X0508 4 2024-07-01 false 0000051143 INTERNATIONAL BUSINESS MACHINES CORP IBM 0002026599 Robinson Anne IBM CORPORATION ONE NEW ORCHARD ROAD ARMONK NY 10504 false true false false Senior Vice President false Rst. Stock Unit 0.00 2024-07-01 4 A false 20592.00 0.00 A Common Stock 20592.00 20592.00 D Rst. Stock Unit 0.00 2024-07-01 4 A false 5648.00 0.00 A Common Stock 5648.00 5648.00 D Emp. Stock Option (right to buy) 174.94 2024-07-01 4 A false 28240.00 0.00 A 2025-07-01 2034-06-30 Common Stock 28240.00 28240.00 D Upon lapse of the restrictions, these units are payable in cash or the company's stock. The restrictions lapse for 8,825 of these units on July 1, 2025, 5,883 of these units on July 1, 2026, and 5,884 of these units on July 1, 2027. Upon lapse of the restrictions, these units are payable in cash or the company's stock. The restrictions lapse for 1,412 of these units on July 1, 2025, 1,412 of these units on July 1, 2026, 1,412 of these units on July 1, 2027, and 1,412 of these units on July 1, 2028. These derivative securities vest in four equal annual installments, the first vesting being on the date exercisable shown. All expire on the expiration date shown above. L. Mallardi on behalf of A. Robinson 2024-07-03