Interactive Brokers Group, Inc. (IBKR)

Latest Insider Confidence Score

2026Q1

43.2
Bearish

Company insider confidence (by quarter)

2016Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Brody Paul Jonathan CFO 2,885,496 Oct 3, 2025
Echinus Advisors, LLC Director 2,411,525 Apr 25, 2019
Peterffy Thomas Chair 1,516,182 Feb 24, 2025
Galik Milan CEO 223,922 Dec 2, 2024
Harris Lawrence E Director 198,704 Oct 31, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Jan 26, 2026 Jan 28, 2026 Nemser Earl H Chair Sell 15.0 -155,000 -25.54% ✗ $11.8M
Jan 22, 2026 Jan 26, 2026 Nemser Earl H Chair Sell 15.0 -245,000 -28.76% ✗ $19M
Jan 1, 2026 Jan 26, 2026 Peterffy William Director Neutral 82.5 +389 4.00% ✗ -
Jan 1, 2026 Jan 26, 2026 Nemser Earl H Chair Neutral 47.5 +389 0.05% ✗ -
Jan 1, 2026 Jan 26, 2026 Brody Paul Jonathan CFO Neutral 47.5 +389 0.01% ✗ -
Jan 1, 2026 Jan 26, 2026 Galik Milan CEO Neutral 47.5 +389 0.01% ✗ -
Jan 1, 2026 Jan 26, 2026 Harris Lawrence E Director Neutral 55.0 +389 0.20% ✗ -
Dec 31, 2025 Jan 26, 2026 Conkling Lori A Director Neutral 90.0 +778 50.00% ✗ -
Jan 1, 2026 Jan 26, 2026 Bright Jill Director Neutral 82.5 +389 3.64% ✗ -
Jan 1, 2026 Jan 26, 2026 Yuen Nicole Director Neutral 82.5 +389 4.00% ✗ -
Jan 1, 2026 Jan 26, 2026 Repetto Richard H Director Neutral 90.0 +389 14.64% ✗ -
Dec 31, 2025 Jan 7, 2026 Brody Paul Jonathan CFO Neutral 77.5 +53,841 1.87% ✗ -
Dec 31, 2025 Jan 7, 2026 Harris Lawrence E Director Neutral 55.0 +389 0.20% ✗ -
Dec 31, 2025 Jan 7, 2026 Bright Jill Director Neutral 82.5 +389 3.78% ✗ -
Dec 31, 2025 Jan 7, 2026 Galik Milan CEO Neutral 85.0 +225,039 6.93% ✗ -
Dec 31, 2025 Jan 7, 2026 Repetto Richard H Director Neutral 90.0 +389 17.15% ✗ -
Dec 31, 2025 Jan 7, 2026 Frank Thomas AJ President Neutral 85.0 +13,944 5.18% ✗ -
Dec 31, 2025 Jan 7, 2026 Nemser Earl H Chair Neutral 82.5 +23,629 2.85% ✗ -
Dec 31, 2025 Jan 7, 2026 Mendonca Denis Chief Accounting Officer Neutral 85.0 +11,156 7.69% ✗ -
Dec 31, 2025 Jan 7, 2026 Conkling Lori A Director Neutral 90.0 +1,556 100.00% ✗ -
Dec 31, 2025 Jan 7, 2026 Yuen Nicole Director Neutral 82.5 +389 4.16% ✗ -
Dec 31, 2025 Jan 7, 2026 Peterffy William Director Neutral 82.5 +389 4.16% ✗ -
Dec 29, 2025 Dec 30, 2025 Galik Milan CEO Neutral 27.5 -895,688 -21.63% ✗ -
Oct 29, 2025 Oct 31, 2025 Harris Lawrence E Director Sell 20.0 -10,645 -5.08% ✗ $734.5K
Oct 27, 2025 Oct 29, 2025 Harris Lawrence E Director Sell 20.0 -14,355 -6.42% ✗ $997K
Oct 23, 2025 Oct 27, 2025 Bright Jill Director Buy 83.8 +400 4.04% ✗ $26.4K
Oct 23, 2025 Oct 27, 2025 Harris Lawrence E Director Sell 17.5 -30,000 -11.82% ✗ $2M
Sep 19, 2025 Oct 3, 2025 Brody Paul Jonathan CFO Sell 37.5 -6,928 -0.23% ✗ $448K
Sep 29, 2025 Oct 1, 2025 Brody Paul Jonathan CFO Sell 27.5 -21,361 -0.73% ✗ $1.5M
Sep 25, 2025 Sep 29, 2025 Brody Paul Jonathan CFO Sell 17.5 -31,354 -1.06% ✗ $2M
