Investors who take an interest in Quanterix Corporation (NASDAQ:QTRX) should definitely note that the Executive Chair, William P. Donnelly, recently paid US$2.88 per share to buy US$286k worth of the stock. We reckon that's a good sign, especially since the purchase boosted their holding by 62%.

The Last 12 Months Of Insider Transactions At Quanterix

In fact, the recent purchase by William P. Donnelly was the biggest purchase of Quanterix shares made by an insider individual in the last twelve months, according to our records. That means that even when the share price was higher than US$2.59 (the recent price), an insider wanted to purchase shares. 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. To us, it's very important to consider the price insiders pay for shares. It is generally more encouraging if they paid above the current price, as it suggests they saw value, even at higher levels.

Quanterix insiders may have bought shares in the last year, but they didn't sell any. 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!

There are always plenty of stocks that insiders are buying. If investing in lesser known companies is your style, you could take a look at this free list of companies. (Hint: insiders have been buying them).

Insider Ownership Of Quanterix

I like to look at how many shares insiders own in a company, to help inform my view of how aligned they are with insiders. We usually like to see fairly high levels of insider ownership. From our data, it seems that Quanterix insiders own 6.8% of the company, worth about US$8.3m. We do generally prefer see higher levels of insider ownership.

What Might The Insider Transactions At Quanterix Tell Us?

The recent insider purchase is heartening. We also take confidence from the longer term picture of insider transactions. However, we note that the company didn't make a profit over the last twelve months, which makes us cautious. While the overall levels of insider ownership are below what we'd like to see, the history of transactions imply that Quanterix insiders are reasonably well aligned, and optimistic for the future. So while it's helpful to know what insiders are doing in terms of buying or selling, it's also helpful to know the risks that a particular company is facing. For example, Quanterix has 2 warning signs (and 1 which can't be ignored) we think 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.

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.