Proterra Inc. announced that Jack Allen's term as Non-Executive Chairman and Member of Proterra's Board of Directors will expire at the company's annual stockholders' meeting and he will retire from the Board. Proterra's Board of Directors has reduced the size of the board from nine to eight directors effective upon the expiration of Mr. Allen's term, and appointed Roger M. Nielsen as the company's new Chairman of the Board, as of the annual meeting. Mr. Allen joined Proterra's Board of Directors in 2017 after more than 30 years at Navistar International, the global truck and bus company.

In addition to his role as Board Chairman, Mr. Allen served as Proterra's Chief Executive Officer from March 2020 through December 2021. Mr. Allen subsequently assumed the role of Non-Executive Chairman on Proterra's Board of Directors following his retirement as Proterra CEO in late 2021. Roger Nielsen was appointed to the Proterra Board of Directors in 2022 following his retirement from Daimler Truck, a leading global commercial vehicle manufacturer after a 35-year career that included serving as President and CEO of Daimler Truck North America.

As a Proterra Board Director, Mr. Nielsen also serves on its Audit Committee.