Seres Therapeutics (MCRB) Insider Trading & Ownership $16.69 -0.17 (-1.01%) Closing price 08/15/2025 04:00 PM EasternExtended Trading$16.28 -0.41 (-2.46%) As of 08/15/2025 07:58 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 Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Seres Therapeutics (NASDAQ:MCRB) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage4.70%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)4Amount OfInsider Selling(Last 12 Months)$31.25K Get MCRB Insider Trade Alerts Want to know when executives and insiders are buying or selling Seres Therapeutics stock? 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Email Address MCRB Insider Buying and Selling by Quarter Seres Therapeutics Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails2/18/2025Eric D ShaffCEOSell636$16.20$10,303.20 2/18/2025Matthew R HennInsiderSell197$16.20$3,191.40 2/18/2025Thomas DesrosierEVPSell215$16.20$3,483.00 11/18/2024Eric D ShaffCEOSell125$10.80$1,350.00 11/18/2024Moltke Lisa VonInsiderSell48$10.80$518.40 11/18/2024Thomas DesrosierEVPSell43$10.80$464.40 10/28/2024Eric D ShaffCEOSell437$13.80$6,030.60 10/28/2024Moltke Lisa VonInsiderSell216$13.80$2,980.80 10/28/2024Thomas DesrosierEVPSell212$13.80$2,925.60 (Data available from 1/1/2013 forward) MCRB Insider Trading Activity - Frequently Asked Questions Who is on Seres Therapeutics' Insider Roster? The list of insiders at Seres Therapeutics includes David Arkowitz, David S Ege, Eric D Shaff, Matthew R Henn, Moltke Lisa Von, Paula Cloghessy, Teresa L Young, and Thomas Desrosier. Learn more on insiders at MCRB. What percentage of Seres Therapeutics stock is owned by insiders? 4.70% of Seres Therapeutics stock is owned by insiders. Learn more on MCRB's insider holdings. Which Seres Therapeutics insiders have been selling company stock? The following insiders have sold MCRB shares in the last 24 months: David Arkowitz ($9,714.60), Eric D Shaff ($46,050.80), Matthew R Henn ($3,191.40), Moltke Lisa Von ($5,170.40), Paula Cloghessy ($3,915.00), Teresa L Young ($30,067.20), and Thomas Desrosier ($13,974.00). How much insider selling is happening at Seres Therapeutics? Insiders have sold a total of 5,701 Seres Therapeutics shares in the last 24 months for a total of $112,083.40 sold. Seres Therapeutics Key ExecutivesMr. Eric D. Shaff M.B.A. (Age 48)President, CEO & Director Compensation: $1.02M1 recent tradesDr. Lisa von Moltke M.D. (Age 65)Executive VP & Chief Medical Officer Compensation: $725.15kDr. Teresa L. Young Ph.D. (Age 57)R.Ph., Executive VP and Chief Commercial & Strategy Officer Compensation: $606.33kMs. Marella Thorell (Age 57)Executive VP & CFO Dr. David S. Ege Ph.D. (Age 49)Executive VP & Chief Technology Officer Compensation: $142.71kDr. Matthew R. Henn Ph.D. (Age 49)Executive VP & Chief Scientific Officer Compensation: $643.83kMr. Carlo Tanzi Ph.D.Investor Relations OfficerMr. Thomas J. DesRosier Esq. (Age 69)J.D., Chief Legal Officer, Executive VP & Secretary Compensation: $719.55kMs. Caroline HoldaAssistant General Counsel More Insider Trading Tools from MarketBeat Related Companies Oruka Therapeutics Insider Ownership Solid Biosciences Insider Ownership Kura Oncology Insider Ownership Prime Medicine Insider Ownership Arvinas Insider Ownership Eton Pharmaceuticals Insider Ownership Savara Insider Ownership Palvella Therapeutics Insider Ownership iTeos Therapeutics Insider Ownership Cullinan Therapeutics Insider Ownership Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles 5 Stocks Insiders Are Selling That Analysts Say BuyStrategy Insiders Buy In While Analysts Predict Big UpsideThe Bottom Is in For These 3 Small-Cap Stocks Insiders Are Buying3 Catalysts Driving Plug Power’s Turnaround CaseInsider Selling Hits Market Leaders—Should You Be Worried? 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