 TULSA, Okla., April 30, 2021 GLOBE NEWSWIRE -- Today, Scott M. Asbjornson, Vice President, Finance and Chief Financial Officer CFO, notified AAON, Inc. the Company of his decision to retire from the Company to pursue other interests, effective immediately. Concurrently, the Companys Board of Directors has appointed Rebecca A. Thompson as Vice President, Finance and Chief Financial Officer, effective immediately. 