0001209191-23-056236.txt : 20231121 0001209191-23-056236.hdr.sgml : 20231121 20231121161525 ACCESSION NUMBER: 0001209191-23-056236 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231120 FILED AS OF DATE: 20231121 DATE AS OF CHANGE: 20231121 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HERNANDEZ CARLOS MAURICIO CENTRAL INDEX KEY: 0001350131 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 231428300 MAIL ADDRESS: STREET 1: 270 PARK AVENUE STREET 2: 5TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10020 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MARKETAXESS HOLDINGS INC CENTRAL INDEX KEY: 0001278021 STANDARD INDUSTRIAL CLASSIFICATION: SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211] IRS NUMBER: 522230784 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 55 HUDSON YARDS, 15TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10001 BUSINESS PHONE: 212-831-6000 MAIL ADDRESS: STREET 1: 55 HUDSON YARDS, 15TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10001 FORMER COMPANY: FORMER CONFORMED NAME: MARKETAXESS HOLDING INC DATE OF NAME CHANGE: 20040129 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-11-20 0 0001278021 MARKETAXESS HOLDINGS INC MKTX 0001350131 HERNANDEZ CARLOS MAURICIO C/O MARKETAXESS HOLDINGS INC. 55 HUDSON YARDS, 15TH FLOOR NEW YORK NY 10001 1 0 0 0 0 Common Stock, par value $0.003 per share 2023-11-20 4 G 0 19946 0.00 D 493 D Common Stock, par value $0.003 per share 2023-11-20 4 G 0 19946 0.00 A 19946 I By GRAT /s/ Jason Edelstein, as Attorney-in-Fact for Carlos M. Hernandez 2023-11-21