{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-181672","form_type":"8-K","ticker":"MKTX","cik":"0001278021","company_name":"MARKETAXESS HOLDINGS INC","filed_at":"2024-07-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:12.446535+00:00","generated_at":"2026-05-31T18:58:12.020818+00:00","sec_items":["5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"MarketAxess amends bylaws; 25%+ stockholders can call special meetings","bullets":["Stockholders owning combined 25% or more of outstanding common stock now have right to call special meetings.","Advance notice requirements for director nominations and stockholder proposals modernized, including universal proxy rule compliance.","Procedural rules added for pre-existing stockholder right to act by written consent.","Officer duties clarified, indemnification provisions updated, and notice/meeting provisions allow electronic notice and remote meetings.","Board approved amended and restated bylaws effective July 17, 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-181672","json":"https://secwatch.observer/filing/0001193125-24-181672.json","markdown":"https://secwatch.observer/filing/0001193125-24-181672.md","text":"https://secwatch.observer/filing/0001193125-24-181672.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1278021/000119312524181672/0001193125-24-181672-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1278021/000119312524181672/d744954d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T18:58:12.020818+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}