Tracking insider trading filings means watching what company executives and directors buy or sell in their own stock. It is public information, filed with the SEC, and it can give everyday investors useful context before the wider market notices a shift.
Why Insider Filings Matter
When a CEO buys a large chunk of their own company's stock, that is worth knowing about. They have more information about the business than anyone outside. They are not always right, but a cluster of insider buying, where multiple executives buy at the same time, is one of the signals that experienced investors pay close attention to.
Insider selling is trickier. Executives sell for many reasons: paying taxes, buying a house, diversifying. A single sale often means nothing. But heavy selling across a whole leadership team at once is a different story.
The key document is the SEC Form 4. Every time a company insider buys or sells shares, they must file a Form 4 within two business days. These filings are free and public on the SEC's website (sec.gov). The catch is that checking them manually, across dozens of companies, is slow and tedious.
The Problem With Checking Manually
Say you follow 15 stocks. Each one could file a Form 4 at any time. You would need to visit the SEC's EDGAR database every day, search each company, skim the filings, and figure out if anything is worth acting on.
Most people do not do this. Which means they miss the signal entirely.
A Smarter Routine
The fix is to set up a scheduled search that does the checking for you and sends you a summary. That is exactly what AIDular is built for. You tell it what to track in plain English, pick a schedule (daily works well for insider filings), and it searches the web and emails you a clean report.
Here is a copy-paste prompt you can use in AIDular:
"Check for new SEC Form 4 insider buying or selling filings for the following companies: Tesla, Nvidia, Amazon, JPMorgan, and Palantir. Summarise any significant transactions from the past 24 hours, including the insider's name, their role, the number of shares, and whether it was a purchase or sale. Include links to sources."
Swap in whatever tickers you actually follow. Set it to run every weekday morning, say at 7am, and you will get a tidy email before the market opens. No manual digging required.
What to Look For in the Report
When your report lands, focus on these things:
- Cluster buying: Multiple insiders buying around the same time is a stronger signal than one person buying.
- Open-market purchases: These matter more than stock grants or option exercises. An insider actually spending their own cash is meaningful.
- Size of the transaction: A CFO buying $500 worth of stock is different from one buying $500,000.
- Recent patterns: One filing is a data point. A pattern over several weeks is more telling.
You can also ask AIDular to flag any Form 4 filings that cross a dollar threshold you set, like purchases over $100,000, so the noise is filtered out from the start.
Pairing This With Your Existing Research
Insider filings are one signal, not a complete picture. Pair them with earnings news, sector trends, or analyst coverage to get better context. AIDular can track all of these on different schedules and send them to the same inbox, so your morning reads are already organised.
The Lite plan at aidular.com is free, so it costs nothing to set up your first insider-filing tracker today.
This post is for general information only and is not financial advice. Always do your own research before making any investment decision.