United States Investment Banking & Investment Services

Interactive Brokers Group Inc (IBKR)

Track

Over the last 90 days, Interactive Brokers Group Inc. saw a net sell-off of approximately $2 million, primarily driven by significant sales from Earl H. Nemser. While Lori A. Conkling made several small purchases, the overall insider activity indicates a net divestment. The stock has performed strongly, up over 30% in the past 90 days.
Stock chart
Ticker: IBKR Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Conkling Lori A
1 purchase — total 100,000 USD
Buy 1 Jun 2026
Value US$1,019,945.08 | Price 338.37 | Shares 67,546
Buy 1 May 2026
Value US$151,104.04 | Price 52.67 | Shares 82,211
Sale 28 Apr 2026
Value US$2,000,180.00 | Price 76.93 | Shares 26,000
Proposed sale 28 Apr 2026
Value US$2,017,340.00 | Price 77.59 | Shares 26,000
Buy 1 Apr 2026
Value US$1,709.50 | Price 68.38 | Shares 25
Buy 2 Mar 2026
Value US$1,730.25 | Price 69.21 | Shares 25
Buy 25 Feb 2026
Value US$3,660.50 | Price 73.21 | Shares 50
Sale 27 Jan 2026
Value US$1,550,526.75 | Price 75.75 | Shares 20,469
Sale 27 Jan 2026
Value US$2,982,606.17 | Price 75.07 | Shares 39,731
Sale 26 Jan 2026
Value US$241,815.98 | Price 77.98 | Shares 3,101
Sale 26 Jan 2026
Value US$2,364,280.24 | Price 76.72 | Shares 30,817
Sale 26 Jan 2026
Value US$4,616,682.06 | Price 75.83 | Shares 60,882
Sale 23 Jan 2026
Value US$4,693,479.10 | Price 78.14 | Shares 60,065
Sale 23 Jan 2026
Value US$6,595,202.75 | Price 77.65 | Shares 84,935
Sale 22 Jan 2026
Value US$7,681,000.00 | Price 76.81 | Shares 100,000
Proposed sale 22 Jan 2026
Value US$30,320,000.00 | Price 75.80 | Shares 400,000
Buy 7 Nov 2025
Value US$19,999.40 | Price 1.00 | Shares 19,999
Sale 29 Oct 2025
Value US$734,505.00 | Price 69.00 | Shares 10,645
Sale 28 Oct 2025
Value US$474,023.25 | Price 69.15 | Shares 6,855
Sale 27 Oct 2025
Value US$522,975.00 | Price 69.73 | Shares 7,500
Sale 24 Oct 2025
Value US$548,000.00 | Price 68.50 | Shares 8,000
Sale 23 Oct 2025
Value US$1,487,860.00 | Price 67.63 | Shares 22,000
Proposed sale 23 Oct 2025
Value US$4,857,750.00 | Price 64.77 | Shares 75,000
Buy 23 Oct 2025
Value US$26,380.00 | Price 65.95 | Shares 400
Sale 30 Sep 2025
Value US$80,850.00 | Price 70.00 | Shares 1,155
Sale 30 Sep 2025
Value US$137,144.70 | Price 69.30 | Shares 1,979
Sale 29 Sep 2025
Value US$138,842.70 | Price 68.70 | Shares 2,021
Sale 29 Sep 2025
Value US$600,229.84 | Price 68.27 | Shares 8,792
Sale 29 Sep 2025
Value US$497,924.24 | Price 67.16 | Shares 7,414
Sale 26 Sep 2025
Value US$104,583.15 | Price 66.15 | Shares 1,581
Sale 26 Sep 2025
Value US$1,017,457.98 | Price 65.74 | Shares 15,477
Sale 25 Sep 2025
Value US$276,927.12 | Price 65.19 | Shares 4,248
Sale 25 Sep 2025
Value US$574,162.16 | Price 64.76 | Shares 8,866
Sale 25 Sep 2025
Value US$75,423.42 | Price 63.81 | Shares 1,182
Sale 24 Sep 2025
Value US$60,755.58 | Price 65.54 | Shares 927
Sale 24 Sep 2025
Value US$871,928.64 | Price 64.76 | Shares 13,464
Sale 23 Sep 2025
Value US$838,141.02 | Price 65.49 | Shares 12,798
Sale 23 Sep 2025
