Nyxoah Interim Financial Report: First Half 2025

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Key Insights

🚀 Business Performance: Nyxoah reports revenue of €2.4 million for H1 2025, a net loss of €43.0 million, and highlights European and Middle East sales growth.
✅ FDA Approval: The company received FDA approval for its Genio® system, enabling commercial launch in the United States.
🔬 Clinical Updates: Positive outcomes from DREAM and BETTER SLEEP trials drive expansion and FDA breakthrough designation for CCC patients.
🌍 Strategic Expansion: Focused on European commercialization, entering new international markets, and managing supply and manufacturing.
⚖️ Financial Position: Cash and equivalents at €43.0 million, managing debt, warrants, and share-based compensation, with risk factors related to finance and market.

#Businessanalysis #Companyreport #Financialperformance #Interimreport #Financialreport #Q22025earnings #Quarter2earnings #Earningsseason #Q2earnings #Q22025 #Financialresults #Q225earnings

INTERIM FINANCIAL REPORT
FIRST HALF 2025
TABLE OF CONTENTS
Interim financial report............................................................................................................................................................... 3
1. BUSINESS UPDATE ................................................................................................................................................ 3
2. FINANCIAL HIGHLIGHTS ..................................................................................................................................... 4
3. 2025 OUTLOOK........................................................................................................................................................ 5
4. RISK FACTORS........................................................................................................................................................ 5
5. FORWARD-LOOKING STATEMENTS.................................................................................................................. 5
Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 – Interim
consolidated statement of financial position............................................................................................................................... 7
Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 - Interim
consolidated statements of loss and other comprehensive loss................................................................................................... 8
Unaudited condensed consolidated interim financial information as at and for the six months ended, June 30 2025 - Interim
consolidated statements of changes in equity............................................................................................................................. 9
Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 – Interim
consolidated statements of cash flows...................................................................................................................................... 10
Notes to the unaudited condensed interim consolidated financial information ........................................................................ 11
1. General information.................................................................................................................................................. 11
2. Material accounting policies..................................................................................................................................... 11
3. Critical accounting estimates and assumptions......................................................................................................... 12
4. Segment reporting .................................................................................................................................................... 13
5. Fair Value................................................................................................................................................................. 13
6. Subsidiaries .............................................................................................................................................................. 14
7. Property, Plant and Equipment................................................................................................................................. 14
8. Intangible assets ....................................................................................................................................................... 15
9. Right of use assets and lease liabilities..................................................................................................................... 15
10. Other long-term receivables ..................................................................................................................................... 15
11. Inventory .................................................................................................................................................................. 16
12. Trade receivables, Contract assets and Other receivables......................................................................................... 16
13. Other current assets.................................................................................................................................................. 17
14. Cash and cash equivalents........................................................................................................................................ 17
15. Financial assets......................................................................................................................................................... 17
16. Share Capital, Share Premium, Reserves.................................................................................................................. 17
17. Share-Based compensation....................................................................................................................................... 19
18. Financial Debt .......................................................................................................................................................... 24
19. Provisions................................................................................................................................................................. 26
20. Trade payables.......................................................................................................................................................... 27
21. Income taxes and deferred taxes............................................................................................................................... 27
22. Other liabilities......................................................................................................................................................... 27
23. Foreign currency swaps and forwards...................................................................................................................... 27

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24. Results of operation.................................................................................................................................................. 28
25. Employee benefits.................................................................................................................................................... 32
26. Financial income ...................................................................................................................................................... 32
27. Financial expense ..................................................................................................................................................... 33
28. Earnings/(Loss) Per Share (EPS).............................................................................................................................. 33
29. Other commitments.................................................................................................................................................. 34
30. Related Party Transactions....................................................................................................................................... 34
31. Events after the Balance-Sheet Date......................................................................................................................... 36
Responsibility statement .......................................................................................................................................................... 37

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INTERIM FINANCIAL REPORT
FIRST HALF 2025
1. BUSINESS UPDATE
A. CLINICAL UPDATE
DREAM US: IDE PIVOTAL STUDY
Nyxoah initiated its pivotal DREAM IDE trial in the United States in December 2020 to support an application seeking FDA
marketing authorization and, ultimately, reimbursement in the U.S. for bilateral hypoglossal nerve stimulation for the treatment
of moderate-to-severe obstructive sleep apnea (“OSA”). The DREAM trial is a multicenter, prospective, open-label trial in
which patients who undergo implantation of the Genio® system will be followed for five years post-implantation to assess the
safety and efficacy of the Genio® system in patients with moderate-to-severe OSA.
The trial was initially expected to enroll 134 patients who will undergo the implantation procedure with 12-month effectiveness
and safety primary endpoints across 18 centers in the United States and six international sites. In April 2022, the FDA approved
the Company’s request to reduce the trial’s sample size to 115 patients from 134 after reviewing data from the BETTER SLEEP
trial (see below).
The primary safety endpoint is incidence of device-related severe adverse events ("SAEs") at 12-months post implantation.
The co-primary effectiveness endpoints are the percentage of responders with at least a 50% reduction on the apnea-hypopnea
index ("AHI") with hypopneas associated with a 4% oxyhemoglobin desaturation and a remaining AHI with hypopneas
associated with a 4% oxyhemoglobin desaturation less than 20, and a 25% reduction on the oxygen desaturation index ("ODI")
between baseline and 12-month visits. Patients with moderate to severe OSA (AHI score between 15 and 65) and aged between
22 and 75 years are eligible for enrolment if they failed, did not tolerate or refused positive airway pressure ("PAP") treatment.
Patients with a body mass index above 32 kg/m2, a complete concentric collapse ("CCC") observed during a drug induced
sleep endoscopy and combined central and mixed AHI above 25% at baseline polysomnography are to be excluded.
On March 19, 2024, the Company reported the DREAM study met its primary endpoints on an intent-to-treat (ITT) basis, with
an Apnea-Hypopnea Index (AHI) responder rate of 63.5% (p=0.002) and an Oxygen Desaturation Index (ODI) responder rate
of 71.3% (p<0.001). Additionally, the study demonstrated a median 12-month AHI reduction of 70.8%. There were 11 serious
adverse events, or SAEs, in ten subjects resulting in an SAE rate of 8.7%. Out of the 11 SAEs, three were device-related and
there were three explants. The Company filed the fourth and final module of the modular premarket approval (PMA) application
at the end of the second quarter 2024.
On August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial launch
in the United States.
BETTER SLEEP: ACHIEVED PRIMARY ENDPOINT IN BOTH CCC AND NON-CCC PATIENT COHORTS
In March 2022, the Company attended the World Sleep Congress in Rome, Italy, and presented data generated from its
BETTER SLEEP trial, a multicenter, prospective, open-label, two-group clinical trial, designed to assess the long-term safety
and performance of the Genio® system for the treatment of adult OSA patients with and without CCC of the soft palate over a
period of 36 months post-implantation. The BETTER SLEEP trial included a subgroup of CCC patients, which is a patient
population that is contraindicated for unilateral hypoglossal nerve stimulation.
In the BETTER SLEEP trial, 42 patients were implanted with the Genio® system, 18 of whom presented with CCC (or 42.9%
of the total implanted population) at eight research centers in Australia. The primary safety endpoint was the incidence of
device-related SAEs six months post-implantation. The primary performance endpoint was achieving at least a 4-point
reduction in the apnea-hypopnea index (4% oxygen desaturation, or AHI4) from baseline at six months for the entire patient
cohort. Patients with moderate to severe AHI scores (15 < AHI < 65) and aged between 21 and 75 years were eligible for
enrollment if they failed, refused or did not tolerate PAP treatment. Patients with a body mass index above 32 kg/m2 were
excluded.
Three patients in the non-CCC arm and three patients in the CCC arm did not complete their six-month polysomnography, and
as a result, the analysis was calculated based on 36 patients (21 non-CCC and 15 CCC). Of these 36 patients, there were 23
responders (64%), including nine of the 15 CCC patients (60%) and 14 of the 21 non-CCC patients (67%), at six months. The
overall reduction was statistically significant with an 11-point reduction (p<0.001), with statistically significant reductions of
10 points (p=0.001) in the CCC cohort and 11 points (p<0.001) in the non-CCC cohort. In addition, mean AHI4 reduction
exceeded 70% among responders in both CCC and non-CCC cohorts. These results are subject to final review and validation.

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With respect to the primary safety endpoint, preliminary unadjudicated safety data showed four SAEs in three patients during
the six-month post-implantation period. Of those, two SAEs in one patient were reported as device related, one SAE in one
patient was reported as procedure and device related, and one SAE in one patient was reported as unrelated to procedure or
device. Final review and adjudication of SAEs and adverse events ("AEs") have not yet been completed by an independent
clinical events committee and as a result the characterization of SAEs or AEs could be subject to change.
While additional data, including responder rates, remains subject to ongoing review and continues to be analyzed, the Company
observed in the per protocol group a 70% responder rate in the non-CCC patient subgroup based on the Sher criteria. The per
protocol group consisted of 35 patients and excluded five patients from the mITT analysis population: two of these patients
were lost to follow-up, one patient did not comply with the study protocol, and two patients were removed from the study by
the investigator, one for hostility towards staff and one having returned to continuous positive airway pressure, therapy.
The Company expects to announce additional data with respect to the trial as further analyses are conducted and seeks to
publish the full data set from the trial in a peer-reviewed publication. There will be no additional enrollment in the BETTER
SLEEP trial. However, the Company will continue to monitor patients in the evaluable patient population and plan to continue
evaluating over the course of three years following implantation.
The data generated from this study were used to expand the Company’s CE mark for the Genio® system to treat patients
demonstrating CCC at the soft palate level, and the first commercial Genio® implants occurred in CCC patients in Germany
during the first quarter of 2022.
ACCCESS U.S. IDE STUDY SEEKING APPROVAL TO TREAT CCC PATIENTS
In the United States, supported by the BETTER SLEEP study data, the FDA in September 2021 granted Breakthrough Device
Designation for the Genio® system in order to shorten the approval path to treat CCC patients. Following a series of sprint
discussions with the FDA regarding the design of a trial called ACCCESS to assess the safety and efficacy of the Genio®
system on CCC patients, the FDA approved the Company’s IDE application in July 2022.
In this study, Nyxoah will implant up to 106 patients across up to 40 implant sites with co-primary efficacy endpoints of AHI
responder rate, per the Sher criteria, and ODI responder rate, both assessed at 12 months post-implant. The clinical sites are
being activated and the study is enrolling.
B. EUROPEAN COMMERCIALIZATION
During the second quarter and first half of 2025, Nyxoah recognized total revenue of €1.3 million and €2.4 million respectively,
supported by the German commercial organization with a total of 14 full-time employees as of June 30 2025 (as of December
31 2024: 14 full time employees).
Nyxoah’s commercial strategy is focused on creating a Center of Excellence ecosystem, with a high level of clinical expertise
between implanting ENT surgeons and sleep physicians who can provide more treatment options to their large patient pools.
The Company has also focused on entering new international markets:
• In Q4 2024, the Company entered the SSDP (Specialised Services Devices Program) with the NHS in the UK and
generated its first revenue that same quarter;
• In Q1 2025, the Company initiated commercialization in the Middle East region through a distributor agreement and
generated its first revenue in Dubai that same quarter. In Q2 2025, the Company generated its first revenue in Kuwait
and Abu Dhabi; and
• Nyxoah has also generated revenue in Austria, Spain and Italy and the Company expects to expand into other
European countries and Middle East markets, pending feedback on submitted reimbursement dossiers.
2. FINANCIAL HIGHLIGHTS
Revenue was €2.4 million for the six months ended June 30, 2025, compared to €2.0 million for the six months ended June 30,
2024.
Cost of goods sold was €0.9 million for the six months ended June 30, 2025, compared to €0.7 million for the six months ended
June 30, 2024.
Selling, general and administrative expenses increased by €10.7 million or 86.7 % from €12.4 million for the six months ended
June 30, 2024 to €23.1 million for the six months ended June 30, 2025, due to an increase in costs to support the

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commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the
Genio® system in the U.S. following receipt of FDA approval.
Before capitalization of €1.6 million for the six months ended June 30, 2025 and €3.3 million for the six months ended June
30, 2024, research and development expenses increased by €2.6 million or 14.7 %, from €18.0 million for the six months ended
June 30, 2024, to €20.6 million for the six months ended June 30, 2025. This increase was mainly due to the combined effect
of higher R&D activities and consulting fees. This increase was offset by a decrease in clinical study expenses. Additionally,
IT costs decreased due to the initiation of a new ERP implementation in 2023 (we refer to the HY report 2024, note 22 – Results
of operation – Research and development expenses).
Nyxoah realized a net negative financial result of €2.1 million for the six months ended June 30, 2025 primarily driven by the
exchange rate depreciation of the U.S. dollar versus the Euro and interest expense on the term loan entered into in July 2024.
This compares to a net positive financial result of €1.0 million for the six months ended June 30, 2024.
Nyxoah realized a net loss of €43.0 million for the six months ended June 30, 2025, compared to a net loss of €25.0 million for
the six months ended June 30, 2024.
Cash and cash equivalents
On June 30, 2025, cash and cash equivalents and financial assets totaled €43.0 million, compared to €85.6 million on December
31, 2024. The decrease in financial assets is due to the use of proceeds from the sale of term deposits to support operating
activities.
3. 2025 OUTLOOK
The Company expects to continue ramping up sales in Germany as well as in other European countries where we are already
present and in select European and Middle East markets, subject to the receipt of favorable reimbursement for the Company’s
product in those markets.
In the U.S., on August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial
launch in the United States.
4. RISK FACTORS
We refer to the description of risk factors in the Company's 2024 annual report, pp. 76-98. In summary, the principal risks and
uncertainties faced by us relate to our financial situation and need for additional capital, clinical development of our product
candidates, commercialization and reimbursement of our product candidates, our dependence on third parties and on key
personnel, the markets and countries in which we operate, the manufacturing of our product candidates, legal and regulatory
compliance matters, our intellectual property (including the outcome of any ongoing IP litigation), our organization and
operations.
5. FORWARD-LOOKING STATEMENTS
This interim management report contains forward-looking statements. All statements other than present and historical facts and
conditions contained in this report, including statements regarding our future results of operations and financial position,
business strategy, plans and our objectives for future operations, are forward-looking statements. When used in this report, the
words “anticipate,” “believe,” “can,” “could,” “estimate,” “expect,” “intend,” “is designed to,” “may,” “might,” “plan,”
“potential,” “predict,” “objective,” “should,” or the negative of these and similar expressions identify forward-looking
statements. By their nature, forward-looking statements involve risks and uncertainties, and readers are cautioned that any such
forward-looking statements are not guarantees of future performance. Nyxoah’s actual results may differ materially from those
predicted by the forward-looking statements as a result of various important factors, including Nyxoah’s expectations regarding
the inherent uncertainties associated with competitive developments, clinical trial and product development activities,
regulatory approval requirements and FDA approval timelines; Nyxoah’s reliance on collaborations with third parties;
estimating the commercial potential of Nyxoah’s product candidates; Nyxoah’s ability to obtain and maintain protection of
intellectual property for its technologies; Nyxoah’s limited operating history; and Nyxoah’s ability to obtain additional funding
for operations and to complete the development and commercialization of its product candidates. A further list and description
of these risks, uncertainties and other risks can be found in Nyxoah’s 2024 annual report. Given these uncertainties, the reader
is advised not to place any undue reliance on such forward-looking statements. These forward-looking statements speak only
as at the date of publication of this document. Nyxoah expressly disclaims any obligation to update any such forward-looking
statements in this document, to reflect any change in our expectations with regard thereto or any change in events, conditions

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or circumstances on which any such statement is based or that may affect the likelihood that actual results will differ from those
set forth in the forward-looking statements, unless specifically required by applicable law or regulation.

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NYXOAH SA
UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND
FOR THE SIX MONTHS ENDED JUNE 30, 2025 –
INTERIM CONSOLIDATED STATEMENT OF FINANCIAL POSITION
(unaudited)
(in thousands)
As at
Notes June 30
2025
December 31
2024
ASSETS
Non-current assets
Property, plant and equipment 7 5 015 4 753
Intangible assets 8 51 407 50 381
Right of use assets 9 3 059 3 496
Deferred tax asset 76 76
Other long-term receivables 10 1 799 1 617
€ 61 356 € 60 323
Current assets
Inventory 11 5 332 4 716
Trade receivables 12 1 330 3 382
Contract assets 12 1 508 −
Other receivables 12 3 014 2 774
Other current assets 13 944 1 656
Financial assets 15 20 257 51 369
Cash and cash equivalents 14 22 729 34 186
€ 55 114 € 98 083
Total assets € 116 470 € 158 406
EQUITY AND LIABILITIES
Share capital and reserves
Share capital 16 6 431 6 430
Share premium 16 314 388 314 345
Share based payment reserve 17 11 645 9 300
Other comprehensive income 16 1 144 914
Retained loss (260 211) (217 735)
Total equity attributable to shareholders € 73 397 € 113 254
LIABILITIES
Non-current liabilities
Financial debt 18 18 928 18 725
Lease liability 9 2 157 2 562
Provisions 19 404 1 000
Deferred tax liability 34 19
Contract liability 24 225 472
Other liability 22 379 845
€ 22 127 € 23 623
Current liabilities
Financial debt 18 246 248
Lease liability 9 1 071 1 118
Trade payables 20 9 408 9 505
Current tax liability 21 3 990 4 317
Contract liability 24 460 117
Other liability 22 5 771 6 224
€ 20 946 € 21 529
Total liabilities € 43 073 € 45 152
Total equity and liabilities € 116 470 € 158 406
The accompanying notes are an integral part of these condensed consolidated interim financial statements.

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NYXOAH SA
UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND
FOR THE SIX MONTHS ENDED JUNE 30, 2025 -
INTERIM CONSOLIDATED STATEMENTS OF LOSS AND OTHER COMPREHENSIVE LOSS
(unaudited)
(in thousands)
For the three months
ended June 30
For the six months
ended June 30
Notes 2025 2024 2025 2024
Revenue 24 1 340 771 2 404 1 992
Cost of goods sold 24 ( 490) ( 281) ( 896) ( 735)
Gross profit € 850 € 490 € 1 508 € 1 257
Research and Development Expense 24 (10 059) (7 472) (19 048) (14 671)
Selling, General and Administrative Expense 24 (10 672) (6 383) (23 063) (12 355)
Other income 31 58 115 249
Operating loss for the period € (19 850) € (13 307) € (40 488) € (25 520)
Financial income 26 2 858 2 069 5 480 3 477
Financial expense 27 (3 337) (1 445) (7 579) (2 436)
Loss for the period before taxes € (20 329) € (12 683) € (42 587) € (24 479)
Income taxes 21 ( 278) ( 441) ( 404) ( 551)
Loss for the period € (20 607) € (13 124) € (42 991) € (25 030)
Loss attributable to equity holders € (20 607) € (13 124) € (42 991) € (25 030)
Other comprehensive loss
Items that may be subsequently reclassified to profit or loss (net of
tax)
Currency translation differences 232 ( 82) 230 ( 22)
Total comprehensive loss for the year, net of tax € (20 375) € (13 206) € (42 761) € (25 052)
Loss attributable to equity holders € (20 375) € (13 206) € (42 761) € (25 052)
Basic Loss Per Share (in EUR) 28 € (0.551) € (0.428) € (1.149) € (0.843)
Diluted Loss Per Share (in EUR) 28 € (0.551) € (0.428) € (1.149) € (0.843)
The accompanying notes are an integral part of these condensed consolidated interim financial statements

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NYXOAH SA
UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND
FOR THE SIX MONTHS ENDED, JUNE 30 2025 -
INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
(unaudited)
(in thousands)
Attributable to owners of the parent
Common
shares
Share
premium
Share
based
payment
reserve
Other
comprehe
nsive
income
Retained
loss Total
Balance at January 1, 2025 € 6 430 € 314 345 € 9 300 € 914 € (217 735) € 113 254
Loss for the period − − − − (42 991) (42 991)
Other comprehensive income for the period − − − 230 − 230
Total comprehensive income/(loss) for the period - - - € 230 € (42 991) € (42 761)
Equity-settled share-based payments
Granted during the period − − 2 860 − − 2 860
Expired during the period − − ( 466) − 466 −
Exercised during the period 1 43 ( 49) − 49 44
Total transactions with owners of the company
recognized directly in equity 1 43 2 345 − 515 2 904
Balance at June 30, 2025 € 6 431 € 314 388 € 11 645 € 1 144 € (260 211) € 73 397
Attributable to owners of the parent
Common
shares
Share
premium
Share
based
payment
reserve
Other
comprehe
nsive
income
Retained
loss Total
Balance at January 1, 2024 € 4 926 € 246 127 € 7 661 € 137 € (160 829) € 98 022
Loss for the period − − − − (25 030) (25 030)
Other comprehensive loss for the period − − − ( 22) − ( 22)
Total comprehensive loss for the period - - - € ( 22) € (25 030) € (25 052)
Equity-settled share-based payments
Granted during the period − − 1 499 − − 1 499
Expired during the period − − ( 186) − 186 −
Exercised during the period 4 143 ( 133) − 133 147
Issuance of shares for cash 975 47 452 − − − 48 427
Transaction costs − (2,900) − − − (2,900)
Total transactions with owners of the company
recognized directly in equity 979 44 695 1 180 − 319 47 173
Balance at June 30, 2024 € 5 905 € 290 822 € 8 841 € 115 € (185 540) € 120 143
The accompanying notes are an integral part of these condensed consolidated interim financial statements.

