Type / Class
Equity / Ordinary Shares, par value $0.01 per share
Shares outstanding
53,840,864
Total 13F shares
47,211,329
Share change
+4,629,405
Total reported value
$450,910,590
Put/Call ratio
104%
Price per share
$9.55
Number of holders
177
Value change
+$43,954,182
Number of buys
82
Number of sells
81

Institutional Holders of PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share (PRTA) as of Q4 2025

As of 31 Dec 2025, PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share (PRTA) was held by 177 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 47,211,329 shares. The largest 10 holders included FMR LLC, BlackRock, Inc., Rubric Capital Management LP, STATE STREET CORP, VANGUARD GROUP INC, D. E. Shaw & Co., Inc., ARMISTICE CAPITAL, LLC, ADAR1 Capital Management, LLC, ACADIAN ASSET MANAGEMENT LLC, and Palo Alto Investors LP. This page lists 177 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
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.