Sutro Biopharma (STRO) Stock Chart & Stock Price History $0.89 +0.01 (+1.29%) Closing price 04:00 PM EasternExtended Trading$0.88 0.00 (-0.47%) As of 06:38 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Sutro Biopharma Stock Price Performance The Sutro Biopharma (STRO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 80.26%, with a year-to-date return of -51.73%. In the past month, the stock has increased 1.16%, reflecting recent market activity. As of the latest close, Sutro Biopharma traded at $0.88 with a market cap of $74.34 million and volume of 530,818 shares. Five years ago, the stock traded at $11.15, representing a 92.03% decrease over that period. At the time, it had a market cap of $400.05 million and a volume of 421,416 shares. Receive STRO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Sutro Biopharma 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. 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Read our full terms of service and privacy policy. 5 Day Performance-2.44%1 Month Performance+1.16%3 Month Performance+11.15%Year-To-Date Performance-51.73%1 Year Performance-80.26%5 Year Performance-92.03% STRO Stock Chart for Monday, September, 15, 2025 STRO Chart by TradingView Sutro Biopharma 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 Capitalization09/15/2025$0.88$0.89+1.29%$0.91$0.86236,251 shs$75.29 million09/12/2025$0.97$0.88-9.60%$0.96$0.85530,818 shs$74.34 million09/11/2025$0.91$0.97+6.55%$1.01$0.91477,180 shs$82.23 million09/10/2025$0.97$0.91-6.21%$1.00$0.90757,266 shs$77.18 million09/09/2025$0.98$0.97-1.18%$0.98$0.95387,867 shs$82.29 million09/08/2025$1.06$0.98-7.33%$1.03$0.90973,100 shs$83.27 million09/05/2025$1.02$1.06+3.92%$1.18$1.011.09 million shs$89.86 million09/04/2025$1.01$1.02+0.99%$1.04$0.95535,332 shs$86.47 million09/03/2025$0.95$1.01+6.20%$1.07$0.96739,909 shs$85.62 million09/02/2025$0.86$0.95+10.96%$1.03$0.861.16 million shs$80.62 million Get the Latest News and Ratings for STRO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Sutro Biopharma and its competitors with MarketBeat's FREE daily newsletter. 09/01/2025$0.86$0.86$0.91$0.85262,576 shs$72.66 million08/29/2025$0.90$0.86-4.28%$0.91$0.85262,576 shs$72.66 million08/28/2025$0.90$0.90-0.91%$0.92$0.89170,909 shs$75.91 million08/27/2025$0.90$0.90+0.46%$0.92$0.89542,726 shs$76.60 million08/26/2025$0.84$0.90+7.53%$0.91$0.83562,077 shs$76.25 million08/25/2025$0.86$0.84-2.48%$0.88$0.84476,263 shs$70.91 million08/22/2025$0.85$0.86+1.20%$0.88$0.83464,761 shs$72.72 million08/21/2025$0.86$0.85-1.95%$0.92$0.84217,323 shs$71.85 million08/20/2025$0.86$0.86+0.31%$0.93$0.81402,499 shs$73.28 million08/19/2025$0.91$0.86-5.30%$0.93$0.84235,537 shs$73.06 million08/18/2025$0.88$0.91+3.64%$0.96$0.80654,955 shs$77.14 million08/15/2025$0.78$0.88+12.55%$0.96$0.781.31 million shs$74.43 million08/14/2025$0.77$0.78+1.05%$0.79$0.76342,043 shs$66.13 million Related Companies I-Mab Stock Price Chart Upexi Stock Price Chart Rocket Pharmaceuticals Stock Price Chart Abeona Therapeutics Stock Price Chart Canopy Growth Stock Price Chart 4D Molecular Therapeutics Stock Price Chart Altimmune Stock Price Chart Aldeyra Therapeutics Stock Price Chart Foghorn Therapeutics Stock Price Chart Larimar Therapeutics Stock Price Chart Receive STRO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Sutro Biopharma and its competitors with MarketBeat's FREE daily newsletter. 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