Monitor the latest open-market stock purchases by CEOs, CFOs, and Directors across the S&P 500. See where corporate insiders are putting their own money.
Frequently Asked Questions
What is insider buying and why does it matter?
Insider buying occurs when officers, directors, or key executives purchase stock in their own company on the open market. Legendary investor Peter Lynch famously noted that while insiders might sell their stock for many reasons, they usually only buy it for one: they think the price is going to go up.
What is an SEC Form 4 filing?
A Form 4 is a document that must be filed with the Securities and Exchange Commission (SEC) whenever there is a material change in the holdings of company insiders. It must be filed within two business days following the transaction date.
Which corporate insiders are the most important to track?
While all insider buying is notable, purchases by the Chief Executive Officer (CEO) and Chief Financial Officer (CFO) are generally considered the strongest signals, as these individuals have the most comprehensive view of the company's financial health and future prospects.
What is a cluster buy in stock trading?
A cluster buy happens when three or more insiders at the same company purchase shares on the open market within a short time frame (typically within a few weeks). This is often viewed as a stronger bullish signal than a single isolated purchase.
How quickly is insider trading data reported?
According to SEC rules, corporate insiders must file a Form 4 within two business days of executing a trade. This means the data you see is typically on a 48-hour delay from the actual transaction date.
Methodology & Data Sources
This tracker aggregates SEC Form 4 filings for open-market purchases by corporate insiders (officers and directors) across the constituents of the S&P 500 index. Data is sourced via Yahoo Finance's SEC filing feeds. We specifically filter for non-derivative "Purchase" transactions and exclude routine option exercises or automatic dividend reinvestments to highlight discretionary buys where insiders are putting new capital at risk.