Insider Trading activities of Marketaxess Holdings Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Marketaxess Holdings Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Marketaxess Holdings Inc since year 2005. Table 2 shows the detailed insider transactions of Marketaxess Holdings Inc since 2005. The reporting company's ticker symbol is MKTX. The reporting company's CIK number is 1278021.
The total value of stock buying since 2005 is $1,006,853.
The total value of stock sales since 2005 is $163,794,481.
The total value of stock option exercises since 2005 is $13,810,172.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Marketaxess Holdings Inc (MKTX).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-11 0 $0 48,225 $8,568,430 13,225 $139,437
2017-10 0 $0 0 $0 50,000 $546,500
2017-08 0 $0 20,000 $3,992,220 0 $0
2017-07 0 $0 0 $0 76,035 $831,062
2017-06 0 $0 14,882 $2,998,496 14,882 $162,659
2017-05 0 $0 47,000 $8,876,781 50,000 $546,500
2017-02 0 $0 57,167 $10,806,242 15,468 $199,363
2017-01 0 $0 0 $0 7,412 $75,390
2016-10 0 $0 0 $0 2,500 $42,474
2016-08 0 $0 46,200 $7,570,117 0 $0
2016-05 0 $0 85,288 $10,924,323 94,540 $1,206,938
2016-03 0 $0 0 $0 24,240 $0
2016-02 0 $0 28,688 $3,210,061 32,000 $315,150
2015-12 0 $0 1,500 $168,598 95,419 $29,849
2015-11 0 $0 40,000 $3,955,720 0 $0
2015-08 0 $0 50,660 $4,919,259 15,000 $146,000
2015-05 0 $0 40,000 $3,427,603 4,000 $39,800
2015-03 0 $0 4,375 $373,026 5,000 $50,199
2015-02 0 $0 42,187 $3,407,010 10,000 $100,398
2015-01 0 $0 0 $0 25,835 $302,011
2014-12 0 $0 13,589 $929,100 11,500 $145,499
2014-11 0 $0 7,000 $459,641 9,538 $148,792
2014-10 0 $0 0 $0 30,460 $394,761
2014-09 0 $0 1,500 $89,218 0 $0
2014-08 0 $0 16,000 $915,927 5,000 $50,199
2014-07 0 $0 1,930 $110,108 10,000 $110,000
2014-04 0 $0 10,000 $541,415 10,000 $110,000
2013-11 0 $0 52,477 $3,645,766 52,477 $604,850
2013-10 0 $0 0 $0 30,000 $388,800
2013-07 0 $0 15,000 $780,925 15,000 $178,500
2013-06 0 $0 75,000 $3,375,988 0 $0
2013-05 0 $0 78,556 $3,494,258 0 $0
2013-03 0 $0 30,490 $1,198,993 0 $0
2013-02 0 $0 0 $0 12,500 $195,000
2012-12 0 $0 150,000 $4,875,111 100,000 $1,394,998
2012-06 0 $0 55,642 $1,682,372 37,462 $584,406
2012-05 0 $0 38,859 $1,246,640 1,000,000 $2,699,999
2012-03 0 $0 0 $0 7,037 $18,999
2011-12 0 $0 55,582 $1,592,921 30,000 $81,000
2011-11 0 $0 126,415 $3,657,964 183,123 $1,359,425
2011-05 170 $3,773 1,125,866 $26,061,293 0 $0
2011-03 0 $0 30,000 $664,540 0 $0
2011-02 0 $0 1,203,378 $24,865,399 0 $0
2010-11 0 $0 180,444 $3,359,393 126,885 $424,686
2010-05 6,000 $86,376 0 $0 0 $0
2010-02 0 $0 15,000 $227,537 0 $0
2009-08 1,000 $9,990 0 $0 0 $0
2008-11 25,000 $135,423 0 $0 35,176 $105,528
2008-03 50,000 $476,900 0 $0 0 $0
2007-11 0 $0 42,321 $657,254 0 $0
2007-10 0 $0 52,100 $774,541 0 $0
2007-09 0 $0 30,000 $421,740 0 $0
