BASIS OF PRESENTATION	9 Months Ended
Jun. 30, 2026
BASIS OF PRESENTATION
BASIS OF PRESENTATION	NOTE 1: BASIS OF PRESENTATION The accompanying consolidated financial statements include the accounts of Gouverneur Bancorp, Inc. (“Bancorp”) and Gouverneur Savings and Loan Association (the “Bank”), the wholly owned and only direct subsidiary of Bancorp, and GS&L Municipal Bank, the wholly owned and only subsidiary of the Bank, (collectively referred to as the “Company”) as of June 30, 2026 (unaudited) and September 30, 2025 and for the three and nine-month periods ended June 30, 2026 and 2025 (unaudited). These consolidated financial statements were prepared in accordance with instructions for Form 10-Q and, therefore, do not include information or footnotes necessary for a complete presentation of financial condition, results of operations, and cash flows in conformity with generally accepted accounting principles in the United States of America. Gouverneur Bancorp, Inc. is a Maryland corporation that was incorporated in June 2023 to be the successor to Gouverneur Bancorp, Inc., a federally chartered corporation (the “Mid-Tier Holding Company”), upon completion of the second-step conversion of the Bank from the two-tier mutual holding company structure to the stock holding company structure. Cambray Mutual Holding Company (“Cambray”) was the former mutual holding company for the Mid-Tier Holding Company prior to the completion of the second-step conversion. In conjunction with the second-step conversion, each of Cambray Mutual Holding Company and the Mid-Tier Holding Company merged out of existence and now cease to exist. The second-step conversion was completed on October 31, 2023, at which time the Company sold, for gross proceeds of $7.2 million, a total of 723,068 shares of common stock at $10.00 per share, including 57,845 shares sold to the Bank’s employee stock ownership plan. As part of the second-step conversion, each of the existing outstanding shares of Mid-Tier Holding Company common stock owned by persons other than Cambray Mutual Holding Company was converted into 0.5334 shares of Bancorp common stock. In September 2022, the Bank completed its acquisition of Citizens Bank of Cape Vincent (“CBCV”), a commercial bank headquartered in Cape Vincent, New York. In conjunction with the acquisition of CBCV, the Bank formed the limited purpose GS&L Municipal Bank in order to continue to hold CBCV’s municipal deposits and continue to compete for such deposits in the future. GS&L Municipal Bank is a limited purpose commercial bank that is a wholly owned subsidiary of the Bank and operates under the same regulatory and operating framework as the Bank. GS&L Municipal Bank is a New York chartered limited purpose commercial bank organized to solicit municipal deposits from local government entities such as towns, cities, school districts, fire districts and other municipalities. The Bank views GS&L Municipal Bank as a source of low cost and stable source of funds that will further the Bank’s commitment to the communities in which the Bank operates. On March 27, 2026, the Bank filed (i) an application with the Office of the Comptroller of the Currency (the “OCC”) to convert from a New York chartered stock savings and loan association to a national banking association (the “Charter Conversion”) and (ii) an application with the OCC to merge GS&L Municipal Bank with and into the Bank, with the Bank continuing as the surviving institution (the “Bank Merger”), immediately after the effective time of the Charter Conversion. In July 2026, the Bank withdrew the applications previously filed with the OCC in connection with the proposed Charter Conversion and Bank Merger. As a result, the Bank remains a New York chartered stock savings and loan association regulated by the Federal Deposit Insurance Corporation and the New York State Department of Financial Services and GS&L Municipal Bank remains a wholly owned subsidiary of the Bank. All adjustments, consisting of only normal recurring adjustments or accruals, which are necessary for a fair presentation of the consolidated financial statements have been made at and for the three-month and nine-month periods ended June 30, 2026 and 2025. The results of operations for the three and nine-month periods ended June 30, 2026 are not necessarily indicative of the results which may be expected for an entire fiscal year or any other period. The data in the consolidated statements of financial condition for September 30, 2025 was derived from the Company’s audited consolidated financial statements as of and for the year ended September 30, 2025. That data, along with the interim financial information presented in the consolidated statements of financial condition, earnings, comprehensive income (loss), shareholders’ equity and cash flows should be read in conjunction with the Company’s audited consolidated financial statements as of and for the year ended September 30, 2025, including the notes thereto. Certain amounts for the three-month and nine-month periods ended June 30, 2025 were reclassified to conform to the presentation for the three and nine-month periods ended June 30, 2026. The results of operations and cash flows were not modified as a result of these reclassifications.

