{"filing":{"accession_number":"0001193125-26-428689","cik":"0001278021","ticker":"MKTX","company_name":"MARKETAXESS HOLDINGS INC","form":"8-K","filing_date":"2026-10-22","report_date":"2026-10-21","primary_document":"d157425d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1278021/000119312526428689/d157425d8k.htm"},"events":[{"id":37150,"run_id":34250,"accession_number":"0001193125-26-428689","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.98,"summary":"The filing discloses that on October 21, 2026, the Department of Justice and Federal Trade Commission granted early termination of the HSR Act waiting period, satisfying a key closing condition for MarketAxess' merger with Intercontinental Exchange. This represents material progress toward completion of a previously announced acquisition, with the registrant surviving as a wholly owned subsidiary of the acquirer. The disclosure is a direct update on M\u0026A activity status.","company_name":"MARKETAXESS HOLDINGS INC","ticker":"MKTX","filing_date":"2026-10-22","form":"8-K","submitted_at":null,"items":[{"id":41761,"accession_number":"0001193125-26-428689","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.98,"reasoning":"The filing discloses that on October 21, 2026, the Department of Justice and Federal Trade Commission granted early termination of the HSR Act waiting period, satisfying a key closing condition for MarketAxess' merger with Intercontinental Exchange. This represents material progress toward completion of a previously announced acquisition, with the registrant surviving as a wholly owned subsidiary of the acquirer. The disclosure is a direct update on M\u0026A activity status.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-22T17:22:36.738187+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":41761,"accession_number":"0001193125-26-428689","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.98,"reasoning":"The filing discloses that on October 21, 2026, the Department of Justice and Federal Trade Commission granted early termination of the HSR Act waiting period, satisfying a key closing condition for MarketAxess' merger with Intercontinental Exchange. This represents material progress toward completion of a previously announced acquisition, with the registrant surviving as a wholly owned subsidiary of the acquirer. The disclosure is a direct update on M\u0026A activity status.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-10-22T17:22:36.738187+00:00","company_name":"MARKETAXESS HOLDINGS INC","ticker":"MKTX","filing_date":"2026-10-22"}]}