| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 8Developing evidence | 100.0% (8/8) | 62.5% (5/8) | +5.0% | +8.4% | -4.3% |
| 20D | 8Developing evidence | 100.0% (8/8) | 37.5% (3/8) | -6.7% | -1.6% | -10.0% |
| 60D | 7Developing evidence | 100.0% (7/7) | 14.3% (1/7) | -15.0% | -16.4% | -36.8% |
| 120D | 7Developing evidence | 100.0% (7/7) | 28.6% (2/7) | -5.1% | -12.3% | -41.5% |
COMPANY RESEARCH
Mendus AB
IMMU.ST · Sweden · Healthcare · Biotechnology
INSIDER SIGNAL
Insider activity score：64.1 / 100
6 insiders · 8 purchase events · €126k net purchases
Europe #199 · Sweden #55
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+19.1 / 25
Purchase value relative to company size and liquidity
Role+20.0 / 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 · ceo/chair involved
The role contribution uses the inverted role input of the current European model.
Buying concentration
48%
Largest buyer：Erik Manting · 982k SEK
Gross qualified purchase transaction-line value：2.04m SEK
The headline € total is net buying for the screen; this module uses gross qualified purchase transaction-line values in the filing currency, so the amounts can differ. The current 15-day buyer-breadth input counts distinct buyers; value concentration is disclosed separately here.
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 |
|---|---|---|
| Sven Arne Andreasson | 6.5 SEK | Jul 24, 2026 |
| Johannes Preusting | 6.5 SEK | Jul 24, 2026 |
| Erik Manting | 5.62 SEK | Jun 12, 2026 |
Model details
Cluster breakdown (does not change the score)
- 15-day buyer breadth (count)
- 4 distinct reported filers
- Peak time window
- 2026-07-23 to 2026-07-24
- 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
Sven Arne Andreasson · 134k SEK · Price 6.5 SEK · Jul 24, 2026 - 🟢 Eligible purchase
Johannes Preusting · 60k SEK · Price 6.5 SEK · Jul 24, 2026 - 🟢 Large eligible purchase
Erik Manting · 982k SEK · Price 5.62 SEK · Jun 12, 2026 - 🟡 6 remaining qualified transaction line(s) across 6 disclosure(s)
- 🔴 1 other transaction line(s) are not counted as discretionary-buying evidence; 0 have zero price
Insider vs stock price
5 purchase day(s), 9 purchase line(s) in the 180-day window.
Daily close (SEK)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 |
|---|---|---|---|---|
| 2026-05-13 | 1 | 962 −3.8% | 920 −8.0% | +42 +4.2 pts |
| 2026-06-15 | 1 | 1,081 +8.1% | 952 −4.8% | +129 +12.9 pts |
| 2026-06-16 | 1 | 1,027 +2.7% | 957 −4.3% | +70 +7.0 pts |
| 2026-06-17 | 1 | 1,045 +4.5% | 957 −4.3% | +88 +8.8 pts |
| 2026-07-23 | 1 | 852 −14.8% | 950 −5.0% | −98 −9.8 pts |
| 2026-07-24 | 2 | 883 −11.7% | 949 −5.1% | −66 −6.6 pts |
| 2026-07-27 | 1 | 870 −13.0% | 945 −5.5% | −75 −7.5 pts |
4 of 7 disclosure day(s) ended ahead of the median peer stock.
