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Prothena (PRTA)
NASDAQ:PRTA
US Market

Prothena (PRTA) Ownership - Who Owns Prothena?

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Prothena (PRTA) Ownership Overview

23.28%29.83%38.19%8.31%0.38%
23.28% Insiders
38.19% Other Institutional Investors
8.31% ETFs
0.38% Public Companies and Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 76.33% of the company’s stock is owned by Institutional Investors, 23.28% is owned by Insiders, and 0.38% 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 68.02% of the company’s stock is owned by Institutional Investors, 23.28% is owned by Insiders, and 8.31% 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%30,236,197
4,219,512Institution7.84%24,051,218
4,036,140Insider7.50%23,005,998
3,882,601Institution7.21%22,130,826
3,168,827Insider5.89%18,062,314
2,146,226Institution3.99%12,233,488
1,638,103Institution3.04%9,337,187
950,065Institution1.77%5,415,371
813,917Institution1.51%4,639,327
638,735Institution1.19%3,640,790

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
4,219,512Institution7.84%24,051,218
3,882,601Institution7.21%22,130,826
1,638,103Institution3.04%9,337,187
813,917Institution1.51%4,639,327
638,735Institution1.19%3,640,790
597,368Institution1.11%3,404,998
555,226Institution1.03%3,164,788
467,483Institution0.87%2,664,653
433,724Institution0.81%2,472,227
396,636Institution0.74%2,260,825

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
1,068,151Institution1.98%6,088,461
605,375Institution1.12%2,778,671
466,869Institution0.87%2,642,479
263,092Institution0.49%1,499,624
220,920Institution0.41%1,259,244
215,824Institution0.40%990,632
178,087Institution0.33%1,007,972
153,909Institution0.29%877,281
123,104Institution0.23%696,769
97,748Institution0.18%553,254

FAQ

Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 38.19% of the company's stock is held by institutional investors, 23.28% is held by insiders, and 0.38% is held by retail investors.
    What percentage of Prothena (PRTA) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 38.19% 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 0.38% 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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