The e-commerce giant has registered a trademark in the U.S. for a service described as: "We do the prep. You be the chef," according to a filing previously uncovered by The Sunday Times, based in the U.K.
Blue Apron shares hit an all-time intraday low of $6.45 a share, according to FactSet, and the stock was last down more than 10 percent.
Blue Apron, a meal-kit delivery service backed by major investors including Fidelity, Bessemer Venture Partners and First Round Capital, has seen shares fall after hitting the public market in late June. The stock has shed nearly 30 percent month to date.
The public market may be struggling to match the high valuation that Blue Apron saw in the private market, given that the company is losing money, Kathleen Smith, principal at Renaissance Capital, a manager of IPO-focused ETFs, told CNBC earlier this month.
The unicorn start-up was valued around $2 billion in the private market, according to CB Insights estimates. But the company has posted steeper net losses each year since 2014, according to regulatory filings.