Monolithic Power Systems Insiders Sell US$261m Of Stock, Possibly Signalling Caution

Over the past year, many Monolithic Power Systems, Inc. (NASDAQ:MPWR) insiders sold a significant stake in the company which may have piqued investors' interest. When evaluating insider transactions, knowing whether insiders are buying versus if they selling is usually more beneficial, as the latter can be open to many interpretations. However, shareholders should take a deeper look if several insiders are selling stock over a specific time period.

While insider transactions are not the most important thing when it comes to long-term investing, logic dictates you should pay some attention to whether insiders are buying or selling shares.

View our latest analysis for Monolithic Power Systems

Monolithic Power Systems Insider Transactions Over The Last Year

Over the last year, we can see that the biggest insider sale was by the Founder, Michael Hsing, for US$34m worth of shares, at about US$583 per share. That means that even when the share price was below the current price of US$684, an insider wanted to cash in some shares. 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. However, while insider selling is sometimes discouraging, it's only a weak signal. We note that the biggest single sale was only 5.1% of Michael Hsing's holding.

In the last year Monolithic Power 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!

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).

Insiders At Monolithic Power Systems Have Sold Stock Recently

The last quarter saw substantial insider selling of Monolithic Power Systems shares. In total, insiders dumped US$38m worth of shares in that time, and we didn't record any purchases whatsoever. Overall this makes us a bit cautious, but it's not the be all and end all.

Insider Ownership

For a common shareholder, it is worth checking how many shares are held by company insiders. We usually like to see fairly high levels of insider ownership. Monolithic Power Systems insiders own about US$1.3b worth of shares (which is 3.9% of the company). 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 Does This Data Suggest About Monolithic Power Systems Insiders?

Insiders sold Monolithic Power Systems shares recently, but they didn't buy any. And there weren't any purchases to give us comfort, over the last year. The company boasts high insider ownership, but we're a little hesitant, given the history of share sales. While we like knowing 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. Every company has risks, and we've spotted 2 warning signs for Monolithic Power Systems you should know about.

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.