OS Therapies (OSTX) Stock Chart & Stock Price History $2.25 -0.06 (-2.60%) Closing price 09/12/2025 04:00 PM EasternExtended Trading$2.24 -0.01 (-0.44%) As of 09/12/2025 07:20 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 ForecastsChartCompetitorsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy 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 34.59%, with a year-to-date return of -47.43%. In the past month, the stock has increased 9.22%, reflecting recent market activity. As of the latest close, OS Therapies traded at $2.25 with a market cap of $71.20 million and volume of 294,314 shares. 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. Subscribe Now View SMS TermsBy 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. 5 Day Performance+2.27%1 Month Performance+9.22%3 Month Performance+23.63%Year-To-Date Performance-47.43%1 Year Performance-34.59% OSTX Stock Chart for Monday, September, 15, 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 Capitalization09/12/2025$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 million09/05/2025$2.09$2.20+5.26%$2.24$2.10389,796 shs$69.62 million09/04/2025$2.10$2.09-0.48%$2.14$2.02258,269 shs$66.14 million09/03/2025$2.23$2.10-5.83%$2.24$2.02460,237 shs$66.45 million09/02/2025$2.39$2.23-6.69%$2.36$2.11866,323 shs$70.57 million09/01/2025$2.39$2.39$2.40$2.20444,948 shs$75.63 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. 08/29/2025$2.26$2.39+5.75%$2.40$2.20444,948 shs$76.22 million08/28/2025$2.50$2.26-9.60%$2.54$2.26834,236 shs$72.08 million08/27/2025$2.33$2.50+7.30%$2.50$2.30807,550 shs$79.73 million08/26/2025$2.19$2.33+6.39%$2.38$2.13884,520 shs$74.31 million08/25/2025$2.48$2.19-11.69%$2.49$1.911.19 million shs$69.84 million08/22/2025$2.40$2.48+3.33%$2.57$2.361.08 million shs$79.09 million08/21/2025$2.19$2.40+9.59%$2.54$2.201.80 million shs$75.90 million08/20/2025$2.15$2.19+1.86%$2.24$2.10570,519 shs$69.26 million08/19/2025$2.18$2.15-1.38%$2.23$1.96819,610 shs$67.99 million08/18/2025$2.06$2.18+5.83%$2.20$2.04519,676 shs$68.94 million08/15/2025$2.15$2.06-4.19%$2.15$2.02484,126 shs$57.88 million08/14/2025$1.88$2.15+14.36%$2.16$1.71950,662 shs$60.41 million Related Companies Lifecore Biomedical Stock Chart Mereo BioPharma Group Stock Chart Aurora Cannabis Stock Chart Cartesian Therapeutics Stock Chart Candel Therapeutics Stock Chart Monopar Therapeutics Stock Chart Neumora Therapeutics Stock Chart Lexeo Therapeutics Stock Chart Atea Pharmaceuticals Stock Chart enGene 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. This page (NYSE:OSTX) was last updated on 9/15/2025 by MarketBeat.com Staff From Our PartnersOut of 18,347 Cryptocurrencies... This is the ONLY OneThe Single Most Undervalued DeFi Protocol You've Never Heard Of If there's one cryptocurrency you should b...Crypto 101 Media | SponsoredHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. Now, the man who called Nvi...The Oxford Club | SponsoredWhy Trump’s “Smart Dollar” could rewrite the rulesMUST SEE: Donald Trump's Radical Overhaul of the U.S. Dollar Congress just approved President Trump's lates...Stansberry Research | SponsoredTrump's Law S.1582: $21T Dollar Revolution ComingDo you have money in any of these banks? Chase. Bank of America. Citigroup. Wells Fargo. U.S. Bancorp. I...Brownstone Research | SponsoredForget AI Stocks — This Device Will REPLACE the MicrochipWhile everyone's chasing the same AI plays, George Gilder is focused on something completely different. He ...Banyan Hill Publishing | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredRetire Comfortably with These New Monthly Income ETFs?Too many retirees lie awake at night, worried their savings won’t last. Traditional advice and tiny returns ju...Investors Alley | Sponsored“Fed Proof” Your Bank Account with THESE 4 Simple StepsStarting as soon as a few months from now, the United States government will make a sweeping change to bank ac...Weiss Ratings | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding OS Therapies Inc Please log in to your account or sign up in order to add this asset to your watchlist. Share OS Therapies With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
