Learn insider trading data

Plain-language guides to SEC filings and how Greedy Insider scores them. Written for people who have never opened an SEC document.

Want the full picture? Read the insider trading pillar guide or browse the latest analysis.

What is a SEC Form 4?
A Form 4 is the document a company insider (officer, director, or 10%+ owner) must file with the SEC within 2 business days of buying or selling their company’s stock.
What is a cluster buy?
A cluster buy is when three or more different insiders of the same company buy its stock within a short window (7 days on this site).
The Greediness Score: explainable insider trading scores
The Greediness Score is a transparent 0-100 rating of how much structural conviction a public filing shows - who traded, how unusually large the trade was for that person, how fast it was disclosed, and who traded alongside them.

Greedy Insider - Insider Trading Tracker Greedy Insider tracks SEC Form 4 insider trades, congressional STOCK Act disclosures, and Schedule 13D activist filings, and rates each filing with the Greediness Score - a transparent 0–100 measure of structural conviction. The app requires JavaScript. Data is sourced from SEC EDGAR and official congressional disclosure records. For informational purposes only; not investment advice.