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NYXOAH SA
UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND
FOR THE SIX MONTHS ENDED JUNE 30, 2025 –
INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited)
(in thousands)
For the six months ended
June 30
Notes 2025 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Loss before tax for the year € (42 587) € (24 479)
Adjustments for
Finance income (5 480) (3 477)
Finance expenses 7 579 2 436
Depreciation and impairment of property, plant and equipment and
right-of-use assets 7, 9 1 071 790
Amortization of intangible assets 8 477 480
Share-based payment transaction expense 17 2 860 1 499
(Decrease)/Increase in provisions ( 596) 179
Other non-cash items 100 ( 153)
Cash used before changes in working capital € (36 576) € (22 725)
Increase in inventory 11 ( 616) (1 783)
(Increase)/Decrease in trade and other receivables 12 725 ( 290)
Increase in trade and other liabilities 20,22 1 472 1 412
Cash used from changes in operations € (34 995) € (23 386)
Income tax paid ( 258) ( 207)
Net cash used in operating activities € (35 253) € (23 593)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment 7 ( 761) ( 448)
Capitalization of intangible assets 8 (1 554) (3 295)
Purchase of financial assets - current 15 (17 549) (59 171)
Proceeds from sale of financial assets - current 15 45 067 46 145
Interest income on financial assets 1 583 1 205
Net cash generated/(used) in investing activities € 26 786 € (15 564)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment of principal portion of lease liabilities 9 ( 609) ( 546)
Repayment of other loan − ( 42)
Interests paid ( 602) ( 24)
Proceeds from issuance of shares, net of transaction costs 16 44 45 674
Other financial costs ( 35) ( 81)
Net cash generated/(used) from financing activities € (1 202) € 44 981
Movement in cash and cash equivalents € (9 669) € 5 824
Effect of exchange rates on cash and cash equivalents (1 788) 290
Cash and cash equivalents at January 1 14 € 34 186 € 21 610
Cash and cash equivalents at June 30 14 € 22 729 € 27 724
The accompanying notes are an integral part of these condensed consolidated interim financial statements.

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NYXOAH SA
NOTES TO THE UNAUDITED CONDENSED INTERIM CONSOLIDATED FINANCIAL
INFORMATION
1. General information
Nyxoah SA (the “Company”) is a public listed company with limited liability (naamloze vennootschap/société anonyme)
incorporated and operating under the laws of Belgium and is domiciled in Belgium. The Company is registered with the legal
entities register (Brabant Walloon) under enterprise number 0817.149.675. The Company’s registered office is in Rue Edouard
Belin 12, 1435 Mont-Saint-Guibert, Belgium.
The Company is a medical technology company focused on the development and commercialization of innovative solutions to
treat Obstructive Sleep Apnea, or OSA. Our lead solution is the Genio® system, a CE-Marked, patient-centric, minimally
invasive, next generation hypoglossal neurostimulations therapy for OSA. OSA is the world’s most common sleep disordered
breathing condition and is associated with increased mortality risk and comorbidities including cardiovascular diseases,
depression and stroke.
The Genio® system is the first neurostimulation system for the treatment of OSA to include a battery-free and leadless
neurostimulator capable of delivering bilateral hypoglossal nerve stimulation to keep the upper airway open. The product is
intended to be used as a second-line therapy to treat moderate to severe OSA patients who have either not tolerated, failed or
refused conventional therapy, including Continuous Positive Airway Pressure, or CPAP, which, despite its proven efficacy, is
associated with many limitations, meaning compliance is a serious challenge. In addition, other second-line treatments are more
suitable to treat mild to moderate OSA (such as oral devices) or highly invasive. Compared to other hypoglossal nerve
stimulation technologies for the treatment of OSA, the Genio® system is a disruptive, differentiating technology that targets a
clear unmet medical need thanks to its minimally invasive and quick implantation technique, its external battery and its ability
to stimulate the two branches of the hypoglossal nerve.
Obstructive sleep apnea is the world’s most common sleep disordered breathing condition. OSA occurs when the throat and
tongue muscles and soft tissues relax and collapse. It makes a person stop breathing during sleep, while the airway repeatedly
becomes partially (hypopnea) or completely (apnea) blocked, limiting the amount of air that reaches the lungs. During an
episode of apnea or hypopnea, the patient’s oxygen level drops, which leads to sleep interruptions.
Nyxoah SA has established four wholly owned subsidiaries: Nyxoah Ltd, a subsidiary of the Company since October 21, 2009
(located in Israel and incorporated on January 10, 2008 under the name M.L.G. Madaf G. Ltd), Nyxoah Pty Ltd since
February 1, 2017 (located in Australia) and Nyxoah Inc. since May 14, 2020 (located in the USA) and Nyxoah GmbH since
July 26, 2023 (located in Germany).
The interim condensed consolidated financial statements of Nyxoah SA and its subsidiaries (collectively, the Group) as of June
30, 2025 and for the three and six months ended June 30, 2025, have been authorized for issue on August 18, 2025 by the
Board of Directors of the Company.
2. Material accounting policies
Basis of Preparation of the interim condensed consolidated financial statements
The Company’s interim condensed consolidated financial statements have been prepared in accordance with International
Accounting Standard 34 – Interim Financial Reporting (“IFRS”), as issued by the International Accounting Standards Board
(IASB) and as endorsed by the European Union. They do not include all the information required for complete annual financial
statements and should be read in conjunction with the Company’s last annual consolidated financial statements as at and for
the year ended December 31, 2024.
Except for the application of standards, interpretations and amendments being mandatory as of January 1, 2025, the accounting
policies used for the preparation of the interim condensed consolidated financial statements are consistent with those used for
the preparation of the Company’s annual consolidated financial statements as of and for the year ended December 31, 2024.
The consolidated financial statements are presented in thousands of Euros (€) and all values are rounded to the nearest
thousands, except when otherwise indicated (e.g. € million).
The preparation of the interim condensed consolidated financial statements requires the use of certain critical accounting
estimates. It also requires management to exercise its judgment in the process of applying the Company’s accounting policies.
The areas involving a higher degree of judgement or complexity, are areas where assumptions and estimates are significant to

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the consolidated financial statements. The critical accounting estimates used in the preparation of the interim consolidated
financial statements are consistent with those followed in the preparation of the Company’s annual consolidated financial
statements as of and for the year ended December 31, 2024.
Going concern principle
The Company has consistently operated with deficits and sustained negative cash flows since its inception as a result of the
significant research and development expenses incurred for the development and regulatory approval of the Genio® device.
As at June 30, 2025, the Company's statement of financial position includes an accumulated loss of €260.2 million and total
assets of €116.5 million. Current assets as at June 30, 2025 total €55.1 million, comprising €22.7 million in available cash and
cash equivalents, and €20.3 million in marketable securities, primarily derived from previous public offerings.
The Company’s current operating plan indicates that it will continue to incur losses from operations and generate negative cash
flows from operating activities given ongoing expenditures related to its U.S. commercial launch and the completion of its
clinical trials only partially offset by the Company’s revenue generating activities outside the U.S., these were €2.4 million in
the first half of 2025 mainly in the EU. Revenue generation is expected to start in the second half of 2025, now that the
Company, on August 8, 2025, received FDA marketing approval for its Genio® system, enabling the commercial launch in the
United States.
The Company projects that its existing cash and cash equivalents and marketable securities should be sufficient to fund
operations until early 2026. To meet the Company’s future working capital needs, management is actively exploring different
financing avenues, including the public or private issuance of equity and debt financing. Additional funds are pivotal for diverse
activities, in particular to launch the Genio® product in the U.S. and the ongoing progression of research and development
projects. This raises, however, a material uncertainty in respect of going concern as the current funds are not sufficient to cover
a period of 12 months as from the date these financials are authorized for issuance.
Although the additional funds have not been raised yet, given the positive outcome from the DREAM trial and the FDA
approval for the Genio® system received on August 8, 2025, the Company is confident that raising sufficient funding to
continue its operations for at least 12 months following the date these financials are authorized for issuance should not pose
significant challenges.
The Unaudited Interim Condensed Consolidated Financial Statements have therefore been prepared on a going concern basis,
which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business.
The Company confirms that despite the conflict between Israel and countries in the region, operations are continuing notably
regarding R&D and production with no major impact and the assets are currently safeguarded. The Company is not suffering
impact of this conflict.
The Company is monitoring potential impacts from the U.S. political environment ("Liberation Day Trump"). There was no
impact on operations or financial results in Q2 2025.
New and amended standards and interpretations applicable
Effective for the annual periods beginning on January 1, 2025
The Group has not early adopted any standard, interpretation or amendment that has been issued but is not yet effective.
The following amendment applies for the first time in 2025, but does not have an impact on the interim condensed consolidated
financial statements of the Company:
• Amendment to IAS 21 The Effect of Changes in Foreign Exchange Rates: Lack of Exchangeability
3. Critical accounting estimates and assumptions
The preparation of interim financial statements in accordance with IFRS requires management to make judgments, estimates
and assumptions that may significantly affect the reported amounts of revenues, expenses, assets and liabilities, and the
disclosure of contingent liabilities at the end of the reporting period.
Refer to the disclosure note 5.5.2 from the Group’s 2024 year-end consolidated financial statements for further details about
the main critical accounting estimates and assumptions.

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4. Segment reporting
Based on the organizational structure, as well as the nature of financial information available and reviewed by the Company’s
chief operating decision makers to assess performance and make decisions about resource allocations, the Company has
concluded that its total operations represent one reportable segment. The chief operating decision maker is the CEO.
5. Fair Value
The carrying amount of cash and cash equivalents, trade receivables, other receivables, financial assets and other current assets
approximate their value due to their short-term character.
The carrying value of current liabilities approximates their fair value due to the short-term character of these instruments. The
fair value of non-current liabilities (financial debt and other non-current liabilities), excluding the derivative financial liabilities,
is evaluated based on their interest rates and maturity date. These instruments have fixed interest rates and their fair value
measurements are subject to changes in interest rates. The fair value measurement is classified as level 3. The sensitivity on
the fair value measurements of the recoverable cash advances are further detailed in note 18.1.
The derivative financial liabilities and assets which consist of foreign currency swaps and forwards are measured at fair value
through profit and loss. Fair value is determined by the financial institution and is based on foreign currency swap and forward
rates and the maturity of the instrument.
The synthetic warrants are measured at fair value through profit and loss. The fair value is determined using a binomial tree
with 240 monthly periods (20 years) and the following key unobservable input:
• Volatility of 66,205%, estimated based on the median of the annualized 90-day standard deviation of daily volatility
of Nasdaq stock prices over the period from July 2022 to June 2025.
A 5% increase in volatility would result in an increase in fair value by €57,000, while a 5% decrease in volatility would result
in a decrease in fair value by €67,000.
The prepayment option is measured at fair value through profit and loss.
There were no changes in the Group’s valuation processes, valuation techniques, and types of inputs used in the fair value
measurements during the period. There were no transfers between level 1 and level 2 fair value measurements during the period
and no transfers into or out of level 3 fair value measurements.

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Carrying value Fair value
(in EUR 000)
As at
June 30,
2025
As at
December 31,
2024
As at
June 30,
2025
As at
December 31,
2024
Financial Assets
Other long-term receivables (level 3) 452 395 452 395
Prepayment option (level 3) 170 112 170 112
Trade and other receivables (level 3) 3 974 4 293 3 974 4 293
Foreign currency swaps and forwards (level 2) 493 − 493 −
Other current assets (level 3) 292 739 292 739
Cash and cash equivalents (level 1) 22 729 34 186 22 729 34 186
Financial assets (level 1) 20 257 51 369 20 257 51 369
Carrying value Fair value
(in EUR 000)
As at
June 30,
2025
As at
December 31,
2024
As at
June 30,
2025
As at
December 31,
2024
Financial liabilities
Loan facility agreement (level 3) 7 093 6 898 7 915 7 151
Synthetic warrants (level 3) 2 696 3 204 2 696 3 204
Foreign currency swaps and forwards (level 2) − 353 − 353
Recoverable cash advances (level 3) 9 385 8 871 9 385 8 871
Trade and other liabilities (level 1 and 3) 10 961 11 338 10 961 11 338
6. Subsidiaries
For all periods that are mentioned in this report, the Company owns 100% of the shares of Nyxoah LTD, an Israeli company
located in Tel-Aviv that was incorporated in 2009 and has a share capital of NIS 1.00.
The Company also owns 100% of the shares of Nyxoah PTY LTD, an Australian Company located in Collingwood that was
incorporated in 2017 and has a share capital of AUD 100.
The Company also owns 100% of the shares of Nyxoah Inc, an US-based company located in Delaware that was incorporated
in May 2000 and has a share capital of USD 1.00.
The Company also owns 100% of the shares of Nyxoah GmbH, a German company located in Eschborn that was acquired in
July 2023 and has a share capital of €25,000.
7. Property, Plant and Equipment
The total acquisitions for the six months ended June 30, 2025 amount to €0.8 million (2024: €448,000) and were mainly related
to the U.S. production line under construction and laboratory equipment.
The cost of property, plant and equipment in 2024 includes a correction of the tax incentive in Belgium on the investments of
2023 for an amount of €93,000. We refer to note 24.
The depreciation charge amounts to €457,000 in 2025 and to €336,000 in 2024 for the six months ended June 30.

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8. Intangible assets
(in EUR 000)
Development
cost
Patents and
licenses Total
Cost
Opening value at January 1, 2024 48 671 591 49 262
Additions 3 183 − 3 183
Cost at June 30, 2024 51 854 591 52 445
Opening value at January 1, 2025 53 410 591 54 001
Additions 1 507 − 1 507
Other movements ( 4) − ( 4)
Cost at June 30, 2025 54 913 591 55 504
Amortization
Opening amortization at January 1, 2024 (2 528) ( 127) (2 655)
Amortization ( 459) ( 21) ( 480)
Amortization at June 30, 2024 (2 987) ( 148) (3 135)
Opening amortization at January 1, 2025 (3 452) ( 168) (3 620)
Amortization ( 456) ( 21) ( 477)
Amortization at June 30, 2025 (3 908) ( 189) (4 097)
Net book value at June 30, 2024 48 867 443 49 310
Net book value at June 30, 2025 51 005 402 51 407
There is only one development project: The Genio® system. The Company started amortizing the first-generation Genio®
system in 2021. The amortization amounted to €477,000 for the six months ended June 30, 2025 (2024: €480,000) and is
included in research and development expense.
The Company continues to incur in 2025 development expenses with regard to the improved second-generation Genio® system
and clinical trials to obtain additional regulatory approvals in certain countries or to be able to sell the Genio® System in certain
countries. The total capitalized development expenses amounted to €1.5 million and €3.2 million for the six months ended June
30, 2025, and 2024, respectively. The total amount of capitalization of intangible assets in the interim consolidated statements
of cash flows is higher than the additions due to the tax incentive relating to investments of 2025 amounting to €47,000 (2024:
€112,000). We refer to note 24 for more details. The development of the second-generation Genio® system and clinical trials
is expected to be finalized in 2025.
9. Right of use assets and lease liabilities
For the six months ended June 30, 2025, the Company entered into new lease agreements for €34,000 (2024: €74,000). The
repayments of lease liabilities amounted to €0.7 million (2024: €0.5 million). The depreciations on the right of use assets
amounted to €0.6 million and €454,000 for the six months ended June 30, 2025, and 2024, respectively.
10. Other long-term receivables
As at
(in EUR 000) June 30, 2025 December 31, 2024
R&D tax incentive 1 177 1 110
Prepayment option 170 112
Cash guarantees 452 395
Total other long term receivables 1 799 1 617
The other long-term receivables consist of cash guarantees for an amount of €452,000 (2024: €395,000), a prepayment option
valued at €170,000 (2024: €112,000) and an R&D tax incentive in Belgium for an amount of €1.2 million (2024: €1.1 million)

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related to certain development activities and clinical trials. The Company recognizes the research and development incentive
as a long-term receivable and as a deduction from the carrying amount of the (in)tangible asset.
For further details regarding the prepayment option, refer to 18.2.
The R&D tax incentive recorded as at June 30, 2025 relates to 2022, 2023, 2024 and 2025 investments both on tangible and
intangible assets. The incentives are expected to be received 5 years after the investments are made. However, following the
Law of May 12, 2024 (Belgian Gazette May 29, 2024), the Belgian R&D tax credit regime has been amended. As of 2024, the
R&D tax incentive will be refunded after 4 years instead of 5 years. The long-term receivable as at 2024 also includes a
correction of the R&D tax incentive in Belgium on the investments of 2023. For further details, refer to note 24.
11. Inventory
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Raw materials 1 290 1 080
Work in progress 2 351 2 546
Finished goods 1 691 1 090
Total Inventory 5 332 4 716
The increase in inventory is due to increasing activities to prepare for the commercialization in US and further scale-up of the
commercialization in EU in 2025.
12. Trade receivables, Contract assets and Other receivables
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Trade receivables 1 330 3 382
Contract assets 1 508 −
R&D incentive receivable (Australia) 196 155
VAT receivable 401 741
Current tax receivable 788 967
Foreign currency swaps and forwards 493 −
Other 1 136 911
Total trade receivables, contract assets and other receivables 5 852 6 156
The decrease of €304,000 in trade receivables, contract assets and other receivables is mainly due to a decrease in VAT
receivable by €340,000 and a decrease in trade receivables and contract assets by €0.5 million. This is partly offset by an
increase in foreign currency swaps and forwards of €493,000.
The Company can include unbilled receivables in its accounts receivable balance. Generally, these receivables represent earned
revenue from products delivered to customers, which will be billed in the next billing cycle. All amounts are considered
collectible and billable. As at December 31, 2024 and June 30, 2025, there were no unbilled receivables included in the trade
receivables.
As of June 30, 2025, the Company has reclassified €1.5 million trade receivables to contract assets in connection with certain
customer contracts for the Genio® system. Under these contracts, the Company has transferred control of the Genio® system
to the customer and issued the related invoices. However, under the contractual terms, the invoices become payable upon the
implantation of the Genio® system in the patient by the customer. As the right to consideration is therefore not unconditional,
the related amounts do not meet the criteria for recognition as trade receivables in accordance with IFRS 15.
R&D incentive receivables relate to incentives received in Australia as a support to the clinical trials and the development of
the Genio® system.
The current tax receivable relates to excess payment of corporate income tax in Belgium and the United States.

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We refer to note 23 for more details on the foreign currency swaps and forwards.
13. Other current assets
As at
June 30 December 31
(in EUR 000) 2025 2024
Deferred charges 650 918
Accrued income 292 739
Total other current assets 942 1 657
The decrease of €0.7 million in other current assets is due to a decrease in accrued income amounting to €447,000 and a
decrease in deferred charges amounting to €268,000.
14. Cash and cash equivalents
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Short term deposit 13 328 28 220
Current accounts 9 401 5 966
Total cash and cash equivalents 22 729 34 186
Cash and cash equivalents decreased to €22.7 million as at June 30, 2025, compared to €34.2 million as at December 31, 2024
which is mainly due to a decrease of short term deposits by €14.9 million which is partially offset by an increase of current
accounts by €3.4 million. The short term deposits relate to term accounts with an initial maturity of 3 months or less, measured
at amortized costs.
15. Financial assets
Current financial assets relate to term accounts with an initial maturity longer than 3 months but less than 12 months measured
at amortized costs.
As at June 30, 2025, the current financial assets consists of $17.0 million (€14.5 million), which could generate a foreign
currency exchange gain or loss in the financial results in accordance with the fluctuations of the USD/EUR exchange rate as
the Company’s functional currency is EUR, and €5.8 million. The total amount of term deposits as at June 30, 2025, amounts
to €20.3 million.
During the period ended as at June 30, 2025, the Company entered into USD term deposits and US Treasury bills for a total
amount of $16.0 million (€14.5 million) and €3.0 million. During the period ended as at June 30, 2025, $42.1 million
(€46.4 million) and €3.0 million reached maturity and is subsequently held as cash.
As at December 31, 2024 the current financial assets consists of $47.4 million (€45.6 million), which could generate a foreign
currency exchange gain or loss in the financial results in accordance with the fluctuations of the USD/EUR exchange rate as
the Company’s functional currency is EUR, and €5.8 million. The total amount of term deposits as at December 31, 2024,
amounts to €51.4 million.
16. Share Capital, Share Premium, Reserves
16.1. Share capital and share premium
The number of shares and the par value in the paragraph below take into account resolutions adopted by the shareholders’
meeting of February 21, 2020. All existing preferred shares were converted into common shares, and then a share split of 500:1
was approved by the shareholders’ meeting. The tables and comments below reflect the number of shares after the share split
of 500:1 as of January 1, 2020.
As part of the IPO on September 21, 2020, the Company incurred direct-attributable transaction costs of €6.5 million which
have been deducted from the share premium.

