X0202 4 2006-11-01 false 0000040211 GATX CORP GMT 0001077650 DAMMEYER RODNEY F 4350 LAJOLLA VILLAGE DRIVE, #980 SAN DIEGO CA 92122 true false false false Common Stock 2006-11-01 4 A false 431.9696 43.4 A 11566.6635 D Includes 57.5456 shares acquired pursuant to a dividend reinvestment feature of the GATX Directors' Phantom Stock Plan ("Phantom Stock Plan"). Includes that portion of the quarterly payment of the annual directors' fee (374.424 shares) credited to an account established for each director under the Phantom Stock Plan which in each case will be settled in common stock upon the expiration of the director's service on the Board. Lisa M. Ibarra, by Power of Attorney on behalf of Rod F. Dammeyer 2006-11-02