While Icosavax, Inc. (NASDAQ:ICVX) shareholders have had a good week with the stock up 41%, insiders can't say the same having sold stock over the past year. The value of their investment would have been higher had they waited to sell their stock.

While insider transactions are not the most important thing when it comes to long-term investing, we would consider it foolish to ignore insider transactions altogether.

See our latest analysis for Icosavax

Icosavax Insider Transactions Over The Last Year

Over the last year, we can see that the biggest insider sale was by the insider, Douglas Holtzman, for US$219k worth of shares, at about US$11.14 per share. We generally don't like to see insider selling, but the lower the sale price, the more it concerns us. The silver lining is that this sell-down took place above the latest price (US$9.30). So it may not tell us anything about how insiders feel about the current share price. Douglas Holtzman was the only individual insider to sell over the last year.

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!

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

Insider Ownership Of Icosavax

Looking at the total insider shareholdings in a company can help to inform your view of whether they are well aligned with common shareholders. A high insider ownership often makes company leadership more mindful of shareholder interests. Insiders own 3.4% of Icosavax shares, worth about US$16m. While this is a strong but not outstanding level of insider ownership, it's enough to indicate some alignment between management and smaller shareholders.

What Might The Insider Transactions At Icosavax Tell Us?

There haven't been any insider transactions in the last three months -- that doesn't mean much. Still, the insider transactions at Icosavax in the last 12 months are not very heartening. But it's good to see that insiders own shares in the company. In addition to knowing about insider transactions going on, it's beneficial to identify the risks facing Icosavax. When we did our research, we found 4 warning signs for Icosavax (1 is concerning!) that we believe deserve your full attention.

Of course Icosavax 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.