0001209191-21-062071.txt : 20211029 0001209191-21-062071.hdr.sgml : 20211029 20211029161519 ACCESSION NUMBER: 0001209191-21-062071 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211029 FILED AS OF DATE: 20211029 DATE AS OF CHANGE: 20211029 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Prager Richard Leon CENTRAL INDEX KEY: 0001781504 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 211363406 MAIL ADDRESS: STREET 1: C/O MARKETAXESS HOLDINGS INC. STREET 2: 55 HUDSON YARDS, 15TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10001 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 X0306 4 2021-10-29 0 0001278021 MARKETAXESS HOLDINGS INC MKTX 0001781504 Prager Richard Leon C/O MARKETAXESS HOLDINGS INC. 55 HUDSON YARDS, 15TH FLOOR NEW YORK NY 10001 1 0 0 0 Common Stock, par value $0.003 per share 2021-10-29 5 G 0 E 611 0.00 A 1149 D Common Stock, par value $0.003 per share 2021-10-29 5 G 0 E 611 0.00 D 677 I By GRAT /s/ Jason Edelstein, as Attorney-in-Fact for Richard L. Prager 2021-10-29