Amendment to Schedule 13G Filing for CURIS INC

Stonepine Capital Management, LLC, along with Stonepine Capital, L.P. and Stonepine GP, LLC, collectively hold 4,025,992 shares of CURIS INC common stock, representing a 9.9% ownership stake. This filing indicates a shift in significant ownership, with Stonepine Capital Management, LLC now holding this substantial interest. The filing specifies that the shares were acquired and are held without the intent to influence or change the control of the issuer. The reporting persons have entered into a joint filing agreement to facilitate regulatory compliance. The ownership calculation is based on 39,978,693 shares outstanding as of March 20, 2026.