{"filing":{"accession_number":"0001171843-26-006780","cik":"0001144800","ticker":"TACPF","company_name":"TRANSALTA CORP","form":"6-K","filing_date":"2026-10-22","report_date":"2026-10-22","primary_document":"f6k_102226.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1144800/000117184326006780/f6k_102226.htm"},"events":[{"id":37276,"run_id":34366,"accession_number":"0001171843-26-006780","anchor_item_number":"EX-99.1","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"The press release discloses two material M\u0026A transactions: (1) the completed sale of a 49% minority interest in TransAlta's Oklahoma wind portfolio (500 MW across three facilities) to Ares Infrastructure for US$305 million in cash proceeds, and (2) the completed acquisition of Mountain Peak Power LLC and Canyon Peak Power LLC from Blackstone for US$1.0 billion (plus US$750 million assumed debt), adding 318 MW of natural gas-fired peaking capacity near Denver. Both transactions are explicitly described as \"closed\" or \"completed,\" representing significant capital deployment and portfolio rotation activity material to investors assessing the company's strategic direction and financial position.","company_name":"TRANSALTA CORP","ticker":"TACPF","filing_date":"2026-10-22","form":"6-K","submitted_at":null,"items":[{"id":41934,"accession_number":"0001171843-26-006780","item_number":"EX-99.1","item_title":"exh_991.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The press release discloses two material M\u0026A transactions: (1) the completed sale of a 49% minority interest in TransAlta's Oklahoma wind portfolio (500 MW across three facilities) to Ares Infrastructure for US$305 million in cash proceeds, and (2) the completed acquisition of Mountain Peak Power LLC and Canyon Peak Power LLC from Blackstone for US$1.0 billion (plus US$750 million assumed debt), adding 318 MW of natural gas-fired peaking capacity near Denver. Both transactions are explicitly described as \"closed\" or \"completed,\" representing significant capital deployment and portfolio rotation activity material to investors assessing the company's strategic direction and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-10-22T20:25:47.939675+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":41934,"accession_number":"0001171843-26-006780","item_number":"EX-99.1","item_title":"exh_991.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The press release discloses two material M\u0026A transactions: (1) the completed sale of a 49% minority interest in TransAlta's Oklahoma wind portfolio (500 MW across three facilities) to Ares Infrastructure for US$305 million in cash proceeds, and (2) the completed acquisition of Mountain Peak Power LLC and Canyon Peak Power LLC from Blackstone for US$1.0 billion (plus US$750 million assumed debt), adding 318 MW of natural gas-fired peaking capacity near Denver. Both transactions are explicitly described as \"closed\" or \"completed,\" representing significant capital deployment and portfolio rotation activity material to investors assessing the company's strategic direction and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-10-22T20:25:47.939675+00:00","company_name":"TRANSALTA CORP","ticker":"TACPF","filing_date":"2026-10-22"}]}