| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 7Developing evidence | 100.0% (7/7) | 71.4% (5/7) | +4.0% | +3.1% | -6.3% |
| 20D | 7Developing evidence | 100.0% (7/7) | 42.9% (3/7) | -3.0% | -3.3% | -23.1% |
| 60D | 7Developing evidence | 100.0% (7/7) | 0.0% (0/7) | -23.3% | -21.7% | -44.9% |
| 120D | 4Small sample | 100.0% (4/4) | 0.0% (0/4) | -49.6% | -49.6% | -52.3% |
COMPANY RESEARCH
NYXOAH
NYXH.BR · Belgium · Healthcare · Medical Instruments & Supplies
INSIDER SIGNAL
Insider activity score：72.9 / 100
10 insiders · 13 purchase events · €12.32m net purchases
Europe #34 · Belgium #1
WHY THIS SIGNAL?
Score anatomy
Each bar shows the contribution to the current score; the weights and formula stay unchanged.
Cluster+35.0 / 35
How many distinct insiders bought in the cluster
Purchase size+25.0 / 25
Purchase value relative to company size and liquidity
Role+17.1 / 20
The seniority and relevance of participating insiders
Recency+0.0 / 10
How recently the purchases occurred
Conviction+10.0 / 10
How clearly buying stands out from other activity
What is holding the score back?
- ⚠ Purchase activity is becoming less recent
- ✓ Broad buyer cluster · 4+ distinct filers
- ✓ Strong insider role · ? involved
The role contribution uses the inverted role input of the current European model.
Buying concentration
Not worked out: the scoring window holds no qualifying purchase filing, or the purchases are reported in more than one currency.
This is a ranking under the current European screening rules—not a probability of gain, return forecast, or buy recommendation.
Key purchase quotes (filing currency)
| Filer | Price per unit | Trade date |
|---|---|---|
| Gianello Pierre | 0.17 EUR | Jun 30, 2026 |
| Hambrecht Jürgen | 0.17 EUR | Jun 30, 2026 |
| ROBELGA | multiple quote currencies | Jun 9, 2026 |
Model details
Cluster breakdown (does not change the score)
- 15-day buyer breadth (count)
- 7 distinct reported filers
- Peak time window
- 2026-06-30 to 2026-06-30
- Current breadth input
- 1.000 (capped at 4+ buyers)
- Buyer independence
- Not yet measured; related-party fields are not cross-market comparable
What the filings show
- 🟢 Recent eligible purchase
Gianello Pierre · 4k EUR · Price 0.17 EUR · Jun 30, 2026 - 🟢 Eligible purchase
Hambrecht Jürgen · 4k EUR · Price 0.17 EUR · Jun 30, 2026 - 🟢 Large eligible purchase
ROBELGA · 9.72m mixed · Price multiple quote currencies · Jun 9, 2026 - 🟡 10 remaining qualified transaction line(s) across 10 disclosure(s)
Insider vs stock price
3 purchase day(s), 14 purchase line(s) in the 180-day window.
Daily close (EUR)Day with an insider purchaseTwo or more insiders the same day
Markers sit on the closing price of the transaction day. They show when insiders traded, not the price they paid or received. "Since" compares that day's close with the last close shown; it is what happened at this company, not a forecast.
If you had followed the purchase
Each row starts on the first close on or after the day a purchase was made public, the earliest a reader could have acted, and ends on the last close shown above.
| Made public | Insiders | In this stock, now | In the median peer stock, now | Difference |
|---|---|---|---|---|
| 2026-06-18 | 4 | 766 −23.4% | too few peers | — |
| 2026-06-19 | 1 | 755 −24.5% | too few peers | — |
| 2026-07-02 | 7 | 702 −29.8% | too few peers | — |
Close to close, before costs, taxes, dividends and currency moves. The peer is the median of the other stocks on the same exchange for which this site holds prices (0 here), not an index. This is what happened, not a forecast: across all purchases on this site the typical gap is close to zero.
Insider timeline
7 insiders bought on the same day, 30 Jun: 6 Role not classified, 1 Associated person. The share closed at 1.51 that day and at 1.07 most recently (−29.1%). That week 192 companies across Europe disclosed insider purchases, an ordinary week (10 of the last 26).
Tap an item for what it means.
●A purchase: the bigger the dot, the more was bought
Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.
▮Purple band: several insiders bought within 15 days
The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 30 Jun, with 7 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.
