NYXH · Nyxoah SA · Holdings

$0.91 +0.05 (+6.35%) At close · Oct 27 Q2 2026 earnings call transcript

Market Cap

$87.22M

101.84M

Volume · Oct 27 295.87K Avg daily vol (3M) 298.24K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of NYXH: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 44

Total Value: $37,537,275

Total Shares: 22,616,812

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 45 13F filers

Top Holder

65.7%

of institutional value

Top 5

82.1%

of institutional value

Top 10

95.1%

of institutional value

HHI

4,426

Highly concentrated

Who Holds NYXH

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 45 filers, like-for-like change +489.7%; actively managed books +586.8%; index-like books -68.0%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	13.7%	21	+138.6%	8	4
Exempt adviser	2.4%	1	0.0%	0	0
Adviser	4.2%	1	+1712.6%	1	1
Bank	0.2%	3	+37.8%	3	3
Broker-dealer	0.2%	1	0.0%	0	0
Non-US	4.5%	3	+26.4%	0	0
Holding company	0.6%	3	-74.5%	0	0
Insurer	0.0%	0	—	0	0
Unknown	74.4%	12	+3923.3%	7	0

Style	Share	Filers	Change	New	Exited
Index-like	0.8%	3	-68.0%	0	0
Systematic-like	0.6%	3	+74.5%	1	1
Concentrated	75.2%	7	+2902.4%	4	1
Diversified active	23.5%	32	+76.0%	14	6
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	3.3%	23	-20.0%	6	3
Medium turnover	11.6%	6	+228.7%	4	1
High turnover	78.6%	13	+1174.6%	8	3
Unknown	6.5%	3	-0.7%	1	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	77.1%	9	+1646.6%	5	2
Medium horizon	4.6%	5	-29.0%	0	0
Long horizon	12.1%	26	+119.3%	10	5
Unknown	6.2%	5	+4673.1%	4	1
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	6.5%	8	+52.4%	3	2
$1B to $10B	76.3%	16	+1287.4%	5	0
$10B to $100B	15.4%	11	+305.7%	6	2
$100B or more	1.8%	10	-39.2%	5	4
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	2.0%	12	+61.4%	3	2
Pooled investment vehicles	11.5%	8	+160.5%	5	2
Registered funds and BDCs	0.2%	1	+111.5%	0	0
Other	0.0%	0	—	0	0
Unknown	86.3%	24	+680.5%	11	4

Private funds	Share	Filers	Change	New	Exited
Hedge funds	11.5%	9	+160.1%	5	2
Other private funds	0.0%	1	0.0%	0	0
Private funds, type not stated	0.1%	1	new	1	0
No private funds	2.0%	10	+55.4%	2	2
Unknown	86.3%	24	+680.5%	11	4

Location	Share	Filers	Change	New	Exited
United States	88.5%	33	+790.6%	15	7
Outside the US	11.5%	12	+17.7%	4	1

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

45 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

2.22% of filers hold it in their top 10

Mar 31, 2026: 1

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Top 10 holders

95.1%

of 13F shares, Herfindahl 0.443

Active holders

+586.8%

like-for-like share change of active filers

5% stakes on record

1 13D, 4 13G (1 institutional, 1 passive, 2 exempt)

How long holders have held it value-weighted 1.7 quarters

Under 1 year 93.9% 1 to 3 years 5.40% 3 years or more 0.719% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$3.32

estimated per share

Mar 31, 2026: $10.39

Quarter-end price

$1.69

implied by 13F values

Estimated gain or loss

-49.1%

price against the estimated cost

Estimated at a loss

100.0%

of costed 13F value

Estimated cost covers 91.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies NYXH's active holders also own, quarter ended Mar 31, 2026

#	Company	Shared holders	Similarity
1	ABVX Abivax S.A.	3	0.145

Shareholder Targets

13F filers that own its peers but not NYXH, quarter ended Mar 31, 2026

Found through its holder-overlap peers: ABVX. 235 filers in all.

#	Filer	In peers	Of book	Largest peers
1	TCG Crossover Management, LLC Unknown, Concentrated	$721,668,814 1 held	21.7%	ABVX
2	UBS Group AG Bank, Diversified active	$506,353,656 1 held	0.090%	ABVX
3	Darwin Global Management, Ltd. Exempt adviser, Concentrated	$386,234,956 1 held	9.59%	ABVX
4	Caligan Partners LP Registered adviser, Concentrated	$162,785,237 1 held	11.5%	ABVX
5	ADAR1 Capital Management, LLC Registered adviser, Diversified active	$155,224,015 1 held	9.84%	ABVX
6	WESTFIELD CAPITAL MANAGEMENT CO LP Registered adviser, Diversified active	$147,309,146 1 held	0.620%	ABVX
7	FMR LLC Holding company, Diversified active	$143,237,633 1 held	0.010%	ABVX
8	Helikon Investments Ltd Unknown, Concentrated	$112,833,627 1 held	4.26%	ABVX
9	Eversept Partners, LP Registered adviser, Diversified active	$104,048,001 1 held	6.91%	ABVX
10	JANUS HENDERSON GROUP PLC Adviser, Diversified active	$97,857,609 1 held	0.050%	ABVX

