I remember hearing about that too. I seem to recall the SEC looking into it and they were all off shore accounts.
It would be a pretty easy thing to trace. Which trading company executed the trade. Who’s account the trade went to.
There are records of all of that. However, if the owner is an off shore banking account, it gets a little harder to trace.
IF the US government really wanted to know who executed those trades. They could find out.
But they DIDN’T WANT TO KNOW!!