0001012975-17-000445.txt : 20170518 0001012975-17-000445.hdr.sgml : 20170518 20170518160809 ACCESSION NUMBER: 0001012975-17-000445 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20170517 FILED AS OF DATE: 20170518 DATE AS OF CHANGE: 20170518 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 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Casper Stephen P CENTRAL INDEX KEY: 0001296969 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 17854999 MAIL ADDRESS: STREET 1: C/O CHARTER ATLANTIC CORPORATION STREET 2: 200 PARK AVENUE CITY: NEW YORK STATE: NY ZIP: 10166 4 1 edgar.xml PRIMARY DOCUMENT X0306 4 2017-05-17 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 2017-05-17 4 M 0 2500 16.99 A 50464 D Common Stock, par value $0.003 per share 2017-05-17 4 S 0 230 184.70 D 50234 D Employee Stock Option (right to buy) 16.99 2017-05-17 4 M 0 2500 0 D 2017-08-03 Common Stock 2500 0 D The employee stock option was fully exercisable. /s/ Ori Solomon, as Attorney-in-Fact for Stephen P. Casper 2017-05-18