2007-07 0 $0 55,500 $1,065,060 0 $0
2006-12 0 $0 32,000 $448,524 30,000 $81,000
2006-11 0 $0 10,800 $132,934 0 $0
2006-05 27,000 $284,241 0 $0 0 $0
2006-03 0 $0 30,000 $358,950 0 $0
2006-02 0 $0 111,063 $1,428,740 0 $0
2006-01 0 $0 1,830 $21,255 0 $0
2005-11 0 $0 40,907 $491,497 0 $0
2005-10 0 $0 62,200 $744,223 0 $0
2005-09 0 $0 24,000 $277,368 0 $0
2005-08 1,000 $10,150 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Marketaxess Holdings Inc insiders (MKTX)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-11-16 Mcpherson Kevin M (Global Head of Sales) Sale 5,000 176.61 883,055
2017-11-16 Mcpherson Kevin M (Global Head of Sales) Option Ex 5,000 10.93 54,650
2017-11-14 Steinhardt John (Director) Sale 4,225 174.00 735,137
2017-11-14 Steinhardt John (Director) Option Ex 4,225 9.72 41,067
2017-11-08 Mcvey Richard M (Chairman & CEO) Sale 35,000 178.42 6,244,630
2017-11-02 Themelis Nicholas (Chief Information Officer) Sale 4,000 176.40 705,608
2017-11-02 Themelis Nicholas (Chief Information Officer) Option Ex 4,000 10.93 43,720
2017-10-30 Mcvey Richard M (Chairman & CEO) Option Ex 50,000 10.93 546,500
2017-08-08 Mcvey Richard M (Chairman & CEO) Sale 20,000 199.61 3,992,220
2017-07-31 Mcvey Richard M (Chairman & CEO) Option Ex 76,035 10.93 831,062
2017-06-12 Mcpherson Kevin M (Global Head of Sales) Sale 4,286 203.22 870,983
2017-06-12 Mcpherson Kevin M (Global Head of Sales) Option Ex 4,286 10.93 46,845
2017-06-09 Themelis Nicholas (Chief Information Officer) Sale 5,596 201.17 1,125,758
2017-06-09 Themelis Nicholas (Chief Information Officer) Option Ex 5,596 10.93 61,164
2017-06-08 Mcpherson Kevin M (Global Head of Sales) Sale 5,000 200.35 1,001,755
2017-06-08 Mcpherson Kevin M (Global Head of Sales) Option Ex 5,000 10.93 54,650
2017-05-08 Mcvey Richard M (Chairman & CEO) Sale 20,000 185.72 3,714,340
2017-05-02 Mcvey Richard M (Chairman & CEO) Sale 7,000 189.26 1,324,841
2017-05-02 Mcvey Richard M (Chairman & CEO) Option Ex 30,000 10.93 327,900
2017-05-01 Mcvey Richard M (Chairman & CEO) Sale 20,000 191.88 3,837,600
2017-05-01 Mcvey Richard M (Chairman & CEO) Option Ex 20,000 10.93 218,600
2017-02-13 Hersch Ronald M (Director) Sale 12,000 189.01 2,268,084
2017-02-13 Delise Antonio L (Chief Financial Officer) Sale 8,000 189.57 1,516,576
2017-02-09 Themelis Nicholas (Chief Information Officer) Sale 10,468 188.17 1,969,805
2017-02-09 Themelis Nicholas (Chief Information Officer) Option Ex 10,468 10.93 114,415
2017-02-09 Mcvey Richard M (Chairman & CEO) Sale 9,687 188.21 1,823,190
2017-02-08 Mcvey Richard M (Chairman & CEO) Sale 506 187.55 94,898
2017-02-07 Steinhardt John (Director) Sale 2,500 190.04 475,100
2017-02-07 Steinhardt John (Director) Option Ex 2,500 16.99 42,474
2017-02-07 Mcvey Richard M (Chairman & CEO) Sale 8,636 189.71 1,638,370
