There's no doubt that money can be made by owning shares of unprofitable businesses. For example, although software-as-a-service business Salesforce.com lost money for years while it grew recurring revenue, if you held shares since 2005, you'd have done very well indeed. But while history lauds those rare successes, those that fail are often forgotten; who remembers Pets.com?

So, the natural question for LENZ Therapeutics (NASDAQ:LENZ) shareholders is whether they should be concerned by its rate of cash burn. For the purposes of this article, cash burn is the annual rate at which an unprofitable company spends cash to fund its growth; its negative free cash flow. We'll start by comparing its cash burn with its cash reserves in order to calculate its cash runway.

Check out our latest analysis for LENZ Therapeutics

When Might LENZ Therapeutics Run Out Of Money?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In March 2024, LENZ Therapeutics had US$213m in cash, and was debt-free. In the last year, its cash burn was US$72m. That means it had a cash runway of about 3.0 years as of March 2024. Importantly, analysts think that LENZ Therapeutics will reach cashflow breakeven in 3 years. So there's a very good chance it won't need more cash, when you consider the burn rate will be reducing in that period. Depicted below, you can see how its cash holdings have changed over time.

How Is LENZ Therapeutics' Cash Burn Changing Over Time?

LENZ Therapeutics didn't record any revenue over the last year, indicating that it's an early stage company still developing its business. Nonetheless, we can still examine its cash burn trajectory as part of our assessment of its cash burn situation. Remarkably, it actually increased its cash burn by 292% in the last year. With that kind of spending growth its cash runway will shorten quickly, as it simultaneously uses its cash while increasing the burn rate. 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 Easily Can LENZ Therapeutics Raise Cash?

Given its cash burn trajectory, LENZ Therapeutics shareholders may wish to consider how easily it could raise more cash, despite its solid cash runway. Issuing new shares, or taking on debt, are the most common ways for a listed company to raise more money for its business. Many companies end up issuing new shares to fund future growth. By looking at a company's cash burn relative to its market capitalisation, we gain insight on how much shareholders would be diluted if the company needed to raise enough cash to cover another year's cash burn.