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PRTA NASDAQ

Prothena Corporation plc
1W: -4.6% 1M: -12.2% 3M: +4.3% YTD: +2.3% 1Y: +29.1% 3Y: -87.2% 5Y: -59.0%
$9.83
+0.42 (+4.46%)
After Hours: $9.64 (-0.19, -1.88%)
Weekly Expected Move ±8.3%
$8 $9 $10 $11 $11
NASDAQ · Healthcare · Biotechnology · Alpha Radar Sell · Power 31 · $514.6M mcap · 42M float · 1.24% daily turnover · Short 68% of daily vol
Smart Money Score
Watch 25
Insider
Congress
ETF Holdings
Key Statistics
Market Cap$514.6M
52W Range4.32-11.8
Volume519,413
Avg Volume519,793
Beta-0.23
Dividend
Analyst Ratings
20 Buy 6 Hold 2 Sell
Consensus Buy
Company Info
CEOGene G. Kinney
Employees163
SectorHealthcare
IndustryBiotechnology
IPO Date2012-12-18
77 Sir John Rogerson’s Quay
Dublin 2
IE
353 1 236 2500
About Prothena Corporation plc

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 humanized monoclonal antibody, which is in Phase IIb clinical trial for the treatment of Parkinson's disease; PRX004 that completed Phase I clinical trial for the treatment of Transthyretin amyloidosis; and PRX005, which is in Phase I clinical trial for the treatment of Alzheimer's disease. Its discovery and preclinical programs include PRX012 for the treatment of Alzheimer's disease; and dual Aß-Tau vaccine for the treatment and prevention of Alzheimer's disease. Prothena Corporation plc has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target alpha-synuclein; and a collaboration agreement with Bristol-Myers Squibb to develop antibodies. The company was founded in 2012 and is based in Dublin, Ireland.

Recent Insider Trades

NameTypeSharesPriceDate
WELCH DANIEL G A-Award 27,000 $9.76 2026-05-15
Selkoe Dennis J. A-Award 27,000 $9.76 2026-05-15
Ekman Lars A-Award 27,000 $9.76 2026-05-15
Dunn William H. Jr. A-Award 27,000 $9.76 2026-05-15
Cooke Shane A-Award 27,000 $9.76 2026-05-15

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms