{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-161594","form_type":"8-K","ticker":"LYEL","cik":"0001806952","company_name":"Lyell Immunopharma, Inc.","filed_at":"2023-06-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:40.695354+00:00","generated_at":"2026-06-14T06:45:48.483634+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Lyell Immunopharma CLO Rahsaan Thompson resigns, effective June 16, 2023","bullets":["Rahsaan Thompson to step down as Chief Legal Officer on June 16, 2023; no disagreement cited.","Will provide transition services as independent contractor through Sep 29, 2023, unless earlier terminated.","Severance includes $565,233 cash (base salary plus prorated bonus) paid over 12 months, COBRA subsidy up to 12 months.","Signing bonus repayment of $150,000 waived; stock options continue vesting until end date, exercise period extended to June 30, 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-161594","json":"https://secwatch.observer/filing/0001193125-23-161594.json","markdown":"https://secwatch.observer/filing/0001193125-23-161594.md","text":"https://secwatch.observer/filing/0001193125-23-161594.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1806952/000119312523161594/0001193125-23-161594-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1806952/000119312523161594/d506460d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-14T06:45:48.483634+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}