Dianthus Therapeutics, Inc. Announces Closing of its Upsized $288 Million Underwritten Public Offering Including Full Exercise of Underwriters’ Option to Purchase Additional Shares

NEW YORK and WALTHAM, Mass., Sept. 11, 2025 (GLOBE NEWSWIRE) -- Dianthus Therapeutics, Inc. (Nasdaq: DNTH), a clinical-stage biotechnology company dedicated to advancing the next generation of antibody complement therapeutics to treat severe autoimmune diseases (“Dianthus” or the “Company”), today announced that it closed its previously announced underwritten public offering of 7,627,879 shares of its common stock, including the full exercise by the underwriters of their option to purchase an additional 1,140,000 shares, at a public offering price of $33.00 per share, and, in lieu of common stock to certain investors, pre-funded warrants to purchase up to 1,112,121 shares of its common stock at a public offering price of $32.999 per pre-funded warrant. The pre-funded warrants have an exercise price of $0.001 per share and are exercisable immediately. The aggregate gross proceeds to Dianthus from the offering were approximately $288 million before deducting underwriting discounts and commissions and other offering expenses payable by Dianthus. All of the securities were offered by Dianthus.

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