
PROTHENA CORP PLC
PRTANASDAQTrading Snapshot
- Day Range
- $625.83 β $641.25
- 52-Week Range
- $7.39 β $11.80
- Volume
- $3.18B
- Avg Volume
- $2.51B
- Shares Outstanding
- 52.4M
- Next Earnings
- Oct 16, 2026
Fundamentals Snapshot
- Annual Revenue
- $10M
- Last Q Revenue
- $1M
- P/E Ratio
- β
- P/S Ratio
- 8.2x
- EPS (TTM)
- $-0.83
- Dividend Yield
- β
Why Investors Own PRTA
- βHigh-growth profile β revenue up +54.8% YoY with expanding US Equity exposure.
- βHealthy economics β 49% gross margin and 12% free-cash-flow margin.
- βNew products and segments could unlock additional revenue streams.
Execution delays, intensifying competition, and valuation compression if growth decelerates.
Financial Trends
About PROTHENA CORP PLC
Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation. Its product pipeline includes Prasinezumab, an investigational humanized monoclonal antibody which is in Phase 3 clinical trial for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in Phase 3 clinical trial for the treatment of transthyretin amyloidosis; BMS-986446, an anti-tau antibody which is in Phase 2 clinical trial to treat Alzheimer's disease; PRX019, an investigational antibody which is in Phase 1 clinical trial for the treatment of neurodegenerative diseases; and PRX123, a Dual AΓ-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease. In addition, it develops discovery- and late-preclinical-stage programs include TDP-43 CYTOPE for the treatment of amyotrophic lateral sclerosis; PRX012, a next-generation anti-AΓ antibody which is in phase 1 clinical trial to treat Alzheimer's disease; and PRX012-TfR, a preclinical program for the treatment of Alzheimer's disease. It 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 a-synuclein, including prasinezumab; and master collaboration agreement with Bristol Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. Prothena Corporation plc was incorporated in 2012 and is based in Dublin, Ireland.
Otter Score Breakdown
βAnalyst Price Target
βLatest News & Updates
PROTHENA CORP PLC tops quarterly estimates as demand accelerates
Revenue grew double digits with management guiding above consensus; margins continued to expand.
Analysts lift PRTA price targets on improving margins
Several firms raised targets, citing stronger free cash flow and a healthier backlog.
PROTHENA CORP PLC announces new agreement to expand its footprint
The move broadens the companyβs reach and could add incremental revenue over the next year.