Sorry, I was merely suggesting the market reaction.
Certainly, you would not "dump" that many shares on the market at a single point in time where you are not trading the market, but you become the market and kill the PPS.
He could have sold 1M shares per month to generate $1/2M per month to meet his basic needs and monthly expenses, maybe eat out a few times at Taco Bell, and so on.
However, you would expect an upside reaction or even over-reacton that would run for several trading days or longer, get picked up by Twitter, and so on. There would have been quite a bit of liquidity and folks could have done what they wanted.
Stay well.
AJ