Elon Musk has mandated two classes of shares, binding arbitration, and many other policies shareholder advocates hate in the Space X S-1.

SpaceX's S-1 paperwork, which pulls back the curtain on the rocket company's finances, is a required step ahead of its hotly anticipated IPO.

SpaceX has finally made the contents of its IPO filing public, weeks ahead of what is expected to be the largest IPO ever.