SpaceX is about to go public, with Elon Musk holding approximately 42% of the shares

According to the S-1 registration statement submitted to the US SEC on May 20th, Elon Musk's stake in SpaceX was approximately 42% before going public and diluted to approximately 40.5% after going public. Elon Musk's total holdings of 6.4 billion SpaceX shares will be locked for 366 days, during which they cannot be sold. Forbes lists Elon Musk's net worth as $982.6 billion.