X0202 4 2005-12-16 0 0001333513 DealerTrack Holdings, Inc. TRAK 0001342332 Jacobs Eric Douglas C/O DEALERTRACK HOLDINGS, INC. 1111 MARCUS AVENUE, SUITE M04 LAKE SUCCESS NY 11042 0 1 0 0 SVP, GC and Secretary Common Stock 2005-12-16 4 P 0 1000 17.00 A 21000 D Includes 10,000 shares of restricted common stock held directly by Mr. Jacobs and excludes 20,000 shares of common stock held indirectly by Mr. Jacobs, as Trustee for The Eric D. Jacobs Grantor Retained Annuity Trust, as initially disclosed on Mr. Jacobs' Form 3. /s/ Eric D. Jacobs 2005-12-20