Results of Operations and Financial Condition. On August 13, 2026, the Company issued a press release announcing its financial results for the second quarter ending June 30, 2026. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Unregistered Sales of Equity Securities. See discussion under

Entry into a Material Definitive Agreement. Third Amendment to Credit Agreement and Forbearance Agreement On July 22, 2026 (the “Third Amendment Effective Date”), American Shared Hospital Services (the “Company”), along with certain of its domestic subsidiaries, entered into a Third Amendment to Credit Agreement and Forbearance Agreement (the “Third Amendment”) with Fifth Third Bank, National Association (the “Lender”), amending that certain Credit Agreement dated April 9, 2021 by and among t…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. See discussion under

CFO — Raymond S. Frech: Mr. Frech resigned as CFO for personal reasons.

Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement. American Shared Hospital Services (the “ Company ”) is a party to that certain Credit Agreement, dated as of April 9, 2021 (as amended from time to time, the “ Credit Agreement ”), between Fifth Third Bank, National Association (the “ Lender ”), on the one hand, and the Company, PBRT Orlando, LLC (“ PBRT ”), GK Financing, LLC (“ GKF ,” together with the Company…

Results of Operations and Financial Condition. On May 14, 2026, the Company issued a press release announcing its financial results for the first quarter ending March 31, 2026. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

CEO — Gary Delanois: Gary Delanois resigned as CEO for personal reasons.

Results of Operations and Financial Condition. On March 31, 2026, American Shared Hospital Services (the “Company”) issued a press release announcing its financial results for the fourth quarter and year-end 2025. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Entry into a Material Definitive Agreement American Shared Hospital Services (the “Company”) is a party to a Proton Beam Radiation Therapy Lease Agreement dated October 18, 2006, as amended by Amendment One to Proton Beam Radiation Therapy Lease Agreement dated effective as of August 12, 2012 (the “Lease”), under which it leases a proton beam radiation therapy system to Orlando Health, Inc. (“Orlando Health”). On March 13, 2026, the Company and Orlando Health entered into Amendment Two to Pro…

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review. On December 27, 2025, the Audit Committee of the Board of Directors of American Shared Hospital Services (the “ Company ”) concluded, after discussions with management and Baker Tilly US, LLP, the Company’s independent registered public accounting firm, that the Company’s unaudited condensed balance sheet that was part of the Company’s financial statements as of September 30, 2025 (th…

Other Events. American Shared Hospital Services (the “ Company ”) is a party to that certain Credit Agreement, dated as of April 9, 2021 (as amended from time to time, the “ Credit Agreement ”), between Fifth Third Bank, National Association (the “ Lender ”), on the one hand, and the Company, PBRT Orlando, LLC (“ PBRT ”), GK Financing, LLC (“ GKF ,” together with the Company and PBRT, the “ Borrowers ”), and American Shared Radiosurgery Services (together with the Borrowers, the “ Loan Partie…

Results of Operations and Financial Condition. On November 13, 2025, the Company issued a press release announcing its financial results for the third quarter ending September 30, 2025. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Results of Operations and Financial Condition. On August 13, 2025, the Company issued a press release announcing its financial results for the second quarter ending June 30, 2025. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Chief Executive Officer — Gary Delanois: Mr. Delanois was promoted to CEO with a significant increase in compensation.

Changes in Registrant ’ s Certifying Accountant. On June 3, 2025, American Shared Hospital Services, (the "Company") was notified that Moss Adams LLP ("Moss Adams"), the Company's independent registered public accounting firm, merged with Baker Tilly US, LLP effective on June 3, 2025. The combined audit practices operate as Baker Tilly US, LLP (“Baker Tilly”). In connection with the notification of the merger, Moss Adams has resigned as the auditors of the Company and the Audit Committee of t…

Results of Operations and Financial Condition. On May 15, 2025, the Company issued a press release announcing its financial results for the first quarter ending March 31, 2025. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Chief Executive Officer — Gary Delanois: Gary Delanois was promoted to Chief Executive Officer, while Raymond Stachowiak continues as Executive Chairman.

Results of Operations and Financial Condition. On April 4, 2025, American Shared Hospital Services (the “Company”) issued a press release announcing its financial results for the fourth quarter and year-end 2024. The full text of the press release is furnished as Exhibit 99.1 to this report. The information furnished under this Item 2.02, including the referenced exhibit, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed inco…

Entry into a Material Definitive Agreement. On December 18, 2024 (the “Second Amendment Effective Date”), American Shared Hospital Services (the “Company”), along with certain of its domestic subsidiaries, entered into a Second Amendment to Credit Agreement (the “Second Amendment”) with Fifth Third Bank, National Association (the “Lender”), amending that certain Credit Agreement dated April 9, 2021 by and among the Company, certain of its domestic subsidiaries and the Lender, as amended by th…

Chief Financial Officer — Mr. Robert Hiatt: Mr. Robert Hiatt resigned from his position as Chief Financial Officer.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. See discussion under

Results of Operations and Financial Condition. On November 13, 2024, the Company issued a press release announcing its financial results for the third quarter ending September 30, 2024. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.

Executive Vice President and Chief Operating Officer — Gary Delanois: Mr. Gary Delanois was appointed as the Executive Vice President and Chief Operating Officer of American Shared Hospital Services.

Results of Operations and Financial Condition. On August 14, 2024, the American Shared Hospital Services (the "Company") issued a press release announcing its financial results for the second quarter ending June 30, 2024. The full text of the press release is furnished as Exhibit 99.1 to this report. The Company does not intend for this exhibit to be incorporated by reference into future filings under the Securities Exchange Act of 1934.