We think that it's fair to say that the possibility of finding fantastic multi-year winners is what motivates many investors. But when you hold the right stock for the right time period, the rewards can be truly huge. One such superstar is TransMedics Group, Inc. (NASDAQ:TMDX), which saw its share price soar 441% in three years. Also pleasing for shareholders was the 71% gain in the last three months. The company reported its financial results recently; you can catch up on the latest numbers by reading our company report.

So let's investigate and see if the longer term performance of the company has been in line with the underlying business' progress.

TransMedics Group isn't currently profitable, so most analysts would look to revenue growth to get an idea of how fast the underlying business is growing. Shareholders of unprofitable companies usually desire strong revenue growth. As you can imagine, fast revenue growth, when maintained, often leads to fast profit growth.

In the last 3 years TransMedics Group saw its revenue grow at 82% per year. That's well above most pre-profit companies. And it's not just the revenue that is taking off. The share price is up 76% per year in that time. Despite the strong run, top performers like TransMedics Group have been known to go on winning for decades. So we'd recommend you take a closer look at this one, or even put it on your watchlist.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

We like that insiders have been buying shares in the last twelve months. Even so, future earnings will be far more important to whether current shareholders make money. If you are thinking of buying or selling TransMedics Group stock, you should check out this free report showing analyst profit forecasts.

A Different Perspective

It's good to see that TransMedics Group has rewarded shareholders with a total shareholder return of 94% in the last twelve months. That gain is better than the annual TSR over five years, which is 38%. Therefore it seems like sentiment around the company has been positive lately. Given the share price momentum remains strong, it might be worth taking a closer look at the stock, lest you miss an opportunity. It's always interesting to track share price performance over the longer term. But to understand TransMedics Group better, we need to consider many other factors. For instance, we've identified 1 warning sign for TransMedics Group that you should be aware of.

TransMedics Group is not the only stock insiders are buying. So take a peek at this free list of small cap companies at attractive valuations which insiders have been buying.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on American exchanges.

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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.