X0508 4 2026-02-03 false 0001690585 Dianthus Therapeutics, Inc. /DE/ DNTH 0001778623 Veness Adam M C/O DIANTHUS THERAPEUTICS, INC. 7 TIMES SQUARE, 43RD FLOOR NEW YORK NY 10036 false true false false SVP, General Counsel and Sec. false Stock Option (Right to Buy) 52.46 2026-02-03 4 A false 100000 0 A 2036-02-03 Common Stock 100000 100000 D The shares of common stock underlying this stock option award will vest in equal monthly installments over the four years after January 1, 2026, subject to the Reporting Person's continued service to the Issuer on each such vesting date. /s/ Adam Veness 2026-02-04