{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-021345","form_type":"8-K","ticker":"MCRB","cik":"0001609809","company_name":"Seres Therapeutics, Inc.","filed_at":"2025-02-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:04.182580+00:00","generated_at":"2026-05-27T01:40:02.111397+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Seres Therapeutics appoints Hans-Juergen Woerle, M.D. to board, designated by Nestlé","bullets":["Board expanded to nine directors; Woerle appointed as Class III director effective Feb 4, 2025.","Woerle is Chief Medical Officer and Chief Scientific Officer at Nestlé Health Science since Nov 2018.","Designated by Nestlé under Securities Purchase Agreement requiring Nestlé to hold ≥10% of shares.","Initial option grant of 120k shares at $0.8056 strike, vesting over 4 years; annual retainer $45k plus $7.5k for committee service.","Woerle also serves on Enterome SA board and previously Cerecin Inc. board."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-021345","json":"https://secwatch.observer/filing/0001193125-25-021345.json","markdown":"https://secwatch.observer/filing/0001193125-25-021345.md","text":"https://secwatch.observer/filing/0001193125-25-021345.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1609809/000119312525021345/0001193125-25-021345-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1609809/000119312525021345/d890486d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T01:40:02.111397+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"a2723be98f","claim":"Hans-Juergen Woerle, M.D. was appointed as Class III director at Seres Therapeutics, Inc..","evidence_excerpt":"appointed Hans-Juergen Woerle, M.D., as a Class III director of the Company, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1609809/000119312525021345/0001193125-25-021345-index.htm","confidence":0.95}],"comparable_filings":[{"accession":"0001850902-26-000011","ticker":"TKNO","company_name":"Alpha Teknova, Inc.","filed_at":"2026-06-01T21:22:10+00:00","headline":"Alpha Teknova director Irene Davis to retire; board reduced from 8 to 7; shareholder votes approved nominees and auditor","event_type":"leadership","sec_items":["5.02","5.07","9.01"],"materiality_score":0.4,"calibrated_materiality_score":0.4,"match_reasons":["same fact type: executive_change","same SEC item: 5.02","same event type: leadership","similar materiality"],"urls":{"canonical":"https://secwatch.observer/filing/0001850902-26-000011","json":"https://secwatch.observer/filing/0001850902-26-000011.json","markdown":"https://secwatch.observer/filing/0001850902-26-000011.md","edgar_index":"https://www.sec.gov/Archives/edgar/data/1850902/000185090226000011/0001850902-26-000011-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1850902/000185090226000011/tkno-20260527.htm"},"side_by_side_evidence":{"fact_type":"executive_change","source_excerpt":"appointed Hans-Juergen Woerle, M.D., as a Class III director of the Company, effective immediately.","source_evidence_url":"https://www.sec.gov/Archives/edgar/data/1609809/000119312525021345/0001193125-25-021345-index.htm","comparable_excerpt":"On May 27, 2026, Irene Davis, a member of the Board of Directors (the “Board”) of Alpha Teknova, Inc. 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