1,183 institutions reported holding $34.88B of Interactive Brokers Group Inc. (IBKR) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($3.62B), BlackRock, Inc. ($2.88B), STATE STREET CORP ($1.69B), FMR LLC ($1.03B), GEODE CAPITAL MANAGEMENT, LLC ($925.5M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30