AAON Chief Accounting Officer Rebecca Thompson Sells 4,230 Shares at $143.42

Rebecca Thompson, Chief Accounting Officer of AAON, Inc., filed a Form 4 reporting the sale of 4,230 shares of common stock on June 2, 2026, at a price of $143.42 per share. The transaction was conducted through a 401(k) plan, resulting in the complete disposition of her indirect holdings in that account. Following the sale, Thompson still holds 27,681 shares directly. The filing also discloses her extensive stock option holdings totaling 144,600 options across multiple grant years with exercise prices ranging from $27.58 to $91.51. The filing was submitted late due to administrative delay, as noted in the remarks section.