Value US$404,132.30 | Price 64.90 | Shares 6,227
Sale 22 Sep 2025
Value US$36,375.43 | Price 64.61 | Shares 563
Sale 22 Sep 2025
Value US$936,017.66 | Price 63.94 | Shares 14,639
Sale 19 Sep 2025
Value US$9,126.60 | Price 65.19 | Shares 140
Sale 19 Sep 2025
Value US$3,266,229.33 | Price 64.61 | Shares 50,553
Sale 18 Sep 2025
Value US$4,619,785.95 | Price 65.05 | Shares 71,019
Sale 18 Sep 2025
Value US$2,441,082.00 | Price 64.40 | Shares 37,905
Sale 18 Sep 2025
Value US$503,443.91 | Price 63.43 | Shares 7,937
Sale 17 Sep 2025
Value US$2,794,542.96 | Price 62.48 | Shares 44,727
Sale 17 Sep 2025
Value US$3,834,935.64 | Price 62.06 | Shares 61,794
Sale 16 Sep 2025
Value US$36,757.94 | Price 62.62 | Shares 587
Sale 16 Sep 2025
Value US$6,136,926.24 | Price 62.24 | Shares 98,601
Sale 15 Sep 2025
Value US$96,325.74 | Price 64.26 | Shares 1,499
Sale 15 Sep 2025
Value US$2,392,507.74 | Price 63.79 | Shares 37,506
Sale 15 Sep 2025
Value US$3,589,728.74 | Price 62.66 | Shares 57,289
Sale 12 Sep 2025
Value US$3,955,195.23 | Price 64.19 | Shares 61,617
Sale 12 Sep 2025
Value US$2,272,193.28 | Price 63.84 | Shares 35,592
Sale 11 Sep 2025
Value US$3,477,099.42 | Price 63.54 | Shares 54,723
Sale 11 Sep 2025
Value US$3,641,141.94 | Price 62.94 | Shares 57,851
Sale 10 Sep 2025
Value US$6,557,674.06 | Price 62.51 | Shares 104,906
Sale 9 Sep 2025
Value US$5,268,971.12 | Price 62.02 | Shares 84,956
Sale 9 Sep 2025
Value US$1,381,518.10 | Price 61.30 | Shares 22,537
Proposed sale 9 Sep 2025
Value US$61,110,000.00 | Price 61.11 | Shares 1,000,000
Sale 14 Aug 2025
Value US$1,317,858.62 | Price 64.22 | Shares 20,521
Sale 14 Aug 2025
Value US$2,131,582.94 | Price 63.86 | Shares 33,379
Sale 13 Aug 2025
Value US$13,440.00 | Price 67.20 | Shares 200
Sale 13 Aug 2025
Value US$160,248.00 | Price 66.77 | Shares 2,400
Sale 13 Aug 2025
Value US$13,218.00 | Price 66.09 | Shares 200
Sale 13 Aug 2025
Value US$12,838.00 | Price 64.19 | Shares 200
Sale 13 Aug 2025
Value US$293,250.00 | Price 63.75 | Shares 4,600
Sale 12 Aug 2025
Value US$2,788,917.68 | Price 67.88 | Shares 41,086
Sale 12 Aug 2025
Value US$10,310,670.00 | Price 67.39 | Shares 153,000
Sale 11 Aug 2025
Value US$848,661.69 | Price 66.09 | Shares 12,841
Sale 8 Aug 2025
Value US$174,147.54 | Price 65.94 | Shares 2,641
Sale 8 Aug 2025
Value US$669,120.00 | Price 65.60 | Shares 10,200
Sale 7 Aug 2025
Value US$28,378.35 | Price 64.35 | Shares 441
Sale 7 Aug 2025
Value US$792,856.00 | Price 63.94 | Shares 12,400
Sale 6 Aug 2025
Value US$12,832.00 | Price 64.16 | Shares 200
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-02 2026-06-01 B Purchase
Conkling Lori A
Non-Executive Director
67,546 +0.7%
338.37
US$1,019,945 		67,546 +0.7% 338.37 US$1,019,945
2026-05-04 2026-05-01 B Purchase
Conkling Lori A
Non-Executive Director
82,211 +19.0%
52.67
US$151,104 		82,211 +19.0% 52.67 US$151,104
2026-04-29 2026-04-28 S Sale
1.8
Harris Lawrence E
Non-Executive Director
62,724 +0.3%
120.30
US$4,969,690 		62,724 +0.3% 120.30 US$4,969,690
2026-04-28 2026-04-28 PrS Proposed sale
1.8
Harris Lawrence E

