The Gamestop guy bought millions of dollars worth of shares and options on $GME, and then used his reputation to trigger a huge price upswing. Will there be any legal consequences?

I may resolve early if at the end of the year there seems to be no investigation or lawsuits forthcoming.

If there are consequences which are completely trivial relative to the profits gained, I may resolve this to a small number roughly in proportion to their share of his (approximate, risk-adjusted) profits.