Insider Transactions Reported by 24 Insiders of Seres Therapeutics, Inc.

Symbol
MCRB on Nasdaq
Location
Cambridge, MA

Insiders trading volume in the past year

Seres Therapeutics, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Nutritional Health LTP Fund General Partner LLC 10%+ Owner $31,715,635 05 Jul 2022
NESTLE SA 10%+ Owner $18,378,993 30 Sep 2024
Flagship Pioneering Fund VII General Partner LLC 10%+ Owner $7,864,418 05 Jul 2022
David Arkowitz Chief Financial Officer $240,068 14 Feb 2024
Eric D. Shaff Director $162,643 -$11,162 -6.4% 15 Feb 2026
David S. Ege Executive Vice President and Chief Technology Officer $97,342 15 Aug 2024
Teresa L. Young EVP, Chief Commercial & Strategy Officer $91,470 -$20,103 -18% 15 Feb 2026
Thomas J. DesRosier EVP and Chief Legal Officer $87,627 -$3,816 -4.2% 04 Mar 2026
Matthew R. Henn President and Chief Scientific Officer $84,020 -$24,276 -22% 04 Mar 2026
Paula Cloghessy Executive Vice President, Chief People Officer $71,843 27 Oct 2023
Kelly M. Brady Chief Operating Officer, EVP $69,385 04 Mar 2026
Lisa von Moltke Executive Vice President and Chief Medical Officer $46,765 15 Feb 2025
Meryl Zausner Director $42,857 05 Jul 2022
Gregory Behar Director 22 Jun 2023
Willard H. Dere Director 10 Apr 2025
Dennis A. Ausiello Director 01 Jul 2025
Kurt Graves Director 10 Apr 2025
Claire Fraser Director 01 Jul 2025
Richard N. Kender Interim Chief Executive Officer, Director 04 Mar 2026
Robert L. Rosiello Director 05 Aug 2025
Marella Thorell EVP and Chief Financial Officer 04 Mar 2026
Stephen Berenson Director 01 Jul 2025
Hans-Juergen Woerle Director 04 Feb 2025
Paul Biondi Director 10 Apr 2025

