Positive News SentimentPositive NewsNASDAQ:MCRB Seres Therapeutics (MCRB) Stock Price, News & Analysis $3.52 0.00 (0.00%) Closing price 04:00 PM EasternExtended Trading$3.60 +0.08 (+2.30%) As of 07:30 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 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$3.41▼$3.5550-Day Range$3.52▼$5.7252-Week Range$3.41▼$29.98Volume55,483 shsAverage Volume53,495 shsMarket Capitalization$35.38 millionP/E RatioN/ADividend YieldN/APrice Target$17.00Consensus RatingHold Company Overview Seres Therapeutics, Inc. is a biotechnology company focused on developing live biotherapeutics designed to treat diseases by restoring or modifying the human microbiome. The company’s research has centered on microbial communities that may influence immune function, gastrointestinal health and disease progression. Seres’ lead product, VOWST (fecal microbiota spores, live-brpk), was developed to reduce the recurrence of Clostridioides difficile infection in adults following antibacterial treatment. The orally administered therapy uses purified bacterial spores to help restore the gut microbiome and received approval from the U.S. Food and Drug Administration in 2023. Founded in 2010 and headquartered in Cambridge, Massachusetts, Seres has pursued microbiome-based therapies for gastrointestinal and immune-mediated conditions. The company’s programs have included treatments intended to support patients undergoing hematopoietic stem cell transplantation and other therapies that can disrupt the intestinal microbiome. Seres has served primarily the U.S. market through its development and commercialization activities and has worked with pharmaceutical and healthcare partners to advance its products.AI Generated. May Contain Errors. Read More Seres Therapeutics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks70th Percentile Overall ScoreMCRB MarketRank™: Seres Therapeutics scored higher than 70% of companies evaluated by MarketBeat, and ranked 222nd out of 900 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 383.0% upside from its current price of $3.52.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 ($6.33) to ($2.06) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Seres Therapeutics is -1.45, 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 Seres Therapeutics is -1.45, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioSeres Therapeutics has a P/B Ratio of 0.72. P/B Ratios below 1 indicate that a company could be undervalued with respect to its assets and liabilities.Read more about Seres Therapeutics' valuation and earnings. Short Interest4.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted3.16% 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 5.72.Change versus previous monthShort interest in Seres Therapeutics has recently decreased by 15.48%, indicating that investor sentiment is improving significantly. 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 Media3.0 / 5News SentimentN/A News SentimentSeres Therapeutics has a news sentiment score of 1.79. 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 higher news sentiment than the 0.75 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 1 news article for Seres Therapeutics this week, compared to 2 articles on an average week.Search InterestOnly 2 people have searched for MCRB on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days. 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 HeadlinesSeres Therapeutics, Inc.(NasdaqGS:MCRB) dropped from S&P Global BMI IndexSeptember 20, 2026 | marketscreener.comMSeres Therapeutics Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)September 8, 2026 | globenewswire.comTrump goes "all-in" on Grand Canyon energy breakthroughA drilling crew near the Grand Canyon uncovered a clean energy well producing nearly eight times the output of Saudi Arabia's largest oil field, with potential to last two million years. While the One Big Beautiful Bill Act eliminated federal credits for solar, wind, and EVs, this energy source was reclassified alongside oil and nuclear power and given eight years of tax credits. Google signed a 15-year contract, and Bill Gates committed $100 million. One company controls the entire supply chain behind this discovery.September 28 at 1:00 AM | Behind the Markets (Ad)Seres Therapeutics to Participate in H.C. Wainwright 28th Annual Global Investment ConferenceSeptember 1, 2026 | globenewswire.comCanaccord Genuity Reaffirms Their Buy Rating on Seres Therapeutics (MCRB)August 20, 2026 | theglobeandmail.comSeres Therapeutics: Q2 Earnings SnapshotAugust 5, 2026 | finance.yahoo.comSeres Therapeutics Reports Second Quarter 2026 Financial Results and Provides Business Updates, Including Further Action to Reduce Ongoing Facilities CostsAugust 5, 2026 | finance.yahoo.comSeres Therapeutics Streamlines Cambridge Operations with Lease ChangesAugust 4, 2026 | tipranks.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 start of the year. Since then, MCRB stock has decreased by 76.3% and is now trading at $3.52. How were Seres Therapeutics' earnings last quarter? Seres Therapeutics, Inc. (NASDAQ:MCRB) released its quarterly earnings data on Wednesday, August, 5th. The biotechnology company reported $0.47 earnings per share (EPS) for the quarter, topping analysts' consensus estimates of ($2.18) by $2.65. The biotechnology company earned $0.74 million during the quarter, compared to analysts' expectations of $0.18 million. Seres Therapeutics had a negative trailing twelve-month return on equity of 114.82% and a negative net margin of 1,192.94%. When did Seres Therapeutics' stock split? Shares of Seres Therapeutics 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 a price of $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. Who are Seres Therapeutics' major shareholders? Top institutional shareholders of Seres Therapeutics include Integrated Wealth Concepts LLC (0.04%). Insiders that own company stock include Eric D Shaff, Kelly Brady, Thomas Desrosier, Matthew R Henn, Teresa L Young, Paula Cloghessy and Moltke Lisa Von. View institutional ownership trends. 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 PayPal (PYPL), NVIDIA (NVDA), Meta Platforms (META), Tesla (TSLA), Micron Technology (MU), Qualcomm (QCOM) and NIO (NIO). Company Calendar Last Earnings8/05/2026Today9/28/2026Next Earnings (Estimated)11/04/2026Fiscal 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 (3m+) 1-Year History Sep 25 Dec 25 Mar 26 Jun 26 Sep 26 MCRB's financial health is in the Red zone, according to TradeSmith. MCRB has been in this zone for over 3 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+383.0%Consensus RatingHold Rating Score (0-4)2.25 Research Coverage4 Analysts Profitability EPS (Trailing Twelve Months)($2.43) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income$5.70 million Net Margins-1,192.94% Pretax Margin-1,192.94% Return on Equity-114.82% Return on Assets-34.15% Debt Debt-to-Equity RatioN/A Current Ratio2.11 Quick Ratio2.11 Sales & Book Value Annual Sales$790 thousand Price / Sales44.78 Cash Flow$1.09 per share Price / Cash Flow3.24 Book Value$4.89 per share Price / Book0.72Miscellaneous Outstanding Shares10,050,000Free Float9,523,000Market Cap$35.38 million OptionableOptionable Beta0.21 Social Links The 10 Best High-Yield Dividend Stocks for 2026Discover the 10 Best High-Yield Dividend Stocks for 2026 and secure reliable income in uncertain markets. Download the report now to identify top dividend payers and avoid common yield traps.Get This Free Report This page (NASDAQ:MCRB) was last updated on 9/28/2026 by MarketBeat.com Staff. From Our PartnersShould You Convert a Traditional IRA to a Roth After 60?Considering a Roth conversion after 60? The upside includes no income limits on conversions, potential tax-fre...SmartAsset | SponsoredManagement just bought 2.8 million sharesManagement just backed a $100 million buyback, repurchasing 2.8 million shares at an average price of $35.26 i...Monument Traders Alliance | SponsoredThis AI Stock Reminds One Analyst of Early NvidiaJeff Brown picked Nvidia in 2016, before shares surged 37,800 percent. Now he's identified another AI company ...Brownstone Research | SponsoredI'm giving you a space stock today. Free.On December 8th, $600 billion in frozen SpaceX stock comes loose. 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