{"schema_version":"secwatch.filing_event.v1","accession":"0000100885-25-000345","form_type":"8-K","ticker":"UNP","cik":"0000100885","company_name":"UNION PACIFIC CORP","filed_at":"2025-12-12T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.507269+00:00","generated_at":"2026-05-16T13:19:32.008845+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Union Pacific appoints W. Anthony Will to board effective Jan. 5, 2026","bullets":["Will is retiring as CEO and President of CF Industries on Jan. 4, 2026, then serving as senior advisor through March 15.","Will will serve on Union Pacific's Audit and Finance Committees.","He has served as CF Industries' CEO since 2014 and previously held leadership roles at Accenture and Sears.","Will also serves on the board of Olin Corporation (NYSE: OLN) since 2021."],"urls":{"canonical":"https://secwatch.observer/filing/0000100885-25-000345","json":"https://secwatch.observer/filing/0000100885-25-000345.json","markdown":"https://secwatch.observer/filing/0000100885-25-000345.md","text":"https://secwatch.observer/filing/0000100885-25-000345.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/100885/000010088525000345/0000100885-25-000345-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/100885/000010088525000345/unp-20251212.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:19:32.008845+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"}