0000950170-24-016512.txt : 20240216 0000950170-24-016512.hdr.sgml : 20240216 20240216170022 ACCESSION NUMBER: 0000950170-24-016512 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240215 FILED AS OF DATE: 20240216 DATE AS OF CHANGE: 20240216 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cianciulli Michael R. CENTRAL INDEX KEY: 0002007722 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34091 FILM NUMBER: 24649266 MAIL ADDRESS: STREET 1: 55 HUDSON YARDS STREET 2: 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] ORGANIZATION NAME: 02 Finance 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 ownership.xml 4 X0508 4 2024-02-15 0001278021 MARKETAXESS HOLDINGS INC MKTX 0002007722 Cianciulli Michael R. C/O MARKETAXESS HOLDINGS INC. 55 HUDSON YARDS, 15TH FLOOR NEW YORK NY 10001 false true false false Head of External Reporting false Common Stock, par value $0.003 per share 2024-02-15 4 A false 281 0 A 445 D Common Stock, par value $0.003 per share 2024-02-15 4 A false 225 0 A 670 D Common Stock, par value $0.003 per share 2024-02-15 4 F false 13 216.21 D 657 D Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan. The restricted stock units shall vest 34% on February 15, 2025, 33% on February 15, 2026, and 33% on February 15, 2027. Includes 32 shares of the issuer's common stock acquired under the MarketAxess Holdings Inc. 2022 Employee Stock Purchase Plan on February 15, 2024. Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan. The restricted stock units shall vest 25% on February 15, 2025, 25% on February 15, 2026, 25% on February 15, 2027, and 25% on February 15, 2028. Represents the surrender of shares to the Company to satisfy the reporting owner's tax withholding obligation upon the vesting of restricted stock units previously granted to the reporting owner. /s/ Jason Edelstein, as Attorney-in-Fact for Michael R. Cianciulli 2024-02-16