| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 4Small sample | 100.0% (4/4) | 100.0% (4/4) | +5.8% | +7.9% | +2.2% |
| 20D | 4Small sample | 100.0% (4/4) | 75.0% (3/4) | +11.5% | +9.4% | -3.5% |
| 60D | 4Small sample | 100.0% (4/4) | 100.0% (4/4) | +5.4% | +9.9% | +0.6% |
| 120D | 3Small sample | 100.0% (3/3) | 33.3% (1/3) | -1.3% | +24.7% | -3.3% |
COMPANY RESEARCH
Dialight plc
DIA.L · United Kingdom · Industrials · Electrical Equipment & Parts
INSIDER SIGNAL
Insider activity score：58.7 / 100
3 insiders · 4 purchase events · €120k net purchases
Europe #323 · United Kingdom #92
WHY THIS SIGNAL?
Score anatomy
Each bar shows the contribution to the current score; the weights and formula stay unchanged.
Cluster+29.8 / 35
How many distinct insiders bought in the cluster
Purchase size+18.9 / 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
59%
Largest buyer：Stephen Blair · 59k GBP
Gross qualified purchase transaction-line value：100k GBP
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 |
|---|---|---|
| Stephen Blair | 4.4 GBP | Jul 22, 2026 |
| Stephen Blair | 3.9 GBP | Jun 29, 2026 |
| Neil Johnson | 4.14 GBP | Jun 29, 2026 |
Model details
Cluster breakdown (does not change the score)
- 15-day buyer breadth (count)
- 3 distinct reported filers
- Peak time window
- 2026-06-25 to 2026-06-29
- Current breadth input
- 0.850 (capped at 4+ buyers)
- Buyer independence
- Not yet measured; related-party fields are not cross-market comparable
What the filings show
- 🟢 Recent eligible purchase
Stephen Blair · 30k GBP · Price 4.4 GBP · Jul 22, 2026 - 🟢 Eligible purchase
Stephen Blair · 30k GBP · Price 3.9 GBP · Jun 29, 2026 - 🟢 Large eligible purchase
Neil Johnson · 21k GBP · Price 4.14 GBP · Jun 29, 2026 - 🟡 1 remaining qualified transaction line(s) across 1 disclosure(s)
- 🔴 4 other transaction line(s) are not counted as discretionary-buying evidence; 0 have zero price
Insider vs stock price
No daily prices and volumes have been captured for this stock yet.
Insider timeline
3 insiders bought within 5 days, 25 Jun to 29 Jun: 2 CEO / chair, 1 Associated person. 1 of them bought again later. That week 188 companies across Europe disclosed insider purchases, an ordinary week (12 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 25 Jun – 29 Jun, with 3 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.
▂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: 188 companies, number 12 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
1Nov
Dec
Jan
Feb
1Mar
Apr
May
3Jun
1Jul
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 |
|---|---|---|---|---|---|---|---|
| Neil Johnson | CEO / chair | 1 | — | 21.0k GBP | 2026-06-29 | — | fewer than 5 completed |
| Stephen Blair | CEO / chair | 2 | — | 59.4k GBP | 2026-06-29 | — | fewer than 5 completed |
| Heather Fryer | Associated person | 1 | — | 19.9k GBP | 2026-06-25 | — | 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% | 0.850 | 29.8 |
| Qualified-buy size | 25% | 0.758 | 18.9 |
| Role informativeness (inverted) | 20% | 0.000 | 0.0 |
| Recency | 10% | 0.002 | 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.
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, senior executive buying); share price and trading, short sellers, company results, company actions were checked and none crosses a bear threshold.
- The insider purchases themselvesBullseveral insiders together, senior executive buying Bearlatest purchase is old5 checked, under the threshold · 3 missing
- Share price and trading2 checked, under the threshold
- Short sellers1 checked, under the threshold
- Company results1 checked, under the threshold · 1 missing
- Company actions1 checked, under the threshold
Bull case · the buying is informative
- 3 insiders bought within 15 days (2026-06-25 to 2026-06-29). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.Record: after 5,334 earlier disclosures like this, the median 60-session excess return was −3.3%, within 1 percentage point of all comparable disclosures (−3.3%).
- 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 8,738 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 latest purchase was 93 days ago (2026-07-22). A reporting period has passed since, so what the buyers knew then may already be public.
Evidence still missing
- No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
- Only one reading of profitability is held (profit margin 0.24%). 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 4 purchase lines mentions a plan, but a bare “Purchase of Ordinary Shares” 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: 10
- Either3 insiders bought in the last 180 days and 2 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 59% of the value bought. Counted for the bear side from 80%.
- Bear0 of 3 buyers filed as a person closely associated with a manager. Counted for the bear side from half.
