Altimmune (ALT) News Today $3.54 +0.01 (+0.28%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$3.54 0.00 (-0.14%) As of 08/22/2025 07:59 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 Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Why Is Altimmune Up Today?Toggle Visibility of Why Is Altimmune Up Today?Altimmune, Inc. (NASDAQ: ALT) saw its stock hold near recent lows as investors weighed positive regulatory and analyst developments against a barrage of securities class-action notices from multiple law firms. Below is a summary of the key headlines moving the stock today: Positive Sentiment: US FDA grants fast track designation to Altimmune’s pemvidutide for alcohol use disorderUS FDA grants fast track designation to Altimmune’s pemvidutide to treat alcohol use disorder Positive Sentiment: Seven analysts assign Altimmune an average “Moderate Buy” rating, reflecting cautious optimism on pipeline progressAltimmune, Inc. (NASDAQ:ALT) Given Average Recommendation of "Moderate Buy" by Analysts Negative Sentiment: Rosen Law Firm urges investors who bought ALT between August 10, 2023 and June 25, 2025 to secure counsel before the October 6, 2025 lead plaintiff deadlineROSEN, A GLOBAL INVESTOR RIGHTS LAW FIRM, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action Negative Sentiment: Pomerantz LLP reminds investors with losses in ALT shares to contact counsel regarding newly filed securities class actionINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Altimmune, Inc. of Class Action Lawsuit and Upcoming Deadlines Negative Sentiment: Levi & Korsinsky notifies ALT investors of class action and October 6, 2025 deadline for lead plaintiff applicationsOctober 6, 2025 Deadline: Contact Levi & Korsinsky to Join Class Action Suit Against ALT Negative Sentiment: Rosen Law Firm issues similar GlobeNewswire notice urging ALT holders to secure counsel before the October deadlineROSEN, TRUSTED INVESTOR COUNSEL, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action Negative Sentiment: The Gross Law Firm reminds shareholders of ALT of a pending securities suit and October 6 deadline to discuss rightsAltimmune, Inc. Sued for Securities Law Violations - Contact The Gross Law Firm Before October 6, 2025 to Discuss Your Rights Negative Sentiment: Pomerantz repeats its GlobeNewswire alert on the class action suit and upcoming deadlines for ALT investorsINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Altimmune, Inc. of Class Action Lawsuit and Upcoming Deadlines Negative Sentiment: Berger Montague notifies purchasers of ALT securities of class action and the October deadline for lead plaintiff motionsINVESTOR REMINDER: Berger Montague Notifies Altimmune, Inc. Investors of a Class Action Lawsuit and Deadline Negative Sentiment: Faruqi & Faruqi investigates claims on behalf of ALT investors with losses exceeding $75,000 and highlights October 6 deadlineSHAREHOLDER ACTION REMINDER: Faruqi & Faruqi, LLP Investigates Claims on Behalf of Investors of Altimmune Negative Sentiment: The Gross Law Firm issues a second PR notice urging shareholders to contact counsel before the October 6, 2025 class action deadlineContact The Gross Law Firm by October 6, 2025 Deadline to Join Class Action Against Altimmune, Inc.