Blue line: this share's price, −61.7% over these six months
The closing price of each day, from 2.80 on 2026-04-21 to 1.07 on 2026-10-15. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.
Dashed line: the typical stock on the same exchange, −8.7%
Taken from the 31 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −61.7%, the typical one −8.7%, 53.0 points behind. It is not an index and not a comparison within one industry.
▂Grey bars: companies across Europe disclosing purchases each week
A taller bar is a week in which more companies disclosed insider purchases. The purple bar is the week of the band above: 192 companies, number 10 of the last 26 weeks. If that week was a peak anyway, buying together is less special than it looks.
This company: insiders buying per month, last 12 months
7Nov
1Dec
Jan
Feb
Mar
Apr
May
10Jun
Jul
Aug
Sep
Oct
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since | Earlier purchases |
|---|---|---|---|---|---|---|---|
| Hambrecht Jürgen | Role not classified | 3 | — | — | 2026-06-09 | −21.2% | 5 completed, median −18.4% against peers after 60 sessions |
| ROBELGA | Role not classified | 2 | — | 9.7M EUR | 2026-06-09 | −21.2% | 7 completed, median −23.3% against peers after 60 sessions |
| Taub Robert | Role not classified | 1 | — | 6.0M EUR | 2026-06-09 | −21.2% | fewer than 5 completed |
| Gianello Pierre | Role not classified | 1 | — | 3.6k EUR | 2026-06-30 | −29.1% | fewer than 5 completed |
| Johnson-Mills Rita | Role not classified | 1 | — | 3.6k EUR | 2026-06-30 | −29.1% | fewer than 5 completed |
| Kirby Virginia | Role not classified | 1 | — | 3.6k EUR | 2026-06-30 | −29.1% | fewer than 5 completed |
| Rakin Kevin | Role not classified | 1 | — | 3.6k EUR | 2026-06-30 | −29.1% | fewer than 5 completed |
| JH Capital GmbH | Associated person | 1 | — | 3.0M EUR | 2026-06-09 | −21.2% | fewer than 5 completed |
| Kevin L. Rakin Irrevocable Trust UAD 05/05/10 | Associated person | 1 | — | 1,000.0k USD | 2026-06-09 | −21.2% | fewer than 5 completed |
| Wildman Ventures LLC | Associated person | 1 | — | 3.6k EUR | 2026-06-30 | −29.1% | fewer than 5 completed |
Why this score? · Model details
Priority = 100 × Σ(fixed weight × 0–1 rule-based input)
| Factor | Weight | This company input | Point contribution |
|---|---|---|---|
| 15-day buyer breadth (count) | 35% | 1.000 | 35.0 |
| Qualified-buy size | 25% | 1.000 | 25.0 |
| Role informativeness (inverted) | 20% | 0.146; source unavailable, filled with a cohort-neutral value | 2.9 |
| Recency | 10% | 0.001 | 0.0 |
| Buy/sell conviction | 10% | 1.000 | 10.0 |
This is a heuristic ordering under the current rules, not a calibrated return forecast. It explains why candidates rank differently; the public-filing evidence and data limits are shown below.
BULL VS BEAR
Two readings of this buying
The same filings, read two ways. Each line is a fact stored for this company with the number behind it, and appears only when that number crosses a fixed threshold. Neither side is a forecast and no winner is declared.
Since 2026-10-13: new on the bear side: thinly traded. All bull and bear lists, and what followed each line in the past →
Where the evidence comes from
The two kinds of evidence disagree: the purchases themselves carry bull lines (several insiders together, large purchases), while share price and trading argue against (price down over six months). No data is held for: company actions.
- The insider purchases themselvesBullseveral insiders together, large purchases Bearlatest purchase is old, buyer's past purchases trailed the benchmark3 checked, under the threshold · 2 missing
- Share price and tradingBearprice down over six months, thinly traded1 checked, under the threshold
- Short sellers1 checked, under the threshold
- Company results1 checked, under the threshold · 1 missing
- Company actions1 missing
Bull case · the buying is informative
- 7 insiders bought on the same day (2026-06-30). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.Record: after 5,401 earlier disclosures like this, the median 60-session excess return was −3.3%, within 1 percentage point of all comparable disclosures (−3.3%).
- Net purchases of €12.3M equal 8.6% of the company's market value (€143.6M): large for the size of the business.
