Director Paula Soteropoulos gets 6,090 DNTH options in new award

Rhea-AI Filing Summary

Dianthus Therapeutics director Paula Soteropoulos received a grant of stock options covering 6,090 shares of common stock. These options have an exercise price of $89.63 per share and expire on May 21, 2036. Following this award, she holds 6,090 derivative securities linked to common stock.

The underlying 6,090 shares of common stock will vest in full on the earlier of the first anniversary of the grant date or the company’s 2027 Annual Meeting of Stockholders, provided she continues serving the company through the vesting date. This is a compensation-related award rather than an open-market purchase or sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Soteropoulos Paula

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	6,090	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 6,090 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Option grant size: 6,090 options Exercise price: $89.63 per share Underlying shares: 6,090 shares +2 more

5 metrics

Option grant size 6,090 options Stock Option (Right to Buy) granted to director

Exercise price $89.63 per share Conversion or exercise price of stock options

Underlying shares 6,090 shares Common stock underlying the option award

Expiration date May 21, 2036 Option expiration for this grant

Post-transaction derivative holdings 6,090 derivative securities Total options held after this award

Key Terms

Stock Option (Right to Buy), exercise price, derivative securities, vesting, +1 more

5 terms

Stock Option (Right to Buy) financial

"security_title: "Stock Option (Right to Buy)""

exercise price financial

"conversion_or_exercise_price: "89.6300""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

derivative securities financial

"derivativeTransactionCount: 1, derivative type transaction"

Financial contracts whose value is tied to the price or performance of another asset, such as a stock, bond, commodity, index, or currency; examples include options, futures and swaps. They matter to investors because they let you protect against price swings, bet on future moves or gain larger exposure with less upfront cash—like using a lever or insurance policy on an investment—so they can amplify gains and losses and help manage portfolio risk.

vesting financial

"shares will vest in full on the earlier of the first anniversary"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Annual Meeting of Stockholders financial

"earlier of ... or (ii) the Issuer's 2027 Annual Meeting of Stockholders"

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Soteropoulos Paula

(Last) (First) (Middle)

C/O DIANTHUS THERAPEUTICS, INC.

7 TIMES SQUARE, 43RD FLOOR

(Street)

NEW YORK NEW YORK 10036

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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

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

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

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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$89.63	05/21/2026		A		6,090		(1)	05/21/2036	Common Stock	6,090	$0	6,090	D

Explanation of Responses:

1. The shares of common stock underlying this stock option award will vest in full on the date that is the earlier of (i) the first anniversary of the grant date or (ii) the Issuer's 2027 Annual Meeting of Stockholders, subject to the Reporting Person's continued service to the Issuer through the vesting date.

	/s/ Adam Veness, as attorney-in-fact for Paula Soteropoulos	05/22/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Paula Soteropoulos report in this Dianthus Therapeutics (DNTH) Form 4?

She reported receiving a grant of stock options for 6,090 shares of Dianthus Therapeutics common stock. These options are a compensation-related award and not an open-market stock purchase or sale.

How many Dianthus Therapeutics (DNTH) options did Paula Soteropoulos receive?

She received stock options covering 6,090 shares of Dianthus Therapeutics common stock. All 6,090 underlying shares are tied to this single option award reported in the filing.

What is the exercise price of Paula Soteropoulos’s DNTH stock options?

The options have an exercise price of $89.63 per share. This is the price she would pay per share to convert the options into Dianthus Therapeutics common stock in the future.

When do Paula Soteropoulos’s Dianthus Therapeutics options vest?

The 6,090 underlying shares vest in full on the earlier of the first anniversary of the grant date or the company’s 2027 Annual Meeting, assuming she continues serving the issuer through that vesting date.

Is this DNTH Form 4 a stock sale or purchase by Paula Soteropoulos?

No, it reports a grant of stock options as compensation, not an open-market stock sale or purchase. The transaction is coded as an acquisition (grant or award) of derivative securities.