{"schema_version":"secwatch.filing_event.v1","accession":"0000707549-22-000113","form_type":"8-K","ticker":"LRCX","cik":"0000707549","company_name":"LAM RESEARCH CORP","filed_at":"2022-09-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:57.956459+00:00","generated_at":"2026-06-23T08:56:24.119527+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Director Catherine Lego to retire from Lam Research board effective Nov 7, 2022","bullets":["Catherine P. Lego notified Lam Research of her retirement from the Board on September 14, 2022.","Retirement effective November 7, 2022, prior to the company's 2022 annual meeting.","No replacement director has been announced in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0000707549-22-000113","json":"https://secwatch.observer/filing/0000707549-22-000113.json","markdown":"https://secwatch.observer/filing/0000707549-22-000113.md","text":"https://secwatch.observer/filing/0000707549-22-000113.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/707549/000070754922000113/0000707549-22-000113-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/707549/000070754922000113/lrcx-20220914.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T08:56:24.119527+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":"bf4f0fd1c1","claim":"Catherine P. Lego departed as member of the board of directors at LAM RESEARCH CORP.","evidence_excerpt":"On September 14, 2022, Catherine P. Lego, a member of the board of directors (the “Board”) of Lam Research Corporation (the “Company”), notified the Company that she will be retiring from the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/707549/000070754922000113/0000707549-22-000113-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retiring"},{"label":"Role","value":"member of the board of directors"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}