Stock Analysis

This Insider Has Just Sold Shares In Advanced Drainage Systems

We wouldn't blame Advanced Drainage Systems, Inc. (NYSE:WMS) shareholders if they were a little worried about the fact that Robert Eversole, the Independent Chairman of Board recently netted about US$1.6m selling shares at an average price of US$153. That sale reduced their total holding by 17% which is hardly insignificant, but far from the worst we've seen.

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The Last 12 Months Of Insider Transactions At Advanced Drainage Systems

In fact, the recent sale by Robert Eversole was the biggest sale of Advanced Drainage Systems shares made by an insider individual in the last twelve months, according to our records. So what is clear is that an insider saw fit to sell at around the current price of US$149. 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.

In the last year Advanced Drainage Systems insiders didn't buy any company stock. The chart below shows insider transactions (by companies and individuals) over the last year. If you want to know exactly who sold, for how much, and when, simply click on the graph below!

View our latest analysis for Advanced Drainage Systems

insider-trading-volume
NYSE:WMS Insider Trading Volume December 7th 2025

For those who like to find hidden gems this free list of small cap companies with recent insider purchasing, could be just the ticket.

Does Advanced Drainage Systems Boast High 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. We usually like to see fairly high levels of insider ownership. It's great to see that Advanced Drainage Systems insiders own 1.4% of the company, worth about US$159m. 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 Do The Advanced Drainage Systems Insider Transactions Indicate?

Insiders sold stock recently, but they haven't been buying. And even if we look at the last year, we didn't see any purchases. The company boasts high insider ownership, but we're a little hesitant, given the history of share sales. So these insider transactions can help us build a thesis about the stock, but it's also worthwhile knowing the risks facing this company. To assist with this, we've discovered 1 warning sign that you should run your eye over to get a better picture of Advanced Drainage Systems.

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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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

About NYSE:WMS

Advanced Drainage Systems

Designs, manufactures, and markets thermoplastic corrugated pipes and related water management products in the United States, Canada, and internationally.

Excellent balance sheet with acceptable track record.

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