{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-140337","form_type":"8-K","ticker":"NSC","cik":"0000702165","company_name":"NORFOLK SOUTHERN CORP","filed_at":"2025-06-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.055285+00:00","generated_at":"2026-05-19T09:30:56.074548+00:00","sec_items":["7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Norfolk Southern elects Richard H. Anderson as independent board chair, effective immediately","bullets":["Anderson succeeds Claude Mongeau, who resigned June 2, 2025 for personal reasons.","Anderson is former CEO of Delta Air Lines, Optum Health, and Amtrak; joined NSC board in May 2024.","Board size reduced from 13 to 12 directors following Mongeau's resignation.","Jack Huffard appointed chair of Compensation and Talent Management Committee."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-140337","json":"https://secwatch.observer/filing/0001193125-25-140337.json","markdown":"https://secwatch.observer/filing/0001193125-25-140337.md","text":"https://secwatch.observer/filing/0001193125-25-140337.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/702165/000119312525140337/0001193125-25-140337-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/702165/000119312525140337/d948297d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T09:30:56.074548+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"}