In the last year, many Quanta Services, Inc. (NYSE:PWR) insiders sold a substantial stake in the company which may have sparked shareholders' attention. When evaluating insider transactions, knowing whether insiders are buying is usually more beneficial than knowing whether they are selling, as the latter can be open to many interpretations. However, if numerous insiders are selling, shareholders should investigate more.

While insider transactions are not the most important thing when it comes to long-term investing, we do think it is perfectly logical to keep tabs on what insiders are doing.

The Last 12 Months Of Insider Transactions At Quanta Services

Over the last year, we can see that the biggest insider sale was by the Executive Vice President of Business Administration, Derrick Jensen, for US$4.4m worth of shares, at about US$238 per share. That means that even when the share price was below the current price of US$258, an insider wanted to cash in some shares. We generally consider it a negative if insiders have been selling, especially if they did so below the current price, because it implies that they considered a lower price to be reasonable. While insider selling is not a positive sign, we can't be sure if it does mean insiders think the shares are fully valued, so it's only a weak sign. It is worth noting that this sale was only 6.7% of Derrick Jensen's holding.

Quanta Services insiders didn't buy any shares over the last year. The chart below shows insider transactions (by companies and individuals) over the last year. By clicking on the graph below, you can see the precise details of each insider transaction!

If you like to buy stocks that insiders are buying, rather than selling, then you might just love this free list of companies. (Hint: Most of them are flying under the radar).

Insider Ownership

Many investors like to check how much of a company is owned by insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. Quanta Services insiders own about US$446m worth of shares (which is 1.2% of the company). This kind of significant ownership by insiders does generally increase the chance that the company is run in the interest of all shareholders.

What Might The Insider Transactions At Quanta Services Tell Us?

There haven't been any insider transactions in the last three months -- that doesn't mean much. While we feel good about high insider ownership of Quanta Services, we can't say the same about the selling of shares. So these insider transactions can help us build a thesis about the stock, but it's also worthwhile knowing the risks facing this company. Case in point: We've spotted 1 warning sign for Quanta Services you should be aware of.

Of course Quanta Services may not be the best stock to buy. So you may wish to see this free collection of high quality companies.

For the purposes of this article, insiders are those individuals who report their transactions to the relevant regulatory body. We currently account for open market transactions and private dispositions of direct interests only, but not derivative transactions or indirect interests.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com