SpaceX IPO gives Elon Musk sweeping power, curbs shareholder rights SpaceX's IPO will grant Elon Musk unprecedented executive authority through supervoting shares, mandatory arbitration, and stricter shareholder proposal rules. These policies, combined with Texas corporate law, significantly limit investor protections and challenges to management. Despite these restrictions, many investors are expected to participate due to Musk's track record and the potential for high returns.