Empire State Realty OP(OGCP) - 2025 Q3 - Quarterly Report

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36106 EMPIRE STATE REALTY OP, L.P. Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2025 UNITED STATES SECURITIES AND EXCHANGE COMMISSION (Exact name of Registrant as specified in its charter) (State or other jurisdiction of incorporation o ...