X0202 4 2007-02-02 0 0001333513 DealerTrack Holdings, Inc. TRAK 0001342884 Blair John Allen C/O DEALERTRACK HOLDINGS, INC. 1111 MARCUS AVENUE, SUITE M04 LAKE SUCCESS NY 11042 0 1 0 0 * Please see below Common Stock 2007-02-02 4 S 0 500 28.14 D 196049 D Common Stock 2007-02-02 4 S 0 500 28.04 D 195549 D Common Stock 2007-02-02 4 S 0 1000 27.91 D 194549 D Common Stock 2007-02-02 4 S 0 500 27.89 D 194049 D Common Stock 2007-02-02 4 S 0 500 27.81 D 193549 D Common Stock 2007-02-02 4 S 0 500 27.78 D 193049 D Common Stock 2007-02-02 4 S 0 500 27.75 D 192549 D Common Stock 2007-02-02 4 S 0 500 27.72 D 192049 D Common Stock 2007-02-02 4 S 0 500 27.69 D 191549 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 6, 2006. Includes 26,750 shares of restricted common stock. Mr. Blair is the Chief Executive Officer of Automotive Lease Guide (alg), Inc. /s/ Eric D. Jacobs as attorney-in-fact for John Allen Blair 2007-02-04