Atossa Therapeutics (ATOS) Stock Chart & Stock Price History $0.93 -0.02 (-1.71%) As of 11:43 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Atossa Therapeutics Stock Price Performance The Atossa Therapeutics (ATOS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 43.19%, with a year-to-date return of -1.92%. In the past month, the stock has increased 45.46%, reflecting recent market activity. As of the latest close, Atossa Therapeutics traded at $0.94 with a market cap of $121.69 million and volume of 667,387 shares. Five years ago, the stock traded at $2.20, representing a 57.91% decrease over that period. At the time, it had a market cap of $16.11 million and a volume of 8.79 million shares. 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Email Address 5 Day Performance-4.55%1 Month Performance+45.46%3 Month Performance+16.45%Year-To-Date Performance-1.92%1 Year Performance-43.19%5 Year Performance-57.91% ATOS Stock Chart for Wednesday, May, 21, 2025 ATOS Chart by TradingView Atossa Therapeutics Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/20/2025$0.98$0.94-4.22%$0.99$0.93667,387 shs$121.69 million05/19/2025$0.97$0.98+1.39%$0.99$0.93414,889 shs$127.05 million05/16/2025$0.99$0.97-1.57%$1.01$0.97574,810 shs$125.31 million05/15/2025$1.03$0.99-4.31%$1.06$0.961.07 million shs$127.31 million05/14/2025$0.89$1.03+15.73%$1.07$0.902.55 million shs$133.05 million05/13/2025$0.84$0.89+6.34%$0.89$0.83622,439 shs$114.96 million05/12/2025$0.82$0.84+1.52%$0.86$0.83552,183 shs$108.10 million05/09/2025$0.81$0.82+1.80%$0.84$0.81507,214 shs$106.49 million05/08/2025$0.81$0.81-0.15%$0.84$0.78386,080 shs$104.60 million05/07/2025$0.83$0.81-1.70%$0.87$0.80494,721 shs$104.76 million Get the Latest News and Ratings for ATOS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Atossa Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 05/06/2025$0.88$0.83-6.23%$0.92$0.80719,809 shs$106.57 million05/05/2025$0.86$0.88+2.85%$0.90$0.85405,537 shs$113.64 million05/02/2025$0.84$0.86+1.47%$0.90$0.84527,772 shs$110.49 million05/01/2025$0.90$0.84-6.11%$0.93$0.84913,975 shs$108.89 million04/30/2025$0.80$0.90+12.87%$0.90$0.791.07 million shs$115.98 million04/29/2025$0.74$0.80+7.09%$0.81$0.72729,308 shs$102.76 million04/28/2025$0.76$0.74-1.77%$0.76$0.72439,886 shs$95.95 million04/25/2025$0.73$0.76+3.22%$0.77$0.73371,547 shs$97.68 million04/24/2025$0.74$0.73-0.73%$0.76$0.71609,428 shs$94.63 million04/23/2025$0.66$0.74+11.25%$0.76$0.681.30 million shs$95.33 million04/22/2025$0.64$0.66+4.21%$0.68$0.64584,412 shs$85.69 million04/21/2025$0.62$0.64+2.17%$0.66$0.61468,139 shs$82.23 million Related Companies RLAY Stock Price Chart RGNX Stock Price Chart ZVRA Stock Price Chart UPB Stock Price Chart AMLX Stock Price Chart ARVN Stock Price Chart DNA Stock Price Chart CGEM Stock Price Chart ALT Stock Price Chart SEPN Stock Price Chart Receive ATOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Atossa Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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