We wouldn't blame Monolithic Power Systems, Inc. (NASDAQ:MPWR) shareholders if they were a little worried about the fact that Michael Hsing, the Founder recently netted about US$34m selling shares at an average price of US$583. However, it's crucial to note that they remain very much invested in the stock and that sale only reduced their holding by 5.1%.

See our latest analysis for Monolithic Power Systems

Monolithic Power Systems Insider Transactions Over The Last Year

Notably, that recent sale by Michael Hsing is the biggest insider sale of Monolithic Power Systems shares that we've seen in the last year. That means that an insider was selling shares at below the current price (US$594). We generally consider it a negative if insiders have been selling, especially if they did so below the current price, because it implies that they considered a lower price to be reasonable. 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. It is worth noting that this sale was only 5.1% of Michael Hsing's holding.

Insiders in Monolithic Power Systems 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. If you want to know exactly who sold, for how much, and when, simply click on the graph below!

For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

Does Monolithic Power Systems Boast High Insider Ownership?

Many investors like to check how much of a company is owned by insiders. 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 Monolithic Power Systems insiders own 4.5% of the company, worth about US$1.3b. Most shareholders would be happy to see this sort of insider ownership, since it suggests that management incentives are well aligned with other shareholders.

What Might The Insider Transactions At Monolithic Power Systems Tell Us?

Insiders haven't bought Monolithic Power Systems stock in the last three months, but there was some selling. And there weren't any purchases to give us comfort, over the last year. But since Monolithic Power Systems is profitable and growing, we're not too worried by this. It is good to see high insider ownership, but the insider selling leaves us cautious. So these insider transactions can help us build a thesis about the stock, but it's also worthwhile knowing the risks facing this company. For example - Monolithic Power Systems has 2 warning signs we think 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.

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.