Upturn unsubscribed user
$1.14/ day, billed weekly
Cancel anytime
(Ad-Free, Unlimited access)​
NO CREDIT CARD REQUIRED
PRTA logo PRTA
Upturn stock ratingUpturn stock rating
PRTA logo

Prothena Corporation plc (PRTA)

Upturn stock ratingUpturn stock rating
$8.24
Last Close (24-hour delay)
Profit since last BUY19.94%
upturn advisory
Consider higher Upturn Star rating
BUY since 24 days
  • BUY Advisory
  • SELL Advisory (Profit)​
  • SELL Advisory (Loss)​
  • Profit
  • Loss
  • Pass (Skip investing)
Upturn Stock infoUpturn Stock info Stock price based on last close
*as per simulation
(see disclosures)
Time period over
  • ALL
  • YEAR
  • MONTH
  • WEEK

Upturn Advisory Summary

08/28/2025: PRTA (1-star) has a low Upturn Star Rating. Not recommended to BUY.

Upturn Star Rating

rating

Not Recommended Performance

These Stocks/ETFs, based on Upturn Advisory, consistently fall short of market performance, signaling caution before investing.

Number of Analysts

rating

10 Analysts rated it

Moderately tracked stock, growing coverage, gaining market and investor attention.

1 Year Target Price $15

1 Year Target Price $15

Analysts Price Target For last 52 week
$15 Target price
52w Low $4.32
Current$8.24
52w High $22.83

Analysis of Past Performance

Type Stock
Historic Profit -9.34%
Avg. Invested days 17
Today’s Advisory Consider higher Upturn Star rating
Upturn Star Rating Upturn stock ratingUpturn stock rating
Upturn Advisory Performance Upturn Advisory Performance 3.0
Stock Returns Performance Upturn Returns Performance 1.0
Upturn Profits based on simulationUpturn Profits based on simulation Profits based on simulation
Upturn Profits based on simulationUpturn Profits based on simulation Last Close 08/28/2025

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 441.41M USD
Price to earnings Ratio -
1Y Target Price 15
Price to earnings Ratio -
1Y Target Price 15
Volume (30-day avg) 10
Beta -0.03
52 Weeks Range 4.32 - 22.83
Updated Date 08/29/2025
52 Weeks Range 4.32 - 22.83
Updated Date 08/29/2025
Dividends yield (FY) -
Basic EPS (TTM) -5.62

Analyzing Revenue: Products, Geography and Growth

Revenue by Products

Product revenue - Year on Year

Earnings Date

Report Date 2025-08-04
When -
Estimate -1.22
Actual -2.34

Profitability

Profit Margin -
Operating Margin (TTM) -1176.63%

Management Effectiveness

Return on Assets (TTM) -29.8%
Return on Equity (TTM) -66.85%

Valuation

Trailing PE -
Forward PE 64.1
Enterprise Value 81905051
Price to Sales(TTM) 42.69
Enterprise Value 81905051
Price to Sales(TTM) 42.69
Enterprise Value to Revenue 7.92
Enterprise Value to EBITDA -3.58
Shares Outstanding 53830000
Shares Floating 40091494
Shares Outstanding 53830000
Shares Floating 40091494
Percent Insiders 18.66
Percent Institutions 79.74

ai summary icon Upturn AI SWOT

Prothena Corporation plc

stock logo

Company Overview

overview logo History and Background

Prothena Corporation plc, founded in 2012, focuses on developing novel therapeutics for neurodegenerative diseases. It evolved from Elan Corporation's research programs.

business area logo Core Business Areas

  • Neurodegenerative Disease Therapeutics: Prothena focuses on developing therapies targeting misfolded proteins implicated in diseases like Alzheimer's, Parkinson's, and ATTR amyloidosis.
  • Antibody Development: The company specializes in creating antibodies that can target and clear these problematic proteins.

leadership logo Leadership and Structure

Gene Kinney is the President and CEO. The company has a board of directors overseeing its strategic direction.

Top Products and Market Share

overview logo Key Offerings

  • PRX012 (Alzheimer's Disease): PRX012 is an anti-Au03b2 antibody being developed for the treatment of Alzheimer's disease. Competitors include Biogen (LEQEMBI), Eli Lilly (donanemab), and Roche (gantenerumab). Market share is currently emerging.
  • Birtamimab (ATTR Amyloidosis): Birtamimab is designed to neutralize soluble transthyretin aggregates in ATTR amyloidosis. Competitors include Alnylam Pharmaceuticals (ONPATTRO, AMVUTTRA) and Ionis Pharmaceuticals (Wainua). Phase 3 failure led to program halt.

