Trabud Insider Trading Tracker
Trabud is a free insider trading tracker built on SEC Form 4 filings from the U.S. Securities and Exchange Commission. Ask questions in plain English about 460K+ insider buys and sells at 8,500+ companies since 2018.
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Ask a question about insider trading data
Why Investors Use Trabud to Track Insider Trading
Real-Time Updates
New SEC Form 4 filings are processed automatically as they appear on SEC EDGAR — most reach Trabud within an hour of SEC acceptance.
Advanced Filtering
Filter transactions by company, insider, transaction type, and more using the transaction screener.
Comprehensive Data
Access detailed information about insider transactions, ownership changes, and historical patterns across every sector.
Trabud by the Numbers
“EDGAR, the SEC's Electronic Data Gathering, Analysis, and Retrieval system, provides free public access to corporate information, including all Form 4 insider transaction disclosures filed by officers, directors, and major shareholders.”
— SEC EDGAR — U.S. Securities and Exchange Commission
Frequently Asked Questions
“Officers, directors, and beneficial owners of more than ten percent of a registered class of equity securities must report their transactions in company stock by filing Form 4 within two business days of the transaction date.”
— U.S. Securities and Exchange Commission (SEC)
What is SEC Form 4?
According to the SEC, Form 4 is a disclosure document that must be filed whenever there is a material change in the holdings of company insiders, including officers, directors, and 10% shareholders. Learn more in our guide to SEC Form 4.
What is insider trading data?
Insider trading data refers to the publicly disclosed transactions made by company insiders — executives, directors, and major shareholders — when they buy or sell their own company stock. According to SEC disclosure rules, these transactions must be publicly reported within two business days and can signal confidence or concern about a company's future. Read more about what insider trading means for investors.
How can I search insider trading data on Trabud?
Use the Trabud AI agent above to ask questions in plain English, like "Show me CEO purchases over $1 million" or "Who sold Tesla shares this month?" You can also browse the top transactions over the last 30 days for an overview or use the screener for advanced filters.
How often is Trabud's insider trading data updated?
Trabud collects new Form 4 filings from SEC EDGAR automatically throughout the day. Most appear in the Trabud screener within an hour of being accepted by the SEC; the methodology shows the current measured delay.
Is Trabud free to use?
Yes. Trabud offers free access to SEC Form 4 insider trading data, including the AI query agent, dashboard, and screener. See our guide to tracking insider trading to get started.
What the Research Shows
Decades of academic research find that insider buying carries genuine predictive signal. According to a study by Jeng, Metrick, and Zeckhauser (2003), portfolios that mirror insiders’ open-market purchases earned abnormal returns of roughly 11.2% per year, while insider sales showed no comparable effect. Earlier work by Lakonishok and Lee (2001) found that firms with heavy insider buying outperformed the market by about 6% over the following 12 months.
| Study | Finding | Source |
|---|---|---|
| Insider-purchase portfolios | ~11.2% annual abnormal return | Jeng, Metrick & Zeckhauser (2003) |
| Firms with heavy insider buying | ~6% outperformance over 12 months | Lakonishok & Lee (2001) |
| “Opportunistic” insiders | ~10% annual abnormal returns | Cohen, Malloy & Pomorski (2012) |
| SEC Form 4 reporting window | Filed within 2 business days; $0 to access on EDGAR | SEC, Section 16 (2024) |
“The positive abnormal returns to insiders come almost entirely from purchases; insider sales do not predict negative returns, consistent with sales being driven largely by liquidity and diversification needs.”
— Jeng, Metrick & Zeckhauser, “Estimating the Returns to Insider Trading” (2003)
“Section 16(a) of the Securities Exchange Act of 1934 requires officers, directors, and beneficial owners of more than 10% of a registered class of equity securities to report their transactions on Form 4 within two business days.”
— U.S. Securities and Exchange Commission (2024)
Browse the Data
Insider Trading by Company
Every tracked company's Form 4 history, plus the 11 sector pages.
Insiders A–Z
Look up any active insider's purchases and sales by name.
Weekly Insider Digest
The week's largest insider buys and sells, every Saturday.
How the Data Is Built
Sources, rules, filters, and freshness behind every figure.
Related Resources
Insider Buying Signals
Learn how insider purchases can indicate investment opportunities.
Form 4 for Investors
How to use SEC Form 4 filings in your investment research.
Research Insider Transactions
Step-by-step guide to analyzing insider trading data.
Top Transactions This Month
See the largest insider trades reported in the last 30 days.