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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:MRSN NASDAQ:NKTX NASDAQ:OMER NASDAQ:PHAT NASDAQ:YMAB 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 VolumeMRSNMersana Therapeutics$7.21+0.6%$7.54$5.21▼$70.75$35.78M0.8763,284 shs16,992 shsNKTXNkarta$1.95-1.0%$2.09$1.31▼$5.83$139.92M0.76480,554 shs542,213 shsOMEROmeros$4.03-1.5%$4.00$2.95▼$13.60$278.35M2.37772,102 shs703,019 shsPHATPhathom Pharmaceuticals$10.98-4.4%$10.21$2.21▼$19.71$814.43M0.441.07 million shs895,754 shsYMABY-mAbs Therapeutics$8.60+0.1%$7.02$3.55▼$16.11$391.23M0.54723,783 shs760,600 shs5G Stocks: The Path Forward is ProfitableEnter your email address and we'll send you MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceMRSNMersana Therapeutics+0.42%+1.85%+0.14%-18.85%-86.41%NKTXNkarta0.00%-7.08%-15.45%+8.84%-65.50%OMEROmeros-1.45%-2.85%-7.26%+27.41%+3.81%PHATPhathom Pharmaceuticals-3.04%-7.64%+12.11%+9.33%-37.27%YMABY-mAbs Therapeutics+0.23%+0.23%+1.06%+79.38%-37.34%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeMRSNMersana Therapeutics$7.21+0.6%$7.54$5.21▼$70.75$35.78M0.8763,284 shs16,992 shsNKTXNkarta$1.95-1.0%$2.09$1.31▼$5.83$139.92M0.76480,554 shs542,213 shsOMEROmeros$4.03-1.5%$4.00$2.95▼$13.60$278.35M2.37772,102 shs703,019 shsPHATPhathom Pharmaceuticals$10.98-4.4%$10.21$2.21▼$19.71$814.43M0.441.07 million shs895,754 shsYMABY-mAbs Therapeutics$8.60+0.1%$7.02$3.55▼$16.11$391.23M0.54723,783 shs760,600 shs5G Stocks: The Path Forward is ProfitableEnter your email address and we'll send you MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceMRSNMersana Therapeutics+0.42%+1.85%+0.14%-18.85%-86.41%NKTXNkarta0.00%-7.08%-15.45%+8.84%-65.50%OMEROmeros-1.45%-2.85%-7.26%+27.41%+3.81%PHATPhathom Pharmaceuticals-3.04%-7.64%+12.11%+9.33%-37.27%YMABY-mAbs Therapeutics+0.23%+0.23%+1.06%+79.38%-37.34%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceMRSNMersana Therapeutics 3.00Buy$56.60685.02% UpsideNKTXNkarta 3.00Buy$13.60597.44% UpsideOMEROmeros 2.83Moderate Buy$18.00346.65% UpsidePHATPhathom Pharmaceuticals 3.00Buy$17.5059.38% UpsideYMABY-mAbs Therapeutics 1.80Reduce$9.6211.89% UpsideCurrent Analyst Ratings BreakdownLatest MRSN, NKTX, YMAB, PHAT, and OMER Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails9/3/2025OMEROmerosD. Boral CapitalSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy$36.008/15/2025OMEROmerosNeedham & Company LLCSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingHold8/15/2025OMEROmerosD. Boral CapitalSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy$36.008/14/2025MRSNMersana TherapeuticsTruist FinancialSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetBuy$250.00 ➝ $36.008/14/2025MRSNMersana TherapeuticsGuggenheimSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetBuy$125.00 ➝ $30.008/14/2025NKTXNkartaStifel NicolausSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetBuy$14.00 ➝ $12.008/13/2025MRSNMersana TherapeuticsBTIG ResearchSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy$17.008/13/2025NKTXNkartaNeedham & Company LLCSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy$10.008/6/2025YMABY-mAbs TherapeuticsHC WainwrightSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy ➝ Neutral$11.00 ➝ $8.608/5/2025YMABY-mAbs TherapeuticsMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingSet Price Target$8.608/5/2025YMABY-mAbs TherapeuticsCanaccord Genuity GroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeStrong-Buy ➝ Hold$26.00 ➝ $8.60(Data available from 9/16/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookMRSNMersana Therapeutics$40.50M0.89N/AN/A($1.92) per