NASDAQ:STRO Sutro Biopharma (STRO) Stock Price, News & Analysis $22.92 +0.33 (+1.47%) As of 02:05 PM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Sutro Biopharma Stock (NASDAQ:STRO) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Sutro Biopharma alerts:Sign Up Key Stats Today's Range$22.46▼$23.2950-Day Range$22.59▼$40.9152-Week Range$7.15▼$43.85Volume208,111 shsAverage Volume254,016 shsMarket Capitalization$379.82 millionP/E RatioN/ADividend YieldN/APrice Target$52.44Consensus RatingModerate Buy Company Overview Sutro Biopharma, Inc. is a clinical-stage biopharmaceutical company focused on the discovery and development of novel biologic drug candidates in the fields of oncology and immunology. The company leverages a proprietary cell-free protein synthesis platform, XpressCF™, to design and produce complex, multi-specific proteins that include antibody-drug conjugates, bispecific antibodies, and cytokine fusion proteins. This platform enables rapid generation and optimization of protein therapeutics that may not be feasible with traditional cell-based expression systems. Founded in 2003 and headquartered in South San Francisco, California, Sutro Biopharma has built a pipeline of immuno-oncology candidates in various stages of preclinical and clinical development. The company’s lead programs target solid tumors and hematologic malignancies, with several assets designed to engage the immune system through both targeted delivery of cytotoxic payloads and enhancement of T-cell activity. In addition to advancing its own pipeline, Sutro has forged research and development collaborations with global pharmaceutical partners to apply its XpressCF™ platform across a range of therapeutic areas. With operations anchored in the San Francisco Bay Area, Sutro Biopharma serves both domestic and international partners through collaborative agreements and licensing arrangements. The company’s scientific leadership brings together expertise in protein engineering, antibody biology, and translational medicine, positioning Sutro to address challenging molecular targets and streamline the path from discovery to clinical testing. As a publicly traded entity on the NASDAQ under the symbol STRO, Sutro continues to pursue innovative biologic therapies aimed at improving outcomes for patients with cancer and other immune-related diseases.AI Generated. May Contain Errors. Read More Sutro Biopharma Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks52nd Percentile Overall ScoreSTRO MarketRank™: Sutro Biopharma scored higher than 52% of companies evaluated by MarketBeat, and ranked 893rd out of 1,682 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion4.5 / 5Analyst RatingModerate Buy Consensus RatingSutro Biopharma has received a consensus rating of Moderate Buy. The company's average rating score is 2.92, and is based on 2 strong buy ratings, 8 buy ratings, 1 hold rating, and 1 sell rating.Upside PotentialSutro Biopharma has a consensus price target of $52.44, representing about 127.7% upside from its current price of $23.03.Amount of Analyst CoverageSutro Biopharma has been the subject of 8 research reports in the past 90 days, demonstrating strong analyst interest in this stock.Read more about Sutro Biopharma's stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Sutro Biopharma are expected to grow in the coming year, from ($9.00) to ($7.48) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Sutro Biopharma is -2.09, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Sutro Biopharma is -2.09, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Read more about Sutro Biopharma's valuation and earnings. Short Interest2.0 / 5Short Interest LevelBearish Percentage of Shares Shorted8.53% of the float of Sutro Biopharma has been sold short.Short Interest Ratio / Days to CoverSutro Biopharma has a short interest ratio ("days to cover") of 2.31, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Sutro Biopharma has recently increased by 47.69%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldSutro Biopharma does not currently pay a dividend.Dividend GrowthSutro Biopharma does not have a long track record of dividend growth. News and Social Media0.6 / 5News Sentiment0.00 News Coverage This WeekMarketBeat has tracked 2 news articles for Sutro Biopharma this week, compared to 3 articles on an average week.Search Interest2 people have searched for STRO on MarketBeat in the last 30 days. This is an increase of 100% compared to the previous 30 days. