NASDAQ:PRTA Prothena (PRTA) Stock Price, News & Analysis → The Gold Grab of the Century (From Colonial Metals) (Ad) Free prta Stock Alerts $20.87 +0.31 (+1.51%) (As of 04/26/2024 ET) Add Compare Share Share Today's Range$20.34▼$21.1850-Day Range$20.56▼$30.3052-Week Range$19.65▼$79.65Volume369,977 shsAverage Volume494,396 shsMarket Capitalization$1.12 billionP/E RatioN/ADividend YieldN/APrice Target$68.14 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 Buy2.71 Rating ScoreUpside/Downside226.5% Upside$68.14 Price TargetShort InterestBearish12.34% of Shares Sold ShortDividend StrengthN/ASustainabilityN/ANews Sentiment-0.26Based on 4 Articles This WeekInsider TradingN/AProj. Earnings GrowthGrowingFrom ($4.88) to ($4.33) 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.2.34 out of 5 starsMedical Sector488th out of 914 stocksPharmaceutical Preparations Industry212th out of 418 stocks 4.4 Analyst's Opinion Consensus RatingProthena has received a consensus rating of Moderate Buy. The company's average rating score is 2.71, and is based on 5 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 0.0 Short Interest Percentage of Shares Shorted12.34% 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 10.1, which indicates bearish sentiment.Change versus previous monthShort interest in Prothena has recently increased by 2.47%, 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 -0.26. 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 0.32 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 4 news articles for Prothena this week, compared to 3 articles on an average week.Search InterestOnly 3 people have searched for PRTA on MarketBeat in the last 30 days. This is a decrease of -25% compared to the previous 30 days.MarketBeat FollowsOnly 1 people have added Prothena to their MarketBeat watchlist in the last 30 days. This is a decrease of -50% compared to the previous 30 days. Previous Next 3.3 Company Ownership Insider Buying vs. Insider SellingIn the past three months, Prothena insiders have not sold or bought any 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 ($4.88) to ($4.33) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Prothena is -7.45, 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 -7.45, 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 2.00. 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 Banyan Hill PublishingThe Best AI Stock to Own in the World Today is Trading for Just $25“Titan of Tech” Bets Big on Tiny AI Company He’s made as much as 3,250,000% in just three years on companies like Facebook, Airbnb, and PayPal… But our research shows his latest investment could be his most successful venture yet.See how you can invest alongside him 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 26, 2024 | nasdaq.comCommit To Buy Prothena Corp At $15, Earn 21.3% Using OptionsApril 26, 2024 | americanbankingnews.comProthena (NASDAQ:PRTA) Hits New 1-Year Low at $20.32April 27, 2024 | Colonial Metals (Ad)Conflict In Israel Sends Gold Soaring ???? Here’s How To Get Your ShareThe latest flare-up between Israel and Palestinian militants has sent gold prices surging. Why? Because savvy investors know the endgame of the elites at play… Geopolitical crises breed uncertainty — and gold thrives on uncertainty. April 26, 2024 | americanbankingnews.comProthena Co. plc (NASDAQ:PRTA) Given Average Recommendation of "Moderate Buy" by BrokeragesApril 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 17, 2024 | investing.comProthena reports potential AL amyloidosis treatmentApril 15, 2024 | businesswire.comProthena Announces Review on Birtamimab Mechanism of Action and Pharmacological Characteristics Published in Leukemia & LymphomaApril 27, 2024 | Colonial Metals (Ad)Conflict In Israel Sends Gold Soaring ???? Here’s How To Get Your ShareThe latest flare-up between Israel and Palestinian militants has sent gold prices surging. Why? Because savvy investors know the endgame of the elites at play… Geopolitical crises breed uncertainty — and gold thrives on uncertainty. March 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 OutlookFebruary 15, 2024 | seekingalpha.comProthena Corporation plc 2023 Q4 - Results - Earnings Call PresentationSee 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 Earnings2/15/2024Today4/27/2024Next 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$68.14 High Stock Price Target$90.00 Low Stock Price Target$35.00 Potential Upside/Downside+226.5%Consensus RatingModerate Buy Rating Score (0-4)2.71 Research Coverage7 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 / Sales12.27 Cash FlowN/A Price / Cash FlowN/A Book Value$10.46 per share Price / Book2.00Miscellaneous Outstanding Shares53,720,000Free Float38,571,000Market Cap$1.12 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:XNCRMannKindNASDAQ:MNKDBelite BioNASDAQ:BLTEMirum PharmaceuticalsNASDAQ:MIRMAbCellera BiologicsNASDAQ:ABCLView All CompetitorsInsiders & InstitutionsPinnacle Associates Ltd.Sold 483 shares on 4/26/2024Ownership: 0.233%PNC Financial Services Group Inc.Bought 1,122 shares on 3/22/2024Ownership: 0.003%Wellington Management Group LLPBought 452,455 shares on 3/5/2024Ownership: 4.829%Price T Rowe Associates Inc. MDBought 417,338 shares on 2/16/2024Ownership: 7.895%Boxer Capital LLCBought 40,000 shares on 2/15/2024Ownership: 1.239%View All Insider TransactionsView All Institutional Transactions PRTA Stock Analysis - Frequently Asked Questions Should I buy or sell Prothena stock right now? 7 Wall Street analysts have issued "buy," "hold," and "sell" ratings for Prothena in the last twelve months. There are currently 2 hold ratings and 5 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? 7 brokers have issued 1-year target prices 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 $68.14 in the next year. This suggests a possible upside of 226.5% 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 stock has decreased by 42.6% and is now trading at $20.87. 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 analysts' consensus estimates of ($1.23) by $0.03. The biotechnology company earned $0.32 million during the quarter, compared to the consensus estimate of $2.15 million. Prothena had a negative net margin of 160.91% and a negative trailing twelve-month return on equity of 24.84%. The business's quarterly revenue was down 99.4% on a year-over-year basis. During the same quarter in the prior year, the firm 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).ALPS Medical Breakthroughs ETF (SBIO). 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). Who are Prothena's major shareholders? Prothena's stock is owned by a number of institutional and retail investors. Top institutional investors include Pinnacle Associates Ltd. (0.23%). Insiders that own company stock include Brandon S Smith, Carol D Karp, Carol D Karp, Christopher S Henney, Christopher S Henney, Dennis J Selkoe, Dennis J Selkoe, Ecor1 Capital, Llc, Gene G Kinney, Hideki Garren, Karin L Walker, Karin L Walker, Lars Ekman, Michael J Malecek, Michael J Malecek, Richard T Collier, Shane Cooke, Tran Nguyen, Wagner M Zago and Wagner M Zago. View institutional ownership trends. 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. Compare Top Brokerages Here. This page (NASDAQ:PRTA) was last updated on 4/27/2024 by MarketBeat.com Staff From Our PartnersConflict In Israel Sends Gold Soaring ???? Here’s How To Get Your ShareColonial MetalsThese AI trades triggered this morning (545% return)Prosper Trading AcademyForget AI, Imperium Is Expected to Grow 320,00% in 3 YearsBanyan Hill PublishingProtect Your Bank Account Before It’s Too LateWeiss RatingsDid You Get Your Free Bitcoin Yet?Crypto Swap ProfitsThe A.I. story nobody is telling you (Read ASAP)TradeSmithThey say it’s ‘unstoppable’ – How I made 43,509% Investing DailyBitcoin Rockets To Record High But Buy THIS InsteadParadigm Press Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. 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