NASDAQ:MCRB Seres Therapeutics (MCRB) Stock Price, News & Analysis $1.70 -0.28 (-14.14%) Closing price 11/9/2026 04:00 PM EasternExtended Trading$1.77 +0.07 (+4.35%) As of 03:59 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 Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC Filings About Seres Therapeutics Stock (NASDAQ:MCRB) 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 Seres Therapeutics alerts:Sign Up Key Stats Today's Range$1.68▼$2.0550-Day Range$1.70▼$5.7252-Week Range$1.68▼$29.98Volume184,184 shsAverage Volume76,404 shsMarket Capitalization$17.09 millionP/E RatioN/ADividend YieldN/APrice Target$17.00Consensus RatingHold Company Overview Seres Therapeutics, Inc. is a biotechnology company focused on developing live biotherapeutic products designed to restore the function of the human microbiome. The company’s platform uses defined communities of microorganisms rather than conventional fecal material to address diseases associated with microbiome disruption. Seres’ lead product, VOWST (fecal microbiota spores, live-brpk), was approved by the U.S. Food and Drug Administration in 2023 to prevent the recurrence of Clostridioides difficile infection in adults following antibacterial treatment. VOWST is an orally administered microbiome-based therapy and was among the first products of its kind to receive FDA approval. The company was founded in 2010 and is headquartered in Cambridge, Massachusetts. Seres has historically developed additional microbiome-based candidates for gastrointestinal and other immune-related conditions through clinical programs and collaborations. VOWST has been commercialized in the United States, while the company’s research and development activities have supported broader efforts to develop microbiome therapeutics for patients with serious diseases.AI Generated. May Contain Errors. Read More Seres Therapeutics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks61st Percentile Overall ScoreMCRB MarketRank™: 3.030532251405 of 5 starsSeres Therapeutics scored higher than 61% of companies evaluated by MarketBeat, and ranked 352nd out of 881 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.3 / 5Analyst RatingHold Consensus RatingSeres Therapeutics has received a consensus rating of Hold. The company's average rating score is 2.25, and is based on no strong buy ratings, 2 buy ratings, 1 hold rating, and 1 sell rating.Upside PotentialSeres Therapeutics has a consensus price target of $17.00, representing about 900.0% upside from its current price of $1.70.Amount of Analyst CoverageSeres Therapeutics has only been the subject of 1 research reports in the past 90 days.Read more about Seres Therapeutics' stock forecast and price target. Earnings and Valuation1.3 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Seres Therapeutics are expected to grow in the coming year, from ($6.78) to ($1.77) per share.Price to Book Value per Share RatioSeres Therapeutics has a P/B Ratio of 0.35. P/B Ratios below 1 indicate that a company could be undervalued with respect to its assets and liabilities. Short Interest4.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted3.28% of the float of Seres Therapeutics has been sold short.Short Interest Ratio / Days to CoverSeres Therapeutics has a short interest ratio ("days to cover") of 3.45, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Seres Therapeutics has recently decreased by 0.61%, indicating that investor sentiment is improving. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldSeres Therapeutics does not currently pay a dividend.Dividend GrowthSeres Therapeutics does not have a long track record of dividend growth. News and Social Media1.2 / 5News Sentiment-0.10 News SentimentSeres Therapeutics has a news sentiment score of -0.10. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.39 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 12 news articles for Seres Therapeutics this week, compared to 2 articles on an average week. Company Ownership1.6 / 5Insider TradingSelling Shares Insider Buying vs. Insider SellingIn the past three months, Seres Therapeutics insiders have sold more of their company's stock than they have bought. Specifically, they have bought $0.00 in company stock and sold $2,230.00 in company stock.Percentage Held by Insiders5.20% of the stock of Seres Therapeutics is held by insiders.Percentage Held by Institutions59.34% of the stock of Seres Therapeutics is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Seres Therapeutics' insider trading history. Receive MCRB Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Seres Therapeutics 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. By 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. MCRB Stock News HeadlinesAnalysts Offer Insights on Healthcare Companies: Pacific Biosciences (PACB), Seres Therapeutics (MCRB) and Relay Therapeutics (RLAY)November 8 at 4:39 AM | theglobeandmail.comEquities Analysts Set Expectations for MCRB FY2026 EarningsNovember 8 at 1:29 AM | americanbankingnews.com$0. Later: $29.97.Bill Poulos is giving away