Elon Musk owns 46.4% of SpaceX, far more than any other shareholder. Here's who owns the rest of the company after SpaceX's historic IPO.

Entrepreneur Elon Musk is savvy when it comes to maintaining control of his companies. He owns 46% of SpaceX.

Investors will can hold SpaceX stock by virtue of owning shares in certain mutual funds and exchange-traded funds.