Interactive Brokers Group Inc. (IBKR)

Sector:Financials
Super Investor Stats:
Ownership count:5
Ownership rank:157
% of all portfolios:0.681%
Hold Price * :$67.16
History Portfolio Manager Activity Share change % change to portfolio ▼
Q1  2026
≡ William Von Mueffling - Cantillon Capital Management Reduce 11.87% 1,514,023 0.67
≡ John Armitage - Egerton Capital Reduce 9.57% 664,402 0.49
≡ Viking Global Investors Buy 1,394,329 0.26
≡ Robert Vinall - RV Capital GmbH Add 0.72% 5,441 0.10
Q4  2025
≡ Robert Vinall - RV Capital GmbH Reduce 5.85% 46,789 0.70
≡ John Armitage - Egerton Capital Add 10.96% 685,447 0.48
≡ William Von Mueffling - Cantillon Capital Management Add 0.76% 95,878 0.03
Q3  2025
≡ John Armitage - Egerton Capital Reduce 22.37% 1,802,710 1.31
≡ Robert Vinall - RV Capital GmbH Reduce 5.96% 50,653 0.64
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.09% 139,605 0.05
Q2  2025
≡ John Armitage - Egerton Capital Add 9.83% 720,968 0.41
≡ William Von Mueffling - Cantillon Capital Management Reduce 2.82% 371,673 0.12
Q1  2025
≡ Bryan Lawrence - Oakcliff Capital Reduce 14.01% 168,000 3.66
≡ Robert Vinall - RV Capital GmbH Reduce 5.29% 47,468 0.43
≡ William Von Mueffling - Cantillon Capital Management Reduce 3.00% 407,456 0.11
≡ John Armitage - Egerton Capital Reduce 0.77% 56,816 0.03
Q4  2024
≡ Robert Vinall - RV Capital GmbH Reduce 28.90% 364,800 3.50
≡ John Armitage - Egerton Capital Reduce 45.36% 6,137,360 3.14
≡ Bryan Lawrence - Oakcliff Capital Reduce 0.98% 11,848 0.27
≡ William Von Mueffling - Cantillon Capital Management Add 0.53% 72,188 0.02
Q3  2024
≡ John Armitage - Egerton Capital Add 7.95% 996,572 0.35
≡ Robert Vinall - RV Capital GmbH Add 1.81% 22,400 0.16
≡ William Von Mueffling - Cantillon Capital Management Reduce 2.90% 403,728 0.09
Q2  2024
≡ John Armitage - Egerton Capital Add 10.97% 1,238,692 0.38
≡ William Von Mueffling - Cantillon Capital Management Reduce 4.85% 708,516 0.15
Q1  2024
≡ John Armitage - Egerton Capital Buy 11,294,788 3.05
≡ Bryan Lawrence - Oakcliff Capital Reduce 10.89% 148,000 2.48
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.96% 292,660 0.05
Q4  2023
≡ Robert Vinall - RV Capital GmbH Add 7.34% 84,800 0.51
≡ William Von Mueffling - Cantillon Capital Management Reduce 2.38% 363,040 0.05
Q3  2023
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.39% 59,356 0.01
Q2  2023
≡ Robert Vinall - RV Capital GmbH Add 41.72% 340,000 2.30
≡ William Von Mueffling - Cantillon Capital Management Add 6.38% 920,272 0.13
Q1  2023
≡ Robert Vinall - RV Capital GmbH Buy 814,988 6.40
≡ William Von Mueffling - Cantillon Capital Management Add 11.93% 1,536,744 0.26
Q4  2022
≡ Bryan Lawrence - Oakcliff Capital Reduce 5.98% 86,400 1.17
≡ William Von Mueffling - Cantillon Capital Management Add 30.33% 2,997,368 0.46
Q3  2022
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.88% 88,156 0.01
Q2  2022
≡ Bryan Lawrence - Oakcliff Capital Add 20.48% 245,600 2.49
≡ William Von Mueffling - Cantillon Capital Management Add 12.07% 1,073,632 0.12
Q1  2022
≡ Bryan Lawrence - Oakcliff Capital Add 14.51% 152,000 1.30
≡ William Von Mueffling - Cantillon Capital Management Add 2.87% 248,044 0.03
≡ Lee Ainslie - Maverick Capital Sell 100.00% 2,952 0.00
Q4  2021
≡ William Von Mueffling - Cantillon Capital Management Reduce 7.02% 653,304 0.09
≡ Lee Ainslie - Maverick Capital Buy 2,952 0.00
Q3  2021
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.41% 132,992 0.01
≡ Lee Ainslie - Maverick Capital Sell 100.00% 8,496 0.00
Q2  2021
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.59% 152,848 0.02
≡ Lee Ainslie - Maverick Capital Buy 8,496 0.00
Q1  2021
≡ Bryan Lawrence - Oakcliff Capital Reduce 28.72% 422,000 3.65
≡ William Von Mueffling - Cantillon Capital Management Reduce 3.27% 324,572 0.04
Q4  2020
≡ Bryan Lawrence - Oakcliff Capital Reduce 5.39% 83,756 0.51
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.40% 40,104 0.00
Q3  2020
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.02% 102,544 0.01
Q2  2020
≡ William Von Mueffling - Cantillon Capital Management Add 0.75% 75,172 0.01
Q1  2020
≡ Bryan Lawrence - Oakcliff Capital Add 1.13% 17,324 0.13
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.29% 28,592 0.00
Q4  2019
≡ Bryan Lawrence - Oakcliff Capital Add 11.63% 160,000 1.11
≡ William Von Mueffling - Cantillon Capital Management Reduce 2.07% 211,084 0.02
Q3  2019
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.72% 73,624 0.01
Q2  2019
≡ William Von Mueffling - Cantillon Capital Management Reduce 1.72% 180,092 0.02
Q1  2019
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.77% 81,128 0.01
Q4  2018
≡ William Von Mueffling - Cantillon Capital Management Add 0.90% 94,380 0.02
Q3  2018
≡ William Von Mueffling - Cantillon Capital Management Add 5.73% 567,152 0.09
Q2  2018
≡ William Von Mueffling - Cantillon Capital Management Reduce 2.66% 270,828 0.05
Q1  2018
≡ William Von Mueffling - Cantillon Capital Management Add 24.57% 2,004,764 0.38
Q4  2017
≡ William Von Mueffling - Cantillon Capital Management Reduce 4.93% 422,848 0.07
Q3  2017
≡ William Von Mueffling - Cantillon Capital Management Add 11.42% 879,496 0.11
Q2  2017
≡ William Von Mueffling - Cantillon Capital Management Buy 7,703,564 0.90
Q2  2010
≡ Mohnish Pabrai - Pabrai Investments Sell 100.00% 376,416 0.46
Q4  2009
≡ Mohnish Pabrai - Pabrai Investments Reduce 0.95% 3,600 0.00
Q3  2009
≡ Mohnish Pabrai - Pabrai Investments Buy 380,016 0.58

* "Hold Price" is the last known price at which an investor still held a security. It is the closing price of the security as of the portfolio date (quarter end). This value is only provided when a security is owned by at least two investors. In the case of reporting dates being different, a weighted average price is calculated.