Comparison · 2026-05-26
Free insider trading trackers compared (2026): Tracefour vs Insider Screener, OpenInsider, Quiver, Capitol Trades & Finviz
Most of the well-known insider-trading data sites are either US-only with bare-table UIs, or full-feature trackers locked behind a $16–$55/month subscription. This page is a straight comparison of the five most-cited trackers, and where Tracefour fits as a free alternative: what each one actually costs, which markets and feeds it covers, and which features it puts behind a paywall.
Every claim about a competitor on this page was sourced from their own pricing or feature pages (or third-party reviews where the bot blocked our crawler). Claims about Tracefour are verified against the codebase. Pricing changes; if you find a stale number, the contact form on /about is the fastest way to flag it.
TL;DR
- TracefourFreeThe only tracker bundling US Form 4, Congress, and UK / SE / DE filings in one free product.
- OpenInsiderFreeCanonical free US Form 4 tracker since 2011. Tables only, US-only, no Congress.
- Insider Screener$16+/moWidest European coverage (16 markets). Core features behind subscription.
- Quiver Quant$25/moUS Form 4 + Congress in one place. Alerts, exports, backtester behind Premium.
- Capitol TradesFreeFree Congress-only tracker. No Form 4, 3-year limit, 24–48h disclosure lag.
- Finviz Insider$39.50/moFree insider table; charts and alerts are Finviz Elite. US-only.
At a glance
The matrix below is intentionally narrow, only the things people actually search for when they are picking a tracker. Pricing rows show the entry-level paid tier where one exists.
Included on free tierPartial or gatedNot offered
| Feature | Tracefour | Insider Screener | OpenInsider | Quiver Quant | Capitol Trades | Finviz Insider |
|---|---|---|---|---|---|---|
| Free tier exists | ✓ (full product) | ~ (browse-only) | ✓ (full product) | ~ (heavily gated) | ✓ (full product) | ~ (Elite for advanced) |
| Entry paid tier (USD) | No paid tier | ≈ $16/mo | No paid tier | $25/mo or $300/yr | No paid tier | $39.50/mo (Elite) |
| Free account / watchlists | ✓ (4 tickers + 4 insiders + 4 members) | ~ (paid tier required) | ✗ | ~ (limited on free) | ✗ | ~ (Elite required) |
| US SEC Form 4 data | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ |
| US Congress / STOCK Act | ✓ | ✗ | ✗ | ✓ | ✓ | ✗ |
| United Kingdom (FCA) | ✓ (/uk) | ~ (paid) | ✗ | ✗ | ✗ | ✗ |
| Sweden (Finansinspektionen) | ✓ (/se) | ~ (paid) | ✗ | ✗ | ✗ | ✗ |
| Germany (BaFin) | ✓ (/de) | ~ (paid) | ✗ | ✗ | ✗ | ✗ |
| Other European markets (FR, IT, ES, NL, BE, CH, FI, DK, GR…) | ✗ (planned) | ~ (paid) | ✗ | ✗ | ✗ | ✗ |
| Treemap / heatmap view | ✓ (Insider Map) | ✗ | ✗ | ✗ | ✗ | ✗ |
| Cluster-buy detection | ✓ (/clusters with 0–100 conviction score) | ~ (paid) | ~ (preset URL only) | ~ (paid) | ✗ | ~ (Elite) |
| Multi-week streak detection | ✓ (/streaks + track record) | ✗ | ✗ | ✗ | ✗ | ✗ |
| Post-filing price chart with dots | ✓ | ~ (paid) | ~ (separate chart page) | ✓ | ~ (featured tickers only) | ~ (Elite for real-time) |
| Wallets Aligned (Congress × SEC overlap) | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Daily shareable PNG cards | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Real-time / push alerts | ✗ | ~ (Premium only) | ✗ | ~ (Premium only) | ✗ | ~ (Elite only) |
| Email digest | ✗ (planned) | ~ (paid) | ✗ | ~ (Premium) | ~ (newsletter) | ~ (Elite) |
| Public REST API | ✗ | ~ (€25–€339/mo) | ✗ | ~ ($30–$75/mo) | ✗ | ✗ |
| Dark + Light themes | ✓ | ✓ | ✗ (light only) | ✓ | ✓ | ✓ |
| Third-party ads on the page | ✗ (no ads) | ✗ | ~ (banner ads) | ✗ | ✗ | ~ (sponsorship) |
| Refresh cadence | Hourly rebuild | Continuous | Within hours | Daily / continuous | Within 24–48h | 15-min delayed (free) |
Pricing verified May 2026 against each vendor's pricing page or, where the bot blocked the request, against third-party reviews on findmymoat.com and similar trackers. Subscription prices change frequently, always confirm on the vendor's page.
