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

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Prothena (PRTA) Ownership Overview

24.47%19.27%19.20%6.15%30.91%
24.47% Insiders
19.20% Other Institutional Investors
6.15% ETFs
30.91% Public Companies and
Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 44.62% of the company’s stock is owned by Institutional Investors, 24.47% is owned by Insiders, and 30.91% 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 38.47% of the company’s stock is owned by Institutional Investors, 24.47% is owned by Insiders, and 6.15% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
May 06, 2025
xxxxxxxxxxxxx
$50825217
May 02, 2025
xxxxxxxxxxxxx
$2749173

Recent Hedge Fund Trading Activity

Date
Firm
Activity
Value

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
5,304,596Insider9.85%52,674,638
4,036,140Insider7.50%40,078,870
3,872,339Institution7.19%38,452,326
3,168,827Insider5.89%31,466,452
1,752,750Institution3.26%17,404,808
961,751Institution1.79%9,550,187
809,515Institution1.50%8,038,484
759,125Institution1.41%7,538,111
643,917Institution1.20%6,394,096
605,375Institution1.12%6,011,374

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
3,872,339Institution7.19%38,452,326
961,751Institution1.79%9,550,187
759,125Institution1.41%7,538,111
643,917Institution1.20%6,394,096
605,375Institution1.12%6,011,374
478,637Institution0.89%4,752,865
438,423Institution0.81%4,353,540
321,955Institution0.60%3,197,013
300,134Institution0.56%2,980,331
282,898Institution0.53%2,809,177

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
991,662Institution1.84%10,095,119
457,138Institution0.85%4,461,667
310,045Institution0.58%3,156,258
282,301Institution0.52%2,803,249
205,905Institution0.38%2,096,113
193,299Institution0.36%1,886,598
154,448Institution0.29%1,572,281
128,737Institution0.24%1,256,473
70,340Institution0.13%716,061
49,589Institution0.09%492,419

FAQ

Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 19.20% of the company's stock is held by institutional investors, 24.47% is held by insiders, and 30.91% is held by retail investors.
    What percentage of Prothena (PRTA) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 19.20% 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 30.91% of Prothena (PRTA) stock is held by retail investors.
        Who owns the most shares of Prothena (PRTA)?
        Ecor1 Capital, Llc 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.
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