SCHEDULE 13G/A 0001132317 XXXXXXXX LIVE 2 Common Stock, par value $0.01 per share 03/31/2025 0001108205 Curis, Inc. 231269309 128 Spring Street, Building C - Suite 50 Lexington MA 02421 Rule 13d-1(c) Thomas A. Satterfield, Jr. X1 149056.00 886706.00 149056.00 886706.00 1035762.00 N 9.9 IN * Based on (i) 8,487,818 shares of common stock of the issuer outstanding as of March 27, 2025, as reported by the issuer in its Annual Report on Form 10-K for the fiscal year ended December 31, 2024 and (ii) the sale of an additional 1,974,432 shares of common stock as reported by the issuer in its Current Report on Form 8-K filed on March 28, 2025. The Reporting Person is the beneficial owner of shares of common stock, warrants with a 9.99% limit on the exercise of such warrants, and pre-funded warrants with a 9.99% exercise limitation. Specifically, the warrants and pre-funded warrants held by the Reporting Person provide that the holder will not have a right to exercise the warrants for common stock if, as a result of such conversion, the holder, together with his affiliates, would exceed 9.99% beneficial ownership of the number of shares of common stock outstanding immediately after giving effect to the issuance of the shares of common stock being exercised. The share numbers set forth herein represent the number of shares of common stock held by the Reporting Person, which equals precisely 9.9% of the issuer's common stock. If there was no limit on the exercise of the warrants and pre-funded warrants, the Reporting Person would be deemed to be the beneficial owner of an aggregate of 2,481,924 shares of common stock, representing 20.8% of the issuer's outstanding common stock (factoring in the exercise of such warrants and pre-funded warrants). Curis, Inc. 128 SPRING STREET, BUILDING C, SUITE 500, LEXINGTON, MA 02421 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., 207,411 shares of common stock, 332,294 shares of common stock issuable upon the exercise of warrants, and 53,251 shares of common stock issuable upon the exercise of pre-funded warrants are held by Tomsat Investment & Trading Co., Inc, a corporation wholly owned by Mr. Satterfield and of which he serves as President; 411,059 shares of common stock, 623,236 shares of common stock issuable upon exercise of warrants, and 99,845 shares of common stock issuable upon the exercise of pre-funded warrants are held by A.G. Family L.P., a partnership managed by a general partner controlled by Mr. Satterfield; 240,000 shares of common stock 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; and 28,236 shares of common stock, 83,096 shares of common stock issuable upon exercise of warrants, and 13,312 shares of common stock issuable upon the exercise of pre-funded warrants are held by Pontikes Holdings LLC, a limited liability company owned by Mr. Satterfield's stepbrother. Mr. Satterfield disclaims beneficial ownership of the shares held by Pontikes Holdings LLC. 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. 04/16/2025