446 institutions reported holding $6.05B of SOUTHWEST GAS HLDGS INC (SWX) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($991.5M), VANGUARD GROUP INC ($669.3M), FMR LLC ($494.4M), Corvex Management LP ($284.5M), STATE STREET CORP ($231.2M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30