Head-to-head: what each tracker is best at
1. Insider Screener
insiderscreener.com · 16 markets · paidThe widest European footprint on this list and the closest paid competitor to Tracefour. Covers the United States, Canada, and the major European markets (Germany, France, Spain, Italy, UK, Switzerland, Belgium, Netherlands, Sweden, Finland, Denmark, Greece) plus India and Australia, 16 markets total. Standardises PDMR / directors-dealings filings from each national regulator into one feed, which is a non-trivial engineering job because each regulator publishes in a different format and language.
Where it wins: sheer geographic coverage. If you need French AMF filings, Italian CONSOB rows, or Indian SEBI insider disclosures today, Insider Screener is the one tool that has them, including alerts, screeners and email digests on the paid tiers.
Where it gates: the Free plan is a browse-only preview. The paid tiers (commonly cited around $16, $27 and $55 per month) unlock the full screener, tracked watchlists (25 / 50 / 500 stocks depending on tier), saved alerts (5 / 15 / 50) and real-time alerts on Premium. The API runs separately from €25 to €339 per month. No US Congress data.
Tracefour vs Insider Screener. Tracefour covers fewer European countries today (UK, Sweden, Germany, the Netherlands) but is fully free, includes US Congress STOCK Act data, has a treemap visualisation Insider Screener does not offer, and ships a 0–100 conviction score on its /clusters page that doesn't exist anywhere else. The right choice depends on whether geographic breadth or feature depth matters more to you.
2. OpenInsider
openinsider.com · US only · freeThe default free US Form 4 tracker since 2011, and the site every other tracker gets compared to. No account, no signup, no email gate, land on the page, see the latest Form 4 filings as a sortable HTML table, and leave. Updates within hours of EDGAR. Has prebuilt screener URLs ("Latest Cluster Buys", "Top CEO/CFO Purchases", "Latest Insider Purchases $25k+") that the SEC-data community has bookmarked for years.
Where it wins: minimalism. If you already know exactly what you're looking for, OpenInsider gets you there fastest. Its table runs wider than ours in places (it shows shares owned and the percent change in each insider's holdings inline).
Where it stops: US only. No FCA, no BaFin, no Finansinspektionen, no Congress, no account, no dark theme, no treemap, no shareable PNG cards. The chart page exists but is separate from the table view and isn't paired with individual filings.
Tracefour vs OpenInsider. If you came here looking for a free alternative to OpenInsider, that's a yes. Tracefour reads the same Form 4 data from the same EDGAR source and adds what OpenInsider doesn't: UK, Sweden, Germany and Netherlands filings, US Congress STOCK Act trades, the Insider Map, and a free account with tracked tickers, insiders and members.
3. Quiver Quantitative
quiverquant.com · US only · freemium ($15–30/mo Premium)The closest competitor in scope: US Form 4 plus US Congress on one platform, plus a range of alternative-data datasets (lobbying, government contracts, app downloads, Twitter sentiment) that nobody else on this list aggregates. The free tier lets you browse the dashboards; alerts, full historical depth, the Congress backtester and CSV exports are Premium ($25/month or $300/year, with a 7-day trial on monthly and 30 days on annual).
Where it wins: breadth. If your edge is combining insider trades with lobbying records, government contract awards or other alternative signals, Quiver is the only consumer-priced product that does it in one place. The API ($30/month Hobbyist, $75/month Trader) is a real product, not a marketing tier.
Where it gates: almost all the actionable features. Free-tier users can look but can't track, alert, export, or backtest. US-only.
Tracefour vs Quiver. Tracefour doesn't try to be an alternative-data platform: no lobbying feed, no government-contract scraping. For pure insider + Congress overlap on US data, however, Tracefour's /congress page with Wallets Aligned (a cross-feed view that doesn't exist on Quiver), the post-filing price chart with dots, the 0–100 conviction score on /clusters and the multi-week streak view on /streaks are all free.
4. Capitol Trades
capitoltrades.com · US Congress only · freeThe dominant free Congress STOCK Act tracker. Clean UI, search by member or ticker, basic charts on featured tickers, newsletter. Cited by mainstream media (Wall Street Journal, New York Times) as their data source for Congress trade stories. There's no premium tier; what you see is everything they ship.
