Oshkosh Defense Announces Leadership Transition

October 6, 2026

OSHKOSH, WI — Oshkosh Defense announced today that Pat Williams, Chief Programs Officer, will retire at the end in February after more than 21 years with Oshkosh Corporation. Jeff Heggemeier, currently Vice President and General Manager for Oshkosh Delivery, will assume the VP/GM Oshkosh Defense role.

Pat Williams

Williams has led the defense business since 2022 and previously served as Vice President and General Manager of Army and Marine Corps programs. He joined Oshkosh in 2005 and has held leadership roles of increasing responsibility across program management, aftermarket, and sustainment operations. His assignments include managing the Theater Provided Equipment Refurbishment (TPER) program in Kuwait during combat operation in Iraq and leading the MRAP All-Terrain Vehicle (MATV) Program that delivered life-saving capabilities in Afghanistan.

“Pat has been a trusted partner to our customers and a strong leader for our team,” said Steve Nordlund, President, Oshkosh Transport Segment and Executive Vice President, Oshkosh Corporation. “His focus on program execution and customer relationships has been central to our success, and we’re grateful for his contributions.”

Jeff Heggemeier

Heggemeier brings extensive defense sector and technical experience to the role. He retired from Air Force civilian service after a career developing and fielding directed energy technology and systems, earning the Air Force Outstanding Civilian Career Service Award. He is an Afghanistan combat veteran — in 2012, he led the deployment of counter-IED technology integrated onto an Oshkosh LVSR in Helmand Province. He currently serves as Deputy Assistant Adjutant General – Air for the New Mexico Air National Guard with the rank of Colonel.

At Oshkosh, Heggemeier has served as Vice President of Engineering for the Transport Segment and, most recently, Vice President and General Manager for Oshkosh Delivery. He holds a bachelor’s degree in physics from the University of St. Thomas and a Master of Engineering and Doctorate in Electrical Engineering from the University of Minnesota.

“Jeff has a unique combination of technical expertise, operational experience, and firsthand understanding of what our platforms mean to the Warfighter,” said Nordlund. “He’s the right leader to continue building on the strong foundation Pat has established.”

Matt Schreiner, currently Vice President of Global Operations, Engineering, and Supply Chain for the Oshkosh Transport Segment, will assume Heggemeier’s role as Vice President and General Manager of Oshkosh Delivery.

About Oshkosh Defense

Oshkosh Defense, an Oshkosh Corporation business [NYSE: OSK], delivers adaptable, connected, and survivable systems critical to the modernization and readiness of the U.S. and its allied forces. As a trusted mobility integrator, Oshkosh brings advanced vehicles, intelligent systems, and mission-critical technologies together into unified solutions built for evolving operational demands. Combining defense expertise with commercial scale, Oshkosh accelerates innovation from development through deployment. And because the mission does not end at fielding, Oshkosh provides global sustainment, lifecycle support, and aftermarket solutions that keep fleets ready while advancing the future of defense mobility. Learn more at oshkoshdefense.com.

About Oshkosh Corporation

At Oshkosh (NYSE: OSK), we make innovative, purpose-built vehicles and equipment to help everyday heroes advance communities around the world. Headquartered in Wisconsin, Oshkosh Corporation employs over 19,000 team members worldwide, all united behind a common purpose: to make a difference in people’s lives. Oshkosh products can be found in more than 150 countries under the brands of JLG®, Pierce®, MAXIMETAL, Oshkosh® S-Series™, McNeilus®, IMT®, Jerr-Dan®, Frontline™ Communications, Oshkosh® Airport Products, Oshkosh AeroTech™, Oshkosh® Defense and Pratt Miller. For more information, visit oshkoshcorp.com.

Forward Looking Statements

This news release contains statements that the Company believes to be “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including, without limitation, statements regarding the Company’s future financial position, business strategy, targets, projected sales, costs, earnings, capital expenditures, debt levels and cash flows, and plans and objectives of management for future operations, are forward-looking statements. When used in this news release, words such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe,” “should,” “project” or “plan” or the negative thereof or variations thereon or similar terminology are generally intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, assumptions, and other factors, some of which are beyond the Company’s control, which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include risks related to the Company’s ability to successfully execute on its strategic road map and meet its long-term financial goals. Additional information concerning these and other factors is contained in the Company’s filings with the Securities and Exchange Commission. All forward-looking statements speak only as of the date of this news release. The Company assumes no obligation, and disclaims any obligation, to update information contained in this news release. Investors should be aware that the Company may not update such information until the Company’s next quarterly earnings conference call, if at all.