Company Update

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 (Date of earliest event reported): April 7, 2026   CATERPILLAR INC. (Exact name of registrant as specified in its charter)   Delaware   1-768   37-0602744 (State or other jurisdiction of incorporation)   (Commission File Number)   (I.R.S. Employer Identification No.)   5205 N. O'Connor Blvd. , Suite 100 Irving , Texas   75039 (Address of principal executive offices)   (Zip Code)   Registrant’s telephone number, including area code: ( 972 ) 891-7700   Former name or former address, if changed since last report: N/A   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 which registered Common Stock ($1.00 par value) CAT The New York Stock Exchange 5.3% Debentures due September 15, 2035 CAT35 The New York Stock Exchange   Indicate by check mark whether the registrant is an emerging growth company as defined by Rule 405 of the Securities Act of 1933 (17 CFR §230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §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. ¨             Item 8.01. Other Events.   On April 7, 2026, the board of directors of Caterpillar Inc. (the “Company”) determined to nominate Lynn Good to be a director nominee of the Company for election at the Company’s 2026 Annual Meeting of Shareholders, with an effective date of appointment of August 1, 2026.    Item 9.01. Financial Statements and Exhibits.     (d) Exhibits:           The following is furnished as an exhibit to this report:           104 The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.         SIGNATURES   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.     CATERPILLAR INC.         April 13, 2026 By: /s/ Derek Owens       Derek Owens     Chief Legal Officer and General Counsel