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Sutro Biopharma insiders have not sold or bought any company stock.Percentage Held by Insiders1.80% of the stock of Sutro Biopharma is held by insiders.Percentage Held by Institutions96.99% of the stock of Sutro Biopharma is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Sutro Biopharma's insider trading history. Receive STRO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Sutro Biopharma and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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(NASDAQ:STRO) ForecastsMay 28, 2026 | finance.yahoo.comA letter from Shannon StansberryPorter Stansberry nearly canceled the entire project. When he first saw the claimed returns - only one down year in nearly two decades and total gains of almost 2,000% - his immediate reaction was disbelief. It took a trusted friend's personal vouching for Emmet Savage and a face-to-face trip to Ireland to change his mind. The full documentary, Investigating Project Prophet, is now live.July 21 at 1:00 AM | Porter & Company (Ad)US$47.10 - That's What Analysts Think Sutro Biopharma, Inc. (NASDAQ:STRO) Is Worth After These ResultsMay 17, 2026 | finance.yahoo.comWedbush upgrades Sutro Biopharma (STRO)May 16, 2026 | msn.comSutro Biopharma Reports First Quarter 2026 Financial Results and Business HighlightsMay 14, 2026 | globenewswire.comCitizens Lifts PT on Sutro Biopharma (STRO) on Its Pipeline and Lead ProgramMay 1, 2026 | insidermonkey.comMizuho initiates coverage of Sutro Biopharma (STRO) with outperform recommendationMay 1, 2026 | msn.comSee More Headlines STRO Stock Analysis - Frequently Asked Questions How have STRO shares performed this year? Sutro Biopharma's stock was trading at $11.57 on January 1st, 2026. Since then, STRO shares have increased by 99.0% and is now trading at $23.03. How were Sutro Biopharma's earnings last quarter? Sutro Biopharma, Inc. (NASDAQ:STRO) announced its earnings results on Thursday, May, 14th. The company reported ($2.94) EPS for the quarter, missing the consensus estimate of ($2.74) by $0.20. The business earned $14.52 million during the quarter, compared to analysts' expectations of $8.89 million. When did Sutro Biopharma's stock split? Sutro Biopharma's stock reverse split on the morning of Wednesday, December 3rd 2025.A 1-10 reverse split was announced. The number of shares owned by shareholders was adjusted after the market closes on Tuesday, December 2nd 2025. An investor that had 100 shares of stock prior to the reverse split would have 10 shares after the split. When did Sutro Biopharma IPO? Sutro Biopharma (STRO) raised $85 million in an IPO on Thursday, September 27th 2018. The company issued 5,667,000 shares at $14.00-$16.00 per share. Cowen and Piper Jaffray acted as the underwriters for the IPO and JMP Securities and Wedbush PacGrow were co-managers. How do I buy shares of Sutro Biopharma? Shares of STRO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Sutro Biopharma own? Based on aggregate information from My MarketBeat watchlists, some other companies that Sutro Biopharma investors own include NVIDIA (NVDA), Tesla (TSLA), Advanced Micro Devices (AMD), JPMorgan Chase & Co. (JPM), Meta Platforms (META), Moderna (MRNA) and Home Depot (HD). Company Calendar Last Earnings5/14/2026Today7/21/2026Next Earnings (Estimated)8/06/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Yellow Zone (1d) 1-Year History Jul 25 Oct 25 Jan 26 Apr 26 Jul 26 STRO's financial health is in the Yellow zone, according to TradeSmith. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:STRO CIK1382101 Webwww.sutrobio.com Phone(650) 392-8412FaxN/AEmployees240Year Founded2003Price Target and Rating Average Price Target for Sutro Biopharma$52.44 High Price Target$100.00 Low Price Target$27.00 Potential Upside/Downside+128.8%Consensus RatingModerate Buy Rating Score (0-4)2.92 Research Coverage12 Analysts Profitability EPS (Trailing Twelve Months)($11.04) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$191.09 million Net Margins-154.21% Pretax Margin-154.32% Return on EquityN/A Return on Assets-69.20% Debt Debt-to-Equity RatioN/A Current Ratio3.12 Quick Ratio3.12 Sales & Book Value Annual Sales$102.48 million Price / Sales3.71 Cash FlowN/A Price / Cash FlowN/A Book Value($15.43) per share Price / Book-1.49Miscellaneous Outstanding Shares16,570,000Free Float16,272,000Market Cap$379.87 million OptionableOptionable Beta1.51 Social Links 7 Stocks That Will Be Magnificent in 2026Discover the next wave of investment opportunities with our report, 7 Stocks That Will Be Magnificent in 2026. 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