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AmBase Corp

For the period ended Sep 30, 2025. Filed Nov 6, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 6, 2025

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Item 6. Exhibits

EXHIBITS

10.1Senior Promissory Note for $100,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on March 13, 2025, and incorporated herein by reference).
10.2Senior Promissory Note for $400,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on March 27, 2025, and incorporated herein by reference).
10.3Senior Promissory Note for $100,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on June 2, 2025, and incorporated herein by reference).
10.4Senior Promissory Note for $500,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on June 23, 2025, and incorporated herein by reference).
10.5Senior Promissory Note for $250,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on July 25, 2025, and incorporated herein by reference).
10.6Senior Promissory Note for $100,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on September 11, 2025, and incorporated herein by reference).
10.7Senior Promissory Note for $250,000, between Richard A. Bianco, the Company’s President and Chief Executive Officer (“Mr. R.A. Bianco”) and the Company (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K as filed with the SEC on September 29, 2025, and incorporated herein by reference).
31.1*Rule 13a-14(a) Certification of Chief Executive Officer
31.2*Rule 13a-14(a) Certification of Chief Financial Officer
32.1*Section 1350 Certification of Chief Executive Officer
32.2*Section 1350 Certification of Chief Financial Officer
101.1*The following financial statements from AmBase Corporation’s quarterly report on Form 10-Q for the quarter ended September 30, 2025 formatted in XBRL: (i) Condensed Consolidated Statements of Operations (unaudited); (ii) Condensed Consolidated Balance Sheets (unaudited); (iii) Condensed Consolidated Statements of Cash Flow (unaudited); (iv) Condensed Consolidated Statements of Changes in Stockholders’ Equity (Deficit) (unaudited); and (v) Notes to Condensed Consolidated Financial Statements (unaudited).
104.1*The Cover Page from this Quarterly Report on Form 10-Q, formatted in Inline XBRL.

*filed herewith

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.