Tracking European insider disclosures is harder than it looks
Under MAR Article 19, company directors and executives across the EU (and the UK post-Brexit under its own rules) must publicly disclose share transactions within 3 business days. The data is public — but it is scattered across more than a dozen national regulators, published in different formats, and rarely aggregated in one place.
15 regulatory sources
Each EU member state maintains its own disclosure database. BaFin for Germany, AMF for France, AFM for the Netherlands, FSMA for Belgium — none of them use the same format.
3-day disclosure window
European insiders have up to 3 business days to report a transaction. Acting quickly on fresh data matters — stale aggregators can lag by days or weeks.
Signal extraction is non-trivial
Raw regulatory filings contain noise: option exercises, inheritance, DRIP purchases. Meaningful signal requires filtering and classifying each transaction type.
Proven alpha source
Academic research (Jeng, Metrick & Zeckhauser 2003) shows insider purchase portfolios generate significant abnormal returns. European data has historically been under-covered by retail tools.
Insider buy signals tracked on InsidersAlpha have averaged +8.4% returns at 30 days across 1,092 tracked signals.
Past performance does not guarantee future results.
How the main trackers compare (2026)
The table below covers the major platforms offering European insider transaction data. Features marked ❌ are confirmed absent; — indicates the feature was not confirmed present or absent.
| Feature | InsidersAlpha | InsiderScreener | InsiderPulse | OpenInsider | SmartInsider |
|---|---|---|---|---|---|
| Primary focus | Europe + Korea | Multi-market | Europe (8 markets) | US only | Global (institutional) |
| European markets covered | 15 | 12 EU incl. Greece | 8 | ❌ | — |
| Norway coverage | ✅ | ❌ | ✅ | ❌ | — |
| Belgium coverage | ✅ | ✅ | ❌ | ❌ | — |
| Switzerland coverage | ✅ | ✅ | ❌ | ❌ | — |
| South Korea | ✅ | ❌ | ❌ | ❌ | — |
| Active buyback tracking | ✅ 1,750+ programs | ❌ | ❌ | ❌ | ✅ |
| Cluster buying signals | ✅ | ✅ | ✅ | ❌ | — |
| Price dip signals | ✅ | — | ✅ | ❌ | — |
| Pre-earnings signals | ✅ | — | — | ❌ | — |
| Conviction scoring | ✅ | ❌ | ❌ | ❌ | — |
| Insider performance (30/90/180d) | ✅ | ✅ Partial | ❌ | ❌ | — |
| 180-day history | ✅ | — | ✅ | ✅ | — |
| Free tier | ✅ | ✅ | ✅ | ✅ | ❌ |
| Pro pricing | €9.99/mo | €25/mo | €9.99/mo | Free | Enterprise |
— = not confirmed present or absent. ❌ = confirmed absent. Data as of May 2026. InsiderScreener API: Starter from €42/mo. SmartInsider pricing is enterprise/custom; no self-serve plans published.
Four features you won't find elsewhere
Most insider tracking tools stop at displaying raw transactions. InsidersAlpha adds a layer of intelligence designed for investors who want actionable signal, not just raw data.
Conviction Scoring
Every transaction receives a conviction score based on transaction size relative to the insider's net position, role seniority, and timing relative to earnings. Quickly filter for the trades that matter most.
Active Buyback Tracking
InsidersAlpha monitors 1,750+ active share buyback programs across covered markets — the only European insider tracker to combine insider signals with corporate buyback data in a single feed.
Pre-Earnings Insider Buying
Insider purchases filed within 30 days before a scheduled earnings date are flagged with a pre-earnings badge. Research suggests these are among the highest-confidence insider signals available.
South Korea via DART
InsidersAlpha is the only non-Korean platform aggregating major-holder and executive disclosures from South Korea's DART system, covering KOSPI and KOSDAQ-listed companies alongside European markets.
16 markets, all updated daily
Every market links through to a dedicated transaction feed sourced directly from its national regulator. Click any market to browse recent insider trades.
South Korea — exclusively via DART
InsidersAlpha aggregates insider and major-holder disclosures from South Korea's DART (Data Analysis, Retrieval and Transfer System), covering KOSPI and KOSDAQ listed companies. No other European-focused insider tracker includes Korean disclosures. Browse South Korea transactions →
Frequently asked questions
What is the best insider trading tracker for European stocks?
InsidersAlpha covers 16 European markets including Poland and South Korea, tracking real-time MAR Art.19 disclosures from official regulators including BaFin, AMF, AFM, and 10 others. It uniquely combines insider signals with active buyback tracking across 1,750+ programs — a combination not available on any other platform.
Do European insider trading trackers cover Nordic stocks?
Nordic coverage varies widely by platform. InsidersAlpha covers all 4 Nordic markets — Sweden (Finansinspektionen), Denmark (Nasdaq Copenhagen), Norway (Oslo Bors), and Finland (FIN-FSA) — with daily updates. InsiderScreener covers Nordic markets but does not include Norway. InsiderPulse includes Sweden, Denmark, Norway, and Finland.
What is the difference between US and European insider trading rules?
US insiders file Form 4 with the SEC within 2 business days of a transaction, and the data flows into a single centralised EDGAR database. European insiders disclose under MAR Article 19 within 3 business days to their national regulator — but the data is spread across 15+ separate regulatory systems, each with its own format. That fragmentation is the core problem that aggregators like InsidersAlpha solve.
Is there a free European insider trading tracker?
Yes. InsidersAlpha offers a free tier showing the 50 most recent transactions with full data including price, value, and signal badges. No account or credit card is required to use the free tier. InsiderScreener and InsiderPulse also offer free tiers, though with different data limits.
Start tracking European insiders today
Free tier includes 50 recent transactions, full signal badges, and market filters — no account required.
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