SpaceX is preparing to sell insider shares in a transaction that would value Elon Musk’s rocket and satellite maker at as much as $800 billion, people familiar with the matter said, reclaiming the title of the world’s most valuable private company.

The details, discussed by SpaceX’s board of directors on Thursday at its Starbase hub in Texas, could change based on interest from insider sellers and buyers or other factors, said some of the people, who asked not to be identified as the information isn’t public. SpaceX is also exploring a possible initial public offering as soon as late next year, one of the people said.

Another person briefed on the matter said that the price under discussion for the sale of some employees and investors’ shares is higher than $400 apiece, which would value

See Full Page