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As part of the IPO on July 7, 2021, the Company incurred direct-attributable transaction costs of €7.6 million which have been
deducted from the share premium.
As at June 30, 2025, the share capital of the Company amounts to €6.4 million represented by 37 435 640 shares, and the share
premium amounts to €332.6 million before deduction of the transaction costs.
Evolution of the share capital and share premium over the six months ended June 30, 2025 and 2024:
(Number of shares except otherwise stated)
Common
shares
Total of
shares
Par value
(EUR)
Share
capital
Share
premium
January 1, 2024 28 673 985 28 673 985 0.17 4 926 260 631
March 6, 2024 - Exercise warrants 8 650 8 650 0.17 1 61
April 17, 2024 - Exercise warrants 3 000 3 000 0.17 1 16
May 28, 2024 - Capital increase in cash 5 374 755 5 374 755 0.17 923 44 946
June 3, 2024 - Capital increase in cash 300 000 300 000 0.17 52 2 506
June 24, 2024 - Exercise warrants 12 625 12 625 0.17 2 66
June 30, 2024 34 373 015 34 373 015 0.17 5 905 308 226
September 3, 2024 - Exercise warrants 13 750 13 750 0.17 2 72
September 25, 2024 - Exercise warrants 2 250 2 250 0.17 1 12
October 9, 2024 - Capital increase in cash 3 000 000 3 000 000 0.17 515 24 071
November 15, 2024 - Exercise warrants 38 250 38 250 0.17 7 198
December 31, 2024 37 427 265 37 427 265 0.17 6 430 332 579
May 12, 2025 - Exercise warrants 2 000 2 000 0.17 − 10
June 13, 2025 - Exercise warrants 6 375 6 375 0.17 1 33
June 30, 2025 37 435 640 37 435 640 0.17 6 431 332 622
On March 6, 2024, pursuant to the exercise of warrants, the Company issued 8,650 new shares for an aggregate capital increase
of €62,000 (including share premium).
On April 17, 2024, pursuant to the exercise of warrants, the Company issued 3,000 new shares for an aggregate capital increase
of €17,000 (including share premium).
On May 28, 2024, the Company issued 5,374,755 new shares for an aggregate capital increase of €45.9 million (including
share premium) in the framework of an underwritten public offering in the United States, which included shares sold in a
private offering to certain qualified or institutional investors outside the United States. 1,996,187 shares were subscribed to in
euro at a share price of €8.54 per share. 3.378.568 shares were subscribed to in US dollars, at a share price of $9.25 per share.
On June 3, 2024, the Company issued 300,000 new shares for an aggregate capital increase of €2.6 million (including share
premium) as a result of the exercise by the underwriters of the May 28, 2024 capital increase to exercise their option to purchase
additional shares (“greenshoe”). All 300,000 shares were subscribed to in US dollars at a share price of $9.25 per share.
The proceeds of the May 28 and June 3, 2024 capital increases were used for general corporate purposes.
On June 24, 2024, pursuant to the exercise of warrants, the Company issued 12,625 new shares for an aggregate capital increase
of €68,000 (including share premium).
On September 3, 2024, pursuant to the exercise of warrants, the Company issued 13,750 new shares for an aggregate capital
increase of €74,000 (including share premium).
On September 25, 2024, pursuant to the exercise of warrants, the Company issued 2,250 new shares for an aggregate capital
increase of €13,000 (including share premium).
On October 9, 2024, the Company issued 3,000,000 new shares for an aggregate capital increase of €24.6 million (including
share premium). The Company raised $27.0 million in gross proceeds pursuant to the Company’s $50 million at-the-market

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("ATM") program established on December 22, 2022 at an issue price equal to the market price on the Nasdaq Global Market
at the time of the sale. The proceeds will be used to meet demand in Europe and the U.S.
On November 15, 2024, pursuant to the exercise of warrants, the Company issued 38,250 new shares for an aggregate capital
increase of €205,000 (including share premium).
As part of the above capital increases, the Company incurred direct-attributable transaction costs of €3.7 million which were
deducted from the share premium. The proceeds from the capital increase net of transaction costs amounted to €71.5 million.
On May 12, 2025, pursuant to the exercise of warrants, the Company issued 2,000 new shares for an aggregate capital increase
of €10,000 (including share premium).
On June 13, 2025, pursuant to the exercise of warrants, the Company issued 6,375 new shares for an aggregate capital increase
of €34,000 (including share premium).
16.2. Reserves
The reserves include the share-based payment reserve (see note 17), other comprehensive income and the retained loss.
Retained loss is comprised of primarily accumulated losses, other comprehensive income is comprised of currency translation
reserves and remeasurements of post-employment benefit obligations.
The movement in other comprehensive income for the six months ended June 30, 2025 and 2024 is detailed in the table below:
(in EUR 000)
Currency
translation
reserve
Postemployment
benefit
obligations Total
Opening value at January 1, 2024 54 83 137
Items that may be subsequently reclassified to profit or loss (net of
tax)
Currency translation differences (22) - (22)
Total other comprehensive income at June 30, 2024 32 83 115
Opening value at January 1, 2025 820 94 914
Items that may be subsequently reclassified to profit or loss (net of
tax)
Currency translation differences 230 - 230
Total other comprehensive income at June 30, 2025 1 050 94 1 144
17. Share-Based compensation
Equity-settled share-based payment transactions
As of June 30, 2025, the Company has four outstanding equity-settled share-based incentive plans, including (i) the 2021
warrants plan (the 2021 plan), (ii) the 2022 warrants plan (the 2022 plan), (iii) the 2024 warrants plan (the 2024 plan) and (iv)
the 2025 warrants plan (the 2025 plan).

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The changes of the year for the equity-settled warrant plans are as follows:
Number of shares (after share split) warrants give right to across all plans 2025 2024
Outstanding at January 1 2 258 319 1 635 606
Granted 658 374 385 250
Forfeited (37 377) (13 625)
Exercised (13 875) (24 275)
Expired (67 500) (35 975)
Outstanding as at June 30 2 797 941 1 946 981
Exercisable as at June 30 1 715 849 1 210 613
On February 1, 2024 and on April 21, 2024, respectively 300,250 and 85,000 warrants were granted from the 2022 plan. As of
June 30, 2024, a total number of 24,275 warrants have been exercised.
The following warrants were granted during 2025:
- On February 1, 2025, 329,431 warrants were granted from the 2024 plan (17,000 warrants were not accepted)
- On February 1, 2025, 223,943 warrants were granted from the 2025 plan (10,000 warrants were not accepted)
- On March 14, 2025, 45,000 warrants were granted from the 2025 plan
- On April 8, 2025, 30,000 warrants were granted from the 2025 plan
- On May 5, 2025, 30,000 warrants were granted from the 2025 plan
As of June 30, 2025, a total number of 13,875 warrants have been exercised. For 5,500 exercised warrants, the related shares
were not yet issued per June 30, 2025.
As of June 30, 2025, the remaining 30,000 warrants from the 2020 warrants plan expired as the expiration date of the 2020
plan was reached.
The following tables provide the input to the Black-Scholes model for warrants granted in 2020, 2021, 2022, 2023, 2024 and
2025 related to the 2020 warrant plan, the 2021 warrant plan, the 2022 warrant plan, the 2024 warrant plan and the 2025 warrant
plan. The tables and notes use as a basis, the number of shares the warrants give right to across all plans.
Plan 2020
(grant 2020)
Plan 2021
(grant Sept 17
2021)
Plan 2021
(grant Oct 27
2021)
Plan 2021
(grant Feb 21
2022)
Plan 2021
(grant Feb 21
2022)
Return Dividend 0% 0% 0% 0% 0%
Expected volatility 56.32% 51.30% 51.50% 49.80% 49.80%
Risk-free interest rate -0.20% -0.36% -0.18% 0.37% 0.37%
Expected life 3 3 3 3 3
Exercise price 11.94 25.31 25.31 17.76 25.31
Stock price 10.20 25.75 20.50 17.50 17.50
Fair value 3.31 9.22 5.94 6.05 4.15

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Plan 2021
(grant Feb 21
2022)
Plan 2021
(grant May
14 2022)
Plan 2021
(grant June 8
2022)
Plan 2021
(grant Aug 8
2022)
Plan 2021
(grant Aug 8
2022)
Return Dividend 0% 0% 0% 0% 0%
Expected volatility 49.80% 49.80% 52.60% 53.71% 53.97%
Risk-free interest rate 0.50% 1.06% 1.60% 1.39% 1.45%
Expected life 4 3 3 3 4
Exercise price 17.76 13.82 12.95 9.66 9.66
Stock price 17.50 13.82 13.34 9.75 9.75
Fair value 6.90 4.94 5.21 3.79 4.32
Plan 2021
(grant March
24 2023
Plan 2021
(grant April
12 2023)
Plan 2021
(grant June
14 2023)
Plan 2022
(grant June
14 2023)
Plan 2022
(grant Oct 20
2023)
Return Dividend 0% 0% 0% 0% 0%
Expected volatility 52.00% 52.00% 51.28% 51.28% 50.00%
Risk-free interest rate 3.20% 3.24% 3.36% 3.36% 3.55%
Expected life 3 3 3 3 3
Exercise price 5.42 6.36 7.19 7.19 5.92
Stock price 6.70 7.08 7.10 7.10 5.60
Fair value 3.09 3.04 2.75 2.75 2.07
Plan 2022
(grant Feb 01
2024)
Plan 2022
(grant Apr 21
2024)
Plan 2022
(grant Aug 2
2024)
Plan 2024
(grant Aug 2
2024)
Plan 2024
(grant Sep 18
2024)
Return Dividend 0% 0% 0% 0% 0%
Expected volatility 62.20% 65.50% 66.00% 66.00% 65.20%
Risk-free interest rate 2.63% 3.08% 2.55% 2.55% 2.38%
Expected life 3 3 3 3 3
Exercise price 5.24 9.04 7.88 7.88 7.20
Stock price 9.96 9.20 7.56 7.56 7.54
Fair value 6.26 4.40 3.47 3.47 3.60
Plan 2024
(grant Nov 25
2024)
Plan 2024
(grant Nov 25
2024)
Plan 2024
(grant Feb 1
2025)
Plan 2024
(grant Feb 1
2025)
Plan 2025
(grant Feb 1
2025)
Return Dividend 0% 0% 0% 0% 0%
Expected volatility 63.70% 63.70% 63.00% 63.00% 63.00%
Risk-free interest rate 2.24% 2.24% 2.26% 2.26% 2.26%
Expected life 3 3 3 3 3
Exercise price 7.69 8.04 9.63 10.15 10.15
Stock price 8.10 8.10 10.15 10.15 10.15
Fair value 3.80 3.70 4.76 4.61 4.61

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Plan 2025
(grant Mar 14
2025)
Plan 2025 (grant
Apr 8 2025)
Plan 2025 (grant
May 5 2025)
Return Dividend 0% 0% 0%
Expected volatility 63.00% 65.24% 64.97%
Risk-free interest rate 2.40% 2.11% 2.02%
Expected life 3 3 3
Exercise price 10.80 7.20 5.65
Stock price 10.80 5.76 5.65
Fair value 4.91 2.31 2.60
On March 24, 2023, the Company reduced the exercise price of 75% of the warrants previously granted to warrant holders
under the 2021 Warrants Plan to 5.42 EUR to reflect the decrease in the company’s share price. For the remaining 25% of the
warrants previously granted under the 2021 Warrants Plan, the exercise price will remain unchanged. All other terms and
conditions of the re-priced warrants remain unchanged to the original option agreement. The Company determined the fair
value of the options at the date of the modification (March 24, 2023). The incremental fair value of the re-priced warrants will
be recognised as an expense over the period from the modification date to the end of the vesting period. For the warrants already
vested at the date of modification, the incremental fair value is fully recognised as an expense at date of modification. The
expense for the original option grant will continue to be recognised as if the terms have not been modified.
The fair value of the modified warrants was determined using the same models and principles as described above, with the
following model inputs:
Plan 2021
(grant Sept 17
2021)
Plan 2021
(grant Oct 27
2021)
Plan 2021
(grant Feb 21
2022)
Plan 2021
(grant Feb 21
2022)
Return Dividend 0% 0% 0% 0%
Expected volatility 52.00% 52.00% 52.00% 52.00%
Risk-free interest rate 3.25% 3.25% 3.17% 3.36%
Expected life 2 2 2 2
Exercise price 5.42 5.42 5.42 5.42
Stock price 6.68 6.68 6.68 6.68
Fair value 2.48 2.52 2.67 2.49
Incremental Fair value 2.38 2.40 2.23 2.38
Plan 2021
(grant Feb 21
2022)
Plan 2021
(grant May 14
2022)
Plan 2021
(grant Aug 8
2022)
Plan 2021
(grant Aug 8
2022)
Return Dividend 0% 0% 0% 0%
Expected volatility 52.00% 52.00% 52.00% 52.00%
Risk-free interest rate 3.03% 3.13% 3.13% 2.98%
Expected life 3 2 3 4
Exercise price 5.42 5.42 5.42 5.42
Stock price 6.68 6.68 6.68 6.68
Fair value 3.05 2.75 2.87 3.21
Incremental Fair value 2.23 1.92 1.28 1.19

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18. Financial Debt
Financial debt mainly consists of recoverable cash advances, EIB finance agreement and synthetic warrants. The related
amounts can be summarized as follows:
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Recoverable cash advances - Non-current 9 139 8 623
Recoverable cash advances - Current 246 248
Total Recoverable cash advances 9 385 8 871
EIB finance agreement - Non-current 7 093 6 898
Synthetic warrants - Non-current 2 696 3 204
Total Other loan 9 789 10 102
Non-current 18 928 18 725
Current 246 248
Total Financial Debt 19 174 18 973
18.1. Financial debt related to recoverable cash advances
Recoverable cash advances received
As at June 30, 2025, the details of recoverable cash advances received can be summarized as follows:
(in EUR 000)
Contractual
advances
Advances
received
Fixed
reimbursemen
ts*
Variable
reimbursemen
ts*
Sleep apnea device (6472) 1 600 1 600 588 8
First articles (6839) 2 160 2 160 628 24
Clinical trial (6840) 2 400 2 400 510 13
Activation chip improvements (7388) 1 467 1 467 88 18
Total 7 627 7 627 1 814 63
* Excluding interests
During the six months ended June 30, 2025, the Company made no reimbursements and did not receive any new amounts.
Based on expected timing of sales and after discounting, the financial debt related to the recoverable cash advances is as
follows:
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Contract 6472 1 814 1 711
Contract 6839 2 467 2 332
Contract 6840 2 979 2 819
Contract 7388 2 125 2 009
Total recoverable cash advances 9 385 8 871
Non-current 9 139 8 623
Current 246 248
Total recoverable cash advances 9 385 8 871

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The amounts recorded under “Current” caption correspond to the sales-independent amounts (fixed repayment) and salesdependent reimbursements (variable repayment) estimated to be repaid to the Walloon Region in the next 12-month period.
The estimated sales-independent (fixed repayment) as well as sales-dependent reimbursements (variable repayment) beyond
12 months are recorded under “Non-current” liabilities.
Changes in the recoverable cash advances can be summarized as follows:
(in EUR 000) 2025 2024
As at January 1 8 871 8 674
Initial measurement and re-measurement ( 25) ( 18)
Discounting impact 539 519
As at June 30 9 385 9 175
A sensitivity analysis of the carrying amount of recoverable cash advances has been done to assess the impact of a change in
assumptions. The Company tested reasonable sensitivity to changes in revenue projections of +/- 25% and in the discount rates
of +/- 25%. The table hereunder details the sensitivity results:
Fair Value of Liabilities as of end of 2025 (in EUR 000) Variation of revenue projections
Variation of discount rates * -25% 0% 25%
-25% 9 786 10 152 10 400
0% 8 947 9 385 9 687
25% 8 213 8 705 9 049
* A change of -25% in the discount rates implies that the discount rate used for the fixed part of the recoverable cash
advances is 3.8% instead of 5% while the one used for the variable part is 9.4% instead of 12.5%.
An increase of 25% of revenue projections implies, if discount rates does not change, an increase of the expected liability as
repayment of the liability is accelerated.
An increase of 25% of the discount rate decreases the expected liability if revenue projections remain unchanged.
18.2. Financial debt related to loan facility agreement and synthetic warrants agreement
On July 3, 2024 the Company has signed a €37.5 million loan facility agreement with the European Investment Bank (“EIB”).
The agreement is backed by the European Commission’s InvestEU program. The Company plans to use the funding for research
and development, and for scaling-up its manufacturing capacity to meet demand in Europe and the U.S. The €37.5 million
facility is divided into three tranches: €10 million for the first tranche (“Tranche A”), €13.75 million for the second tranche
(“Tranche B”) and €13.75 million for the third tranche (“Tranche C”). Disbursement under the various tranches is subject to
certain conditions. Tranche A carries an annual 5% cash and 5% capitalized interest rate, and features a five-year bullet
repayment schedule. The various tranches do not contain revenue or liquidity covenants.
The first tranche A for an amount of €10 million, was disbursed on July 26, 2024.
In connection with the loan facility agreement, and as a condition to drawdown thereunder, the Company also entered into a
“synthetic warrant agreement” with the EIB. Under the synthetic warrant agreement, in consideration for the facility, in
connection with each tranche of the facility, the EIB will be granted “synthetic warrants” with a duration of 20 years. The
number and strike price of the synthetic warrants will be calculated based on tranche-specific formulas provided for in the
synthetic warrant agreement. The synthetic warrants can be exercised as of the maturity date of the relevant tranche of the
facility or, in exceptional situations, earlier. Such synthetic warrants will entitle the EIB to receive from the Company a cash
consideration equal to the 20-day volume weighted average price of a share in the Company on the stock exchange, reduced
by the applicable strike price per synthetic warrant, and multiplied by the number of synthetic warrants that the EIB exercises.
In connection with Tranche A, the EIB has been granted 468,384 synthetic warrants with a strike price of €8,54 that the EIB
can exercise after the maturity of Tranche A (5 years) or, in exceptional situations, earlier.

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Change in loan facility can be summarized as follows:
(in EUR 000) 2025 2024
As at January 1 6 898 −
Effective interest rate adjustment 195 −
As at June 30 7 093 −
Change in synthetic warrants can be summarized as follows:
(in EUR 000) 2025 2024
As at January 1 3 204 −
Fair value adjustment ( 508) −
As at June 30 2 696 −
Change in prepayment option can be summarized as follows:
(in EUR 000) 2025 2024
As at January 1 112 −
Fair value adjustment 58 −
As at June 30 170 −
19. Provisions
As at June 30 As at December 31
(in EUR 000) 2025 2024
Provision for constructive obligation 309 672
Other provisions 95 328
Total provisions 404 1 000
The Company has a constructive obligation related to the ongoing replenishment of certain consumable components, based on
business practices and customer expectations.
On May 30, 2025, the Company was sued in the U.S. District Court of Delaware by Inspire Medical, Inc. (“Inspire”) for the
alleged infringement of 3 Inspire patents (US Patent Nos: 10,898,709, 11,806,526, and 11,850,424). The complaint requests
customary remedies for patent infringement, including (i) a judgment that the Company has infringed and is infringing the
Inspire Patents, (ii) damages, (iii) attorneys’ fees, (iv) a permanent injunction preventing the Company from infringing the
Inspire Patents and (v) costs and expenses. The Company subsequently engaged a counsel to represent the Company in this
case. The Company intends to vigorously defend itself against the allegations brought forward in the Inspire complaint.
The Company expects to file a response to Inspire’s complaint by the August 25, 2025, agreed upon deadline.
Given the early stage of this litigation, the Company is unable to predict the likelihood of success of the Inspire claims
against the Company or to quantify any risk of loss. Therefore, the Company has not accrued for any potential litigation losses
as of June 30, 2025. Legal costs incurred in connection with this matter have been accrued through June 30, 2025, and are
recognized in the Research and Development Expense on the line item “Consulting and contractors fees”. The Company will
review the status of the litigation each quarter going forward for accrual purposes

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20. Trade payables
As at
(in EUR 000) June 30, 2025
December 31,
2024
Payables 4 437 3 749
Invoices to be received 4 971 5 756
Total Trade payables 9 408 9 505
The decrease in total trade payables of €97,000 as at June 30, 2025 is due to a decrease in invoices to be received of €0.8 million
which is partly compensated by an increase in trade payables of €0.7 million.
21. Income taxes and deferred taxes
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Current tax income/(expense) ( 275) (434) ( 407) ( 547)
Deferred tax income/(expense) (3) (7) 3 (4)
Total Income Tax Income/(Expense) (278) (441) ( 404) (551)
For the six months ended June 30, 2025, the current tax expense mainly relates to (i) an increase of income tax payable by
certain of the Company’s subsidiaries for an amount of €286,000 (2024: €172,000), and (ii) an additional accrual of the liability
for uncertain tax positions for an amount of €121,000 (2024: €243,000).
The uncertain tax position was recorded following certain public rulings and guidance issued by tax authorities in one of the
jurisdictions that the Company operates in. The current tax liability of €4.0 million mainly relates to a liability for uncertain
tax positions for an amount of €3.8 million.
22. Other liabilities
As at
(in EUR 000) June 30, 2025
December 31,
2024
Holiday pay accrual 774 903
Salary 2 583 3 354
Accrued expenses 963 511
Foreign currency swaps and forwards - current − 353
Other 1 451 1 103
Total other liabilities 5 771 6 224
The decrease by €453,000 in other liabilities as at June 30, 2025, is mainly due to a decrease by €0.9 million in payroll related
liabilities and a decrease by €353,000 in the fair value of the foreign currency swaps and forwards. We refer to note 23. The
decrease is partly offset by an increase of €452,000 in accrued expenses and an increase of €348,000 in Other.
As at June 30, 2025, Other mainly consists of an outstanding liability related to the continued development of the Company’s
strategic R&D project of which €0.9 million (2024: €0.9 million) is recorded as current other liability and €379,000 (2024:
€0.8 million) as non-current other liability.
23. Foreign currency swaps and forwards
The Company is exposed to currency risk primarily due to the expected future USD, AUD and NIS expenses that will be
incurred as part of the ongoing and planned marketing, clinical trials and other related expenses. A financial risk management
policy has been approved to i) generate yields on liquidity and ii) reduce the exposure to currency fluctuations with a timeline
up to 24 months and by means of foreign currency swaps and forwards. There have not been any transfers of level 3 categories
during the year.

