Q1 2025 13F Holders as of 3/31/2025
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Type / Class
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Equity / Ordinary Shares, par value $0.01 per share
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Shares outstanding
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54.4M
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Number of holders
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158
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Total 13F shares, excl. options
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52.3M
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Shares change
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-1.18M
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Total reported value, excl. options
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$647M
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Value change
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-$15.4M
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Put/Call ratio
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0.31
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Number of buys
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57
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Number of sells
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-82
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Price
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$12.38
Significant Holders of PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share (PRTA) as of Q1 2025
200 filings reported holding PRTA - PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share as of Q1 2025.
PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share (PRTA) has 158 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 52.3M shares
of 54.4M outstanding shares and own 96.04% of the company stock.
Largest 10 shareholders include EcoR1 Capital, LLC (11.6M shares), FMR LLC (7.94M shares), WELLINGTON MANAGEMENT GROUP LLP (5.2M shares), BlackRock, Inc. (4.04M shares), PRICE T ROWE ASSOCIATES INC /MD/ (3.46M shares), ARMISTICE CAPITAL, LLC (2.2M shares), Palo Alto Investors LP (1.66M shares), STATE STREET CORP (1.52M shares), Siren, L.L.C. (1.28M shares), and VANGUARD GROUP INC (1.27M shares).
This table shows the top 158 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.