Even when a business is losing money, it's possible for shareholders to make money if they buy a good business at the right price. For example, biotech and mining exploration companies often lose money for years before finding success with a new treatment or mineral discovery. But while the successes are well known, investors should not ignore the very many unprofitable companies that simply burn through all their cash and collapse.

Given this risk, we thought we'd take a look at whether Larimar Therapeutics (NASDAQ:LRMR) shareholders should be worried about its cash burn. In this report, we will consider the company's annual negative free cash flow, henceforth referring to it as the 'cash burn'. Let's start with an examination of the business' cash, relative to its cash burn.

Does Larimar Therapeutics Have A Long Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In December 2024, Larimar Therapeutics had US$183m in cash, and was debt-free. In the last year, its cash burn was US$71m. Therefore, from December 2024 it had 2.6 years of cash runway. Arguably, that's a prudent and sensible length of runway to have. The image below shows how its cash balance has been changing over the last few years.

Check out our latest analysis for Larimar Therapeutics

How Is Larimar Therapeutics' Cash Burn Changing Over Time?

Larimar Therapeutics didn't record any revenue over the last year, indicating that it's an early stage company still developing its business. So while we can't look to sales to understand growth, we can look at how the cash burn is changing to understand how expenditure is trending over time. The skyrocketing cash burn up 112% year on year certainly tests our nerves. It's fair to say that sort of rate of increase cannot be maintained for very long, without putting pressure on the balance sheet. While the past is always worth studying, it is the future that matters most of all. So you might want to take a peek at how much the company is expected to grow in the next few years.

How Hard Would It Be For Larimar Therapeutics To Raise More Cash For Growth?

Given its cash burn trajectory, Larimar Therapeutics shareholders may wish to consider how easily it could raise more cash, despite its solid cash runway. Companies can raise capital through either debt or equity. Commonly, a business will sell new shares in itself to raise cash and drive growth. By comparing a company's annual cash burn to its total market capitalisation, we can estimate roughly how many shares it would have to issue in order to run the company for another year (at the same burn rate).

Larimar Therapeutics' cash burn of US$71m is about 47% of its US$152m market capitalisation. That's high expenditure relative to the value of the entire company, so if it does have to issue shares to fund more growth, that could end up really hurting shareholders returns (through significant dilution).

Is Larimar Therapeutics' Cash Burn A Worry?

On this analysis of Larimar Therapeutics' cash burn, we think its cash runway was reassuring, while its increasing cash burn has us a bit worried. Even though we don't think it has a problem with its cash burn, the analysis we've done in this article does suggest that shareholders should give some careful thought to the potential cost of raising more money in the future. Taking a deeper dive, we've spotted 3 warning signs for Larimar Therapeutics you should be aware of, and 1 of them is significant.

If you would prefer to check out another company with better fundamentals, then do not miss this free list of interesting companies, that have HIGH return on equity and low debt or this list of stocks which are all forecast to grow.

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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.