WOOD DALE, Ill. (March 30, 2022) Power Solutions International Inc. announced that effective April 8, 2022, it will appoint current corporate controller Matthew Thomas as its interim chief financial officer (CFO) while the company conducts a search for a permanent chief financial officer.

Thomas will succeed Donald P. Klein, who will be departing the company to pursue other interests. Klein’s resignation is unrelated to any disagreement with the company. Klein will continue to serve in his current role until the effective date to ensure an orderly transition.   

Thomas, who possesses over 12 years of experience in the areas of accounting and finance, has served as PSI’s corporate controller since May 2021 with responsibilities for leading the accounting, internal/external reporting, and treasury areas.  He originally joined the Company as director of accounting in March 2018 and served in this capacity until June 2019. From June 2019 until May 2021, he served as the company’s assistant controller.

Prior to joining PSI, from November 2014 through March 2018, he served as senior manager, accounting at Akorn Inc., which was a publicly traded specialty pharmaceuticals company. Prior to that role, from July 2009 to November 2014, he was an audit supervisor with accounting firm Miller Cooper & Co., Ltd.

CEO Lance Arnett commented, “We are grateful for the contributions that Don has made over the past few years and wish him well in his future endeavors. We would also like to welcome Matt to the interim CFO role.”


The company intends to file its Form 10-K for the fiscal year ended Dec. 31, 2021, on March 31, 2022.