Blue Apron was a pioneer in delivering food kits to customers for assembling meals at home. Now it is beating a path to an initial public offering.

The five-year-old company filed on Thursday to go public, moving to become one of the most prominent consumer start-ups in recent years to pursue a stock listing. It plans to trade under the symbol “APRN.”

Blue Apron is seeking to go public as it faces intensifying competition from a host of rivals, including HelloFresh, Sun Basket and the vegetarian-focused Purple Carrot. And its filing shed light on some of the high costs of that race: Even as the company’s revenue grew, its losses and marketing costs soared.

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