Many Sigma Healthcare Limited (ASX:SIG) 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, logic dictates you should pay some attention to whether insiders are buying or selling shares.

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The Last 12 Months Of Insider Transactions At Sigma Healthcare

The Executive Director, Damien Gance, made the biggest insider sale in the last 12 months. That single transaction was for AU$418m worth of shares at a price of AU$3.02 each. So we know that an insider sold shares at around the present share price of AU$2.75. 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.

Sigma Healthcare insiders didn't buy any shares over the last year. You can see the insider transactions (by companies and individuals) over the last year depicted in the chart below. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

See our latest analysis for Sigma Healthcare

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Insiders At Sigma Healthcare Have Sold Stock Recently

The last quarter saw substantial insider selling of Sigma Healthcare shares. In total, insiders sold AU$477m worth of shares in that time, and we didn't record any purchases whatsoever. Overall this makes us a bit cautious, but it's not the be all and end all.

Insider Ownership

Many investors like to check how much of a company is owned by insiders. We usually like to see fairly high levels of insider ownership. Sigma Healthcare insiders own about AU$17b worth of shares (which is 54% of the company). 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 Sigma Healthcare Insiders?

Insiders haven't bought Sigma Healthcare stock in the last three months, but there was some selling. And there weren't any purchases to give us comfort, over the last year. The company boasts high insider ownership, but we're a little hesitant, given the history of share sales. So while it's helpful to know what insiders are doing in terms of buying or selling, it's also helpful to know the risks that a particular company is facing. To assist with this, we've discovered 1 warning sign that you should run your eye over to get a better picture of Sigma Healthcare.

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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.

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