AILLP - Ameren Illinois Company PFD 4% goes ex dividend tomorrow October, 12 2023 11:07 AM Ameren Illinois 4 Pfd 2023-10-12 11:07:42 ET More on Ameren Illinois Company PFD 4% Dividend scorecard for Ameren Illinois Company PFD 4% Financial information for Ameren Illinois Company PFD 4% For further details see: Ameren Illinois Company PFD 4% goes ex dividend tomorrow