Supposedly the margin loans on Tesla that will be used to fund a good portion of the buyout are struck such that Elon has to repay them if TSLA falls more than 40% in price from the day the loan closes.
TESLA is a near trillion-dollar car company that trades at 117 times earnings. It has fallen almost 40% in just the last two months. Elon could be totally wiped out in mere days after this crazy deal closes.