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.
16 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 buys with a detected signal (cluster, price dip, pre-blackout, or repetitive buying) have averaged +3.2% returns over 90 days across 1,452 tracked signals. See the full study →
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 | 16 | 12 EU incl. Greece | 8 | ❌ | — |
| Norway coverage | ✅ | ❌ | ✅ | ❌ | — |
| Belgium coverage | ✅ | ✅ | ❌ | ❌ | — |
| Switzerland coverage | ✅ | ✅ | ❌ | ❌ | — |
| South Korea | ✅ | ❌ | ❌ | ❌ | — |
| Singapore | ✅ | ❌ | ❌ | ❌ | — |
| 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 plan | ✅ 3 stocks + alerts | ❌ paid only | ✅ | ✅ | ❌ |
| Email alerts | ✅ free plan | ❓ paid only | — | — | — |
| 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.
Free Insider Trading Alerts
InsidersAlpha's free plan includes a personal watchlist — add up to 3 stocks and get an email alert whenever an insider at one of those companies buys or sells. No credit card required to sign up, and no need to check the dashboard manually every day. Upgrade to Pro for an unlimited watchlist and alerts across every stock you follow.
Start tracking free →Which markets does it cover? 18 markets, all updated daily
16 European regulators plus South Korea and Singapore — 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 →
Singapore — director and substantial shareholder disclosures via SGX
InsidersAlpha tracks director, CEO, and substantial shareholder transactions disclosed through SGX (Singapore Exchange) company announcements, covering SGX-listed companies under the Securities and Futures Act. Browse Singapore transactions →
How accurate is the data?
Every transaction on InsidersAlpha comes directly from an official regulator's own disclosure feed — not a third-party data reseller. That includes BaFin, AMF, FCA, FI, and the other 13 regulators shown above. Filings are parsed daily, normalized into a common format, and cross-checked against known price history to flag likely data errors before they reach the signal layer.
To validate whether the signal layer (cluster buying, price dip buying, pre-blackout buying, repetitive buying) actually identifies higher-conviction trades, we ran a study against the full transaction history: insider buys with at least one detected signal averaged +3.2% over the following 90 days, across 1,452 tracked signals. Read the full research, including the control-group comparison →
Two of the specific signals worth understanding on their own: cluster buying (multiple insiders at the same company buying within a short window) and price dip buying (an insider buying after a meaningful price decline) — both have their own dedicated pages explaining how they're detected and what the historical data shows.
Past performance does not guarantee future results.
Frequently asked questions
What is the best insider trading tracker for European stocks?
InsidersAlpha covers 18 markets — 16 European regulators, plus South Korea and Singapore — tracking real-time MAR Art.19 disclosures from official regulators including BaFin, AMF, AFM, and 12 others. It uniquely combines insider signals with active buyback tracking across 1,750+ programs — a combination not available on any other platform. See how it stacks up against alternatives in our InsiderScreener comparison.
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.
What is the best free insider trading tracker for Europe?
InsidersAlpha's free plan covers 18 markets, including Germany, France, the UK, Sweden, the Netherlands, South Korea, and Singapore, with a personal watchlist and email alerts for up to 3 stocks — no credit card required.
How do I get email alerts for European insider trading?
Sign up free at InsidersAlpha and add up to 3 stocks to your watchlist. You'll get an email whenever an insider at one of those companies buys or sells shares.
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, plus a free watchlist with email alerts for up to 3 stocks. No account or credit card is required. InsiderScreener has no free plan — a paid subscription is required from its first tier. InsiderPulse also offers a free tier, though with different data limits.
Is there a free alternative to InsiderScreener?
Yes. InsidersAlpha offers a free plan with watchlist alerts for up to 3 stocks across 18 European and Asian markets. InsiderScreener has no free plan.
Start tracking European insiders today
Free tier includes 50 recent transactions, full signal badges, and market filters — no account required.
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