X0206 3 2022-02-01 0 0001109357 EXELON CORP EXC 0001908625 Littleton Gayle 10 S DEARBORN STREET 54TH FLOOR CHICAGO IL 60603 0 1 0 0 EVP & General Counsel Common stock 2184 D 2021 Restricted Stock Units Common stock 6548 D Restricted Stock Unit Award 11/09/2020 Common stock 20834 D Previously granted restricted stock unit (RSU) award under the Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award. Restricted stock unit award granted pursuant to the Exelon Long Term Incentive Plan. The award accrues quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board. All shares will cliff vest on December 31, 2023. Elizabeth M Hensen, Attorney-in-fact for Gayle E. Littleton 2022-02-04