Where it wins: brand. If you want to point a non-finance reader at a Congress-trade story, Capitol Trades is the recognisable name.
Where it stops: Congress only. No SEC Form 4 data, so you can't see whether the company an insider is buying is also being bought (or sold) by its officers and directors. Historical data is capped at 3 years, and disclosures appear with a 24–48 hour lag on top of the legal 45-day STOCK Act filing window.
Tracefour vs Capitol Trades. Both are free. The difference is the second dataset: Tracefour shows Congress trades and SEC Form 4 corporate insider trades on the same price chart on /congress, plus the cross-feed Wallets Aligned view that flags tickers where both groups crossed $5,000 inside the same 60-day window. If you want only Congress, Capitol Trades is fine; if you want Congress in context, Tracefour adds the SEC layer at no cost.
5. Finviz Insider
finviz.com/insidertrading.ashx · US only · freemium ($39.50/mo Elite)Finviz isn't an insider-trading tracker per se; it's a general-purpose stock screener that happens to include an insider page. That page renders the latest Form 4 filings as a single sortable table with Buy / Sale / Option Exercise / Proposed Sale filters. The free tier is 15-minute delayed; real-time quotes, advanced charts, alerts and the wider screener product are Finviz Elite ($39.50/month, or $24.96/month billed annually).
Where it wins: ecosystem. If you already use Finviz for the stock-screener side, the insider page is one click away in the same UI you already know.
Where it stops: the insider page itself is the most basic of any tracker compared here, no charts inline, no clustering, no streak detection, no per-insider profile pages. US-only, no Congress.
Tracefour vs Finviz Insider. If you want only the recent-filings table, Finviz is fine. If you want it organised by cluster, by streak, by sector, or by impact size on the treemap, Tracefour does all of that, free.
What Tracefour does that nobody else does for free
- ·The Insider Map. A treemap heatmap on the homepage where every ticker with material 30-day activity becomes a cell, sized by the composite "impact" score (dollar value × materiality × cluster size) and coloured by direction (green buy / red sell). Cells are grouped by SIC sector. Save the whole thing as a PNG with one click. No competitor on this list visualises insider activity this way; the closest is OpenInsider's separate Buy-Sell Charts page, which is per-ticker and far less dense.
- ·Conviction-scored clusters with source-pedigree weighting. The /clusters page ranks every 3+ insider cluster with a 0–100 conviction score that explicitly excludes 10b5-1 planned trades, weights standalone sales differently from cashless option-exercise sales, and adjusts for insider seniority. The methodology is documented in plain English on /about, with nothing hidden behind a "Premium signal" badge.
- ·Multi-week streak detection with track record. The /streaks page surfaces insiders who filed in the same direction for 2+ consecutive calendar weeks, with a price-line track record of how each previous streak by that insider played out. Nobody else publishes this view.
- ·Wallets Aligned. The cross-feed view on /congress that highlights tickers where US Congress members and SEC-reporting insiders both crossed $5,000 inside the same 60-day window. It's a signal that requires combining two separate feeds, and isn't present on any single-source tracker.
- ·Daily PNG cards. Every morning a fresh /today, /clusters and /streaks card is regenerated as a 1200×630 PNG, with the date, the headline number and the Tracefour brand. Drop them straight into a tweet, a Slack thread or a newsletter, no screenshot tooling required.
- ·Four live European markets in one product./uk (FCA NSM PDMR filings), /se (Finansinspektionen Insynsregistret) and /de (BaFin Directors' Dealings Database) and /nl (AFM Meldingenregister) all share the same Insider Map / Filings Table treatment as the US homepage.
Where Tracefour is genuinely worse (today)
A fair comparison runs both directions. The paid trackers earn their subscriptions with features Tracefour deliberately does not yet ship:
- No real-time or push alerts. Tracefour rebuilds hourly; if you need a notification within seconds of a filing landing on EDGAR, Insider Screener Premium, Quiver Premium and Finviz Elite all do that and we don't.
- No email digest yet. The infrastructure is partly in place but the cron isn't shipped. Capitol Trades and Insider Screener both send a daily email; we don't.
- No custom screeners with saveable filter combinations. OpenInsider has preset URLs; Insider Screener Pro has saveable screens. Tracefour has fixed filter chips per page and no "save this filter" feature.
- No public REST API. Insider Screener and Quiver both run paid APIs. We don't have one, if you need programmatic access today, those are the options.