2017-02-07 Gomach David G (Director) Sale 5,370 189.99 1,020,219
2017-02-07 Gomach David G (Director) Option Ex 2,500 16.99 42,474
2017-01-12 Hersch Ronald M (Director) Option Ex 3,187 10.77 34,323
2017-01-06 Hersch Ronald M (Director) Option Ex 4,225 9.72 41,067
2016-10-28 Hersch Ronald M (Director) Option Ex 1,250 16.99 21,237
2016-10-17 Hersch Ronald M (Director) Option Ex 1,250 16.99 21,237
2016-08-23 Themelis Nicholas (Chief Information Officer) Sale 5,745 165.40 950,223
2016-08-22 Themelis Nicholas (Chief Information Officer) Sale 455 165.46 75,284
2016-08-19 Delise Antonio L (Chief Financial Officer) Sale 10,000 166.79 1,667,900
2016-08-08 Mcvey Richard M (Chairman & CEO) Sale 30,000 162.56 4,876,710
2016-05-24 Gomach David G (Director) Sale 4,923 139.25 685,527
2016-05-11 Mcvey Richard M (Chairman & CEO) Sale 25,000 127.89 3,197,275
2016-05-11 Mcvey Richard M (Chairman & CEO) Option Ex 63,565 12.96 823,802
2016-05-10 Mcvey Richard M (Chairman & CEO) Sale 25,000 127.14 3,178,525
2016-05-10 Mcvey Richard M (Chairman & CEO) Option Ex 25,975 12.96 336,636
2016-05-09 Casper Stephen P (Director) Sale 365 127.69 46,606
2016-05-09 Casper Stephen P (Director) Option Ex 5,000 9.30 46,500
2016-05-09 Mcvey Richard M (Chairman & CEO) Sale 30,000 127.21 3,816,390
2016-03-09 Mcvey Richard M (Chairman & CEO) Option Ex 24,240 .00 0
2016-02-16 Delise Antonio L (Chief Financial Officer) Sale 15,505 111.14 1,723,163
2016-02-16 Delise Antonio L (Chief Financial Officer) Option Ex 27,000 9.95 268,650
2016-02-05 Hersch Ronald M (Director) Option Ex 5,000 9.30 46,500
2016-02-05 Gomach David G (Director) Sale 2,500 108.64 271,590
2016-02-03 Themelis Nicholas (Chief Information Officer) Sale 10,683 113.76 1,215,308
2015-12-28 Delise Antonio L (Chief Financial Officer) Option Ex 3,000 9.95 29,849
2015-12-11 Mcvey Richard M (Chairman & CEO) Option Ex 92,419 .00 0
2015-12-07 Casper Stephen P (Director) Sale 1,500 112.40 168,598
2015-11-10 Mcvey Richard M (Chairman & CEO) Sale 10,746 98.46 1,058,083
2015-11-09 Mcvey Richard M (Chairman & CEO) Sale 29,254 99.05 2,897,637
2015-08-13 Gomach David G (Director) Sale 5,000 95.33 476,650
2015-08-13 Gomach David G (Director) Option Ex 5,000 9.30 46,500
2015-08-11 Mcvey Richard M (Chairman & CEO) Sale 13,346 96.08 1,282,270
2015-08-11 Delise Antonio L (Chief Financial Officer) Sale 5,660 95.72 541,797
2015-08-11 Delise Antonio L (Chief Financial Officer) Option Ex 10,000 9.95 99,500
2015-08-10 Mcvey Richard M (Chairman & CEO) Sale 26,654 98.24 2,618,542
2015-05-12 Mcvey Richard M (Chairman & CEO) Sale 7,400 85.71 634,276
2015-05-11 Mcvey Richard M (Chairman & CEO) Sale 20,100 85.90 1,726,590
2015-05-08 Mcvey Richard M (Chairman & CEO) Sale 12,500 85.34 1,066,737
2015-05-05 Delise Antonio L (Chief Financial Officer) Option Ex 4,000 9.95 39,800
