| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 16, 2014 | Sale | $22.89 | 7,177 | 164,282 | 175,155 | Jan 17, 2014, 03:52 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 13, 2014 | Sale | $22.79 | 7,737 | 176,326 | 197,402 | Jan 15, 2014, 01:47 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 14, 2014 | Sale | $22.95 | 7,535 | 172,928 | 189,867 | Jan 15, 2014, 01:47 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 09, 2014 | Sale | $22.95 | 7,738 | 177,587 | 212,543 | Jan 13, 2014, 01:14 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 10, 2014 | Sale | $22.88 | 7,404 | 169,404 | 205,139 | Jan 13, 2014, 01:14 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 07, 2014 | Sale | $24.14 | 7,690 | 185,637 | 227,970 | Jan 09, 2014, 03:02 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 08, 2014 | Sale | $23.51 | 7,689 | 180,792 | 220,445 | Jan 09, 2014, 03:02 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 06, 2014 | Sale | $24.33 | 7,737 | 188,241 | 235,660 | Jan 07, 2014, 01:42 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 03, 2014 | Sale | $24.51 | 7,738 | 189,658 | 243,397 | Jan 07, 2014, 01:42 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 31, 2013 | Sale | $24.38 | 5,952 | 145,110 | 258,753 | Jan 03, 2014, 06:24 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Jan 02, 2014 | Sale | $24.33 | 7,618 | 185,346 | 251,135 | Jan 03, 2014, 06:24 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 27, 2013 | Sale | $24.49 | 4,832 | 118,336 | 270,883 | Dec 31, 2013, 12:03 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 30, 2013 | Sale | $24.48 | 6,178 | 151,237 | 264,705 | Dec 31, 2013, 12:03 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 24, 2013 | Sale | $24.42 | 3,387 | 82,711 | 283,453 | Dec 27, 2013, 03:48 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 26, 2013 | Sale | $24.70 | 7,738 | 191,129 | 275,715 | Dec 27, 2013, 03:48 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 20, 2013 | Sale | $24.24 | 7,082 | 171,668 | 294,282 | Dec 23, 2013, 05:22 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 23, 2013 | Sale | $24.39 | 7,442 | 181,510 | 286,840 | Dec 23, 2013, 05:22 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 18, 2013 | Sale | $24.12 | 7,737 | 186,616 | 308,721 | Dec 20, 2013, 12:47 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 19, 2013 | Sale | $24.45 | 7,357 | 179,879 | 301,364 | Dec 20, 2013, 12:47 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 16, 2013 | Sale | $24.34 | 6,940 | 168,920 | 323,107 | Dec 18, 2013, 03:38 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 17, 2013 | Sale | $24.23 | 6,649 | 161,105 | 316,458 | Dec 18, 2013, 03:38 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 12, 2013 | Sale | $24.44 | 5,749 | 140,506 | 337,674 | Dec 16, 2013, 05:07 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 13, 2013 | Sale | $24.46 | 7,627 | 186,556 | 330,047 | Dec 16, 2013, 05:07 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 11, 2013 | Sale | $24.14 | 7,737 | 186,771 | 343,423 | Dec 12, 2013, 04:50 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 10, 2013 | Sale | $24.19 | 7,500 | 181,425 | 351,160 | Dec 12, 2013, 04:50 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 06, 2013 | Sale | $24.71 | 7,737 | 191,181 | 365,409 | Dec 10, 2013, 04:55 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 09, 2013 | Sale | $24.34 | 6,749 | 164,271 | 358,660 | Dec 10, 2013, 04:55 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 04, 2013 | Sale | $24.53 | 7,737 | 189,789 | 379,712 | Dec 06, 2013, 02:37 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 05, 2013 | Sale | $24.60 | 6,566 | 161,524 | 373,146 | Dec 06, 2013, 02:37 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 02, 2013 | Sale | $24.61 | 7,309 | 179,874 | 395,186 | Dec 04, 2013, 02:13 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Dec 03, 2013 | Sale | $24.52 | 7,737 | 189,711 | 387,449 | Dec 04, 2013, 02:13 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 27, 2013 | Sale | $24.21 | 4,952 | 119,888 | 406,018 | Dec 02, 2013, 04:23 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 29, 2013 | Sale | $24.26 | 3,523 | 85,468 | 402,495 | Dec 02, 2013, 04:23 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 25, 2013 | Sale | $24.32 | 7,211 | 175,372 | 415,876 | Nov 27, 2013, 12:04 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 26, 2013 | Sale | $24.22 | 4,906 | 118,823 | 410,970 | Nov 27, 2013, 12:04 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 21, 2013 | Sale | $24.26 | 7,284 | 176,710 | 427,670 | Nov 25, 2013, 05:40 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 22, 2013 | Sale | $24.12 | 4,583 | 110,542 | 423,087 | Nov 25, 2013, 05:40 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 19, 2013 | Sale | $23.83 | 7,534 | 179,535 | 442,466 | Nov 21, 2013, 03:21 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 20, 2013 | Sale | $23.70 | 7,512 | 178,034 | 434,954 | Nov 21, 2013, 03:21 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chairman | Nov 12, 2013 | Award/Grant | $23.42 | 450,000 | 10,539,000 | 450,000 | Nov 14, 2013, 02:27 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chariman | May 09, 2013 | Tax Payment (Shares) | $15.69 | 4,755 | 74,606 | 86,673 | May 17, 2013, 03:12 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chariman | May 09, 2012 | Tax Payment (Shares) | $14.48 | 3,711 | 53,735 | 73,441 | May 15, 2012, 06:05 PM |
| IBKR | | Interactive Brokers Group, Inc. | Earl H. Nemser | Vice Chariman | May 09, 2011 | Tax Payment (Shares) | $17.41 | 2,678 | 46,624 | 54,092 | May 13, 2011, 04:44 PM |