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 (277 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
4 insiders bought within 2 days, 23 Jul to 24 Jul: 3 Board member, 1 CEO / chair. The share closed at 6.75 on the first of those days and at 5.75 most recently (−14.8%). That week 167 companies across Europe disclosed insider purchases, an ordinary week (19 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 23 Jul – 24 Jul, with 4 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, +10.6% over these six months
The closing price of each day, from 5.20 on 2026-04-21 to 5.75 on 2026-10-09. 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, −9.2%
Taken from the 457 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 +10.6%, the typical one −9.2%, 19.8 points ahead. 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: 167 companies, number 19 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
Nov
5Dec
Jan
Feb
Mar
4Apr
1May
2Jun
4Jul
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 |
|---|---|---|---|---|---|---|---|
| Ann-Charlotte Ferm | CFO | 2 | — | 362.8k SEK | 2026-06-11 | +12.7% | fewer than 5 completed |
| Erik Manting | CEO / chair | 1 | — | 982.4k SEK | 2026-06-12 | +12.7% | 5 completed, median −4.0% against peers after 60 sessions |
| Sven Arne Andreasson | CEO / chair | 1 | — | 134.2k SEK | 2026-07-24 | −11.7% | 7 completed, median −15.0% against peers after 60 sessions |
| Sijmen de Vries | Board member | 2 | — | 433.2k SEK | 2026-05-08 | +11.9% | fewer than 5 completed |
| Dharminder Chahal | Board member | 1 | — | 69.4k SEK | 2026-07-23 | −14.8% | 6 completed, median −25.8% against peers after 60 sessions |
| Johannes Preusting | Board member | 1 | — | 59.7k SEK | 2026-07-24 | −11.7% | 5 completed, median −15.0% against peers after 60 sessions |
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% | 0.762 | 19.1 |
| Role informativeness (inverted) | 20% | 0.000 | 0.0 |
| Recency | 10% | 0.003 | 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 bull side: large purchases; no longer on the bear side: thinly traded. All bull and bear lists, and what followed each line in the past →
Where the evidence comes from
Independent evidence does not object: the purchases themselves carry bull lines (several insiders together, large purchases, senior executive buying); share price and trading, short sellers, company results were checked and none crosses a bear threshold. No data is held for: company actions.
- The insider purchases themselvesBullseveral insiders together, large purchases, senior executive buying Bearbuyer's past purchases trailed the benchmark5 checked, under the threshold · 2 missing
- Share price and trading2 checked, under the threshold
- Short sellers1 checked, under the threshold
- Company results1 checked, under the threshold · 1 missing
- Company actionsno data held
Bull case · the buying is informative
- 4 insiders bought within 15 days (2026-07-23 to 2026-07-24). 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 €126k equal 0.43% of the company's market value (€29.1M): large for the size of the business.
- The buyers include the CEO or chair, who sees more of the business than most filers. This site's score gives little or no credit for that: in its backtests purchases by senior executives did no better than other insiders' purchases.Record: after 8,797 earlier disclosures like this, the median 60-session excess return was −3.1%, within 1 percentage point of all comparable disclosures (−3.2%).
Bear case · discount it
- The 7 earlier purchases by Sven Arne Andreasson trailed OMX Stockholm 30 by a median 15% over the following 60 trading days.
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.
- 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 9 purchase lines mentions a plan, but a bare “Förvärv” 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: 9, 1 close to it
- EitherThe latest purchase is 85 days old. Bull up to 14 days, bear from 90. close to the threshold
- Either6 insiders bought in the last 180 days and 5 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.
- BearThe largest buyer accounts for 48% of the value bought. Counted for the bear side from 80%.
- Bear0 of 6 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 share price changed +8.5% over six months (three months −7.0%, one month −17%) and stands 32% below its 52-week high. Counted for the bear side from a fall of 20%.
- BearOver three months the share price changed −7.0% and the median of 271 Healthcare companies changed −6.3%: behind by 1 points. Counted for the bear side from 20 points behind.
- BearThe register of Finansinspektionen 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
64.1 / 100
Latest recorded score
↓ -0.5 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?
Decomposition across the five score factors between comparable snapshots; historical scores are not recalculated.
- Purchase size-0.3 pts
- Recency-0.2 pts
Signal score history
Fixed 0–100 scale; dates are spaced by calendar time.