2015-03-09 Steinhardt John (Director) Option Ex 5,000 10.04 50,199
2015-03-06 Hersch Ronald M (Director) Sale 2,375 84.99 201,856
2015-03-05 Hersch Ronald M (Director) Sale 2,000 85.58 171,170
2015-02-26 Delise Antonio L (Chief Financial Officer) Sale 7,000 80.92 566,447
2015-02-20 Mcvey Richard M (Chairman & CEO) Sale 800 79.26 63,407
2015-02-19 Mcvey Richard M (Chairman & CEO) Sale 2,743 80.11 219,752
2015-02-18 Mcvey Richard M (Chairman & CEO) Sale 16,470 80.83 1,331,204
2015-02-12 Gomach David G (Director) Sale 4,000 81.43 325,708
2015-02-10 Hersch Ronald M (Director) Sale 625 80.51 50,321
2015-02-10 Hersch Ronald M (Director) Option Ex 5,000 10.04 50,199
2015-02-10 Casper Stephen P (Director) Sale 630 80.35 50,618
2015-02-10 Casper Stephen P (Director) Option Ex 5,000 10.04 50,199
2015-02-10 Themelis Nicholas (Chief Information Officer) Sale 5,000 80.70 403,500
2015-02-09 Themelis Nicholas (Chief Information Officer) Sale 4,919 80.52 396,053
2015-01-14 Themelis Nicholas (Chief Information Officer) Option Ex 25,835 11.69 302,011
2014-12-24 Delise Antonio L (Chief Financial Officer) Option Ex 6,000 9.95 59,699
2014-12-08 Casper Stephen P (Director) Sale 2,000 69.06 138,112
2014-12-08 Mcvey Richard M (Chairman & CEO) Sale 6,089 68.68 418,198
2014-12-05 Mcvey Richard M (Chairman & CEO) Sale 5,500 67.78 372,790
2014-12-05 Mcvey Richard M (Chairman & CEO) Option Ex 5,500 15.60 85,800
2014-11-14 Themelis Nicholas (Chief Information Officer) Option Ex 2,538 15.60 39,592
2014-11-14 Mcvey Richard M (Chairman & CEO) Sale 7,000 65.66 459,641
2014-11-14 Mcvey Richard M (Chairman & CEO) Option Ex 7,000 15.60 109,200
2014-10-27 Mcvey Richard M (Chairman & CEO) Option Ex 30,460 12.96 394,761
2014-09-08 Casper Stephen P (Director) Sale 1,500 59.48 89,218
2014-08-21 Themelis Nicholas (Chief Information Officer) Sale 11,000 57.58 633,347
2014-08-12 Gomach David G (Director) Sale 5,000 56.52 282,580
2014-08-12 Gomach David G (Director) Option Ex 5,000 10.04 50,199
2014-07-30 Casper Stephen P (Director) Sale 1,930 57.05 110,108
2014-07-30 Casper Stephen P (Director) Option Ex 10,000 11.00 110,000
2014-04-29 Steinhardt John (Director) Sale 8,800 54.03 475,437
2014-04-29 Steinhardt John (Director) Option Ex 8,800 11.00 96,800
2014-04-28 Steinhardt John (Director) Sale 1,200 54.98 65,978
2014-04-28 Steinhardt John (Director) Option Ex 1,200 11.00 13,200
2013-11-22 Delise Antonio L (Chief Financial Officer) Sale 25,000 70.43 1,760,650
2013-11-22 Delise Antonio L (Chief Financial Officer) Option Ex 25,000 9.95 248,749
2013-11-20 Themelis Nicholas (Chief Information Officer) Sale 6,659 68.30 454,816
2013-11-20 Themelis Nicholas (Chief Information Officer) Option Ex 6,659 12.96 86,300
2013-11-19 Themelis Nicholas (Chief Information Officer) Sale 20,818 68.70 1,430,300
