# EDGAR Filing Document

**Accession Number:** 0001857190
**File Stem:** 0001104659-25-088240
**Filing Date:** 2025-9
**Character Count:** 7035
**Document Hash:** eef3ee72b1e8f182f4085e7577f8aa3f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-088240.hdr.sgml**: 20250908

**ACCESSION NUMBER**: 0001104659-25-088240

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20250908

**FILED AS OF DATE**: 20250908

**DATE AS OF CHANGE**: 20250908

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Nyxoah SA
- **CENTRAL INDEX KEY:** 0001857190
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40552
- **FILM NUMBER:** 251300018

**BUSINESS ADDRESS:**
- **STREET 1:** RUE EDOUARD BELIN 12
- **CITY:** MONT-SAINT-GUIBERT
- **STATE:** C9
- **ZIP:** 1435
- **BUSINESS PHONE:** 3210222355

**MAIL ADDRESS:**
- **STREET 1:** RUE EDOUARD BELIN 12
- **CITY:** MONT-SAINT-GUIBERT
- **STATE:** C9
- **ZIP:** 1435

**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 September 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 ⌧ 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 September 5, 2025, Nyxoah SA (the "Company") issued a press release, a copy of which is attached hereto as Exhibit 99.1.

*The information in the attached Exhibit 99.1 is being furnished and shall not be deemed "filed" for the 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 in any filing made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise set forth herein or as shall be expressly set forth by specific reference in such a filing.*

**<u>Exhibits</u>**

[99.1](tm2525561d1_ex99-1.htm) [Press Release, dated September 5, 2025](tm2525561d1_ex99-1.htm)

**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** | **NYXOAH SA** |
| Date: September 8, 2025 | By: | /s/ John Landry |
|  | Name: | John Landry |
|  | Title: | Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

![](tm2525561_ex99-1img001.jpg)

**REGULATED INFORMATION**

**Publication relating to transparency notifications**

**Mont-Saint-Guibert (Belgium), September 5, 2025, 10:30 pm CET / 4:30 pm ET –** In accordance with article 14 of the Act of 2 May 2007 on the disclosure of large shareholdings, Nyxoah SA (Euronext Brussels/Nasdaq: NYXH) announces that it received a transparency notification as detailed below.

On September 4, 2025, Nyxoah received a transparency notification from Cochlear Limited and Cochlear Investments Pty Ltd following a passive crossing of a threshold. Based on the notification, Cochlear Investments Pty Ltd holds 5,631,319 voting rights, representing 14.999% of the total number of voting rights on August 29, 2025 (37,544,782).

The notification dated September 4, 2025 contains the following information:

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Reason for the notification</u>: passive crossing of a threshold

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Notification by</u>: a parent undertaking or a controlling person

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Persons subject to the notification requirement</u>:

- Cochlear Limited (with address at 1 University Avenue, Macquarie University, NSW 2109, Australia)

- Cochlear Investments Pty Ltd (with address at 1 University Avenue, Macquarie University, NSW 2109, Australia)

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Date on which the threshold was crossed</u>: August 29, 2025

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Threshold that is crossed</u>: 15%

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Denominator</u>: 37,544,782

&nbsp;&nbsp;&nbsp;&nbsp;· <u>Notified details</u>:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **A) Voting rights** | **Previous <br> notification** | **After the transaction** | **After the transaction** | **After the transaction** | **After the transaction** |
|  | **# of voting rights** | **# of voting rights** | **# of voting rights** | **% of voting rights** | **% of voting rights** |
| **Holders of voting rights** |  | **Linked to <br> securities** | **Not linked to<br> the securities** | **Linked to <br> securities** | **Not linked to <br> the securities** |
| Cochlear Limited | 0 | 0 | 0 | 0.00% | 0.00% |
| Cochlear Investments Pty Ltd | 3947617 | 5631319 | 0 | 15.00% | 0.00% |
| Subtotal | 3947617 | 5631319 |  | 15.00% |  |
| **TOTAL** | **TOTAL** | 5631319 | 0 | 15.00% | 0.00% |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· <u>Full chain of controlled undertakings through which the holding is effectively held</u>: Cochlear Investments
Pty Ltd is a wholly owned subsidiary of Cochlear Limited, which is listed on the Australian Securities Exchange and has no controlling
shareholder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· <u>Additional information</u>: This notification concerns a downward crossing of the 15% threshold following
a passive decrease, whereby Cochlear Investments Pty Ltd's holding in Nyxoah fell from 15.04% to 14.999% of the voting rights.

\*

\* \*

**Contact:**

**Nyxoah**

John Landry, CFO

IR@nyxoah.com