SpaceX Sets IPO at $1.77 Trillion as xAI Faces Grok Whistleblower Suit

SAN FRANCISCO

By James Brown

SpaceX priced what would be the largest IPO in history at $1.77 trillion, while a former xAI engineer sued Musk's AI firm over Grok chatbot safety concerns.

SpaceX has set the initial pricing for its long-awaited public offering at a $1.77 trillion valuation, Variety reported Wednesday, in what would rank as the largest initial public offering in history if executed at the disclosed terms. The pricing landed alongside a fresh legal challenge to a separate Elon Musk-owned entity, xAI, in the form of a lawsuit filed by a former engineer who alleges he was fired for raising safety concerns about the Grok chatbot.

Together the two developments captured the breadth of pressure now sitting on Mr. Musk's overlapping corporate empire — SpaceX, xAI, Tesla and the social media platform X — as he simultaneously tries to convert his rocket business into the most valuable public company in U.S. history and defend his AI division from a high-profile internal accusation.

The SpaceX pricing was first reported by Variety. Via Satellite, citing the same banking filings, said the offering is being priced "banking on faith in Elon Musk and massive AI growth," a characterization that mirrors how Wall Street analysts have framed the deal in private notes to clients. The Boston Herald, in a separate piece headlined "SpaceX poised to make history," noted that the size of the offering — if completed at the disclosed valuation — would surpass any prior IPO by a wide margin.

The valuation has not been independently corroborated by SpaceX itself, which has historically not commented on speculation regarding its corporate finance plans. The S-1 registration statement governing the offering, if filed, has not yet been publicly accessible through standard SEC channels.

CNBC reported Wednesday evening that stock-index futures rose ahead of the offering's opening, with traders treating the IPO as a near-certain market-moving event. SpaceX shares were not yet trading on any public exchange at the time of writing, the network noted.

The market enthusiasm sits awkwardly alongside the xAI legal news. The Guardian reported Wednesday that Mr. Musk's xAI is being sued by an engineer who alleges he was fired for raising internal concerns about the safety and behavior of Grok, the company's flagship chatbot. The lawsuit, the paper reported, claims that the dismissal was retaliatory and that the engineer's underlying concerns about the chatbot's outputs were not addressed before his termination.

The Guardian piece is the first detailed public account of internal safety friction at xAI. xAI did not immediately respond to a request for comment. Mr. Musk has not addressed the lawsuit publicly.

The implications for the SpaceX IPO are not direct — the two companies are legally separate — but Wall Street observers have long noted that Mr. Musk's overlapping involvement across multiple companies tends to mean that reputational events at one entity bleed into market perceptions of the others. A successful SpaceX IPO would substantially expand Mr. Musk's personal wealth on paper; an adverse legal outcome at xAI could constrain his AI ambitions during a period when the broader AI sector is increasingly under regulatory scrutiny.

That regulatory scrutiny intensified separately this week. Telehealth.org reported Wednesday that Mr. Musk has joined the Department of Justice in challenging the constitutionality of a Colorado state law governing AI deployment in regulated industries. The Colorado law, passed in 2024, requires companies deploying AI in employment, lending and insurance decisions to conduct algorithmic impact assessments and disclose their methodologies. Mr. Musk's challenge, the publication reported, takes the position that the law constitutes an unconstitutional burden on interstate commerce.

The case is not yet on any expedited court docket. Colorado's attorney general's office said in a brief statement that it would defend the law "vigorously" and that the state believed the statute fell well within state regulatory authority.

For traders preparing for the SpaceX IPO opening, the immediate questions are straightforward. The price at which SpaceX shares begin trading will, in itself, generate one of the largest single-day moves in U.S. equity market history. Whether the $1.77 trillion valuation holds in secondary trading will depend on how investors treat the company's mix of high-risk, high-reward businesses — particularly the Starlink consumer broadband service and the still-developing Starship launch program — relative to the gravity-defying valuations of frontier AI firms over the past 24 months.

Tesla shares were broadly flat Wednesday after a moderate intraday rally, the New York Times noted in a separate piece reflecting on how Tesla's own 2010 IPO created the playbook that SpaceX is now following. Barron's wrote that Tesla shareholders, in particular, "need the SpaceX IPO to happen already" because of the way both companies' valuations have become intertwined through Mr. Musk's personal involvement and rumored merger speculation.

The xAI lawsuit, the Colorado challenge, and the SpaceX offering combine to put Mr. Musk's overlapping ventures at perhaps their most consequential single inflection point since the early Tesla days. The next two weeks of news flow — and the IPO opening itself — will substantially determine whether the present moment is remembered as the peak of the Musk corporate ascent or merely a meaningful intermediate milestone.