Recent Insider Transactions by Companies or Individuals for Seres Therapeutics, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Kelly M. Brady MCRB Stock Option (right to buy) Award 56,250 56,250 04 Mar 2026 Direct
Richard N. Kender MCRB Stock Option (right to buy) Award 150,000 150,000 04 Mar 2026 Direct
Matthew R. Henn MCRB Stock Option (right to buy) Award 75,000 75,000 04 Mar 2026 Direct
Marella Thorell MCRB Stock Option (right to buy) Award 22,500 22,500 04 Mar 2026 Direct
Thomas J. DesRosier MCRB Stock Option (right to buy) Award 22,500 22,500 04 Mar 2026 Direct
Eric D. Shaff MCRB Common Stock Sale -2.19% $2,194 $8.47 -259 11,577 15 Feb 2026 Direct
Eric D. Shaff MCRB Common Stock Options Exercise 6.51% 723 11,836 15 Feb 2026 Direct
Eric D. Shaff MCRB Restricted Stock Units Options Exercise -31.6% -724 1,564 15 Feb 2026 Direct
Teresa L. Young MCRB Common Stock Sale -0.87% $635 $8.47 -75 8,557 15 Feb 2026 Direct
Teresa L. Young MCRB Common Stock Options Exercise 2.75% 231 8,632 15 Feb 2026 Direct
Teresa L. Young MCRB Restricted Stock Units Options Exercise -30.3% -231 531 15 Feb 2026 Direct
Thomas J. DesRosier MCRB Common Stock Sale -0.99% $661 $8.47 -78 7,789 15 Feb 2026 Direct
Thomas J. DesRosier MCRB Common Stock Options Exercise 3.2% 244 7,867 15 Feb 2026 Direct
Thomas J. DesRosier MCRB Restricted Stock Units Options Exercise -31.5% -244 531 15 Feb 2026 Direct
Matthew R. Henn MCRB Common Stock Sale -1.15% $754 $8.47 -89 7,677 15 Feb 2026 Direct
Matthew R. Henn MCRB Common Stock Options Exercise 3.18% 239 7,766 15 Feb 2026 Direct
Matthew R. Henn MCRB Restricted Stock Units Options Exercise -29.8% -239 563 15 Feb 2026 Direct
Teresa L. Young MCRB Common Stock Sale -11% $18,027 $17.30 -1,042 8,401 15 Nov 2025 Direct
Teresa L. Young MCRB Common Stock Options Exercise 81.1% 4,228 9,443 15 Nov 2025 Direct
Teresa L. Young MCRB Restricted Stock Units Options Exercise -100% -4,228 0 15 Nov 2025 Direct
Eric D. Shaff MCRB Common Stock Sale -1.92% $3,754 $17.30 -217 11,113 15 Nov 2025 Direct
Eric D. Shaff MCRB Common Stock Options Exercise 6.8% 721 11,330 15 Nov 2025 Direct
Eric D. Shaff MCRB Restricted Stock Units Options Exercise -27% -721 1,954 15 Nov 2025 Direct
Thomas J. DesRosier MCRB Common Stock Sale -0.99% $1,315 $17.30 -76 7,623 15 Nov 2025 Direct
Thomas J. DesRosier MCRB Common Stock Options Exercise 3.27% 244 7,699 15 Nov 2025 Direct
Thomas J. DesRosier MCRB Restricted Stock Units Options Exercise -26.9% -244 664 15 Nov 2025 Direct
Matthew R. Henn MCRB Common Stock Sale -14.3% $21,746 $17.30 -1,257 7,527 15 Nov 2025 Direct
Matthew R. Henn MCRB Common Stock Options Exercise 93.1% 4,236 8,784 15 Nov 2025 Direct
Matthew R. Henn MCRB Restricted Stock Units Options Exercise -100% -4,236 0 15 Nov 2025 Direct
Teresa L. Young MCRB Restricted Stock Units Award 3,998 3,998 26 Sep 2025 Direct
Matthew R. Henn MCRB Restricted Stock Units Award 3,998 3,998 26 Sep 2025 Direct
Eric D. Shaff MCRB Common Stock Sale -2% $3,613 $16.65 -217 10,609 18 Aug 2025 Direct
Thomas J. DesRosier MCRB Common Stock Sale -1.01% $1,265 $16.65 -76 7,455 18 Aug 2025 Direct
Matthew R. Henn MCRB Common Stock Sale -1.58% $1,215 $16.65 -73 4,548 18 Aug 2025 Direct
Teresa L. Young MCRB Common Stock Sale -1.12% $982 $16.65 -59 5,215 18 Aug 2025 Direct
Eric D. Shaff MCRB Common Stock Options Exercise 7.17% 724 10,826 15 Aug 2025 Direct
Eric D. Shaff MCRB Restricted Stock Units Options Exercise -23.6% -724 2,344 15 Aug 2025 Direct
Thomas J. DesRosier MCRB Common Stock Options Exercise 3.35% 244 7,531 15 Aug 2025 Direct
Thomas J. DesRosier MCRB Restricted Stock Units Options Exercise -23.5% -244 796 15 Aug 2025 Direct
Matthew R. Henn MCRB Common Stock Options Exercise 5.43% 238 4,621 15 Aug 2025 Direct
Matthew R. Henn MCRB Restricted Stock Units Options Exercise -22% -238 844 15 Aug 2025 Direct
Teresa L. Young MCRB Common Stock Options Exercise 4.56% 230 5,274 15 Aug 2025 Direct
Teresa L. Young MCRB Restricted Stock Units Options Exercise -22.4% -230 796 15 Aug 2025 Direct
Robert L. Rosiello MCRB Stock Option (right to buy) Award 10,000 10,000 05 Aug 2025 Direct
Dennis A. Ausiello MCRB Stock Option (right to buy) Award 6,452 6,452 01 Jul 2025 Direct
Stephen Berenson MCRB Stock Option (right to buy) Award 11,470 11,470 01 Jul 2025 Direct
Claire Fraser MCRB Stock Option (right to buy) Award 6,452 6,452 01 Jul 2025 Direct
Teresa L. Young MCRB Common Stock Sale -1.23% $459 $7.28 -63 5,044 16 May 2025 Direct
Eric D. Shaff MCRB Common Stock Sale -2.13% $1,602 $7.28 -220 10,102 16 May 2025 Direct
Matthew R. Henn MCRB Common Stock Sale -1.73% $561 $7.28 -77 4,383 16 May 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.