Seres Therapeutics, Inc. (MCRB) Insider Trading -- Recent Executive & Director Transactions

7 insiders reported 69 Form 4 transactions for Seres Therapeutics, Inc. (MCRB) over the past 18 months (most recent 2026-05-19). Recent activity: DesRosier Thomas (See Remarks) Buy 244 shares, Shaff Eric D. (Director) Buy 722 shares, Henn Matthew R (See Remarks) Buy 238 shares, Brady Kelly (See Remarks) Buy 180 shares, DesRosier Thomas (See Remarks) Sell 79 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-05-19DesRosier ThomasSee RemarksBuy244$0
2026-05-19Shaff Eric D.DirectorBuy722$0
2026-05-19Henn Matthew RSee RemarksBuy238$0
2026-05-19Brady KellySee RemarksBuy180$0
2026-05-19DesRosier ThomasSee RemarksSell79$595
2026-05-19Shaff Eric D.DirectorSell259$1,950
2026-05-19Henn Matthew RSee RemarksSell77$580
2026-05-19Brady KellySee RemarksSell59$444
2026-02-18DesRosier ThomasSee RemarksBuy244$0
2026-02-18Shaff Eric D.DirectorSell259$2,194
2026-02-18Young Teresa L.See RemarksBuy231$0
2026-02-18Young Teresa L.See RemarksSell75$635
2026-02-18Shaff Eric D.DirectorBuy723$0
2026-02-18DesRosier ThomasSee RemarksSell78$661
2026-02-18Henn Matthew RSee RemarksBuy239$0
2026-02-18Henn Matthew RSee RemarksSell89$754
2025-11-18Shaff Eric D.DirectorBuy390$0
2025-11-18Shaff Eric D.DirectorBuy331$0
2025-11-18Shaff Eric D.DirectorSell217$3,754
2025-11-18Henn Matthew RSee RemarksBuy3,998$0
2025-11-18Henn Matthew RSee RemarksBuy140$0
2025-11-18Henn Matthew RSee RemarksBuy98$0
2025-11-18Henn Matthew RSee RemarksSell1,257$21,746
2025-11-18DesRosier ThomasSee RemarksBuy132$0
2025-11-18DesRosier ThomasSee RemarksBuy112$0

Source: SEC Form 4 filings · as of 2026-05-19