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The Company has entered into several foreign currency swaps and forwards for which the notional amounts are detailed in the
table below:
As at
(in EUR 000)
June 30,
2025
December 31,
2024
Foreign currency swaps EUR - USD (in EUR) 3 500 5 000
Foreign currency swaps EUR - USD (in USD) 4 006 5 451
Foreign currency forwards EUR - USD (in EUR) 2 000 4 000
Foreign currency forwards EUR - USD (in USD) 2 111 4 277
Foreign currency swaps EUR - ILS (in EUR) 8 000 −
Foreign currency swaps EUR - ILS (in ILS) 1 953 −
Foreign currency forwards ILS - EUR (in ILS) 2 414 −
Foreign currency forwards ILS - EUR (in EUR) 10 000 −
Foreign currency swaps ILS - EUR (in ILS) 3 371 −
Foreign currency swaps ILS - EUR (in EUR) 14 000 −

The following table shows the carrying amount of derivative financial instruments measured at fair value in the statement of
the financial position including their levels in the fair value hierarchy:
As at June 30, 2025
(in EUR 000) Level I Level II Level III Total
Financial assets
Foreign currency swaps − 231 − 231
Foreign currency forwards − 262 − 262
The fair value is determined by the financial institution and is based on foreign currency swaps and forwards rates and the
maturity of the instrument. All foreign currency swaps are classified as current as their maturity date is within the next twelve
months.
The change in the balance of the financial assets is detailed as follows:
(in EUR 000) 2025 2024
Opening value at January 1 − 343
Fair value adjustments 493 (314)
Closing value at June 30 493 29

The change in the balance of the financial liabilities is detailed as follows:
(in EUR 000) 2025 2024
Opening value at January 1 353 90
Settled contracts (353) −
Fair value adjustments − (26)
Closing value at June 30 − 64
24. Results of operation
Revenue and cost of goods sold
In the six months ended June 30, 2025, the Company generated revenue for the amount of €2.4 million (2024: €2.0 million).
In the three months ended June 30, 2025, the Company generated revenue for the amount of €1.3 million (2024: €0.8 million).

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Revenue is recognized based on the satisfaction of performance obligations identified in customer contracts. Performance
obligations are satisfied when control of the Genio® system is transferred to the customer, either upon shipment or delivery,
depending on contractual terms. Prior to 2024, the Genio® system, delivered as a bundled kit, was treated as a single
performance obligation, recognized at a point in time. However, as from 2024 due to evolving commercial arrangements, the
Company has identified a separate performance obligation related to the replenishment of additional disposable patches beyond
the initial shipment. As a result, a portion of the transaction price is now allocated to these future deliveries, with revenue
deferred and recognized upon transfer of control.
The contract liability included in the consolidated balance sheet is related to revenue attributed to the additional replenishment
of disposable patches which is recognized when control of the patches is transferred to the customer or patient quarterly
following the patient implants. The current contract liability amounts to €460,000 while the non-current contract liability
amounts to €225,000. The revenue recognized in the six months ended June 30, 2025 that was included in the contract liability
balance at the beginning of the period amounts to €165,000.
For the six-month period ended June 30, 2025 the sales (based on country of customer) were generated in Germany
(€2.1 million), England (€268,000) and UAE (€32,000) (2024: Germany: €1.6 million, Switzerland: €306,000, Spain: €72,000
and Italy: €46,000). For the six-month period ended June 30, 2025, the Company has had two customers with individual sales
larger than 10% of the total revenue (2024: Two customers with individual sales larger than 10% of the total revenue).
For the three-month period ended June 30, 2025 the sales (based on country of customer) were generated in Germany
(€1.2 million) and England (€165,000) (2024: Germany: €0.7 million, Switzerland: €96,000 and Spain: €24,000).
Cost of goods sold for the three and six months ended June 30, 2025 and 2024:
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Purchases of goods and services (*) 843 1 961 1 512 2 518
Inventory movement ( 353) (1 680) ( 616) (1 783)
Total cost of goods sold 490 281 896 735
(*) Including purchases of raw material, direct labour allocation, indirect labour allocation, fees of subcontractors, warranty
and shipping cost (direct)
Operating expenses
The tables below detail the operating expenses for the six months ended June 30, 2025 and 2024:
(in EUR 000) Total cost Capitalized
Operating
expense for the
period
Research and development 20 602 (1 554) 19 048
Selling, general and administrative expenses 23 063 - 23 063
Other income/(expense) (171) 56 (115)
For the six months ended June 30, 2025 43 494 (1 498) 41 996
(in EUR 000) Total cost Capitalized
Operating
expense for the
period
Research and development 17 965 (3 294) 14 671
Selling, general and administrative expenses 12 355 - 12 355
Other income/(expense) (247) ( 2) ( 249)
For the six months ended June 30, 2024 30 073 (3 296) 26 777

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The tables below detail the operating expenses for the three months ended June 30, 2025 and 2024:
(in EUR 000) Total cost Capitalized
Operating
expense for the
period
Research and development 10 750 ( 691) 10 059
Selling, general and administrative expenses 10 672 - 10 672
Other income/(expense) (56) 25 (31)
For the three months ended June 30, 2025 21 366 ( 666) 20 700
(in EUR 000) Total cost Capitalized
Operating
expense for the
period
Research and development 8 604 (1 132) 7 472
Selling, general and administrative expenses 6 383 - 6 383
Other income/(expense) (53) ( 5) ( 58)
For the three months ended June 30, 2024 14 934 (1 137) 13 797
Research and Development expenses
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Staff costs 3 700 3 243 8 280 7 213
Consulting and contractors' fees 2 975 1 077 3 823 2 036
Q&A regulatory 43 140 119 243
IP costs 98 32 178 32
Depreciation and amortization expense 418 348 829 679
Travel 434 285 713 530
Manufacturing and outsourced development 1 292 750 2 600 2 513
Clinical studies 1 396 2 200 3 250 3 705
Other expenses 355 425 742 588
IT 39 104 68 426
Capitalized costs ( 691) (1 132) (1 554) (3 294)
Total research and development expenses 10 059 7 472 19 048 14 671
Before capitalization of €1.6 million for the six months ended June 30, 2025 and €3.3 million for the six months ended June
30, 2024, research and development expenses increased by €2.6 million or 14.7 %, from €18.0 million for the six months ended
June 30, 2024, to €20.6 million for the six months ended June 30, 2025, due to a combined effect of the higher R&D activities
and consulting fees, this increase was offset by a decrease in clinical study expenses. Additionally, IT costs decreased due to
the initiation of a new ERP implementation in 2023.
In May 2025, the Company became involved in an intellectual property litigation in the United States. For more information,
we refer to note 19 – Provisions.
Before capitalization of €0.7 million for the three months ended June 30, 2025 and €1.1 million for the three months ended
June 30, 2024, research and development expenses increased by €2.1 million or 24.9 %, from €8.6 million for the three months
ended June 30, 2024, to €10.8 million for the three months ended June 30, 2025, due to an increase of R&D activities, higher
consulting fees and higher manufacturing expenses; this increase was offset by a decrease of the clinical study expenses.

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Selling, General and Administrative expenses
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Staff costs 6 326 2 293 13 270 4 876
Consulting and contractors' fees 2 639 2 659 5 845 4 223
Legal fees 217 105 479 582
Rent 124 179 230 344
Depreciation and amortization expense 356 311 719 589
IT 587 213 1 045 586
Travel 410 414 1 168 598
Insurance fees 108 139 221 261
Other ( 95) 70 86 296
Total selling, general and administrative expenses 10 672 6 383 23 063 12 355
Selling, general and administrative expenses increased by €10.7 million or 86.7 % from €12.4 million for the six months ended
June 30, 2024 to €23.1 million for the six months ended June 30, 2025, mainly due to an increase of costs to support the
commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the
Genio® system in the U.S. following receipt of FDA approval. Consulting and contractor fees also includes a provision for an
amount of €390,000 recognized under IAS 37 for the estimated future costs related to the replenishment of certain consumable
components, reflecting a constructive obligation arising from business practices.
Selling, general and administrative expenses increased by €4.3 million or 67.2 % from €6.4 million for the three months ended
June 30, 2024 to €10.7 million for the three months ended June 30, 2025, mainly due to an increase of costs to support the
commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the
Genio® system in the U.S. following receipt of FDA approval.
Other operating income / (expenses)
The Company had other operating income of €115,000 for the six months ended June 30, 2025 compared to other operating
income of €249,000 for the six months ended June 30, 2024.
The Company had other operating income of €31,000 for the three months ended June 30, 2025 compared to other operating
income of €58,000 for the three months ended June 30, 2024.
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Recoverable cash advances
Initial measurement and re-measurement 7 5 25 18
R&D incentives 49 137 110 251
Capitalization of R&D incentive (25) (84) (56) (20)
Other income/(expenses) − − 36 −
Total Other Operating Income/(Expenses) 31 58 115 249
The other operating income for the six-month period ended June 30, 2025, contains the R&D incentive in Australia and
Belgium. The incentives to be received relate to development expenses incurred by the subsidiary in Australia and Belgium.
For the six-month period ended June 30, 2025, €56,000 has been deducted from the expenses capitalized in relation to this
R&D incentive. The R&D incentive and capitalization of R&D incentive for the six-month period ended June 30, 2024 also
includes a correction of the R&D incentive in Belgium on the investments of 2023 for an amount of €93,000.

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25. Employee benefits
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Salaries 8 073 4 226 16 418 8 958
Social charges 758 459 1 619 1 091
Pension charges 128 164 299 220
Share-based payment 887 540 2 862 1 499
Other 180 147 352 321
Total employee benefits 10 026 5 536 21 550 12 089
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Selling, general and administrative expenses 6 326 2 293 13 270 4 876
Research & Development expenses 3 700 3 243 8 280 7 213
Total employee benefits 10 026 5 536 21 550 12 089
We refer to note 24 for more details on the increase in total employee benefits.
26. Financial income
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Interests 513 472 1 458 970
Exchange differences 2 164 1 593 2 951 2 498
Fair value adjustment foreign currency swaps and
forwards 219 − 493 −
Fair value adjustment synthetic warrants ( 43) − 508 −
Fair value adjustment prepayment option ( 1) − 58 −
Other 6 4 12 9
Total financial income 2 858 2 069 5 480 3 477
The financial income increased from €3.5 million for the six-month period ended June 30, 2024 to €5.5 million for the sixmonth period ended June 30, 2025. This increase can mainly be explained by the fair value adjustments on foreign currency
swaps and forwards and on synthetic warrants. In addition, there was also an increase in interest income.
For the six-month period ended June 30, 2025, exchange gains amount to €3.0 million (three-month period ended June 30,
2025: €2.2 million), mainly driven by the monthly revaluation on balance sheet items and realized exchange gains on currency
swaps and forwards and USD financial assets (note 15).
For the six-month period ended June 30, 2025, total interest income amounted to €1.5 million (three month period ended June
30, 2025: €0.5 million). This interest income relates to the term accounts.
More information on the fair value adjustment foreign currency swaps and forwards can be found in note 23.
The fair value adjustments of synthetic warrants and prepayment option are related to the EIB loan facility agreement. More
information can be found in note 18.

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27. Financial expense
For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Fair value adjustment foreign currency swaps and forwards − ( 24) − 288
Recoverable cash advances, Accretion of interest 269 259 539 519
Interest and bank charges 373 57 761 120
Interest on lease liabilities 35 36 71 74
Exchange differences 2 772 1 115 6 141 1 435
Other ( 112) 2 67 −
Total financial expense 3 337 1 445 7 579 2 436
The financial expenses increased from €2.4 million for the six-month period ended June 30, 2024 to €7.6 million for the sixmonth period ended June 30, 2025 mainly due to an increase in exchange differences.
The exchange losses amounting to €6.1 million for the six-month period ended June 30, 2025 mainly relate to the revaluation
of both the Company’s USD cash balance and USD financial assets:
Nyxoah holds both EUR and USD balances, each used to settle expenses in their respective currencies.
While Nyxoah does hedge a few transactions using swap contracts, the Company does not apply hedge accounting. The swap
instruments are short-term and mainly used to manage transactional exposures in GBP, ILS, and CHF. Although GBP sales are
expected to cover GBP costs going forward, some contracts have been used to address short-term needs. In addition, a few
swaps were used to neutralize the currency impact of our USD-denominated T-bills, which were purchased using EUR balances
for convenience, in line with the portfolio allocation approved by the board.
The main contributor to the currency loss is explained by the fact that Nyxoah consolidates in EUR, but the majority of the
cash is held in USD to cover future USD expenses. As a result, the recent appreciation of the euro, approximately 12.81%
between January 1 and June 30, 2025, has led to a significant unrealized FX loss upon translation of USD cash during
consolidation.
More information on the fair value adjustment foreign currency swaps and forwards can be found in note 23.
The discounting impact of the recoverable cash advances is further detailed in note 18 above.
The increase in interest and bank charges for the three month period ended June 30, 2025 can be explained by the interest
charge on the EIB financial debt.
28. Earnings/(Loss) Per Share (EPS)
The Basic Earnings Per Share and the Diluted Earnings Per Share are calculated by dividing earnings for the year by the
weighted average number of shares outstanding during the year. As the Company is incurring net losses, outstanding warrants
have no dilutive effect. As such, there is no difference between the Basic and Diluted EPS.
EPS for June 2025 has been presented in the income statement taking into account resolutions adopted by the shareholders’
meeting of February 21, 2020. All existing preferred shares were converted into common shares, and then a share split of
500:1 was approved by the shareholders’ meeting.

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For the three months ended
June 30
For the six months ended
June 30
2025 2024 2025 2024
As at June 30, after conversion and share split
Outstanding common shares at period-end 37 435 640 34 373 015 37 435 640 34 373 015
Weighted average number of common shares
outstanding 37 431 255 30 744 220 37 429 260 29 706 019
Number of shares resulting of the exercise of
outstanding warrants 2 797 941 1 946 981 2 797 941 1 946 981
Basic and Diluted EPS for the three and six-month period ended June 30, 2025 and 2024 based on weighted average number
of shares outstanding after conversion and share split are as follows:
For the three months ended
June 30
For the six months ended
June 30
2025 2024 2025 2024
Loss of year attributable to equity holders (in EUR) (20 607 000) (13 124 000) (42 991 000) (25 030 000)
Weighted average number of common shares
outstanding (in units) 37 431 255 30 744 220 37 429 260 29 706 019
Basic earnings per share in EUR (EUR/unit) (0.551) (0.428) (1.149) (0.843)
Diluted earnings per share in EUR (EUR/unit) (0.551) (0.428) (1.149) (0.843)
29. Other commitments
On June 27, 2025, the Company entered into an agreement with a key supplier to make a progress payment of USD 1,150,000
related to manufacturing services and inventory purchases. Although the payment was made in July 2025, the Company had
committed to the prepayment as of June 30, 2025, in accordance with the agreement terms.
30. Related Party Transactions
Transactions between the Company and its subsidiaries have been eliminated in consolidation and are not disclosed in the
notes. Related party transactions are disclosed below.
30.1. Remuneration of Key Management
Key management consists of the members of executive management.
For the period ended June 30, 2025, executive management consisted of the Chief Executive Officer (CEO), the Chief Financial
Officer (CFO), the Chief Commercial Officer (CCO) and the Chief Technology Officer (CTO) of the Company. For the period
ended June 30, 2025, the table below includes the remuneration package of all members of executive management.
For the period ended June 30, 2024, executive management consisted of the Chief Executive Officer (CEO), the Chief Financial
Officer (CFO) and the Chief Technology Officer (CTO) of the Company. For the period ended June 30, 2024, the table below
includes the remuneration package of all members of executive management.

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For the three months ended
June 30
For the six months ended
June 30
(in EUR 000) 2025 2024 2025 2024
Short-term remuneration & compensation
(1) 751 480 1 425 951
Post-employment benefits 14 6 35 11
Share based payment (2) 229 97 554 329
Total 994 583 2 014 1 291
(1) Includes base remuneration, fringe benefits, short term (one-year) performance related bonus (i.e. variable remuneration),
sign-on bonuses.
(2) Warrant expense under IFRS 2.
30.2. Relationship and transactions with non-executive directors and holders of more than 3% of our share capital:
For the six months ended
June 30, 2025
For the six months ended
June 30, 2024
(in EUR 000)
Set up of
Production
Line
Board
Remuneration
Set up of
Production
line
Board
Remuneration
Cochlear 52 − 176 −
Robert Taub (until June 12, 2024)/Robelga SRL (since
June 12, 2024) − 59 − 60
Kevin Rakin − 32 − 32
Pierre Gianello − 27 − 45
Jurgen Hambrecht − 32 − 33
Rita Mills − 39 − 35
Giny Kirby − 25 − 33
Wildman Ventures LLC − 38 − 52
Total 52 252 176 290
Amounts outstanding at period-end − 110 − 110
For the three months
ended
June 30, 2025
For the three months
ended
June 30, 2024
(in EUR 000)
Set up of
Production
Line
Board
Remuneration
Set up of
Production
line
Board
Remuneration
Cochlear − − − −
Robert Taub (until June 12, 2024)/Robelga SRL (since
June 12, 2024) − 31 − 29
Kevin Rakin − 16 − 16
Pierre Gianello − 13 − 28
Jurgen Hambrecht − 16 − 18
Rita Mills − 19 − 15
Giny Kirby − 13 − 12
Wildman Ventures LLC − 14 − 29
Total − 122 − 147
Amounts outstanding at period-end − 110 − 110
For the period ended June 30, 2025, our non-executive directors were: Robert Taub (until June 12, 2024), Robelga SRL
(permanently represented by Robert Taub) (as from June 12, 2024), Jürgen Hambrecht, Kevin Rakin, Rita Johnson-Mills,
Virigina Kirby, Wildman Ventures, LLC (permanently represented by Daniel Wildman) and Pierre Gianello.

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36
The warrant expense under IFRS 2 related to the warrants that were granted to the non-executive directors amounted to €0.8
million for the period ended June 30, 2025, (€218,000 for the period ended June 30, 2024).
The Company and Cochlear Limited, or Cochlear, have entered into a collaboration agreement, dated January 2023, related to
the transfer of assets and related support for the setting up of a production line in the U.S. This statement scope of work led to
a financial impact of €52,000 for the six months ended June 30, 2025 and impact of €176,000 for six months ended June 30,
2024 and was recognized as part of assets under construction.
On September 28, 2023, the Company announced a partnership with ResMed in Germany to increase OSA awareness and
therapy penetration in the German market. The Company and ResMed Germany will establish a continuum of care that will
educate and guide OSA patients in the German market from diagnosis through treatment. Together, the companies will work
to accelerate patient identification and better support patient set-up on the appropriate therapy.
Effective October 1, 2024, the Company entered into a collaboration agreement with Man & Science SA to develop a
miniaturized injectable neuromodulation device. The Company retains exclusive rights for its use in treating obstructive sleep
apnea.
30.3. Relationship and transactions with members of key management
For the period ended June 30, 2025, our key management consisted of the members of executive management: Olivier Taelman
(CEO), John Landry (CFO), Scott Holstine (CCO) and Bruno Onkelinx (CTO).
For the period ended June 30, 2024, our key management consisted of the members of executive management: Olivier Taelman
(CEO), Loic Moreau (CFO), and Bruno Onkelinx (CTO).
From September 1, 2021 until August 19, 2024, Olivier Taelman performed his function as CEO of the Company on a selfemployed basis in accordance with a service agreement between Nyxoah SA and Olivier Taelman. As from August 19, 2024,
Olivier Taelman temporarily relocated to the U.S. Since then, he performs his function as CEO of the Company partially on a
self-employed basis in accordance with a service agreement between Nyxoah SA and Olivier Taelman and partially as an
employee of Nyxoah Inc.
Loïc Moreau and Bruno Onkelinx are employees of Nyxoah SA. John Landry and Scott Holstine are employees of Nyxoah
Inc.
Members of our key management were granted warrants during the period ended June 30, 2025 and June 30, 2024.
31. Events after the Balance-Sheet Date
In July 2025, the Company reorganized its global R&D function and expects to transition all ongoing R&D activities from
Israel to the U.S. and Belgium. This organizational change was considered a potential indicator of impairment; however, based
on the impairment assessment performed, no impairment was identified.
On August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial launch
in the United States. This confirms the Company's transition into a full commercial stage company which is expected to have
a positive impact on the Company’s revenue beginning in the second half of 2025.

