Many PTC Inc. (NASDAQ:PTC) 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, shareholders should take a deeper look if several insiders are selling stock over a specific time period.

While we would never suggest that investors should base their decisions solely on what the directors of a company have been doing, we do think it is perfectly logical to keep tabs on what insiders are doing.

Check out our latest analysis for PTC

PTC Insider Transactions Over The Last Year

The President & COO, Michael DiTullio, made the biggest insider sale in the last 12 months. That single transaction was for US$1.1m worth of shares at a price of US$159 each. That means that an insider was selling shares at slightly below the current price (US$189). 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. However, while insider selling is sometimes discouraging, it's only a weak signal. This single sale was just 11% of Michael DiTullio's stake.

Insiders in PTC 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 click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

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

Does PTC 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. PTC insiders own 1.1% of the company, currently worth about US$252m based on the recent share price. This kind of significant ownership by insiders does generally increase the chance that the company is run in the interest of all shareholders.

So What Does This Data Suggest About PTC Insiders?

The fact that there have been no PTC 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 PTC 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. In terms of investment risks, we've identified 2 warning signs with PTC and understanding these should be part of your investment process.

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.

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.