NASDAQ:MRSN Mersana Therapeutics (MRSN) Stock Price, News & Analysis $6.64 -0.20 (-2.86%) As of 11:01 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock About Mersana Therapeutics Stock (NASDAQ:MRSN) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get Mersana Therapeutics alerts:Sign Up Key Stats Today's Range$6.55▼$7.0050-Day Range$0.31▼$10.1852-Week Range$6.47▼$70.75Volume93,097 shsAverage Volume166,073 shsMarket Capitalization$826.92 millionP/E RatioN/ADividend YieldN/APrice Target$130.00Consensus RatingBuy Company Overview 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. Read More Mersana Therapeutics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks79th Percentile Overall ScoreMRSN MarketRank™: Mersana Therapeutics scored higher than 79% of companies evaluated by MarketBeat, and ranked 219th out of 939 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.4 / 5Analyst RatingModerate Buy Consensus RatingMersana Therapeutics has received a consensus rating of Moderate Buy. The company's average rating score is 2.83, and is based on 5 buy ratings, 1 hold rating, and no sell ratings.Amount of Analyst CoverageMersana Therapeutics has only been the subject of 4 research reports in the past 90 days.Read more about Mersana Therapeutics' stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthDecreasing Earnings GrowthEarnings for Mersana Therapeutics are expected to decrease in the coming year, from ($0.62) to ($0.67) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Mersana Therapeutics is -11.25, 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 Mersana Therapeutics is -11.25, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Read more about Mersana Therapeutics' valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted10.59% of the float of Mersana Therapeutics has been sold short.Short Interest Ratio / Days to CoverMersana Therapeutics has a short interest ratio ("days to cover") of 4.1.Change versus previous monthShort interest in Mersana Therapeutics has recently decreased by 23.82%, indicating that investor sentiment is improving significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldMersana Therapeutics does not currently pay a dividend.Dividend GrowthMersana Therapeutics does not have a long track record of dividend growth. Sustainability and ESG4.1 / 5Environmental Score-0.69 Percentage of Shares Shorted10.59% of the float of Mersana Therapeutics has been sold short.Short Interest Ratio / Days to CoverMersana Therapeutics has a short interest ratio ("days to cover") of 4.1.Change versus previous monthShort interest in Mersana Therapeutics has recently decreased by 23.82%, indicating that investor sentiment is improving significantly. News and Social Media1.6 / 5News Sentiment-0.06 News SentimentMersana Therapeutics has a news sentiment score of -0.06. 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 1.07 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 7 news articles for Mersana Therapeutics this week, compared to 2 articles on an average week.Search Interest9 people have searched for MRSN on MarketBeat in the last 30 days. This is an increase of 125% compared to the previous 30 days.MarketBeat FollowsOnly 3 people have added Mersana Therapeutics to their MarketBeat watchlist in the last 30 days. This is a decrease of -40% compared to the previous 30 days. Company Ownership2.5 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Mersana Therapeutics insiders have not sold or bought any company stock.Percentage Held by Insiders13.00% of the stock of Mersana Therapeutics is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions93.92% of the stock of Mersana Therapeutics is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Mersana Therapeutics' insider trading history. Receive MRSN Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Mersana Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address MRSN Stock News HeadlinesMersana Therapeutics trading halted, news pendingJuly 26 at 2:56 AM | msn.comMersana Therapeutics Presents Positive Phase 1 Data for Cancer Drug Emi-Le at ASCO 2025July 25, 2025 | msn.comTrump’s betrayal exposed Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.July 29 at 2:00 AM | Porter & Company (Ad)Mersana Therapeutics Announces 1-for-25 Reverse Stock SplitJuly 24, 2025 | globenewswire.comHead-To-Head Comparison: Mersana Therapeutics (NASDAQ:MRSN) vs. Lantern Pharma (NASDAQ:LTRN)July 24, 2025 | americanbankingnews.comMersana Therapeutics Settles Debt with Oxford FinanceJuly 3, 2025 | tipranks.comMersana Therapeutics Inc (MRSN) - Investing.comJuly 2, 2025 | investing.comMersana Therapeutics Reports Additional Positive Interim Phase 1 Clinical Data for Emi-Le in Oral Presentation at 2025 ASCO Annual MeetingJune 2, 2025 | globenewswire.comSee More Headlines MRSN Stock Analysis - Frequently Asked Questions How have MRSN shares performed this year? Mersana Therapeutics' stock was trading at $35.75 at the beginning of the year. Since then, MRSN stock has decreased by 81.4% and is now trading at $6.6350. How were Mersana Therapeutics' earnings last quarter? Mersana Therapeutics, Inc. (NASDAQ:MRSN) released its quarterly earnings data on Thursday, May, 15th. The company reported ($4.75) earnings per share for the quarter, beating the consensus estimate of ($5.25) by $0.50. The firm earned $2.75 million during the quarter, compared to the consensus estimate of $6.05 million. Mersana Therapeutics had a negative net margin of 217.63% and a negative trailing twelve-month return on equity of 990.16%. Read the conference call transcript. When did Mersana Therapeutics' stock split? Mersana Therapeutics's stock reverse split on Friday, July 25th 2025.The 1-25 reverse split was announced on Thursday, July 24th 2025. The number of shares owned by shareholders was adjusted after the market closes on Thursday, July 24th 2025. An investor that had 100 shares of stock prior to the reverse split would have 4 shares after the split. When did Mersana Therapeutics IPO? Mersana Therapeutics (MRSN) raised $75 million in an initial public offering on Wednesday, June 28th 2017. The company issued 5,000,000 shares at $14.00-$16.00 per share. J.P. Morgan, Cowen and Leerink Partners served as the underwriters for the IPO and Wedbush PacGrow was co-manager. How do I buy shares of Mersana Therapeutics? Shares of MRSN 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. What other stocks do shareholders of Mersana Therapeutics own? Based on aggregate information from My MarketBeat watchlists, some other companies that Mersana Therapeutics investors own include NVIDIA (NVDA), Meta Platforms (META), Broadcom (AVGO), Saia (SAIA), Rambus (RMBS), Advanced Micro Devices (AMD) and Arista Networks (ANET). Company Calendar Last Earnings5/15/2025Today7/29/2025Next Earnings (Estimated)8/12/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:MRSN CIK1442836 Webwww.mersana.com Phone(617) 498-0020FaxN/AEmployees150Year FoundedN/APrice Target and Rating Average Price Target for Mersana Therapeutics$130.00 High Price Target$250.00 Low Price Target$75.00 Potential Upside/Downside+1,855.2%Consensus RatingModerate Buy Rating Score (0-4)2.83 Research Coverage6 Analysts Profitability EPS (Trailing Twelve Months)($0.59) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$69.19 million Net Margins-217.63% Pretax Margin-216.41% Return on Equity-990.16% Return on Assets-48.87% Debt Debt-to-Equity RatioN/A Current Ratio1.83 Quick Ratio1.83 Sales & Book Value Annual Sales$40.50 million Price / Sales20.46 Cash FlowN/A Price / Cash FlowN/A Book Value($0.08) per share Price / Book-83.11Miscellaneous Outstanding Shares124,630,000Free Float108,429,000Market Cap$828.66 million OptionableOptionable Beta0.79 Social Links The Best High-Yield Dividend Stocks for 2025Discover the 10 Best High-Yield Dividend Stocks for 2025 and secure reliable income in uncertain markets. Download the report now to identify top dividend payers and avoid common yield traps.Get This Free Report This page (NASDAQ:MRSN) was last updated on 7/29/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what ...Priority Gold | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredI was wrong about TrumpI made a mistake. A mistake I feel very foolish about. After speaking with Donald Trump and some of his ...Porter & Company | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. 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