Company · CIK 0001381197 · SIC 6211 — Security Brokers, Dealers & Flotation Companies · Nasdaq
Interactive Brokers Group, Inc. · IBKR
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 1, 2026 PForm 4 → | Sep 2, 4:01 pm EDT | Lori A ConklingDirector | 25 | $94.53 | $2,363 | 2,559 | +0.99% | 10b5-1 |
| Aug 3, 2026 PForm 4 → | Aug 4, 4:01 pm EDT | Lori A ConklingDirector | 25 | $87.03 | $2,176 | 2,534 | +1.00% | 10b5-1 |
| Jul 31, 2026 AForm 4 → | Aug 4, 4:27 pm EDT | Earl H NemserVice Chairman, Director | 803,568 | $87.99 | $70,705,948 | 803,568 | — | |
| Jul 1, 2026 PForm 4 → | Jul 1, 4:01 pm EDT | Lori A ConklingDirector | 25 | $88.03 | $2,201 | 2,509 | +1.01% | 10b5-1 |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:16 pm EST | John M. DamgardDirector | 1,373 | — | — | 1,873 | — | plan? |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:13 pm EST | Milan GalikPresident, Director | 94,782 | — | — | 955,775 | — | plan? |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:10 pm EST | Earl H NemserVice Chairman, Director | 7,434 | — | — | 75,811 | — | plan? |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:07 pm EST | Thomas AJ FrankChief Information Officer | 17,656 | — | — | 328,714 | — | plan? |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:04 pm EST | Paul Jonathan BrodyChief Financial Officer, Director | 47,113 | — | — | 650,757 | — | plan? |
| Dec 31, 2018 AForm 4 → | Jan 3, 2019, 4:01 pm EST | Denis MendoncaChief Accounting Officer | 5,948 | — | — | 16,352 | — | plan? |
| Dec 3, 2018 SForm 4 → | Dec 4, 1:43 pm EST | Thomas AJ FrankChief Information Officer | 564 | $62.00 | $34,968 | 815,458 | −0.07% | plan? |
| Sep 4, 2018 SForm 4 → | Sep 6, 8:51 pm EDT | Thomas AJ FrankChief Information Officer | 29,840 | $62.49 | $1,864,756 | 816,022 | −3.53% | plan? |
| Aug 31, 2018 SForm 4 → | Sep 4, 3:28 pm EDT | Thomas AJ FrankChief Information Officer | 6,871 | $62.19 | $427,307 | 845,862 | −0.81% | plan? |
| Aug 29, 2018 SForm 4 → | Aug 31, 10:31 am EDT | Thomas AJ FrankChief Information Officer | 24,756 | $62.11 | $1,537,533 | 852,733 | −2.82% | plan? |
| Aug 27, 2018 SForm 4 → | Aug 29, 5:35 pm EDT | Thomas AJ FrankChief Information Officer | 54,972 | $62.17 | $3,417,504 | 877,489 | −5.90% | plan? |
| Aug 20, 2018 SForm 4 → | Aug 22, 12:28 pm EDT | Thomas AJ FrankChief Information Officer | 28,776 | $62.11 | $1,787,136 | 932,461 | −2.99% | plan? |
| Aug 10, 2018 SForm 4 → | Aug 14, 10:31 am EDT | Thomas AJ FrankChief Information Officer | 30,951 | $62.05 | $1,920,446 | 961,237 | −3.12% | plan? |
| Aug 9, 2018 SForm 4 → | Aug 13, 9:39 am EDT | Thomas AJ FrankChief Information Officer | 7,812 | $62.02 | $484,500 | 992,188 | −0.78% | plan? |
| Jul 27, 2018 AForm 4 → | Jul 31, 6:57 pm EDT | Thomas AJ FrankChief Information Officer | 1,000,000 | $61.37 | $61,370,000 | 1,000,000 | — | plan? |
| May 9, 2018 FForm 4 → | May 22, 4:49 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 38,626 | $79.24 | $3,060,724 | 603,644 | — | plan? late |
| May 9, 2018 FForm 4 → | May 22, 4:42 pm EDT | Milan GalikPresident, Director | 66,260 | $79.24 | $5,250,442 | 858,865 | — | plan? late |
| May 9, 2018 FForm 4 → | May 22, 4:26 pm EDT | Thomas AJ FrankChief Information Officer | 15,844 | $79.24 | $1,255,479 | 311,058 | — | plan? late |
| May 9, 2018 FForm 4 → | May 22, 4:10 pm EDT | Earl H NemserVice Chairman, Director | 233 | $79.24 | $18,463 | 68,377 | — | plan? late |
| May 9, 2018 FForm 4 → | May 22, 4:00 pm EDT | Denis MendoncaChief Accounting Officer | 549 | $79.24 | $43,503 | 10,404 | — | plan? late |
