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Stocks to Compare Sections All Sections Selected Performance Chart Price & Volume MarketRank Analyst Ratings Sales & Book Value Profitability & Earnings Dividends Debt Ownership Miscellaneous Headlines About Compare NASDAQ:ABVXNASDAQ:CRDLNASDAQ:MREONASDAQ:PRTA On This Page Performance ChartPrice & VolumeMarketRank™Analyst RatingsSales & Book ValueProfitability & EarningsDividendsDebtOwnershipMiscellaneousHeadlinesAbout Comparison Ideas Stock Ideas Comparative Price Performance Over Time1 day7 days30 days90 days365 daysCompare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeABVXABIVAX Société Anonyme$8.19+0.5%$6.35$4.77▼$14.71$519.54M0.01149,370 shs121,539 shsCRDLCardiol Therapeutics$1.41+2.2%$1.08$0.77▼$3.12$116.48M1.03354,751 shs173,836 shsMREOMereo BioPharma Group$2.74+11.4%$2.29$1.58▼$5.02$435.66M0.471.13 million shs2.19 million shsPRTAProthena$5.41+6.9%$8.10$4.32▼$25.42$291.20M-0.08708,396 shs1.25 million shs2025 Gold Forecast: A Perfect Storm for DemandUnlock the timeless value of gold with our exclusive 2025 Gold Forecasting Report. Explore why gold remains the ultimate investment for safeguarding wealth against inflation, economic shifts, and global uncertainties. Whether you're planning for future generations or seeking a reliable asset in turbulent times, this report is your essential guide to making informed decisions.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceABVXABIVAX Société Anonyme0.00%+36.50%+19.75%+3.54%-39.47%CRDLCardiol Therapeutics0.00%+13.25%+23.67%+21.03%-44.71%MREOMereo BioPharma Group0.00%+28.04%+13.22%+10.04%-21.71%PRTAProthena0.00%+17.86%-23.80%-64.57%-75.90%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationABVXABIVAX Société Anonyme2.7853 of 5 stars3.54.00.00.03.00.80.6CRDLCardiol Therapeutics2.6115 of 5 stars3.74.00.00.02.60.00.6MREOMereo BioPharma Group1.9992 of 5 stars3.61.00.00.03.41.70.0PRTAProthena2.886 of 5 stars4.21.00.00.02.31.71.3Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceABVXABIVAX Société Anonyme 3.00Buy$31.00278.51% UpsideCRDLCardiol Therapeutics 3.40Buy$8.67514.66% UpsideMREOMereo BioPharma Group 3.25Buy$7.71181.54% UpsidePRTAProthena 2.33Hold$31.50482.26% UpsideCurrent Analyst Ratings BreakdownLatest CRDL, ABVX, MREO, and PRTA Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails6/2/2025CRDLCardiol TherapeuticsHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageBuy$9.005/28/2025PRTAProthenaBank of AmericaSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingNeutral ➝ Underperform5/27/2025PRTAProthenaPiper SandlerSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetOverweight ➝ Overweight$110.00 ➝ $81.005/27/2025PRTAProthenaJMP SecuritiesSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetMarket Outperform ➝ Market Outperform$78.00 ➝ $29.005/27/2025PRTAProthenaCantor FitzgeraldSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeOverweight ➝ Neutral5/27/2025PRTAProthenaJefferies Financial GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeBuy ➝ Hold$6.005/27/2025PRTAProthenaOppenheimerSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeOutperform ➝ Market Perform5/27/2025PRTAProthenaHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$30.00 ➝ $14.005/27/2025PRTAProthenaChardan CapitalSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$40.00 ➝ $18.005/13/2025MREOMereo BioPharma GroupNeedham & Company LLCSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$7.00 ➝ $7.005/13/2025PRTAProthenaCantor FitzgeraldSubscribe to MarketBeat All Access for the recommendation accuracy ratingUpgradeStrong-Buy(Data available from 6/8/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookABVXABIVAX Société AnonymeN/AN/AN/AN/A$3.37 per shareN/ACRDLCardiol TherapeuticsN/AN/AN/AN/A$0.32 per shareN/AMREOMereo BioPharma Group$1M435.66N/AN/A$0.36 per share7.61PRTAProthena$137.94M2.11N/AN/A$10.46 