X0508 4 2024-02-20 0000775158 OSHKOSH CORP OSK 0001434515 Pfeifer John C C/O OSHKOSH CORPORATION 1917 FOUR WHEEL DRIVE OSHKOSH WI 54902 0 1 0 0 President & CEO 0 Common Stock 2024-02-20 4 M 0 11584.593 A 75602.761 D Common Stock 2024-02-20 4 F 0 5439 108.25 D 70163.761 D Restricted Stock Units 2024-02-20 4 M 0 11584.593 0 D 2024-02-20 Common Stock 11584.593 23170.204 D Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock. The Amount of Securities Beneficially Owned includes shares acquired pursuant to dividend reinvestments exempt from Section 16 pursuant to Rule 16a-11. The Amount of Securities Beneficially Owned has also been decreased to reflect the fact that the Reporting Person's most recent filing erroneously included 612.787 shares relating to dividend equivalents on unvested Restricted Stock Units. Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/21/2023. Ignacio A. Cortina, for John C. Pfeifer 2024-02-22