Viewing insider transactions for Waters Corporation's (NYSE:WAT ) over the last year, we see that insiders were net buyers. This means that a larger number of shares were purchased by insiders in relation to shares sold.

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.

See our latest analysis for Waters

Waters Insider Transactions Over The Last Year

The Independent Director Mark Vergnano made the biggest insider purchase in the last 12 months. That single transaction was for US$998k worth of shares at a price of US$313 each. That implies that an insider found the current price of US$332 per share to be enticing. While their view may have changed since the purchase was made, this does at least suggest they have had confidence in the company's future. We do always like to see insider buying, but it is worth noting if those purchases were made at well below today's share price, as the discount to value may have narrowed with the rising price. Happily, the Waters insider decided to buy shares at close to current prices. Mark Vergnano was the only individual insider to buy during 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!

Waters is not the only stock insiders are buying. So take a peek at this free list of growing companies with insider buying.

Insider Ownership

Another way to test the alignment between the leaders of a company and other shareholders is to look at how many shares they own. I reckon it's a good sign if insiders own a significant number of shares in the company. Waters insiders own about US$77m worth of shares. That equates to 0.4% of the company. This level of insider ownership is good but just short of being particularly stand-out. It certainly does suggest a reasonable degree of alignment.

What Might The Insider Transactions At Waters Tell Us?

There haven't been any insider transactions in the last three months -- that doesn't mean much. But insiders have shown more of an appetite for the stock, over the last year. Overall we don't see anything to make us think Waters insiders are doubting the company, and they do own shares. 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. At Simply Wall St, we found 1 warning sign for Waters that deserve your attention before buying any shares.

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.