Have any startups with 10 year exercise periods had a liquidity event yet? I'm genuinely interested to see how true to the idea they were, or whether they (eg) issued a bunch of new stock to current employees that diluted vested ex-employees.
Some companies allow their employees to sell a portion of vested stocks whenever they're doing a new round. SpaceX is one of the top examples I know of. This is how they retain the top talent.
