X0306 4 2013-07-18 0 0001041657 RADIO ONE, INC. ROIA/ROIAK 0001162953 ARMSTRONG D GEOFFREY 5900 PRINCESS GARDEN PARKWAY 7TH FLOOR LANHAM MD 20706 1 0 0 0 Class D common stock 2013-07-18 2013-06-14 4 A 0 21929 2.28 A 229779 D Restricted shares of Class D common stock that will vest in two equal annual installments on the anniversary of the grant date: June 14, 2014 and June 14, 2015. The reporting person beneficially owns a total of 229,779 shares of Radio One, Inc. stock as follows: (1) 10,000 shares of Class A common stock, and (2) 219,779 shares of Class D common stock. Linda J. Vilardo, Attorney-In-Fact 2013-07-22