{"filing":{"accession_number":"0001193125-26-327250","cik":"0001009001","ticker":"CCJ","company_name":"CAMECO CORP","form":"6-K","filing_date":"2026-07-31","report_date":"2026-07-31","primary_document":"d307413d6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1009001/000119312526327250/d307413d6k.htm"},"events":[{"id":22337,"run_id":20199,"accession_number":"0001193125-26-327250","anchor_item_number":"EX-99.1","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"Cameco announced that Westinghouse Electric Company (jointly owned by Cameco and Brookfield Renewable Partners) has confidentially submitted a draft S-1 registration statement for a proposed initial public offering. This represents a material change of control or disposition event — the potential public offering of a significant subsidiary would materially affect Cameco's ownership structure and capital position. While the IPO is still in draft stage and subject to market conditions, the confidential submission of the S-1 constitutes a material step toward a significant corporate transaction that would affect investor assessment of the registrant's assets and ownership.","company_name":"CAMECO CORP","ticker":"CCJ","filing_date":"2026-07-31","form":"6-K","submitted_at":null,"items":[{"id":22256,"accession_number":"0001193125-26-327250","item_number":"EX-99.1","item_title":"d307413dex991.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Cameco announced that Westinghouse Electric Company (jointly owned by Cameco and Brookfield Renewable Partners) has confidentially submitted a draft S-1 registration statement for a proposed initial public offering. This represents a material change of control or disposition event — the potential public offering of a significant subsidiary would materially affect Cameco's ownership structure and capital position. While the IPO is still in draft stage and subject to market conditions, the confidential submission of the S-1 constitutes a material step toward a significant corporate transaction that would affect investor assessment of the registrant's assets and ownership.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:04:21.648587+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":22256,"accession_number":"0001193125-26-327250","item_number":"EX-99.1","item_title":"d307413dex991.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Cameco announced that Westinghouse Electric Company (jointly owned by Cameco and Brookfield Renewable Partners) has confidentially submitted a draft S-1 registration statement for a proposed initial public offering. This represents a material change of control or disposition event — the potential public offering of a significant subsidiary would materially affect Cameco's ownership structure and capital position. While the IPO is still in draft stage and subject to market conditions, the confidential submission of the S-1 constitutes a material step toward a significant corporate transaction that would affect investor assessment of the registrant's assets and ownership.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:04:21.648587+00:00","company_name":"CAMECO CORP","ticker":"CCJ","filing_date":"2026-07-31"}]}