the company’s stock is owned by Institutional Investors, 2.50% is owned by Insiders, and 11.13% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Jun 18, 2026
xxxxxxxxxxxxx
$157800
Jun 12, 2026
xxxxxxxxxxxxx
$1020000
Jun 05, 2026
xxxxxxxxxxxxx
$465000
Jun 03, 2026
xxxxxxxxxxxxx
$471000

Recent Hedge Fund Trading Activity

Date
Firm
Activity
Value
Dec 31, 2023
xxxxxxxxxxxxx
$124610

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
3,482,656Institution6.65%28,279,167
2,145,212Institution4.10%17,419,121
1,647,400Institution3.15%13,376,888
913,254Institution1.74%7,415,622
888,000Insider1.70%7,210,560
887,535Institution1.70%7,206,784
643,917Institution1.23%5,228,606
617,222Institution1.18%5,011,843
551,089Institution1.05%4,474,843
492,669Institution0.94%4,000,472

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
3,482,656Institution6.65%28,279,167
887,535Institution1.70%7,206,784
643,917Institution1.23%5,228,606
617,222Institution1.18%5,011,843
551,089Institution1.05%4,474,843
492,669Institution0.94%4,000,472
483,658Institution0.92%3,927,303
469,864Institution0.90%3,815,296
436,076Institution0.83%3,540,937
333,148Institution0.64%2,705,162

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
1,441,208Institution2.75%12,235,856
1,145,044Institution2.19%9,824,478
479,945Institution0.92%4,698,662
338,542Institution0.65%2,904,690
255,810Institution0.49%2,504,380
246,541Institution0.47%2,115,322
200,537Institution0.38%1,702,559
174,964Institution0.33%1,781,134
168,503Institution0.32%1,445,756
154,420Institution0.29%1,324,924

FAQ

Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 1.39% of the company's stock is held by institutional investors, 2.50% is held by insiders, and 64.87% is held by retail investors.
    What percentage of Prothena (PRTA) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 1.39% of Prothena (PRTA) stock is held by institutional investors.
      What percentage of Prothena (PRTA) stock is held by retail investors?
      According to the latest TipRanks data, approximately 64.87% of Prothena (PRTA) stock is held by retail investors.
        Who owns the most shares of Prothena (PRTA)?
        Fidelity Mt. Vernon Street Trust owns the most shares of Prothena (PRTA).
          What is the significance of the ownership structure for a publicly traded company?
          The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.