X0306 4 2022-02-21 false 0000051143 INTERNATIONAL BUSINESS MACHINES CORP IBM 0001629898 KRISHNA ARVIND IBM CORPORATION ONE NEW ORCHARD ROAD ARMONK NY 10504 true true false false Chairman and CEO Rst. Stock Unit 0.00 2022-02-21 4 A false 20655.00 0.00 A Common Stock 20655.00 20655.00 D Emp. Stock Option (right to buy) 124.515 2022-02-21 4 A false 144537.00 0.00 A 2023-02-21 2032-02-20 Common Stock 144537.00 144537.00 D Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,163 of these units on February 21, 2023, 5,163 of these units on February 21, 2024, 5,163 of these units on February 21, 2025, and 5,166 of these units on February 21, 2026. 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. D. Glowienka on behalf of A. Krishna 2022-02-23