Altimmune (ALT) Options Chain & Prices $3.96 +0.18 (+4.76%) Closing price 04:00 PM EasternExtended Trading$3.96 0.00 (-0.13%) As of 07:57 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 EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock ALT Put and Call Options List 1/21/2028 1/15/2027 3/20/2026 1/16/2026 12/19/2025 11/21/2025 10/31/2025 10/24/2025 10/17/2025 10/10/2025 10/3/2025 9/26/2025 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 VolatilityDeltaTrades9/26/2025$3.50$0.026Put93 - 75103(-1)105.20% (+7.89%)-0.115627149/26/2025$3.50$0.499Call780249493469(+5)105.20% (+4.29%)0.885307309/26/2025$4.00$0.142Put56353105(+16)76.89% (-16.19%)-0.516469149/26/2025$4.00$0.115Call672503501879(+617)76.89% (-16.19%)0.483322939/26/2025$4.50$0.559Put11 - 3(+0)107.18% (-18.43%)-0.85054719/26/2025$4.50$0.032Call1157861963(+8)126.00% (+0.34%)0.14827522End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies NTLA Options RCUS Options TRML Options CVAC Options DNTH Options CALT Options ETNB Options XERS Options GPCR Options WVE Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:ALT) was last updated on 9/22/2025 by MarketBeat.com Staff From Our PartnersHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. Now, the man who called Nvi...The Oxford Club | SponsoredPrepare for the “Mar-a-Lago Accord” Money ShockWhy Are Wall Street Insiders Moving Their Money to This ONE Asset? 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