{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-123670","form_type":"8-K","ticker":"MKTX","cik":"0001278021","company_name":"MARKETAXESS HOLDINGS INC","filed_at":"2025-05-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.820710+00:00","generated_at":"2026-05-20T22:14:44.290755+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"MarketAxess appoints Dean Berry as Group COO and CEO of EMEA & APAC","bullets":["Dean Berry, formerly LSEG Group Head of Workflows, to join in Q4 2025.","He will oversee global operations, risk, product, tech, and EMEA/APAC businesses.","Base salary GBP £560k; target cash incentive GBP £840k; equity target GBP £1.8M.","Receives GBP £500k cash lost-opportunity award and GBP £1.563M equity lost-opportunity award.","Also receives GBP £500k cash make-whole and GBP £3.437M equity make-whole for forfeited unvested equity."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-123670","json":"https://secwatch.observer/filing/0001193125-25-123670.json","markdown":"https://secwatch.observer/filing/0001193125-25-123670.md","text":"https://secwatch.observer/filing/0001193125-25-123670.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1278021/000119312525123670/0001193125-25-123670-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1278021/000119312525123670/d942871d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T22:14:44.290755+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"852ba1d14f","claim":"Dean Berry was appointed as Group Chief Operating Officer and Chief Executive Officer, EMEA & APAC at MARKETAXESS HOLDINGS INC.","evidence_excerpt":"On May 21, 2025, MarketAxess Holdings Inc. (the “Company”) announced that it had appointed Dean Berry as its Group Chief Operating Officer and Chief Executive Officer, EMEA & APAC, effective as of his start date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1278021/000119312525123670/0001193125-25-123670-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Group Chief Operating Officer and Chief Executive Officer, EMEA & APAC"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}