Evaluations vs share price

Yes, I’m interested o private companies, I think i understand the public companies but I was getting confused with the share price in private companies doing fundraises.

As per the example of airbnb and monzo, early investors may be burned in later rounds of investments if the company isn’t performing.

I’m starting to think that in the case of the company I was looking at… at the current share price, early investors may be burned then once they need to do further raises…