Thanks to inflation, penny stocks are now stocks that trade under $5.

https://www.investopedia.com/terms/p/pennystock.asp

Also, penny stocks tend to be fairly illiquid with very marginal market cap and tend to trade on OTC/pink sheets and not on major stock exchanges.

So blue apron is penny stockish, but not quite there yet. We'll have to see if NYSE gives Blue Apron the boot.