For beginners, it can seem like a good idea (and an exciting prospect) to buy a company that tells a good story to investors, even if it currently lacks a track record of revenue and profit. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.' While a well funded company may sustain losses for years, it will need to generate a profit eventually, or else investors will move on and the company will wither away.

In contrast to all that, many investors prefer to focus on companies like United Therapeutics (NASDAQ:UTHR), which has not only revenues, but also profits. Now this is not to say that the company presents the best investment opportunity around, but profitability is a key component to success in business.

View our latest analysis for United Therapeutics

How Quickly Is United Therapeutics Increasing Earnings Per Share?

The market is a voting machine in the short term, but a weighing machine in the long term, so you'd expect share price to follow earnings per share (EPS) outcomes eventually. That means EPS growth is considered a real positive by most successful long-term investors. It certainly is nice to see that United Therapeutics has managed to grow EPS by 34% per year over three years. If growth like this continues on into the future, then shareholders will have plenty to smile about.

It's often helpful to take a look at earnings before interest and tax (EBIT) margins, as well as revenue growth, to get another take on the quality of the company's growth. EBIT margins for United Therapeutics remained fairly unchanged over the last year, however the company should be pleased to report its revenue growth for the period of 25% to US$2.8b. That's encouraging news for the company!

You can take a look at the company's revenue and earnings growth trend, in the chart below. For finer detail, click on the image.

In investing, as in life, the future matters more than the past. So why not check out this free interactive visualization of United Therapeutics' forecast profits?

Are United Therapeutics Insiders Aligned With All Shareholders?

Owing to the size of United Therapeutics, we wouldn't expect insiders to hold a significant proportion of the company. But we do take comfort from the fact that they are investors in the company. We note that their impressive stake in the company is worth US$285m. This suggests that leadership will be very mindful of shareholders' interests when making decisions!

Is United Therapeutics Worth Keeping An Eye On?

You can't deny that United Therapeutics has grown its earnings per share at a very impressive rate. That's attractive. This EPS growth rate is something the company should be proud of, and so it's no surprise that insiders are holding on to a considerable chunk of shares. On the balance of its merits, solid EPS growth and company insiders who are aligned with the shareholders would indicate a business that is worthy of further research. We don't want to rain on the parade too much, but we did also find 1 warning sign for United Therapeutics that you need to be mindful of.

There's always the possibility of doing well buying stocks that are not growing earnings and do not have insiders buying shares. But for those who consider these important metrics, we encourage you to check out companies that do have those features. You can access a tailored list of companies which have demonstrated growth backed by significant insider holdings.

Please note the insider transactions discussed in this article refer to reportable transactions in the relevant jurisdiction.

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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.