X0202 4 2007-08-08 0 0001333513 DealerTrack Holdings, Inc. TRAK 0001342016 ONeil Mark F C/O DEALERTRACK HOLDINGS, INC. 1111 MARCUS AVENUE, SUITE M04 LAKE SUCCESS NY 11042 1 1 0 0 Chairman of Board, Pres. & CEO Common Stock 2007-08-08 4 A 0 10000 0.00 A 312280 D Common Stock 50583 I By Spouse Common Stock 90686 I as Trustee for The Mark F. O'Neil Qualified Grantor Retained Annuity Trust Non-Qualified Stock Option (right to buy) 38.98 2007-08-08 4 M 0 10000 0.00 A 2017-08-07 Common Stock 10000 10000 D 25% of the shares of restricted common stock will vest yearly from August 8, 2007, such that 100% of the shares will be fully vested on August 8, 2011. Includes 261,250 shares of restricted common stock. 25% of the shares subject to the option will vest on August 8, 2008, and 1/36th of the remaining shares subject to the option will vest each month thereafter, such that 100% of the shares subject to the option will be fully vested on August 8, 2011. /s/ Eric D. Jacobs as attorney-in-fact for Mark F. O'Neil 2007-08-09