Many Altair Engineering Inc. (NASDAQ:ALTR) insiders ditched their stock over the past year, which may be of interest to the company's shareholders. Knowing whether insiders are buying is usually more helpful when evaluating insider transactions, as insider selling can have various explanations. 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 would consider it foolish to ignore insider transactions altogether.

See our latest analysis for Altair Engineering

Altair Engineering Insider Transactions Over The Last Year

The Founder, James Scapa, made the biggest insider sale in the last 12 months. That single transaction was for US$689k worth of shares at a price of US$74.30 each. That means that even when the share price was below the current price of US$83.46, an insider wanted to cash in some shares. When an insider sells below the current price, it suggests that they considered that lower price to be fair. That makes us wonder what they think of the (higher) recent valuation. Please do note, however, that sellers may have a variety of reasons for selling, so we don't know for sure what they think of the stock price. We note that the biggest single sale was only 22% of James Scapa's holding.

Insiders in Altair Engineering didn't buy any shares in the last year. You can see a visual depiction of insider transactions (by companies and individuals) over the last 12 months, below. If you want to know exactly who sold, for how much, and when, simply click on the graph below!

For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

Altair Engineering Insiders Are Selling The Stock

The last three months saw significant insider selling at Altair Engineering. In total, insiders sold US$135k worth of shares in that time, and we didn't record any purchases whatsoever. In light of this it's hard to argue that all the insiders think that the shares are a bargain.

Insider Ownership

Looking at the total insider shareholdings in a company can help to inform your view of whether they are well aligned with common shareholders. We usually like to see fairly high levels of insider ownership. It's great to see that Altair Engineering insiders own 28% of the company, worth about US$1.9b. I like to see this level of insider ownership, because it increases the chances that management are thinking about the best interests of shareholders.

So What Does This Data Suggest About Altair Engineering Insiders?

Insiders sold stock recently, but they haven't been buying. And there weren't any purchases to give us comfort, over the last year. 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. Of course, the future is what matters most. So if you are interested in Altair Engineering, you should check out this free report on analyst forecasts for the company.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting 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.