{"filing":{"accession_number":"0000947484-26-000114","cik":"0000947484","ticker":"ACGLO","company_name":"ARCH CAPITAL GROUP LTD.","form":"8-K","filing_date":"2026-06-16","report_date":null,"primary_document":"acgl-20260615.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/947484/000094748426000114/acgl-20260615.htm"},"events":[{"id":11306,"run_id":9924,"accession_number":"0000947484-26-000114","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.75,"summary":"The filing discloses cash tender offers by Arch Capital's wholly-owned subsidiaries to repurchase outstanding senior notes totaling up to $417.9 million in principal amount. While technically a debt repurchase rather than a traditional M\u0026A transaction, tender offers for material amounts of debt securities constitute material capital structure activity that affects the registrant's financial position and obligations. The magnitude and specificity of the transaction (pricing announcement, increased maximum amount) indicate materiality to investors.","company_name":"ARCH CAPITAL GROUP LTD.","ticker":"ACGLO","filing_date":"2026-06-16","form":"8-K","submitted_at":null,"items":[{"id":7864,"accession_number":"0000947484-26-000114","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The filing discloses cash tender offers by Arch Capital's wholly-owned subsidiaries to repurchase outstanding senior notes totaling up to $417.9 million in principal amount. While technically a debt repurchase rather than a traditional M\u0026A transaction, tender offers for material amounts of debt securities constitute material capital structure activity that affects the registrant's financial position and obligations. The magnitude and specificity of the transaction (pricing announcement, increased maximum amount) indicate materiality to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T20:10:22.815759+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":7864,"accession_number":"0000947484-26-000114","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The filing discloses cash tender offers by Arch Capital's wholly-owned subsidiaries to repurchase outstanding senior notes totaling up to $417.9 million in principal amount. While technically a debt repurchase rather than a traditional M\u0026A transaction, tender offers for material amounts of debt securities constitute material capital structure activity that affects the registrant's financial position and obligations. The magnitude and specificity of the transaction (pricing announcement, increased maximum amount) indicate materiality to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T20:10:22.815759+00:00","company_name":"ARCH CAPITAL GROUP LTD.","ticker":"ACGLO","filing_date":"2026-06-16"}]}