Bear case · discount it
- The latest purchase was 109 days ago (2026-06-30). A reporting period has passed since, so what the buyers knew then may already be public.
- Share price and tradingThe share price is down 62% over six months (three months −22%, one month −22%) and stands 83% below its 52-week high. Insiders have bought into a fall the market has not reversed.Record (nearest stored case: price 20% or more below its prior 52-week high): after 11,077 earlier disclosures like this, the median 60-session excess return was −3.2%, within 1 percentage point of all comparable disclosures (−2.6%).
- The 7 earlier purchases by ROBELGA trailed BEL 20 by a median 23% over the following 60 trading days.
- Share price and tradingAbout €226k of the stock changes hands on an average day, below this site's €500k screening line. A position is hard to enter or leave at the quoted price.
Evidence still missing
- Only one reading of profitability is held (profit margin <0.01%). Whether earnings and cash flow are rising or falling needs the last two reports side by side.
- The next scheduled results are on 2026-11-05. They are the first hard test of either reading.
- European notifications have no field saying whether a purchase was pre-arranged; there is no counterpart to the US 10b5-1 box. None of the 14 purchase lines mentions a plan, but a bare “Purchase / Acquisition” does not rule one out.
- The filings give the size of each trade, not what the buyer already held. Whether a purchase added 1% to a personal stake or doubled it is not known.
Checked and under the threshold: 6, 1 close to it
- BearOver three months the share price changed −22% and the median of 271 Healthcare companies changed −6.3%: behind by 16 points. Counted for the bear side from 20 points behind. close to the threshold
- Either10 insiders bought in the last 180 days and 7 in the 180 days before. Bull when the number at least doubles and rises by two; bear when at least two bought before and no more buy now.
- Bear3 of 10 buyers filed as a person closely associated with a manager. Counted for the bear side from half.
- BearNo insider sale is recorded in the same 180 days.
- BearThe register of FSMA shows no published net short position in this company. Positions under 0.5% are never published, so this does not show that nobody is short.
- BearProfit margin on the latest captured figures is <0.01%. Counted for the bear side when negative.
Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.
Signal history
72.9 / 100
Latest recorded score
→ +0.0 ptsversus the comparable snapshot on 2026-09-14 (34 calendar days apart)
- Recorded snapshots
- 35
- First snapshot
- 2026-08-26
Only scores captured when the scoring run completed are compared. These are raw signal scores saved when each full scoring run completed. They describe changes in research ranking, not price performance or returns.
Why did it change?
No score factor changed beyond rounding between the comparable snapshots.
Signal score history
Fixed 0–100 scale; dates are spaced by calendar time.
Recent recorded points
- 73.7
- 73.0
- 72.9
- 72.9
- 72.9
View all recorded scores
| Snapshot date | Signal score |
|---|---|
| 2026-08-26 | 73.7 |
| 2026-08-27 | 73.6 |
| 2026-08-28 | 73.3 |
| 2026-08-31 | 73.3 |
| 2026-09-01 | 73.2 |
| 2026-09-02 | 73.2 |
| 2026-09-03 | 73.2 |
| 2026-09-04 | 73.2 |
| 2026-09-07 | 73.0 |
| 2026-09-08 | 73.0 |
| 2026-09-09 | 73.0 |
| 2026-09-10 | 73.0 |
| 2026-09-11 | 72.9 |
| 2026-09-14 | 72.9 |
| 2026-09-23 | 72.9 |
| 2026-09-24 | 72.9 |
| 2026-09-25 | 72.9 |
| 2026-09-28 | 72.9 |
| 2026-09-29 | 73.0 |
| 2026-09-30 | 73.0 |
| 2026-10-01 | 73.0 |
| 2026-10-02 | 73.0 |
| 2026-10-03 | 73.0 |
| 2026-10-04 | 73.0 |
| 2026-10-05 | 73.0 |
| 2026-10-06 | 73.0 |
| 2026-10-07 | 72.9 |
| 2026-10-08 | 72.9 |
| 2026-10-09 | 72.9 |
| 2026-10-12 | 72.9 |
| 2026-10-13 | 72.9 |
| 2026-10-14 | 72.9 |
| 2026-10-15 | 72.9 |
| 2026-10-16 | 72.9 |
| 2026-10-18 | 72.9 |
Sector context
- Buying breadth
- 6.1% (48 / 792 issuers)
- Sector rank
- #11 / 12
- 7D breadth change
- -0.4 pp · vs 2026-10-12 (6d)
- 30D breadth change
- History building
This is sector-level research context. It does not affect the Insider Signal or ranking.
