{"schema_version":"secwatch.filing_event.v1","accession":"0000707549-24-000115","form_type":"8-K","ticker":"LRCX","cik":"0000707549","company_name":"LAM RESEARCH CORP","filed_at":"2024-09-18T23:59:59+00:00","discovered_at":"2026-05-14T18:03:15.650188+00:00","generated_at":"2026-05-31T04:06:38.288520+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Two Lam Research board members to step down Nov 4, not standing for reelection","bullets":["Directors Rick L. Tsai and Leslie F. Varon will leave the board on November 4, 2024.","They will not stand for reelection at the November 5, 2024 annual meeting.","No replacement directors have been announced in this filing."],"urls":{"canonical":"https://secwatch.observer/filing/0000707549-24-000115","json":"https://secwatch.observer/filing/0000707549-24-000115.json","markdown":"https://secwatch.observer/filing/0000707549-24-000115.md","text":"https://secwatch.observer/filing/0000707549-24-000115.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/707549/000070754924000115/0000707549-24-000115-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/707549/000070754924000115/lrcx-20240913.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T04:06:38.288520+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":"b3526b3f05","claim":"Rick L. Tsai departed as Director at LAM RESEARCH CORP.","evidence_excerpt":"On September 13, 2024, Lih Shyng (Rick L.) Tsai, Ph.D. and Leslie F. Varon, members of the board of directors (the “Board”) of Lam Research Corporation (the “Company”), each notified the Company that they will conclude their service as members of the Board on November 4, 2024, prior to the Company’s 2024 annual meeting of stockholders.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/707549/000070754924000115/0000707549-24-000115-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will conclude their service"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"c75404d3da","claim":"Leslie F. Varon departed as Director at LAM RESEARCH CORP.","evidence_excerpt":"On September 13, 2024, Lih Shyng (Rick L.) Tsai, Ph.D. and Leslie F. Varon, members of the board of directors (the “Board”) of Lam Research Corporation (the “Company”), each notified the Company that they will conclude their service as members of the Board on November 4, 2024, prior to the Company’s 2024 annual meeting of stockholders.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/707549/000070754924000115/0000707549-24-000115-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will conclude their service"},{"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"}