His net worth is listed at $4.1 Billion in Forbes, making this "cash out" about 25% of his net worth. Not 5%. The concern is that he's cashing out a large $ am

His net worth is listed at $4.1 Billion in Forbes, making this "cash out" about 25% of his net worth. Not 5%. The concern is that he's cashing out a large $ amount ($700 million) before the IPO, more than he needs to live, which may signify that he values the cash now over holding the stock. Which is not a good look considering the IPO is trying to get people to trade their cash for stock.