Business Description

AmBase Corporation (the “Company” or “AmBase”) is a Delaware corporation that was incorporated in 1975. AmBase is a holding company. At December 31, 2025, the Company’s assets consisted primarily of cash and cash equivalents. The Company is engaged in the management of its assets and liabilities. In June 2013, the Company purchased an equity interest in a real estate development property through a joint venture agreement to purchase and develop real property located at 105 through 111 West 57 th Street in New York, New York (the “111 West 57 th Property”). The Company is engaged in material disputes and litigation with regard to the 111 West 57 th Property. Despite ongoing litigation challenging the legitimacy of the actions taken in connection with the “Strict Foreclosure”, (as defined and further discussed herein), the Company recorded an impairment for the full amount of its equity investment in the 111 West 57th Property in 2017. Prior to the Strict Foreclosure, the carrying value of the Company’s equity investment in the 111 West 57 th Property represented a substantial portion of the Company’s assets and net equity value. For additional information concerning the Company’s legal proceedings relating to the 111 West 57 th Property, see Part II – Item 8 – Note 3 and Note 8 to the Company’s consolidated financial statements. The executive office of the Company is located at 7857 West Sample Road, Suite 134, Coral Springs, Florida 33065. The Company had four (4) full-time and two (2) part-time employees at December 31, 2025. Background In August 1988, the Company acquired Carteret Bancorp Inc., which through its principal wholly owned subsidiary Carteret Savings Bank, FA, was principally engaged in retail and consumer banking, and mortgage banking including mortgage servicing. On December 4, 1992, Carteret Savings Bank, FA was placed in receivership and a new institution, Carteret Federal Savings Bank was established to assume the assets and certain liabilities of Carteret Savings Bank, FA. The Company was a plaintiff in a legal proceeding, commenced in 1993, seeking recovery of damages from the United States Government for the loss of the Company’s wholly-owned subsidiary, Carteret Savings Bank, F.A. (the “Supervisory Goodwill” legal proceedings). Pursuant to a Settlement Agreement between the Company, the Federal Deposit Insurance Corporation-Receiver (“FDIC-R”) and the Department of Justice (“DOJ”) on behalf of the United States of America (the “United States”), (the “Settlement Agreement”) as approved by the United States Court of Federal Claims (the “Court of Federal Claims”), in October 2012, the United States paid $180,650,000 directly to AmBase (the “Settlement Amount”). On August 6, 2013, Senior Judge Smith issued an opinion which addressed the relief sought by the Company. In summary, the court held that the Settlement Agreement is a contract and that it entitles the Company to receive both “(1) the amount of the tax consequences resulting from taxation of the damages award plus (2) the tax consequences of receiving the first component.” But the Court of Federal Claims did not award an additional amount for the second component at that time given the remaining uncertainty surrounding the ultimate tax treatment of the settlement proceeds and the gross-up, as well as uncertainty relating to the Company’s future income. The Court of Federal Claims indicated that either the Company or the government is entitled to seek further relief “if, and when, the facts justify it.” Stockholder Inquiries Stockholder inquiries, including requests for the following: (i) change of address; (ii) replacement of lost stock certificates; (iii) Common Stock name registration changes; (iv) Quarterly Reports on Form 10-Q; (v) Annual Reports on Form 10-K; (vi) Current Reports on Form 8-K; (vii) proxy materials; and (viii) information regarding stockholdings, should be directed to: Equiniti Trust Company, LLC. Attn: EQ - Automated Scanning Team 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 1‑800‑937‑5449 or 718‑921‑8157 1 Table of Contents The Company does not maintain a website.…