(ALT) Posted 1+ days agoAI Generated. May Contain Errors. ALT Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 September 2022 Time Period ROSEN, GLOBAL INVESTOR COUNSEL, Encourages Altimmune, Inc. ...4 hours ago | gurufocus.comROSEN, GLOBAL INVESTOR COUNSEL, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ALT5 hours ago | globenewswire.comROSEN, TOP RANKED INVESTOR COUNSEL, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ALTAugust 23 at 4:30 PM | markets.businessinsider.comBrokerages Set Altimmune, Inc. (NASDAQ:ALT) PT at $17.40August 23 at 3:09 AM | americanbankingnews.comClass Action Filed Against Altimmune, Inc. (ALT) - October 6, 2025 Deadline to Join – Contact Levi & KorsinskyAugust 22 at 4:40 PM | globenewswire.comROSEN, A GLOBAL INVESTOR RIGHTS LAW FIRM, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ALTAugust 22 at 3:10 PM | markets.businessinsider.comINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Altimmune, Inc. of Class Action Lawsuit and Upcoming Deadlines - ALTAugust 22 at 10:00 AM | prnewswire.comOctober 6, 2025 Deadline: Contact Levi & Korsinsky to Join Class Action Suit Against ALTAugust 22 at 8:45 AM | prnewswire.comROSEN, TRUSTED INVESTOR COUNSEL, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ALTAugust 21 at 7:42 PM | globenewswire.comAltimmune, Inc. Sued for Securities Law Violations - Contact The Gross Law Firm Before October 6, 2025 to Discuss Your Rights – ALTAugust 21 at 3:23 PM | globenewswire.comINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Altimmune, Inc. of Class Action Lawsuit and Upcoming Deadlines - ALTAugust 21 at 11:36 AM | globenewswire.comINVESTOR REMINDER: Berger Montague Notifies Altimmune, Inc. (NASDAQ: ALT) Investors of a Class Action Lawsuit and DeadlineAugust 21 at 11:06 AM | prnewswire.comSHAREHOLDER ACTION REMINDER: Faruqi & Faruqi, LLP Investigates Claims on Behalf of Investors of AltimmuneAugust 21 at 11:05 AM | prnewswire.comContact The Gross Law Firm by October 6, 2025 Deadline to Join Class Action Against Altimmune, Inc.(ALT)August 21 at 8:45 AM | prnewswire.comAltimmune, Inc. (NASDAQ:ALT) Given Average Recommendation of "Moderate Buy" by AnalystsAugust 21 at 2:22 AM | marketbeat.comALT STOCK: Robbins LLP Reminds ALT Stockholders of the Opportunity to Lead the Class Action Lawsuit Against Altimmune, Inc.August 20, 2025 | prnewswire.comALT INVESTOR ALERT: Bronstein, Gewirtz & Grossman LLC Announces that Altimmune, Inc. Investors with Substantial Losses Have Opportunity to Lead Class Action LawsuitAugust 20, 2025 | globenewswire.comRecover Investment Losses: Levi & Korsinsky Files Class Action Against Altimmune, Inc. (ALT)August 19, 2025 | theglobeandmail.comAltimmune, Inc. Sued for Securities Law Violations - Contact Levi & Korsinsky Before October 6, 2025 to Discuss Your Rights – ALTAugust 19, 2025 | globenewswire.comAltimmune Above Water on FDA NodAugust 19, 2025 | baystreet.caAltimmune, Inc: Altimmune Announces FDA Fast Track Designation for Pemvidutide in Alcohol Use Disorder (AUD)August 19, 2025 | finanznachrichten.deAltimmune wins FDA fast track status for alcohol use disorder therapyAugust 19, 2025 | msn.comShareholders that lost money on Altimmune, Inc. ...August 19, 2025 | gurufocus.comShareholders that lost money on Altimmune, Inc.(ALT) Urged to Join Class Action - Contact Levi & Korsinsky to Learn MoreAugust 19, 2025 | prnewswire.comAltimmune's Pemvidutide Receives FDA Fast Track Designation for Alcohol Use Disorder TreatmentAugust 19, 2025 | quiverquant.comQAltimmune Announces FDA Fast Track Designation for Pemvidutide in Alcohol Use Disorder (AUD)August 19, 2025 | globenewswire.comRosen Law Firm Urges Altimmune, Inc. (NASDAQ: ALT) Stockholders to Contact the Firm for Information About Their RightsAugust 18, 2025 | prnewswire.comALT LAWSUIT ALERT: The Gross Law Firm Notifies Altimmune, Inc. ...August 18, 2025 | gurufocus.comThe Gross Law Firm Reminds Shareholders of a Lead Plaintiff Deadline of October 6, 2025 in Altimmune, Inc. Lawsuit - ALTAugust 18, 2025 | prnewswire.