https://www.cnbc.com/2018/02/23/dropbox-is-going-public-heres-whos-making-money.html

Dropbox has taken a very unconventional route to an IPO. Four years ago, the cloud software vendor raised $350 million in private capital at a $10 billion valuation and has since struggled to justify that price.

On Friday, Dropbox filed its long-awaited prospectus, providing the first official look at its financials as well as which investors are poised to get rich and which ones need a big stock pop to make any money.