Elon Musk, the CEO of SpaceX and Tesla, just made history by becoming the first individual to have a net worth exceeding $400 billion. This accomplishment followed SpaceXs massive insider share sale, which raised the companys valuation to $350 billion after $1.25 billion was sold.SpaceX is the most valuable private startup in the world, with Musk owning 42% of its shares. ..Read More