AAON Director/10% Owner Norman Asbjornson Disposes of 189,441 Shares via Gifts

This Form 4 filing reports that Norman H. Asbjornson, a director and greater than 10% owner of AAON, Inc., disposed of 189,441 shares of common stock through gifts on May 29, 2026. The transactions involved 101,441 shares gifted from trusts (leaving 11,582,401 shares in those entities) and 88,000 shares gifted from a private foundation (leaving 1,201,290 shares). Asbjornson retains direct ownership of 98,794 shares and indirect ownership of 10,837 shares through a 401(k) plan. He also holds substantial stock options with various expiration dates through 2031. The filing represents routine reporting of insider transactions required by Section 16 of the Securities Exchange Act.