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Have Mirion Technologies Insiders Been Selling Stock?

Simply Wall St·05/25/2025 12:02:28
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We wouldn't blame Mirion Technologies, Inc. (NYSE:MIR) shareholders if they were a little worried about the fact that Lawrence Kingsley, the Independent Director recently netted about US$9.0m selling shares at an average price of US$17.94. That's a big disposal, and it decreased their holding size by 11%, which is notable but not too bad.

We've discovered 2 warning signs about Mirion Technologies. View them for free.

The Last 12 Months Of Insider Transactions At Mirion Technologies

Notably, that recent sale by Lawrence Kingsley is the biggest insider sale of Mirion Technologies shares that we've seen in the last year. So it's clear an insider wanted to take some cash off the table, even below the current price of US$18.84. As a general rule we consider it to be discouraging when insiders are selling below the current price, because it suggests they were happy with a lower valuation. However, while insider selling is sometimes discouraging, it's only a weak signal. We note that the biggest single sale was only 11% of Lawrence Kingsley's holding.

Mirion Technologies insiders didn't buy any shares over the last year. You can see the insider transactions (by companies and individuals) over the last year depicted in the chart below. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

Check out our latest analysis for Mirion Technologies

insider-trading-volume
NYSE:MIR Insider Trading Volume May 25th 2025

If you like to buy stocks that insiders are buying, rather than selling, then you might just love this free list of companies. (Hint: Most of them are flying under the radar).

Insider Ownership Of Mirion Technologies

Another way to test the alignment between the leaders of a company and other shareholders is to look at how many shares they own. Usually, the higher the insider ownership, the more likely it is that insiders will be incentivised to build the company for the long term. It's great to see that Mirion Technologies insiders own 4.7% of the company, worth about US$190m. Most shareholders would be happy to see this sort of insider ownership, since it suggests that management incentives are well aligned with other shareholders.

So What Do The Mirion Technologies Insider Transactions Indicate?

An insider sold stock recently, but they haven't been buying. Looking to the last twelve months, our data doesn't show any insider buying. It is good to see high insider ownership, but the insider selling leaves us cautious. 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 2 warning signs for Mirion Technologies that deserve your attention before buying any shares.

But note: Mirion Technologies may not be the best stock to buy. So take a peek at this free list of interesting companies with high ROE and low debt.

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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