Brown Brothers Harriman & CO Prothena Corp Public LTD CO Transaction History
Brown Brothers Harriman & CO
- $15.7 Billion
- Q3 2025
A detailed history of Brown Brothers Harriman & CO transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Brown Brothers Harriman & CO holds 5,000 shares of PRTA stock, worth $51,250. This represents 0.0% of its overall portfolio holdings.
Number of Shares
5,000
Previous 5,000
-0.0%
Holding current value
$51,250
Previous $30,000
60.0%
% of portfolio
0.0%
Previous 0.0%
Shares
1 transactions
Others Institutions Holding PRTA
# of Institutions
217Shares Held
34.9MCall Options Held
656KPut Options Held
1.12M-
Black Rock Inc. New York, NY3.86MShares$39.5 Million0.0% of portfolio
-
Vanguard Group Inc Valley Forge, PA2.05MShares$21 Million0.0% of portfolio
-
Armistice Capital, LLC New York, NY1.82MShares$18.7 Million0.27% of portfolio
-
Rubric Capital Management LP New York, NY1.54MShares$15.8 Million0.25% of portfolio
-
Adar1 Capital Management, LLC Austin, TX1.47MShares$15.1 Million1.35% of portfolio
About PROTHENA CORP PUBLIC LTD CO
- Ticker PRTA
- Exchange NASDAQ
- Sector Healthcare
- Industry Biotechnology
- Shares Outstandng 46,922,800
- Market Cap $481M
- 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...