According to the S-1 registration statement for an initial public offering (IPO) filed by Elon Musk's space company SpaceX with the U.S. Securities and Exchange Commission (SEC) on the 20th (local time), SpaceX's average purchase price for the Bitcoin it holds was $35,324. Previously, Coinness reported that SpaceX holds 18,712 BTC. SpaceX appears to have invested approximately $661 million to acquire Bitcoin, and it is currently managed by an external custodian.