X0306 4 2016-02-22 false 0000051143 INTERNATIONAL BUSINESS MACHINES CORP IBM 0001624660 JETTER MARTIN IBM CORPORATION, C/O SECRETARY'S OFFICE NEW ORCHARD ROAD ARMONK NY 10504 false true false false Senior Vice President Common Stock 2016-02-22 4 I false 299.0207 133.77 A 4096.0442 D Common Stock 467.71 I spouse Intra-plan transfer into the IBM Stock Fund of the IBM 401(k) Plus Plan. The reporting person disclaims beneficial ownership of the securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. M. Clemens on behalf of M. J. Jetter 2016-02-23