| 2021-08-10 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 1,300 0.0036% | $482.53 | $627,285 | -22.51% | |
| 2021-08-09 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 12,117 0.0323% | $484.74 | $5.87M | -25.11% | |
| 2021-03-15 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0527% | $518.80 | $10.38M | -17.63% | |
| 2020-12-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 41,000 0.1094% | $565.17 | $23.17M | -16.71% | |
| 2020-11-10 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 13,025 0.0346% | $521.14 | $6.79M | -8.3% | |
| 2020-11-09 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 28,975 0.0802% | $553.78 | $16.05M | -9.94% | |
| 2020-09-09 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 9,983 0.0268% | $459.71 | $4.59M | +11.24% | |
| 2020-09-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 32,017 0.0859% | $450.85 | $14.43M | +13.48% | |
| 2020-08-10 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 25,000 0.0676% | $487.62 | $12.19M | +5.71% | |
| 2020-05-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 25,000 0.0669% | $483.62 | $12.09M | +7.4% | |
| 2020-02-10 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 25,000 0.0666% | $339.25 | $8.48M | +47.53% | |
| 2019-11-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0542% | $348.56 | $6.97M | +31.05% | |
| 2019-08-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0536% | $350.07 | $7M | +6.55% | |
| 2019-05-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.054% | $281.14 | $5.62M | +25.78% | |
| 2019-02-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0541% | $220.94 | $4.42M | +55.92% | |
| 2018-11-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0539% | $205.38 | $4.11M | +38.26% | |
| 2018-10-30 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 11,640 0.0311% | $214.34 | $2.49M | +30.04% | |
| 2018-10-29 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 12,202 0.0331% | $209.63 | $2.56M | +34.7% | |
| 2018-08-08 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 20,000 0.0543% | $186.70 | $3.73M | +21.82% | |
| 2018-08-06 | Sale | MarketAxess Holdings Inc. MKTX | Chairman & CEO | 12,055 0.0325% | $189.03 | $2.28M | +19.63% |