A detailed history of Janney Montgomery Scott LLC transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Janney Montgomery Scott LLC holds 106,898 shares of PRTA stock, worth $1.13 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares
106,898
Holding current value
$1.13 Million
% of portfolio
0.0%

Shares

1 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Oct 27, 2025

BUY
$6.22 - $9.76 $664,905 - $1.04 Million
106,898 New
106,898 $1.04 Million

Others Institutions Holding PRTA

About PROTHENA CORP PUBLIC LTD CO


  • Ticker PRTA
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 46,922,800
  • Market Cap $495M
  • 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...
More about PRTA
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