Sep 23, 2025 Sep 25, 2025 Brody Paul Jonathan CFO Sell 17.5 -33,416 -1.12% ✗ $2.2M
Sep 19, 2025 Sep 23, 2025 Brody Paul Jonathan CFO Sell 17.5 -65,895 -2.16% ✗ $4.2M
Sep 17, 2025 Sep 19, 2025 Brody Paul Jonathan CFO Sell 15.0 -223,382 -6.84% ✗ $14.2M
Sep 15, 2025 Sep 17, 2025 Brody Paul Jonathan CFO Sell 15.0 -195,482 -5.64% ✗ $12.3M
Sep 11, 2025 Sep 15, 2025 Brody Paul Jonathan CFO Sell 15.0 -209,783 -5.71% ✗ $13.3M
Sep 9, 2025 Sep 11, 2025 Brody Paul Jonathan CFO Sell 15.0 -212,399 -5.47% ✗ $13.2M
Aug 14, 2025 Aug 15, 2025 Nemser Earl H Chair Sell 17.5 -53,900 -6.11% ✗ $3.4M
Aug 12, 2025 Aug 14, 2025 Nemser Earl H Chair Sell 15.0 -201,686 -18.62% ✗ $13.6M
Aug 8, 2025 Aug 12, 2025 Nemser Earl H Chair Sell 17.5 -25,682 -2.32% ✗ $1.7M
Aug 6, 2025 Aug 8, 2025 Nemser Earl H Chair Sell 17.5 -25,682 -2.26% ✗ $1.6M
Aug 4, 2025 Aug 6, 2025 Nemser Earl H Chair Sell 17.5 -25,682 -2.21% ✗ $1.6M
Jul 31, 2025 Aug 4, 2025 Nemser Earl H Chair Sell 17.5 -27,482 -2.31% ✗ $1.8M
Jul 30, 2025 Aug 1, 2025 Nemser Earl H Chair Sell 17.5 -39,786 -4.81% ✗ $2.6M
Jul 30, 2025 Aug 1, 2025 Brody Paul Jonathan CFO Neutral 90.0 +1,000,000 34.66% ✗ -
Jul 30, 2025 Aug 1, 2025 Nemser Earl H Chair Neutral 90.0 +400,000 50.77% ✗ -
Jul 28, 2025 Jul 30, 2025 Nemser Earl H Chair Sell 52.5 -100 -0.01% ✗ $6.6K
Jun 23, 2025 Jun 24, 2025 Nemser Earl H Chair Neutral 52.5 -500 -0.06% ✗ -
May 9, 2025 Jun 4, 2025 Nemser Earl H Chair Sell 38.8 -5,178 -2.44% ✓ $961K
May 9, 2025 Jun 3, 2025 Brody Paul Jonathan CFO Sell 17.5 -22,192 -2.98% ✗ $4.1M
May 9, 2025 Jun 3, 2025 Mendonca Denis Chief Accounting Officer Sell 20.0 -2,467 -6.37% ✗ $457.9K
May 9, 2025 Jun 3, 2025 Frank Thomas AJ President Sell 17.5 -8,212 -10.87% ✗ $1.5M
May 9, 2025 Jun 3, 2025 Nemser Earl H Chair Sell 20.0 -5,178 -2.44% ✗ $961K
May 9, 2025 Jun 3, 2025 Galik Milan CEO Sell 15.0 -63,580 -5.79% ✗ $11.8M
May 12, 2025 Conkling Lori A Director Neutral 52.5 - 0.00% ✗ -
Feb 20, 2025 Feb 24, 2025 Peterffy Thomas Chair Neutral 45.0 -6,447 -0.42% ✗ -
Feb 18, 2025 Feb 20, 2025 Peterffy Thomas Chair Neutral 27.5 -90,297 -5.60% ✗ -
Jan 31, 2025 Feb 4, 2025 Bright Jill Director Buy 86.3 +135 5.77% ✗ $29.6K
Dec 31, 2024 Jan 7, 2025 Peterffy William Director Neutral 85.0 +142 6.47% ✗ -
Dec 31, 2024 Jan 7, 2025 Frank Thomas AJ President Neutral 85.0 +6,709 9.75% ✗ -
Dec 31, 2024 Jan 7, 2025 Repetto Richard H Director Neutral 90.0 +567 100.00% ✗ -
Dec 31, 2024 Jan 7, 2025 Harris Lawrence E Director Neutral 60.0 +142 0.22% ✗ -
Dec 31, 2024 Jan 7, 2025 Galik Milan CEO Neutral 85.0 +69,447 6.75% ✗ -
Dec 31, 2024 Jan 7, 2025 Nemser Earl H Chair Neutral 82.5 +7,905 3.87% ✗ -
Dec 31, 2024 Jan 7, 2025 Yuen Nicole Director Neutral 85.0 +142 6.47% ✗ -
Dec 31, 2024 Jan 7, 2025 Bright Jill Director Neutral 85.0 +142 6.46% ✗ -
Dec 31, 2024 Jan 7, 2025 Brody Paul Jonathan CFO Neutral 82.5 +18,272 2.52% ✗ -
Dec 31, 2024 Jan 7, 2025 Mendonca Denis Chief Accounting Officer Neutral 90.0 +3,748 10.71% ✗ -
