STOCK TITAN

Dianthus Therapeutics (DNTH) director receives grant of 6,090 stock options

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Dianthus Therapeutics director Steven J. Romano received a grant of stock options covering 6,090 shares of common stock. The options have an exercise price of $89.63 per share and expire on May 21, 2036. According to the terms, all 6,090 underlying shares will vest in full on the earlier of the first anniversary of the May 21, 2026 grant date or the company’s 2027 annual meeting of stockholders, provided he continues serving the company through that vesting date.

Positive

  • None.

Negative

  • None.
Insider Romano Steven J.
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]
Option grant size 6,090 options Stock Option (Right to Buy) granted May 21, 2026
Exercise price $89.63 per share Exercise price of stock option grant
Expiration date May 21, 2036 Option expiration for 6,090-share grant
Underlying shares 6,090 shares Common stock underlying granted options
Post-transaction derivative holdings 6,090 options Total derivative securities held after grant
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.
expiration date financial
"expiration_date: 2036-05-21T00:00:00.000Z"
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.
grant, award, or other acquisition financial
"transaction_code_description: Grant, award, or other acquisition"
vest in full financial
"will vest in full on the date that is the earlier"
Annual Meeting of Stockholders financial
"the Issuer's 2027 Annual Meeting of Stockholders"
SEC Form 4
FORM 4UNITED 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*
Romano Steven J.

(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)
XDirector10% 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)
XForm 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)
CodeVAmount(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$89.6305/21/2026A6,090 (1)05/21/2036Common Stock6,090$06,090D
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 Steven J. Romano05/22/2026
** Signature of Reporting PersonDate
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 Dianthus Therapeutics (DNTH) director Steven J. Romano report on this Form 4?

Steven J. Romano reported receiving a grant of stock options for 6,090 shares of Dianthus Therapeutics common stock. These options were awarded at an exercise price of $89.63 per share and represent compensation rather than an open-market stock purchase or sale.

How many Dianthus Therapeutics (DNTH) options were granted to Steven J. Romano?

He was granted stock options covering 6,090 shares of Dianthus Therapeutics common stock. This full amount is reported as held following the transaction, indicating the award created a new option position rather than modifying an existing derivative holding.

What is the exercise price and expiration date of Steven J. Romano’s DNTH options?

The stock options have an exercise price of $89.63 per share and expire on May 21, 2036. This sets the fixed price Romano would pay per share if he chooses to exercise the options before expiration, subject to vesting conditions.

When do Steven J. Romano’s Dianthus Therapeutics (DNTH) options vest?

All 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 of stockholders. Vesting is contingent on Romano’s continued service with Dianthus Therapeutics through that vesting date.

Does this Form 4 show Steven J. Romano buying or selling DNTH stock on the market?

No, the Form 4 shows a grant of stock options as compensation, coded as a grant or award acquisition. It does not report an open-market purchase or sale of Dianthus Therapeutics common stock by Romano on the transaction date.

How many DNTH derivative securities does Steven J. Romano hold after this transaction?

Following the reported grant, Romano holds 6,090 derivative securities in the form of stock options. These options each relate to one share of Dianthus Therapeutics common stock and are held directly, as indicated in the ownership coding.