18 years is a pretty exceptional tenure for any employee of any company.
Maxing out your ESPP and not selling a single share of any of the company stock you're given for 18 years is also pretty exceptional (and probably even bad financial planning).
I'm sure most Nvidia employees who were hired before the recent stock run up have made good money, but I doubt most of them are multimillionaires.
Most people I know sell most of their company stock when they get it, as they should. It's much more likely for you to make money with a diversified portfolio then holding a single stock.
Maxing out your ESPP and not selling a single share of any of the company stock you're given for 18 years is also pretty exceptional (and probably even bad financial planning).
I'm sure most Nvidia employees who were hired before the recent stock run up have made good money, but I doubt most of them are multimillionaires.
Most people I know sell most of their company stock when they get it, as they should. It's much more likely for you to make money with a diversified portfolio then holding a single stock.