[setr]

I would imagine you'd take out loans backed by those shares, if you're betting on the shares increasing in value, to get cash while not losing equity.

At the very least, some method exists to produce liquidity without actually losing equity, or the whole $1-salary but compensated purely by stock CEO model wouldn't make any sense (if they're just immediately selling what they get, then it might as well be a performance-based, or stock-based, bonus)