Mersana Therapeutics (MRSN) Options Chain & Prices $7.21 +0.04 (+0.56%) Closing price 09/16/2025 04:00 PM EasternExtended Trading$7.28 +0.07 (+0.97%) As of 09/16/2025 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. 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 Compugen Options Chain MacroGenics Options Chain Zentalis Pharmaceuticals Options Chain Protalix BioTherapeutics Options Chain Skye Bioscience Options Chain Protara Therapeutics Options Chain Spero Therapeutics Options Chain Corbus Pharmaceuticals Options Chain Pyxis Oncology Options Chain Fate Therapeutics Options Chain Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:MRSN) was last updated on 9/17/2025 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 | SponsoredWhy 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 | SponsoredTrump's Law S.1582: $21T Dollar Revolution ComingDo you have money in any of these banks? 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