Palo Alto Investors LP Prothena Corp Public LTD CO Transaction History
Palo Alto Investors LP
- $442 Million
- Q2 2025
A detailed history of Palo Alto Investors LP transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Palo Alto Investors LP holds 1,274,753 shares of PRTA stock, worth $9.61 Million. This represents 1.75% of its overall portfolio holdings.
Number of Shares
1,274,753
Previous 1,659,734
23.2%
Holding current value
$9.61 Million
Previous $20.5 Million
62.34%
% of portfolio
1.75%
Previous 4.1%
Shares
24 transactions
Others Institutions Holding PRTA
# of Institutions
218Shares Held
34.1MCall Options Held
879KPut Options Held
791K-
Black Rock Inc. New York, NY3.86MShares$29.1 Million0.0% of portfolio
-
Adar1 Capital Management, LLC Austin, TX3.38MShares$25.4 Million3.14% of portfolio
-
Armistice Capital, LLC New York, NY2.24MShares$16.9 Million0.24% of portfolio
-
Vanguard Group Inc Valley Forge, PA2.18MShares$16.4 Million0.0% of portfolio
-
Federated Hermes, Inc. Pittsburgh, PA1.18MShares$8.91 Million0.01% of portfolio
About PROTHENA CORP PUBLIC LTD CO
- Ticker PRTA
- Exchange NASDAQ
- Sector Healthcare
- Industry Biotechnology
- Shares Outstandng 46,922,800
- Market Cap $354M
- Description
- Prothena Corporation plc, a late-stage clinical company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing Birtamimab, an investigational humanized antibody that is in Phase III clinical trial for the treatment of AL amyloidosis; Prasinezumab, a human...