Interactive Brokers Group, Inc. (IBKR)

Financials · Security Brokers, Dealers & Flotation Companies

Interactive Brokers Group, Inc. (IBKR) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.

Top institutional holders (2026-Q3)

InstitutionSharesValue% Outstanding
Ninety One UK Ltd 5,183,881 $442.81M 8.10%
Egerton Capital (UK) LLP 3,160,704 $269.99M 4.94%
CONGRESS ASSET MANAGEMENT CO 1,502,435 28.34M 2.35%
AGF MANAGEMENT LTD 1,452,335 24.06M 2.27%
Robeco Institutional Asset Management B.V. 1,417,966 21.12M 2.22%
TimesSquare Capital Management, LLC 1,291,416 10.31M 2.02%
Hosking Partners LLP 950,149 $81.16M 1.48%
MACKENZIE FINANCIAL CORP 900,146 $76.89M 1.41%

Recent insider transactions

DateInsiderTitleTypeValue
2026-11-02 Conkling Lori A — Purchase $2.0K
2026-10-28 Harris Lawrence E — Sale $2.07M
2026-10-01 Conkling Lori A — Purchase $2.1K
2026-09-01 Conkling Lori A — Purchase $2.4K
2026-08-03 Conkling Lori A — Purchase $2.2K
2026-07-01 Conkling Lori A — Purchase $2.2K
2026-05-01 Conkling Lori A — Purchase $2.0K
2026-04-28 Harris Lawrence E — Sale $2.00M

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Holdings from SEC 13F. Insider trades from Form 4. Congress from House and Senate PTRs. Real-time market prices via TradingView.