0001012975-19-000129.txt : 20190206 0001012975-19-000129.hdr.sgml : 20190206 20190206161517 ACCESSION NUMBER: 0001012975-19-000129 CONFORMED SUBMISSION TYPE: 5 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181231 FILED AS OF DATE: 20190206 DATE AS OF CHANGE: 20190206 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Casper Stephen P CENTRAL INDEX KEY: 0001296969 FILING VALUES: FORM TYPE: 5 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 19571735 MAIL ADDRESS: STREET 1: C/O CHARTER ATLANTIC CORPORATION STREET 2: 200 PARK AVENUE CITY: NEW YORK STATE: NY ZIP: 10166 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: 299 PARK AVENUE, 10TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10171 BUSINESS PHONE: 212-831-6000 MAIL ADDRESS: STREET 1: 299 PARK AVENUE, 10TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10171 FORMER COMPANY: FORMER CONFORMED NAME: MARKETAXESS HOLDING INC DATE OF NAME CHANGE: 20040129 5 1 edgar.xml PRIMARY DOCUMENT X0306 5 2018-12-31 0 0 0001278021 MARKETAXESS HOLDINGS INC MKTX 0001296969 Casper Stephen P C/O MARKETAXESS HOLDINGS INC. 299 PARK AVENUE NEW YORK NY 10171 1 0 0 0 Common Stock, par value $0.003 per share 2018-12-12 5 G 0 43808 0 D 9970 D Common Stock, par value $0.003 per share 2018-12-12 5 G 0 43808 0 A 43808 I By family trust /s/ Stephen P. Casper 2019-02-06