Too many of these well known folks sold at the height of all time high. I don't know if they really had an insider info(is there's any?), there's also an incident that Charlie Lee sold at the height when he sold most of his Litecoin's because of some issues but that means he dumped.

Lying or not we can't remove the reality that many of them sold at the days of all time high's. That's how the market works, when they are already on the profit why would they won't take profit with it?