Fund Ownership of NYXH by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type	Of shares outstanding	Shares	Funds
Index funds	0.00%	0	0
Index ETFs	0.00%	0	0
Active ETFs	0.00%	0	0
Active funds	0.00%	774	1
Unclassified	0.00%	0	0
All registered funds	0.00%	774	1

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 20 Exempt adviser 1 Adviser 1 Bank 3 Broker-dealer 1 Non-US 3 Holding company 3 Unknown 12

Showing 44 of 44

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

AIGH Capital Management LLC

$24,563,946

65.44%

14,534,880

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Worth Venture Partners, LLC	3,979,650	$6,725,608	27.4%	Other
Held directly	10,555,230	$17,838,338	72.6%	Sole

BNP PARIBAS ASSET MANAGEMENT Holding S.A.

$1,626,665

4.33%

962,524

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BNP PARIBAS ASSET MANAGEMENT Europe	962,524	$1,626,665	100.0%	Defined

Blackstone Inc.

$1,557,335

4.15%

921,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Blackstone Alternative Solutions L.L.C.	921,500	$1,557,335	100.0%	Other

Vestal Point Capital, LP

$1,425,449

3.80%

843,461

HEIGHTS CAPITAL MANAGEMENT, INC

$1,400,677

3.73%

828,803

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	828,803	$1,400,677	100.0%	Other

Hudson Bay Capital Management LP

$1,213,389

3.23%

717,982

Pentwater Capital Management LP

$1,014,000

2.70%

600,000

Rossmore Private Capital

$985,514

2.63%

714,141

SYQUANT CAPITAL SAS

$823,022

2.19%

596,393

ANDERA PARTNERS

$720,438

1.92%

522,057

READYSTATE ASSET MANAGEMENT LP

$350,625

0.93%

207,471

Axxion S.A.

$349,043

0.93%

252,930

BlackRock, Inc.

$204,839

0.55%

121,207

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	6,637	$11,216	5.5%	Sole
BLACKROCK ADVISORS LLC	112,019	$189,312	92.4%	Sole
BlackRock Institutional Trust Company, N.A.	2,551	$4,311	2.1%	Sole

Integrated Wealth Concepts LLC

$169,000

0.45%

100,000

IFP Advisors, Inc

$165,092

0.44%

119,632

CITADEL ADVISORS LLC

$135,529

0.36%

80,195

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	80,195	$135,529	100.0%	Defined

Ikarian Capital, LLC

$80,035

0.21%

47,358

GEODE CAPITAL MANAGEMENT, LLC

$75,715

0.20%

44,802

JANE STREET GROUP, LLC

$73,588

0.20%

43,544

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	13,408	$22,659	30.8%	Defined
Jane Street Global Trading, LLC	30,136	$50,929	69.2%	Defined

LPL Financial LLC

$61,281

0.16%

36,261

UBS Group AG

$60,246

0.16%

35,649

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	35,649	$60,246	100.0%	Defined

DEUTSCHE BANK AG\

$59,150

0.16%

35,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investment GmbH	35,000	$59,150	100.0%	Defined

RENAISSANCE TECHNOLOGIES LLC

$56,581

0.15%

33,480

XTX Topco Ltd

$53,473

0.14%

31,641

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	31,641	$53,473	100.0%	Defined

Elk River Wealth Management LLC

$51,217

0.14%

30,306

AlphaCore Capital LLC

$51,217

0.14%

30,306

Federation des caisses Desjardins du Quebec

$39,377

0.10%

23,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	23,300	$39,377	100.0%	Defined

OLD MISSION CAPITAL LLC

$32,848

0.09%

19,437

Invst, LLC

$27,469

0.07%

16,254

J.W. COLE ADVISORS, INC.

$22,730

0.06%

13,450

CREDIT AGRICOLE S A

$19,489

0.05%

11,532

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Credit Agricole Corporate & Investment Bank joint	11,532	$19,489	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$19,391

0.05%

11,474

Scientech Research LLC

$18,301

0.05%

10,829

OSAIC HOLDINGS, INC.

$11,160

0.03%

6,604

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	6,604	$11,160	100.0%	Defined

MORGAN STANLEY

$7,562

0.02%

4,475

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	4,475	$7,562	100.0%	Defined

GHP Investment Advisors, Inc.

$3,574

0.01%

2,590

Versant Capital Management, Inc

$3,208

0.01%

2,325

Rockefeller Capital Management L.P.

$1,690

0.00%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	1,000	$1,690	100.0%	Defined

ROYAL BANK OF CANADA

$1,690

0.00%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	1,000	$1,690	100.0%	Defined

Fourth Dimension Wealth, LLC

$676

0.00%

400

WELLS FARGO & COMPANY/MN

$591

0.00%

350

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	350	$591	100.0%	Defined

Cheviot Value Management, LLC

$338

0.00%

200

Caitong International Asset Management Co., Ltd

$111

0.00%

SBI Securities Co., Ltd.

0.00%

Key facts CIK 1857190 CUSIP B6S7WD106 13F (30d) 8 filings 8 filers Visit website Investor relations