Nyxoah SA

Declaration of Voting Results & Voting Rights Announcements • Jun 3, 2024

2) Issuer

1) Status of the notification

	Final
	Name NYXOAH
Identification number 0817-149-675

3) Reason for the notification

Acquisition or disposal of voting securities or voting rights

4) Notification by

A parent undertaking or a controlling person

5) Persons subject to the notification requirement

Name	Address (for legal entities)
BlackRock, Inc.	50 Hudson Yards, New York, NY, 10001, U.S.A.
BlackRock Advisors, LLC	50 Hudson Yards, New York, NY, 10001, U.S.A.
BlackRock Fund Advisors	400 Howard Street, San Francisco, CA, 94105, U.S.A.
BlackRock Investment Management (UK) Limited	12 Throgmorton Avenue, London, EC2N 2DL, U.K.
BlackRock Investment Management, LLC	1 University Square Drive, Princeton, NJ, 8540, U.S.A.

6) Persons that dispose of voting rights (only to be filled in if art. 7 of the Law applies)

Name ^A + Part II 7) Date on which the threshold is crossed 28/05/2024 (DD/MM/YYYY) 3 Please continue entering the information in part II concerning the persons referred to in Sections 5 and 6 Address (for legal entities) 8) Threshold that is crossed (in %)

If the holding has fallen below the lowest threshold, you have the option of not entering any numbers in Section 10

9) Denominator

34,060,390

Please enter the denominator before filling in the data

10) Notified details

A) Voting rights	Previous notification		After the transaction
	# of voting rights		# of voting rights		% of voting rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities	S
BlackRock, Inc.		0		0.00%		1
BlackRock Advisors, LLC		1071561		3.15%		1

0

0

0

² +

² +

	TOTAL	1,097,929	0	3.22%	0.00%
Subtotal		1097929		3.22%		S	+
BlackRock Investment Management, LLC		25242		0.07%		1	-
BlackRock Investment Management (UK) Limited		1080		0.00%		1	-
BlackRock Fund Advisors		46		0.00%		1	-

Start with "groups" of holders. Add subtotals with S, and then finish with the persons who are "alone".

For groups, start with the ultimate controlling natural person or legal entity.

The totals, subtotals and % will be updated once you have clicked on .

B) Equivalent financial instruments			After the transaction
Holders of equivalent financial instruments	Type of financial instrument		Expiration date Exercise period or date	# of voting rights that may be acquired if the instrument is exercised	% of voting rights	Settlement
BlackRock Advisors, LLC	Securities Lent			17600	0.05%	physical	-
BlackRock Fund Advisors	Securities Lent			900	0.00%	physical	+
TOTAL				18,500	0.05%
	The totals will be updated once you have clicked on
	TOTAL (A & B)				# of voting rights % of voting rights

11) Full chain of controlled undertakings through which the holding is effectively held, if applicable

Please see the full chain of control in "Chain of Control" tab.

CALCULATE 1,116,429 3.28%

12) In case of proxy voting for only one GM

				(DD/MM/YYYY)
Holder	will cease to hold / will hold again	0	voting rights as of

13) Additional information

The disclosure obligation arose due to voting rights attached to shares for BlackRock, Inc. going above 3%. Additionally, total holdings for BlackRock, Inc. went above 3%. The disclosure obligation arose due to voting rights attached to shares for BlackRock Advisors, LLC going above 3%. Additionally, total holdings for BlackRock Advisors, LLC went above 3%.

	Done at 12 Throgmorton Avenue, London EC2N 2DL, UK
On		29/05/2024 (DD/MM/YYYY)
	Name & capacity Jana Blumenstein, Director		Signature

For security reasons, the unsigned form in xlsx format should be transmitted to trp.fin@fsma.be. You can do this manually OR if you have MS Outlook at your disposal via the "Save & Send" button.

In addition, a signed copy in PDF format should also be transmitted.

11) Full chain of controlled undertakings through which the holding is effectively held, if applicable

Name

BlackRock, Inc. Trident Merger, LLC BlackRock Investment Management, LLC

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Holdco 3, LLC BlackRock Cayman 1 LP BlackRock Cayman West Bay Finco Limited BlackRock Cayman West Bay IV Limited BlackRock Group Limited BlackRock Finance Europe Limited BlackRock Investment Management (UK) Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock Holdco 4, LLC BlackRock Holdco 6, LLC BlackRock Delaware Holdings Inc. BlackRock Fund Advisors

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock Capital Holdings, Inc. BlackRock Advisors, LLC