Office Properties Income Trust

Office Properties Income Trust is a real estate investment trust (REIT) formed in 2009 under Maryland law. As of December 31, 2025, the company owned 122 properties directly, totaling approximately 17.1 million rentable square feet. Additionally, it held a 51% noncontrolling ownership interest in an unconsolidated joint venture that owned two properties, comprising approximately 0.3 million rentable square feet. The properties had an undepreciated carrying value of approximately $3.7 billion and a depreciated carrying value of approximately $2.9 billion as of December 31, 2025. The company's properties were leased to 212 different tenants as of December 31, 2025, with a weighted average remaining lease term of approximately 6.6 years, based on annualized rental income. The U.S. government is the largest tenant, accounting for approximately 17.2% of the company's annualized rental income as of December 31, 2025. Annualized rental income is defined as the annualized contractual base rents from tenants, plus straight line rent adjustments and estimated recurring expense reimbursements, excluding lease value amortization. The principal executive offices are located at Two Newton Place, 255 Washington Street, Suite 300, Newton, Massachusetts 02458-1634. On October 30, 2025, the company and certain subsidiaries initiated voluntary Chapter 11 bankruptcy proceedings in the United States Bankruptcy Court for the Southern District of Texas, Houston Division. This action was taken in connection with a Restructuring Support Agreement with certain holders of the 9.00% senior secured notes due September 2029, aiming to implement a court-supervised financial restructuring.