NASDAQ:PRTA Prothena (PRTA) Stock Price, News & Analysis → The “Perfect Storm” for Gold (From Gold Safe Exchange) (Ad) Free PRTA Stock Alerts $20.57 -0.43 (-2.05%) (As of 04/18/2024 ET) Add Compare Share Share Today's Range$20.44▼$21.2650-Day Range$20.57▼$30.3052-Week Range$20.44▼$79.65Volume567,688 shsAverage Volume774,167 shsMarket Capitalization$1.11 billionP/E RatioN/ADividend YieldN/APrice Target$69.63 Stock AnalysisStock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial MediaStock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial Media Get Prothena alerts: Email Address Prothena MarketRank™ Stock AnalysisAnalyst RatingModerate Buy2.78 Rating ScoreUpside/Downside238.5% Upside$69.63 Price TargetShort InterestBearish12.04% of Shares Sold ShortDividend StrengthN/ASustainabilityN/ANews Sentiment-0.12Based on 13 Articles This WeekInsider TradingSelling Shares$170,000 Sold Last QuarterProj. Earnings GrowthGrowingFrom ($4.89) to ($4.34) Per ShareSee Full Details Hide Full Details Overall MarketRank™New Rank-Based ScoringMarketRank™ is calculated by averaging available category scores (with extra weight given to analysis and valuation), then ranking the company's weighted average against that of other companies.2.83 out of 5 starsMedical Sector383rd out of 918 stocksPharmaceutical Preparations Industry164th out of 402 stocks 4.4 Analyst's Opinion Consensus RatingProthena has received a consensus rating of Moderate Buy. The company's average rating score is 2.78, and is based on 7 buy ratings, 2 hold ratings, and no sell ratings.Amount of Analyst CoverageProthena has been the subject of 6 research reports in the past 90 days, demonstrating strong analyst interest in this stock. Previous Next 1.0 Short Interest Percentage of Shares Shorted12.04% of the outstanding shares of Prothena have been sold short.Short Interest Ratio / Days to CoverProthena has a short interest ratio ("days to cover") of 8.1.Change versus previous monthShort interest in Prothena has recently increased by 3.52%, indicating that investor sentiment is decreasing. Previous Next 0.0 Dividend Strength Dividend YieldProthena does not currently pay a dividend.Dividend GrowthProthena does not have a long track record of dividend growth. Previous Next N/A Sustainability and ESG Overall ESG (Environmental, Social, and Governance) ScoreThere is no current Upright™ data available for PRTA. Previous Next 1.0 News and Social Media Coverage News SentimentProthena has a news sentiment score of -0.12. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.49 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 13 news articles for Prothena this week, compared to 3 articles on an average week.Search InterestOnly 4 people have searched for PRTA on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days. Previous Next 4.2 Company Ownership Insider Buying vs. Insider SellingIn the past three months, Prothena insiders have sold more of their company's stock than they have bought. Specifically, they have bought $0.00 in company stock and sold $170,000.00 in company stock.Percentage Held by Insiders28.20% of the stock of Prothena is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions97.08% of the stock of Prothena is held by institutions. High institutional ownership can be a signal of strong market trust in this company. Previous Next 0.6 Earnings and Valuation Earnings GrowthEarnings for Prothena are expected to grow in the coming year, from ($4.89) to ($4.34) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Prothena is -7.35, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Prothena is -7.35, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioProthena has a P/B Ratio of 1.97. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities. Previous Next See Top Rated MarketRank™ Stocks Here Ad DTIBiden’s $374B Giveaway Into This SectorBiden’s Climate Bill Could Send Your Retirement Accounts Soaring – Or Diving See what this $374B giveaway could mean for your retirement right hereClick here for the full story About Prothena Stock (NASDAQ:PRTA)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. 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, for the treatment of Parkinson's disease and other related synucleinopathies which is in Phase IIb clinical trial; NNC6019 that is in Phase lI clinical trial for the treatment of ATTR amyloidosis; and BMS-986446 and PRX012, which is in Phase I clinical trial for the treatment of Alzheimer's disease. Its discovery and preclinical programs include PRX123, a dual Aß-Tau vaccine for the treatment and prevention of Alzheimer's disease; and PRX019 for the treatment of neurogenerative diseases, as well as TDP-43 for the treatment of amyotrophic lateral sclerosis. 