Nantahala Capital Management Increases Stake in Curis, Inc. to 9.99%

Nantahala Capital Management, LLC, alongside its managers Wilmot B. Harkey and Daniel Mack, filed a Schedule 13G/A on April 7, 2026, reporting a significant increase in their position in Curis, Inc. (CRIS). The reporting persons now beneficially own 4,215,165 shares of common stock, representing 9.99% of the company based on the issuer's most recent share count. This represents a substantial increase from a previously reported 0.0% ownership position. The shares are held by various funds and separately managed accounts under Nantahala's control, specifically noting Nantahala Capital Partners Limited Partnership and Blackwell Partners LLC - Series A as entities with rights to dividends or sale proceeds. The filing indicates shared voting and dispositive power over all reported shares. The acquisition was made in the ordinary course of business without the intent to change or influence the control of the issuer. This amendment reflects the firm's strengthened conviction in the biotechnology company.