X0508 4 2025-09-30 0001122976 AVIENT CORP AVNT 0001875993 Green Neil AVIENT CORPORATION 33587 WALKER ROAD AVON LAKE OH 44012 1 0 Common Stock 2025-09-30 4 A 0 596 0 A 7679.595 D Common Stock 2025-09-30 4 A 0 596 0 A 7924.975 I Deferred Comp Plan Includes shares acquired pursuant to dividend reinvestment. Includes shares acquired pursuant to a dividend reinvestment feature of the Avient Corporation Deferred Compensation Plan for Non-Employee Directors. /s/ Robert K. James, Power of Attorney for Neil Green 2025-10-02