share-3.76NKTXNkartaN/AN/AN/AN/A$5.78 per shareN/AOMEROmerosN/AN/AN/AN/A($3.15) per shareN/APHATPhathom Pharmaceuticals$55.25M14.10N/AN/A($3.71) per share-2.96YMABY-mAbs Therapeutics$87.68M4.46N/AN/A$2.05 per share4.20Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateMRSNMersana Therapeutics-$69.19M-$14.62N/AN/AN/A-212.94%-990.16%-54.85%11/12/2025 (Estimated)NKTXNkarta-$108.79M-$1.480.00N/AN/AN/A-27.74%-22.38%11/6/2025 (Estimated)OMEROmeros-$156.82M-$2.11N/AN/AN/AN/AN/A-55.49%11/12/2025 (Estimated)PHATPhathom Pharmaceuticals-$334.33M-$4.730.00N/AN/A-289.51%N/A-90.40%11/6/2025 (Estimated)YMABY-mAbs Therapeutics-$29.67M-$0.500.00N/AN/A-26.03%-24.60%-18.89%11/14/2025 (Estimated)Latest MRSN, NKTX, YMAB, PHAT, and OMER EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails8/14/2025Q2 2025OMEROmeros-$0.55-$0.53+$0.02-$0.43$0.31 million$28.60 million8/13/2025Q2 2025MRSNMersana Therapeutics-$3.75-$4.08-$0.33-$4.87$6.06 million$3.06 million8/12/2025Q2 2025NKTXNkarta-$0.37-$0.31+$0.06-$0.31N/AN/A8/8/2025Q2 2025YMABY-mAbs Therapeutics-$0.27-$0.07+$0.20-$0.07$18.40 million$19.52 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthMRSNMersana TherapeuticsN/AN/AN/AN/AN/ANKTXNkartaN/AN/AN/AN/AN/AOMEROmerosN/AN/AN/AN/AN/APHATPhathom PharmaceuticalsN/AN/AN/AN/AN/AYMABY-mAbs TherapeuticsN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioMRSNMersana TherapeuticsN/A1.351.35NKTXNkartaN/A15.6715.67OMEROmerosN/A0.810.81PHATPhathom PharmaceuticalsN/A2.382.35YMABY-mAbs TherapeuticsN/A4.003.58Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipMRSNMersana Therapeutics93.92%NKTXNkarta80.54%OMEROmeros48.79%PHATPhathom Pharmaceuticals99.01%YMABY-mAbs Therapeutics70.85%Insider OwnershipCompanyInsider OwnershipMRSNMersana Therapeutics13.00%NKTXNkarta8.40%OMEROmeros12.90%PHATPhathom Pharmaceuticals24.10%YMABY-mAbs Therapeutics19.70%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableMRSNMersana Therapeutics1504.99 million4.34 millionOptionableNKTXNkarta14071.03 million65.06 millionOptionableOMEROmeros21068.06 million59.28 millionOptionablePHATPhathom Pharmaceuticals11070.94 million53.85 millionOptionableYMABY-mAbs Therapeutics15045.44 million36.49 millionOptionableMRSN, NKTX, YMAB, PHAT, and OMER HeadlinesRecent News About These CompaniesY-Mabs Therapeutics Completes Merger with Perseus BidCoSeptember 16 at 9:30 AM | tipranks.comJacobs Levy Equity Management Inc. Acquires 87,830 Shares of Y-mAbs Therapeutics, Inc. $YMABSeptember 14 at 3:26 AM | marketbeat.comY-mAbs Therapeutics, Inc. $YMAB Shares Bought by Cubist Systematic Strategies LLCSeptember 12, 2025 | marketbeat.comY-mAbs Therapeutics, Inc. (NASDAQ:YMAB) Short Interest UpdateSeptember 9, 2025 | marketbeat.comY-Mabs Therapeutics’ Phase 2 Trial: A Potential Breakthrough for Neuroblastoma TreatmentSeptember 7, 2025 | msn.com112,483 Shares in Y-mAbs Therapeutics, Inc. $YMAB Acquired by Nuveen LLCSeptember 7, 2025 | marketbeat.comY-mAbs Therapeutics, Inc. $YMAB Shares Bought by Wellington Management Group LLPSeptember 2, 2025 | marketbeat.comY-mAbs Therapeutics, Inc. (YMAB) Now Trades Above Golden Cross: Time to Buy?September 1, 2025 | zacks.comY-mAbs Therapeutics, Inc. $YMAB Stake Lifted by Acorn Capital Advisors LLCSeptember 1, 2025 | marketbeat.comStonepine Capital Management LLC Acquires New Stake in Y-mAbs Therapeutics, Inc. $YMABAugust 26, 2025 | marketbeat.comY-mAbs Therapeutics, Inc. (NASDAQ:YMAB) Receives Consensus Rating of "Reduce" from AnalystsAugust 25, 2025 | marketbeat.comY-MABS THERAPEUTICS INVESTOR ALERT BY THE FORMER ATTORNEY GENERAL OF LOUISIANA: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Y-mAbs