secwatch.observer — SEC 8-K summary ====================================== Issuer: Seres Therapeutics, Inc. (MCRB) CIK: 0001609809 Form: 8-K Filed at: 2026-06-01T20:30:55+00:00 Accession: 0001193125-26-251548 Event type: leadership Sentiment: neutral Materiality: 0.25 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Seres Therapeutics board member Hans-Juergen Woerle resigns, effective May 31, 2026 -------------------------------------------------------------------------------- - Dr. Woerle resigned from the board and all committees, effective May 31, 2026. - Departure is not due to any disagreement with Seres' operations, policies, or practices. - No replacement or additional board changes were announced. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1609809/000119312526251548/0001193125-26-251548-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1609809/000119312526251548/d100982d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-251548 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer