SpaceX priced its IPO at $135 per share Thursday, implying a $1.8 trillion market cap for the company. That boosted Musk’s net worth by $188 billion to an estimated $982 billion, according to Forbes’ calculations. If Tesla’s share price remains unchanged and SpaceX’s stock climbs to $138.50 per share when trading starts Friday, Musk will become the first trillionaire in world history. He’d also become a trillionaire if Tesla’s stock rises from $399 to $424 per share, and SpaceX’s stay at $135, a less likely scenario. Musk, who serves as chairman, CEO and chief technical officer of SpaceX, owns 4.8 billion shares of the rocketmaker, worth $644 billion. He has another 350 million stock options with an exercise price of $8.40 per share, worth $44 billion, giving him a 38% stake in the company, worth $688 billion at the IPO price. Forbes had been valuing Musk’s estimated 40% stake (before dilution from the public offering) at around $500 billion, based on the $1.25 trillion valuation of SpaceX’s merger with Musk’s artificial intelligence and social media company xAI in February. (xAI previously merged with X–formerly Twitter–in March 2025.) Musk also owns just over 10% of $1.5 trillion (market cap) Tesla, worth $165 billion, plus options to acquire another nearly 8% stake, worth $114 billion. Rounding out his net worth are smaller stakes in his brain interface startup Neuralink and his tunneling firm Boring Company, plus several billion dollars’ of wealth from previous Tesla share sales. Not included in Forbes’ estimate of Musk’s net worth: performance-based restricted shares that could boost his stakes in SpaceX and Tesla to 47% and 29%, respectively (before taxes and the cost of unlocking the restricted shares). To earn all that stock, Musk will have to achieve lofty goals like growing SpaceX and Tesla’s market caps to $7.5 trillion and $8.5 trillion, respectively, and establishing a permanent human colony on Mars with at least one million inhabitants.Musk is by far the biggest winner but he isn’t the only person whose fortune soared into orbit thanks to SpaceX. Others include a Saudi prince, Twitter’s cofounder and several SpaceX executives and board members. The newest member of the three-comma club is SpaceX’s longtime chief financial officer Bret Johnsen, who is worth an estimated $1.2 billion, thanks to his 0.07% stake in the rocketmaker (including options). The accountant joins PayPal cofounder, venture capitalist and longtime SpaceX investor and board member Luke Nosek as one of two new billionaires revealed since the rocketmaker filed its IPO prospectus. Nosek is now worth at least $3.4 billion, based on his SpaceX stake of at least 0.19%. Also listed in the prospectus is the rocketmaker’s longtime president and chief operating officer Gwynn Shotwell, who was revealed to own just 0.10% of the company, lower than Forbes’ initial 0.27% estimate. Still, the firm’s 11th employee is doing just fine, with a net worth of $1.7 billion. A number of SpaceX biggest winners were either Twitter or xAI investors, including Prince Alwaleed Bin Talal Alsaud of Saudi Arabia and President Trump’s Middle East envoy Steven Witkoff, who both became SpaceX investors in February, when Musk merged his rocketmaker with his artificial intelligence and social media business xAI Holdings, in a deal that valued the combined company at $1.25 trillion. The February transaction—which valued SpaceX at $1 trillion and xAI Holdings at $250 billion—came less than a year after Musk created xAI Holdings in March 2025 by combining his artificial intelligence startup xAI with his social media company X (formerly Twitter) in a $113 billion merger that some critics characterized as a bailout of the latter company. That’s because that deal valued X at $33 billion, which was almost exactly what Musk and minority investors like Prince Alwaleed and Witkoff paid for the company (excluding debt financing) in 2022. Investor Fidelity, meanwhile, had X valued at just under $10 billion at the end of 2024.Other big winners include high profile venture capital, hedge fund and private equity billionaires whose investment firms bet on SpaceX long ago. That includes Musk’s close friend and SpaceX director Antonio Gracias, whose Valor Equity Partners owns a 3.7% stake worth $68 billion. Ishara S. Kodikara/AFP/Getty Images1. Prince Alwaleed Bin Talal AlsaudEstimated SpaceX Stake (%): 0.28%Estimated SpaceX Stake ($): $5.1 billion Estimated Net Worth: $25.4 billion Prince Alwaleed first invested in Twitter in 2011, before the social media company’s 2013 IPO. After initially opposing Musk’s takeover, Prince Alwaleed ended up keeping his $1.6 billion stake in Twitter (which has since been renamed X) when Musk took it private in 2022. Thanks to that investment–and a smaller one in xAI–Prince Alwaleed now owns SpaceX shares worth $5.1 billion. And that’s excluding his indirect stake held through publicly traded Kingdom Holdings, which owned $4.5 billion of xAI Holdings’ stock when it merged with SpaceX in February. If it held onto that stake it would now be worth $5.7 billion. David M. Benett/Netflix/Getty Images2. Luke Nosek Estimated SpaceX Stake (%): 0.19%Estimated SpaceX Stake ($): $3.4 billion Estimated Net Worth: $3.4 billion Nosek cofounded PayPal with fellow billionaire Peter Thiel and others in 1998, merged it with an online banking startup Musk cofounded called X.com in 2000, and sold the combined company to eBay for $1.5 billion in 2002. Nosek then launched venture