Therapeutics, Inc. - YMABAugust 19, 2025 | globenewswire.comAcquisition Deal Triggers Weekly Surge for Y-mAbs Therapeutics StockAugust 13, 2025 | insidermonkey.comA Look Ahead: Y-mAbs Therapeutics's Earnings ForecastAugust 9, 2025 | benzinga.comY-mAbs (YMAB) Q2 Revenue Falls 14%August 9, 2025 | aol.comAY-mAbs Therapeutics, Inc. (YMAB) Reports Q2 Loss, Tops Revenue EstimatesAugust 8, 2025 | zacks.comShareholder Alert: The Ademi Firm Investigates Whether Y-mAbs Therapeutics Inc. is Obtaining a Fair Price for its Public ShareholdersAugust 8, 2025 | businesswire.comY-mAbs Reports Second Quarter 2025 Financial Results and Recent Corporate DevelopmentsAugust 8, 2025 | globenewswire.com$HAREHOLDER ALERT: The M&A Class Action Firm Announces An Investigation of Y-mAbs Therapeutics, Inc. (NASDAQ: YMAB)August 7, 2025 | prnewswire.comY-MABS THERAPEUTICS INVESTOR ALERT by the Former Attorney General of Louisiana: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Y-mAbs Therapeutics, Inc. - YMABAugust 7, 2025 | businesswire.comY-mAbs Therapeutics, Inc. to Report Q2 2025 Financial Results on August 8, 2025, forgoing Earnings CallAugust 7, 2025 | quiverquant.comQNew MarketBeat Followers Over TimeMedia Sentiment Over TimeMRSN, NKTX, YMAB, PHAT, and OMER Company DescriptionsMersana Therapeutics NASDAQ:MRSN$7.21 +0.04 (+0.56%) Closing price 04:00 PM EasternExtended Trading$7.28 +0.07 (+0.97%) As of 06:28 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.Mersana Therapeutics, Inc., a clinical stage biopharmaceutical company, develops antibody drug conjugates (ADC) for cancer patients with unmet needs. The company develops XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate; and XMT-2056, an immunosynthen ADC. It has research and development collaborations with Janssen Biotech, Inc., Ares Trading S.A., Merck KGaA, and Asana BioSciences, LLC for the development of ADC product candidates. The company was formerly known as Nanopharma Corp. and changed its name to Mersana Therapeutics, Inc. in November 2005. Mersana Therapeutics, Inc. was incorporated in 2001 and is headquartered in Cambridge, Massachusetts.Nkarta NASDAQ:NKTX$1.95 -0.02 (-1.02%) Closing price 04:00 PM EasternExtended Trading$1.98 +0.03 (+1.74%) As of 07:11 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.Nkarta, Inc., a clinical-stage biopharmaceutical company, develops and commercializes natural killer cell therapies for cancer and autoimmune disease treatment. The company's lead product candidate is NKX019, a chimeric antigen receptor-natural killer (CAR NK) targeting the CD19 antigen that is in Phase 1 clinical trial for the treatment of relapsed/refractory (r/r) non-hodgkin lymphoma, as well as for lupus nephritis. It also develops NKX101, a CAR NK product candidate targeting cells that display NKG2D ligands, which is in Phase I clinical trial for the treatment of r/r acute myeloid leukemia or higher risk myelodysplastic syndromes, as well as for solid tumors. In addition, the company develops NKX070, targeting the CD70 tumor antigen to treat solid and liquid tumors; and NK+T cell therapy for use in the treatment of oncology, autoimmune disease, or infectious disease. It has a research collaboration agreement with CRISPR Therapeutics AG. Nkarta, Inc. was incorporated in 2015 and is based in South San Francisco, California.Omeros NASDAQ:OMER$4.03 -0.06 (-1.47%) Closing price 04:00 PM EasternExtended Trading$4.14 +0.11 (+2.70%) As of 07:56 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.Omeros Corporation, a clinical-stage biopharmaceutical company, discovers, develops, and commercializes small-molecule and protein