OSK · Oshkosh Corp

Common Stock is granted to the Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan ("Stock 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 07/14/2026.

Shares were sold pursuant to a Rule 10b5-1 plan adopted on February 3, 2026, with the sale proceeds to be used to satisfy Mr. Palmer's estimated income tax obligations associated with the shares received on May 5, 2026.

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned has been adjusted to remove a calculation error on the last Form 4 filed May 9, 2024 that incorrectly doubled the common stock award for this filer. It also includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan.

The amount beneficially owned includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Common Stock granted to Reporting Person pursuant to the Company's 2024 Incentive Stock and Awards Plan and deferred by Reporting Person pursuant to the Company's Deferred Compensation Plan for Directors and Executive Officers.

The amount beneficially owned includes deferred shares acquired pursuant to dividend reinvestments in exempt transactions not required to be reported pursuant to Section 16(a).

Represents weighted average price. Individual sales by lot ranged from $166.455 to $170.000. The Company will provide, upon request by the SEC staff, the full information regarding the number of shares purchased or sold at each separate price.

The reported transaction is a gift for which the reporting person received no consideration.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/20/2023.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Options (right to buy) granted pursuant to the Company's Stock Plan.

Options vest in one-third (1/3) annual increments commencing on 11/20/2027.

Shares issued pursuant to the TSR-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/20/2023.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/20/2023.

Shares issued pursuant to the TSR-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Shares issued pursuant to the ROIC-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Shares issued pursuant to the TSR-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Shares issued pursuant to the TSR-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Shares issued pursuant to the TSR-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Shares issued pursuant to the ROIC-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Shares issued pursuant to the ROIC-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Restricted Stock Unit Award vests in one-third (1/3) annual increments commencing on 2/20/2023.

Each Restricted Stock Unit represents a contingent right to receive one share of OSK common stock.

Shares issued pursuant to the ROIC-based Performance Shares granted under the Company's 2024 Incentive Stock and Awards Plan for the performance period January 1, 2023 through December 31, 2025.