[brk]

Definitely.

Let's say I had all the same holdings as Musk or Bezos, just in much much lower amounts, proportionate to the difference of our net worth.

Use Amazon stock as an example. If Bezos indicates a desire to liquidate his Amazon holdings he has to file paperwork with SEC, and the very act of him selling his stock would impact the price downward. People wondering if he knows something would also start selling their shares, and just the sheer volume would take hours or even days to unload.

If I wanted to divest my proportion of AMZN I would click a few buttons in an online portal. 10 seconds later, my stock would be sold off at the then-current price, and I'd have a cash balance in my account. In the typical hourly trading volume of AMZN my transaction wouldn't even stand out.

Even if my entire net worth, and the net worth of all my closest friends was in AMZN, we could sell it for market price and the transactions would be settled in a few seconds. Nobody would even notice.