Insiders were net sellers of Boston Scientific Corporation's (NYSE:BSX ) stock during the past year. That is, insiders sold more stock than they bought.

Although we don't think shareholders should simply follow insider transactions, logic dictates you should pay some attention to whether insiders are buying or selling shares.

The Last 12 Months Of Insider Transactions At Boston Scientific

In the last twelve months, the biggest single sale by an insider was when the insider, Eric Francis Thepaut, sold US$2.8m worth of shares at a price of US$52.49 per share. So it's clear an insider wanted to take some cash off the table, even below the current price of US$67.29. As a general rule we consider it to be discouraging when insiders are selling below the current price, because it suggests they were happy with a lower valuation. 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. This single sale was 81% of Eric Francis Thepaut's stake. The only individual insider seller over the last year was Eric Francis Thepaut.

The chart below shows insider transactions (by companies and individuals) over the last year. By clicking on the graph below, you can see the precise details of each insider transaction!

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 Boston Scientific Boast High Insider Ownership?

For a common shareholder, it is worth checking how many shares are held by company insiders. Usually, the higher the insider ownership, the more likely it is that insiders will be incentivised to build the company for the long term. It's great to see that Boston Scientific insiders own 0.2% of the company, worth about US$206m. 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 Boston Scientific Tell Us?

It doesn't really mean much that no insider has traded Boston Scientific shares in the last quarter. It's great to see high levels of insider ownership, but looking back over the last year, we don't gain confidence from the Boston Scientific insiders selling. 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. At Simply Wall St, we found 2 warning signs for Boston Scientific that deserve your attention before buying any shares.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of interesting companies, that have HIGH return on equity and low debt.

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.