Recent recorded points
- 67.3
- 64.8
- 64.4
- 64.2
- 64.1
View all recorded scores
| Snapshot date | Signal score |
|---|---|
| 2026-08-26 | 67.3 |
| 2026-08-27 | 67.3 |
| 2026-08-28 | 65.3 |
| 2026-08-31 | 65.1 |
| 2026-09-01 | 65.0 |
| 2026-09-02 | 65.0 |
| 2026-09-03 | 65.0 |
| 2026-09-04 | 64.9 |
| 2026-09-07 | 64.8 |
| 2026-09-08 | 64.8 |
| 2026-09-09 | 64.7 |
| 2026-09-10 | 64.7 |
| 2026-09-11 | 64.7 |
| 2026-09-14 | 64.6 |
| 2026-09-23 | 64.5 |
| 2026-09-24 | 64.5 |
| 2026-09-25 | 64.5 |
| 2026-09-28 | 64.4 |
| 2026-09-29 | 64.4 |
| 2026-09-30 | 64.4 |
| 2026-10-01 | 64.4 |
| 2026-10-02 | 64.4 |
| 2026-10-03 | 64.4 |
| 2026-10-04 | 64.4 |
| 2026-10-05 | 64.4 |
| 2026-10-06 | 64.3 |
| 2026-10-07 | 64.2 |
| 2026-10-08 | 64.1 |
| 2026-10-09 | 64.1 |
| 2026-10-12 | 64.1 |
| 2026-10-13 | 64.1 |
| 2026-10-14 | 64.1 |
| 2026-10-15 | 64.1 |
| 2026-10-16 | 64.1 |
| 2026-10-18 | 64.1 |
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 − OMX Stockholm 30 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 | 6Developing evidence | 100.0% (6/6) | 50.0% (3/6) | -1.1% | -0.8% | -5.7% |
| 20D | 6Developing evidence | 100.0% (6/6) | 33.3% (2/6) | -11.3% | -9.3% | -28.7% |
| 60D | 6Developing evidence | 100.0% (6/6) | 16.7% (1/6) | -25.8% | -22.6% | -48.4% |
| 120D | 5Developing evidence | 100.0% (5/5) | 40.0% (2/5) | -9.4% | -15.9% | -54.9% |
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 5Developing evidence | 100.0% (5/5) | 80.0% (4/5) | +1.5% | +3.4% | -5.4% |
| 20D | 5Developing evidence | 100.0% (5/5) | 20.0% (1/5) | -6.3% | -6.8% | -17.1% |
| 60D | 5Developing evidence | 100.0% (5/5) | 40.0% (2/5) | -4.0% | +2.9% | -28.2% |
| 120D | 4Small sample | 100.0% (4/4) | 50.0% (2/4) | +3.4% | -6.6% | -47.0% |
Market context
PRICE PERFORMANCE
VOLATILITY & LIQUIDITY
- Volatility
- 83.9%
- Beta
- 0.74
- Avg daily volume
- SEK 124,435.8
VALUATION
- Market cap
- SEK 324.4M
- P/E
- —
FUNDAMENTALS
- Profit margin
- 0.0%
- ROE
- -17.9%
- Industry
- Biotechnology
Prices to 11 Oct 2026: OpenBB/yfinance; volume from price cache (yfinance). From OpenBB/yfinance, captured 15 Oct 2026: Market cap, Profit margin, ROE, Beta, Industry. It does not affect the insider score or rank.
Disclosed net short positions
The Finansinspektionen 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
The latest close in the price history is more than a week old.
Buying size vs market trading
Market history is too old for this snapshot; ratios are withheld.
