Stock Analysis

Don't Ignore The Insider Selling In ASP Isotopes

Some ASP Isotopes Inc. (NASDAQ:ASPI) shareholders may be a little concerned to see that the Independent Director, Duncan Moore, recently sold a substantial US$696k worth of stock at a price of US$9.28 per share. However, that sale only accounted for 7.0% of their holding, so arguably it doesn't say much about their conviction.

The Last 12 Months Of Insider Transactions At ASP Isotopes

Notably, that recent sale by Duncan Moore is the biggest insider sale of ASP Isotopes shares that we've seen in the last year. We generally don't like to see insider selling, but the lower the sale price, the more it concerns us. It's of some comfort that this sale was conducted at a price well above the current share price, which is US$7.96. So it is hard to draw any strong conclusion from it.

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

View our latest analysis for ASP Isotopes

insider-trading-volume
NasdaqCM:ASPI Insider Trading Volume September 5th 2025

I will like ASP Isotopes better if I see some big insider buys. While we wait, check out this free list of undervalued and small cap stocks with considerable, recent, insider buying.

Insider Ownership

I like to look at how many shares insiders own in a company, to help inform my view of how aligned they are with insiders. We usually like to see fairly high levels of insider ownership. It's great to see that ASP Isotopes insiders own 20% of the company, worth about US$147m. 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 ASP Isotopes Insider Transactions Indicate?

An insider sold ASP Isotopes shares recently, but they didn't buy any. And even if we look at the last year, we didn't see any purchases. While insiders do own a lot of shares in the company (which is good), our analysis of their transactions doesn't make us feel confident about the company. While it's good to be aware of 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. For instance, we've identified 4 warning signs for ASP Isotopes (1 is potentially serious) you should be aware of.

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 NasdaqCM:ASPI

ASP Isotopes

A development stage advanced materials company, engages in the production, distribution, marketing, and sale of isotopes.

Adequate balance sheet with slight risk.

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