DNTH files Item 2.02 8-K with Exhibit 99.1 for Q3 2025

Rhea-AI Filing Summary

Dianthus Therapeutics filed an 8-K stating it furnished a press release with financial results for the quarter ended September 30, 2025. The release is attached as Exhibit 99.1. The information is furnished under Item 2.02 and is not deemed filed under Section 18, nor incorporated by reference except if specifically referenced.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 5, 2025

DIANTHUS THERAPEUTICS, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware			001-38541	81-0724163
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
7 Times Square 43rd Floor
New York, New York				10036
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: 929 999-4055

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, $0.001 Par Value		DNTH		The Nasdaq Capital Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On November 5, 2025, Dianthus Therapeutics, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2025. A copy of this press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

The information in this Form 8-K (including Exhibit 99.1 attached hereto) is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing by the Company, under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
99.1		Press release dated November 5, 2025
104		Cover Page Interactive Data File (embedded within the inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			DIANTHUS THERAPEUTICS, INC.
Date:	November 5, 2025	By:	/s/ Adam M. Veness, Esq.
			Adam M. Veness, Esq. SVP, General Counsel and Secretary

FAQ

What did DNTH announce in this 8-K?

The company furnished a press release with financial results for the quarter ended September 30, 2025, attached as Exhibit 99.1.

Which period do the results cover for DNTH?

The results cover the quarter ended September 30, 2025.

Where can investors find DNTH’s detailed results?

Details are in the press release furnished as Exhibit 99.1.

How is the information treated for liability purposes?

It is being furnished, not filed, and is not subject to Section 18 liabilities, nor incorporated by reference unless specifically referenced.

What exhibits are included with this DNTH 8-K?

Exhibits include 99.1 (press release) and 104 (Cover Page Interactive Data File).

What is DNTH’s trading symbol and exchange?

The common stock trades on The Nasdaq Capital Market under the symbol DNTH.