SEC FORM 4

SEC FORM 4 SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Meng Lei

(Last)

(First)

(Middle)

C/O DIANTHUS THERAPEUTICS, INC.

7 TIMES SQUARE, 43RD FLOOR

(Street)

NEW YORK

10036

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Dianthus Therapeutics, Inc. /DE/ [ DNTH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2023

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$11.2	09/11/2023		A		6,500		⁽¹⁾	09/10/2033	Common Stock	6,500	$0	6,500	I	See footnote⁽²⁾⁽³⁾⁽⁴⁾

1. Name and Address of Reporting Person^*

Meng Lei

(Last)

(First)

(Middle)

C/O DIANTHUS THERAPEUTICS, INC.

7 TIMES SQUARE, 43RD FLOOR

(Street)

NEW YORK

10036

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Avidity Partners Management LP

(Last)

(First)

(Middle)

2828 N HARWOOD STREET, SUITE 1220

(Street)

DALLAS

75201

(City)

(State)

(Zip)

Explanation of Responses:

1. This option represents a right to purchase a total of 6,500 shares of the Issuer's common stock, which will vest in full on the date that is the earlier of (i) the Issuer's 2024 Annual Meeting of Stockholders and (ii) September 11, 2024, subject to the Reporting Person's continued service to the Issuer.

2. Under Ms. Meng's arrangement with Avidity Partners Management LP (the "Avidity"), Ms. Meng holds the option for the benefit of clients of Avidity. Ms. Meng is obligated to turn over to the Avidity any net cash or stock received from the option for the benefit of Avidity. Ms. Meng therefore disclaims beneficial ownership of the option and underlying common stock. The reported shares may be deemed to beneficially owned by (i) Avidity Partners Management LP, (ii) Avidity Partners Management (GP) LLC, the general partner of Avidity Partners Management LP and (iii) each of David Witzke and Michael Gregory, the managing members of Avidity Partners Management (GP) LLC. Under Ms. Meng's arrangement with Avidity Partners Management LP (the "Avidity"), Ms. Meng holds the option for the benefit of clients of Avidity.

3. Ms. Meng is obligated to turn over to the Avidity any net cash or stock received from the option for the benefit of Avidity. Ms. Meng therefore disclaims beneficial ownership of the option and underlying common stock. The reported shares may be deemed to beneficially owned by (i) Avidity Partners Management LP, (ii) Avidity Partners Management (GP) LLC, the general partner of Avidity Partners Management LP and (iii) each of David Witzke and Michael Gregory, the managing members of Avidity Partners Management (GP) LLC.

4. As of the date hereof, Avidity Partners Management (GP) LLC, David Witzke and Michael Gregory have not yet received the applicable EDGAR codes required to make filings with the Securities and Exchange Commission; however, such Reporting Persons have applied for the applicable codes and will supplement this Form 4 once such codes are available.

	MENG LEI, /s/ Adam Veness, as attorney-in-fact for Lei Meng	09/13/2023
	AVIDITY PARTNERS MANAGEMENT LP, By: Avidity Partners Management (GP) LLC, its general partner, /s/ David Witzke Managing Member, /s/ Michael Gregory Managing Member	09/13/2023
	AVIDITY PARTNERS MANAGEMENT (GP) LLC, /s/ David Witzke Managing Member, /s/ Michael Gregory Managing Member	09/13/2023
	DAVID WITZKE, /s/ David Witzke	09/13/2023
	MICHAEL GREGORY, /s/ Michael Gregory	09/13/2023
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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SEC Form 4 filed by Meng Lei