- EitherNet purchases equal 0.04% of the company's market value. Bull from 0.10%, bear below 0.01%.
- BearNo insider sale is recorded in the same 180 days.
- BearThe share price changed +99% over six months (three months +37%, one month +6.3%) and stands 8.3% below its 52-week high. Counted for the bear side from a fall of 20%.
- BearOver three months the share price changed +37% and the median of 527 Industrials companies changed +<0.01%: ahead by 37 points. Counted for the bear side from 20 points behind.
- BearThe register of FCA shows no published net short position in this company.
- BullThe company announced no transaction in its own shares in the last 30 days.
- BearProfit margin on the latest captured figures is 0.24%. 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
58.7 / 100
Latest recorded score
→ +0.0 ptssince the first recorded snapshot on 2026-10-21; 2 calendar days observed
- Recorded snapshots
- 3
- First snapshot
- 2026-10-21
There is not yet a 30-calendar-day comparison; earlier scores are not reconstructed. 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?
Less than 30 days of comparable history is available, so factor movement is not yet decomposed.
Signal score history
Fixed 0–100 scale; dates are spaced by calendar time.
Recent recorded points
- 58.7
- 58.7
- 58.7
View all recorded scores
| Snapshot date | Signal score |
|---|---|
| 2026-10-21 | 58.7 |
| 2026-10-22 | 58.7 |
| 2026-10-23 | 58.7 |
Sector context
- Buying breadth
- 8.4% (88 / 1,049 issuers)
- Sector rank
- #8 / 12
- 7D breadth change
- +0.3 pp · vs 2026-10-16 (7d)
- 30D breadth change
- -1.5 pp · vs 2026-09-23 (30d)
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 − FTSE 100 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 | 3Small sample | 100.0% (3/3) | 100.0% (3/3) | +7.4% | +5.5% | +1.5% |
| 20D | 3Small sample | 100.0% (3/3) | 66.7% (2/3) | +14.1% | +12.7% | -1.0% |
| 60D | 3Small sample | 100.0% (3/3) | 100.0% (3/3) | +28.3% | +20.8% | +5.7% |
| 120D | 1Small sample | 100.0% (1/1) | 100.0% (1/1) | +53.7% | +53.7% | +53.7% |
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +3.3% | +3.3% | +2.9% |
| 20D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +6.2% | +6.2% | +4.3% |
| 60D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +25.3% | +25.3% | +5.4% |
| 120D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +76.6% | +76.6% | +61.3% |
Market context
PRICE PERFORMANCE
VOLATILITY & LIQUIDITY
- Volatility
- —
- Beta
- 0.66
- Avg daily volume
- £915,489.8
VALUATION
- Market cap
- £230.7M
- P/E
- 574.0×
FUNDAMENTALS
- Profit margin
- 0.2%
- ROE
- 1.1%
- Industry
- Electrical Equipment & Parts
Prices to 26 Sep 2026: OpenBB/yfinance. From OpenBB/yfinance, captured 26 Sep 2026: Market cap, P/E, Profit margin, ROE, Beta, Industry. It does not affect the insider score or rank.
Disclosed net short positions
The FCA register, read 23 Oct 2026, publishes no aggregate net short position for this issuer.
Short-position disclosures are external context; they do not affect the insider score, ranking, or filing eligibility.
Insiders and institutions
Insiders, ranking window: €119.8k net bought · buyers: 3 · last 2026-07-22
Short sellers
Nothing at or above the publication threshold is on the FCA register (read 2026-10-23).
Source: FCA, read 2026-10-23. Where holders are named, only positions of 0.5% of issued capital or more are published, so these are lower bounds and a change is a change in what was published. Context only; not part of the score. All companies where insiders buy and short sellers hold positions →
Major holders (3% and above)
| Holder | Voting rights | Notified | Change |
|---|---|---|---|
| Aberforth Partners LLP | 24.90% | 2026-10-09 | +1.11 pp |
| Odyssean Investment Trust PLC | 22.39% | 2025-07-31 | +5.21 pp |
| Schroders Plc · large asset manager | 12.99% | 2026-10-13 | −0.92 pp |
| Lombard Odier Asset Management (Europe) Limited | 8.85% | 2026-07-22 | — |
| Blackmoor Investment Partners Limited | 6.05% | 2026-06-22 | +1.05 pp |
Holders that notified a higher stake in the last 12 months: 2; a lower one: 3 (banks and brokers left out).
Source: FCA (TR-1). A holder must notify when its voting rights cross 3% and every whole percent above it; within a percent a holding can change without a notice. Banks and brokers often hold shares to hedge clients' trades; the largest asset managers' stakes are mostly index money. Context only; not part of the score.
Insiders' buying price vs the latest close
No daily prices have been captured for this stock yet.
