Are Insiders Selling Martin Marietta Materials, Inc. (NYSE:MLM) Stock?

By
Simply Wall St
Published
July 07, 2021
NYSE:MLM
Source: Shutterstock

It is not uncommon to see companies perform well in the years after insiders buy shares. On the other hand, we'd be remiss not to mention that insider sales have been known to precede tough periods for a business. So before you buy or sell Martin Marietta Materials, Inc. (NYSE:MLM), you may well want to know whether insiders have been buying or selling.

What Is Insider Buying?

Most investors know that it is quite permissible for company leaders, such as directors of the board, to buy and sell stock in the company. However, rules govern insider transactions, and certain disclosures are required.

Insider transactions are not the most important thing when it comes to long-term investing. But logic dictates you should pay some attention to whether insiders are buying or selling shares. For example, a Harvard University study found that 'insider purchases earn abnormal returns of more than 6% per year'.

See our latest analysis for Martin Marietta Materials

Martin Marietta Materials Insider Transactions Over The Last Year

The Chairman, C. Nye, made the biggest insider sale in the last 12 months. That single transaction was for US$6.7m worth of shares at a price of US$338 each. So it's clear an insider wanted to take some cash off the table, even below the current price of US$349. When an insider sells below the current price, it suggests that they considered that lower price to be fair. That makes us wonder what they think of the (higher) recent valuation. While insider selling is not a positive sign, we can't be sure if it does mean insiders think the shares are fully valued, so it's only a weak sign. This single sale was just 11% of C. Nye's stake.

Insiders in Martin Marietta Materials 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. By clicking on the graph below, you can see the precise details of each insider transaction!

insider-trading-volume
NYSE:MLM Insider Trading Volume July 7th 2021

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

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. A high insider ownership often makes company leadership more mindful of shareholder interests. Martin Marietta Materials insiders own about US$122m worth of shares (which is 0.6% of the company). 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 Does This Data Suggest About Martin Marietta Materials Insiders?

It doesn't really mean much that no insider has traded Martin Marietta Materials shares in the last quarter. While we feel good about high insider ownership of Martin Marietta Materials, we can't say the same about the selling of shares. In addition to knowing about insider transactions going on, it's beneficial to identify the risks facing Martin Marietta Materials. While conducting our analysis, we found that Martin Marietta Materials has 1 warning sign and it would be unwise to ignore this.

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, but not derivative transactions.

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This article by Simply Wall St is general in nature. 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.
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