his Simple Options Trading For Beginners book through a temporary link. Once that link expires, it returns to its usual price of $29.97. The content stays the same - plain-English lessons and a handful of proven techniques - only the price changes. Waiting means paying for something you could have gotten for free.November 10 at 1:00 AM | Profits Run (Ad)Seres Therapeutics (NASDAQ:MCRB) Stock Moved Down to Strong Sell by Wall Street ZenNovember 7 at 2:07 AM | americanbankingnews.comSeres Therapeutics Reports Third Quarter 2026 Financial Results and Announces Plans for Advancing Development of SER-155 To Prevent Immune Checkpoint Inhibitor-Related ...November 4, 2026 | markets.businessinsider.comSeres Therapeutics: Q3 earnings snapshotNovember 4, 2026 | msn.comSeres Therapeutics Announces Publication of SER-155 Phase 1b Results in Nature Medicine Showing Reduced Bloodstream Infections in Allogeneic Hematopoietic Cell Transplantation ...November 3, 2026 | markets.businessinsider.comSeres Therapeutics Announces Publication of SER-155 Phase 1b Results in Nature Medicine Showing Reduced Bloodstream Infections in Allogeneic Hematopoietic Cell Transplantation RecipientsNovember 3, 2026 | globenewswire.comSee More Headlines MCRB Stock Analysis - Frequently Asked Questions How have MCRB shares performed this year? Seres Therapeutics' stock was trading at $14.88 at the beginning of 2026. Since then, MCRB stock has decreased by 88.6% and is now trading at $1.70. How were Seres Therapeutics' earnings last quarter? Seres Therapeutics, Inc. (NASDAQ:MCRB) released its quarterly earnings results on Wednesday, November, 4th. The biotechnology company reported ($1.63) earnings per share (EPS) for the quarter, missing the consensus estimate of ($1.00) by $0.63. The biotechnology company had revenue of $593 thousand for the quarter, compared to analyst estimates of $6.35 million. Seres Therapeutics had a negative trailing twelve-month return on equity of 175.40% and a negative net margin of 2,209.55%. When did Seres Therapeutics' stock split? Seres Therapeutics shares reverse split on the morning of Tuesday, April 22nd 2025.The 1-20 reverse split was announced on Thursday, April 10th 2025. The number of shares owned by shareholders was adjusted after the market closes on Monday, April 21st 2025. An investor that had 100 shares of stock prior to the reverse split would have 5 shares after the split. When did Seres Therapeutics IPO? Seres Therapeutics (MCRB) raised $119 million in an initial public offering on Friday, June 26th 2015. The company issued 7,430,555 shares at $15.00-$17.00 per share. Goldman Sachs and BofA Merrill Lynch acted as the underwriters for the IPO and Leerink Partners and Canaccord Genuity were co-managers. How do I buy shares of Seres Therapeutics? Shares of MCRB 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 Seres Therapeutics own? Based on aggregate information from My MarketBeat watchlists, some other companies that Seres Therapeutics investors own include NVIDIA (NVDA), PayPal (PYPL), Micron Technology (MU), Alibaba Group (BABA), Pfizer (PFE), NIO (NIO) and Workhorse Group (WKHS). Company Calendar Last Earnings11/04/2026Today11/09/2026Fiscal 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. Red Zone (5m+) 1-Year History Nov 25 Feb 26 May 26 Aug 26 Nov 26 MCRB's financial health is in the Red zone, according to TradeSmith. MCRB has been in this zone for over 5 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:MCRB CIK1609809 Webwww.serestherapeutics.com Phone(617) 945-9626FaxN/AEmployees66Year Founded2010Price Target and Rating Average Price Target for Seres Therapeutics$17.00 High Price Target$22.00 Low Price Target$12.00 Potential Upside/Downside+900.0%Consensus RatingHold Rating Score (0-4)2.25 Research Coverage4 Analysts Profitability EPS (Trailing Twelve Months)($5.00) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income$5.70 million Net Margins-2,209.55% Pretax Margin-1,192.94% Return on Equity-175.40% Return on Assets-51.65% Debt Debt-to-Equity RatioN/A Current Ratio2.11 Quick Ratio2.11 Sales & Book Value Annual Sales$790 thousand Price / Sales21.63 Cash Flow$0.89 per share Price / Cash Flow1.92 Book Value$4.89 per share Price / Book0.35Miscellaneous Outstanding Shares10,050,000Free Float9,665,000Market Cap$17.09 million OptionableOptionable Beta0.44 Social Links 7 Stocks to Buy Before the Robotics RevolutionRobotics and automation are rapidly becoming essential infrastructure across healthcare, manufacturing, logistics, and many other industries. "Physical AI" is coming. Learn which seven companies are most positioned to benefit as intelligent robots enter the workforce.Get This Free Report This page (NASDAQ:MCRB) was last updated on 11/9/2026 by MarketBeat.com Staff. From Our PartnersEvery Starlink dish pays this stockThere's a chip inside every Tesla and Starlink dish that Elon doesn't own. He pays royalties to use it. Now...Behind the Markets | SponsoredMy public warning after 55 years of watching the marketsDr. Martin D. 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