{"schema_version":"secwatch.filing_event.v1","accession":"0000100885-25-000252","form_type":"8-K","ticker":"UNP","cik":"0000100885","company_name":"UNION PACIFIC CORP","filed_at":"2025-07-24T23:59:59+00:00","discovered_at":"2026-05-14T18:02:43.119698+00:00","generated_at":"2026-05-18T01:51:13.880467+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Union Pacific and Norfolk Southern confirm advanced merger discussions","bullets":["Union Pacific (UNP) and Norfolk Southern (NSC) disclosed advanced talks for a potential business combination on July 24, 2025.","No assurance a transaction will be reached; terms and conditions not disclosed.","Companies will not provide further updates unless disclosure becomes required or appropriate."],"urls":{"canonical":"https://secwatch.observer/filing/0000100885-25-000252","json":"https://secwatch.observer/filing/0000100885-25-000252.json","markdown":"https://secwatch.observer/filing/0000100885-25-000252.md","text":"https://secwatch.observer/filing/0000100885-25-000252.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/100885/000010088525000252/0000100885-25-000252-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/100885/000010088525000252/unp-20250724.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T01:51:13.880467+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"}