2013-11-19 Themelis Nicholas (Chief Information Officer) Option Ex 20,818 12.96 269,801
2013-10-31 Mcvey Richard M (Chairman & CEO) Option Ex 30,000 12.96 388,800
2013-07-31 Hersch Ronald M (Director) Sale 10,000 51.99 519,920
2013-07-31 Hersch Ronald M (Director) Option Ex 10,000 11.00 110,000
2013-07-30 Gomach David G (Director) Sale 5,000 52.20 261,005
2013-07-30 Gomach David G (Director) Option Ex 5,000 13.70 68,500
2013-06-11 Mcvey Richard M (Chairman & CEO) Sale 19,727 45.49 897,361
2013-06-10 Mcvey Richard M (Chairman & CEO) Sale 20,273 45.61 924,732
2013-06-07 Mcvey Richard M (Chairman & CEO) Sale 35,000 44.40 1,553,895
2013-05-17 Delise Antonio L (Chief Financial Officer) Sale 11,864 45.30 537,439
2013-05-16 Themelis Nicholas (Chief Information Officer) Sale 17,000 45.89 780,062
2013-05-10 Mcvey Richard M (Chairman & CEO) Sale 12,000 43.95 527,352
2013-05-09 Mcvey Richard M (Chairman & CEO) Sale 17,692 43.75 774,025
2013-05-08 Mcvey Richard M (Chairman & CEO) Sale 20,000 43.77 875,380
2013-03-14 Delise Antonio L (Chief Financial Officer) Sale 2,771 39.00 108,069
2013-03-12 Mcvey Richard M (Chairman & CEO) Sale 15,490 39.24 607,781
2013-03-11 Delise Antonio L (Chief Financial Officer) Sale 12,229 39.51 483,143
2013-02-07 Mcvey Richard M (Chairman & CEO) Option Ex 12,500 15.60 195,000
2012-12-14 Mcvey Richard M (Chairman & CEO) Sale 30,784 32.87 1,011,931
2012-12-13 Themelis Nicholas (Chief Information Officer) Sale 41,749 32.24 1,345,820
2012-12-13 Themelis Nicholas (Chief Information Officer) Option Ex 41,749 13.95 582,398
2012-12-13 Mcvey Richard M (Chairman & CEO) Sale 20,000 32.25 645,020
2012-12-12 Themelis Nicholas (Chief Information Officer) Sale 16,904 32.63 551,577
2012-12-12 Themelis Nicholas (Chief Information Officer) Option Ex 16,904 13.95 235,810
2012-12-12 Mcvey Richard M (Chairman & CEO) Sale 9,216 32.54 299,860
2012-12-11 Themelis Nicholas (Chief Information Officer) Sale 16,278 32.48 528,644
2012-12-11 Themelis Nicholas (Chief Information Officer) Option Ex 16,278 13.95 227,078
2012-12-10 Themelis Nicholas (Chief Information Officer) Sale 15,069 32.67 492,259
2012-12-10 Themelis Nicholas (Chief Information Officer) Option Ex 25,069 13.95 349,712
2012-06-12 Themelis Nicholas (Chief Information Officer) Sale 32,379 30.11 975,093
2012-06-12 Themelis Nicholas (Chief Information Officer) Option Ex 32,379 15.60 505,112
2012-06-12 Delise Antonio L (Chief Financial Officer) Sale 6,000 30.14 180,810
2012-06-11 Themelis Nicholas (Chief Information Officer) Sale 17,263 30.50 526,469
2012-06-11 Themelis Nicholas (Chief Information Officer) Option Ex 5,083 15.60 79,294
2012-05-23 Mcvey Richard M (Chairman & CEO) Sale 20,000 31.95 638,920
2012-05-22 Mcvey Richard M (Chairman & CEO) Sale 9,783 32.16 314,611