Buying size vs market trading
Complete price and volume history is not yet available.
Market-data coverage: 0 verified sessions · Latest session: — · 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
- Insider filing announcement · published 2026-07-22 · trade date 2026-07-22
- Insider filing announcement · published 2026-07-03 · trade date 2026-07-03
- Insider filing announcement · published 2026-07-03 · trade date 2026-07-03
Unfold all 9 filings
- Insider filing announcement · published 2026-07-22 · trade date 2026-07-22
- Insider filing announcement · published 2026-07-03 · trade date 2026-07-03
- Insider filing announcement · published 2026-07-03 · trade date 2026-07-03
- Insider filing announcement · published 2026-06-29 · trade date 2026-06-29
- Insider filing announcement · published 2026-06-29 · trade date 2026-06-29
- Insider filing announcement · published 2026-06-25 · trade date 2026-06-25
- Insider filing announcement · published 2026-03-30 · trade date 2026-03-30
- Insider filing announcement · published 2026-03-25 · trade date 2026-03-24
- Insider filing announcement · published 2025-11-11 · trade date 2025-11-11
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
6 qualifying purchase disclosure(s) · 6 transaction line(s)
Jul 22, 2026Purchase of Ordinary Shares
Stephen Blair · CEO
Identification code: · 6750 shares × 4.4 GBP · —
Open filingJun 29, 2026Purchase of Ordinary Shares
Neil Johnson · Chair
Identification code: · 5070 shares × 4.14 GBP · —
Open filingJun 29, 2026Purchase of Ordinary Shares
Stephen Blair · CEO
Identification code: · 7615 shares × 3.9 GBP · —
Open filingUnfold all 3 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Source |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-25 | 2026-06-25 | Heather Fryer | PCA of Mark Fryer, CFO | Purchase of Ordinary Shares | Identification code: | 3.57 GBP | GBP | 5573 | Open filing |
| 2026-03-30 | 2026-03-30 | Mark Fryer | CFO | Purchase of Ordinary Shares | Identification code: | 2.92 GBP | GBP | 5110 | Open filing |
| 2025-11-11 | 2025-11-11 | Neil Johnson | Chair | Purchase of Ordinary Shares | Identification code: | 2.7 GBP | GBP | 14360 | Open filing |
Showing 6 of 6 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 7 other transaction(s)
Jul 3, 2026Grant of a nil-cost option over 17,240 ordinary shares under the Dialight Plc 2022 Annual Performance Bonus Plan.
Steve Blair · CEO
Identification code: · — shares × — · —
Open filingJul 3, 2026Grant of a nil-cost option over 8,979 ordinary shares under the Dialight Plc 2022 Annual Performance Bonus Plan.
Mark Fryer · CFO
Identification code: · — shares × — · —
Open filingJul 3, 2026Grant of a nil-cost option over 86,203 ordinary shares under the Dialight Plc 2023 Restricted Share Plan.
Steve Blair · CEO
Identification code: · — shares × — · —
Open filingUnfold all 4 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Source |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07-03 | 2026-07-03 | Mark Fryer | CFO | Grant of a nil-cost option over 50,287 ordinary shares under the Dialight Plc 2023 Restricted Share Plan. | Identification code: | — | GBP | — | Open filing |
| 2026-03-24 | 2026-03-25 | Neil Johnson | Director - Group C hair | Grant of VCP Units awards entitling recipient to the issue of share options in Dialight plc under the Dialight PLC 2024 Value Creation Plan. | V CP U nits entitling recipient to the grant of options over o rdinary shares of 1.89 pence each in Dialight plc in the event that certain performance conditions are met. | — | GBP | 15 | Open filing |
| 2026-03-24 | 2026-03-25 | Steve Blair | Director - Group CEO | Grant of VCP Units awards entitling recipient to the issue of share options in Dialight plc under the Dialight PLC 2024 Value Creation Plan. | V CP U nits entitling recipient to the grant of options over o rdinary shares of 1.89 pence each in Dialight plc in the event that certain performance conditions are met. | — | GBP | 15 | Open filing |
| 2026-03-24 | 2026-03-25 | Mark Fryer | Director - Group C FO | Grant of VCP Units awards entitling recipient to the issue of share options in Dialight plc under the Dialight PLC 2024 Value Creation Plan. | V CP U nits entitling recipient to the grant of options over o rdinary shares of 1.89 pence each in Dialight plc in the event that certain performance conditions are met. | — | GBP | 80 | Open filing |
Showing 7 of 7 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.
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Snapshot & identity
- Snapshot date
- 2026-10-23
- Ticker
- DIA.L
- ISIN
- GB0033057794
- Sector
- Industrials
- Industry
- Electrical Equipment & Parts
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