Nyxoah
NYXH • NASDAQ
Nyxoah is a medical - instruments & supplies company in the healthcare sector on NASDAQ, led by Olivier Taelman, with a market cap of $210.4M. As of Q3 2025, 8% of shares are held by 30 institutional investors, with Vestal Point Capital, LP as the largest holder at 2.95%.
CEOOlivier Taelman
Overview
Overview of institutional ownership in NYXH as of Q3 2025 with a market cap of $172.7M
All Institutions
- Institutions
- 30
- Value Held
- $13.0M
- Shares Held
- 2.8M
- Avg Position
- $434.0K
- Median Position
- $94.5K
Hedge Funds
- Hedge Funds
- 6
- Value Held
- $6.2M
- Shares Held
- 1.3M
- Avg Position
- $1.0M
- Median Position
- $233.4K
Ownership Breakdown
Based on market cap of $172.7M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in NYXH as of Q3 2025
| Institution | Position Value |
|---|---|
 Vestal Point Capital, LP Hedge Fund•Long/Short | $5.1M 0.26% of portfolio |
B BlackRock, Inc. Institution | $3.4M 0.00% of portfolio |
 FRANKLIN RESOURCES INC Institution | $923.0K 0.00% of portfolio |
 Rossmore Private Capital RIA/Wealth | $616.1K 0.07% of portfolio |
 Kovack Advisors, Inc. RIA/Wealth | $446.4K 0.04% of portfolio |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | $443.5K 0.00% of portfolio |
 Sio Capital Management, LLC Hedge Fund•Long/Short | $233.9K 0.06% of portfolio |
 Ikarian Capital, LLC Hedge Fund•Event Driven | $232.9K 0.05% of portfolio |
 Federation des caisses Desjardins du Quebec Fund of Funds | $230.2K 0.00% of portfolio |
 FMR LLC Institution | $224.0K 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for NYXH in Q3 2025
- Traded
- −$2.1M
- Buyers
- 16
- Sellers
- 9
- Total Bought
- +$930.7K
- Total Sold
- −$3.0M
- Avg Position
- $383.0K
Biggest Buyers
| Institution | Net Bought |
|---|---|
FMR LLC Institution | +$224.0K +-630.9K shares |
Kovack Advisors, Inc. RIA/Wealth | +$180.4K +39.2K shares |
 DEUTSCHE BANK AG\ Institution | +$115.0K +25.0K shares |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$97.6K +21.2K shares |
Federation des caisses Desjardins du Quebec Fund of Funds | +$88.0K +19.1K shares |
Rossmore Private Capital RIA/Wealth | +$68.7K +14.8K shares |
 BANK OF AMERICA CORP /DE/ Institution | +$55.3K +12.0K shares |
A Advisor Group Holdings, Inc. Institution | +$24.1K +3.9K shares |
 UBS Group AG Institution | +$21.6K +4.7K shares |
L LPL Financial LLC Institution | +$15.7K +3.4K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
Vestal Point Capital, LP Hedge Fund•Long/Short | −$1.4M −294.6K shares |
A AXA Institution | −$644.3K −86.1K shares |
FRANKLIN RESOURCES INC Institution | −$433.9K −94.3K shares |
B BlackRock, Inc. Institution | −$166.9K −36.3K shares |
 GOLDMAN SACHS GROUP INC Institution | −$116.0K −15.5K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$85.6K −18.6K shares |
 BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$84.4K −11.3K shares |
S Shay Capital LLC Institution | −$73.6K −16.0K shares |
 BARCLAYS PLC Institution | −$29.5K −3.9K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited NYXH in Q3 2025
- New Positions
- 4
- New Value
- $221.8K
- Exited Positions
- 4
- Exited Value
- $874.2K
New Positions
| Institution | Position Value |
|---|---|
DEUTSCHE BANK AG\ Institution | $115.0K 25.0K shares |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $97.6K 21.2K shares |
A AdvisorNet Financial, Inc Institution | $4.6K 1.0K shares |
 Rockefeller Capital Management L.P. Long Only Manager | $4.6K 1.0K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
A AXA Institution | $644.3K 86.1K shares |
GOLDMAN SACHS GROUP INC Institution | $116.0K 15.5K shares |
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | $84.4K 11.3K shares |
BARCLAYS PLC Institution | $29.5K 3.9K shares |
Options Activity
Institutions with the largest Call and Put options positions in NYXH as of Q3 2025
- Call Positions
- 0
- Call Value
- -
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
| No call positions found | |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with NYXH as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Vestal Point Capital, LP Hedge Fund•Long/Short | 0.26% $5.1M |
Rossmore Private Capital RIA/Wealth | 0.07% $616.1K |
Sio Capital Management, LLC Hedge Fund•Long/Short | 0.06% $233.9K |
Ikarian Capital, LLC Hedge Fund•Event Driven | 0.05% $232.9K |
Kovack Advisors, Inc. RIA/Wealth | 0.04% $446.4K |
S Shay Capital LLC Institution | 0.03% $156.4K |
 BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds | 0.00% $67.8K |
 Fourth Dimension Wealth, LLC RIA/Wealth | 0.00% $3.6K |
Federation des caisses Desjardins du Quebec Fund of Funds | 0.00% $230.2K |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | 0.00% $79.6K |
Hedge Fund Spotlight
Discover hedge funds investing in NYXH
CITADEL ADVISORS LLC
Hedge Fund • Multi-Strategy
Portfolio ManagerKenneth Cordele Griffin
- Portfolio Value
- $122.08B
- Positions
- 5,531
- Last Reported
- Q3 2025
Sector Allocation
Position in Nyxoah
- Market Value
- $97.6K
- Shares Held
- 21.2K
- Portfolio Weight
- 0.00%
- Owned Since
- 2025-Q3
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $2.1B | 1.68% | |
Semiconductors Technology | $1.8B | 1.50% | |
Internet Content & Information Communication Services | $1.4B | 1.18% |
