437 institutions reported holding $3.94B of ISHARES (ISTB) in SEC 13F filings for 2026-06-30. Largest institutional holders: Acorns Advisers, LLC ($616.1M), BlackRock, Inc. ($374.2M), STATE OF WISCONSIN INVESTMENT BOARD ($267.8M), Sixth Street Partners Management Company, L.P. ($126.7M), CHARLES SCHWAB INVESTMENT MANAGEMENT INC ($126.7M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30