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On November 17, 2025, Illumina dumped 1,000,000 shares of GRAL — $79.85M. On December 3, the CEO, CFO, and President sold a combined $7.59M on the same day, all discretionary. Tracenotes' cluster detector flagged it. On February 20, 2026, the NHS-Galleri trial missed its primary endpoint and the stock fell roughly 50%.
For three weeks in summer 2021, CEO Ernie Garcia III sold 60,000 shares a day. His father sold $3.6B in parallel. Sixteen months later the stock traded at $3.55 — a 99% drawdown. The same family is selling again, in similar size, at similar prices — this time under a 10b5-1 plan.
Last 30 days, top 15 tickers by activity. Bubble size = $ value. Click to dig in.
Three steps. No setup, no integrations.
Tracenotes pulls every Form 4 filed with the SEC across the S&P 500 and beyond, every day.
When three or more insiders trade in the same direction within 14 days, that’s a cluster — and you see it.
Add tickers to your watchlist. We email you when a cluster forms or a material event hits.
Insider intelligence + filing intelligence, in one place.
Every Form 4 across the S&P 500 and beyond, parsed within hours of filing.
Email alerts when 3+ insiders trade together — discretionary sales only, no 10b5-1 noise.
8-K material event alerts and language-change detection on 10-Ks and 10-Qs.
Daily 7am ET email summarizing what changed on the tickers you track.
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Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company’s stock. By law these filings must be submitted within two business days of the trade, so they are a near-real-time view of what insiders are doing.
Tracenotes scans EDGAR daily for new Form 4 filings. When a cluster forms (three or more insiders trade in the same direction within 14 days), users tracking that ticker get an email alert within hours of detection. Watchlist tickers are scanned more frequently than the broader universe.
Three or more distinct insiders buying or selling within a 14-day window. Multi-insider activity is a stronger signal than a single trade because three different people independently reach the same view. Tracenotes excludes pre-scheduled 10b5-1 sales from cluster detection.
Yes. Form 4 filings are public, filed with the SEC, and freely available on EDGAR. We aggregate and surface what is already published. No insider tips, no non-public information.
EDGAR is the source. But you have to know what you are looking for, search ticker by ticker, and read raw XML. Tracenotes does the cluster math, ranks signals by significance, and emails you when patterns form across the tickers you track.
Sourced directly from SEC EDGAR — the same data your broker, an analyst, or a regulator would use. We do not synthesize, infer, or estimate. If a transaction shows up on Tracenotes, the Form 4 is on EDGAR with the same numbers.