Company Update

Title of each class Capital stock, par value $.20 per share Trading symbol IBM Common Stock     UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549    FORM 8-K   CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934    Date of Report: January 29, 2026 (Date of earliest event reported)   INTERNATIONAL BUSINESS MACHINES CORPORATION (Exact name of registrant as specified in its charter)   New York   1-2360   13-0871985 (State of Incorporation)   (Commission File Number)   (IRS employer Identification No.)   One New Orchard Road     Armonk , New York   10504 (Address of principal executive offices)   (Zip Code)   914 - 499-1900 (Registrant’s telephone number)   Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:   ¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))   Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading symbol(s)   Name of each exchange on which registered Capital stock, par value $.20 per share   IBM   New York Stock Exchange         NYSE Chicago 0.300% Notes due 2026   IBM 26B   New York Stock Exchange 1.250% Notes due 2027   IBM 27B   New York Stock Exchange 3.375% Notes due 2027   IBM 27F   New York Stock Exchange 0.300% Notes due 2028   IBM 28B   New York Stock Exchange 1.750% Notes due 2028   IBM 28A   New York Stock Exchange 1.500% Notes due 2029   IBM 29   New York Stock Exchange 0.875% Notes due 2030   IBM 30A   New York Stock Exchange 2.900% Notes due 2030   IBM 30C   New York Stock Exchange 1.750% Notes due 2031   IBM 31   New York Stock Exchange 3.625% Notes due 2031   IBM 31B   New York Stock Exchange 0.650% Notes due 2032   IBM 32A   New York Stock Exchange 3.150% Notes due 2033   IBM 33A   New York Stock Exchange 1.250% Notes due 2034   IBM 34   New York Stock Exchange 3.750% Notes due 2035   IBM 35   New York Stock Exchange 3.450% Notes due 2037   IBM 37   New York Stock Exchange 4.875% Notes due 2038   IBM 38   New York Stock Exchange 1.200% Notes due 2040   IBM 40   New York Stock Exchange 4.000% Notes due 2043   IBM 43   New York Stock Exchange 3.800% Notes due 2045   IBM 45A   New York Stock Exchange 6.22% Debentures due 2027   IBM 27   New York Stock Exchange 6.50% Debentures due 2028   IBM 28   New York Stock Exchange 5.875% Debentures due 2032   IBM 32D   New York Stock Exchange 7.00% Debentures due 2045   IBM 45   New York Stock Exchange 7.125% Debentures due 2096   IBM 96   New York Stock Exchange   Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).   Emerging growth company ¨   If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨             Financial Statements and Exhibits.   This Current Report on Form 8-K is being filed to incorporate by reference into Registration Statement No. 333-276739 on Form S-3, effective January 29, 2024, the documents included as (1) Exhibits 1.1, 4.1, 4.2, 4.3 and 4.4 relating to €3,500,000,000 aggregate principal amount of debt securities of the Registrant (the “Euro Notes”), (2) Exhibits 1.2, 4.5, 4.6, 4.7, 4.8 and 4.9 relating to $3,250,000,000 aggregate principal amount of debt securities of the Registrant (the “USD Notes” and, together with the Euro Notes, the “Notes”) and (3) Exhibits 5.1 and 23.1 regarding the Notes. The Euro and the USD Notes were offered by means of separate prospectus supplements.   Item 9.01. Financial Statements and Exhibits.   (d) Exhibits   Exhibit  No.   Description of Exhibit 1.1   Underwriting Agreement dated January 29, 2026 among International Business Machines Corporation and Citigroup Global Markets Limited, BNP PARIBAS, Deutsche Bank AG, London Branch, Goldman Sachs & Co. LLC, HSBC Bank plc, Merrill Lynch International, Mizuho International plc, Canadian Imperial Bank of Commerce, London Branch, Société Générale, TD Global Finance unlimited company, Academy Securities, Inc. and Cabrera Capital Markets LLC, as the Underwriters 1.2   Underwriting Agreement dated January 29, 2026 among International Business Machines Corporation and Citigroup Global Markets Inc., BNP Paribas Securities Corp., BofA Securities, Inc., Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, HSBC Securities (USA) Inc. and Mizuho Securities USA LLC, as the Representatives of the Underwriters 4.1   Form of 3.000% Note due 2031 4.2   Form of 3.450% Note due 2034 4.3   Form of 3.850% Note due 2038 4.4   Form of Floating Rate Note due 2028 4.5   Form of 4.000% Note due 2029 4.6   Form of 4.300% Note due 2031 4.7   Form of 4.600% Note due 2033 4.8   Form of 4.950% Note due 2036 4.9   Form of 5.800% Note due 2056 5.1   Opinion of Jane P. Edwards, Vice President, Assistant General Counsel and Secretary regarding the Notes 23.1   Consent of Jane P. Edwards, Vice President, Assistant General Counsel and Secretary (included in Exhibit 5.1) 104   Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document   IBM’s web site (www.ibm.com) contains a significant amount of information about IBM, including financial and other information for investors (www.ibm.com/investor/). IBM encourages investors to visit its various web sites from time to time, as information is updated and new information is posted.         SIGNATURE   Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.   Date: February 2, 2026         By: /s/ Brien Wierzchowski     Brien Wierzchowski     Vice President and Treasurer