AMERICAN SHARED HOSPITAL SERVICES 10-Q

Item 5. Other Information. During the three -month period ended March 31, 2026 , none of the Company’s directors or officers adopted, modified, or terminated a “Rule 10b5 - 1 trading arrangement” or a “non-Rule 10b5 - 1 trading arrangement,” as those terms are defined in Item 408 (a) of Regulation S-K 21 Item 6. Exhibit Index Incorporated by reference herein Exhibit Number Description Form Exhibit Date of Filing 10.1 ǂ Amendment Two to Proton Beam Radiation Therapy Lease Agreement effective as of March 13, 2026, by and between American Shared Hospital Services and Orlando Health, Inc. 8-K 001-08789 10.1 March 19, 2026 31.1 * Certification of Principal Executive Officer pursuant to Rule 13a-14a/15d-14a, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.2 * Certification of Principal Financial Officer pursuant to Rule 13a-14a/15d-14a, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 32.1 ** Certifications of Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 101.INS * Inline XBRL Instance Document 101.SCH * Inline XBRL Taxonomy Extension Schema Document 101.CAL * Inline XBRL Taxonomy Calculation Linkbase Document 101.DEF * Inline XBRL Taxonomy Definition Linkbase Document 101.LAB * Inline XBRL Taxonomy Label Linkbase Document 101.PRE * Inline XBRL Taxonomy Extension Presentation Linkbase Document 104 * Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline Instance XBRL contained in Exhibit 101 * Filed herewith. ** Furnished herewith. ǂ Certain portions of this exhibit have been omitted because they are not material, would be competitively harmful if publicly disclosed, and are of the type that the registrant treats as private or confidential. 22 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. AMERICAN SHARED HOSPITAL SERVICES Registrant Date: May 14, 2026 /s/ Raymond C. Stachowiak Raymond C. Stachowiak Executive Chairman of the Board (principal executive officer) Date: May 14, 2026 /s/ Raymond S. Frech Raymond S. Frech Chief Financial Officer (principal financial and principal accounting officer) 23