PORTLAND GENERAL ELECTRIC COMPANY 121 SW Salmon Street Portland, Oregon 97204 SUPPLEMENT TO DEFINITIVE PROXY STATEMENT RELATING TO THE ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON FRIDAY, APRIL 22, 2022 On March 8, 2022, Portland General Electric Company (the “Company”) filed a definitive proxy statement (the “Proxy Statement”) with the Securities and Exchange Commission,…