Market Dynamics

industry overview logo Industry Overview

The biopharmaceutical industry focused on neurodegenerative diseases is characterized by high unmet need, significant investment in research and development, and regulatory hurdles.

Positioning

Prothena is a clinical-stage biotechnology company positioned to address significant unmet needs in neurodegenerative diseases. Its competitive advantage lies in its antibody engineering platform and expertise in targeting protein misfolding.

Total Addressable Market (TAM)

The total addressable market for Alzheimer's and Parkinson's therapeutics is estimated to be in the tens of billions of dollars. Prothena is positioned to capture a portion of this TAM with its innovative therapies, contingent on clinical success and regulatory approvals.

Upturn SWOT Analysis

Strengths

  • Proprietary antibody technology platform
  • Strong scientific expertise in neurodegenerative diseases
  • Experienced management team
  • Focused pipeline of therapeutic candidates

Weaknesses

  • Dependence on clinical trial outcomes
  • High cash burn rate
  • Relatively small company size
  • Past clinical trial failures (Birtamimab)

Opportunities

  • Partnerships with larger pharmaceutical companies
  • Advancements in diagnostic tools for early disease detection
  • Expansion into new disease areas
  • Regulatory approval of innovative therapies

Threats

  • Clinical trial failures
  • Competition from established pharmaceutical companies
  • Regulatory hurdles and delays
  • Patent challenges

Competitors and Market Share

competitor logo Key Competitors

  • BIIB
  • LLY
  • ALNY
  • IONS

Competitive Landscape

Prothena faces significant competition from larger pharmaceutical companies with more established resources. Prothena's advantage lies in its specialized focus and innovative antibody platform, but it must navigate the risks associated with clinical development and regulatory approval.

Growth Trajectory and Initiatives

Historical Growth: Historical growth is primarily based on R&D progress and securing funding. It is not directly reflected in revenue, which is typical for a clinical-stage biotech.

Future Projections: Future projections depend heavily on the success of ongoing clinical trials, particularly PRX012 in Alzheimer's disease. Analyst estimates vary widely depending on probability of clinical success.

Recent Initiatives: Recent initiatives include advancing PRX012 in clinical trials and exploring new therapeutic targets in neurodegenerative diseases.

Summary

Prothena is a clinical-stage biotechnology company focused on neurodegenerative diseases with a promising antibody technology platform. The company's future hinges on the success of its lead candidate, PRX012, and faces challenges due to its reliance on clinical trial outcomes and competition from larger companies. Clinical trial failures and regulatory hurdles pose significant threats. Successful development and commercialization could provide significant returns.

Peer Comparison

Sources and Disclaimers

Data Sources:

  • Prothena Corporation plc SEC Filings (10-K, 10-Q), Company Website, Analyst Reports

Disclaimers:

This analysis is based on publicly available information and is not financial advice. Investment decisions should be made based on individual due diligence and consultation with a financial professional. Market share data is estimated and may not be precise.

Upturn AI SummarizationUpturn AI Summarization AI Summarization is directionally correct and might not be accurate.

Upturn AI SummarizationUpturn AI Summarization Summarized information shown could be a few years old and not current.

Upturn AI SummarizationUpturn AI Summarization Fundamental Rating based on AI could be based on old data.

Upturn AI SummarizationUpturn AI Summarization AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.

About Prothena Corporation plc

Exchange NASDAQ
Headquaters -
IPO Launch date 2012-12-21
President, CEO & Director Dr. Gene G. Kinney Ph.D.
Sector Healthcare
Industry Biotechnology
Full time employees 163
Full time employees 163

Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. Its product pipeline include Prasinezumab, an investigational humanized monoclonal antibody which is in phase 2b clinical trial, as well as phase 1 and 2 clinical trials for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in phase 2 clinical trial for potential treatment of transthyretin amyloidosis; BMS-986446, an investigational antibody, which is in phase 2 clinical trial to treat Alzheimer's disease; PRX012, an investigational antibody, which is in phase 1 clinical trial to treat Alzheimer's disease; PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease; and PRX019, an investigational antibody, which is in phase 1 clinical trial for the potential treatment of neurodegenerative diseases. 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.