| Jan 22, 2018 SForm 4 → | Jan 24, 7:57 pm EST | Earl H NemserVice Chairman, Director | 32,000 | $62.80 | $2,009,600 | 68,610 | −31.8% | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:54 pm EDT | Gary KatzDirector | 1,267 | — | — | 1,267 | — | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:44 pm EDT | Thomas AJ FrankChief Information Officer | 15,075 | — | — | 326,902 | — | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:39 pm EDT | Milan GalikPresident, Director | 75,374 | — | — | 925,125 | — | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:29 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 40,200 | — | — | 642,270 | — | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:18 pm EDT | Earl H NemserVice Chairman, Director | 5,025 | — | — | 100,610 | — | plan? |
| Dec 31, 2017 AForm 4/A → | Apr 6, 2018, 4:13 pm EDT | Denis MendoncaChief Accounting Officer | 3,350 | — | — | 10,953 | — | plan? |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 7:28 pm EST | Gary KatzDirector | 1,267 | — | — | 1,267 | — | plan? amended |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 7:21 pm EST | Milan GalikPresident, Director | 75,374 | — | — | 925,125 | — | plan? amended |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 7:14 pm EST | Earl H NemserVice Chairman, Director | 5,025 | — | — | 100,610 | — | plan? amended |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 6:52 pm EST | Paul Jonathan BrodyChief Financial Officer, Director | 40,200 | — | — | 642,270 | — | plan? amended |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 6:46 pm EST | Thomas AJ FrankChief Information Officer | 15,075 | — | — | 326,902 | — | plan? amended |
| Dec 31, 2017 AForm 4 → | Jan 3, 2018, 6:17 pm EST | Denis MendoncaChief Accounting Officer | 3,350 | — | — | 10,953 | — | plan? amended |
| Nov 6, 2017 SForm 4 → | Nov 8, 12:59 pm EST | Thomas AJ FrankChief Information Officer | 54,903 | $54.21 | $2,976,105 | 0 | −100% | plan? |
| Nov 2, 2017 SForm 4 → | Nov 6, 3:08 pm EST | Thomas AJ FrankChief Information Officer | 72,610 | $54.33 | $3,944,921 | 54,903 | −56.9% | plan? |
| Nov 2, 2017 SForm 4 → | Nov 6, 3:07 pm EST | Thomas AJ FrankChief Information Officer | 72,610 | $54.33 | $3,944,921 | 54,903 | −56.9% | plan? |
| Oct 31, 2017 SForm 4 → | Nov 2, 8:31 pm EDT | Thomas AJ FrankChief Information Officer | 73,265 | $53.90 | $3,948,983 | 127,513 | −36.5% | plan? |
| Oct 27, 2017 SForm 4 → | Oct 31, 6:44 pm EDT | Thomas AJ FrankChief Information Officer | 44,784 | $53.23 | $2,383,713 | 200,778 | −18.2% | plan? |
| Oct 27, 2017 SForm 4 → | Oct 30, 7:05 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 606 | $52.47 | $31,797 | 0 | −100% | plan? |
| Oct 26, 2017 SForm 4 → | Oct 30, 7:12 pm EDT | Earl H NemserVice Chairman, Director | 20 | $52.41 | $1,048 | 0 | −100% | plan? |
| Oct 25, 2017 SForm 4 → | Oct 27, 1:28 pm EDT | Earl H NemserVice Chairman, Director | 1,290 | $51.34 | $66,234 | 20 | −98.5% | plan? |
| Oct 25, 2017 SForm 4 → | Oct 27, 1:24 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,519 | $51.61 | $594,508 | 606 | −95.0% | plan? |
| Oct 25, 2017 SForm 4 → | Oct 27, 1:19 pm EDT | Thomas AJ FrankChief Information Officer | 29,764 | $51.52 | $1,533,294 | 245,562 | −10.8% | plan? |
| Oct 23, 2017 SForm 4 → | Oct 25, 7:56 pm EDT | Thomas AJ FrankChief Information Officer | 32,670 | $50.59 | $1,652,637 | 275,326 | −10.6% | plan? |
| Oct 23, 2017 SForm 4 → | Oct 25, 7:39 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,756 | $50.65 | $544,765 | 12,125 | −47.0% | plan? |
| Oct 23, 2017 SForm 4 → | Oct 25, 7:27 pm EDT | Earl H NemserVice Chairman, Director | 2,683 | $50.84 | $136,402 | 95,585 | −2.73% | plan? |