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 a-synuclein, including prasinezumab; and a collaboration agreement with Bristol-Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. The company was incorporated in 2012 and is based in Dublin, Ireland.Read More PRTA Stock Price History View Price History Chart DataSkip Price History Chart 30 days | 90 days | 365 days | Advanced Chart PRTA Stock News HeadlinesApril 18, 2024 | americanbankingnews.comZacks Research Brokers Increase Earnings Estimates for Prothena Co. plc (NASDAQ:PRTA)April 18, 2024 | americanbankingnews.comProthena (NASDAQ:PRTA) Hits New 12-Month Low at $21.31April 18, 2024 | DTI (Ad)Biden’s $374B Giveaway Into This SectorBiden’s Climate Bill Could Send Your Retirement Accounts Soaring – Or Diving See what this $374B giveaway could mean for your retirement right hereApril 17, 2024 | investing.comProthena reports potential AL amyloidosis treatmentApril 16, 2024 | americanbankingnews.comFinancial Comparison: Prothena (NASDAQ:PRTA) and China Health Industries (OTCMKTS:CHHE)April 15, 2024 | businesswire.comProthena Announces Review on Birtamimab Mechanism of Action and Pharmacological Characteristics Published in Leukemia & LymphomaApril 13, 2024 | americanbankingnews.comQ1 2024 EPS Estimates for Prothena Co. plc Cut by Leerink Partnrs (NASDAQ:PRTA)April 12, 2024 | americanbankingnews.comProthena (NASDAQ:PRTA) Sets New 52-Week Low at $21.91April 18, 2024 | DTI (Ad)Biden’s $374B Giveaway Into This SectorBiden’s Climate Bill Could Send Your Retirement Accounts Soaring – Or Diving See what this $374B giveaway could mean for your retirement right hereApril 11, 2024 | americanbankingnews.comProthena's (PRTA) "Overweight" Rating Reaffirmed at Cantor FitzgeraldMarch 13, 2024 | markets.businessinsider.comDemystifying Prothena Corp: Insights From 8 Analyst ReviewsMarch 7, 2024 | markets.businessinsider.comPiper Sandler Reaffirms Their Buy Rating on Prothena (PRTA)March 5, 2024 | businesswire.comProthena to Participate in Upcoming Healthcare ConferencesMarch 4, 2024 | finance.yahoo.comProthena Appoints David Ford to Newly Created Chief People Officer PositionMarch 1, 2024 | finance.yahoo.comProthena Corporation plc (PRTA)February 23, 2024 | seekingalpha.comProthena: Alzheimer's Data Update In 2024 Could Move The NeedleFebruary 21, 2024 | msn.comProthena appoints Daniel G. Welch as Chair DesignateFebruary 21, 2024 | businesswire.comProthena Announces Appointment of Daniel G. Welch as Director and Chair DesignateFebruary 17, 2024 | finance.yahoo.comPRTA Mar 2024 105.000 callFebruary 17, 2024 | finance.yahoo.comProthena Full Year 2023 Earnings: Beats ExpectationsFebruary 16, 2024 | markets.businessinsider.comPromising Outlook for Prothena’s Amyloidosis Treatments: Analyst Endorses Buy RatingFebruary 16, 2024 | finance.yahoo.comProthena (PRTA) Q4 Earnings Miss Estimates on Higher R&D ExpenseFebruary 16, 2024 | markets.businessinsider.comRBC Capital Reaffirms Their Hold Rating on Prothena (PRTA)February 16, 2024 | markets.businessinsider.comDecoding 6 Analyst Evaluations For Prothena CorpFebruary 16, 2024 | finance.yahoo.comProthena Corporation plc (NASDAQ:PRTA) Q4 2023 Earnings Call TranscriptFebruary 15, 2024 | finance.yahoo.comProthena Reports Fourth Quarter and Full Year 2023 Financial Results, and Provides Financial Guidance and Business HighlightsFebruary 15, 2024 | finance.yahoo.comProthena Corp PLC (PRTA) Reports 2023 Financial Results and Provides 2024 OutlookSee More Headlines Receive PRTA Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Prothena and its competitors with MarketBeat's FREE daily newsletter. Email Address Company Calendar Last Earnings2/15/2024Today4/18/2024Next Earnings (Estimated)5/02/2024Fiscal Year End12/31/2024Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Pharmaceutical preparations Sub-IndustryN/A Current SymbolNASDAQ:PRTA CUSIPN/A CIK1559053 Webwww.prothena.com Phone(531) 236-2500Fax353-1902-3510Employees173Year FoundedN/APrice Target and Rating Average Stock Price Target$69.63 High Stock Price Target$90.00 Low Stock Price Target$35.00 Potential Upside/Downside+235.9%Consensus RatingModerate Buy Rating Score (0-4)2.78 Research Coverage9 Analysts Profitability EPS (Most Recent Fiscal Year)($2.80) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income$-147,030,000.00 Net Margins-160.91% Pretax Margin-175.64% Return on Equity-24.84% Return on Assets-20.24% Debt Debt-to-Equity RatioN/A