X0407 4 2023-03-22 0001815849 ATI Physical Therapy, Inc. ATIP 0001867889 Oakes Augustus C/O ATI PHYSICAL THERAPY 790 REMINGTON BLVD. BOLINGBROOK IL 60440-4909 true Chief Information Officer false Class A Common Stock 2023-03-22 4 A 0 735294 0 D 911600 D Award of restricted stock units subject to stockholder approval of an amendment to the ATI Physical Therapy Inc.'s 2021 Equity Incentive Plan, under which the restricted stock units were granted. The stockholder approval vote is expected to occur at the Company's 2023 Annual Meeting. /s/John Lines as Attorney-in-Fact for Reporting Person 2023-03-24