OS Therapies (OSTX) Stock Chart & Stock Price History $2.04 0.00 (0.00%) Closing price 04:10 PM EasternExtended Trading$2.07 +0.03 (+1.47%) As of 07:14 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 Chart Stock AnalysisAnalyst ForecastsChartHeadlinesInsider TradesOwnershipSEC FilingsShort InterestBuy This Stock OS Therapies Stock Price Performance The OS Therapies (OSTX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 35.24%, with a year-to-date return of -52.34%. In the past month, the stock has decreased 8.93%, reflecting recent market activity. As of the latest close, OS Therapies traded at $2.04 with a market cap of $64.57 million and volume of 414,564 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+0.99%1 Month Performance-8.93%3 Month Performance+25.93%Year-To-Date Performance-52.34%1 Year Performance-35.24% OSTX Stock Chart for Wednesday, October, 8, 2025 OSTX Chart by TradingView OS Therapies 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 Capitalization10/07/2025$2.07$2.04-1.45%$2.13$2.00414,564 shs$64.57 million10/06/2025$2.02$2.07+2.48%$2.13$2.03327,577 shs$65.51 million10/03/2025$1.99$2.02+1.51%$2.06$2.00226,305 shs$63.92 million10/02/2025$2.00$1.99-0.50%$2.05$1.93155,155 shs$62.97 million10/01/2025$1.96$2.00+2.04%$2.07$1.88367,483 shs$63.29 million09/30/2025$2.01$1.96-2.49%$2.04$1.87702,198 shs$62.02 million09/29/2025$2.05$2.01-1.95%$2.13$2.01324,719 shs$63.61 million09/26/2025$2.11$2.05-2.84%$2.11$2.01392,899 shs$64.87 million09/25/2025$2.24$2.11-5.80%$2.23$2.05726,993 shs$66.77 million09/24/2025$2.22$2.24+0.90%$2.25$2.16240,317 shs$70.89 million Get the Latest News and Ratings for OSTX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for OS Therapies and its competitors with MarketBeat's FREE daily newsletter. 09/23/2025$2.21$2.22+0.45%$2.24$2.14320,403 shs$70.25 million09/22/2025$2.12$2.21+4.25%$2.23$2.11306,792 shs$69.94 million09/19/2025$2.21$2.12-4.07%$2.25$2.121.11 million shs$67.09 million09/18/2025$2.20$2.21+0.45%$2.22$2.05291,745 shs$69.94 million09/17/2025$2.22$2.20-0.90%$2.25$2.16229,022 shs$69.62 million09/16/2025$2.20$2.22+0.91%$2.28$2.19198,740 shs$70.25 million09/15/2025$2.25$2.20-2.22%$2.32$2.20324,156 shs$69.62 million09/12/2025$2.31$2.25-2.60%$2.32$2.21294,314 shs$71.20 million09/11/2025$2.20$2.31+5.00%$2.35$2.19346,910 shs$73.10 million09/10/2025$2.19$2.20+0.46%$2.23$2.15177,949 shs$69.62 million09/09/2025$2.24$2.19-2.23%$2.29$2.16287,104 shs$69.30 million09/08/2025$2.20$2.24+1.82%$2.33$2.19416,841 shs$70.89 million Related Companies Neurogene Stock Chart Prima BioMed Stock Chart Adherex Technologies Stock Chart DBV Technologies Stock Chart Voyager Therapeutics Stock Chart Maxpro Capital Acquisition Stock Chart Lyell Immunopharma Stock Chart Aerovate Therapeutics Stock Chart Puma Biotechnology Stock Chart Cartesian Therapeutics Stock Chart Receive OSTX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for OS Therapies and its competitors with MarketBeat's FREE daily newsletter. 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