Had anyone asked yourself why they suddenly a of them starting announcing they bought them? Why they dont keep the old strategy buying a share and stay quiet. I never heard them talk they bought a Tesla share. But I am sure they have them. To me it looks totally like a pump and dump situation. Whales are accumulating when price is cheap. And at the moment price start rising so they cant buy cheap anymore. But anyway their bags are quiet full already, they start shilling that coin so it pumps and then dumping start. Similar happened in first half of 2019.
What you saying is illegal for them.
Companies are not like bunch of guys who smoke joints and degen trade like that all day.
What can happen. They pay few $100 million penalty and in the same time earn few billions USD. We saw that in last 100 years that no banker ever go to prison wen doing illegal stuff.