0001109357 2021-01-26 2021-01-26 PA 10 South Dearborn Street P.O. Box 805379 Chicago IL 60680-5379 (800) 483-3220 false 0001109357 false 8-K 2021-01-26 001-16169 EXELON CORPORATION 23-2990190 PA 10 South Dearborn Street P.O. Box 805379 Chicago IL 60680-5379 (800) 483-3220 false false false false Common Stock, without par value EXC NASDAQ false