{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-043467","form_type":"8-K","ticker":"LYEL","cik":"0001806952","company_name":"Lyell Immunopharma, Inc.","filed_at":"2022-02-15T23:59:59+00:00","discovered_at":"2026-05-14T18:04:08.324978+00:00","generated_at":"2026-06-27T08:05:51.800368+00:00","sec_items":["5.02"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Lyell Immunopharma amends Officer Severance Plan, adds tiered benefits","bullets":["Amended severance plan: Tier I gets pro-rated bonus; Tier II & III get base salary and COBRA outside CIC.","During CIC Protection Period: Tier I receives target bonus; Tier III vesting acceleration increased to 100% (from 75%).","2022 base salaries effective Mar 1: Homans $600k, Hill $504k, Turner $473k.","2021 bonuses awarded: Homans $433,836; Klausner $222,007; Hill $346,775; Turner $295,925."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-043467","json":"https://secwatch.observer/filing/0001193125-22-043467.json","markdown":"https://secwatch.observer/filing/0001193125-22-043467.md","text":"https://secwatch.observer/filing/0001193125-22-043467.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1806952/000119312522043467/0001193125-22-043467-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1806952/000119312522043467/d221882d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T08:05:51.800368+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"}