of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Entry into a Material Definitive Agreement. On April 15, 2026, Empire State Realty Trust, Inc. (the "Company") and Empire State Realty OP, L.P. (the "Operating Partnership"), the operating partnership subsidiary of the Company, entered into a Note Purchase Agreement with the purchasers named therein (the "Purchase Agreement") in connection with a private placement of $130,000,000 aggregate principal amount of the Operating Partnership's 5.99% Series M Senior Notes due July 15, 2032 (the "Note…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Chief Accounting Officer and principal accounting officer — Jean Sutherland: Jean Sutherland was promoted to Chief Accounting Officer and principal accounting officer, taking over from Stephen V. Horn.

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Regulation FD Diclosure. On December 5, 2025, Empire State Realty Trust, Inc. (the “Company”) announced that its Board of Directors has authorized the repurchase of up to $500 million of the Company’s Class A common stock and Empire State Realty OP, L.P.’s Series ES, Series 250 and Series 60 operating partnership units for the period from January 1, 2026 through December 31, 2027 (the "Repurchase Program"). This will replace the existing $500 million repurchase authorization that runs from Ja…

Entry into a Material Definitive Agreement. On November 14, 2025, Empire State Realty OP, L.P. (the “Operating Partnership”) and its general partner, Empire State Realty Trust, Inc. (the “Company”) entered into an Amended and Restated Credit Agreement (the “Credit Agreement”) with Wells Fargo Bank, National Association as administrative agent, Bank of America, N.A. as syndication agent and the lenders party thereto. The Credit Agreement amends and restates the credit agreement, dated as of Ma…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure set forth above with respect to the Credit Agreement under

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement. On October 15, 2025, Empire State Realty Trust, Inc. (the "Company") and Empire State Realty OP, L.P. (the "Operating Partnership"), the operating partnership subsidiary of the Company, entered into a Note Purchase Agreement with the purchasers named therein (the "Purchase Agreement") in connection with a private placement of $175,000,000 aggregate principal amount of the Operating Partnership's 5.47% Series L Senior Notes due January 7, 2031 (the "…

Executive Vice President, Real Estate — Thomas P. Durels: Mr. Durels is transitioning his duties to two new Co-Heads of Real Estate, Ryan Kass and Jackie Renton.

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Director — George L. W. Malkin: George L. W. Malkin was appointed to the Board of Directors and increased its size from nine to ten members.

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Director, Chair of the Compensation Committee, and member of the Audit Committee — Thomas J. DeRosa: Mr. DeRosa notified the Company of his intention to retire and not stand for re-election at the upcoming Annual Meeting.

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

The filing details amendments to employment agreements and a new employment agreement for existing executives, with no genuine departure or internal promotion.

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

Chairman and Chief Executive Officer — Anthony E. Malkin: The executive's employment term was extended and a retention bonus was provided.

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. As previously disclosed in the Notification of Late Filing on Form 12b-25 filed by Empire State Realty Trust, Inc. ("ESRT") and Empire State Realty OP, L.P. ("ESROP" and together with ESRT, the “Registrants”) with the Securities and Exchange Commission (“SEC”) on August 12, 2024, each Registrant has determined that it is unable to file its Quarterly Report on Form 10-Q for the fiscal quarter e…

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…

of this Current Report, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. Such information shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, unless it is specifically inc…