Current Ratio11.24 Quick Ratio11.24 Sales & Book Value Annual Sales$91.37 million Price / Sales12.19 Cash FlowN/A Price / Cash FlowN/A Book Value$10.46 per share Price / Book1.98Miscellaneous Outstanding Shares53,720,000Free Float38,571,000Market Cap$1.11 billion OptionableOptionable Beta0.21 The Next 7 Blockbuster Stocks for Growth InvestorsWondering what the next stocks will be that hit it big, with solid fundamentals? Click the link below to learn more about how your portfolio could bloom.Get This Free Report Key ExecutivesDr. Gene G. Kinney Ph.D. (Age 55)President, CEO & Director Comp: $1.03MMr. Tran B. Nguyen M.B.A. (Age 50)CFO & Chief Strategy Officer Comp: $762.86kMr. Brandon S. Smith (Age 49)Chief Operating Officer Comp: $756.41kMs. Carol D. Karp (Age 71)Chief Regulatory Officer Comp: $697.51kDr. Hideki Garren M.D. (Age 59)Ph.D., Chief Medical Officer Comp: $809.59kDr. Wagner M. Zago (Age 51)Chief Scientific Officer Comp: $478.79kMr. Mark C. Johnson C.F.A.Vice President of Investor RelationsMr. Michael J. Malecek (Age 58)Chief Legal Officer & Company Secretary Comp: $588.25kMr. David A. Ford (Age 54)Chief People Officer More ExecutivesKey CompetitorsXencorNASDAQ:XNCROcular TherapeutixNASDAQ:OCULCollegium PharmaceuticalNASDAQ:COLLMirum PharmaceuticalsNASDAQ:MIRMAbCellera BiologicsNASDAQ:ABCLView All CompetitorsInsiders & InstitutionsPNC Financial Services Group Inc.Bought 1,122 shares on 3/22/2024Ownership: 0.003%Vanguard Group Inc.Bought 39,781 shares on 3/11/2024Ownership: 1.993%Wellington Management Group LLPBought 452,455 shares on 3/5/2024Ownership: 4.829%Goldman Sachs Group Inc.Bought 83,463 shares on 3/1/2024Ownership: 0.621%GSA Capital Partners LLPBought 34,850 shares on 2/16/2024Ownership: 0.065%View All Insider TransactionsView All Institutional Transactions PRTA Stock Analysis - Frequently Asked Questions Should I buy or sell Prothena stock right now? 9 Wall Street analysts have issued "buy," "hold," and "sell" ratings for Prothena in the last twelve months. There are currently 2 hold ratings and 7 buy ratings for the stock. The consensus among Wall Street analysts is that investors should "moderate buy" PRTA shares. View PRTA analyst ratings or view top-rated stocks. What is Prothena's stock price target for 2024? 9 analysts have issued 1 year price targets for Prothena's shares. Their PRTA share price targets range from $35.00 to $90.00. On average, they anticipate the company's stock price to reach $69.63 in the next year. This suggests a possible upside of 238.5% from the stock's current price. View analysts price targets for PRTA or view top-rated stocks among Wall Street analysts. How have PRTA shares performed in 2024? Prothena's stock was trading at $36.34 on January 1st, 2024. Since then, PRTA shares have decreased by 43.4% and is now trading at $20.57. View the best growth stocks for 2024 here. When is Prothena's next earnings date? The company is scheduled to release its next quarterly earnings announcement on Thursday, May 2nd 2024. View our PRTA earnings forecast. How were Prothena's earnings last quarter? Prothena Co. plc (NASDAQ:PRTA) announced its earnings results on Thursday, February, 15th. The biotechnology company reported ($1.26) earnings per share (EPS) for the quarter, missing the consensus estimate of ($1.23) by $0.03. The biotechnology company earned $0.32 million during the quarter, compared to analyst estimates of $2.15 million. Prothena had a negative trailing twelve-month return on equity of 24.84% and a negative net margin of 160.91%. The company's revenue for the quarter was down 99.4% on a year-over-year basis. During the same quarter last year, the business earned $0.12 EPS. What ETFs hold Prothena's stock? ETFs with the largest weight of Prothena (NASDAQ:PRTA) stock in their portfolio include iShares Neuroscience and Healthcare ETF (IBRN), Principal Healthcare Innovators ETF (BTEC), ALPS Medical Breakthroughs ETF (SBIO), First Trust Nasdaq Pharmaceuticals ETF (FTXH) and Invesco Nasdaq Biotechnology ETF (IBBQ).iShares Biotechnology ETF (IBB). What other stocks do shareholders of Prothena own? Based on aggregate information from My MarketBeat watchlists, some companies that other Prothena investors own include Cara Therapeutics (CARA), Actinium Pharmaceuticals (ATNM), ArcelorMittal (MT), Merck & Co., Inc. (MRK), Energous (WATT), BioLineRx (BLRX), Gilead Sciences (GILD), Exelixis (EXEL) and ACADIA Pharmaceuticals (ACAD). How do I buy shares of Prothena? Shares of PRTA stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. 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