Nyxoah S.A. (NYXH) Ownership

NASDAQ: NYXHTop holders, insider trades and short interest.

NYXH ownership summary

as of October 18, 2026
Institutions
30.9%
of shares outstanding
Insiders
33.19%
of shares outstanding
Shares outstanding
101.8M
Float
50.9M
shares available to trade
Short interest
0.36%
322K shares short
Days to cover
0.57
short interest up 19.7% vs prior month
  • Institutions 30.87%
  • Insiders 33.19%
  • Other investors 35.94%

NYXH top mutual fund and ETF holders

20 largest
Nyxoah S.A. top fund holders
#Holder% of sharesSharesValueChangeReported
1Econopolis Belgian Champions A EUR Dis0.98%1.0M$1.1M+986,835 (+6,578.9%)June 30, 2026
2Belfius Equities Bel=Go C Cap0.65%660K$732,367+553,993 (+523.6%)June 30, 2026
3AXAWF Eurp Ex-UK Mccp F Cap EUR0.57%578K$641,375+217,815 (+60.5%)June 30, 2026
4Aesculape SRI IC0.42%425K$471,750+124,000 (+41.2%)June 30, 2026
5Helium Fund Selection C-EUR0.38%382K$424,355+382,302 (0.0%)December 31, 2025
6apo Medical Opportunities R0.35%354K$392,550—August 31, 2026
7TEQ - Disruptive Technologies - I-II0.34%344K$381,807+4,906 (+1.4%)August 31, 2026
8BNP Paribas Belgium Equity Cl EUR Acc0.18%184K$204,007—August 31, 2026
9Helium Fund Performance S EUR0.14%143K$159,284+143,499 (0.0%)December 31, 2025
10BlackRock Health Sciences Term Trust0.11%112K$124,341—June 30, 2026
11GVC Gaesco T.F.T. FI0.08%85K$94,350—September 30, 2026
12Fidelity Nasdaq Composite Index0.07%69K$76,694—August 31, 2026
13TEQ - Small & Mid Cap Tech I-II0.04%40K$44,205+424 (+1.1%)August 31, 2026
14TEQ- Disruptive Tech In I-III0.04%36K$40,233+10 (+0.0%)August 31, 2026
15Deutsche Postbank Europafonds Plus0.03%35K$38,850—May 31, 2026
16BSO Euro Santé I0.03%30K$33,300—September 30, 2026
17Pareturn GVC Gaesco Euro SC Eqty Fd U0.03%30K$33,300—May 31, 2026
18Pareturn GVC Gaesco Absolute Return U0.03%30K$33,300—May 31, 2026
19AXA Pension 2033-2035 I0.01%11K$12,258+4,138 (+59.9%)June 30, 2026
20AXA Pension Long Terme I0.01%6,423$7,130−8,681 (−57.5%)June 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

NYXH shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns NYXH

Institutional investors own 30.9% of Nyxoah's shares and insiders 33.19%. Short interest is 0.36% of the float, or 0.57 days of average trading volume. The share count rose 169.7% since 2019.

Related: NYXH analyst forecast, NYXH key metrics. See the NYXH stock overview for the latest quote and news.

NYXH ownership FAQ

What percentage of Nyxoah is owned by institutions?

Institutions hold 30.9% of Nyxoah's shares outstanding; insiders hold 33.19%.

Which funds own Nyxoah?

The largest fund holders of Nyxoah are Econopolis Belgian Champions A EUR Dis (0.98%), Belfius Equities Bel=Go C Cap (0.65%), AXAWF Eurp Ex-UK Mccp F Cap EUR (0.57%), Aesculape SRI IC (0.42%), Helium Fund Selection C-EUR (0.38%).

What is Nyxoah's short interest?

322K shares of Nyxoah were sold short, 0.36% of the float; at the average daily volume it would take 0.57 days to cover.

How many shares of Nyxoah are outstanding?

Nyxoah has 101.8M shares outstanding, of which 50.9M are in the public float.

Medical Devices: ownership