{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-095295","form_type":"8-K","ticker":"MKTX","cik":"0001278021","company_name":"MARKETAXESS HOLDINGS INC","filed_at":"2023-04-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:38.248228+00:00","generated_at":"2026-06-17T04:29:14.502110+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"MarketAxess director Justin Gmelich resigns effective April 13 for new employment","bullets":["Justin Gmelich notified MarketAxess on April 5, 2023 of his resignation from the Board.","Resignation effective April 13, 2023 due to commencement of a new employment opportunity.","Company states the resignation was not the result of any disagreement with MarketAxess."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-095295","json":"https://secwatch.observer/filing/0001193125-23-095295.json","markdown":"https://secwatch.observer/filing/0001193125-23-095295.md","text":"https://secwatch.observer/filing/0001193125-23-095295.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1278021/000119312523095295/0001193125-23-095295-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1278021/000119312523095295/d445177d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T04:29:14.502110+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":"e82dfcfbc8","claim":"Justin Gmelich resigned as Director at MARKETAXESS HOLDINGS INC.","evidence_excerpt":"On April 5, 2023, Justin Gmelich notified MarketAxess Holdings Inc. (the “Company”) that he will resign from the Board of Directors, effective April 13, 2023, in connection with the commencement of a new employment opportunity.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1278021/000119312523095295/0001193125-23-095295-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}