1,021 institutions reported holding $27.87B of AMEREN CORP (AEE) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($4.19B), BlackRock, Inc. ($2.92B), PRICE T ROWE ASSOCIATES INC /MD/ ($2.33B), STATE STREET CORP ($1.72B), T. Rowe Price Investment Management, Inc. ($1.37B). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30