{"filing":{"accession_number":"0001104659-26-072831","cik":"0002092446","ticker":"AVAT","company_name":"Avalanche Treasury Corp","form":"8-K","filing_date":"2026-06-11","report_date":null,"primary_document":"tm2615904d6_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/2092446/000110465926072831/tm2615904d6_8k.htm"},"events":[{"id":5282,"run_id":4630,"accession_number":"0001104659-26-072831","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"The filing announces the closing of a previously announced business combination between Mountain Lake Acquisition Corp. (MLAC) and Avalanche Treasury Corporation, pursuant to a business combination agreement dated October 1, 2025 (as amended). This is a material M\u0026A event involving completion of a merger/change of control transaction, which directly affects the registrant's corporate structure and is highly material to investors.","company_name":"Avalanche Treasury Corp","ticker":"AVAT","filing_date":"2026-06-11","form":"8-K","submitted_at":null,"items":[{"id":6191,"accession_number":"0001104659-26-072831","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The filing announces the closing of a previously announced business combination between Mountain Lake Acquisition Corp. (MLAC) and Avalanche Treasury Corporation, pursuant to a business combination agreement dated October 1, 2025 (as amended). This is a material M\u0026A event involving completion of a merger/change of control transaction, which directly affects the registrant's corporate structure and is highly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T18:02:05.975787+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":6191,"accession_number":"0001104659-26-072831","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The filing announces the closing of a previously announced business combination between Mountain Lake Acquisition Corp. (MLAC) and Avalanche Treasury Corporation, pursuant to a business combination agreement dated October 1, 2025 (as amended). This is a material M\u0026A event involving completion of a merger/change of control transaction, which directly affects the registrant's corporate structure and is highly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T18:02:05.975787+00:00","company_name":"Avalanche Treasury Corp","ticker":"AVAT","filing_date":"2026-06-11"}]}