per share0.52Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateABVXABIVAX Société Anonyme-$159.90MN/A0.00N/AN/AN/AN/AN/A8/11/2025 (Estimated)CRDLCardiol Therapeutics-$20.84M-$0.34N/AN/AN/AN/A-194.40%-129.07%7/14/2025 (Estimated)MREOMereo BioPharma Group-$29.47M-$0.07N/AN/AN/AN/AN/AN/A8/12/2025 (Estimated)PRTAProthena-$147.03M-$2.08N/AN/AN/A-90.50%-22.67%-19.68%8/6/2025 (Estimated)Latest CRDL, ABVX, MREO, and PRTA EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/13/2025Q1 2025MREOMereo BioPharma Group-$0.01-$0.02-$0.01-$0.02$72.50 millionN/A5/8/2025Q1 2025PRTAProthena-$0.92-$1.12-$0.20-$1.12$8.18 million$2.83 million3/31/2025Q4 2024CRDLCardiol Therapeutics-$0.08-$0.07+$0.01-$0.07N/AN/A3/26/2025Q4 2024MREOMereo BioPharma Group$0.02-$0.01-$0.03-$0.01$72.50 millionN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthABVXABIVAX Société AnonymeN/AN/AN/AN/AN/ACRDLCardiol TherapeuticsN/AN/AN/AN/AN/AMREOMereo BioPharma GroupN/AN/AN/AN/AN/APRTAProthenaN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioABVXABIVAX Société Anonyme0.483.04N/ACRDLCardiol Therapeutics0.012.492.49MREOMereo BioPharma GroupN/A6.106.10PRTAProthenaN/A11.5211.52Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipABVXABIVAX Société Anonyme47.91%CRDLCardiol Therapeutics12.49%MREOMereo BioPharma Group62.83%PRTAProthena97.08%Insider OwnershipCompanyInsider OwnershipABVXABIVAX Société AnonymeN/ACRDLCardiol Therapeutics5.25%MREOMereo BioPharma Group5.50%PRTAProthena9.20%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableABVXABIVAX Société Anonyme6163.44 millionN/ANot OptionableCRDLCardiol Therapeutics2082.61 million78.27 millionNot OptionableMREOMereo BioPharma Group40159.00 million148.74 millionOptionablePRTAProthena13053.83 million38.64 millionOptionableCRDL, ABVX, MREO, and PRTA HeadlinesRecent News About These CompaniesPRTA Prothena Corporation plcJune 7 at 8:21 PM | seekingalpha.comShort Interest in Prothena Co. plc (NASDAQ:PRTA) Rises By 20.1%June 6 at 2:58 AM | americanbankingnews.comProthena Co. plc (NASDAQ:PRTA) Short Interest Up 20.1% in MayJune 6 at 12:31 AM | marketbeat.comUBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Trims Stake in Prothena Co. plc (NASDAQ:PRTA)June 3, 2025 | marketbeat.comAnalysts Set Prothena Co. plc (NASDAQ:PRTA) Price Target at $31.50June 3, 2025 | americanbankingnews.comProthena Co. plc (NASDAQ:PRTA) Given Consensus Recommendation of "Hold" by BrokeragesJune 1, 2025 | marketbeat.comFY2025 EPS Estimates for Prothena Cut by Chardan CapitalMay 31, 2025 | marketbeat.comHC Wainwright Has Weak Outlook for Prothena FY2027 EarningsMay 31, 2025 | americanbankingnews.comPiper Sandler Reduces Prothena (PRTA) Price Target to $81 from $110 Following AFFIRM-AL Trial DiscontinuationMay 30, 2025 | msn.comChardan Lowers Prothena (PRTA) Price Target Following AFFIRM-AL Trial FailureMay 30, 2025 | msn.comH.C. Wainwright Maintains Buy Rating on Prothena Corporation (NASDAQ:PRTA), Cuts PTMay 30, 2025 | insidermonkey.comFY2027 EPS Estimates for Prothena Decreased by HC WainwrightMay 30, 2025 | marketbeat.comWellington Management Group LLP Increases Position in Prothena Co. plc (NASDAQ:PRTA)May 30, 2025 | marketbeat.comProthena (NASDAQ:PRTA) Given Underperform Rating at Bank of AmericaMay 30, 2025 | americanbankingnews.comOppenheimer Downgrades Prothena Corporation (NASDAQ:PRTA) to Perform from OutperformMay 30, 2025 | finance.yahoo.comB of A Securities Downgrades Prothena (PRTA)May 29, 2025 | msn.comProthena (NASDAQ:PRTA) Lowered to Underperform Rating by Bank of AmericaMay 29, 2025 | marketbeat.comProthena (NASDAQ:PRTA) Price Target Cut to $81.00 by Analysts at Piper SandlerMay 29, 2025 | americanbankingnews.comProthena (NASDAQ:PRTA) Stock Rating Lowered by OppenheimerMay 29, 2025 | americanbankingnews.comChardan Capital Issues Pessimistic Forecast for Prothena (NASDAQ:PRTA) Stock PriceMay 29, 2025 | americanbankingnews.comJefferies Downgrades Prothena Corporation (PRTA) After Negative Trial ResultsMay 29, 2025 | finance.yahoo.