X0508 4 2026-02-16 0000775158 OSHKOSH CORP OSK 0001808096 Pack Michael E C/O OSHKOSH CORPORATION 1917 FOUR WHEEL DRIVE OSHKOSH WI 54902 0 1 0 0 EVP & Pres, Vocational 0 Common Stock 2026-02-17 4 M 0 2751.053 168.47 A 34928.971 D Common Stock 2026-02-17 4 F 0 1317 168.47 D 33611.971 D Restricted Stock Units 2026-02-16 4 A 0 5553 0 A Common Stock 5553 5553 D Restricted Stock Units 2026-02-17 4 M 0 2751.053 0 D Common Stock 2751.053 5502.104 D Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock. The amount beneficially owned includes shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a) and also includes 1,243.16 shares acquired under the Oshkosh Corporation Employee Stock Purchase Plan through 12/31/2025. Between 2/19/2025 and 12/31/2025, the reporting person acquired 43.591 shares under the Oshkosh Corporation Employee Stock Purchase Plan. Restricted Stock Unit Award granted pursuant to the Company's Stock Plan. Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/16/2027. Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/17/2026. Ignacio A. Cortina, for Michael E. Pack 2026-02-18