CEO buying stock: insider buys are now in Quantral
By Maya Koeva · September 24, 2026 · 7 min read
Insider buys are in Quantral. If a CEO, a CFO, a director or anyone who owns 10% of a company buys its stock on the open market, the app shows the purchase: who bought, their role, how much they spent and at what price. It sits on the company page next to Congress trades and what finance X, Reddit and Substack are saying, and it counts toward the company's score.
Most insider filings are not buys. From September 1 to 23, insiders at the companies Quantral covers filed 6,858 Form 4s, and 503 of them contained the kind of open-market purchase Quantral shows, about one in fourteen. Across those filings insiders reported 6,640 sales and 1,128 purchases. The buys you see in the app included the CEOs of GameStop, Uber and Grab spending a combined $86.7 million of their own money.
What a Form 4 is
Officers, directors and anyone who holds more than 10% of a company are insiders in the legal sense. They have two business days to report any trade in the company's stock to the SEC on a Form 4, and the SEC publishes the filing as soon as it accepts it. Each one names the insider, their role, the date, the number of shares, the price and what they own afterwards.
A lot of what lands on a Form 4 has little to do with what the insider thinks of the stock. Insiders report shares withheld for a tax bill, stock awarded as pay, option exercises, gifts and sales scheduled months ahead on the same form. In an open-market purchase the insider pays the market price with their own money, so Quantral shows the buys and leaves the rest out. What is insider buying covers how to read one: size, clusters, and where the signal breaks down.
What you see in the app when an insider buys
Each buy shows as a card in the feed and on the company page. The card names the buyer and their role and says how much they spent and at what price, and it links to the filing itself. Several insiders buying at one company on the same day share one card with the biggest buyers named, so a day when the whole board buys takes one card in your feed.
Companies with a buy in the last 30 days carry an Insider buying marker, so you can spot them at a glance. And the buy counts toward the company's 0–100 score, alongside members of Congress trading the same stock and the graded crowd on X, Reddit and Substack. The score comes with a plain-English reason, so you don't have to piece the sources together yourself.
CEOs buying stock in September: four recent filings
Four recent open-market purchases at companies you will know, three of them by the CEO. Prices are the average paid per share. The last column compares the September 23 close with that price.
| Company | Buyer | Filed | Bought | Price paid | Since the buy |
|---|---|---|---|---|---|
 GameStopGME | Ryan Cohen, CEO and chairman | Sep 10 | $20.4M | $20.38 | 18.8% |
| GameStopGME | Ryan Cohen, CEO and chairman | Sep 21 | $26.4M | $22.94 | 5.5% |
 UberUBER | Andrew Macdonald, president and COO | Sep 8 | $5.3M | $75.83 | 8.5% |
| UberUBER | Dara Khosrowshahi, CEO | Sep 10 | $10.0M | $70.96 | 2.2% |
 GrabGRAB | Anthony Tan, CEO | Sep 21 | $29.9M | $2.89 | 10.9% |
 LennarLEN | Berkshire Hathaway, 10% owner | Sep 21 | $212.4M | $77.42 | 5.3% |
- GameStop. Ryan Cohen bought 1,000,000 shares on September 10 and another 1,150,680 on September 21, the second time at a higher price than the first. After the two buys he holds about 40.5 million shares directly. The stock closed at $24.20 on September 23, above both.
- Uber. Two of the company's most senior executives bought within a week. Andrew Macdonald, the president and chief operating officer, bought 70,000 shares on September 4, and Dara Khosrowshahi, the CEO, bought 141,000 for about $10 million on September 10 and filed the same day. The stock kept sliding, and at $69.42 it sits below what either of them paid. We covered the week the CEO's buy landed in the most-mentioned stocks recap for September 7 to 11.
- Grab. Anthony Tan, the CEO, bought 10.35 million shares on September 21, after the stock slid from $3.53 on September 2 to $2.80 on September 18. Two sessions later the stock closed at $3.20.
- Lennar. Not a CEO, but the largest single filing of the month so far: Berkshire Hathaway, a 10% owner, bought 2.74 million Lennar shares from September 17 to 21 at prices between $74.80 and $79.41. The stock closed at $81.52 on September 23, above every price paid.
By September 23, three of the four stocks closed above what the insider paid and Uber closed below, all within two weeks of the buys. Two weeks is too short to judge a purchase either way, and a buy alone is no reason to buy the stock. You read it best on the company page, next to Congress trades and what the investors with the strongest records on X, Reddit and Substack are saying about the same name.
Where it shows up in the app
- In the feed, as a card with the buyer, their role, the amount and the price.
- On the company page, in the same list as Congress trades and posts from X, Reddit and Substack, with the Insider buying marker for 30 days after a buy.
- In the score, where an insider buy counts with everything else said about the stock.
Common questions
What does it mean when a CEO buys stock?
A CEO buying stock on the open market is spending their own money on shares of the company they run, at the price anyone else would pay, and they have to report it on a Form 4 within two business days. It tells you the person with the closest view of the business thinks the shares are worth at least what they paid, though it says nothing about when the price will reflect that.
Is a CEO buying stock a good sign?
It is one of the more honest signals in public filings, because a purchase has one reason behind it where a sale can have many. It is still one input. Insiders buy early and sometimes buy on the way down, so a buy is worth more when other evidence points the same way, which is what the company page and the score in Quantral are for.
How quickly do insider buys show up?
Insiders have two business days to file, and the buy appears in the app once they do. Congress is slower: members get up to 45 days to disclose a trade.
Why doesn't Quantral show insider selling?
A sale rarely tells you much. Executives sell to pay taxes, buy a house, spread out their wealth, or on a schedule they set months in advance. Quantral shows only open-market buys, and leaves out sales and pre-scheduled plan trades.
Are insiders graded like members of Congress?
No. Members of Congress trade often enough to build a record, so each one is a graded voice in Quantral. An insider might buy their own company's stock once or twice in a career, so a personal record would say little, and their buys count toward the stock's score instead.
How is this different from OpenInsider?
OpenInsider is a free site that lists every insider filing, sales included, with screens for cluster buys and the stock's move after each trade. Quantral shows only the open-market buys and puts them next to Congress trades and the crowd in one score. Quantral vs OpenInsider compares the two in detail.
Try it
Open any company in the app, on the web at app.quantral.com, on iOS or on Android, and the insider buys sit with everything else on that stock. Start with a 7-day free trial. For the short version and the questions people ask most, see the insider trading tracker, and for where insider filings fit among the other public sources, read alternative data sources.
Figures above are a snapshot from the morning of September 24, 2026, using closes through September 23. For the latest buys, open the Quantral app.
Quantral surfaces signals and context from public sources to support your own research. Nothing here is financial advice or a recommendation to buy or sell.