Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership44,966 shares
Latest Disclosed Value $ 3,015,954
Us Bancorp \de\ reports 21.78% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 44,966 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $3,015,954 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 57,483 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -21.78% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 44,966 -12,517 -21.78 3,016 -18.43 0.0011
2026-01-30 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 57,483 -5,146 -8.22 3,697 -14.23 0.0043
2025-11-12 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 62,629 122 0.20 4,310 24.43 0.0051
2025-07-24 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 62,507 46,089 280.72 3,464 27.36 0.0044
2025-05-08 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 16,418 -1,726 -9.51 2,719 -15.19 0.0036
2025-02-05 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 18,144 -474 -2.55 3,206 23.55 0.0042
2024-10-28 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 18,618 -503 -2.63 2,595 10.71 0.0033
2024-08-07 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 19,121 -5,199 -21.38 2,345 -13.73 0.0032
2024-05-08 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 24,320 -4,440 -15.44 2,717 13.97 0.0038
2024-02-09 2023-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 28,760 -519 -1.77 2,384 -5.92 0.0035
2023-11-03 2023-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 29,279 1,017 3.60 2,535 7.97 0.0041
2023-08-10 2023-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 28,262 -1,257 -4.26 2,348 -3.69 0.0038
2023-05-09 2023-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 29,519 -878 -2.89 2,437 10.82 0.0041
2023-02-13 2022-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 30,397 -716 -2.30 2,199 10.61 0.0039
2022-10-27 2022-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 31,113 -1,198 -3.71 1,988 11.87 0.0041
2022-08-01 2022-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 32,311 -1,657 -4.88 1,777 -20.63 0.0034
2022-05-11 2022-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 33,968 -5,861 -14.72 2,239 -29.19 0.0037
2022-02-11 2021-12-31 13F INTERACTIVE BROKERS GROUP COMMON STOCK 45841N107 39,829 1,587 4.15 3,162 32.63 0.0050
2021-11-10 2021-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 38,242 -1,456 -3.67 2,384 -8.62 0.0045
2021-08-05 2021-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 39,698 -1,059 -2.60 2,609 -12.36 0.0049
2021-04-28 2021-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 40,757 -1,845 -4.33 2,977 14.68 0.0060
2021-02-04 2020-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 42,602 -1,787 -4.03 2,596 20.97 0.0056
2020-11-10 2020-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 44,389 -81 -0.18 2,146 15.56 0.0052
2020-08-07 2020-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 44,470 1,298 3.01 1,857 -0.38 0.0049
2020-05-13 2020-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 43,172 -886 -2.01 1,864 -9.25 0.0058
2020-02-04 2019-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 44,058 -1,160 -2.57 2,054 -15.54 0.0053
2019-11-08 2019-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 45,218 -2,813 -5.86 2,432 -6.57 0.0066
2019-08-13 2019-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 48,031 -5,493 -10.26 2,603 -6.23 0.0073
2019-05-08 2019-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 53,524 2,065 4.01 2,776 -1.28 0.0080
2019-02-13 2018-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 51,459 3,775 7.92 2,812 6.64 0.0091
2018-10-31 2018-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 47,684 -2,889 -5.71 2,637 -19.04 0.0076
2018-08-08 2018-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 50,573 270 0.54 3,257 -3.70 0.0100
2018-05-08 2018-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 50,303 378 0.76 3,382 14.37 0.0104
2018-02-02 2017-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 49,925 2,694 5.70 2,957 39.02 0.0090
2017-11-13 2017-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 47,231 4,932 11.66 2,127 34.37 0.0068
2017-07-19 2017-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 42,299 12,649 42.66 1,583 53.69 0.0053
2017-05-03 2017-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 29,650 27,694 1,415.85 1,030 1,350.70 0.0035
2017-02-08 2016-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,956 0 0.00 71 2.90 0.0003
2016-11-04 2016-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,956 95 5.10 69 4.55 0.0003
2016-08-10 2016-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,861 518 38.57 66 24.53 0.0003
2016-05-13 2016-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,343 52 4.03 53 -7.02 0.0002
2016-02-10 2015-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,291 -214 -14.22 57 -5.00 0.0002
2015-11-16 2015-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,505 33 2.24 60 -1.64 0.0003
2015-08-10 2015-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,472 224 17.95 61 45.24 0.0002
2015-05-08 2015-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,248 -98 -7.28 42 7.69 0.0002
2015-02-13 2014-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,346 -626 -31.74 39 -20.41 0.0002
2014-11-14 2014-09-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,972 0 0.00 49 6.52 0.0002
2014-08-14 2014-06-30 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 1,972 -210 -9.62 46 -2.13 0.0002
2014-05-14 2014-03-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 2,182 -75 -3.32 47 -14.55 0.0002
2014-02-13 2013-12-31 13F INTERACTIVE BROKERS GROUP CL A COMMON STOCK 45841N107 2,257 2,257 55 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.