X0306 4/A 2022-06-16 2022-06-21 0001815849 ATI Physical Therapy, Inc. ATIP 0001868736 Rhodes Brent Michael C/O ATI PHYSICAL THERAPY INC. 790 REMINGTON BOULEVARD BOLINGBROOK IL 60440 true Principal Accounting Officer Class A common stock 2022-06-16 4 F 0 700 1.79 D 84448 D Shares withheld by the Issuer to satisfy tax withholding obligations upon vesting. The previous form 4, filed 6/21/2022 is being amended to correct an administrative error which misreported the amount of securities beneficially owned. /s/ Erik Kantz, as Attorney-In-Fact for Reporting Person. 2022-06-21