capital firm Founders Fund with Thiel in 2006 and served as a general partner until 2017, when he left to cofound VC firm Gigafund. Nosek has been a director of SpaceX ever since he and Founders Fund first invested in the rocketmaker in 2008. Not included in Forbes’ estimate of his net worth: another 0.06% stake in SpaceX worth $1.1 billion, which is owned by an entity called Nosek Capital, LLC. Forbes couldn’t determine whether other investors own any of this stock and a representative for Nosek didn’t respond to requests for comment. Evan Vucci/AP3. Larry EllisonEstimated SpaceX Stake (%): 0.15%Estimated SpaceX Stake ($): $2.7 billion Estimated Net Worth: $231 billionOracle’s cofounder, chairman and chief technology officer invested $1 billion in Musk’s Twitter takeover in October 2022, after concluding his nearly four-year term as a director of Musk’s electric vehicle maker Tesla two months earlier. (Forbes estimates that Ellison still owns Tesla shares worth more than $14 billion.) According to text messages released as part of legal proceedings related to the Twitter deal, when Musk asked Ellison how much he’d like to invest in the transaction, Ellison replied, “a billion…or whatever you recommend.” His reasoning: “It has huge potential…and it would be lots of fun.” Joe Raedle/Getty Images4. Jack Dorsey Estimated SpaceX Stake (%): 0.14%Estimated SpaceX Stake ($): $2.6 billion Estimated Net Worth: $6.7 billion Dorsey cofounded Twitter in 2006 and was the company’s CEO until 2008, when he left to cofound payments company Block (formerly known as Square) a year later. He returned as Twitter’s CEO in 2015 and served in that role for another six years before resigning for good in 2021. Dorsey stepped down from Twitter’s board in May 2022 but rolled forward his nearly $1 billion stake in the company when Musk took it private five months later. Lluis Gene/AFP/Getty Images5. Gwynne ShotwellSpaceX Stake (%): 0.10% (including options)SpaceX Stake ($): $1.7 billion Estimated Net Worth: $1.7 billion Shotwell met Musk, who recruited her to be SpaceX’s first vice president of business development, while visiting a former colleague who had gone to work for the company. “I dithered for about a month” before finally taking the job, she once told a group of Stanford students. She joined the company as its 11th employee in 2002 after working for a smaller rocketmaker, and was promoted to president and chief operating officer in 2008. Now, Shotwell, who has been credited with running SpaceX’s day-to-day operations as Musk split his attention between his six companies (before X and xAI became part of SpaceX), is a billionaire thanks to the SpaceX stock she has received as compensation. Victor Decolongon/Getty Images6. Bret Johnsen SpaceX Stake (%): 0.07% (including options)SpaceX Stake ($): $1.2 billion Estimated Net Worth: $1.2 billion Now one of the world’s richest CPA’s, Johnson worked for nearly a decade at semiconductor giant Broadcom, where he rose to the role of vice president and corporate controller. He left in 2008 to become chief financial officer of another publicly traded semiconductor company called Mindspeed Technologies and served in that role for three years before being hired as SpaceX’s CFO in 2011. Ethan Pines for Forbes7. Tom Mueller Estimated SpaceX Stake (%): 0.06%Estimated SpaceX Stake ($): $1.1 billion Estimated Net Worth: $2 billion Raised in rural Idaho, Mueller joined SpaceX as employee No. 1 in 2002. As head of propulsion engineering, he led the design and development of rocket engines for the company’s Falcon launch vehicles and Dragon spacecraft before leaving in 2020 to found and run his own startup, Impulse Space. Forbes estimates that Mueller owns 21% of Impulse, which private investors valued at $4.3 billion in June. Todd Owyoung/NBC/Getty Images8. Kimbal Musk Estimated SpaceX Stake (%): 0.04%Estimated SpaceX Stake ($): $760 millionEstimated Net Worth: $1.6 billionElon’s younger brother served on SpaceX’s board from its founding in 2002 to 2022. He has also been a director of Tesla since 2004. A professional chef whose Kitchen Restaurant Group has locations in Austin, Denver and Boulder (where he lives), Kimbal also cofounded and runs Nova Sky Stories, a drone light show startup whose clients include Tesla. But he’s a billionaire thanks to his small stakes in Elon’s massive companies. Kimbal owns more than $500 million of Tesla stock and has netted over $300 million (pretax) from exercising stock options and selling the EV maker’s shares. Mandel Ngan/AFP/Getty Images9. Steven Witkoff Estimated SpaceX Stake (%): 0.01%Estimated SpaceX Stake ($): $270 million Estimated Net Worth: $2.4 billionThe New York real estate billionaire was appointed as his longtime friend President Donald Trump’s special envoy to the Middle East in 2024. His sons cofounded crypto project World Liberty Financial with Trump’s sons Eric and Don Jr. that same year. According to his latest political disclosure, Witkoff is an investor in SpaceX thanks to the $100 million he contributed to Musk’s Twitter takeover in 2022. More from ForbesForbesFrom Rockefeller To Musk: The Wealth Boom That’s Leading To The First TrillionaireBy Chase Peterson-WithornForbesForbes 250: America’s Most Successful Living ImmigrantsBy Alex KnappForbesThe Highest-Paid Players At The 2026 World CupBy Brett KnightForbesWhy Selling Your SpaceX Shares Too Quickly Could Cost YouBy Brandon KochkodinForbesSpaceX Left California. Its IPO Payday Did Not.By Alan Ohnsman