OPI is a national REIT focused on owning and leasing office properties to high credit quality tenants in markets throughout the United States. As of June 30, 2025, approximately 59% of OPI's revenues were from investment grade rated tenants. OPI owned 125 properties as of June 30, 2025, with approximately 17.3 million square feet located in 29 states and Washington, D.C. In 2024, OPI was named as an Energy Star Partner of the Year for the seventh consecutive year. OPI is managed by The RMR Group (Nasdaq: RMR), a leading U.S. alternative asset management company with approximately $40 billion in assets under management as of June 30, 2025, and more than 35 years of institutional experience in buying, selling, financing and operating commercial real estate. OPI is headquartered in Newton, MA. On October 30, 2025, Office Properties Income Trust, along with its affiliates, filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of Texas.