We'd be surprised if HilleVax, Inc. (NASDAQ:HLVX) shareholders haven't noticed that the Chief Medical Officer, Astrid Borkowski, recently sold US$287k worth of stock at US$14.35 per share. That sale was 14% of their holding, so it does make us raise an eyebrow.

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The Last 12 Months Of Insider Transactions At HilleVax

In fact, the recent sale by Astrid Borkowski was the biggest sale of HilleVax shares made by an insider individual in the last twelve months, according to our records. So it's clear an insider wanted to take some cash off the table, even below the current price of US$14.86. 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. This single sale was just 14% of Astrid Borkowski's stake.

Astrid Borkowski sold a total of 35.00k shares over the year at an average price of US$14.06. 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!

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Does HilleVax Boast High Insider Ownership?

Looking at the total insider shareholdings in a company can help to inform your view of whether they are well aligned with common shareholders. I reckon it's a good sign if insiders own a significant number of shares in the company. HilleVax insiders own about US$37m worth of shares. That equates to 5.6% of the company. 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 HilleVax Insiders?

An insider sold HilleVax shares recently, but they didn't buy any. Looking to the last twelve months, our data doesn't show any insider buying. While insiders do own shares, they don't own a heap, and they have been selling. We're in no rush to buy! In addition to knowing about insider transactions going on, it's beneficial to identify the risks facing HilleVax. For example, HilleVax has 5 warning signs (and 2 which are a bit concerning) we think you should know about.

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.

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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.