2,945 institutions reported holding $258.26B of ISHARES TR (IWM) in SEC 13F filings for 2026-06-30. Largest institutional holders: JANE STREET GROUP, LLC ($32.18B), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($27.36B), BARCLAYS PLC ($15.50B), MILLENNIUM MANAGEMENT LLC ($14.51B), CITADEL ADVISORS LLC ($12.69B). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30