Some MasTec, Inc. (NYSE:MTZ) shareholders may be a little concerned to see that the Independent Director, Ernest Csiszar, recently sold a substantial US$2.4m worth of stock at a price of US$371 per share. That's a big disposal, and it decreased their holding size by 38%, which is notable but not too bad.

The Last 12 Months Of Insider Transactions At MasTec

In fact, the recent sale by Ernest Csiszar was the biggest sale of MasTec shares made by an insider individual in the last twelve months, according to our records. That means that an insider was selling shares at around the current price of US$364. We generally don't like to see insider selling, but the lower the sale price, the more it concerns us. We note that this sale took place at around the current price, so it isn't a major concern, though it's hardly a good sign.

MasTec insiders didn't buy any shares over the last year. The chart below shows insider transactions (by companies and individuals) over the last year. If you want to know exactly who sold, for how much, and when, simply click on the graph below!

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Does MasTec Boast High Insider Ownership?

I like to look at how many shares insiders own in a company, to help inform my view of how aligned they are with insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. MasTec insiders own 22% of the company, currently worth about US$6.1b based on the recent share price. 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 MasTec Tell Us?

Insiders haven't bought MasTec stock in the last three months, but there was some selling. Looking to the last twelve months, our data doesn't show any insider buying. On the plus side, MasTec makes money, and is growing profits. While insiders do own a lot of shares in the company (which is good), our analysis of their transactions doesn't make us feel confident about the company. While it's good to be aware of what's going on with the insider's ownership and transactions, we make sure to also consider what risks are facing a stock before making any investment decision. While conducting our analysis, we found that MasTec has 2 warning signs and it would be unwise to ignore them.

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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.

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.