Director

Non-Executive Director
26,000
77.59
US$2,017,340 		26,000 77.59 US$2,017,340
2026-04-02 2026-04-01 B Purchase
Conkling Lori A
Non-Executive Director
25 +1.0%
68.38
US$1,710 		25 +1.0% 68.38 US$1,710
2026-03-26 2026-03-02 B Purchase
Conkling Lori A
Non-Executive Director
25 +1.0%
69.21
US$1,730 		25 +1.0% 69.21 US$1,730
2026-03-26 2026-02-25 B Purchase
Conkling Lori A
Non-Executive Director
50 +2.1%
73.21
US$3,660 		50 +2.1% 73.21 US$3,660
2026-01-28 2026-01-27 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
20,469 -100.0%
75.75
US$1,550,527 		20,469 -100.0% 75.75 US$1,550,527
2026-01-28 2026-01-27 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
39,731 -66.0%
75.07
US$2,982,606 		39,731 -66.0% 75.07 US$2,982,606
2026-01-28 2026-01-26 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
3,101 -4.9%
77.98
US$241,816 		3,101 -4.9% 77.98 US$241,816
2026-01-28 2026-01-26 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
30,817 -32.7%
76.72
US$2,364,280 		30,817 -32.7% 76.72 US$2,364,280
2026-01-28 2026-01-26 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
60,882 -39.3%
75.83
US$4,616,682 		60,882 -39.3% 75.83 US$4,616,682
2026-01-26 2026-01-23 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
60,065 -27.9%
78.14
US$4,693,479 		60,065 -27.9% 78.14 US$4,693,479
2026-01-26 2026-01-23 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
84,935 -28.3%
77.65
US$6,595,203 		84,935 -28.3% 77.65 US$6,595,203
2026-01-26 2026-01-22 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
100,000 -25.0%
76.81
US$7,681,000 		100,000 -25.0% 76.81 US$7,681,000
2026-01-22 2026-01-22 PrS Proposed sale
2.7
Nemser Earl H

Officer; Director

Executive Director
400,000
75.80
US$30,320,000 		400,000 75.80 US$30,320,000
2025-11-14 2025-11-07 B Purchase Serhii Dobrohorskyi

Deputy Chief Executive Officer for Agribusiness

Officer
19,999
1.00
US$19,999 		19,999 1.00 US$19,999
2025-10-31 2025-10-29 S Sale
1.8
Harris Lawrence E
Non-Executive Director
10,645 -5.1%
69.00
US$734,505 		10,645 -5.1% 69.00 US$734,505
2025-10-29 2025-10-28 S Sale
1.8
Harris Lawrence E
Non-Executive Director
6,855 -3.2%
69.15
US$474,023 		6,855 -3.2% 69.15 US$474,023
2025-10-29 2025-10-27 S Sale
1.8
Harris Lawrence E
Non-Executive Director
7,500 -3.4%
69.73
US$522,975 		7,500 -3.4% 69.73 US$522,975
2025-10-27 2025-10-24 S Sale
1.8
Harris Lawrence E
Non-Executive Director
8,000 -3.5%
68.50
US$548,000 		8,000 -3.5% 68.50 US$548,000
2025-10-27 2025-10-23 S Sale
1.8
Harris Lawrence E
Non-Executive Director
22,000 -8.7%
67.63
US$1,487,860 		22,000 -8.7% 67.63 US$1,487,860
2025-10-27 2025-10-23 B Purchase
2.0
Bright Jill
Non-Executive Director
400 +4.0%
65.95
US$26,380 		400 +4.0% 65.95 US$26,380
2025-10-23 2025-10-23 PrS Proposed sale
1.8
Harris Lawrence E

