Institutional Ownership
Interactive Brokers Group In
CUSIP 45841N107COM CL AIBKRQ1 2026
13D / 13G Filings
32
Schedule 13D/13G on record
Beneficial Filers
10
Distinct reporting persons
Largest Stake
78.2%
Max % of class reported
Institutional Holders
981
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
32 filings · latest Nov 7, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Nov 7, 2025 | Bares Capital Management, Inc. | 13G/A | — | — | SEC |
| 2 | Oct 17, 2025 | Blackrock, Inc. | 13G/A | 6.2% | 27.62M | SEC |
| 3 | Sep 8, 2025 | The Vanguard Group | 13G/A | 11.4% | 50.76M | SEC |
| 4 | Feb 14, 2025 | Orbis Investment Management Ltd | 13G/A | 4.9% | 5.29M | SEC |
| 5 | Feb 5, 2025 | Blackrock, Inc. | 13G/A | 9.5% | 10.33M | SEC |
| 6 | Nov 14, 2024 | Orbis Investment Management Ltd | 13G/A | 6.0% | 6.47M | SEC |
| 7 | Nov 13, 2024 | Kayne Anderson Rudnick Investment Management LLC | 13G/A | 3.6% | 3.88M | SEC |
| 8 | Feb 14, 2024 | Orbis Investment Management Ltd | 13G | 7.3% | 7.72M | SEC |
| 9 | Feb 13, 2024 | Kayne Anderson Rudnick Investment Management LLC | 13G/A | 5.9% | 6.31M | SEC |
| 10 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 9.1% | 9.69M | SEC |
22 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Interactive Brokers Group In.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 31.38M | $2.10B |
| 2 | State Street Corp | 19.09M | $1.28B |
| 3 | Fmr LLC | 12.50M | $838.46M |
| 4 | Cantillon Capital Management LLC | 11.25M | $754.26M |
| 5 | Geode Capital Management, LLC | 10.44M | $699.50M |
| 6 | Kayne Anderson Rudnick Investment Management LLC | 10.02M | $671.79M |
| 7 | Wellington Management Group LLP | 9.77M | $655.60M |
| 8 | Invesco Ltd. | 9.65M | $647.04M |
| 9 | Two Sigma Investments, LP | 8.31M | $557.55M |
| 10 | Jpmorgan Chase & Co | 6.72M | $428.23M |