1,504 institutions reported holding $59.63B of REGENERON (REGN) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($6.76B), BlackRock, Inc. ($5.68B), Dodge & Cox ($3.04B), STATE STREET CORP ($3.01B), Invesco Ltd. ($2.46B). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30