X0508 4 2024-06-08 false 0000051143 INTERNATIONAL BUSINESS MACHINES CORP IBM 0001837510 LAMOREAUX NICKLE JACLYN IBM CORPORATION ONE NEW ORCHARD ROAD ARMONK NY 10504 false true false false Senior Vice President false Common Stock 2024-06-08 4 M false 527.00 0.00 A 27649.936 D Common Stock 2024-06-08 4 F false 270.00 169.71 D 27379.936 D Common Stock 2024-06-08 4 M false 1376.00 0.00 A 28755.936 D Common Stock 2024-06-08 4 F false 703.00 169.71 D 28052.936 D Rst. Stock Unit 0.00 2024-06-08 4 M false 527.00 0.00 D Common Stock 527.00 0.00 D Rst. Stock Unit 0.00 2024-06-08 4 M false 1376.00 0.00 D Common Stock 1376.00 1379.00 D On 06/08/20, the reporting person was granted 2,030 RSUs, 507 of which vested on 06/08/21, 507 of which vested on 06/08/22, 507 of which vested on 06/08/23, and 509 of which vested on 06/08/24. In connection with the spin-off of Kyndryl Holdings, Inc. on November 3, 2021, unvested Issuer restricted stock units were adjusted to reflect additional restricted stock units, which additional restricted stock units are included in the figures above. These units were payable in cash or the company's common stock upon the lapse of the restrictions on the transaction date shown. Release of restricted stock units. On 06/08/21, the reporting person was granted 5,330 RSUs, 1,332 of which vested on 06/08/22, 1,332 of which vested on 06/08/23, 1,332 of which vested on 06/08/24, and 1,334 of which will vest on 06/08/25. In connection with the spin-off of Kyndryl Holdings, Inc. on November 3, 2021, unvested Issuer restricted stock units were adjusted to reflect additional restricted stock units, which additional restricted stock units are included in the figures above. L. Mallardi on behalf of N. J. LaMoreaux 2024-06-11