Simrat Randhawa - 23 Sep 2025 Form 4 Insider Report for Dianthus Therapeutics, Inc. /DE/ (DNTH)

Role: CHIEF MEDICAL OFFICER
Signature: /s/ Adam Veness, as attorney-in-fact for Simrat Randhawa
Issuer symbol: DNTH
Transactions as of: 23 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 25 Sep 2025, 20:01:58 UTC
Previous filing: 04 Feb 2025
Next filing: 14 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Randhawa Simrat	CHIEF MEDICAL OFFICER	C/O DIANTHUS THERAPEUTICS, INC., 7 TIMES SQUARE, 43RD FLOOR, NEW YORK	/s/ Adam Veness, as attorney-in-fact for Simrat Randhawa	25 Sep 2025	0001992260

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DNTH	Stock Option (Right to Buy)	Award	$0	+60,000		$0.000000	60,000	23 Sep 2025	Common Stock	60,000	$37.87	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares of common stock underlying this stock option award will vest in equal monthly installments over the four years after September 23, 2025, subject to the Reporting Person's continued service to the Issuer on each such vesting date.