Atossa Therapeutics (ATOS) Stock Chart & Stock Price History $0.86 +0.01 (+1.47%) Closing price 05/2/2025 04:00 PM EasternExtended Trading$0.86 +0.00 (+0.42%) As of 04:02 AM 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Atossa Therapeutics Stock Price Performance 5 Day Performance-4.73%1 Month Performance+42.31%3 Month Performance+0.67%6 Month Performance-38.90%Year-To-Date Performance-9.40%1 Year Performance-48.47% 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. Email Address ATOS Stock Chart for Monday, May, 5, 2025 ATOS Chart by TradingView Atossa Therapeutics Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/02/2025$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 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. 04/18/2025$0.62$0.62$0.63$0.59415,144 shs$80.49 million04/17/2025$0.61$0.62+2.99%$0.63$0.59415,144 shs$80.49 million04/16/2025$0.62$0.61-2.94%$0.64$0.60599,942 shs$78.15 million04/15/2025$0.63$0.62-1.06%$0.65$0.61714,258 shs$80.51 million04/14/2025$0.65$0.63-2.49%$0.67$0.62523,587 shs$81.38 million04/11/2025$0.59$0.65+9.56%$0.65$0.59629,677 shs$83.46 million04/10/2025$0.62$0.59-4.90%$0.64$0.57593,791 shs$76.17 million04/09/2025$0.59$0.62+4.91%$0.64$0.56989,933 shs$80.10 million04/09/2025$0.59$0.62+4.91%$0.64$0.56989,933 shs$80.10 million04/08/2025$0.65$0.59-8.74%$0.68$0.58892,483 shs$76.35 million04/08/2025$0.65$0.59-8.74%$0.68$0.58892,483 shs$76.35 million04/07/2025$0.60$0.65+7.75%$0.66$0.551.04 million shs$83.66 million04/04/2025$0.64$0.60-6.44%$0.64$0.601.50 million shs$77.64 million Related Companies KMDA Stock Price Chart RVNC Stock Price Chart TECX Stock Price Chart AUTL Stock Price Chart TSHA Stock Price Chart MAZE Stock Price Chart ORIC Stock Price Chart CMPS Stock Price Chart TKNO Stock Price Chart HRTX 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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