Insider profile outcomes
Historical performance following insider filings. The company role is translated below each name while preserving the original title.
- Excess return = stock return − BEL 20 return over the same period.
- Hit rate = completed events with positive excess return ÷ total completed events.
- Price coverage = valid point-in-time prices ÷ events mature enough for that period.
- Returns start on the first shared trading session on or after publication.
- Small-sample rule: n<5 is shown for transparency and is not scored.
Events are disclosure-level observations; related disclosures published on the same date may share a return path and may not be statistically independent. This research enrichment does not affect the insider score or ranking.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 5Developing evidence | 100.0% (5/5) | 60.0% (3/5) | +0.7% | +0.4% | -6.3% |
| 20D | 5Developing evidence | 100.0% (5/5) | 40.0% (2/5) | -3.0% | -6.3% | -23.1% |
| 60D | 5Developing evidence | 100.0% (5/5) | 0.0% (0/5) | -18.4% | -16.8% | -27.7% |
| 120D | 2Small sample | 100.0% (2/2) | 0.0% (0/2) | -48.7% | -48.7% | -50.4% |
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 2Small sample | 100.0% (2/2) | 50.0% (1/2) | -2.8% | -2.8% | -6.3% |
| 20D | 2Small sample | 100.0% (2/2) | 0.0% (0/2) | -19.8% | -19.8% | -23.1% |
| 60D | 2Small sample | 100.0% (2/2) | 0.0% (0/2) | -25.5% | -25.5% | -27.7% |
| 120D | 1Small sample | 100.0% (1/1) | 0.0% (0/1) | -47.1% | -47.1% | -47.1% |
Market context
PRICE PERFORMANCE
VOLATILITY & LIQUIDITY
- Volatility
- 70.1%
- Beta
- 0.96
- Avg daily volume
- €224,020.0
VALUATION
- Market cap
- €143.6M
- P/E
- —
FUNDAMENTALS
- Profit margin
- 0.0%
- ROE
- -122.7%
- Industry
- Medical Devices
Prices to 16 Oct 2026: price cache (Yahoo Chart/risk profile). From OpenBB/yfinance, captured 16 Oct 2026: Market cap, Profit margin, ROE, Beta, Industry. It does not affect the insider score or rank.
Disclosed net short positions
The FSMA register, read 18 Oct 2026, publishes no net short position of 0.5% or more in this issuer. Positions below 0.5% are never published, so this is not evidence that nobody is short.
Short-position disclosures are external context; they do not affect the insider score, ranking, or filing eligibility.
Insiders' buying price vs the latest close
Insiders paid 1.72 EUR a share on average (12 purchase lines, 9 buyers, 2025-11-18 – 2026-06-09). The close on 2026-10-15 was 37.7% below that price.
The latest purchase (2026-06-09) was at 1.48 EUR; the close was 27.6% below that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored. 11 more purchase lines could not be compared with the share price and are left out.
Buying size vs market trading
0.00% · of estimated traded value in the same period
2026-09-18 – 2026-10-15 · 20 recorded trading sessions
- Disclosed qualifying purchases
- 0 EUR
- Estimated market traded value
- 4,519,206 EUR
Market-data coverage: 517 verified sessions · Latest session: 2026-10-15 · Ratio status: Available
Recent and largest purchase events / preceding 60-session ADTV
- Jun 30 · Gianello Pierre · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · Hambrecht Jürgen · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · Johnson-Mills Rita · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · Kirby Virginia · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · ROBELGA · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · Rakin Kevin · Member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 30 · Wildman Ventures LLC · Person closely associated to a member of administrative management or supervisory body3,559 EUR · 1.03%346,223 EUR ADTV
- Jun 09 · Taub Robert · Member of administrative management or supervisory body6,000,000 EUR · 1885.20%318,269 EUR ADTV
Traded value is estimated as close × shares traded, in major currency units. Includes disclosed qualifying purchases; disclosures may lag. Contractual or planned acquisitions are not necessarily discretionary. Ratios describe relative trading size, not market participation or score contributions.
Latest news
No news has been captured for this company.
Regulatory filings
The filing records held for this company carry no link to the original notice.
