Nyxoah files 6-K on Q3 2025 results

Nyxoah furnished a Form 6-K stating that on November 13, 2025 it announced its unaudited third quarter 2025 results.

Rhea-AI Filing Summary

Nyxoah furnished a Form 6-K stating that on November 13, 2025 it announced its unaudited third quarter 2025 results. Those results are contained in a Third Quarter 2025 report attached as Exhibit 99.1. The company also states that the information in Exhibit 99.1 is incorporated by reference into its existing registration statements on Form S-8 and Form F-3, so that these offerings will automatically reflect the latest disclosed information.

FAQ

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What did Nyxoah (NYXH) disclose in this Form 6-K?

Nyxoah reported that it announced its unaudited third quarter 2025 results on November 13, 2025, with details provided in an attached Third Quarter 2025 report as Exhibit 99.1.

Where can investors find Nyxoahs Q3 2025 financial details?

The detailed unaudited third quarter 2025 results are included in Nyxoahs Third Quarter 2025 report, which is attached to the Form 6-K as Exhibit 99.1.

How does this 6-K affect Nyxoahs existing registration statements?

Nyxoah states that the information in Exhibit 99.1 is incorporated by reference into its Form S-8 and Form F-3 registration statements, making that quarterly information part of those filings.

Which Nyxoah registration statements are updated by this 6-K?

The 6-K incorporates Exhibit 99.1 into Nyxoahs Form S-8 registration statements with numbers 333-285960, 333-261233 and 333-269410, and Form F-3 registration statements with numbers 333-285982 and 333-268955.

Who signed Nyxoahs November 2025 Form 6-K?

The Form 6-K was signed on behalf of Nyxoah by Olivier Taelman, the companys Chief Executive Officer, dated November 13, 2025.

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Accepted by SEC EDGAR 11/13/2025 - 05:02 PM EST Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-40552

NYXOAH SA

(Translation of registrant’s name into English)

Rue Edouard Belin 12, 1435 Mont-Saint-Guibert, Belgium

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

Nyxoah SA

On November 13, 2025, the Company announced its unaudited third quarter results for 2025, which are further described in a Third Quarter 2025 report attached hereto as Exhibit 99.1.

The information in the attached Exhibit 99.1 shall be deemed to be incorporated by reference into the registration statements on Form S-8 (Registration Numbers 333-285960, 333-261233 and 333-269410) and Form F-3 (Registration Numbers 333-285982 and 333-268955) of the Company (including any prospectuses forming a part of such registration statements) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

Exhibits

99.1 Third Quarter Report 2025

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, thereunto duly authorized.

	NYXOAH SA
Date: November 13, 2025	By:	/s/ Olivier Taelman
	Name:	Olivier Taelman
	Title:	Chief Executive Officer