Based on personal experience and friends who have been at unicorns in their early days - the first 50 employees average about $0. The next 100 average about $0.

In every case, the stock that the employees holds gets reclassified and diluted until it’s a funky employee-only stock that’s only saleable back to the company at nominal value, but the company isn’t buying.

So sure, maybe there’s some kind of nominal value, but actual cash money? $0.

I hold 10% of a business valued at £150M. My holding is worth £0 because I can never sell it to anyone.