- No historical 13F institutional holdings. 13F is a different feed with its own quirks; Tracefour focuses on personal insider conviction (Form 4 / PDMR), which 13F doesn't capture.
- Smaller European footprint. Insider Screener covers 13 European markets; Tracefour covers 4 (UK, Sweden, Germany, the Netherlands). More European markets are on the roadmap but not live today.
- No member-vs-member comparison on /congress. Stacking two specific members side-by-side is an explicit non-feature for now. The line between data visualiser and advisory framing gets thin on per-member dashboards.
If any of those are central to your workflow today, the paid tracker that has them is the correct choice. For everyone else, Tracefour is the free product to start with, and the one that already includes the cross-feed signals the others don't.
FAQ
Is Tracefour really 100% free, or is there a paid tier coming?
Tracefour is fully free. There is no premium tier, no subscription, no paywall, no upsell. A free account lets you track up to four tickers, four insiders, and four members of Congress, with the same data and the same visualisations a signed-out visitor sees. The data is public SEC EDGAR, FCA NSM, BaFin DDB and Finansinspektionen filings; the product is built around making them readable, not around gating them.
What is the closest free alternative to Insider Screener?
For US insider data, OpenInsider is the long-standing free option but it is US-only, has no Congress data, and renders only as tables. Tracefour is the closest free alternative that also covers European markets (United Kingdom, Sweden, Germany) and US Congress STOCK Act disclosures, with a visual treemap (the Insider Map), conviction-scored clusters, and consecutive-week streaks. Insider Screener covers more markets (16 total) than Tracefour does today, but every feature it gates behind a paid tier (alerts, screeners, multiple watchlists, insider performance) has a free equivalent on Tracefour.
Which countries does Tracefour cover?
Tracefour covers five markets today: United States (SEC Form 4), United Kingdom (FCA National Storage Mechanism PDMR filings), Sweden (Finansinspektionen Insynsregistret), Germany (BaFin Directors' Dealings Database) and the Netherlands (AFM Meldingenregister). Each market has its own /se, /uk, /de, /nl page with the same insider-map and filings-table treatment. More European markets are planned.
Does Tracefour cover Congress trades like Capitol Trades or Quiver Quantitative?
Yes. The /congress page surfaces STOCK Act Periodic Transaction Reports from members of the US House and Senate, plotted on the same price chart as the matching SEC Form 4 filings. A "Wallets Aligned" view highlights tickers where both Congress members and corporate insiders crossed a $5,000 threshold inside the same 60-day window, a cross-feed signal that none of the single-source competitors expose.
How often is the data refreshed?
Tracefour rebuilds from source every hour. US Form 4 filings are pulled from EDGAR's RSS feed (real-time) and the EFTS search index (backfill); UK, Swedish and German filings come from each country's public registry. Daily price closes are synced from Yahoo Finance on US market close (Monday–Friday 22:00 UTC). Congress STOCK Act disclosures arrive with a legal 45-day filing lag baked into the law; that delay is inherent to every Congress tracker, not unique to Tracefour.
What does OpenInsider do that Tracefour does not?
OpenInsider has a long history (running since 2011), an established backlink profile, and a set of saved screener URLs that the SEC-data community has bookmarked for years. Its data table is wider than ours in some places (lifetime owned column, percentage-of-position column displayed inline). It does not, however, cover any non-US market, has no Congress data, no treemap visualisation, no shareable PNG cards, no save-image feature, no dark theme, and no account.
What does Tracefour not have that paid trackers do?
Tracefour does not (yet) have: real-time push or email alerts on new filings, custom screeners with saveable filter combinations, member-vs-member comparison views, historical 13F institutional holdings, options / derivative trade tracking, ETF flow data, or a public API for programmatic access. If those are central to your workflow, a paid tracker like Insider Screener Premium, Quiver Quantitative Premium or Finviz Elite remains the right choice. For everything else, the same data is on Tracefour for nothing.
Where does Tracefour get its data?
All data comes from public regulatory filings. The US feed is SEC EDGAR (the same source every competitor uses). UK filings come from the FCA's National Storage Mechanism. Swedish filings come from Finansinspektionen's Insynsregistret. German filings come from BaFin's Directors' Dealings Database. Congress disclosures come from the House and Senate's public Periodic Transaction Report portals. Every row on the site links back to its source document; that is the authoritative record and the right place to verify anything that looks off.
Third-party pricing summarised from each vendor's own pricing page or recent reviews as of May 2026; confirm before subscribing. Trademarks belong to their respective owners.