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37
RESPONSIBILITY STATEMENT
We certify that, to the best of our knowledge,
a) the condensed consolidated interim financial statement, prepared in accordance with the applicable standards for
financial statements, give a true and fair view of the assets, liabilities, financial position and results of the Company
and the undertakings included in the consolidation taken as a whole; and
b) this interim management report provides a true and fair overview of the development, results and the position of the
Company and the undertakings included in the consolidation taken as a whole, as well as a description of the principal
risks and uncertainties that they face.
Mont-Saint-Guibert, August 18, 2025.
On behalf of the board of directors
Robelga SRL Olivier Taelman
(permanently represented by Robert Taub) CEO
Chairman

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Nyxoah Interim Financial Report: First Half 2025

1. INTERIM FINANCIAL REPORT FIRST HALF 2025 TABLE OF CONTENTS Interim financial report............................................................................................................................................................... 3 1. BUSINESS UPDATE ................................................................................................................................................ 3 2. FINANCIAL HIGHLIGHTS ..................................................................................................................................... 4 3. 2025 OUTLOOK........................................................................................................................................................ 5 4. RISK FACTORS........................................................................................................................................................ 5 5. FORWARD-LOOKING STATEMENTS.................................................................................................................. 5 Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 – Interim consolidated statement of financial position............................................................................................................................... 7 Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 - Interim consolidated statements of loss and other comprehensive loss................................................................................................... 8 Unaudited condensed consolidated interim financial information as at and for the six months ended, June 30 2025 - Interim consolidated statements of changes in equity............................................................................................................................. 9 Unaudited condensed consolidated interim financial information as at and for the six months ended June 30, 2025 – Interim consolidated statements of cash flows...................................................................................................................................... 10 Notes to the unaudited condensed interim consolidated financial information ........................................................................ 11 1. General information.................................................................................................................................................. 11 2. Material accounting policies..................................................................................................................................... 11 3. Critical accounting estimates and assumptions......................................................................................................... 12 4. Segment reporting .................................................................................................................................................... 13 5. Fair Value................................................................................................................................................................. 13 6. Subsidiaries .............................................................................................................................................................. 14 7. Property, Plant and Equipment................................................................................................................................. 14 8. Intangible assets ....................................................................................................................................................... 15 9. Right of use assets and lease liabilities..................................................................................................................... 15 10. Other long-term receivables ..................................................................................................................................... 15 11. Inventory .................................................................................................................................................................. 16 12. Trade receivables, Contract assets and Other receivables......................................................................................... 16 13. Other current assets.................................................................................................................................................. 17 14. Cash and cash equivalents........................................................................................................................................ 17 15. Financial assets......................................................................................................................................................... 17 16. Share Capital, Share Premium, Reserves.................................................................................................................. 17 17. Share-Based compensation....................................................................................................................................... 19 18. Financial Debt .......................................................................................................................................................... 24 19. Provisions................................................................................................................................................................. 26 20. Trade payables.......................................................................................................................................................... 27 21. Income taxes and deferred taxes............................................................................................................................... 27 22. Other liabilities......................................................................................................................................................... 27 23. Foreign currency swaps and forwards...................................................................................................................... 27

2. 2 24. Results of operation.................................................................................................................................................. 28 25. Employee benefits.................................................................................................................................................... 32 26. Financial income ...................................................................................................................................................... 32 27. Financial expense ..................................................................................................................................................... 33 28. Earnings/(Loss) Per Share (EPS).............................................................................................................................. 33 29. Other commitments.................................................................................................................................................. 34 30. Related Party Transactions....................................................................................................................................... 34 31. Events after the Balance-Sheet Date......................................................................................................................... 36 Responsibility statement .......................................................................................................................................................... 37

3. 3 INTERIM FINANCIAL REPORT FIRST HALF 2025 1. BUSINESS UPDATE A. CLINICAL UPDATE DREAM US: IDE PIVOTAL STUDY Nyxoah initiated its pivotal DREAM IDE trial in the United States in December 2020 to support an application seeking FDA marketing authorization and, ultimately, reimbursement in the U.S. for bilateral hypoglossal nerve stimulation for the treatment of moderate-to-severe obstructive sleep apnea (“OSA”). The DREAM trial is a multicenter, prospective, open-label trial in which patients who undergo implantation of the Genio® system will be followed for five years post-implantation to assess the safety and efficacy of the Genio® system in patients with moderate-to-severe OSA. The trial was initially expected to enroll 134 patients who will undergo the implantation procedure with 12-month effectiveness and safety primary endpoints across 18 centers in the United States and six international sites. In April 2022, the FDA approved the Company’s request to reduce the trial’s sample size to 115 patients from 134 after reviewing data from the BETTER SLEEP trial (see below). The primary safety endpoint is incidence of device-related severe adverse events ("SAEs") at 12-months post implantation. The co-primary effectiveness endpoints are the percentage of responders with at least a 50% reduction on the apnea-hypopnea index ("AHI") with hypopneas associated with a 4% oxyhemoglobin desaturation and a remaining AHI with hypopneas associated with a 4% oxyhemoglobin desaturation less than 20, and a 25% reduction on the oxygen desaturation index ("ODI") between baseline and 12-month visits. Patients with moderate to severe OSA (AHI score between 15 and 65) and aged between 22 and 75 years are eligible for enrolment if they failed, did not tolerate or refused positive airway pressure ("PAP") treatment. Patients with a body mass index above 32 kg/m2, a complete concentric collapse ("CCC") observed during a drug induced sleep endoscopy and combined central and mixed AHI above 25% at baseline polysomnography are to be excluded. On March 19, 2024, the Company reported the DREAM study met its primary endpoints on an intent-to-treat (ITT) basis, with an Apnea-Hypopnea Index (AHI) responder rate of 63.5% (p=0.002) and an Oxygen Desaturation Index (ODI) responder rate of 71.3% (p<0.001). Additionally, the study demonstrated a median 12-month AHI reduction of 70.8%. There were 11 serious adverse events, or SAEs, in ten subjects resulting in an SAE rate of 8.7%. Out of the 11 SAEs, three were device-related and there were three explants. The Company filed the fourth and final module of the modular premarket approval (PMA) application at the end of the second quarter 2024. On August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial launch in the United States. BETTER SLEEP: ACHIEVED PRIMARY ENDPOINT IN BOTH CCC AND NON-CCC PATIENT COHORTS In March 2022, the Company attended the World Sleep Congress in Rome, Italy, and presented data generated from its BETTER SLEEP trial, a multicenter, prospective, open-label, two-group clinical trial, designed to assess the long-term safety and performance of the Genio® system for the treatment of adult OSA patients with and without CCC of the soft palate over a period of 36 months post-implantation. The BETTER SLEEP trial included a subgroup of CCC patients, which is a patient population that is contraindicated for unilateral hypoglossal nerve stimulation. In the BETTER SLEEP trial, 42 patients were implanted with the Genio® system, 18 of whom presented with CCC (or 42.9% of the total implanted population) at eight research centers in Australia. The primary safety endpoint was the incidence of device-related SAEs six months post-implantation. The primary performance endpoint was achieving at least a 4-point reduction in the apnea-hypopnea index (4% oxygen desaturation, or AHI4) from baseline at six months for the entire patient cohort. Patients with moderate to severe AHI scores (15 < AHI < 65) and aged between 21 and 75 years were eligible for enrollment if they failed, refused or did not tolerate PAP treatment. Patients with a body mass index above 32 kg/m2 were excluded. Three patients in the non-CCC arm and three patients in the CCC arm did not complete their six-month polysomnography, and as a result, the analysis was calculated based on 36 patients (21 non-CCC and 15 CCC). Of these 36 patients, there were 23 responders (64%), including nine of the 15 CCC patients (60%) and 14 of the 21 non-CCC patients (67%), at six months. The overall reduction was statistically significant with an 11-point reduction (p<0.001), with statistically significant reductions of 10 points (p=0.001) in the CCC cohort and 11 points (p<0.001) in the non-CCC cohort. In addition, mean AHI4 reduction exceeded 70% among responders in both CCC and non-CCC cohorts. These results are subject to final review and validation.

4. 4 With respect to the primary safety endpoint, preliminary unadjudicated safety data showed four SAEs in three patients during the six-month post-implantation period. Of those, two SAEs in one patient were reported as device related, one SAE in one patient was reported as procedure and device related, and one SAE in one patient was reported as unrelated to procedure or device. Final review and adjudication of SAEs and adverse events ("AEs") have not yet been completed by an independent clinical events committee and as a result the characterization of SAEs or AEs could be subject to change. While additional data, including responder rates, remains subject to ongoing review and continues to be analyzed, the Company observed in the per protocol group a 70% responder rate in the non-CCC patient subgroup based on the Sher criteria. The per protocol group consisted of 35 patients and excluded five patients from the mITT analysis population: two of these patients were lost to follow-up, one patient did not comply with the study protocol, and two patients were removed from the study by the investigator, one for hostility towards staff and one having returned to continuous positive airway pressure, therapy. The Company expects to announce additional data with respect to the trial as further analyses are conducted and seeks to publish the full data set from the trial in a peer-reviewed publication. There will be no additional enrollment in the BETTER SLEEP trial. However, the Company will continue to monitor patients in the evaluable patient population and plan to continue evaluating over the course of three years following implantation. The data generated from this study were used to expand the Company’s CE mark for the Genio® system to treat patients demonstrating CCC at the soft palate level, and the first commercial Genio® implants occurred in CCC patients in Germany during the first quarter of 2022. ACCCESS U.S. IDE STUDY SEEKING APPROVAL TO TREAT CCC PATIENTS In the United States, supported by the BETTER SLEEP study data, the FDA in September 2021 granted Breakthrough Device Designation for the Genio® system in order to shorten the approval path to treat CCC patients. Following a series of sprint discussions with the FDA regarding the design of a trial called ACCCESS to assess the safety and efficacy of the Genio® system on CCC patients, the FDA approved the Company’s IDE application in July 2022. In this study, Nyxoah will implant up to 106 patients across up to 40 implant sites with co-primary efficacy endpoints of AHI responder rate, per the Sher criteria, and ODI responder rate, both assessed at 12 months post-implant. The clinical sites are being activated and the study is enrolling. B. EUROPEAN COMMERCIALIZATION During the second quarter and first half of 2025, Nyxoah recognized total revenue of €1.3 million and €2.4 million respectively, supported by the German commercial organization with a total of 14 full-time employees as of June 30 2025 (as of December 31 2024: 14 full time employees). Nyxoah’s commercial strategy is focused on creating a Center of Excellence ecosystem, with a high level of clinical expertise between implanting ENT surgeons and sleep physicians who can provide more treatment options to their large patient pools. The Company has also focused on entering new international markets: • In Q4 2024, the Company entered the SSDP (Specialised Services Devices Program) with the NHS in the UK and generated its first revenue that same quarter; • In Q1 2025, the Company initiated commercialization in the Middle East region through a distributor agreement and generated its first revenue in Dubai that same quarter. In Q2 2025, the Company generated its first revenue in Kuwait and Abu Dhabi; and • Nyxoah has also generated revenue in Austria, Spain and Italy and the Company expects to expand into other European countries and Middle East markets, pending feedback on submitted reimbursement dossiers. 2. FINANCIAL HIGHLIGHTS Revenue was €2.4 million for the six months ended June 30, 2025, compared to €2.0 million for the six months ended June 30, 2024. Cost of goods sold was €0.9 million for the six months ended June 30, 2025, compared to €0.7 million for the six months ended June 30, 2024. Selling, general and administrative expenses increased by €10.7 million or 86.7 % from €12.4 million for the six months ended June 30, 2024 to €23.1 million for the six months ended June 30, 2025, due to an increase in costs to support the

5. 5 commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the Genio® system in the U.S. following receipt of FDA approval. Before capitalization of €1.6 million for the six months ended June 30, 2025 and €3.3 million for the six months ended June 30, 2024, research and development expenses increased by €2.6 million or 14.7 %, from €18.0 million for the six months ended June 30, 2024, to €20.6 million for the six months ended June 30, 2025. This increase was mainly due to the combined effect of higher R&D activities and consulting fees. This increase was offset by a decrease in clinical study expenses. Additionally, IT costs decreased due to the initiation of a new ERP implementation in 2023 (we refer to the HY report 2024, note 22 – Results of operation – Research and development expenses). Nyxoah realized a net negative financial result of €2.1 million for the six months ended June 30, 2025 primarily driven by the exchange rate depreciation of the U.S. dollar versus the Euro and interest expense on the term loan entered into in July 2024. This compares to a net positive financial result of €1.0 million for the six months ended June 30, 2024. Nyxoah realized a net loss of €43.0 million for the six months ended June 30, 2025, compared to a net loss of €25.0 million for the six months ended June 30, 2024. Cash and cash equivalents On June 30, 2025, cash and cash equivalents and financial assets totaled €43.0 million, compared to €85.6 million on December 31, 2024. The decrease in financial assets is due to the use of proceeds from the sale of term deposits to support operating activities. 3. 2025 OUTLOOK The Company expects to continue ramping up sales in Germany as well as in other European countries where we are already present and in select European and Middle East markets, subject to the receipt of favorable reimbursement for the Company’s product in those markets. In the U.S., on August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial launch in the United States. 4. RISK FACTORS We refer to the description of risk factors in the Company's 2024 annual report, pp. 76-98. In summary, the principal risks and uncertainties faced by us relate to our financial situation and need for additional capital, clinical development of our product candidates, commercialization and reimbursement of our product candidates, our dependence on third parties and on key personnel, the markets and countries in which we operate, the manufacturing of our product candidates, legal and regulatory compliance matters, our intellectual property (including the outcome of any ongoing IP litigation), our organization and operations. 5. FORWARD-LOOKING STATEMENTS This interim management report contains forward-looking statements. All statements other than present and historical facts and conditions contained in this report, including statements regarding our future results of operations and financial position, business strategy, plans and our objectives for future operations, are forward-looking statements. When used in this report, the words “anticipate,” “believe,” “can,” “could,” “estimate,” “expect,” “intend,” “is designed to,” “may,” “might,” “plan,” “potential,” “predict,” “objective,” “should,” or the negative of these and similar expressions identify forward-looking statements. By their nature, forward-looking statements involve risks and uncertainties, and readers are cautioned that any such forward-looking statements are not guarantees of future performance. Nyxoah’s actual results may differ materially from those predicted by the forward-looking statements as a result of various important factors, including Nyxoah’s expectations regarding the inherent uncertainties associated with competitive developments, clinical trial and product development activities, regulatory approval requirements and FDA approval timelines; Nyxoah’s reliance on collaborations with third parties; estimating the commercial potential of Nyxoah’s product candidates; Nyxoah’s ability to obtain and maintain protection of intellectual property for its technologies; Nyxoah’s limited operating history; and Nyxoah’s ability to obtain additional funding for operations and to complete the development and commercialization of its product candidates. A further list and description of these risks, uncertainties and other risks can be found in Nyxoah’s 2024 annual report. Given these uncertainties, the reader is advised not to place any undue reliance on such forward-looking statements. These forward-looking statements speak only as at the date of publication of this document. Nyxoah expressly disclaims any obligation to update any such forward-looking statements in this document, to reflect any change in our expectations with regard thereto or any change in events, conditions

6. 6 or circumstances on which any such statement is based or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements, unless specifically required by applicable law or regulation.

7. 7 NYXOAH SA UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND FOR THE SIX MONTHS ENDED JUNE 30, 2025 – INTERIM CONSOLIDATED STATEMENT OF FINANCIAL POSITION (unaudited) (in thousands) As at Notes June 30 2025 December 31 2024 ASSETS Non-current assets Property, plant and equipment 7 5 015 4 753 Intangible assets 8 51 407 50 381 Right of use assets 9 3 059 3 496 Deferred tax asset 76 76 Other long-term receivables 10 1 799 1 617 € 61 356 € 60 323 Current assets Inventory 11 5 332 4 716 Trade receivables 12 1 330 3 382 Contract assets 12 1 508 − Other receivables 12 3 014 2 774 Other current assets 13 944 1 656 Financial assets 15 20 257 51 369 Cash and cash equivalents 14 22 729 34 186 € 55 114 € 98 083 Total assets € 116 470 € 158 406 EQUITY AND LIABILITIES Share capital and reserves Share capital 16 6 431 6 430 Share premium 16 314 388 314 345 Share based payment reserve 17 11 645 9 300 Other comprehensive income 16 1 144 914 Retained loss (260 211) (217 735) Total equity attributable to shareholders € 73 397 € 113 254 LIABILITIES Non-current liabilities Financial debt 18 18 928 18 725 Lease liability 9 2 157 2 562 Provisions 19 404 1 000 Deferred tax liability 34 19 Contract liability 24 225 472 Other liability 22 379 845 € 22 127 € 23 623 Current liabilities Financial debt 18 246 248 Lease liability 9 1 071 1 118 Trade payables 20 9 408 9 505 Current tax liability 21 3 990 4 317 Contract liability 24 460 117 Other liability 22 5 771 6 224 € 20 946 € 21 529 Total liabilities € 43 073 € 45 152 Total equity and liabilities € 116 470 € 158 406 The accompanying notes are an integral part of these condensed consolidated interim financial statements.

8. 8 NYXOAH SA UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND FOR THE SIX MONTHS ENDED JUNE 30, 2025 - INTERIM CONSOLIDATED STATEMENTS OF LOSS AND OTHER COMPREHENSIVE LOSS (unaudited) (in thousands) For the three months ended June 30 For the six months ended June 30 Notes 2025 2024 2025 2024 Revenue 24 1 340 771 2 404 1 992 Cost of goods sold 24 ( 490) ( 281) ( 896) ( 735) Gross profit € 850 € 490 € 1 508 € 1 257 Research and Development Expense 24 (10 059) (7 472) (19 048) (14 671) Selling, General and Administrative Expense 24 (10 672) (6 383) (23 063) (12 355) Other income 31 58 115 249 Operating loss for the period € (19 850) € (13 307) € (40 488) € (25 520) Financial income 26 2 858 2 069 5 480 3 477 Financial expense 27 (3 337) (1 445) (7 579) (2 436) Loss for the period before taxes € (20 329) € (12 683) € (42 587) € (24 479) Income taxes 21 ( 278) ( 441) ( 404) ( 551) Loss for the period € (20 607) € (13 124) € (42 991) € (25 030) Loss attributable to equity holders € (20 607) € (13 124) € (42 991) € (25 030) Other comprehensive loss Items that may be subsequently reclassified to profit or loss (net of tax) Currency translation differences 232 ( 82) 230 ( 22) Total comprehensive loss for the year, net of tax € (20 375) € (13 206) € (42 761) € (25 052) Loss attributable to equity holders € (20 375) € (13 206) € (42 761) € (25 052) Basic Loss Per Share (in EUR) 28 € (0.551) € (0.428) € (1.149) € (0.843) Diluted Loss Per Share (in EUR) 28 € (0.551) € (0.428) € (1.149) € (0.843) The accompanying notes are an integral part of these condensed consolidated interim financial statements

9. 9 NYXOAH SA UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND FOR THE SIX MONTHS ENDED, JUNE 30 2025 - INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (unaudited) (in thousands) Attributable to owners of the parent Common shares Share premium Share based payment reserve Other comprehe nsive income Retained loss Total Balance at January 1, 2025 € 6 430 € 314 345 € 9 300 € 914 € (217 735) € 113 254 Loss for the period − − − − (42 991) (42 991) Other comprehensive income for the period − − − 230 − 230 Total comprehensive income/(loss) for the period - - - € 230 € (42 991) € (42 761) Equity-settled share-based payments Granted during the period − − 2 860 − − 2 860 Expired during the period − − ( 466) − 466 − Exercised during the period 1 43 ( 49) − 49 44 Total transactions with owners of the company recognized directly in equity 1 43 2 345 − 515 2 904 Balance at June 30, 2025 € 6 431 € 314 388 € 11 645 € 1 144 € (260 211) € 73 397 Attributable to owners of the parent Common shares Share premium Share based payment reserve Other comprehe nsive income Retained loss Total Balance at January 1, 2024 € 4 926 € 246 127 € 7 661 € 137 € (160 829) € 98 022 Loss for the period − − − − (25 030) (25 030) Other comprehensive loss for the period − − − ( 22) − ( 22) Total comprehensive loss for the period - - - € ( 22) € (25 030) € (25 052) Equity-settled share-based payments Granted during the period − − 1 499 − − 1 499 Expired during the period − − ( 186) − 186 − Exercised during the period 4 143 ( 133) − 133 147 Issuance of shares for cash 975 47 452 − − − 48 427 Transaction costs − (2,900) − − − (2,900) Total transactions with owners of the company recognized directly in equity 979 44 695 1 180 − 319 47 173 Balance at June 30, 2024 € 5 905 € 290 822 € 8 841 € 115 € (185 540) € 120 143 The accompanying notes are an integral part of these condensed consolidated interim financial statements.

10. 10 NYXOAH SA UNAUDITED CONDENSED CONSOLIDATED INTERIM FINANCIAL INFORMATION AS AT AND FOR THE SIX MONTHS ENDED JUNE 30, 2025 – INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (in thousands) For the six months ended June 30 Notes 2025 2024 CASH FLOWS FROM OPERATING ACTIVITIES Loss before tax for the year € (42 587) € (24 479) Adjustments for Finance income (5 480) (3 477) Finance expenses 7 579 2 436 Depreciation and impairment of property, plant and equipment and right-of-use assets 7, 9 1 071 790 Amortization of intangible assets 8 477 480 Share-based payment transaction expense 17 2 860 1 499 (Decrease)/Increase in provisions ( 596) 179 Other non-cash items 100 ( 153) Cash used before changes in working capital € (36 576) € (22 725) Increase in inventory 11 ( 616) (1 783) (Increase)/Decrease in trade and other receivables 12 725 ( 290) Increase in trade and other liabilities 20,22 1 472 1 412 Cash used from changes in operations € (34 995) € (23 386) Income tax paid ( 258) ( 207) Net cash used in operating activities € (35 253) € (23 593) CASH FLOWS FROM INVESTING ACTIVITIES Purchases of property, plant and equipment 7 ( 761) ( 448) Capitalization of intangible assets 8 (1 554) (3 295) Purchase of financial assets - current 15 (17 549) (59 171) Proceeds from sale of financial assets - current 15 45 067 46 145 Interest income on financial assets 1 583 1 205 Net cash generated/(used) in investing activities € 26 786 € (15 564) CASH FLOWS FROM FINANCING ACTIVITIES Payment of principal portion of lease liabilities 9 ( 609) ( 546) Repayment of other loan − ( 42) Interests paid ( 602) ( 24) Proceeds from issuance of shares, net of transaction costs 16 44 45 674 Other financial costs ( 35) ( 81) Net cash generated/(used) from financing activities € (1 202) € 44 981 Movement in cash and cash equivalents € (9 669) € 5 824 Effect of exchange rates on cash and cash equivalents (1 788) 290 Cash and cash equivalents at January 1 14 € 34 186 € 21 610 Cash and cash equivalents at June 30 14 € 22 729 € 27 724 The accompanying notes are an integral part of these condensed consolidated interim financial statements.