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Altimmune, Inc. - ALTAugust 17, 2025 | globenewswire.comEquities Analysts Issue Forecasts for Altimmune Q3 EarningsAugust 17, 2025 | marketbeat.comHC Wainwright Has Bullish Forecast for Altimmune Q3 EarningsAugust 17, 2025 | marketbeat.comWilliam Blair Brokers Raise Earnings Estimates for AltimmuneAugust 17, 2025 | marketbeat.comB. Riley Issues Positive Forecast for Altimmune EarningsAugust 17, 2025 | americanbankingnews.comHC Wainwright Issues Positive Outlook for Altimmune EarningsAugust 17, 2025 | americanbankingnews.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Altimmune, Inc. ...August 16, 2025 | gurufocus.comROSEN, TRUSTED INVESTOR COUNSEL, Encourages Altimmune, Inc. ...August 16, 2025 | gurufocus.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Altimmune, Inc. - ALTAugust 16, 2025 | prnewswire.comROSEN, TRUSTED INVESTOR COUNSEL, Encourages Altimmune, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ALTAugust 16, 2025 | globenewswire.comWhat is William Blair's Estimate for Altimmune Q3 Earnings?August 16, 2025 | americanbankingnews.comLevi & Korsinsky Announces the Filing of a Securities Class Action on Behalf of Altimmune, Inc. (ALT) ShareholdersAugust 16, 2025 | theglobeandmail.comAltimmune (NASDAQ:ALT) Earns "Buy" Rating from HC WainwrightAugust 15, 2025 | marketbeat.comUBS Group Has Lowered Expectations for Altimmune (NASDAQ:ALT) Stock PriceAugust 15, 2025 | marketbeat.comBerger Montague PC Investigates Securities Claims Against Altimmune, Inc. (NASDAQ: ALT)August 15, 2025 | prnewswire.comFaruqi & Faruqi Reminds Altimmune Investors of the Pending Class Action Lawsuit with a Lead Plaintiff Deadline of October 6, 2025 - ALTAugust 15, 2025 | prnewswire.comAltimmune, Inc. Securities Fraud Class Action Lawsuit Pending: Contact Levi & Korsinsky Before October 6, 2025 to Discuss Your Rights - ALTAugust 15, 2025 | prnewswire.comB. Riley Lowers Altimmune (NASDAQ:ALT) Price Target to $18.00August 15, 2025 | marketbeat.comAltimmune First Half 2025 Earnings: Beats ExpectationsAugust 15, 2025 | finance.yahoo.comAltimmune (NASDAQ:ALT) Given New $18.00 Price Target at B. RileyAugust 15, 2025 | americanbankingnews.comUBS Group Issues Pessimistic Forecast for Altimmune (NASDAQ:ALT) Stock PriceAugust 15, 2025 | americanbankingnews.com Get Altimmune News Delivered to You Automatically Sign up to receive the latest news and ratings for ALT and its competitors with MarketBeat's FREE daily newsletter. Email Address ALT Media Mentions By Week ALT Media Sentiment Learn about the media sentiment score. Each headline receives a score ranging from 2 (good news) to -2 (bad news). Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. ALT News Sentiment▼0.440.69▲Average Medical News Sentiment ALT News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. ALT Articles This Week▼297▲ALT Articles Average Week Get Altimmune News Delivered to You Automatically Sign up to receive the latest news and ratings for ALT and its competitors with MarketBeat's FREE daily newsletter. Email Address Related Companies and Tools Related Companies Tilray Brands News CureVac News Collegium Pharmaceutical News Calliditas Therapeutics AB (publ) News Xeris Biopharma News Enliven Therapeutics News Pharvaris News Intellia Therapeutics News Structure Therapeutics News Arcus Biosciences News Headlines Tools Trending Media MentionsHigh Media Sentiment StocksLive News FeedMarketBeat OriginalsStock Ideas This page (NASDAQ:ALT) was last updated on 8/24/2025 by MarketBeat.com Staff From Our PartnersEveryone’s watching Nvidia right now. 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