Dec 31, 2024 Jan 3, 2025 Galik Milan CEO Neutral 27.5 -223,922 -17.87% ✗ -
Nov 27, 2024 Dec 2, 2024 Galik Milan CEO Neutral 52.5 - 0.00% ✗ -
Oct 1, 2024 Oct 2, 2024 Peterffy Thomas Chair Neutral 27.5 -79,975 -4.72% ✗ -
Jul 25, 2024 Jul 29, 2024 Nemser Earl H Chair Neutral 90.0 +100,000 95.83% ✗ -
May 9, 2024 May 24, 2024 Mendonca Denis Chief Accounting Officer Sell 22.5 -1,964 -5.32% ✗ $234K
May 9, 2024 May 24, 2024 Brody Paul Jonathan CFO Sell 17.5 -22,883 -3.06% ✗ $2.7M
May 9, 2024 May 24, 2024 Frank Thomas AJ Chief Information Officer Sell 20.0 -8,127 -10.56% ✗ $968.2K
May 9, 2024 May 24, 2024 Nemser Earl H Chair Sell 20.0 -4,419 -4.06% ✗ $526.4K
May 9, 2024 May 24, 2024 Galik Milan CEO Sell 16.3 -61,995 -4.71% ✗ $7.4M
Apr 23, 2024 Apr 25, 2024 Peterffy Thomas Chair Buy 93.8 +62,296 3.82% ✗ $7.1M
Feb 21, 2024 Feb 23, 2024 Nemser Earl H Chair Sell 17.5 -10,000 -8.42% ✗ $1.1M
Feb 15, 2024 Feb 20, 2024 Nemser Earl H Chair Sell 17.5 -15,000 -11.21% ✗ $1.6M
Feb 13, 2024 Feb 15, 2024 Nemser Earl H Chair Sell 16.3 -75,000 -35.92% ✗ $7.6M
Feb 5, 2024 Feb 7, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -39,934 -11.17% ✗ $3.8M
Feb 2, 2024 Feb 6, 2024 Nemser Earl H Chair Sell 16.3 -100,000 -32.39% ✗ $9.6M
Feb 1, 2024 Feb 5, 2024 Frank Thomas AJ Chief Information Officer Sell 16.3 -84,477 -41.95% ✗ $7.9M
Jan 30, 2024 Feb 1, 2024 Frank Thomas AJ Chief Information Officer Sell 20.0 -8,608 -4.10% ✗ $776.3K
Jan 26, 2024 Jan 30, 2024 Frank Thomas AJ Chief Information Officer Sell 16.3 -95,790 -31.33% ✗ $8.7M
Jan 24, 2024 Jan 26, 2024 Frank Thomas AJ Chief Information Officer Sell 16.3 -92,959 -23.31% ✗ $8.5M
Jan 22, 2024 Jan 24, 2024 Frank Thomas AJ Chief Information Officer Sell 16.3 -96,928 -19.56% ✗ $8.8M
Jan 18, 2024 Jan 22, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -14,633 -2.87% ✗ $1.3M
Jan 16, 2024 Jan 18, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -28,325 -5.26% ✗ $2.5M
Jan 11, 2024 Jan 16, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -26,195 -4.64% ✗ $2.3M
Jan 11, 2024 Repetto Richard H Director Neutral 52.5 - 0.00% ✗ -
Jan 9, 2024 Jan 11, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -26,015 -4.40% ✗ $2.3M
Jan 5, 2024 Jan 9, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -26,015 -4.22% ✗ $2.3M
Dec 31, 2023 Jan 9, 2024 Uhde Philip Director Neutral 90.0 +302 13.30% ✗ -
Dec 31, 2023 Jan 5, 2024 Peterffy William Director Neutral 90.0 +302 15.95% ✗ -
Jan 3, 2024 Jan 5, 2024 Frank Thomas AJ Chief Information Officer Sell 17.5 -26,377 -4.10% ✗ $2.3M
Dec 31, 2023 Jan 5, 2024 Galik Milan CEO Neutral 90.0 +135,780 11.51% ✗ -
Dec 31, 2023 Jan 5, 2024 Brody Paul Jonathan CFO Neutral 85.0 +39,406 5.56% ✗ -
Dec 31, 2023 Jan 5, 2024 Nemser Earl H Chair Neutral 85.0 +15,082 5.14% ✗ -
Dec 31, 2023 Jan 5, 2024 Frank Thomas AJ Chief Information Officer Neutral 77.5 +15,088 2.40% ✗ -