RMR GROUP INC.

The RMR Group Inc., or RMR Inc., is a holding company and substantially all of its business is conducted by its majority owned subsidiary, The RMR Group LLC, or RMR LLC. RMR Inc. is a Maryland corporation and RMR LLC is a Maryland limited liability company. RMR Inc. serves as the sole managing member of RMR LLC and, in that capacity, operates and controls the business and affairs of RMR LLC. In this Annual Report on Form 10-K, unless otherwise indicated, we , us and our refers to RMR Inc. and its direct and indirect subsidiaries, including RMR LLC. As of September 30, 2025, RMR Inc. owned 16,063,495 class A membership units of RMR LLC, or Class A Units, and 1,000,000 class B membership units of RMR LLC, or Class B Units. The aggregate RMR LLC membership units RMR Inc. owns represent approximately 53.2% of the economic interest of RMR LLC. A wholly owned subsidiary of ABP Trust owns 15,000,000 redeemable Class A Units, representing approximately 46.8% of the economic interest of RMR LLC. Adam Portnoy, the Chair of our Board, one of our Managing Directors and our President and Chief Executive Officer, is the sole trustee, an officer and the controlling shareholder of our controlling shareholder, ABP Trust, and owns all of ABP Trust’s voting securities and a majority of the economic interest of ABP Trust.