Seres Therapeutics, Inc.

Ownership Transactions Reported by 23 Insiders

Symbol
MCRB on Nasdaq
Industry
Pharmaceutical Preparations
Location
200 Sidney Street, 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 $31.7M Jul 5, 2022
Nestle Sa 10%+ Owner $18.4M Sep 30, 2024
Flagship Pioneering Fund VII General Partner LLC 10%+ Owner $7.86M Jul 5, 2022
Eric D. Shaff Director $241K -$22.9K -8.68% Aug 15, 2025
David Arkowitz Chief Financial Officer $240K Feb 14, 2024
Thomas DesRosier Chief Legal Officer, EVP, Co-Chief Executive Officer, and Co-President $146K -$8.74K -5.66% Aug 15, 2025
Teresa L. Young EVP, Chief Commercial & Strategy Officer $106K -$6.6K -5.87% Sep 26, 2025
David S. Ege Executive Vice President and Chief Technology Officer $97.3K Aug 15, 2024
Matthew R. Henn Chief Scientific Officer and EVP $94.7K -$8.23K -7.99% Sep 26, 2025
Paula Cloghessy Executive Vice President, Chief People Officer $71.8K Oct 27, 2023
Lisa von Moltke Executive Vice President and Chief Medical Officer $46.8K -$7.1K -13.2% Feb 15, 2025
Meryl Zausner Director $42.9K Jul 5, 2022
Claire Fraser Director Jul 1, 2025
Hans-Juergen Woerle Director Feb 4, 2025
Gregory Behar Director Jun 22, 2023
Stephen Berenson Director Jul 1, 2025
Dennis A. Ausiello Director Jul 1, 2025
Marella Thorell EVP and Chief Financial Officer Feb 7, 2025
Willard H. Dere Director Apr 10, 2025
Richard N. Kender Director Apr 10, 2025
Kurt Graves Director Apr 10, 2025
Paul Biondi Director Apr 10, 2025
Robert L. Rosiello Director Aug 5, 2025

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

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.