{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-266101","form_type":"8-K","ticker":"LYEL","cik":"0001806952","company_name":"Lyell Immunopharma, Inc.","filed_at":"2024-11-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.716384+00:00","generated_at":"2026-05-29T18:00:34.338880+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Hans Bishop resigns from Lyell Immunopharma Board and Nominating Committee","bullets":["Hans Bishop resigned from the Board and Nominating Committee effective November 22, 2024.","Resignation is not the result of any disagreement or dispute with the Company.","No replacement has been announced; board composition changes accordingly."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-266101","json":"https://secwatch.observer/filing/0001193125-24-266101.json","markdown":"https://secwatch.observer/filing/0001193125-24-266101.md","text":"https://secwatch.observer/filing/0001193125-24-266101.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1806952/000119312524266101/0001193125-24-266101-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1806952/000119312524266101/d848587d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T18:00:34.338880+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":"8a1986545b","claim":"Hans Bishop resigned as Director at Lyell Immunopharma, Inc..","evidence_excerpt":"On November 22, 2024, Hans Bishop resigned as a member of the Board of Directors (the “Board”) and the Nominating and Corporate Governance Committee of the Board of Lyell Immunopharma, Inc. (the “Company”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1806952/000119312524266101/0001193125-24-266101-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}