Mersana Therapeutics (MRSN) Options Chain & Prices $6.82 -0.30 (-4.21%) Closing price 04:00 PM EasternExtended Trading$6.78 -0.04 (-0.59%) 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 Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock MRSN Put and Call Options List 2/20/2026 1/16/2026 11/21/2025 9/19/2025 Options Date Put and Call Options Put Options Call Options Options Type All In The Money Out of The Money Moneyness With Volume Without Volume All Volume Strike Price Min Strike Price Max Export to Excel ExpiresStrike PriceClose PricePut/CallVolumeVolume AskVolume BidOpen InterestImplied VolatilityDeltaTradesEnd-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Cardiff Oncology Options Chain Theratechnologies Options Chain Cabaletta Bio Options Chain Milestone Pharmaceuticals Options Chain Zentalis Pharmaceuticals Options Chain Coherus Oncology Options Chain Forte Biosciences Options Chain Fate Therapeutics Options Chain Scilex Options Chain Zura Bio Options Chain Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:MRSN) was last updated on 9/5/2025 by MarketBeat.com Staff From Our PartnersWhy Trump’s “Smart Dollar” could rewrite the rulesMUST SEE: Donald Trump's Radical Overhaul of the U.S. Dollar Congress just approved President Trump's lates...Stansberry Research | Sponsored“Sell Nvidia before earnings”Eric Fry just went live with one of his most controversial calls yet: “Sell Nvidia.” While Wall Street has bee...InvestorPlace | SponsoredHow “Trump’s New Dollar” Could Impact Your WealthPresident Trump just signed a game-changing law… That could soon upgrade the U.S. dollar in your checking a...Brownstone Research | SponsoredForget Tesla — This Tiny AI Stock Is Musk’s Real PlayWhile Wall Street focused on Tesla’s earnings, Elon Musk was quietly building a supercomputer so powerful it c...Behind the Markets | SponsoredRetire Comfortably with These New Monthly Income ETFs?Too many retirees lie awake at night, worried their savings won’t last. 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