BASIS OF PRESENTATION

9 Months Ended

Jun. 30, 2026

NOTE 1: BASIS OF PRESENTATION

The accompanying consolidated financial statements include the accounts of Gouverneur Bancorp, Inc. (“Bancorp”) and Gouverneur Savings and Loan Association (the “Bank”), the wholly owned and only direct subsidiary of Bancorp, and GS&L Municipal Bank, the wholly owned and only subsidiary of the Bank, (collectively referred to as the “Company”) as of June 30, 2026 (unaudited) and September 30, 2025 and for the three and nine-month periods ended June 30, 2026 and 2025 (unaudited). These consolidated financial statements were prepared in accordance with instructions for Form 10-Q and, therefore, do not include information or footnotes necessary for a complete presentation of financial condition, results of operations, and cash flows in conformity with generally accepted accounting principles in the United States of America.

Gouverneur Bancorp, Inc. is a Maryland corporation that was incorporated in June 2023 to be the successor to Gouverneur Bancorp, Inc., a federally chartered corporation (the “Mid-Tier Holding Company”), upon completion of the second-step conversion of the Bank from the two-tier mutual holding company structure to the stock holding company structure. Cambray Mutual Holding Company (“Cambray”) was the former mutual holding company for the Mid-Tier Holding Company prior to the completion of the second-step conversion. In conjunction with the second-step conversion, each of Cambray Mutual Holding Company and the Mid-Tier Holding Company merged out of existence and now cease to exist. The second-step conversion was completed on October 31, 2023, at which time the Company sold, for gross proceeds of $7.2 million, a total of 723,068 shares of common stock at $10.00 per share, including 57,845 shares sold to the Bank’s employee stock ownership plan. As part of the second-step conversion, each of the existing outstanding shares of Mid-Tier Holding Company common stock owned by persons other than Cambray Mutual Holding Company was converted into 0.5334 shares of Bancorp common stock.

In September 2022, the Bank completed its acquisition of Citizens Bank of Cape Vincent (“CBCV”), a commercial bank headquartered in Cape Vincent, New York. In conjunction with the acquisition of CBCV, the Bank formed the limited purpose GS&L Municipal Bank in order to continue to hold CBCV’s municipal deposits and continue to compete for such deposits in the future. GS&L Municipal Bank is a limited purpose commercial bank that is a wholly owned subsidiary of the Bank and operates under the same regulatory and operating framework as the Bank. GS&L Municipal Bank is a New York chartered limited purpose commercial bank organized to solicit municipal deposits from local government entities such as towns, cities, school districts, fire districts and other municipalities. The Bank views GS&L Municipal Bank as a source of low cost and stable source of funds that will further the Bank’s commitment to the communities in which the Bank operates.

On March 27, 2026, the Bank filed (i) an application with the Office of the Comptroller of the Currency (the “OCC”) to convert from a New York chartered stock savings and loan association to a national banking association (the “Charter Conversion”) and (ii) an application with the OCC to merge GS&L Municipal Bank with and into the Bank, with the Bank continuing as the surviving institution (the “Bank Merger”), immediately after the effective time of the Charter Conversion. In July 2026, the Bank withdrew the applications previously filed with the OCC in connection with the proposed Charter Conversion and Bank Merger. As a result, the Bank remains a New York chartered stock savings and loan association regulated by the Federal Deposit Insurance Corporation and the New York State Department of Financial Services and GS&L Municipal Bank remains a wholly owned subsidiary of the Bank.

All adjustments, consisting of only normal recurring adjustments or accruals, which are necessary for a fair presentation of the consolidated financial statements have been made at and for the three-month and nine-month periods ended June 30, 2026 and 2025. The results of operations for the three and nine-month periods ended June 30, 2026 are not necessarily indicative of the results which may be expected for an entire fiscal year or any other period.

The data in the consolidated statements of financial condition for September 30, 2025 was derived from the Company’s audited consolidated financial statements as of and for the year ended September 30, 2025. That data, along with the interim financial information presented in the consolidated statements of financial condition, earnings, comprehensive income (loss), shareholders’ equity and cash flows should be read in conjunction with the Company’s audited consolidated financial statements as of and for the year ended September 30, 2025, including the notes thereto. Certain amounts for the

three-month and nine-month periods ended June 30, 2025 were reclassified to conform to the presentation for the three and nine-month periods ended June 30, 2026. The results of operations and cash flows were not modified as a result of these reclassifications.