| Oct 20, 2017 SForm 4 → | Oct 23, 4:09 pm EDT | Denis MendoncaChief Accounting Officer | 1,156 | $49.50 | $57,222 | 7,603 | −13.2% | plan? |
| Oct 19, 2017 SForm 4 → | Oct 23, 8:04 pm EDT | Thomas AJ FrankChief Information Officer | 33,700 | $49.38 | $1,663,962 | 307,996 | −9.86% | plan? |
| Oct 19, 2017 SForm 4 → | Oct 23, 7:39 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $49.37 | $83,088 | 2,993 | −36.0% | plan? |
| Oct 19, 2017 SForm 4 → | Oct 23, 7:36 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,171 | $49.36 | $551,378 | 22,881 | −32.8% | plan? |
| Oct 17, 2017 SForm 4 → | Oct 19, 7:40 pm EDT | Thomas AJ FrankChief Information Officer | 33,700 | $48.63 | $1,638,753 | 341,696 | −8.98% | plan? |
| Oct 17, 2017 SForm 4 → | Oct 19, 7:36 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $48.65 | $81,873 | 4,676 | −26.5% | plan? |
| Oct 17, 2017 SForm 4 → | Oct 19, 7:32 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,311 | $48.63 | $550,049 | 34,052 | −24.9% | plan? |
| Oct 13, 2017 SForm 4 → | Oct 17, 5:52 pm EDT | Earl H NemserVice Chairman, Director | 1,675 | $47.56 | $79,662 | 6,359 | −20.8% | plan? |
| Oct 13, 2017 SForm 4 → | Oct 17, 5:49 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,033 | $47.58 | $524,945 | 45,363 | −19.6% | plan? |
| Oct 13, 2017 SForm 4 → | Oct 17, 5:14 pm EDT | Thomas AJ FrankChief Information Officer | 33,615 | $47.57 | $1,599,226 | 375,396 | −8.22% | plan? |
| Oct 11, 2017 SForm 4 → | Oct 13, 2:19 pm EDT | Earl H NemserVice Chairman, Director | 1,608 | $47.78 | $76,838 | 8,034 | −16.7% | plan? |
| Oct 11, 2017 SForm 4 → | Oct 13, 2:17 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,241 | $47.73 | $536,563 | 56,396 | −16.6% | plan? |
| Oct 11, 2017 SForm 4 → | Oct 13, 2:14 pm EDT | Thomas AJ FrankChief Information Officer | 32,772 | $47.75 | $1,564,752 | 409,011 | −7.42% | plan? |
| Oct 9, 2017 SForm 4 → | Oct 11, 1:11 pm EDT | Earl H NemserVice Chairman, Director | 1,658 | $47.42 | $78,625 | 9,642 | −14.7% | plan? |
| Oct 9, 2017 SForm 4 → | Oct 11, 1:02 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,339 | $47.45 | $490,579 | 67,637 | −13.3% | plan? |
| Oct 9, 2017 SForm 4 → | Oct 11, 12:46 pm EDT | Thomas AJ FrankChief Information Officer | 32,977 | $47.43 | $1,564,123 | 441,783 | −6.95% | plan? |
| Oct 5, 2017 SForm 4 → | Oct 10, 5:40 pm EDT | Thomas AJ FrankChief Information Officer | 33,266 | $47.53 | $1,581,107 | 474,760 | −6.55% | plan? late |
| Oct 5, 2017 SForm 4 → | Oct 10, 9:34 am EDT | Earl H NemserVice Chairman, Director | 1,649 | $47.52 | $78,368 | 11,300 | −12.7% | plan? late |
| Oct 5, 2017 SForm 4 → | Oct 10, 9:31 am EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,519 | $47.53 | $547,556 | 77,976 | −12.9% | plan? late |
| Oct 3, 2017 SForm 4 → | Oct 5, 11:15 am EDT | Earl H NemserVice Chairman, Director | 1,623 | $47.12 | $76,480 | 12,949 | −11.1% | plan? |
| Oct 3, 2017 SForm 4 → | Oct 5, 11:13 am EDT | Thomas AJ FrankChief Information Officer | 33,105 | $47.10 | $1,559,196 | 508,026 | −6.12% | plan? |
| Oct 3, 2017 SForm 4 → | Oct 5, 11:12 am EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,617 | $47.11 | $500,129 | 89,495 | −10.6% | plan? |
| Sep 29, 2017 SForm 4 → | Oct 3, 3:23 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $45.26 | $76,169 | 14,572 | −10.4% | plan? |
| Sep 29, 2017 SForm 4 → | Oct 3, 3:20 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,310 | $45.20 | $511,233 | 100,112 | −10.2% | plan? |
| Sep 29, 2017 SForm 4 → | Oct 3, 2:54 pm EDT | Thomas AJ FrankChief Information Officer | 32,951 | $45.23 | $1,490,305 | 541,131 | −5.74% | plan? |
