SCHEDULE 13G/A 0001654954-22-003630 0001132317 XXXXXXXX LIVE 3 Common Stock, $.05 par value 12/31/2024 0000087802 Scientific Industries, Inc. 808757108 80 Orville Drive, Suite 102 Bohemia NY 11716 Rule 13d-1(c) Thomas A. Satterfield, Jr. X1 178420.00 959635.00 178420.00 959635.00 1138055.00 N 9.9 IN * Based on 10,503,599 shares of common stock of the issuer outstanding as of November 13, 2024, as reported by the issuer in its Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2024. This assumes the exercise of 191,984 warrants beneficially owned by the Reporting Person. In addition, subject to the Beneficial Ownership Blocker (as defined below), the Reporting Person may also be deemed to beneficially own 145,000 shares of common stock issuable upon exercise of an additional 145,000 warrants (the "Additional Warrants"). Pursuant to the terms of the Additional Warrants, the issuer may not effect any exercise of any Additional Warrant, and a holder of an Additional Warrant does not have the right to exercise any portion of the Additional Warrant held by such holder, to the extent that, after giving effect to the attempted exercise set forth in a notice of exercise, such holder, together with such holder's affiliates and any other persons acting as a group together with the holder or any of the holder's affiliates, would beneficially own a number of shares of common stock in excess of the Beneficial Ownership Limitation (the "Beneficial Ownership Blocker"). The "Beneficial Ownership Limitation" is 4.99% (or, upon election by a holder prior to the issuance of any warrants, 9.99%) of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock issuable upon exercise of the Additional Warrants. Any increase in the Beneficial Ownership Limitation will not be effective until the 61st day after such notice is delivered to the issuer. Scientific Industries, Inc. 80 Orville Drive, Suite 102, Bohemia, NY 11716 Thomas A. Satterfield, Jr. 15 Colley Cove Drive Gulf Breeze, Florida 32561 Incorporated by reference from Item 4 of the Cover Page. Y Incorporated by reference from Item 9 of the Cover Page. Incorporated by reference from Item 11 of the Cover Page. Incorporated by reference from Item 5 of the Cover Page. Incorporated by reference from Item 6 of the Cover Page. Incorporated by reference from Item 7 of the Cover Page. Incorporated by reference from Item 8 of the Cover Page. Y N With respect to the beneficial ownership report for Thomas A. Satterfield, Jr., 141,675 shares of common stock, 50,837 shares of common stock issuable upon exercise of warrants, and 40,000 shares of common stock issuable upon exercise of Additional Warrants (as defined on the Cover Page) are held by Tomsat Investment & Trading Co., Inc, a corporation wholly owned by Mr. Satterfield and of which he serves as President; 306,449 shares of common stock, 101,674 shares of common stock issuable upon exercise of warrants, and 75,000 shares of common stock issuable upon exercise of Additional Warrants are held by A.G. Family L.P., a partnership managed by a general partner controlled by Mr. Satterfield; and 244,000 shares are held by Caldwell Mill Opportunity Fund, LLC which fund is managed by an entity of which Mr. Satterfield owns a 50% interest and serves as Chief Investment Manager. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Thomas A. Satterfield, Jr. /s/ Thomas A. Satterfield, Jr. 02/12/2025