X0306 4 2023-01-23 0001109357 EXELON CORP EXC 0001895608 Quiniones Gil C 10 S DEARBORN STREET 54TH FLOOR CHICAGO IL 60603 0 1 0 0 CEO of Commonwealth Edison Common Stock 2023-01-23 4 M 0 3130 A 3130 D Common Stock 2023-01-23 4 F 0 1083 41.82 D 2047 D 2023 Restricted Stock Units 0 2023-01-23 4 A 0 9383 A Common Stock 9383 9383 D 2022 Restricted Stock Units 0 2023-01-23 4 M 0 3130 D Common Stock 3130 6258 D Common shares acquired from vested equity awards granted under the Exelon Long-term Incentive Plan (LTIP). Restricted stock unit (RSU) award granted under the Exelon LTIP. Award vests in 1/3 increments at the January or February meeting of the Exelon Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. The award accrues 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. Vesting of previously granted RSU award under the Exelon LTIP. See footnote #2 for details about the award's terms and vesting schedule. Balance includes 282 shares acquired during 2022 through automatic dividend reinvestment. Elizabeth M. Hensen, Attorney-in-Fact for Gil C Quiniones 2023-01-25