NASDAQ:ALT Altimmune (ALT) Stock Price, News & Analysis $3.41 +0.14 (+4.28%) Closing price 04:00 PM EasternExtended Trading$3.38 -0.03 (-0.79%) As of 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 Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC FilingsShort Interest About Altimmune Stock (NASDAQ:ALT) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Altimmune alerts:Sign Up Key Stats Today's Range$3.25▼$3.4150-Day Range$2.77▼$3.4252-Week Range$2.56▼$6.44Volume3.98 million shsAverage Volume3.60 million shsMarket Capitalization$663.31 millionP/E RatioN/ADividend YieldN/APrice Target$14.33Consensus RatingModerate Buy Company Overview Altimmune, Inc. is a clinical-stage biotechnology company focused on developing treatments for obesity and liver diseases. The company’s lead product candidate is pemvidutide, a dual GLP-1/glucagon receptor agonist being studied for chronic weight management and metabolic dysfunction-associated steatohepatitis (MASH), a form of liver disease associated with metabolic disorders. Altimmune’s research programs are designed to address diseases with significant unmet medical needs, including obesity-related complications and conditions involving liver inflammation and fibrosis. Pemvidutide is administered by injection and is being evaluated in clinical trials to assess its effects on body weight and liver health. The company’s pipeline and development priorities may change as clinical data and regulatory discussions progress. Altimmune was formerly known as Vaxin, Inc. and has also pursued vaccine and immunotherapy programs, including investigational candidates for hepatitis B and COVID-19. The company is headquartered in Gaithersburg, Maryland, and its shares trade on the Nasdaq under the symbol ALT. Altimmune is led by President and Chief Executive Officer Vipin K. Garg.AI Generated. May Contain Errors. Read More Altimmune Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks40th Percentile Overall ScoreALT MarketRank™: Altimmune scored higher than 40% of companies evaluated by MarketBeat, and ranked 625th out of 898 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.7 / 5Analyst RatingModerate Buy Consensus RatingAltimmune has received a consensus rating of Moderate Buy. The company's average rating score is 2.67, and is based on no strong buy ratings, 7 buy ratings, 1 hold rating, and 1 sell rating.Upside PotentialAltimmune has a consensus price target of $14.33, representing about 320.3% upside from its current price of $3.41.Amount of Analyst CoverageAltimmune has only been the subject of 2 research reports in the past 90 days.Read more about Altimmune's stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Altimmune are expected to grow in the coming year, from ($0.58) to ($0.54) per share.Price to Book Value per Share RatioAltimmune has a P/B Ratio of 1.71. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities.Read more about Altimmune's valuation and earnings. Short Interest1.0 / 5Short Interest LevelBearish Percentage of Shares Shorted25.97% of the float of Altimmune has been sold short.Short Interest Ratio / Days to CoverAltimmune has a short interest ratio ("days to cover") of 11.84, which indicates bearish sentiment.Change versus previous monthShort interest in Altimmune has recently decreased by 2.47%, indicating that investor sentiment is improving. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAltimmune does not currently pay a dividend.Dividend GrowthAltimmune does not have a long track record of dividend growth. News and Social Media1.7 / 5News Sentiment-0.36 News SentimentAltimmune has a news sentiment score of -0.36. 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 0.51 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 2 news articles for Altimmune this week, compared to 6 articles on an average week.Search InterestOnly 11 people have searched for ALT on MarketBeat in the last 30 days. This is a decrease of -45% compared to the previous 30 days.MarketBeat Follows7 people have added Altimmune to their MarketBeat watchlist in the last 30 days. This is an increase of 17% compared to the previous 30 days. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Altimmune insiders have not sold or bought any company stock.Percentage Held by Insiders1.60% of the stock of Altimmune is held by insiders.Percentage Held by Institutions78.05% of the stock of Altimmune is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Altimmune's insider trading history. Receive ALT Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Altimmune and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. ALT Stock News HeadlinesReviewing Altimmune (NASDAQ:ALT) & X4 Pharmaceuticals (NASDAQ:XFOR)September 22 at 5:29 AM | americanbankingnews.comDenali Therapeutics (NASDAQ:DNLI) & Altimmune (NASDAQ:ALT) Critical ReviewSeptember 18, 2026 | americanbankingnews.comElon Musk’s Hushed FCC Filing. Sept 25th.Elon Musk quietly