{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-245591","form_type":"8-K","ticker":"NUE","cik":"0000073309","company_name":"NUCOR CORP","filed_at":"2022-09-15T23:59:59+00:00","discovered_at":"2026-05-14T18:03:58.049943+00:00","generated_at":"2026-06-23T09:33:31.073922+00:00","sec_items":["8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Nucor appoints CEO Leon Topalian as Chair of Board; Christopher Kearney named Lead Director","bullets":["President and CEO Leon J. Topalian assumes additional role of Chair of the Board, effective September 15, 2022.","Board member Christopher J. Kearney appointed Lead Independent Director; chosen unanimously by independent directors.","Former Non-Executive Chairman John H. Walker continues as a Board member."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-245591","json":"https://secwatch.observer/filing/0001193125-22-245591.json","markdown":"https://secwatch.observer/filing/0001193125-22-245591.md","text":"https://secwatch.observer/filing/0001193125-22-245591.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/73309/000119312522245591/0001193125-22-245591-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73309/000119312522245591/d358217d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T09:33:31.073922+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"}