X0306 4 2023-02-21 0000775158 OSHKOSH CORP OSK 0001699929 Freeders James C C/O OSHKOSH CORPORATION 1917 FOUR WHEEL DRIVE OSHKOSH WI 54902 0 1 0 0 Senior VP and Controller Common Stock 2023-02-21 4 M 0 911.458 A 5850.752 D Common Stock 2023-02-21 4 F 0 477 89.15 D 5376.392 D Restricted Stock Units 2023-02-21 4 M 0 911.458 0 D 2023-02-21 Common Stock 911.458 1822.914 D Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock. Amount includes a total of 654.26 shares acquired under the Oshkosh Corporation Employee Stock Purchase Plan through February 21, 2023. Between November 17, 2022 and February 21, 2023, the reporting person acquired 2.64 shares under the Oshkosh Corporation Employee Stock Purchase Plan. Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/21/2023. Ignacio A. Cortina, for James C. Freeders 2023-02-22