Core Insights - SL Green Realty Corp. has acquired a 39.48% interest in 800 Third Avenue for $5.1 million, achieving 100% ownership of the asset [1] - The existing mortgage of $177.0 million has been modified and extended to mature in February 2031, with a fixed interest rate of 5.03% until February 2029 [2] Company Overview - SL Green Realty Corp. is Manhattan's largest office landlord and operates as a fully integrated real estate investment trust (REIT), focusing on acquiring and managing commercial properties in Manhattan [4] - As of September 30, 2025, the company held interests in 53 buildings totaling 30.7 million square feet, including 27.1 million square feet of Manhattan buildings [4] Strategic Outlook - The transactions reflect SL Green's long-term commitment to well-located assets in Midtown Manhattan and its capability to execute loan modifications that enhance the maturity profile while maintaining favorable terms [3] - The property at 800 Third Avenue is strategically located near Grand Central Terminal and benefits from ongoing residential conversions in the area, which are expected to drive growth in the office sector [3]