X0202 4 2006-12-18 0 0000049826 ILLINOIS TOOL WORKS INC ITW 0001074607 ALDINGER WILLIAM F III 3600 WEST LAKE AVENUE GLENVIEW IL 60026 1 0 0 0 Common Stock 2006-12-18 4 A 0 171 46.77 A 15745 D Phantom Stock 0.00 1998-08-08 4 A 0 1126 1.00 A 1988-08-08 1988-08-08 Common Stock 2218 2218 D Includes deferred stock under the ITW Directors' Deferred Fee Plan. Includes 200 shares held by my wife as to which I disclaim beneficial ownership. Grant of 1,800 shares of restricted stock which have vested. Shares received as a result of the two-for-one stock split on May 25, 2006. This number was increased by 7,640 shares to reflect a correction due to a clerical error. Represents units of phantom stock under the Phantom Stock Plan for non-officers directors as of December 31, 2005. Each unit is equal in value to one share of common stock. The units are not transferable and have no voting rights. Additional units are credited in amounts equivalent to cash dividends paid on the common stock reported as of November 30, 2006. William F. Aldinger by James H. Wooten, Jr., Senior Vice President, General Counsel & Secretary, Attorney-In-Fact POA on File 2006-12-20