Stocktoria
Interactive Brokers Group, Inc. IBKR
Interactive Brokers Group, Inc. institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| BlackRock Finance, Inc. | 9,301,894 | $1.1B | 2.1% |
| TWO SIGMA INVESTMENTS, LP | 8,396,671 | $563.2M | 1.89% |
| CITADEL ADVISORS LLC | 1,911,473 | $128.2M | 0.43% |
| MILLENNIUM MANAGEMENT LLC | 735,500 | $49.3M | 0.17% |
| SOROS FUND MANAGEMENT LLC | 645,344 | $43.3M | 0.15% |
| D. E. Shaw & Co., Inc. | 508,008 | $34.1M | 0.11% |
| RENAISSANCE TECHNOLOGIES LLC | 461,700 | $31.0M | 0.1% |
| Point72 Asset Management, L.P. | 362,492 | $24.3M | 0.08% |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.