X0508 4 2026-02-19 0000775158 OSHKOSH CORP OSK 0001861440 Iyengar Jayanthi C/O OSHKOSH CORPORATION 1917 FOUR WHEEL DRIVE OSHKOSH WI 54902 0 1 0 0 EVP, Chief Technology Officer 0 Common Stock 2026-02-19 4 M 0 870.069 170.490 A 24345.907 D Common Stock 2026-02-19 4 F 0 380 170.490 D 23965.907 D Restricted Stock Units 2026-02-19 4 M 0 870.069 0 D 2026-02-19 Common Stock 870.069 870.072 D Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock. The Amount of Securities Beneficially Owned has been decreased to reflect the fact that the Reporting Person's most recent filing erroneously included 43.615 shares relating to dividend equivalents on unvested Restricted Stock Units. The amount beneficially owned includes shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a). Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/19/2025. Ignacio A. Cortina, for Jayanthi Iyengar 2026-02-20