11. 11 NYXOAH SA NOTES TO THE UNAUDITED CONDENSED INTERIM CONSOLIDATED FINANCIAL INFORMATION 1. General information Nyxoah SA (the “Company”) is a public listed company with limited liability (naamloze vennootschap/société anonyme) incorporated and operating under the laws of Belgium and is domiciled in Belgium. The Company is registered with the legal entities register (Brabant Walloon) under enterprise number 0817.149.675. The Company’s registered office is in Rue Edouard Belin 12, 1435 Mont-Saint-Guibert, Belgium. The Company is a medical technology company focused on the development and commercialization of innovative solutions to treat Obstructive Sleep Apnea, or OSA. Our lead solution is the Genio® system, a CE-Marked, patient-centric, minimally invasive, next generation hypoglossal neurostimulations therapy for OSA. OSA is the world’s most common sleep disordered breathing condition and is associated with increased mortality risk and comorbidities including cardiovascular diseases, depression and stroke. The Genio® system is the first neurostimulation system for the treatment of OSA to include a battery-free and leadless neurostimulator capable of delivering bilateral hypoglossal nerve stimulation to keep the upper airway open. The product is intended to be used as a second-line therapy to treat moderate to severe OSA patients who have either not tolerated, failed or refused conventional therapy, including Continuous Positive Airway Pressure, or CPAP, which, despite its proven efficacy, is associated with many limitations, meaning compliance is a serious challenge. In addition, other second-line treatments are more suitable to treat mild to moderate OSA (such as oral devices) or highly invasive. Compared to other hypoglossal nerve stimulation technologies for the treatment of OSA, the Genio® system is a disruptive, differentiating technology that targets a clear unmet medical need thanks to its minimally invasive and quick implantation technique, its external battery and its ability to stimulate the two branches of the hypoglossal nerve. Obstructive sleep apnea is the world’s most common sleep disordered breathing condition. OSA occurs when the throat and tongue muscles and soft tissues relax and collapse. It makes a person stop breathing during sleep, while the airway repeatedly becomes partially (hypopnea) or completely (apnea) blocked, limiting the amount of air that reaches the lungs. During an episode of apnea or hypopnea, the patient’s oxygen level drops, which leads to sleep interruptions. Nyxoah SA has established four wholly owned subsidiaries: Nyxoah Ltd, a subsidiary of the Company since October 21, 2009 (located in Israel and incorporated on January 10, 2008 under the name M.L.G. Madaf G. Ltd), Nyxoah Pty Ltd since February 1, 2017 (located in Australia) and Nyxoah Inc. since May 14, 2020 (located in the USA) and Nyxoah GmbH since July 26, 2023 (located in Germany). The interim condensed consolidated financial statements of Nyxoah SA and its subsidiaries (collectively, the Group) as of June 30, 2025 and for the three and six months ended June 30, 2025, have been authorized for issue on August 18, 2025 by the Board of Directors of the Company. 2. Material accounting policies Basis of Preparation of the interim condensed consolidated financial statements The Company’s interim condensed consolidated financial statements have been prepared in accordance with International Accounting Standard 34 – Interim Financial Reporting (“IFRS”), as issued by the International Accounting Standards Board (IASB) and as endorsed by the European Union. They do not include all the information required for complete annual financial statements and should be read in conjunction with the Company’s last annual consolidated financial statements as at and for the year ended December 31, 2024. Except for the application of standards, interpretations and amendments being mandatory as of January 1, 2025, the accounting policies used for the preparation of the interim condensed consolidated financial statements are consistent with those used for the preparation of the Company’s annual consolidated financial statements as of and for the year ended December 31, 2024. The consolidated financial statements are presented in thousands of Euros (€) and all values are rounded to the nearest thousands, except when otherwise indicated (e.g. € million). The preparation of the interim condensed consolidated financial statements requires the use of certain critical accounting estimates. It also requires management to exercise its judgment in the process of applying the Company’s accounting policies. The areas involving a higher degree of judgement or complexity, are areas where assumptions and estimates are significant to

12. 12 the consolidated financial statements. The critical accounting estimates used in the preparation of the interim consolidated financial statements are consistent with those followed in the preparation of the Company’s annual consolidated financial statements as of and for the year ended December 31, 2024. Going concern principle The Company has consistently operated with deficits and sustained negative cash flows since its inception as a result of the significant research and development expenses incurred for the development and regulatory approval of the Genio® device. As at June 30, 2025, the Company's statement of financial position includes an accumulated loss of €260.2 million and total assets of €116.5 million. Current assets as at June 30, 2025 total €55.1 million, comprising €22.7 million in available cash and cash equivalents, and €20.3 million in marketable securities, primarily derived from previous public offerings. The Company’s current operating plan indicates that it will continue to incur losses from operations and generate negative cash flows from operating activities given ongoing expenditures related to its U.S. commercial launch and the completion of its clinical trials only partially offset by the Company’s revenue generating activities outside the U.S., these were €2.4 million in the first half of 2025 mainly in the EU. Revenue generation is expected to start in the second half of 2025, now that the Company, on August 8, 2025, received FDA marketing approval for its Genio® system, enabling the commercial launch in the United States. The Company projects that its existing cash and cash equivalents and marketable securities should be sufficient to fund operations until early 2026. To meet the Company’s future working capital needs, management is actively exploring different financing avenues, including the public or private issuance of equity and debt financing. Additional funds are pivotal for diverse activities, in particular to launch the Genio® product in the U.S. and the ongoing progression of research and development projects. This raises, however, a material uncertainty in respect of going concern as the current funds are not sufficient to cover a period of 12 months as from the date these financials are authorized for issuance. Although the additional funds have not been raised yet, given the positive outcome from the DREAM trial and the FDA approval for the Genio® system received on August 8, 2025, the Company is confident that raising sufficient funding to continue its operations for at least 12 months following the date these financials are authorized for issuance should not pose significant challenges. The Unaudited Interim Condensed Consolidated Financial Statements have therefore been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The Company confirms that despite the conflict between Israel and countries in the region, operations are continuing notably regarding R&D and production with no major impact and the assets are currently safeguarded. The Company is not suffering impact of this conflict. The Company is monitoring potential impacts from the U.S. political environment ("Liberation Day Trump"). There was no impact on operations or financial results in Q2 2025. New and amended standards and interpretations applicable Effective for the annual periods beginning on January 1, 2025 The Group has not early adopted any standard, interpretation or amendment that has been issued but is not yet effective. The following amendment applies for the first time in 2025, but does not have an impact on the interim condensed consolidated financial statements of the Company: • Amendment to IAS 21 The Effect of Changes in Foreign Exchange Rates: Lack of Exchangeability 3. Critical accounting estimates and assumptions The preparation of interim financial statements in accordance with IFRS requires management to make judgments, estimates and assumptions that may significantly affect the reported amounts of revenues, expenses, assets and liabilities, and the disclosure of contingent liabilities at the end of the reporting period. Refer to the disclosure note 5.5.2 from the Group’s 2024 year-end consolidated financial statements for further details about the main critical accounting estimates and assumptions.

13. 13 4. Segment reporting Based on the organizational structure, as well as the nature of financial information available and reviewed by the Company’s chief operating decision makers to assess performance and make decisions about resource allocations, the Company has concluded that its total operations represent one reportable segment. The chief operating decision maker is the CEO. 5. Fair Value The carrying amount of cash and cash equivalents, trade receivables, other receivables, financial assets and other current assets approximate their value due to their short-term character. The carrying value of current liabilities approximates their fair value due to the short-term character of these instruments. The fair value of non-current liabilities (financial debt and other non-current liabilities), excluding the derivative financial liabilities, is evaluated based on their interest rates and maturity date. These instruments have fixed interest rates and their fair value measurements are subject to changes in interest rates. The fair value measurement is classified as level 3. The sensitivity on the fair value measurements of the recoverable cash advances are further detailed in note 18.1. The derivative financial liabilities and assets which consist of foreign currency swaps and forwards are measured at fair value through profit and loss. Fair value is determined by the financial institution and is based on foreign currency swap and forward rates and the maturity of the instrument. The synthetic warrants are measured at fair value through profit and loss. The fair value is determined using a binomial tree with 240 monthly periods (20 years) and the following key unobservable input: • Volatility of 66,205%, estimated based on the median of the annualized 90-day standard deviation of daily volatility of Nasdaq stock prices over the period from July 2022 to June 2025. A 5% increase in volatility would result in an increase in fair value by €57,000, while a 5% decrease in volatility would result in a decrease in fair value by €67,000. The prepayment option is measured at fair value through profit and loss. There were no changes in the Group’s valuation processes, valuation techniques, and types of inputs used in the fair value measurements during the period. There were no transfers between level 1 and level 2 fair value measurements during the period and no transfers into or out of level 3 fair value measurements.

14. 14 Carrying value Fair value (in EUR 000) As at June 30, 2025 As at December 31, 2024 As at June 30, 2025 As at December 31, 2024 Financial Assets Other long-term receivables (level 3) 452 395 452 395 Prepayment option (level 3) 170 112 170 112 Trade and other receivables (level 3) 3 974 4 293 3 974 4 293 Foreign currency swaps and forwards (level 2) 493 − 493 − Other current assets (level 3) 292 739 292 739 Cash and cash equivalents (level 1) 22 729 34 186 22 729 34 186 Financial assets (level 1) 20 257 51 369 20 257 51 369 Carrying value Fair value (in EUR 000) As at June 30, 2025 As at December 31, 2024 As at June 30, 2025 As at December 31, 2024 Financial liabilities Loan facility agreement (level 3) 7 093 6 898 7 915 7 151 Synthetic warrants (level 3) 2 696 3 204 2 696 3 204 Foreign currency swaps and forwards (level 2) − 353 − 353 Recoverable cash advances (level 3) 9 385 8 871 9 385 8 871 Trade and other liabilities (level 1 and 3) 10 961 11 338 10 961 11 338 6. Subsidiaries For all periods that are mentioned in this report, the Company owns 100% of the shares of Nyxoah LTD, an Israeli company located in Tel-Aviv that was incorporated in 2009 and has a share capital of NIS 1.00. The Company also owns 100% of the shares of Nyxoah PTY LTD, an Australian Company located in Collingwood that was incorporated in 2017 and has a share capital of AUD 100. The Company also owns 100% of the shares of Nyxoah Inc, an US-based company located in Delaware that was incorporated in May 2000 and has a share capital of USD 1.00. The Company also owns 100% of the shares of Nyxoah GmbH, a German company located in Eschborn that was acquired in July 2023 and has a share capital of €25,000. 7. Property, Plant and Equipment The total acquisitions for the six months ended June 30, 2025 amount to €0.8 million (2024: €448,000) and were mainly related to the U.S. production line under construction and laboratory equipment. The cost of property, plant and equipment in 2024 includes a correction of the tax incentive in Belgium on the investments of 2023 for an amount of €93,000. We refer to note 24. The depreciation charge amounts to €457,000 in 2025 and to €336,000 in 2024 for the six months ended June 30.

15. 15 8. Intangible assets (in EUR 000) Development cost Patents and licenses Total Cost Opening value at January 1, 2024 48 671 591 49 262 Additions 3 183 − 3 183 Cost at June 30, 2024 51 854 591 52 445 Opening value at January 1, 2025 53 410 591 54 001 Additions 1 507 − 1 507 Other movements ( 4) − ( 4) Cost at June 30, 2025 54 913 591 55 504 Amortization Opening amortization at January 1, 2024 (2 528) ( 127) (2 655) Amortization ( 459) ( 21) ( 480) Amortization at June 30, 2024 (2 987) ( 148) (3 135) Opening amortization at January 1, 2025 (3 452) ( 168) (3 620) Amortization ( 456) ( 21) ( 477) Amortization at June 30, 2025 (3 908) ( 189) (4 097) Net book value at June 30, 2024 48 867 443 49 310 Net book value at June 30, 2025 51 005 402 51 407 There is only one development project: The Genio® system. The Company started amortizing the first-generation Genio® system in 2021. The amortization amounted to €477,000 for the six months ended June 30, 2025 (2024: €480,000) and is included in research and development expense. The Company continues to incur in 2025 development expenses with regard to the improved second-generation Genio® system and clinical trials to obtain additional regulatory approvals in certain countries or to be able to sell the Genio® System in certain countries. The total capitalized development expenses amounted to €1.5 million and €3.2 million for the six months ended June 30, 2025, and 2024, respectively. The total amount of capitalization of intangible assets in the interim consolidated statements of cash flows is higher than the additions due to the tax incentive relating to investments of 2025 amounting to €47,000 (2024: €112,000). We refer to note 24 for more details. The development of the second-generation Genio® system and clinical trials is expected to be finalized in 2025. 9. Right of use assets and lease liabilities For the six months ended June 30, 2025, the Company entered into new lease agreements for €34,000 (2024: €74,000). The repayments of lease liabilities amounted to €0.7 million (2024: €0.5 million). The depreciations on the right of use assets amounted to €0.6 million and €454,000 for the six months ended June 30, 2025, and 2024, respectively. 10. Other long-term receivables As at (in EUR 000) June 30, 2025 December 31, 2024 R&D tax incentive 1 177 1 110 Prepayment option 170 112 Cash guarantees 452 395 Total other long term receivables 1 799 1 617 The other long-term receivables consist of cash guarantees for an amount of €452,000 (2024: €395,000), a prepayment option valued at €170,000 (2024: €112,000) and an R&D tax incentive in Belgium for an amount of €1.2 million (2024: €1.1 million)

16. 16 related to certain development activities and clinical trials. The Company recognizes the research and development incentive as a long-term receivable and as a deduction from the carrying amount of the (in)tangible asset. For further details regarding the prepayment option, refer to 18.2. The R&D tax incentive recorded as at June 30, 2025 relates to 2022, 2023, 2024 and 2025 investments both on tangible and intangible assets. The incentives are expected to be received 5 years after the investments are made. However, following the Law of May 12, 2024 (Belgian Gazette May 29, 2024), the Belgian R&D tax credit regime has been amended. As of 2024, the R&D tax incentive will be refunded after 4 years instead of 5 years. The long-term receivable as at 2024 also includes a correction of the R&D tax incentive in Belgium on the investments of 2023. For further details, refer to note 24. 11. Inventory As at (in EUR 000) June 30, 2025 December 31, 2024 Raw materials 1 290 1 080 Work in progress 2 351 2 546 Finished goods 1 691 1 090 Total Inventory 5 332 4 716 The increase in inventory is due to increasing activities to prepare for the commercialization in US and further scale-up of the commercialization in EU in 2025. 12. Trade receivables, Contract assets and Other receivables As at (in EUR 000) June 30, 2025 December 31, 2024 Trade receivables 1 330 3 382 Contract assets 1 508 − R&D incentive receivable (Australia) 196 155 VAT receivable 401 741 Current tax receivable 788 967 Foreign currency swaps and forwards 493 − Other 1 136 911 Total trade receivables, contract assets and other receivables 5 852 6 156 The decrease of €304,000 in trade receivables, contract assets and other receivables is mainly due to a decrease in VAT receivable by €340,000 and a decrease in trade receivables and contract assets by €0.5 million. This is partly offset by an increase in foreign currency swaps and forwards of €493,000. The Company can include unbilled receivables in its accounts receivable balance. Generally, these receivables represent earned revenue from products delivered to customers, which will be billed in the next billing cycle. All amounts are considered collectible and billable. As at December 31, 2024 and June 30, 2025, there were no unbilled receivables included in the trade receivables. As of June 30, 2025, the Company has reclassified €1.5 million trade receivables to contract assets in connection with certain customer contracts for the Genio® system. Under these contracts, the Company has transferred control of the Genio® system to the customer and issued the related invoices. However, under the contractual terms, the invoices become payable upon the implantation of the Genio® system in the patient by the customer. As the right to consideration is therefore not unconditional, the related amounts do not meet the criteria for recognition as trade receivables in accordance with IFRS 15. R&D incentive receivables relate to incentives received in Australia as a support to the clinical trials and the development of the Genio® system. The current tax receivable relates to excess payment of corporate income tax in Belgium and the United States.

17. 17 We refer to note 23 for more details on the foreign currency swaps and forwards. 13. Other current assets As at June 30 December 31 (in EUR 000) 2025 2024 Deferred charges 650 918 Accrued income 292 739 Total other current assets 942 1 657 The decrease of €0.7 million in other current assets is due to a decrease in accrued income amounting to €447,000 and a decrease in deferred charges amounting to €268,000. 14. Cash and cash equivalents As at (in EUR 000) June 30, 2025 December 31, 2024 Short term deposit 13 328 28 220 Current accounts 9 401 5 966 Total cash and cash equivalents 22 729 34 186 Cash and cash equivalents decreased to €22.7 million as at June 30, 2025, compared to €34.2 million as at December 31, 2024 which is mainly due to a decrease of short term deposits by €14.9 million which is partially offset by an increase of current accounts by €3.4 million. The short term deposits relate to term accounts with an initial maturity of 3 months or less, measured at amortized costs. 15. Financial assets Current financial assets relate to term accounts with an initial maturity longer than 3 months but less than 12 months measured at amortized costs. As at June 30, 2025, the current financial assets consists of $17.0 million (€14.5 million), which could generate a foreign currency exchange gain or loss in the financial results in accordance with the fluctuations of the USD/EUR exchange rate as the Company’s functional currency is EUR, and €5.8 million. The total amount of term deposits as at June 30, 2025, amounts to €20.3 million. During the period ended as at June 30, 2025, the Company entered into USD term deposits and US Treasury bills for a total amount of $16.0 million (€14.5 million) and €3.0 million. During the period ended as at June 30, 2025, $42.1 million (€46.4 million) and €3.0 million reached maturity and is subsequently held as cash. As at December 31, 2024 the current financial assets consists of $47.4 million (€45.6 million), which could generate a foreign currency exchange gain or loss in the financial results in accordance with the fluctuations of the USD/EUR exchange rate as the Company’s functional currency is EUR, and €5.8 million. The total amount of term deposits as at December 31, 2024, amounts to €51.4 million. 16. Share Capital, Share Premium, Reserves 16.1. Share capital and share premium The number of shares and the par value in the paragraph below take into account resolutions adopted by the shareholders’ meeting of February 21, 2020. All existing preferred shares were converted into common shares, and then a share split of 500:1 was approved by the shareholders’ meeting. The tables and comments below reflect the number of shares after the share split of 500:1 as of January 1, 2020. As part of the IPO on September 21, 2020, the Company incurred direct-attributable transaction costs of €6.5 million which have been deducted from the share premium.

18. 18 As part of the IPO on July 7, 2021, the Company incurred direct-attributable transaction costs of €7.6 million which have been deducted from the share premium. As at June 30, 2025, the share capital of the Company amounts to €6.4 million represented by 37 435 640 shares, and the share premium amounts to €332.6 million before deduction of the transaction costs. Evolution of the share capital and share premium over the six months ended June 30, 2025 and 2024: (Number of shares except otherwise stated) Common shares Total of shares Par value (EUR) Share capital Share premium January 1, 2024 28 673 985 28 673 985 0.17 4 926 260 631 March 6, 2024 - Exercise warrants 8 650 8 650 0.17 1 61 April 17, 2024 - Exercise warrants 3 000 3 000 0.17 1 16 May 28, 2024 - Capital increase in cash 5 374 755 5 374 755 0.17 923 44 946 June 3, 2024 - Capital increase in cash 300 000 300 000 0.17 52 2 506 June 24, 2024 - Exercise warrants 12 625 12 625 0.17 2 66 June 30, 2024 34 373 015 34 373 015 0.17 5 905 308 226 September 3, 2024 - Exercise warrants 13 750 13 750 0.17 2 72 September 25, 2024 - Exercise warrants 2 250 2 250 0.17 1 12 October 9, 2024 - Capital increase in cash 3 000 000 3 000 000 0.17 515 24 071 November 15, 2024 - Exercise warrants 38 250 38 250 0.17 7 198 December 31, 2024 37 427 265 37 427 265 0.17 6 430 332 579 May 12, 2025 - Exercise warrants 2 000 2 000 0.17 − 10 June 13, 2025 - Exercise warrants 6 375 6 375 0.17 1 33 June 30, 2025 37 435 640 37 435 640 0.17 6 431 332 622 On March 6, 2024, pursuant to the exercise of warrants, the Company issued 8,650 new shares for an aggregate capital increase of €62,000 (including share premium). On April 17, 2024, pursuant to the exercise of warrants, the Company issued 3,000 new shares for an aggregate capital increase of €17,000 (including share premium). On May 28, 2024, the Company issued 5,374,755 new shares for an aggregate capital increase of €45.9 million (including share premium) in the framework of an underwritten public offering in the United States, which included shares sold in a private offering to certain qualified or institutional investors outside the United States. 1,996,187 shares were subscribed to in euro at a share price of €8.54 per share. 3.378.568 shares were subscribed to in US dollars, at a share price of $9.25 per share. On June 3, 2024, the Company issued 300,000 new shares for an aggregate capital increase of €2.6 million (including share premium) as a result of the exercise by the underwriters of the May 28, 2024 capital increase to exercise their option to purchase additional shares (“greenshoe”). All 300,000 shares were subscribed to in US dollars at a share price of $9.25 per share. The proceeds of the May 28 and June 3, 2024 capital increases were used for general corporate purposes. On June 24, 2024, pursuant to the exercise of warrants, the Company issued 12,625 new shares for an aggregate capital increase of €68,000 (including share premium). On September 3, 2024, pursuant to the exercise of warrants, the Company issued 13,750 new shares for an aggregate capital increase of €74,000 (including share premium). On September 25, 2024, pursuant to the exercise of warrants, the Company issued 2,250 new shares for an aggregate capital increase of €13,000 (including share premium). On October 9, 2024, the Company issued 3,000,000 new shares for an aggregate capital increase of €24.6 million (including share premium). The Company raised $27.0 million in gross proceeds pursuant to the Company’s $50 million at-the-market

19. 19 ("ATM") program established on December 22, 2022 at an issue price equal to the market price on the Nasdaq Global Market at the time of the sale. The proceeds will be used to meet demand in Europe and the U.S. On November 15, 2024, pursuant to the exercise of warrants, the Company issued 38,250 new shares for an aggregate capital increase of €205,000 (including share premium). As part of the above capital increases, the Company incurred direct-attributable transaction costs of €3.7 million which were deducted from the share premium. The proceeds from the capital increase net of transaction costs amounted to €71.5 million. On May 12, 2025, pursuant to the exercise of warrants, the Company issued 2,000 new shares for an aggregate capital increase of €10,000 (including share premium). On June 13, 2025, pursuant to the exercise of warrants, the Company issued 6,375 new shares for an aggregate capital increase of €34,000 (including share premium). 16.2. Reserves The reserves include the share-based payment reserve (see note 17), other comprehensive income and the retained loss. Retained loss is comprised of primarily accumulated losses, other comprehensive income is comprised of currency translation reserves and remeasurements of post-employment benefit obligations. The movement in other comprehensive income for the six months ended June 30, 2025 and 2024 is detailed in the table below: (in EUR 000) Currency translation reserve Postemployment benefit obligations Total Opening value at January 1, 2024 54 83 137 Items that may be subsequently reclassified to profit or loss (net of tax) Currency translation differences (22) - (22) Total other comprehensive income at June 30, 2024 32 83 115 Opening value at January 1, 2025 820 94 914 Items that may be subsequently reclassified to profit or loss (net of tax) Currency translation differences 230 - 230 Total other comprehensive income at June 30, 2025 1 050 94 1 144 17. Share-Based compensation Equity-settled share-based payment transactions As of June 30, 2025, the Company has four outstanding equity-settled share-based incentive plans, including (i) the 2021 warrants plan (the 2021 plan), (ii) the 2022 warrants plan (the 2022 plan), (iii) the 2024 warrants plan (the 2024 plan) and (iv) the 2025 warrants plan (the 2025 plan).

