We've lost count of how many times insiders have accumulated shares in a company that goes on to improve markedly. The flip side of that is that there are more than a few examples of insiders dumping stock prior to a period of weak performance. So before you buy or sell Advanced Energy Industries, Inc. (NASDAQ:AEIS), you may well want to know whether insiders have been buying or selling.

Do Insider Transactions Matter?

Most investors know that it is quite permissible for company leaders, such as directors of the board, to buy and sell stock in the company. However, such insiders must disclose their trading activities, and not trade on inside information.

We would never suggest that investors should base their decisions solely on what the directors of a company have been doing. But it is perfectly logical to keep tabs on what insiders are doing. For example, a Columbia University study found that 'insiders are more likely to engage in open market purchases of their own company’s stock when the firm is about to reveal new agreements with customers and suppliers'.

See our latest analysis for Advanced Energy Industries

Advanced Energy Industries Insider Transactions Over The Last Year

Notably, that recent purchase by Stephen Kelley is the biggest insider purchase of Advanced Energy Industries shares that we've seen in the last year. That implies that an insider found the current price of US$93.73 per share to be enticing. While their view may have changed since the purchase was made, this does at least suggest they have had confidence in the company's future. We do always like to see insider buying, but it is worth noting if those purchases were made at well below today's share price, as the discount to value may have narrowed with the rising price. In this case we're pleased to report that the insider bought shares at close to current prices. Stephen Kelley was the only individual insider to buy shares in the last twelve months.

You can see a visual depiction of insider transactions (by companies and individuals) over the last 12 months, below. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of growing companies that insiders are buying.

Does Advanced Energy Industries Boast High Insider Ownership?

For a common shareholder, it is worth checking how many shares are held by company insiders. We usually like to see fairly high levels of insider ownership. It appears that Advanced Energy Industries insiders own 1.3% of the company, worth about US$45m. While this is a strong but not outstanding level of insider ownership, it's enough to indicate some alignment between management and smaller shareholders.

So What Does This Data Suggest About Advanced Energy Industries Insiders?

The recent insider purchase is heartening. And an analysis of the transactions over the last year also gives us confidence. Given that insiders also own a fair bit of Advanced Energy Industries we think they are probably pretty confident of a bright future. While we like knowing 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. You'd be interested to know, that we found 1 warning sign for Advanced Energy Industries and we suggest you have a look.

Of course Advanced Energy Industries 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, but not derivative transactions.

This article by Simply Wall St is general in nature. 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 (at) simplywallst.com.