Airbnb, Xiaomi and Palantir are probably profitable now. That's 3 out of the first 5, and I suspect that is broardly correct for most if the list.
Atlassian is a good example. Early employees sold their shares directly to the VC fund - none of the money went to the company.
That's pretty common - in the couple of years before Facebook float VCs were buying their way in anyway they could.