20. 20 The changes of the year for the equity-settled warrant plans are as follows: Number of shares (after share split) warrants give right to across all plans 2025 2024 Outstanding at January 1 2 258 319 1 635 606 Granted 658 374 385 250 Forfeited (37 377) (13 625) Exercised (13 875) (24 275) Expired (67 500) (35 975) Outstanding as at June 30 2 797 941 1 946 981 Exercisable as at June 30 1 715 849 1 210 613 On February 1, 2024 and on April 21, 2024, respectively 300,250 and 85,000 warrants were granted from the 2022 plan. As of June 30, 2024, a total number of 24,275 warrants have been exercised. The following warrants were granted during 2025: - On February 1, 2025, 329,431 warrants were granted from the 2024 plan (17,000 warrants were not accepted) - On February 1, 2025, 223,943 warrants were granted from the 2025 plan (10,000 warrants were not accepted) - On March 14, 2025, 45,000 warrants were granted from the 2025 plan - On April 8, 2025, 30,000 warrants were granted from the 2025 plan - On May 5, 2025, 30,000 warrants were granted from the 2025 plan As of June 30, 2025, a total number of 13,875 warrants have been exercised. For 5,500 exercised warrants, the related shares were not yet issued per June 30, 2025. As of June 30, 2025, the remaining 30,000 warrants from the 2020 warrants plan expired as the expiration date of the 2020 plan was reached. The following tables provide the input to the Black-Scholes model for warrants granted in 2020, 2021, 2022, 2023, 2024 and 2025 related to the 2020 warrant plan, the 2021 warrant plan, the 2022 warrant plan, the 2024 warrant plan and the 2025 warrant plan. The tables and notes use as a basis, the number of shares the warrants give right to across all plans. Plan 2020 (grant 2020) Plan 2021 (grant Sept 17 2021) Plan 2021 (grant Oct 27 2021) Plan 2021 (grant Feb 21 2022) Plan 2021 (grant Feb 21 2022) Return Dividend 0% 0% 0% 0% 0% Expected volatility 56.32% 51.30% 51.50% 49.80% 49.80% Risk-free interest rate -0.20% -0.36% -0.18% 0.37% 0.37% Expected life 3 3 3 3 3 Exercise price 11.94 25.31 25.31 17.76 25.31 Stock price 10.20 25.75 20.50 17.50 17.50 Fair value 3.31 9.22 5.94 6.05 4.15

21. 21 Plan 2021 (grant Feb 21 2022) Plan 2021 (grant May 14 2022) Plan 2021 (grant June 8 2022) Plan 2021 (grant Aug 8 2022) Plan 2021 (grant Aug 8 2022) Return Dividend 0% 0% 0% 0% 0% Expected volatility 49.80% 49.80% 52.60% 53.71% 53.97% Risk-free interest rate 0.50% 1.06% 1.60% 1.39% 1.45% Expected life 4 3 3 3 4 Exercise price 17.76 13.82 12.95 9.66 9.66 Stock price 17.50 13.82 13.34 9.75 9.75 Fair value 6.90 4.94 5.21 3.79 4.32 Plan 2021 (grant March 24 2023 Plan 2021 (grant April 12 2023) Plan 2021 (grant June 14 2023) Plan 2022 (grant June 14 2023) Plan 2022 (grant Oct 20 2023) Return Dividend 0% 0% 0% 0% 0% Expected volatility 52.00% 52.00% 51.28% 51.28% 50.00% Risk-free interest rate 3.20% 3.24% 3.36% 3.36% 3.55% Expected life 3 3 3 3 3 Exercise price 5.42 6.36 7.19 7.19 5.92 Stock price 6.70 7.08 7.10 7.10 5.60 Fair value 3.09 3.04 2.75 2.75 2.07 Plan 2022 (grant Feb 01 2024) Plan 2022 (grant Apr 21 2024) Plan 2022 (grant Aug 2 2024) Plan 2024 (grant Aug 2 2024) Plan 2024 (grant Sep 18 2024) Return Dividend 0% 0% 0% 0% 0% Expected volatility 62.20% 65.50% 66.00% 66.00% 65.20% Risk-free interest rate 2.63% 3.08% 2.55% 2.55% 2.38% Expected life 3 3 3 3 3 Exercise price 5.24 9.04 7.88 7.88 7.20 Stock price 9.96 9.20 7.56 7.56 7.54 Fair value 6.26 4.40 3.47 3.47 3.60 Plan 2024 (grant Nov 25 2024) Plan 2024 (grant Nov 25 2024) Plan 2024 (grant Feb 1 2025) Plan 2024 (grant Feb 1 2025) Plan 2025 (grant Feb 1 2025) Return Dividend 0% 0% 0% 0% 0% Expected volatility 63.70% 63.70% 63.00% 63.00% 63.00% Risk-free interest rate 2.24% 2.24% 2.26% 2.26% 2.26% Expected life 3 3 3 3 3 Exercise price 7.69 8.04 9.63 10.15 10.15 Stock price 8.10 8.10 10.15 10.15 10.15 Fair value 3.80 3.70 4.76 4.61 4.61

22. 22 Plan 2025 (grant Mar 14 2025) Plan 2025 (grant Apr 8 2025) Plan 2025 (grant May 5 2025) Return Dividend 0% 0% 0% Expected volatility 63.00% 65.24% 64.97% Risk-free interest rate 2.40% 2.11% 2.02% Expected life 3 3 3 Exercise price 10.80 7.20 5.65 Stock price 10.80 5.76 5.65 Fair value 4.91 2.31 2.60 On March 24, 2023, the Company reduced the exercise price of 75% of the warrants previously granted to warrant holders under the 2021 Warrants Plan to 5.42 EUR to reflect the decrease in the company’s share price. For the remaining 25% of the warrants previously granted under the 2021 Warrants Plan, the exercise price will remain unchanged. All other terms and conditions of the re-priced warrants remain unchanged to the original option agreement. The Company determined the fair value of the options at the date of the modification (March 24, 2023). The incremental fair value of the re-priced warrants will be recognised as an expense over the period from the modification date to the end of the vesting period. For the warrants already vested at the date of modification, the incremental fair value is fully recognised as an expense at date of modification. The expense for the original option grant will continue to be recognised as if the terms have not been modified. The fair value of the modified warrants was determined using the same models and principles as described above, with the following model inputs: Plan 2021 (grant Sept 17 2021) Plan 2021 (grant Oct 27 2021) Plan 2021 (grant Feb 21 2022) Plan 2021 (grant Feb 21 2022) Return Dividend 0% 0% 0% 0% Expected volatility 52.00% 52.00% 52.00% 52.00% Risk-free interest rate 3.25% 3.25% 3.17% 3.36% Expected life 2 2 2 2 Exercise price 5.42 5.42 5.42 5.42 Stock price 6.68 6.68 6.68 6.68 Fair value 2.48 2.52 2.67 2.49 Incremental Fair value 2.38 2.40 2.23 2.38 Plan 2021 (grant Feb 21 2022) Plan 2021 (grant May 14 2022) Plan 2021 (grant Aug 8 2022) Plan 2021 (grant Aug 8 2022) Return Dividend 0% 0% 0% 0% Expected volatility 52.00% 52.00% 52.00% 52.00% Risk-free interest rate 3.03% 3.13% 3.13% 2.98% Expected life 3 2 3 4 Exercise price 5.42 5.42 5.42 5.42 Stock price 6.68 6.68 6.68 6.68 Fair value 3.05 2.75 2.87 3.21 Incremental Fair value 2.23 1.92 1.28 1.19

23. 23 Equity-settled share-based payment transactions – Restricted Stock Units (“RSU”) In 2024, each non-executive director was granted 14,806 “restricted share units” or “RSUs”, whereby each RSU represents the obligation of the relevant non-executive director to subscribe for one new ordinary share of the Company at a subscription price of EUR 0.1718 per share (irrespective of the market value of the share at that time). The key features of the RSUs can be summarized as follows: • Unless the shareholders’ meeting of the Company decides otherwise, whether for one, more or all non-executive directors, RSUs will be granted to non-executive directors on a yearly basis on the date of the annual shareholders’ meeting. • RSUs do not grant voting rights, preferential subscription rights or other membership rights. • The number of RSUs to be granted on an annual basis shall be calculated as follows: EUR 130,000 divided by the average closing price of the Company’s shares on the stock exchange where the Company’s shares are first listed, during the month of May of the year of the grant. For directors that are appointed between two annual shareholders’ meetings, this number shall be prorated. • RSUs are not transferable, except in case of death. • RSUs in principle vest on the first anniversary of the date of grant provided that the relevant non-executive director is still in office at that time. In the event of death or an “exit”, immediate vesting applies. • The vesting of RSUs is not linked to any performance criteria but rather based on continued service during the vesting period. Therefore, the remuneration in RSUs is a form of fixed remuneration. • The grant of RSUs to a non-executive director that has not been explicitly refused by the relevant non-executive director fifteen calendar days following the date of grant, shall be deemed accepted by the relevant non-executive director and creates an obligation for the relevant non-executive director to subscribe for the underlying shares when the RSUs have vested. The RSU is therefore not an option leaving discretion with the director whether to exercise or not. • The new shares to be issued pursuant to the exercise of RSUs shall be issued, subscribed, and fully paid up in principle within one month following the date of vesting of the relevant RSUs. The new shares shall be issued under the authorized capital of the Company. The Company reserves the right to deliver existing shares (if it has access to its own shares in accordance with applicable company law rules) or to compensate non-executive directors in cash (i.e., a cash amount equal to the closing stock price of the shares on the stock exchange where the Company’s shares are first listed on the first trading day following the date of vesting of the relevant RSUs, minus the subscription price of EUR 0.1718 per share). The RSUs will be accounted for as an equity-settled share-based payment plan as the Company can issue new shares under the authorized capital. The fair value of the RSUs granted is equal to the share price at the grant date minus the exercise price of EUR 0.1718 and equals EUR 7,65 per RSU granted. At June 12, 2024, the Company has granted a total of 103,642 RSUs towards 7 directors which vested at the shareholders’ meeting held in June 2025. As at June 30, 2025 all RSUs had been exercised but the related shared were not yet issued. At June 11, 2025, the Company has granted a total of 146,531 RSUs, with the same conditions as the 2024 RSUs, towards 7 directors which will vest at the shareholders’ meeting held in June 2026. The total RSUs outstanding as at June 30, 2025 was 146,531 RSUs. Equity-settled share-based payment expense The Company has recognized €2.9 million share-based payment expense for the six months ended June 30, 2025 (2024: €1.5 million).

24. 24 18. Financial Debt Financial debt mainly consists of recoverable cash advances, EIB finance agreement and synthetic warrants. The related amounts can be summarized as follows: As at (in EUR 000) June 30, 2025 December 31, 2024 Recoverable cash advances - Non-current 9 139 8 623 Recoverable cash advances - Current 246 248 Total Recoverable cash advances 9 385 8 871 EIB finance agreement - Non-current 7 093 6 898 Synthetic warrants - Non-current 2 696 3 204 Total Other loan 9 789 10 102 Non-current 18 928 18 725 Current 246 248 Total Financial Debt 19 174 18 973 18.1. Financial debt related to recoverable cash advances Recoverable cash advances received As at June 30, 2025, the details of recoverable cash advances received can be summarized as follows: (in EUR 000) Contractual advances Advances received Fixed reimbursemen ts* Variable reimbursemen ts* Sleep apnea device (6472) 1 600 1 600 588 8 First articles (6839) 2 160 2 160 628 24 Clinical trial (6840) 2 400 2 400 510 13 Activation chip improvements (7388) 1 467 1 467 88 18 Total 7 627 7 627 1 814 63 * Excluding interests During the six months ended June 30, 2025, the Company made no reimbursements and did not receive any new amounts. Based on expected timing of sales and after discounting, the financial debt related to the recoverable cash advances is as follows: As at (in EUR 000) June 30, 2025 December 31, 2024 Contract 6472 1 814 1 711 Contract 6839 2 467 2 332 Contract 6840 2 979 2 819 Contract 7388 2 125 2 009 Total recoverable cash advances 9 385 8 871 Non-current 9 139 8 623 Current 246 248 Total recoverable cash advances 9 385 8 871

25. 25 The amounts recorded under “Current” caption correspond to the sales-independent amounts (fixed repayment) and salesdependent reimbursements (variable repayment) estimated to be repaid to the Walloon Region in the next 12-month period. The estimated sales-independent (fixed repayment) as well as sales-dependent reimbursements (variable repayment) beyond 12 months are recorded under “Non-current” liabilities. Changes in the recoverable cash advances can be summarized as follows: (in EUR 000) 2025 2024 As at January 1 8 871 8 674 Initial measurement and re-measurement ( 25) ( 18) Discounting impact 539 519 As at June 30 9 385 9 175 A sensitivity analysis of the carrying amount of recoverable cash advances has been done to assess the impact of a change in assumptions. The Company tested reasonable sensitivity to changes in revenue projections of +/- 25% and in the discount rates of +/- 25%. The table hereunder details the sensitivity results: Fair Value of Liabilities as of end of 2025 (in EUR 000) Variation of revenue projections Variation of discount rates * -25% 0% 25% -25% 9 786 10 152 10 400 0% 8 947 9 385 9 687 25% 8 213 8 705 9 049 * A change of -25% in the discount rates implies that the discount rate used for the fixed part of the recoverable cash advances is 3.8% instead of 5% while the one used for the variable part is 9.4% instead of 12.5%. An increase of 25% of revenue projections implies, if discount rates does not change, an increase of the expected liability as repayment of the liability is accelerated. An increase of 25% of the discount rate decreases the expected liability if revenue projections remain unchanged. 18.2. Financial debt related to loan facility agreement and synthetic warrants agreement On July 3, 2024 the Company has signed a €37.5 million loan facility agreement with the European Investment Bank (“EIB”). The agreement is backed by the European Commission’s InvestEU program. The Company plans to use the funding for research and development, and for scaling-up its manufacturing capacity to meet demand in Europe and the U.S. The €37.5 million facility is divided into three tranches: €10 million for the first tranche (“Tranche A”), €13.75 million for the second tranche (“Tranche B”) and €13.75 million for the third tranche (“Tranche C”). Disbursement under the various tranches is subject to certain conditions. Tranche A carries an annual 5% cash and 5% capitalized interest rate, and features a five-year bullet repayment schedule. The various tranches do not contain revenue or liquidity covenants. The first tranche A for an amount of €10 million, was disbursed on July 26, 2024. In connection with the loan facility agreement, and as a condition to drawdown thereunder, the Company also entered into a “synthetic warrant agreement” with the EIB. Under the synthetic warrant agreement, in consideration for the facility, in connection with each tranche of the facility, the EIB will be granted “synthetic warrants” with a duration of 20 years. The number and strike price of the synthetic warrants will be calculated based on tranche-specific formulas provided for in the synthetic warrant agreement. The synthetic warrants can be exercised as of the maturity date of the relevant tranche of the facility or, in exceptional situations, earlier. Such synthetic warrants will entitle the EIB to receive from the Company a cash consideration equal to the 20-day volume weighted average price of a share in the Company on the stock exchange, reduced by the applicable strike price per synthetic warrant, and multiplied by the number of synthetic warrants that the EIB exercises. In connection with Tranche A, the EIB has been granted 468,384 synthetic warrants with a strike price of €8,54 that the EIB can exercise after the maturity of Tranche A (5 years) or, in exceptional situations, earlier.

26. 26 Change in loan facility can be summarized as follows: (in EUR 000) 2025 2024 As at January 1 6 898 − Effective interest rate adjustment 195 − As at June 30 7 093 − Change in synthetic warrants can be summarized as follows: (in EUR 000) 2025 2024 As at January 1 3 204 − Fair value adjustment ( 508) − As at June 30 2 696 − Change in prepayment option can be summarized as follows: (in EUR 000) 2025 2024 As at January 1 112 − Fair value adjustment 58 − As at June 30 170 − 19. Provisions As at June 30 As at December 31 (in EUR 000) 2025 2024 Provision for constructive obligation 309 672 Other provisions 95 328 Total provisions 404 1 000 The Company has a constructive obligation related to the ongoing replenishment of certain consumable components, based on business practices and customer expectations. On May 30, 2025, the Company was sued in the U.S. District Court of Delaware by Inspire Medical, Inc. (“Inspire”) for the alleged infringement of 3 Inspire patents (US Patent Nos: 10,898,709, 11,806,526, and 11,850,424). The complaint requests customary remedies for patent infringement, including (i) a judgment that the Company has infringed and is infringing the Inspire Patents, (ii) damages, (iii) attorneys’ fees, (iv) a permanent injunction preventing the Company from infringing the Inspire Patents and (v) costs and expenses. The Company subsequently engaged a counsel to represent the Company in this case. The Company intends to vigorously defend itself against the allegations brought forward in the Inspire complaint. The Company expects to file a response to Inspire’s complaint by the August 25, 2025, agreed upon deadline. Given the early stage of this litigation, the Company is unable to predict the likelihood of success of the Inspire claims against the Company or to quantify any risk of loss. Therefore, the Company has not accrued for any potential litigation losses as of June 30, 2025. Legal costs incurred in connection with this matter have been accrued through June 30, 2025, and are recognized in the Research and Development Expense on the line item “Consulting and contractors fees”. The Company will review the status of the litigation each quarter going forward for accrual purposes

27. 27 20. Trade payables As at (in EUR 000) June 30, 2025 December 31, 2024 Payables 4 437 3 749 Invoices to be received 4 971 5 756 Total Trade payables 9 408 9 505 The decrease in total trade payables of €97,000 as at June 30, 2025 is due to a decrease in invoices to be received of €0.8 million which is partly compensated by an increase in trade payables of €0.7 million. 21. Income taxes and deferred taxes For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Current tax income/(expense) ( 275) (434) ( 407) ( 547) Deferred tax income/(expense) (3) (7) 3 (4) Total Income Tax Income/(Expense) (278) (441) ( 404) (551) For the six months ended June 30, 2025, the current tax expense mainly relates to (i) an increase of income tax payable by certain of the Company’s subsidiaries for an amount of €286,000 (2024: €172,000), and (ii) an additional accrual of the liability for uncertain tax positions for an amount of €121,000 (2024: €243,000). The uncertain tax position was recorded following certain public rulings and guidance issued by tax authorities in one of the jurisdictions that the Company operates in. The current tax liability of €4.0 million mainly relates to a liability for uncertain tax positions for an amount of €3.8 million. 22. Other liabilities As at (in EUR 000) June 30, 2025 December 31, 2024 Holiday pay accrual 774 903 Salary 2 583 3 354 Accrued expenses 963 511 Foreign currency swaps and forwards - current − 353 Other 1 451 1 103 Total other liabilities 5 771 6 224 The decrease by €453,000 in other liabilities as at June 30, 2025, is mainly due to a decrease by €0.9 million in payroll related liabilities and a decrease by €353,000 in the fair value of the foreign currency swaps and forwards. We refer to note 23. The decrease is partly offset by an increase of €452,000 in accrued expenses and an increase of €348,000 in Other. As at June 30, 2025, Other mainly consists of an outstanding liability related to the continued development of the Company’s strategic R&D project of which €0.9 million (2024: €0.9 million) is recorded as current other liability and €379,000 (2024: €0.8 million) as non-current other liability. 23. Foreign currency swaps and forwards The Company is exposed to currency risk primarily due to the expected future USD, AUD and NIS expenses that will be incurred as part of the ongoing and planned marketing, clinical trials and other related expenses. A financial risk management policy has been approved to i) generate yields on liquidity and ii) reduce the exposure to currency fluctuations with a timeline up to 24 months and by means of foreign currency swaps and forwards. There have not been any transfers of level 3 categories during the year.

