2,838 institutions reported holding $218.42B of ISHARES TR (IWM) in SEC 13F filings for 2026-03-31. Largest institutional holders: JANE STREET GROUP, LLC ($26.66B), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($15.44B), MILLENNIUM MANAGEMENT LLC ($13.10B), BARCLAYS PLC ($11.69B), BANK OF AMERICA CORP /DE/ ($10.32B). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-03-31