Over the past year, many Lockheed Martin Corporation (NYSE:LMT) insiders sold a significant stake in the company which may have piqued investors' interest. When evaluating insider transactions, knowing whether insiders are buying is usually more beneficial than knowing whether they are selling, as the latter can be open to many interpretations. However, if numerous insiders are selling, shareholders should investigate more.

Although we don't think shareholders should simply follow insider transactions, we do think it is perfectly logical to keep tabs on what insiders are doing.

See our latest analysis for Lockheed Martin

The Last 12 Months Of Insider Transactions At Lockheed Martin

Over the last year, we can see that the biggest insider sale was by the Chief Operating Officer, Frank St. John, for US$2.8m worth of shares, at about US$428 per share. That means that even when the share price was below the current price of US$483, an insider wanted to cash in some shares. 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. Please do note, however, that sellers may have a variety of reasons for selling, so we don't know for sure what they think of the stock price. We note that the biggest single sale was 100% of Frank St. John's holding.

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

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).

Does Lockheed Martin Boast High Insider Ownership?

Many investors like to check how much of a company is owned by insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. Insiders own 0.05% of Lockheed Martin shares, worth about US$55m. We've certainly seen higher levels of insider ownership elsewhere, but these holdings are enough to suggest alignment between insiders and the other shareholders.

So What Does This Data Suggest About Lockheed Martin Insiders?

It doesn't really mean much that no insider has traded Lockheed Martin shares in the last quarter. Our analysis of Lockheed Martin insider transactions leaves us cautious. The modest level of insider ownership is, at least, some comfort. 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. To assist with this, we've discovered 1 warning sign that you should run your eye over to get a better picture of Lockheed Martin.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of interesting companies, that have HIGH return on equity 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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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.