Trending NewsTrending NewsNASDAQ:MRSN Mersana Therapeutics (MRSN) Stock Price, News & Analysis $7.42 +0.61 (+8.96%) Closing price 04:00 PM EasternExtended Trading$7.49 +0.07 (+1.00%) As of 07:50 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. 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$6.82▼$7.7250-Day Range$5.97▼$10.1852-Week Range$5.21▼$70.75Volume226,499 shsAverage Volume130,465 shsMarket Capitalization$37.03 millionP/E RatioN/ADividend YieldN/APrice Target$56.60Consensus 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™ Stocks82nd Percentile Overall ScoreMRSN MarketRank™: Mersana Therapeutics scored higher than 82% of companies evaluated by MarketBeat, and ranked 105th out of 936 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.5 / 5Analyst RatingBuy Consensus RatingMersana Therapeutics has received a consensus rating of Buy. The company's average rating score is 3.00, and is based on 6 buy ratings, no hold ratings, 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 -0.50, 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 -0.50, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings. Short Interest4.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted8.01% 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 3.3, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Mersana Therapeutics has recently decreased by 94.96%, 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 Shorted8.01% 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 3.3, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Mersana Therapeutics has recently decreased by 94.96%, indicating that investor sentiment is improving significantly. News and Social Media1.1 / 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 0.64 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 19 news articles for Mersana Therapeutics this week, compared to 2 articles on an average week.Search InterestOnly 6 people have searched for MRSN on MarketBeat in the last 30 days. This is a decrease of -14% 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 0% 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 price target adjusted to $36 at Truist after reverse splitAugust 14 at 2:12 PM | msn.comMersana Therapeutics, Inc. (NASDAQ:MRSN) Q2 2025 Earnings Call TranscriptAugust 14 at 9:18 AM | insidermonkey.comThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.August 14 at 2:00 AM | Paradigm Press (Ad)Mersana Therapeutics Reports Q2 2025 Financial ResultsAugust 14 at 9:12 AM | msn.comMersana Therapeutics, Inc. (NASDAQ:MRSN) Q2 2025 Earnings Call TranscriptAugust 14 at 9:12 AM | msn.comMersana Therapeutics reports Q2 EPS ($4.87), consensus ($4.25)August 13 at 2:57 PM | msn.comMersana Therapeutics, Inc. (MRSN) Q2 2025 Earnings Call TranscriptAugust 13 at 12:06 PM | seekingalpha.comMersana Therapeutics, Inc.: Mersana Therapeutics Provides Business Update and Announces Second Quarter 2025 Financial ResultsAugust 13 at 9:34 AM | finanznachrichten.deSee More Headlines MRSN Stock Analysis - Frequently Asked Questions How have MRSN shares performed this year? Mersana Therapeutics' stock was trading at $35.75 on January 1st, 2025. Since then, MRSN shares have decreased by 79.2% and is now trading at $7.42. How were Mersana Therapeutics' earnings last quarter? Mersana Therapeutics, Inc. (NASDAQ:MRSN) released its earnings results on Wednesday, August, 13th. The company reported ($4.08) earnings per share (EPS) for the quarter, missing the consensus estimate of ($3.75) by $0.33. The company had revenue of $3.06 million for the quarter, compared to the consensus estimate of $6.06 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 the morning of 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 closing bell 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 (IPO) 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 acted as the underwriters for the IPO and Wedbush PacGrow was co-manager. Who are Mersana Therapeutics' major shareholders? Top institutional shareholders of Mersana Therapeutics include Geode Capital Management LLC (21.03%), Cerity Partners LLC (6.43%), Marshall Wace LLP (4.55%) and Qube Research & Technologies Ltd (3.06%). Insiders that own company stock include Timothy B Lowinger, Anna Protopapas, Martin H Jr Huber, Brian Deschuytner, Alejandra Carvajal, Ashish Mandelia, Mohan Bala, Arvin Yang and Tushar Misra. View institutional ownership trends. 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 Earnings8/13/2025Today8/14/2025Fiscal 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 Founded2005Price Target and Rating Average Price Target for Mersana Therapeutics$56.60 High Price Target$125.00 Low Price Target$17.00 Potential Upside/Downside+662.8%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage6 Analysts Profitability EPS (Trailing Twelve Months)($14.75) 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 / Sales0.91 Cash FlowN/A Price / Cash FlowN/A Book Value($1.92) per share Price / Book-3.86Miscellaneous Outstanding Shares4,990,000Free Float4,337,000Market Cap$37.03 million OptionableOptionable Beta0.83 Social Links Analysts Agree—These Gold Picks Outshine the RestUnlock the timeless value of gold with our exclusive 2025 Gold Forecasting Report. 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