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeCRDL, ABVX, MREO, and PRTA Company DescriptionsABIVAX Société Anonyme NASDAQ:ABVX$8.19 +0.04 (+0.49%) Closing price 06/6/2025 04:00 PM EasternExtended Trading$8.49 +0.31 (+3.72%) As of 06/6/2025 05:47 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.ABIVAX Société Anonyme, a clinical-stage biotechnology company, focuses on developing therapeutics that harness the body's natural regulatory mechanisms to stablize the immune response in patients with chronic inflammatory diseases. The company is evaluating its lead drug candidate, obefazimod, in Phase 3 clinical trials for the treatment of moderately to severely active ulcerative colitis in adults. ABIVAX Société Anonyme was incorporated in 2013 and is headquartered in Paris, France.Cardiol Therapeutics NASDAQ:CRDL$1.41 +0.03 (+2.17%) Closing price 06/6/2025 04:00 PM EasternExtended Trading$1.43 +0.02 (+1.42%) As of 06/6/2025 07:30 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.Cardiol Therapeutics Inc., a clinical-stage life sciences company, focuses on the research and development of anti-fibrotic and anti-inflammatory therapies for the treatment of heart diseases. Its lead product CardiolRx, which is in Phase II multi-national, randomized, double-blind, and placebo-controlled study to evaluate the efficacy and safety of CardiolRx in acute myocarditis, as well as for the treatment of recurrent pericarditis. The company is also developing CRD-38 injection for subcutaneous administration that is in preclinical development for the treatment of heart failure. It has a license agreement with Meros. The company was incorporated in 2017 and is headquartered in Oakville, Canada.Mereo BioPharma Group NASDAQ:MREO$2.74 +0.28 (+11.38%) Closing price 06/6/2025 04:00 PM EasternExtended Trading$2.78 +0.03 (+1.28%) As of 06/6/2025 07:10 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.Mereo BioPharma Group plc, a biopharmaceutical company, develops and commercializes therapeutics for the treatment of oncology and rare diseases in the United Kingdom, the United States, and internationally. It develops Etigilimab (MPH-313), an antibody T-cell immunoreceptor with Ig and ITIM domains, which is in Phase 1b clinical trial for the treatment of tumors. The company is also developing Navicixizumab (OMP-305B83), which has completed Phase 1b clinical trials for the treatment of the late line ovarian cancer; Acumapimod (BCT-197), a p38 MAP kinase inhibitor that is in Phase II clinical trials to treat acute exacerbations of chronic obstructive pulmonary disease; and Leflutrozole (BGS-649), an oral aromatase inhibitor for the treatment of hypogonadotropic hypogonadism which is in Phase 2 trials. In addition, it develops rare disease product candidates, including Setrusumab (BPS-804), an antibody for the treatment of osteogenesis imperfecta; and Alvelestat (MPH-966), an oral small molecule that is in Phase II clinical trial to treat Alpha-1 anti-trypsin deficiency. The company has a license agreement with Feng Biosciences for the development and commercialization of navicixizumab; license agreement with ReproNovo for the development and commercialization of leflutrozole; licensing agreement with AstraZeneca; and license agreement with Ultragenyx Pharmaceutical Inc. to develop and commercialize setrusumab. Mereo BioPharma Group plc was incorporated in 2015 and is headquartered in London, the United Kingdom.Prothena NASDAQ:PRTA$5.41 +0.35 (+6.92%) Closing price 06/6/2025 04:00 PM EasternExtended Trading$5.36 -0.05 (-0.85%) As of 06/6/2025 07:27 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.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. 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