Filing evidence
These are underlying national-feed records from the 365-day window ending on the saved ranking snapshot. The score uses only the latest 180 days; older qualifying equity purchases remain visible for audit but do not enter the current score. The original filer, role, transaction classification, instrument, price, volume, value and source fields are retained. The first three rows are shown; remaining records can be unfolded for audit. Other transaction types are retained but excluded from the score.
Excluded transactions & classification
23 qualifying purchase disclosure(s) · 23 transaction line(s)
Jun 30, 2026Purchase / Acquisition
Kirby Virginia · Member of administrative management or supervisory body
Share · 20933 shares × 0.17 EUR · —
Jun 30, 2026Purchase / Acquisition
Wildman Ventures LLC · Person closely associated to a member of administrative management or supervisory body
Share · 20933 shares × 0.17 EUR · —
Jun 30, 2026Purchase / Acquisition
Rakin Kevin · Member of administrative management or supervisory body
Share · 20933 shares × 0.17 EUR · —
Unfold all 20 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Source |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | 2026-07-02 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 0.17 EUR | EUR | 20933 | — |
| 2026-06-30 | 2026-07-02 | Johnson-Mills Rita | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 0.17 EUR | EUR | 20933 | — |
| 2026-06-30 | 2026-07-02 | Hambrecht Jürgen | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 0.17 EUR | EUR | 20933 | — |
| 2026-06-30 | 2026-07-02 | Gianello Pierre | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 0.17 EUR | EUR | 20933 | — |
| 2026-06-10 | 2026-06-18 | Hambrecht Jürgen | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.72 USD | USD | 637164 | — |
| 2026-06-09 | 2026-06-19 | Kevin L. Rakin Irrevocable Trust UAD 05/05/10 | Person closely associated to a member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.72 USD | USD | 581395 | — |
| 2026-06-09 | 2026-06-18 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.48 EUR | EUR | 3040540 | — |
| 2026-06-09 | 2026-06-18 | Hambrecht Jürgen | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.48 EUR | EUR | 337837 | — |
| 2026-06-09 | 2026-06-18 | JH Capital GmbH | Person closely associated to a member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.48 EUR | EUR | 2027027 | — |
| 2026-06-09 | 2026-06-18 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.72 USD | USD | 3034883 | — |
| 2026-06-09 | 2026-06-18 | Taub Robert | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 1.48 EUR | EUR | 4054054 | — |
| 2025-12-30 | 2026-04-13 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.27 EUR | EUR | 567484 | — |
| 2025-12-01 | 2025-12-04 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.87 USD | USD | 70000 | — |
| 2025-11-20 | 2025-12-08 | Scott Holstine | Senior executive | Purchase / Acquisition | Share | 4.00 EUR | EUR | 18750 | — |
| 2025-11-20 | 2025-11-25 | Wildman Daniel | Person closely associated to a member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.00 EUR | EUR | 12500 | — |
| 2025-11-18 | 2025-11-25 | Moreau Loïc | Senior executive | Purchase / Acquisition | Share | 4.00 EUR | EUR | 12500 | — |
| 2025-11-18 | 2025-11-25 | Landry John | Senior executive | Purchase / Acquisition | Share | 4.00 EUR | EUR | 12500 | — |
| 2025-11-18 | 2025-11-25 | ROBELGA | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.00 EUR | EUR | 250000 | — |
| 2025-11-18 | 2025-11-25 | Hambrecht Jürgen | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.00 EUR | EUR | 50000 | — |
| 2025-11-18 | 2025-11-25 | Taelman Olivier | Member of administrative management or supervisory body | Purchase / Acquisition | Share | 4.00 EUR | EUR | 12500 | — |
Showing 23 of 23 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level € aggregate is separately FX-normalised for research ranking, not a trade-date conversion.
Other disclosed transactions · excluded from score
View 1 other transaction(s)
Dec 30, 2025Sale / Disposal
BMI Estate · Person closely associated to a member of administrative management or supervisory body
Share · 567484 shares × 4.27 EUR · —
Showing 1 of 1 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level € aggregate is separately FX-normalised for research ranking, not a trade-date conversion.
Snapshot & identity
- Snapshot date
- 2026-10-18
- Ticker
- NYXH.BR
- ISIN
- BE0974358906
- Sector
- Healthcare
- Industry
- Medical Instruments & Supplies
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