Caterpillar

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CATERPILLAR INC (CAT) CIK: 0000018230 --- Reporting Owner --- Name: Kaiser Jason CIK: 0002005183 Role: Officer (Group President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-04 | Code: F (Payment of exercise/tax) Shares: -368 | Price: $738.42 Total Value: $271,738.56 Shares Owned After: 9,594 | Ownership: D (Direct) Footnotes: [F1] Represents shares withheld from the reporting person to satisfy tax obligation arising from the vesting of restricted stock units granted on March 4, 2024. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] The information in this report is based on a 401(k) plan statement as of February 28, 2026. --- Footnotes (Complete Index) --- F1: Represents shares withheld from the reporting person to satisfy tax obligation arising from the vesting of restricted stock units granted on March 4, 2024. F2: The information in this report is based on a 401(k) plan statement as of February 28, 2026. --- Signature --- /s/ /s/ Nicole Puza, POA for Jason Kaiser (2026-03-06)