Material Event (Form 8-K)

Item 8.01. Other Events.

On May 12, 2025, Caterpillar Inc. (the "Company") entered into an Underwriting Agreement (the "Underwriting Agreement") with Barclays Capital Inc., Citigroup Global Markets Inc. and SG Americas Securities, LLC, as representatives of the several underwriters named therein (the "Underwriters"), with respect to the offering and sale of $1.7 billion aggregate principal amount of the Company's 5.200% Senior Notes due 2035 (the "2035 Notes") and $300 million aggregate principal amount of the Company's 5.500% Senior Notes due 2055 (the "2055 Notes" and together with the 2035 Notes, the "Notes") under the Company's effective shelf registration statement on Form S-3 (File No. 333-283791) (the "Registration Statement"). The Underwriting Agreement contains customary representations, warranties and agreements by the Company, and customary closing conditions, indemnification rights and termination provisions.

The sale of the Notes closed on March 15, 2025. The Notes are unsecured obligations of the Company and rank equally with all of the Company's other unsecured senior indebtedness. The Company intends to use the net proceeds of the sale of the Notes for general corporate purposes, which may include the repayment of existing indebtedness.

The Notes were issued pursuant to the Indenture, dated as of May 1, 1987 (as amended and supplemented from time to time, the "Indenture"), between the Company and U.S. Bank Trust Company, National Association, as successor trustee. The Notes were issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. The amount of interest payable on the Notes will be computed on the basis of a 360-day year of twelve 30-day months. The Company may, at its option, redeem the Notes of either series, at any time in whole or from time to time in part, at the redemption prices set forth in the Notes of such series.

The 2035 Notes will bear interest at the rate of 5.200% per year and will mature on May 15, 2035. The 2055 Notes will bear interest at the rate of 5.500% per year and will mature on May 15, 2055. Interest on each series of Notes will be payable on May 15 and November 15 of each year, commencing on November 15, 2025, to the persons in whose names such Notes are registered on the fifteenth calendar day immediately preceding the relevant interest payment date (whether or not a business day).

The foregoing descriptions of the Underwriting Agreement and the Notes are qualified in their entirety by reference to the complete terms and conditions of the Underwriting Agreement and the forms of the 2035 Notes and 2055 Notes, which are attached hereto as Exhibits 1.1, 4.1 and 4.2, respectively, and incorporated herein by reference.

The Underwriting Agreement has been included to provide investors and security holders with information regarding its terms and conditions. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of that agreement and as of specific dates, and were solely for the benefit of the parties to the Underwriting Agreement. Investors should not rely on the representations, warranties and covenants or any description thereof as characterizations of the actual state of facts or condition of the Company or any of its subsidiaries or affiliates. Moreover, information concerning the subject matter of the representations, warranties and covenants may change after the date of the Underwriting Agreement, which subsequent information may or may not be fully reflected in public disclosures by the Company.

The following exhibits are filed with this Current Report on Form 8-K and are incorporated by reference herein and into the Registration Statement: (i) the Underwriting Agreement, (ii) the Form of 5.200% Senior Notes due 2035, (iii) the Form of 5.500% Senior Notes due 2055 and (iv) the legal opinion of Nicole M. Puza, Associate General Counsel and Corporate Secretary to the Company, and the related consent.