| Drew John +8 co-filersDirector · 9 transactions | — | 2.31M†as of Feb 2011 | — | — | 1.20M |
| Trudeau RobertDirector · 4 transactions | — | 1.31M†as of May 2011 | 4.2K | — | 1.00M |
| McVey Richard MExecutive Chairman, Director · 822 transactions | — | 564.0K†as of Nov 2024 | 3.51M | — | 1.61M |
| Millet T KelleyPresident, Director · 54 transactions | — | 270.6Kas of Jun 2011 | 427.4K | 63.0K | 123.1K |
| Rucker James N BSee remarks · 22 transactions | — | 214.4Kas of Feb 2011 | 187.9K | — | 18.4K |
| McPherson Kevin MChief Revenue Officer · 130 transactions | — | 68.2K | 71.8K | — | 64.8K |
| Hernandez Carlos MauricioDirector · 25 transactions | — | 63.7K† | 26.1K | — | — |
| Concannon Christopher RChief Executive Officer, Director · 44 transactions | — | 53.6K | 81.6K | 4.3K | — |
| Casper Stephen PDirector · 53 transactions | — | 53.2K† | 67.1K | 170 | 17.6K |
| Baillie Ian NHead of MarketAxess Europe · 22 transactions | — | 40.6Kas of Dec 2006 | 50.0K | 12.0K | 32.0K |
| Hersch Ronald MDirector · 32 transactions | — | 35.0Kas of Feb 2017 | 61.0K | — | 27.0K |
| Rohatyn Nicolas SDirector · 6 transactions | — | 28.7Kas of Jul 2011 | 23.7K | — | — |
| Delise Antonio LGlobal Head of Corp. Dev. · 163 transactions | — | 27.5Kas of Jan 2022 | 191.6K | — | 159.4K |
| Berry DeanGroup COO & CEO, EMEA & APAC · 1 transaction | — | 26.0K | 26.0K | — | — |
| Thees Thomas MFormer Chief Operating Officer · 11 transactions | — | 23.2K†as of Nov 2006 | 30.0K | 16.0K | 10.8K |
| Gomach David GDirector · 62 transactions | — | 22.5K†as of Feb 2019 | 57.1K | 5.0K | 46.8K |
| Steinhardt JohnDirector · 32 transactions | — | 21.3Kas of Dec 2020 | 62.7K | — | 19.9K |
| Markowitz Jerome SDirector · 7 transactions | — | 17.3Kas of Jul 2011 | 23.7K | — | — |
| Burkhardt RogerDirector · 21 transactions | — | 17.2K†as of Jul 2012 | 31.2K | 6.0K | 20.0K |
| Drew John +5 co-filersDirector · 2 transactions | — | 13.3K†as of Aug 2010 | 9.1K | — | — |
| Lyski Wayne DDirector · 2 transactions | — | 12.5Kas of Aug 2007 | 7.5K | — | — |
| Begleiter Steven LDirector · 18 transactions | — | 12.1K | 13.4K | — | 1.0K |
| Pintoff ScottGeneral Counsel and Secretary · 55 transactions | — | 11.8K | 12.9K | — | 3.6K |
| Panchal Naineshkumar ShantilalChief Information Officer · 17 transactions | — | 11.3K | 17.3K | — | — |
| Brown-Hruska SharonDirector · 3 transactions | — | 10.3Kas of Jul 2012 | 10.3K | — | — |
| Portney Emily HopeDirector · 12 transactions | — | 10.3K† | 5.8K | — | — |
| Cruger William Frank Jr.Director · 14 transactions | — | 10.2K | 10.2K | — | — |
| Chwick JaneDirector · 15 transactions | — | 9.8K | 10.2K | — | — |
| Themelis NicholasChief Information Officer · 259 transactions | — | 8.7Kas of Mar 2022 | 634.5K | 8.0K | 497.2K |
| Fiszel Bieler IleneChief Financial Officer · 6 transactions | — | 8.7K | 9.7K | — | — |
| Roupie Christophe Pierre DanielHead of EMEA and APAC · 56 transactions | — | 8.2Kas of May 2025 | 25.5K | — | 9.2K |
| Sullivan James JosephDirector · 10 transactions | — | 8.0Kas of Sep 2018 | 8.5K | — | — |
| Prager Richard LeonDirector · 14 transactions | — | 7.9K†as of Jun 2023 | 1.9K | 2.0K | — |
| Ketchum Richard GDirector · 10 transactions | — | 6.1K | 6.1K | — | — |
| Altobello Nancy A.Director · 8 transactions | — | 5.2K | 5.2K | — | — |
| Gibson KourtneyDirector · 7 transactions | — | 4.5K | 4.5K | — | — |
| Webster Lesley DanielsDirector · 2 transactions | — | 3.2Kas of Aug 2014 | 3.2K | — | — |
| Hoornweg RobertoDirector · 3 transactions | — | 2.4K | 2.4K | — | — |
| Schiciano Kenneth TDirector · 2 transactions | — | 1.9K | 1.6K | — | — |
| Mirwani Nitin AChief Accounting Officer · 1 transaction | — | 1.8K | 1.8K | — | — |
| Gerosa Christopher N.Chief Financial Officer · 13 transactions | — | 1.8Kas of Jan 2024 | 1.0K | — | — |
| Cifu Douglas ADirector · 2 transactions | — | 1.6K | 1.6K | — | — |
| Gmelich Justin GeraldDirector · 4 transactions | — | 1.2Kas of Jun 2022 | 1.2K | — | — |
| Cianciulli Michael R.Head of Ext Rep & Comp Accting · 7 transactions | — | 1.2Kas of Apr 2025 | 1.1K | — | — |
| Li Xiaojia CharlesDirector · 2 transactions | — | 768as of Jun 2022 | 768 | — | — |
| Quan WilliamChief Technology Officer · 1 transaction | — | 218 | 218 | — | — |