Over the past year, many MSA Safety Incorporated (NYSE:MSA) insiders sold a significant stake in the company which may have piqued investors' interest. Knowing whether insiders are buying is usually more helpful when evaluating insider transactions, as insider selling can have various explanations. However, when multiple insiders sell stock over a specific duration, shareholders should take notice as that could possibly be a red flag.

While we would never suggest that investors should base their decisions solely on what the directors of a company have been doing, we would consider it foolish to ignore insider transactions altogether.

See our latest analysis for MSA Safety

The Last 12 Months Of Insider Transactions At MSA Safety

Over the last year, we can see that the biggest insider sale was by the Chairman & CEO, Nishan Vartanian, for US$1.8m worth of shares, at about US$143 per share. That means that even when the share price was below the current price of US$161, 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 23% of Nishan Vartanian's holding.

Insiders in MSA Safety 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!

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

Does MSA Safety Boast High 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. Usually, the higher the insider ownership, the more likely it is that insiders will be incentivised to build the company for the long term. MSA Safety insiders own about US$396m worth of shares (which is 6.3% of the company). Most shareholders would be happy to see this sort of insider ownership, since it suggests that management incentives are well aligned with other shareholders.

So What Does This Data Suggest About MSA Safety Insiders?

The fact that there have been no MSA Safety insider transactions recently certainly doesn't bother us. It's great to see high levels of insider ownership, but looking back over the last year, we don't gain confidence from the MSA Safety insiders selling. 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 that end, you should learn about the 3 warning signs we've spotted with MSA Safety (including 1 which is potentially serious).

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.