SpaceX is preparing to sell insider shares in a transaction that would value Elon Musk’s rocket and satellite maker at a valuation higher than OpenAI’s record-setting $500 billion, people familiar with the matter said.
The company’s latest tender offer could value SpaceX at as much as $800 billion, said the people, who asked not to be identified as the information isn’t public. SpaceX could pursue an initial public offering as soon as late next year, one person said.
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.
Another person briefed on the matter said that the share price under discussion is higher than $400 apiece, which would value SpaceX at between $750 billion and $800 billion, though the details could change.
If confirmed, it would make SpaceX once again the world’s most valuable closely held company, vaulting past the previous record of $500 billion that ChatGPT owner OpenAI set in October. Play Video
The latest figure would be a substantial increase from the $212 a share set in July, when the company raised money and sold shares at a valuation of $400 billion.
A representative for SpaceX didn’t respond to a request for comment. The Wall Street Journal and Financial Times, citing unnamed people familiar with the matter, earlier reported that a deal would value SpaceX at $800 billion.
News of SpaceX’s valuation sent shares of EchoStar Corp., a satellite TV and wireless company, up as much as 18%. Last month, EchoStar had agreed to sell spectrum licenses to SpaceX for $2.6 billion, adding to an earlier agreement to sell about $17 billion in wireless spectrum to Musk’s company.
The world’s most prolific rocket launcher, SpaceX dominates the space industry with its Falcon 9 rocket that lifts satellites and people to orbit.
SpaceX is also the industry leader in providing internet services from low-Earth orbit through Starlink, a system of more than 9,000 satellites that is far ahead of competitors including Amazon.com Inc.’s Amazon Leo.
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SpaceX is among an elite group of companies that have the ability to raise funds at $100 billion-plus valuations while delaying or denying they have any plan to go public.
An IPO of the company at an $800 billion value would vault SpaceX into another rarefied group — the 20 largest public companies, a few notches below Musk’s Tesla Inc.
If SpaceX sold 5% of the company at that valuation, it would have to sell $40 billion of stock — making it the biggest IPO of all time, well above Saudi Aramco’s $29 billion listing in 2019. The firm sold just 1.5% of the company in that offering, a much smaller slice than the majority of publicly traded firms make available.
A listing would also subject SpaceX to the volatility of being a public company, versus private firms whose valuations are closely guarded secrets. Space and defense company IPOs have had a mixed reception in 2025. Karman Holdings Inc.’s stock has nearly tripled since its debut, while Firefly Aerospace Inc. and Voyager Technologies Inc. have plunged by double-digit percentages since their debuts.
SpaceX executives have repeatedly floated the idea of spinning off SpaceX’s Starlink business into a separate, publicly traded company — a concept President Gwynne Shotwell first suggested in 2020.
However, Musk cast doubt on the prospect publicly over the years and Chief Financial Officer Bret Johnsen said in 2024 that a Starlink IPO would be something that would take place more likely “in the years to come.”
The Information, citing people familiar with the discussions, separately reported on Friday that SpaceX has told investors and financial institution representatives that it’s aiming for an IPO of the entire company in the second half of next year.
A so-called tender or secondary offering, through which employees and some early shareholders can sell shares, provides investors in closely held companies such as SpaceX a way to generate liquidity.
SpaceX is working to develop its new Starship vehicle, advertised as the most powerful rocket ever developed to loft huge numbers of Starlink satellites as well as carry cargo and people to moon and, eventually, Mars.
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