A number of Mirum Pharmaceuticals, Inc. (NASDAQ:MIRM) insiders sold their shares in the last year, which may have raised concerns among investors. When analyzing insider transactions, it is usually more valuable to know whether insiders are buying versus knowing if they are selling, as the latter sends an ambiguous message. However, when multiple insiders sell stock over a specific duration, shareholders should take notice as that could possibly be a red flag.

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 Mirum Pharmaceuticals

The Last 12 Months Of Insider Transactions At Mirum Pharmaceuticals

The Chief Financial Officer Eric Bjerkholt made the biggest insider purchase in the last 12 months. That single transaction was for US$296k worth of shares at a price of US$29.65 each. That means that an insider was happy to buy shares at around the current price of US$30.00. While their view may have changed since the purchase was made, this does at least suggest they have had confidence in the company's future. We do always like to see insider buying, but it is worth noting if those purchases were made at well below today's share price, as the discount to value may have narrowed with the rising price. In this case we're pleased to report that the insider bought shares at close to current prices. The only individual insider to buy over the last year was Eric Bjerkholt.

Over the last year we saw more insider selling of Mirum Pharmaceuticals shares, than buying. 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!

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 Of Mirum Pharmaceuticals

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. Insiders own 1.9% of Mirum Pharmaceuticals shares, worth about US$27m. While this is a strong but not outstanding level of insider ownership, it's enough to indicate some alignment between management and smaller shareholders.

So What Does This Data Suggest About Mirum Pharmaceuticals Insiders?

It doesn't really mean much that no insider has traded Mirum Pharmaceuticals shares in the last quarter. We don't take much encouragement from the transactions by Mirum Pharmaceuticals insiders. The modest level of insider ownership is, at least, some comfort. 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 1 warning sign for Mirum Pharmaceuticals you should know about.

Of course Mirum Pharmaceuticals may not be the best stock to buy. So you may wish to see this free collection of high quality 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.

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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.