ATI Physical Therapy, Inc., a prominent provider of outpatient physical therapy and rehabilitation services, has announced its transition from public to private ownership. This move follows the completion of a merger led by private investment firms Knighthead Capital Management and Marathon Asset Management, alongside a consortium of existing stockholders holding over 90% of the voting shares. The merger will enable ATI to enhance its operational flexibility and focus on long-term growth, while maintaining its commitment to delivering high-quality, patient-centered care across its nationwide clinic network. ATI will continue to be headquartered in Downers Grove, Illinois, and operate under its current brand and leadership team.