2012-05-21 Mcvey Richard M (Chairman & CEO) Sale 9,076 32.30 293,109
2012-05-09 Mcvey Richard M (Chairman & CEO) Option Ex 111,111 2.70 299,999
2012-05-03 Mcvey Richard M (Chairman & C. E. O.) Option Ex 888,889 2.70 2,400,000
2012-03-27 Mcvey Richard M (Chairman & C. E. O.) Option Ex 7,037 2.70 18,999
2011-12-09 Mcvey Richard M (Chairman & CEO) Sale 14,427 28.55 411,905
2011-12-09 Mcvey Richard M (Chairman & CEO) Option Ex 30,000 2.70 81,000
2011-12-08 Mcvey Richard M (Chairman & CEO) Sale 15,000 28.50 427,455
2011-12-07 Mcvey Richard M (Chairman & CEO) Sale 24,500 28.80 705,649
2011-12-01 Burkhardt Roger (Director) Sale 1,655 28.95 47,912
2011-11-30 Burkhardt Roger (Director) Sale 4,433 28.73 127,360
2011-11-15 Burkhardt Roger (Director) Sale 4,000 29.00 116,000
2011-11-08 Burkhardt Roger (Director) Sale 5,912 29.56 174,758
2011-11-08 Burkhardt Roger (Director) Option Ex 5,912 10.24 60,568
2011-11-07 Burkhardt Roger (Director) Sale 4,000 28.50 114,000
2011-11-07 Burkhardt Roger (Director) Option Ex 4,000 13.36 53,420
2011-11-07 Themelis Nicholas (Chief Information Officer) Sale 21,201 28.52 604,652
2011-11-07 Themelis Nicholas (Chief Information Officer) Option Ex 5,605 12.96 72,640
2011-11-04 Themelis Nicholas (Chief Information Officer) Sale 76,869 28.97 2,226,894
2011-11-04 Themelis Nicholas (Chief Information Officer) Option Ex 76,869 12.07 927,808
2011-11-04 Mcvey Richard M (Chairman & CEO) Option Ex 90,737 2.70 244,989
2011-11-04 Delise Antonio L (Chief Financial Officer) Sale 10,000 29.43 294,300
2011-05-10 Millet T Kelley (President) Sale 35,000 22.07 772,450
2011-05-09 Millet T Kelley (President) Sale 20,900 22.01 460,009
2011-05-05 Millet T Kelley (President) Sale 67,196 22.06 1,482,343
2011-05-05 Casper Stephen P (Director) Buy 170 22.20 3,773
2011-05-02 Trudeau Robert (Director) Sale 1,002,770 23.28 23,346,491
2011-03-08 Themelis Nicholas (Chief Information Officer) Sale 19,000 22.21 421,990
2011-03-07 Themelis Nicholas (Chief Information Officer) Sale 11,000 22.05 242,550
2011-02-15 Griffith William (Other) Sale 1,203,378 20.66 24,865,399
2010-11-12 Themelis Nicholas (Chief Information Officer) Sale 25,000 18.51 462,725
2010-11-12 Mcvey Richard M (Chairman & CEO) Sale 15,000 18.51 277,635
2010-11-11 Mcvey Richard M (Chairman & CEO) Sale 20,000 18.54 370,820
2010-11-10 Mcvey Richard M (Chairman & CEO) Sale 23,500 18.55 435,948
2010-11-10 Rucker James N B (See remarks below.) Sale 4,119 18.46 76,036
2010-11-10 Rucker James N B (See remarks below.) Option Ex 55,560 3.60 200,016
2010-11-09 Mcvey Richard M (Chairman & CEO) Sale 21,500 18.55 398,889
2010-11-04 Rucker James N B (See Remarks) Sale 42,795 18.75 802,404
2010-11-04 Rucker James N B (See Remarks) Option Ex 42,795 3.15 134,802
2010-05-25 Millet T Kelley (President) Buy 2,000 13.86 27,712
