Apple CEO Tim Cook’s personal net worth has recently crossed the $1 billion mark as the company nears a $2 trillion market value, reports Bloomberg. From the report: It was valued at about $350 billion when Jobs died. Cook, meantime, has joined one of the most elite clubs for CEOs who didn’t actually found the companies they run: his net worth has eclipsed $1 billion, according to calculations by the Bloomberg Billionaires Index. Cook’s net worth estimate is based on an analysis of regulatory filings and applying the market performance of a typical wealthy investor to his proceeds from share sales. Cook, 59, said in 2015 that he plans to give most of his fortune away and has already gifted million of dollars worth of Apple shares. His wealth could be lower if he’s made other undisclosed charitable gifts.