When you get issued stock options at a company, you immediately become liable for taxes on them, since they are treated as income. This is true even if there is no public market for the shares at that time (something that caused headaches for many early dotcom stock option grantees).
It's is an obvious precedent for taxing somebody who has "received" wealth via the route that Bezos has done.
It's is an obvious precedent for taxing somebody who has "received" wealth via the route that Bezos has done.