filed a document with the federal government tied to artificial intelligence, one of the largest markets in the world. James Altucher, who previously flagged Nvidia in 2008 and Bitcoin in 2013, says the filing could rival Tesla, SpaceX and xAI combined. Few investors know this filing exists, but that is expected to change quickly.September 22 at 1:00 AM | Paradigm Press (Ad)Altimmune’s (ALT) Three Liver Trials Move Forward At OnceSeptember 8, 2026 | finance.yahoo.comAltimmune to Participate in the Wells Fargo 21st Annual Healthcare ConferenceSeptember 3, 2026 | globenewswire.comAltimmune, Inc. (ALT) Stock Price, News, Quote & History - Yahoo FinanceAugust 30, 2026 | finance.yahoo.comLightning Round: Avnet is a 'really good stock', says Jim CramerAugust 19, 2026 | cnbc.comAltimmune: Pemvidutide Performs, But A Long Wait AheadAugust 13, 2026 | seekingalpha.comSee More Headlines ALT Stock Analysis - Frequently Asked Questions How have ALT shares performed this year? Altimmune's stock was trading at $3.61 at the beginning of 2026. Since then, ALT shares have decreased by 5.5% and is now trading at $3.41. How were Altimmune's earnings last quarter? Altimmune, Inc. (NASDAQ:ALT) announced its quarterly earnings results on Tuesday, August, 11th. The company reported ($0.12) earnings per share for the quarter, topping the consensus estimate of ($0.14) by $0.02. Altimmune had a negative net margin of 214,860.98% and a negative trailing twelve-month return on equity of 31.41%. Read the conference call transcript. When did Altimmune's stock split? Shares of Altimmune reverse split on Friday, September 14th 2018.The 1-30 reverse split was announced on Thursday, September 13th 2018. The number of shares owned by shareholders was adjusted after the market closes on Thursday, September 13th 2018. An investor that had 100 shares of stock prior to the reverse split would have 3 shares after the split. Who are Altimmune's major shareholders? Altimmune's top institutional shareholders include Bank of New York Mellon Corp (0.35%), Hennion & Walsh Asset Management Inc. (0.27%), Wellington Management Group LLP (0.22%) and Squarepoint Ops LLC (0.10%). Insiders that own company stock include David Drutz, Jerome Benedict Durso, Gregory L Weaver, Wayne Pisano, John Gill and Diane Jorkasky. View institutional ownership trends. How do I buy shares of Altimmune? Shares of ALT 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 Altimmune own? Based on aggregate information from My MarketBeat watchlists, some other companies that Altimmune investors own include Invesco QQQ (QQQ), Meta Platforms (META), NVIDIA (NVDA), Advanced Micro Devices (AMD), Tesla (TSLA), Pfizer (PFE) and SPDR S&P 500 ETF Trust (SPY). Company Calendar Last Earnings8/11/2026Today9/22/2026Next Earnings (Estimated)11/05/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Red Zone (4m+) 1-Year History Sep 25 Dec 25 Mar 26 Jun 26 Sep 26 ALT's financial health is in the Red zone, according to TradeSmith. ALT has been in this zone for over 4 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:ALT CIK1326190 Webaltimmune.com Phone(240) 654-1450Fax410-269-2601Employees57Year Founded1997Price Target and Rating Average Price Target for Altimmune$14.33 High Price Target$20.00 Low Price Target$10.00 Potential Upside/Downside+320.3%Consensus RatingModerate Buy Rating Score (0-4)2.67 Research Coverage9 Analysts Profitability EPS (Trailing Twelve Months)($0.78) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$88.09 million Net Margins-214,860.98% Pretax Margin-296,000.00% Return on Equity-31.41% Return on Assets-26.96% Debt Debt-to-Equity Ratio0.07 Current Ratio26.78 Quick Ratio26.78 Sales & Book Value Annual Sales$40 thousand Price / Sales16,582.83 Cash FlowN/A Price / Cash FlowN/A Book Value$1.99 per share Price / Book1.71Miscellaneous Outstanding Shares194,520,000Free Float191,406,000Market Cap$663.31 million OptionableOptionable Beta0.18 Social Links 7 Stocks to Buy Before the Robotics RevolutionRobotics and automation are rapidly becoming essential infrastructure across healthcare, manufacturing, logistics, and many other industries. "Physical AI" is coming. Learn which seven companies are most positioned to benefit as intelligent robots enter the workforce.Get This Free Report This page (NASDAQ:ALT) was last updated on 9/22/2026 by MarketBeat.com Staff. From Our PartnersA councilman backed AI — then 13 bullets hit his front doorThirteen bullets hit an Indianapolis councilman's front door days after he backed a data center rezoning. Acro...Stansberry Research | Sponsored$40,000,000,000,000The national debt just hit 40 trillion dollars, and the U.S. now spends more on interest payments than on its ...American Alternative | SponsoredCFA: Decentralized AI is the Next WaveDon't buy Nvidia... Not when the AI companies that will define the next decade are selling for pennies. 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