Director

Non-Executive Director
75,000
64.77
US$4,857,750 		75,000 64.77 US$4,857,750
2025-10-01 2025-09-30 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
1,155 -14.3%
70.00
US$80,850 		1,155 -14.3% 70.00 US$80,850
2025-10-01 2025-09-30 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
1,979 -19.7%
69.30
US$137,145 		1,979 -19.7% 69.30 US$137,145
2025-10-01 2025-09-29 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
2,021 -16.7%
68.70
US$138,843 		2,021 -16.7% 68.70 US$138,843
2025-10-01 2025-09-29 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
8,792 -42.1%
68.27
US$600,230 		8,792 -42.1% 68.27 US$600,230
2025-10-01 2025-09-29 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
7,414 -26.2%
67.16
US$497,924 		7,414 -26.2% 67.16 US$497,924
2025-09-29 2025-09-26 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
1,581 -5.3%
66.15
US$104,583 		1,581 -5.3% 66.15 US$104,583
2025-09-29 2025-09-26 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
15,477 -34.1%
65.74
US$1,017,458 		15,477 -34.1% 65.74 US$1,017,458
2025-09-29 2025-09-25 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
4,248 -8.6%
65.19
US$276,927 		4,248 -8.6% 65.19 US$276,927
2025-09-29 2025-09-25 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
8,866 -15.2%
64.76
US$574,162 		8,866 -15.2% 64.76 US$574,162
2025-09-29 2025-09-25 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
1,182 -2.0%
63.81
US$75,423 		1,182 -2.0% 63.81 US$75,423
2025-09-25 2025-09-24 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
927 -1.5%
65.54
US$60,756 		927 -1.5% 65.54 US$60,756
2025-09-25 2025-09-24 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
13,464 -18.2%
64.76
US$871,929 		13,464 -18.2% 64.76 US$871,929
2025-09-25 2025-09-23 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
12,798 -14.7%
65.49
US$838,141 		12,798 -14.7% 65.49 US$838,141
2025-09-25 2025-09-23 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
6,227 -6.7%
64.90
US$404,132 		6,227 -6.7% 64.90 US$404,132
2025-09-23 2025-09-22 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
563 -0.6%
64.61
US$36,375 		563 -0.6% 64.61 US$36,375
2025-09-23 2025-09-22 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
14,639 -13.5%
63.94
US$936,018 		14,639 -13.5% 63.94 US$936,018
2025-09-23 2025-09-19 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
140 -0.1%
65.19
US$9,127 		140 -0.1% 65.19 US$9,127
2025-09-23 2025-09-19 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
50,553 -31.8%
64.61
US$3,266,229 		50,553 -31.8% 64.61 US$3,266,229
2025-09-19 2025-09-18 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
71,019 -30.9%
65.05
US$4,619,786 		71,019 -30.9% 65.05 US$4,619,786
2025-09-19 2025-09-18 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
37,905 -14.2%
64.40
US$2,441,082 		37,905 -14.2% 64.40 US$2,441,082
2025-09-19 2025-09-18 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
7,937 -2.9%
63.43
US$503,444 		7,937 -2.9% 63.43 US$503,444
2025-09-19 2025-09-17 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
44,727 -14.0%
62.48
US$2,794,543 		44,727 -14.0% 62.48 US$2,794,543
2025-09-19 2025-09-17 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
61,794 -16.2%
62.06
US$3,834,936 		61,794 -16.2% 62.06 US$3,834,936
2025-09-17 2025-09-16 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
587 -0.2%
62.62
US$36,758 		587 -0.2% 62.62 US$36,758
2025-09-17 2025-09-16 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
98,601 -20.5%
62.24
US$6,136,926 		98,601 -20.5% 62.24 US$6,136,926
2025-09-17 2025-09-15 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
1,499 -0.3%
64.26
US$96,326 		1,499 -0.3% 64.26 US$96,326
2025-09-17 2025-09-15 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
37,506 -7.2%
63.79
US$2,392,508 		37,506 -7.2% 63.79 US$2,392,508
2025-09-17 2025-09-15 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
57,289 -9.9%
62.66
US$3,589,729 		57,289 -9.9% 62.66 US$3,589,729
2025-09-15 2025-09-12 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
61,617 -9.6%
64.19
US$3,955,195 		61,617 -9.6% 64.19 US$3,955,195
2025-09-15 2025-09-12 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
35,592 -5.3%
63.84
US$2,272,193 		35,592 -5.3% 63.84 US$2,272,193
2025-09-15 2025-09-11 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
54,723 -7.5%
63.54
US$3,477,099 		54,723 -7.5% 63.54 US$3,477,099
2025-09-15 2025-09-11 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
57,851 -7.3%
62.94
US$3,641,142 		57,851 -7.3% 62.94 US$3,641,142
2025-09-11 2025-09-10 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
104,906 -11.8%
62.51
US$6,557,674 		104,906 -11.8% 62.51 US$6,557,674
2025-09-11 2025-09-09 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
84,956 -8.7%
62.02
US$5,268,971 		84,956 -8.7% 62.02 US$5,268,971
2025-09-11 2025-09-09 S Sale
2.4
Brody Paul Jonathan