28. 28 The Company has entered into several foreign currency swaps and forwards for which the notional amounts are detailed in the table below: As at (in EUR 000) June 30, 2025 December 31, 2024 Foreign currency swaps EUR - USD (in EUR) 3 500 5 000 Foreign currency swaps EUR - USD (in USD) 4 006 5 451 Foreign currency forwards EUR - USD (in EUR) 2 000 4 000 Foreign currency forwards EUR - USD (in USD) 2 111 4 277 Foreign currency swaps EUR - ILS (in EUR) 8 000 − Foreign currency swaps EUR - ILS (in ILS) 1 953 − Foreign currency forwards ILS - EUR (in ILS) 2 414 − Foreign currency forwards ILS - EUR (in EUR) 10 000 − Foreign currency swaps ILS - EUR (in ILS) 3 371 − Foreign currency swaps ILS - EUR (in EUR) 14 000 − The following table shows the carrying amount of derivative financial instruments measured at fair value in the statement of the financial position including their levels in the fair value hierarchy: As at June 30, 2025 (in EUR 000) Level I Level II Level III Total Financial assets Foreign currency swaps − 231 − 231 Foreign currency forwards − 262 − 262 The fair value is determined by the financial institution and is based on foreign currency swaps and forwards rates and the maturity of the instrument. All foreign currency swaps are classified as current as their maturity date is within the next twelve months. The change in the balance of the financial assets is detailed as follows: (in EUR 000) 2025 2024 Opening value at January 1 − 343 Fair value adjustments 493 (314) Closing value at June 30 493 29 The change in the balance of the financial liabilities is detailed as follows: (in EUR 000) 2025 2024 Opening value at January 1 353 90 Settled contracts (353) − Fair value adjustments − (26) Closing value at June 30 − 64 24. Results of operation Revenue and cost of goods sold In the six months ended June 30, 2025, the Company generated revenue for the amount of €2.4 million (2024: €2.0 million). In the three months ended June 30, 2025, the Company generated revenue for the amount of €1.3 million (2024: €0.8 million).

29. 29 Revenue is recognized based on the satisfaction of performance obligations identified in customer contracts. Performance obligations are satisfied when control of the Genio® system is transferred to the customer, either upon shipment or delivery, depending on contractual terms. Prior to 2024, the Genio® system, delivered as a bundled kit, was treated as a single performance obligation, recognized at a point in time. However, as from 2024 due to evolving commercial arrangements, the Company has identified a separate performance obligation related to the replenishment of additional disposable patches beyond the initial shipment. As a result, a portion of the transaction price is now allocated to these future deliveries, with revenue deferred and recognized upon transfer of control. The contract liability included in the consolidated balance sheet is related to revenue attributed to the additional replenishment of disposable patches which is recognized when control of the patches is transferred to the customer or patient quarterly following the patient implants. The current contract liability amounts to €460,000 while the non-current contract liability amounts to €225,000. The revenue recognized in the six months ended June 30, 2025 that was included in the contract liability balance at the beginning of the period amounts to €165,000. For the six-month period ended June 30, 2025 the sales (based on country of customer) were generated in Germany (€2.1 million), England (€268,000) and UAE (€32,000) (2024: Germany: €1.6 million, Switzerland: €306,000, Spain: €72,000 and Italy: €46,000). For the six-month period ended June 30, 2025, the Company has had two customers with individual sales larger than 10% of the total revenue (2024: Two customers with individual sales larger than 10% of the total revenue). For the three-month period ended June 30, 2025 the sales (based on country of customer) were generated in Germany (€1.2 million) and England (€165,000) (2024: Germany: €0.7 million, Switzerland: €96,000 and Spain: €24,000). Cost of goods sold for the three and six months ended June 30, 2025 and 2024: For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Purchases of goods and services (*) 843 1 961 1 512 2 518 Inventory movement ( 353) (1 680) ( 616) (1 783) Total cost of goods sold 490 281 896 735 (*) Including purchases of raw material, direct labour allocation, indirect labour allocation, fees of subcontractors, warranty and shipping cost (direct) Operating expenses The tables below detail the operating expenses for the six months ended June 30, 2025 and 2024: (in EUR 000) Total cost Capitalized Operating expense for the period Research and development 20 602 (1 554) 19 048 Selling, general and administrative expenses 23 063 - 23 063 Other income/(expense) (171) 56 (115) For the six months ended June 30, 2025 43 494 (1 498) 41 996 (in EUR 000) Total cost Capitalized Operating expense for the period Research and development 17 965 (3 294) 14 671 Selling, general and administrative expenses 12 355 - 12 355 Other income/(expense) (247) ( 2) ( 249) For the six months ended June 30, 2024 30 073 (3 296) 26 777

30. 30 The tables below detail the operating expenses for the three months ended June 30, 2025 and 2024: (in EUR 000) Total cost Capitalized Operating expense for the period Research and development 10 750 ( 691) 10 059 Selling, general and administrative expenses 10 672 - 10 672 Other income/(expense) (56) 25 (31) For the three months ended June 30, 2025 21 366 ( 666) 20 700 (in EUR 000) Total cost Capitalized Operating expense for the period Research and development 8 604 (1 132) 7 472 Selling, general and administrative expenses 6 383 - 6 383 Other income/(expense) (53) ( 5) ( 58) For the three months ended June 30, 2024 14 934 (1 137) 13 797 Research and Development expenses For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Staff costs 3 700 3 243 8 280 7 213 Consulting and contractors' fees 2 975 1 077 3 823 2 036 Q&A regulatory 43 140 119 243 IP costs 98 32 178 32 Depreciation and amortization expense 418 348 829 679 Travel 434 285 713 530 Manufacturing and outsourced development 1 292 750 2 600 2 513 Clinical studies 1 396 2 200 3 250 3 705 Other expenses 355 425 742 588 IT 39 104 68 426 Capitalized costs ( 691) (1 132) (1 554) (3 294) Total research and development expenses 10 059 7 472 19 048 14 671 Before capitalization of €1.6 million for the six months ended June 30, 2025 and €3.3 million for the six months ended June 30, 2024, research and development expenses increased by €2.6 million or 14.7 %, from €18.0 million for the six months ended June 30, 2024, to €20.6 million for the six months ended June 30, 2025, due to a combined effect of the higher R&D activities and consulting fees, this increase was offset by a decrease in clinical study expenses. Additionally, IT costs decreased due to the initiation of a new ERP implementation in 2023. In May 2025, the Company became involved in an intellectual property litigation in the United States. For more information, we refer to note 19 – Provisions. Before capitalization of €0.7 million for the three months ended June 30, 2025 and €1.1 million for the three months ended June 30, 2024, research and development expenses increased by €2.1 million or 24.9 %, from €8.6 million for the three months ended June 30, 2024, to €10.8 million for the three months ended June 30, 2025, due to an increase of R&D activities, higher consulting fees and higher manufacturing expenses; this increase was offset by a decrease of the clinical study expenses.

31. 31 Selling, General and Administrative expenses For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Staff costs 6 326 2 293 13 270 4 876 Consulting and contractors' fees 2 639 2 659 5 845 4 223 Legal fees 217 105 479 582 Rent 124 179 230 344 Depreciation and amortization expense 356 311 719 589 IT 587 213 1 045 586 Travel 410 414 1 168 598 Insurance fees 108 139 221 261 Other ( 95) 70 86 296 Total selling, general and administrative expenses 10 672 6 383 23 063 12 355 Selling, general and administrative expenses increased by €10.7 million or 86.7 % from €12.4 million for the six months ended June 30, 2024 to €23.1 million for the six months ended June 30, 2025, mainly due to an increase of costs to support the commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the Genio® system in the U.S. following receipt of FDA approval. Consulting and contractor fees also includes a provision for an amount of €390,000 recognized under IAS 37 for the estimated future costs related to the replenishment of certain consumable components, reflecting a constructive obligation arising from business practices. Selling, general and administrative expenses increased by €4.3 million or 67.2 % from €6.4 million for the three months ended June 30, 2024 to €10.7 million for the three months ended June 30, 2025, mainly due to an increase of costs to support the commercialization of the Genio® system and the Company’s overall scale-up preparations for the commercialization of the Genio® system in the U.S. following receipt of FDA approval. Other operating income / (expenses) The Company had other operating income of €115,000 for the six months ended June 30, 2025 compared to other operating income of €249,000 for the six months ended June 30, 2024. The Company had other operating income of €31,000 for the three months ended June 30, 2025 compared to other operating income of €58,000 for the three months ended June 30, 2024. For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Recoverable cash advances Initial measurement and re-measurement 7 5 25 18 R&D incentives 49 137 110 251 Capitalization of R&D incentive (25) (84) (56) (20) Other income/(expenses) − − 36 − Total Other Operating Income/(Expenses) 31 58 115 249 The other operating income for the six-month period ended June 30, 2025, contains the R&D incentive in Australia and Belgium. The incentives to be received relate to development expenses incurred by the subsidiary in Australia and Belgium. For the six-month period ended June 30, 2025, €56,000 has been deducted from the expenses capitalized in relation to this R&D incentive. The R&D incentive and capitalization of R&D incentive for the six-month period ended June 30, 2024 also includes a correction of the R&D incentive in Belgium on the investments of 2023 for an amount of €93,000.

32. 32 25. Employee benefits For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Salaries 8 073 4 226 16 418 8 958 Social charges 758 459 1 619 1 091 Pension charges 128 164 299 220 Share-based payment 887 540 2 862 1 499 Other 180 147 352 321 Total employee benefits 10 026 5 536 21 550 12 089 For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Selling, general and administrative expenses 6 326 2 293 13 270 4 876 Research & Development expenses 3 700 3 243 8 280 7 213 Total employee benefits 10 026 5 536 21 550 12 089 We refer to note 24 for more details on the increase in total employee benefits. 26. Financial income For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Interests 513 472 1 458 970 Exchange differences 2 164 1 593 2 951 2 498 Fair value adjustment foreign currency swaps and forwards 219 − 493 − Fair value adjustment synthetic warrants ( 43) − 508 − Fair value adjustment prepayment option ( 1) − 58 − Other 6 4 12 9 Total financial income 2 858 2 069 5 480 3 477 The financial income increased from €3.5 million for the six-month period ended June 30, 2024 to €5.5 million for the sixmonth period ended June 30, 2025. This increase can mainly be explained by the fair value adjustments on foreign currency swaps and forwards and on synthetic warrants. In addition, there was also an increase in interest income. For the six-month period ended June 30, 2025, exchange gains amount to €3.0 million (three-month period ended June 30, 2025: €2.2 million), mainly driven by the monthly revaluation on balance sheet items and realized exchange gains on currency swaps and forwards and USD financial assets (note 15). For the six-month period ended June 30, 2025, total interest income amounted to €1.5 million (three month period ended June 30, 2025: €0.5 million). This interest income relates to the term accounts. More information on the fair value adjustment foreign currency swaps and forwards can be found in note 23. The fair value adjustments of synthetic warrants and prepayment option are related to the EIB loan facility agreement. More information can be found in note 18.

33. 33 27. Financial expense For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Fair value adjustment foreign currency swaps and forwards − ( 24) − 288 Recoverable cash advances, Accretion of interest 269 259 539 519 Interest and bank charges 373 57 761 120 Interest on lease liabilities 35 36 71 74 Exchange differences 2 772 1 115 6 141 1 435 Other ( 112) 2 67 − Total financial expense 3 337 1 445 7 579 2 436 The financial expenses increased from €2.4 million for the six-month period ended June 30, 2024 to €7.6 million for the sixmonth period ended June 30, 2025 mainly due to an increase in exchange differences. The exchange losses amounting to €6.1 million for the six-month period ended June 30, 2025 mainly relate to the revaluation of both the Company’s USD cash balance and USD financial assets: Nyxoah holds both EUR and USD balances, each used to settle expenses in their respective currencies. While Nyxoah does hedge a few transactions using swap contracts, the Company does not apply hedge accounting. The swap instruments are short-term and mainly used to manage transactional exposures in GBP, ILS, and CHF. Although GBP sales are expected to cover GBP costs going forward, some contracts have been used to address short-term needs. In addition, a few swaps were used to neutralize the currency impact of our USD-denominated T-bills, which were purchased using EUR balances for convenience, in line with the portfolio allocation approved by the board. The main contributor to the currency loss is explained by the fact that Nyxoah consolidates in EUR, but the majority of the cash is held in USD to cover future USD expenses. As a result, the recent appreciation of the euro, approximately 12.81% between January 1 and June 30, 2025, has led to a significant unrealized FX loss upon translation of USD cash during consolidation. More information on the fair value adjustment foreign currency swaps and forwards can be found in note 23. The discounting impact of the recoverable cash advances is further detailed in note 18 above. The increase in interest and bank charges for the three month period ended June 30, 2025 can be explained by the interest charge on the EIB financial debt. 28. Earnings/(Loss) Per Share (EPS) The Basic Earnings Per Share and the Diluted Earnings Per Share are calculated by dividing earnings for the year by the weighted average number of shares outstanding during the year. As the Company is incurring net losses, outstanding warrants have no dilutive effect. As such, there is no difference between the Basic and Diluted EPS. EPS for June 2025 has been presented in the income statement taking into account resolutions adopted by the shareholders’ meeting of February 21, 2020. All existing preferred shares were converted into common shares, and then a share split of 500:1 was approved by the shareholders’ meeting.

34. 34 For the three months ended June 30 For the six months ended June 30 2025 2024 2025 2024 As at June 30, after conversion and share split Outstanding common shares at period-end 37 435 640 34 373 015 37 435 640 34 373 015 Weighted average number of common shares outstanding 37 431 255 30 744 220 37 429 260 29 706 019 Number of shares resulting of the exercise of outstanding warrants 2 797 941 1 946 981 2 797 941 1 946 981 Basic and Diluted EPS for the three and six-month period ended June 30, 2025 and 2024 based on weighted average number of shares outstanding after conversion and share split are as follows: For the three months ended June 30 For the six months ended June 30 2025 2024 2025 2024 Loss of year attributable to equity holders (in EUR) (20 607 000) (13 124 000) (42 991 000) (25 030 000) Weighted average number of common shares outstanding (in units) 37 431 255 30 744 220 37 429 260 29 706 019 Basic earnings per share in EUR (EUR/unit) (0.551) (0.428) (1.149) (0.843) Diluted earnings per share in EUR (EUR/unit) (0.551) (0.428) (1.149) (0.843) 29. Other commitments On June 27, 2025, the Company entered into an agreement with a key supplier to make a progress payment of USD 1,150,000 related to manufacturing services and inventory purchases. Although the payment was made in July 2025, the Company had committed to the prepayment as of June 30, 2025, in accordance with the agreement terms. 30. Related Party Transactions Transactions between the Company and its subsidiaries have been eliminated in consolidation and are not disclosed in the notes. Related party transactions are disclosed below. 30.1. Remuneration of Key Management Key management consists of the members of executive management. For the period ended June 30, 2025, executive management consisted of the Chief Executive Officer (CEO), the Chief Financial Officer (CFO), the Chief Commercial Officer (CCO) and the Chief Technology Officer (CTO) of the Company. For the period ended June 30, 2025, the table below includes the remuneration package of all members of executive management. For the period ended June 30, 2024, executive management consisted of the Chief Executive Officer (CEO), the Chief Financial Officer (CFO) and the Chief Technology Officer (CTO) of the Company. For the period ended June 30, 2024, the table below includes the remuneration package of all members of executive management.

35. 35 For the three months ended June 30 For the six months ended June 30 (in EUR 000) 2025 2024 2025 2024 Short-term remuneration & compensation (1) 751 480 1 425 951 Post-employment benefits 14 6 35 11 Share based payment (2) 229 97 554 329 Total 994 583 2 014 1 291 (1) Includes base remuneration, fringe benefits, short term (one-year) performance related bonus (i.e. variable remuneration), sign-on bonuses. (2) Warrant expense under IFRS 2. 30.2. Relationship and transactions with non-executive directors and holders of more than 3% of our share capital: For the six months ended June 30, 2025 For the six months ended June 30, 2024 (in EUR 000) Set up of Production Line Board Remuneration Set up of Production line Board Remuneration Cochlear 52 − 176 − Robert Taub (until June 12, 2024)/Robelga SRL (since June 12, 2024) − 59 − 60 Kevin Rakin − 32 − 32 Pierre Gianello − 27 − 45 Jurgen Hambrecht − 32 − 33 Rita Mills − 39 − 35 Giny Kirby − 25 − 33 Wildman Ventures LLC − 38 − 52 Total 52 252 176 290 Amounts outstanding at period-end − 110 − 110 For the three months ended June 30, 2025 For the three months ended June 30, 2024 (in EUR 000) Set up of Production Line Board Remuneration Set up of Production line Board Remuneration Cochlear − − − − Robert Taub (until June 12, 2024)/Robelga SRL (since June 12, 2024) − 31 − 29 Kevin Rakin − 16 − 16 Pierre Gianello − 13 − 28 Jurgen Hambrecht − 16 − 18 Rita Mills − 19 − 15 Giny Kirby − 13 − 12 Wildman Ventures LLC − 14 − 29 Total − 122 − 147 Amounts outstanding at period-end − 110 − 110 For the period ended June 30, 2025, our non-executive directors were: Robert Taub (until June 12, 2024), Robelga SRL (permanently represented by Robert Taub) (as from June 12, 2024), Jürgen Hambrecht, Kevin Rakin, Rita Johnson-Mills, Virigina Kirby, Wildman Ventures, LLC (permanently represented by Daniel Wildman) and Pierre Gianello.

36. 36 The warrant expense under IFRS 2 related to the warrants that were granted to the non-executive directors amounted to €0.8 million for the period ended June 30, 2025, (€218,000 for the period ended June 30, 2024). The Company and Cochlear Limited, or Cochlear, have entered into a collaboration agreement, dated January 2023, related to the transfer of assets and related support for the setting up of a production line in the U.S. This statement scope of work led to a financial impact of €52,000 for the six months ended June 30, 2025 and impact of €176,000 for six months ended June 30, 2024 and was recognized as part of assets under construction. On September 28, 2023, the Company announced a partnership with ResMed in Germany to increase OSA awareness and therapy penetration in the German market. The Company and ResMed Germany will establish a continuum of care that will educate and guide OSA patients in the German market from diagnosis through treatment. Together, the companies will work to accelerate patient identification and better support patient set-up on the appropriate therapy. Effective October 1, 2024, the Company entered into a collaboration agreement with Man & Science SA to develop a miniaturized injectable neuromodulation device. The Company retains exclusive rights for its use in treating obstructive sleep apnea. 30.3. Relationship and transactions with members of key management For the period ended June 30, 2025, our key management consisted of the members of executive management: Olivier Taelman (CEO), John Landry (CFO), Scott Holstine (CCO) and Bruno Onkelinx (CTO). For the period ended June 30, 2024, our key management consisted of the members of executive management: Olivier Taelman (CEO), Loic Moreau (CFO), and Bruno Onkelinx (CTO). From September 1, 2021 until August 19, 2024, Olivier Taelman performed his function as CEO of the Company on a selfemployed basis in accordance with a service agreement between Nyxoah SA and Olivier Taelman. As from August 19, 2024, Olivier Taelman temporarily relocated to the U.S. Since then, he performs his function as CEO of the Company partially on a self-employed basis in accordance with a service agreement between Nyxoah SA and Olivier Taelman and partially as an employee of Nyxoah Inc. Loïc Moreau and Bruno Onkelinx are employees of Nyxoah SA. John Landry and Scott Holstine are employees of Nyxoah Inc. Members of our key management were granted warrants during the period ended June 30, 2025 and June 30, 2024. 31. Events after the Balance-Sheet Date In July 2025, the Company reorganized its global R&D function and expects to transition all ongoing R&D activities from Israel to the U.S. and Belgium. This organizational change was considered a potential indicator of impairment; however, based on the impairment assessment performed, no impairment was identified. On August 8, 2025, the Company received FDA marketing approval for its Genio® system, enabling the commercial launch in the United States. This confirms the Company's transition into a full commercial stage company which is expected to have a positive impact on the Company’s revenue beginning in the second half of 2025.

37. 37 RESPONSIBILITY STATEMENT We certify that, to the best of our knowledge, a) the condensed consolidated interim financial statement, prepared in accordance with the applicable standards for financial statements, give a true and fair view of the assets, liabilities, financial position and results of the Company and the undertakings included in the consolidation taken as a whole; and b) this interim management report provides a true and fair overview of the development, results and the position of the Company and the undertakings included in the consolidation taken as a whole, as well as a description of the principal risks and uncertainties that they face. Mont-Saint-Guibert, August 18, 2025. On behalf of the board of directors Robelga SRL Olivier Taelman (permanently represented by Robert Taub) CEO Chairman

Nyxoah Interim Financial Report: First Half 2025

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Nyxoah Interim Financial Report: First Half 2025

Nyxoah Interim Financial Report: First Half 2025

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Nyxoah Interim Financial Report: First Half 2025

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