Right after his inspiring flight, he dumped a half billion dollars worth of shares of the company. Cratered the share price. I am pretty sure it will come back eventually, but it was kind of heartless to get everyone excited and then yank the money out of the stock. He will need the cash eventually to produce multiple craft, but the timing was really a "let the peasants eat cake" moment.
It isn't only the penny stocks that run pump and dumps, I guess.