It used to be that you could not IPO unless you were profitable, and furthermore the point of an IPO was to raise money needed to fund growth. But today these c

It used to be that you could not IPO unless you were profitable, and furthermore the point of an IPO was to raise money needed to fund growth. But today these companies have raised enough money from VC's that they don't need any more from the public markets. By listing shares and letting these insiders sell, there is more limited supply and great demand, so they can sell tiny stakes for inflated prices. It's really great for VC's and other insiders.