X0101 4 2003-07-15 0 0000051143 INTERNATIONAL BUSINESS MACHINES CORP IBM 0001180459 MILLS STEVEN A 0 1 0 0 Senior Vice President Phantom Stock Unit 0 2003-07-15 4 A 0 8 0 A 1988-08-08 1988-08-08 Common Stock 8 21402 D Phantom stock units convert to the cash value of the company's common stock on a one-for-one basis. Acquisition of phantom stock units under the IBM Executive Deferred Compensation Plan. Distribution of phantom stock units under the IBM Executive Deferred Compensation Plan is deferred until separation from the company. D. Cummins for S. A. Mills by power-of-attorney 2003-07-16