About insider trading data
This dashboard tracks SEC Form 4 filings — the documents corporate officers, directors, and 10%+ owners must file, typically within two business days of buying or selling their company's stock. finshort highlights cluster buys (multiple insiders buying the same stock within a short window), large open-market purchases, and notable filings.
More about this page
Every insider links to a full profile with their transaction history, and every ticker has a dedicated insider page. The insider leaderboard ranks insiders by the 12-month return of their open-market purchases.
Frequently asked questions
What is a Form 4 filing?
SEC Form 4 is the document corporate insiders (officers, directors, and 10%+ beneficial owners) must file to report transactions in their company's stock, typically within two business days of the trade.
What is an insider cluster buy?
A cluster buy is when multiple insiders at the same company purchase shares on the open market within a short window. Research has found cluster buys are a stronger bullish signal than isolated purchases because several informed people are committing capital at once.
Why do open-market purchases matter more than option exercises?
Open-market purchases are discretionary — the insider chose to spend their own money at the market price. Option exercises and grant-related acquisitions are often pre-scheduled compensation events and carry far less signal.