therapeutics, and orphan indications targeting immunologic diseases, including complement-mediated diseases, cancers, and addictive and compulsive disorders. The company's products under development include Narsoplimab (OMS721/MASP-2) that has completed pivotal trial for hematopoietic stem-cell transplant-associated thrombotic microangiopathy (TA-TMA); that is in Phase III clinical trial for the treatment of immunoglobulin A nephropathy (IgAN); and Phase II clinical trial to treat COVID-19. It also develops OMS1029 that is in phase I clinical trials for long-acting second-generation antibody targeting lectin pathway disorders; OMS906 that has completed phase II clinical trials for Paroxysmal nocturnal hemoglobinuria, complement 3 glomerulopathy, and other alternative pathway disorders; and OMS527 that is in phase I clinical trials for addictions and compulsive disorders, and movement disorders. In addition, the company's products under preclinical development comprise MASP-2, a pro-inflammatory protein target for the treatment of lectin pathway disorders; MASP-3 small-molecule inhibitors for alternative pathway disorders; and Adoptive T-Cell and Chimeric Antigen Receptor (CAR) T-Cell Therapies and Immunomodulators/Immunotoxins/Cancer Vaccines for the treatment of various cancers. Omeros Corporation was incorporated in 1994 and is headquartered in Seattle, Washington.Phathom Pharmaceuticals NASDAQ:PHAT$10.98 -0.50 (-4.36%) Closing price 04:00 PM EasternExtended Trading$10.84 -0.14 (-1.23%) As of 07:42 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.Phathom Pharmaceuticals, Inc., biopharmaceutical company, focuses on developing and commercializing treatments for gastrointestinal diseases. The company has the rights in the United States, Europe, and Canada for an investigational potassium-competitive acid blocker (P-CAB) that blocks acid secretion in the stomach. It is also developing vonoprazan for the treatment of erosive gastroesophageal reflux disease; and in combination with antibiotics for the treatment of Helicobacter pylori infection. The company was incorporated in 2018 and is headquartered in Florham Park, New Jersey.Y-mAbs Therapeutics NASDAQ:YMAB$8.60 +0.01 (+0.12%) Closing price 09/15/2025 04:22 PM EasternExtended Trading$8.60 0.00 (0.00%) As of 09/15/2025 04:22 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.Y-mAbs Therapeutics, Inc., a commercial-stage biopharmaceutical company, focuses on the development and commercialization of antibody based therapeutic products for the treatment of cancer in the United States and internationally. It offers DANYELZA, a monoclonal antibody in combination with granulocyte-macrophage colony-stimulating factor for the treatment of pediatric patients with relapsed or refractory high-risk neuroblastoma in the bone or bone marrow. The company is also developing DANYELZA for the treatment of patients with second-line relapsed osteosarcoma and is in Phase II clinical study; GD2-SADA, which is in Phase I clinical trial for the treatment of GD2 positive solid tumor; and Omburtamab, a murine monoclonal antibody for the treatment of central nervous system/leptomeningeal metastases from neuroblastoma, as well as SADA PRIT technology platform. In addition, it is engages in the developing of CD38-SADA and GD2-GD3 Vaccine. The company has a license agreement with Memorial Sloan Kettering Cancer Center and Massachusetts Institute of Technology to develop and commercialize licensed products. Y-mAbs Therapeutics, Inc. was incorporated in 2015 and is headquartered in New York, New York. 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