Over the past year, many Ciena Corporation (NYSE:CIEN) insiders sold a significant stake in the company which may have piqued investors' interest. When analyzing insider transactions, it is usually more valuable to know whether insiders are buying versus knowing if they are selling, as the latter sends an ambiguous message. 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.

The Last 12 Months Of Insider Transactions At Ciena

In the last twelve months, the biggest single sale by an insider was when the Independent Director, Bruce Claflin, sold US$1.4m worth of shares at a price of US$84.96 per share. So we know that an insider sold shares at around the present share price of US$81.24. We generally don't like to see insider selling, but the lower the sale price, the more it concerns us. Given that the sale took place at around current prices, it makes us a little cautious but is hardly a major concern.

Insiders in Ciena 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!

I will like Ciena better if I see some big insider buys.

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. Ciena insiders own 0.9% of the company, currently worth about US$100m based on the recent share price. 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 Do The Ciena Insider Transactions Indicate?

It doesn't really mean much that no insider has traded Ciena shares in the last quarter. While we feel good about high insider ownership of Ciena, we can't say the same about the selling of shares. So these insider transactions can help us build a thesis about the stock, but it's also worthwhile knowing the risks facing this company.

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.