No, this is not true. Bezos needs to maintain a huge an material % ownership of his company in order to maintain control - and - it's something investors will

No, this is not true. Bezos needs to maintain a huge an material % ownership of his company in order to maintain control - and - it's something investors will expect. Mackenzie could care less about influence over Amazon. If the stock markets would allow transactions at that scale without distortion, she could feasibly trade all of her AMZN for some other kind of portfolio and it would be just the same to her. Completely different situations. And the same thing applies to almost all Founder/CEOs until they retire, and then for some period afterwards.