0001209191-21-051123.txt : 20210812 0001209191-21-051123.hdr.sgml : 20210812 20210812163908 ACCESSION NUMBER: 0001209191-21-051123 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210811 FILED AS OF DATE: 20210812 DATE AS OF CHANGE: 20210812 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Themelis Nicholas CENTRAL INDEX KEY: 0001296468 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 211168231 MAIL ADDRESS: STREET 1: C/O MARKETAXESS HOLDINGS INC. STREET 2: 140 BROADWAY, 42ND FLOOR CITY: NEW YORK STATE: NY ZIP: 10005 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 2021-08-11 0 0001278021 MARKETAXESS HOLDINGS INC MKTX 0001296468 Themelis Nicholas C/O MARKETAXESS HOLDINGS INC. 55 HUDSON YARDS, 15TH FLOOR NEW YORK NY 10001 0 1 0 0 Chief Information Officer Common Stock, par value $0.003 per share 2021-08-11 4 M 0 6433 103.30 A 20020 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 1179 460.06 D 18841 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 1732 460.70 D 17109 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 654 462.13 D 16455 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 1266 462.93 D 15189 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 502 464.71 D 14687 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 90 465.64 D 14597 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 347 466.45 D 14250 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 376 468.22 D 13874 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 135 468.88 D 13739 D Common Stock, par value $0.003 per share 2021-08-11 4 S 0 152 470.46 D 13587 D Stock Option (right to buy) 103.30 2021-08-11 4 M 0 6433 0.00 D 2022-01-31 Common Stock 6433 0 D The transactions were executed in multiple trades at prices ranging from $459.49 to $460.45. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $460.51 to $461.45. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $461.73 to $462.69. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $462.78 to $463.71. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $464.24 to $465.22. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $465.25 to $466.00. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $466.26 to $466.83. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $467.57 to $468.55. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $468.86 to $468.93. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transactions were executed in multiple trades at prices ranging from $470.35 to $470.72. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The stock options were fully exercisable. /s/ Jason Edelstein, as Attorney-in-Fact for Nicholas Themelis 2021-08-12