X0303 4 2011-06-06 0 0001041657 RADIO ONE, INC. ROIA/ROIAK 0001162953 ARMSTRONG D GEOFFREY 5900 PRINCESS GARDEN PARKWAY 7TH FLOOR LANHAM MD 20706 1 0 0 0 Opton 1.87 2011-06-06 4 A 0 13369 0.00 A 2012-06-06 2021-06-06 Class D 13369 207850 D Options to purchase Class D common stock that will vest in two equal annual installments on the anniversary of the grant dates: June 6, 2012 and June 6, 2013. The total represents all shares held by the reporting person across all classes of Radio One, Inc. stock; Classes A, B, C, and D. The reporting person beneficially owns a total of 207,850 shares of Radio One Inc. stock as follows: (1) 10,000 shares of Class A common stock, (2) 137,730 shares of Class D common stock, and (3) options to purchase 60,120 shares of Class D common stock. Linda J. Vilardo, Attorney-In-Fact 2011-06-09