Company: NYXH
Filing Date: 2025-03-20
Form Type: F-3
Source: 0001104659-25-026217
Chunk: 58

Company: Nyxoah SA
Filing Date: 2025-03-20
Form: F-3
Chunk 58
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ILUTION                                                             | ​ | ​ | ​ | ​ | S-12 | ​ | ​ |
| ​ | MATERIAL UNITED STATES FEDERAL INCOME AND BELGIAN TAX CONSIDERATIONS | ​ | ​ | ​ | ​ | S-13 | ​ | ​ |
| ​ | PLAN OF DISTRIBUTION                                                 | ​ | ​ | ​ | ​ | S-30 | ​ | ​ |
| ​ | LEGAL MATTERS                                                        | ​ | ​ | ​ | ​ | S-31 | ​ | ​ |
| ​ | EXPERTS                                                              | ​ | ​ | ​ | ​ | S-31 | ​ | ​ |
| ​ | ENFORCEMENT OF JUDGMENTS                                             | ​ | ​ | ​ | ​ | S-31 | ​ | ​ |
| ​ | WHERE YOU CAN FIND MORE INFORMATION                                  | ​ | ​ | ​ | ​ | S-33 | ​ | ​ |
| ​ | INCORPORATION OF DOCUMENTS BY REFERENCE                              | ​ | ​ | ​ | ​ | S-34 | ​ | ​ |

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TABLE OF CONTENTS

### ABOUT THIS PROSPECTUS SUPPLEMENT
This prospectus supplement is part of a registration statement that we filed with the Securities and Exchange Commission, or SEC, utilizing a “shelf” registration process. Under this shelf registration process, we may from time to time sell ordinary shares representing our ordinary shares having an aggregate offering price of up to $50.0 million under this prospectus supplement at prices and on terms to be determined by market conditions at the time of the offering.

Before buying any of the ordinary shares that we are offering, we urge you to carefully read this prospectus supplement and all of the information incorporated by reference herein and therein, as well as the additional information described under the headings “Where You Can Find More Information” and “Incorporation of Documents by Reference.” These documents contain important information that you should consider when making your investment decision.

We provide information to you about this offering of our ordinary shares in two separate documents that are bound together: (1) this prospectus supplement, which describes the specific details regarding this offering; and (2) the accompanying base prospectus, which provides general information, some of which may not apply to this offering. Generally, when we refer to this “prospectus,” we are referring to both documents combined. If information in this prospectus supplement is inconsistent with the accompanying base prospectus, you should rely on this prospectus supplement. To the extent there