NMPWP - Niagara Mohawk Power Corporation PFD 3.40% goes ex dividend Monday June, 14 2024 09:43 AM Niagara Moh Pwr 3.40 Pr 2024-06-14 09:43:51 ET More on Niagara Mohawk Power Corporation PFD 3.40% Dividend scorecard for Niagara Mohawk Power Corporation PFD 3.40% Financial information for Niagara Mohawk Power Corporation PFD 3.40% For further details see: Niagara Mohawk Power Corporation PFD 3.40% goes ex dividend Monday