X0306 4 2013-01-28 0 0001135971 PEPCO HOLDINGS INC POM 0001502884 REESE HALLIE M 701 NINTH STREET, NW WASHINGTON DC 20068 0 1 0 0 Vice President Common Stock 2921 I By 401-k plan Common Stock 2013-01-28 4 F 0 611 19.23 D 18686 D Includes 6,343 restricted stock units (RSUs) awarded under the Long-Term Incentive Plan which may be settled solely by delivery of one share of PHI common stock per RSU (and may not be settled in cash), including pursuant to the crediting of dividend equivalents, held by the reporting person as of the date of this report. Hallie M. Reese by Jane K. Storero, Attorney-in-Fact 2013-01-30