X0306 4 2016-03-23 1 0001135971 PEPCO HOLDINGS LLC POM 0001399068 Krumsiek Barbara J C/O PEPCO HOLDINGS, INC. 701 - 9TH STREET, NW, EP-1300 WASHINGTON DC 20068 true false false false Common Stock 2016-03-23 4 D 0 23687.2701 27.25 D 0 D Phantom Stock 2016-03-23 4 D 0 22119.6607 27.25 D Common Stock 22119.6607 0 D In connection with the consummation of the merger (the Merger) of a wholly owned subsidiary of Exelon Corporation with and into Pepco Holdings, Inc. (PHI) on March 23, 2016, each share of PHI common stock was canceled and converted into the right to receive $27.25 in cash, without interest. Includes director awards of 5,879.2701 restricted stock units (RSUs) previously granted under the 2012 Long-Term Incentive Plan, the settlement of which (including related dividend equivalents) has been deferred by the reporting person until January 31, 2018. In connection with the Merger, each phantom share was cancelled and converted into the right to receive $27.25. /s/ Jane K. Storero, Attorney-in-Fact 2016-03-24