| Sep 27, 2017 SForm 4 → | Sep 29, 3:02 pm EDT | Thomas AJ FrankChief Information Officer | 32,909 | $44.52 | $1,465,005 | 574,082 | −5.42% | plan? |
| Sep 27, 2017 SForm 4 → | Sep 29, 3:02 pm EDT | Earl H NemserVice Chairman, Director | 1,632 | $44.52 | $72,661 | 16,255 | −9.12% | plan? |
| Sep 27, 2017 SForm 4 → | Sep 29, 2:59 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,172 | $44.52 | $497,345 | 111,422 | −9.11% | plan? |
| Sep 25, 2017 SForm 4 → | Sep 27, 3:47 pm EDT | Earl H NemserVice Chairman, Director | 1,590 | $43.91 | $69,811 | 17,887 | −8.16% | plan? |
| Sep 25, 2017 SForm 4 → | Sep 27, 3:45 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,825 | $43.92 | $475,404 | 122,594 | −8.11% | plan? |
| Sep 25, 2017 SForm 4 → | Sep 27, 2:11 pm EDT | Thomas AJ FrankChief Information Officer | 31,453 | $43.91 | $1,381,175 | 606,991 | −4.93% | plan? |
| Sep 21, 2017 SForm 4 → | Sep 25, 5:38 pm EDT | Thomas AJ FrankChief Information Officer | 32,730 | $43.58 | $1,426,501 | 638,444 | −4.88% | plan? |
| Sep 21, 2017 SForm 4 → | Sep 25, 4:13 pm EDT | Earl H NemserVice Chairman, Director | 1,623 | $43.59 | $70,745 | 19,477 | −7.69% | plan? |
| Sep 21, 2017 SForm 4 → | Sep 25, 4:10 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,519 | $43.59 | $502,113 | 133,419 | −7.95% | plan? |
| Sep 20, 2017 PForm 4 → | Sep 21, 2018, 4:29 pm EDT | Milan GalikPresident, Director | 2,128 | $59.04 | $125,645 | 860,993 | +0.25% | plan? late |
| Sep 19, 2017 SForm 4 → | Sep 21, 5:20 pm EDT | Thomas AJ FrankChief Information Officer | 32,543 | $43.46 | $1,414,241 | 671,174 | −4.62% | plan? |
| Sep 19, 2017 SForm 4 → | Sep 21, 1:22 pm EDT | Earl H NemserVice Chairman, Director | 1,624 | $43.42 | $70,522 | 21,100 | −7.15% | plan? |
| Sep 19, 2017 SForm 4 → | Sep 21, 1:19 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,686 | $43.41 | $463,908 | 144,938 | −6.87% | plan? |
| Sep 15, 2017 SForm 4 → | Sep 19, 4:50 pm EDT | Thomas AJ FrankChief Information Officer | 25,268 | $42.43 | $1,072,040 | 703,717 | −3.47% | plan? |
| Sep 15, 2017 SForm 4 → | Sep 19, 3:07 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $42.29 | $71,182 | 22,724 | −6.90% | plan? |
| Sep 15, 2017 SForm 4 → | Sep 19, 3:04 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 10,894 | $42.34 | $461,204 | 155,624 | −6.54% | plan? |
| Sep 13, 2017 SForm 4 → | Sep 15, 12:12 pm EDT | Thomas AJ FrankChief Information Officer | 16,666 | $41.94 | $698,953 | 728,985 | −2.24% | plan? |
| Sep 13, 2017 SForm 4 → | Sep 15, 12:10 pm EDT | Earl H NemserVice Chairman, Director | 1,666 | $41.94 | $69,870 | 24,407 | −6.39% | plan? |
| Sep 13, 2017 SForm 4 → | Sep 15, 12:05 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,310 | $41.95 | $474,420 | 166,518 | −6.36% | plan? |
| Sep 11, 2017 SForm 4 → | Sep 13, 4:24 pm EDT | Thomas AJ FrankChief Information Officer | 16,836 | $41.90 | $705,428 | 745,651 | −2.21% | plan? |
| Sep 11, 2017 SForm 4 → | Sep 13, 4:01 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $41.90 | $70,518 | 26,073 | −6.06% | plan? |
| Sep 11, 2017 SForm 4 → | Sep 13, 4:00 pm EDT | Earl H NemserVice Chairman, Director | 1,683 | $41.90 | $70,518 | 26,073 | −6.06% | plan? |
| Sep 11, 2017 SForm 4 → | Sep 13, 3:56 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,380 | $41.89 | $476,757 | 177,828 | −6.01% | plan? |
| Sep 7, 2017 SForm 4 → | Sep 11, 2:39 pm EDT | Earl H NemserVice Chairman, Director | 1,623 | $41.40 | $67,193 | 27,756 | −5.52% | plan? |
| Sep 7, 2017 SForm 4 → | Sep 11, 2:36 pm EDT | Paul Jonathan BrodyChief Financial Officer, Director | 11,380 | $41.38 | $470,886 | 189,208 | −5.67% | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.