ATLASInsider trading tracker: what are executives doing with their own shares?
ATLAS reads SEC Form 4 filings every day and shows which companies saw their own executives and directors buy or sell shares, keeping only the trades that reflect a decision.
What it does
Insiders must report their trades to the SEC within two business days. ATLAS gathers these forms for the whole catalog and ranks companies by recent insider activity. For a stock you can open a six-month summary, a buy-versus-sell bar and a filterable table.
This is legal, public information. It is different from illegal insider trading, which uses non-public information; the data shown here is what executives disclosed.
Worked example with live data
Real ATLAS numbers, prices as of Oct 26, 2026.
Illustrative reading (the sale is made up; the price is live): an executive sells 50,000 shares of AAPL at $346.86, worth $17.3M. If they held 1,000,000 shares, that is 5% of their holding, small enough to be routine selling rather than a warning.
| Measure | Value |
|---|---|
| Shares sold | 50,000 |
| Price per share (live) | $346.86 |
| Value of the sale | $17,343,000 |
| Shares held before | 1,000,000 |
| Share of holdings sold | 5% |
The company data is live; the scenario in this example (amounts, weights or sizes) is an illustration, not a recommendation.
How ATLAS calculates it
Only open-market purchases and sales are counted. Shares received as pay, option exercises and shares withheld to pay taxes are not decisions, so they are left out. ATLAS flags cluster buying (several insiders buying close together) and shows what share of an insider's holding was sold.
Context matters more than the headline. A sale of 5% of a holding that was pre-planned is very different from three officers each buying with their own cash at the same time.
Limits you should know
Insiders sell for many reasons that have nothing to do with the stock: taxes, a house, diversification. Buying is the stronger signal, and even that is not a guarantee. Reports can arrive after a delay of up to two business days.
Where it sits in the plans
The insider trades tracker needs the Starter plan or above.
Run it on your own numbers
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Frequently asked questions
Where can I see insider trading data?
Insider trades are filed with the SEC on Form 4 and are public. ATLAS reads them daily and organizes them by company, so you do not have to search the SEC site.
Is it legal to follow insider trades?
Yes. Form 4 data is public. What is illegal is trading on non-public information.
Is insider buying a good signal?
It is considered a stronger signal than selling, especially when several insiders buy at once with their own money. It is not a guarantee.
Why does ATLAS ignore stock awards and tax withholding?
Because they are not decisions. Pay in stock and shares withheld for taxes are automatic, so counting them would hide the real buying and selling.
Related tools
- Executives and shareholdersATLAS shows who runs a company, who the large shareholders are, and what their stakes are worth, so you know whose interests sit behind a stock.
- Stock newsATLAS gathers the news on your positions and watchlist in one place and puts the price move in context, so you can tell a normal day from news-sized one.
- Price alertsATLAS price alerts tell you when something changes in your stocks, and the probability of touching a price level helps you choose levels that will actually fire.
Stocks used in this example
Open any of them to see the full public page, with fair value, odds and a one-year chart:
Not investment advice. ATLAS estimates come from statistical models and public data; they can be wrong and past results do not predict future ones. Disclaimer