{"filing":{"accession_number":"0001104659-26-074683","cik":"0001307954","ticker":"HUN","company_name":"Huntsman CORP","form":"8-K","filing_date":"2026-06-16","report_date":null,"primary_document":"tm2618028d1_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1307954/000110465926074683/tm2618028d1_8k.htm"},"events":[{"id":11390,"run_id":9999,"accession_number":"0001104659-26-074683","anchor_item_number":"1.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.97,"summary":"Huntsman Corporation entered into an Agreement and Plan of Merger with Olin Corporation on June 15, 2026, providing for an all-stock merger of equals transaction at an exchange ratio of 0.5476 shares of Olin Common Stock per Huntsman share. The filing also discloses a concurrent voting and support agreement executed by Peter Huntsman and affiliated entities to vote their shares in favor of the merger and against competing proposals.","company_name":"Huntsman CORP","ticker":"HUN","filing_date":"2026-06-16","form":"8-K","submitted_at":null,"items":[{"id":7969,"accession_number":"0001104659-26-074683","item_number":"1.01","item_title":"Entry into a Material Definitive","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Huntsman Corporation entered into an Agreement and Plan of Merger with Olin Corporation on June 15, 2026, providing for an all-stock merger of equals transaction. The filing discloses the material definitive agreement establishing the merger structure, exchange ratio (0.5476 shares of Olin Common Stock per Huntsman share), governance arrangements, and closing conditions. This is a material acquisition/change of control transaction requiring Item 1.01 disclosure.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T21:11:08.837528+00:00","company_name":"","ticker":null,"filing_date":""},{"id":7970,"accession_number":"0001104659-26-074683","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The section discloses a voting and support agreement executed concurrently with a Merger Agreement between Olin, its merger subsidiaries, and Huntsman on June 15, 2026. Peter Huntsman and affiliated entities agreed to vote their shares in favor of the merger and against competing proposals. This is a material M\u0026A activity disclosure—the voting agreement is ancillary to the proposed merger transaction between Olin and Huntsman, which would constitute a change of control or material acquisition.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T21:11:08.837528+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":7969,"accession_number":"0001104659-26-074683","item_number":"1.01","item_title":"Entry into a Material Definitive","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Huntsman Corporation entered into an Agreement and Plan of Merger with Olin Corporation on June 15, 2026, providing for an all-stock merger of equals transaction. The filing discloses the material definitive agreement establishing the merger structure, exchange ratio (0.5476 shares of Olin Common Stock per Huntsman share), governance arrangements, and closing conditions. This is a material acquisition/change of control transaction requiring Item 1.01 disclosure.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T21:11:08.837528+00:00","company_name":"Huntsman CORP","ticker":"HUN","filing_date":"2026-06-16"},{"id":7970,"accession_number":"0001104659-26-074683","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The section discloses a voting and support agreement executed concurrently with a Merger Agreement between Olin, its merger subsidiaries, and Huntsman on June 15, 2026. Peter Huntsman and affiliated entities agreed to vote their shares in favor of the merger and against competing proposals. This is a material M\u0026A activity disclosure—the voting agreement is ancillary to the proposed merger transaction between Olin and Huntsman, which would constitute a change of control or material acquisition.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T21:11:08.837528+00:00","company_name":"Huntsman CORP","ticker":"HUN","filing_date":"2026-06-16"}]}