Market-data coverage: 500 verified sessions · Latest session: 2026-10-09 · Ratio status: Unavailable
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
24 qualifying purchase disclosure(s) · 24 transaction line(s)
Jul 24, 2026Förvärv
Sven Arne Andreasson · Styrelseordförande
Aktie · 20641.0 shares × 6.50 SEK · —
Jul 24, 2026Förvärv
Johannes Preusting · Styrelseledamot
Aktie · 9185.0 shares × 6.5 SEK · —
Jul 23, 2026Förvärv
Dharminder Chahal · Styrelseledamot
Aktie · 10673.0 shares × 6.5 SEK · —
Unfold all 21 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Source |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07-23 | 2026-07-23 | Sijmen de Vries | Styrelseledamot | Förvärv | Aktie | 6.50 SEK | SEK | 9300.0 | — |
| 2026-06-12 | 2026-06-17 | Erik Manting | Verkställande direktör (VD) | Förvärv | Aktie | 5.62 SEK | SEK | 174804.0 | — |
| 2026-06-12 | 2026-06-16 | Ann-Charlotte Ferm | Ekonomichef/finanschef/finansdirektör | Förvärv | Aktie | 5.62 SEK | SEK | 60228.0 | — |
| 2026-06-12 | 2026-06-15 | Ann-Charlotte Ferm | Ekonomichef/finanschef/finansdirektör | Förvärv | Aktie | 5.10 SEK | SEK | 2500.0 | — |
| 2026-06-11 | 2026-06-15 | Ann-Charlotte Ferm | Ekonomichef/finanschef/finansdirektör | Förvärv | Aktie | 5.10 SEK | SEK | 2272.0 | — |
| 2026-05-08 | 2026-05-13 | Sijmen de Vries | Styrelseledamot | Förvärv | Aktie | 5.15 SEK | SEK | 72388.0 | — |
| 2026-04-10 | 2026-04-13 | Helen Tuvesson Andersson | Styrelseledamot | Förvärv | Aktie | 4.2522 SEK | SEK | 15654.0 | — |
| 2026-04-10 | 2026-04-12 | Dharminder Chahal | Styrelseledamot | Förvärv | Aktie | 4.2522 SEK | SEK | 16315.0 | — |
| 2026-04-09 | 2026-04-10 | Johannes Preusting | Styrelseledamot | Förvärv | Aktie | 4.2522 SEK | SEK | 22488.0 | — |
| 2026-04-08 | 2026-04-12 | Sven Arne Andreasson | Styrelseordförande | Förvärv | Aktie | 4.2522 SEK | SEK | 32189.0 | — |
| 2025-12-30 | 2025-12-30 | Helen Tuvesson Andersson | Styrelseledamot | Förvärv | Aktie | 5.123 SEK | SEK | 12993.0 | — |
| 2025-12-29 | 2026-01-02 | Dharminder Chahal | Styrelseledamot | Förvärv | Aktie | 5.123 SEK | SEK | 13542.0 | — |
| 2025-12-29 | 2025-12-29 | Sven Arne Andreasson | Styrelseordförande | Förvärv | Aktie | 5.123 SEK | SEK | 26718.0 | — |
| 2025-12-29 | 2025-12-29 | Johannes Preusting | Styrelseledamot | Förvärv | Aktie | 5.123 SEK | SEK | 12078.0 | — |
| 2025-12-17 | 2025-12-17 | Sven Arne Andreasson | Styrelseordförande | Förvärv | Aktie | 5.00 SEK | SEK | 55000.0 | — |
| 2025-12-16 | 2025-12-19 | Dharminder Chahal | Styrelseledamot | Förvärv | Aktie | 5.0 SEK | SEK | 55000.0 | — |
| 2025-12-16 | 2025-12-19 | Erik Manting | Verkställande direktör (VD) | Förvärv | Aktie | 5.0 SEK | SEK | 200000.0 | — |
| 2025-10-24 | 2025-10-28 | Dharminder Chahal | Styrelseledamot | Förvärv | Aktie | 6.7769 SEK | SEK | 10237.0 | — |
| 2025-10-24 | 2025-10-28 | Helen Tuvesson Andersson | Styrelseledamot | Förvärv | Aktie | 6.7768 SEK | SEK | 9822.0 | — |
| 2025-10-24 | 2025-10-24 | Johannes Preusting | Styrelseledamot | Förvärv | Aktie | 6.7768 SEK | SEK | 9130.0 | — |
| 2025-10-23 | 2025-10-24 | Sven Arne Andreasson | Styrelseordförande | Förvärv | Aktie | 6.7768 SEK | SEK | 20198.0 | — |
Showing 24 of 24 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)
Jul 27, 2026Tilldelning
Helen Tuvesson Andersson · Styrelseledamot
Aktie · 10240.0 shares × 6.50 SEK · —
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
- IMMU.ST
- ISIN
- SE0005003654
- Sector
- Healthcare
- Industry
- Biotechnology
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