2010-05-24 Burkhardt Roger (Director) Buy 4,000 14.67 58,664
2010-02-25 Themelis Nicholas (Chief Information Officer) Sale 11,162 15.10 168,490
2010-02-24 Themelis Nicholas (Chief Information Officer) Sale 3,838 15.38 59,047
2009-08-05 Millet T Kelley (President) Buy 1,000 9.99 9,990
2008-11-21 Burkhardt Roger (Director) Buy 2,000 4.48 8,968
2008-11-04 Themelis Nicholas (Chief Information Officer) Buy 4,000 5.00 20,000
2008-11-04 Rucker James N B (Chief Financial Officer) Option Ex 35,176 3.00 105,528
2008-11-03 Millet T Kelley (President) Buy 10,000 5.66 56,580
2008-11-03 Themelis Nicholas (Chief Information Officer) Buy 4,000 5.50 22,000
2008-11-03 Gomach David G (Director) Buy 5,000 5.58 27,875
2008-03-10 Millet T Kelley (President) Buy 50,000 9.54 476,900
2007-11-15 Mcvey Richard M (Chairman and CEO) Sale 12,421 15.44 191,680
2007-11-14 Mcvey Richard M (Chairman and CEO) Sale 17,579 15.67 275,410
2007-10-16 Mcvey Richard M (Chairman and C.E.O.) Sale 10,000 15.00 149,447
2007-10-15 Mcvey Richard M (Chairman and C.E.O.) Sale 20,000 14.95 296,674
2007-09-14 Mcvey Richard M (Chairman and CEO) Sale 30,000 14.06 421,740
2007-07-16 Mcvey Richard M (Chairman and CEO) Sale 29,900 19.23 574,687
2006-12-14 Baillie Ian N (Head of MarketAxess Europe) Sale 29,300 13.99 409,936
2006-12-14 Baillie Ian N (Head of MarketAxess Europe) Option Ex 27,300 2.70 73,710
2006-12-13 Baillie Ian N (Head of MarketAxess Europe) Sale 2,700 14.29 38,588
2006-12-13 Baillie Ian N (Head of MarketAxess Europe) Option Ex 2,700 2.70 7,290
2006-11-07 Thees Thomas M (Other) Sale 800 13.00 10,400
2006-11-06 Thees Thomas M (Other) Sale 3,900 12.40 48,371
2006-11-02 Thees Thomas M (Other) Sale 6,100 12.16 74,163
2006-05-30 Baillie Ian N (Head of MarketAxess Europe) Buy 2,100 10.65 22,365
2006-05-25 Thees Thomas M (Chief Operating Officer) Buy 15,000 10.54 158,025
2006-05-25 Baillie Ian N (Head of MarketAxess Europe) Buy 9,900 10.49 103,851
2006-03-14 Mcvey Richard M (President and CEO) Sale 30,000 11.96 358,950
2006-02-15 Mcvey Richard M (President and CEO) Sale 36,800 12.78 470,451
2006-02-14 Mcvey Richard M (President and CEO) Sale 74,263 12.90 958,289
2006-01-17 Mcvey Richard M (President and CEO) Sale 1,830 11.62 21,255
2005-11-15 Mcvey Richard M (President and CEO) Sale 40,907 12.02 491,497
2005-10-17 Mcvey Richard M (President and CEO) Sale 62,200 11.96 744,223
2005-09-14 Mcvey Richard M (President and CEO) Sale 24,000 11.56 277,368
2005-08-23 Thees Thomas M (Other) Buy 1,000 10.15 10,150

Insider trading activities including stock purchases, stock sales, and option exercises of MKTX listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Marketaxess Holdings Inc (symbol MKTX, CIK number 1278021) see the Securities and Exchange Commission (SEC) website.