: Instacart replaces founder as CEO with Facebook exec ahead of expected IPO No Comments Uncategorized Facebook executive Fidji Simo to take reins as chief executive as founder and CEO Apoorva Mehta to become chairman. Facebook executive Fidji Simo to take reins as chief executive as founder and CEO Apoorva Mehta to become chairman. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)