{"filing":{"accession_number":"0001104659-26-085991","cik":"0000016868","ticker":"CNI","company_name":"CANADIAN NATIONAL RAILWAY CO","form":"6-K","filing_date":"2026-07-22","report_date":null,"primary_document":"tm2621143d2_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/16868/000110465926085991/tm2621143d2_6k.htm"},"events":[{"id":19721,"run_id":17747,"accession_number":"0001104659-26-085991","anchor_item_number":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"CN announced a binding Memorandum of Understanding with Union Pacific establishing a framework for CN to secure competitive access and acquire assets (Norfolk Southern's ownership interests in KCT and TRRA) in connection with Union Pacific's proposed merger with Norfolk Southern. This settlement agreement materially expands CN's presence and operating rights in the Midwest and is contingent on STB approval and merger closing, constituting a material acquisition activity tied to a third-party M\u0026A transaction.","company_name":"CANADIAN NATIONAL RAILWAY CO","ticker":"CNI","filing_date":"2026-07-22","form":"6-K","submitted_at":null,"items":null}],"classifications":[{"id":18897,"accession_number":"0001104659-26-085991","item_number":null,"item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"CN announced a binding Memorandum of Understanding with Union Pacific establishing a framework for CN to secure competitive access and acquire assets (Norfolk Southern's ownership interests in KCT and TRRA) in connection with Union Pacific's proposed merger with Norfolk Southern. This settlement agreement materially expands CN's presence and operating rights in the Midwest and is contingent on STB approval and merger closing, constituting a material acquisition activity tied to a third-party M\u0026A transaction.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-23T10:06:35.974612+00:00","company_name":"CANADIAN NATIONAL RAILWAY CO","ticker":"CNI","filing_date":"2026-07-22"}]}