SEC Edgar version that includes the following exhibits: financial section of the IBM Annual Report 2005; powers of attorney; December 2005 Amendments to the IBM Executive Deferred Compensation Plan; the Supplemental Executive Retention Plan; Forms of LTTP Stock Option Award Agreement, Buy-First Stock Option Award Agreement, Restricted Stock Unit Agreement, Special Restricted Stock Unit Agreement, and Performance Stock Unit Award Agreement; and Certified Resolutions of the IBM Board of Directors authorizing execution of this report by Powers of Attorney.

Annual Report version that excludes the following exhibits: financial section of the IBM Annual Report 2005; powers of attorney; December 2005 Amendments to the IBM Executive Deferred Compensation Plan; the Supplemental Executive Retention Plan; Forms of LTTP Stock Option Award Agreement, Buy-First Stock Option Award Agreement, Restricted Stock Unit Agreement, Special Restricted Stock Unit Agreement, and Performance Stock Unit Award Agreement; and Certified Resolutions of the IBM Board of Directors authorizing execution of this report by Powers of Attorney.