Chief Accounting Officer
Seres Therapeutics, Inc. (MCRB)Personal wealth note: Equibles reports source-backed professional activity and disclosed compensation; it does not estimate personal net worth.
Marella Thorell is recorded as CFO, CEO and Chief Accounting Officer at Seres Therapeutics, Inc. (MCRB). Marella Thorell was last confirmed as Board Member at GRI Bio, Inc. (GRI) in a filing dated April 27, 2022. Earlier roles on record: Chief Accounting Officer at Centessa Pharmaceuticals plc (CNTA) until July 31, 2022. Seres Therapeutics, Inc. reported in an 8-K filed March 2, 2026 that Marella Thorell was terminated as Co-President and Co-Chief Executive Officer, effective March 2, 2026. Seres Therapeutics, Inc. reported in an 8-K filed July 22, 2025 that Marella Thorell was appointed Co-Chief Executive Officer and Co-President, effective August 1, 2025. Seres Therapeutics, Inc. reported in an 8-K filed February 26, 2024 that Marella Thorell was appointed Executive Vice President and Chief Financial Officer, effective March 25, 2024. Marella Thorell has spoken on 7 earnings calls across 1 company, most recently for Seres Therapeutics, Inc. on November 5, 2025.
“As a result of the appointment of Mr. Kender as Interim Chief Executive Officer, Thomas J. DesRosier and Marella Thorell ceased serving as Co-Presidents and Co-Chief Executive Officers of the Company as of the Effective Date.”
“On July 17, 2025, the Company's Executive Vice President and Chief Financial Officer, Marella Thorell, and the Company's Executive Vice President and Chief Legal Officer, Thomas J. DesRosier, were appointed as the Co-Chief Executive Officers and Co-Presidents of the Company and designated as the Company's co-principal executive officers, in each case effective as of August 1, 2025.”
Summary generated from SEC filings and earnings-call records held by Equibles.
Recorded current and former roles; source labels appear when available.
2025-08-01–present
2024-03-25–present
Start not stated–present
Start not stated–2022-04-27
Last confirmed by a filing; no departure on record
Start not stated–2022-07-31
Recorded roles and call appearances connecting this person to public companies.
CFO, CEO, Chief Accounting Officer
2024-03-25–present
Other people whose current roles at this company are on record from its filings.
Earnings-call and investor-event appearances, plus filed executive appointments or departures, newest first.
