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

680 Followers

Prothena (PRTA) Ownership Overview

3.54%20.06%23.70%9.58%43.12%
23.70% Other Institutional Investors
9.58% ETFs
43.12% Public Companies and
Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 53.34% of the company’s stock is owned by Institutional Investors, 3.54% is owned by Insiders, and 43.12% 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 43.76% of the company’s stock is owned by Institutional Investors, 3.54% is owned by Insiders, and 9.58% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Jun 12, 2026
xxxxxxxxxxxxx
$1020000
Jun 05, 2026
xxxxxxxxxxxxx
$465000
Jun 03, 2026
xxxxxxxxxxxxx
$471000
May 26, 2026
xxxxxxxxxxxxx
$981000

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%28,731,912
1,900,824Institution3.63%15,681,798
1,193,000Insider2.28%9,842,250
1,170,451Institution2.24%9,656,221
900,608Institution1.72%7,430,016
887,002Institution1.69%7,317,767
643,917Institution1.23%5,312,315
617,222Institution1.18%5,092,082
534,244Institution1.02%4,407,513
484,194Institution0.92%3,994,601

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
3,482,656Institution6.65%28,731,912
887,002Institution1.69%7,317,767
643,917Institution1.23%5,312,315
617,222Institution1.18%5,092,082
534,244Institution1.02%4,407,513
484,194Institution0.92%3,994,601
483,658Institution0.92%3,990,179
456,369Institution0.87%3,765,044
433,516Institution0.83%3,576,507
333,148Institution0.64%2,748,471

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
1,113,932Institution2.13%9,189,939
1,048,358Institution2.00%8,648,954
502,743Institution0.96%5,560,338
351,749Institution0.67%2,901,929
323,259Institution0.62%2,666,887
222,947Institution0.43%2,465,794
204,585Institution0.39%1,687,826
174,964Institution0.33%1,700,650
139,403Institution0.27%1,150,075
136,660Institution0.26%1,511,460

FAQ

Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 23.70% of the company's stock is held by institutional investors, 3.54% is held by insiders, and 43.12% is held by retail investors.
    What percentage of Prothena (PRTA) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 23.70% 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 43.12% 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.