Dianthus Therapeutics, Inc.

, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934,

, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject

Financial Statements and Exhibits. (d) Exhibits Exhibit No. Description 99.1 Corporate Presentation of Dianthus Therapeutics, Inc., dated January 2026 104 Cover