Chief Financial Officer

Executive Director
22,537 -2.3%
61.30
US$1,381,518 		22,537 -2.3% 61.30 US$1,381,518
2025-09-09 2025-09-09 PrS Proposed sale
2.4
Brody Paul Jonathan

Officer

Officer
1,000,000
61.11
US$61,110,000 		1,000,000 61.11 US$61,110,000
2025-08-15 2025-08-14 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
20,521 -4.9%
64.22
US$1,317,859 		20,521 -4.9% 64.22 US$1,317,859
2025-08-15 2025-08-14 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
33,379 -7.4%
63.86
US$2,131,583 		33,379 -7.4% 63.86 US$2,131,583
2025-08-14 2025-08-13 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
200 -0.0%
67.20
US$13,440 		200 -0.0% 67.20 US$13,440
2025-08-14 2025-08-13 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
2,400 -0.5%
66.77
US$160,248 		2,400 -0.5% 66.77 US$160,248
2025-08-14 2025-08-13 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
200 -0.0%
66.09
US$13,218 		200 -0.0% 66.09 US$13,218
2025-08-14 2025-08-13 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
200 -0.0%
64.19
US$12,838 		200 -0.0% 64.19 US$12,838
2025-08-14 2025-08-13 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
4,600 -1.0%
63.75
US$293,250 		4,600 -1.0% 63.75 US$293,250
2025-08-14 2025-08-12 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
41,086 -8.2%
67.88
US$2,788,918 		41,086 -8.2% 67.88 US$2,788,918
2025-08-14 2025-08-12 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
153,000 -23.3%
67.39
US$10,310,670 		153,000 -23.3% 67.39 US$10,310,670
2025-08-12 2025-08-11 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
12,841 -1.9%
66.09
US$848,662 		12,841 -1.9% 66.09 US$848,662
2025-08-12 2025-08-08 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
2,641 -0.4%
65.94
US$174,148 		2,641 -0.4% 65.94 US$174,148
2025-08-12 2025-08-08 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
10,200 -1.5%
65.60
US$669,120 		10,200 -1.5% 65.60 US$669,120
2025-08-08 2025-08-07 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
441 -0.1%
64.35
US$28,378 		441 -0.1% 64.35 US$28,378
2025-08-08 2025-08-07 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
12,400 -1.8%
63.94
US$792,856 		12,400 -1.8% 63.94 US$792,856
2025-08-08 2025-08-06 S Sale
2.7
Nemser Earl H

Vice Chairman

Executive Director
200 -0.0%
64.16
US$12,832 		200 -0.0% 64.16 US$12,832
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