Form 4 Filing for AAON, INC.

Matthew Joseph Tobolski, CEO of AAON, INC., reported a transaction on March 12, 2026. He disposed of 413 shares of Common Stock, par value $.004, at a price of $91.51 per share. Following this transaction, he directly owns 9,378 shares. The filing also details indirect ownership through various trusts and a 401(k) plan, with holdings of 122,371 shares by spouse as trustee, 200,904 shares as trustee of trusts, and 2,638 shares in a 401(k) plan. Additionally, Tobolski holds exercisable stock options with varying prices and expiration dates.