Yes and Facebook is probably one of the only of those who started with growth rather than looking for profit that has in fact become profitable. But they still haven't managed to make the amount of money back that was invested in them.
In 2014, facebook totalled roughly $3B net income [1]. So they made dramatically more money back in the last year than they raised totally and will probably continue to do so.
[0] https://www.crunchbase.com/organization/facebook/funding-rou...
[1] http://investor.fb.com/secfiling.cfm?filingID=1326801-14-7&C...