Stephen O. LeClair was elected a director of AAON in 2017 and serves on the Audit and Governance Committees. He served as Chief Executive Officer of Core & Main, Inc. (NYSE: CNM), the nation's largest distributor of water, sewer, storm and fire protection products, from August 2017 through March 2025 and currently serves as its Executive Chairman. He previously was President of HD Supply Waterworks from 2011 to 2017 and held various roles at General Electric from 1992 to 2005, and holds a mechanical engineering degree from Union College and an M.B.A. from the University of Louisville.