News Funding & M&A

xAI general counsel warns staff to limit Cursor contact ahead of $60B SpaceX acquisition window

· by Pondero Newsdesk

xAI's general counsel issued guidelines on May 26 restricting staff contact with Cursor employees, weeks after the two teams began working together inside xAI offices. The warning followed SpaceX's IPO filing and a disclosed 30-day option to buy Cursor for $60 billion once trading begins.

xAI general counsel warns staff to limit Cursor contact ahead of $60B SpaceX acquisition window

xAI general counsel James Burnham sent guidelines to all xAI employees on May 26, 2026, instructing them to keep contact with Cursor personnel to what the existing technical partnership requires. The directive arrived weeks after Cursor staff had already been working inside xAI offices, per Bloomberg reporting cited by The Next Web and PYMNTS.

What

Burnham, a former chief lawyer at the Department of Government Efficiency, reminded staff that xAI and Cursor remain legally separate entities and must continue to operate independently until any deal clears regulatory review. The antitrust risk at issue is what regulators call "gun-jumping," the blending of assets or joint business decisions between two companies before the relevant authorities, at present the Justice Department or Federal Trade Commission, have approved a transaction. Employees were told their conversations could be subpoenaed during that review. Any evidence of improper pre-deal coordination could delay or block the acquisition entirely.

The partnership itself was announced April 21, 2026. Cursor's blog post on that date said the company was joining with SpaceX to access xAI's Colossus training supercomputer, having hit a compute bottleneck after shipping its Composer, Composer 1.5, and Composer 2 models in rapid succession. SpaceX confirmed the partnership in a post on X the same day and disclosed that Cursor granted SpaceX a right to acquire the company for $60 billion, or pay a $10 billion breakup fee if it does not exercise that option by end of 2026, per the SpaceX X post.

Burnham's guidelines draw a line between what is allowed and what is not. xAI engineers may share data and code with Cursor for joint model training and may use intellectual property from either company for developing the shared model. Using Cursor resources for anything outside that scope is prohibited. The guidance was still arriving after the two teams had been sharing office space and working on joint projects for weeks, per The Next Web.

Why it matters

The timing matters for Cursor users and developers watching the acquisition. SpaceX filed IPO paperwork in the same week that Burnham sent his memo, per The Next Web. The company plans to list on Nasdaq under the ticker SPCX at a valuation of roughly $1.75 trillion, per The Next Web, and the 30-day acquisition window for Cursor opens shortly after trading begins. Reuters and CNBC have projected a SpaceX roadshow starting June 4 and trading beginning June 12, per The Next Web. If those dates hold, SpaceX would have until around July 12 to formally announce the Cursor purchase.

Cursor entered this situation from a position of considerable commercial strength. The company reached $2 billion in annualized recurring revenue by February 2026 and counts 67 percent of the Fortune 500 among its users, per The Next Web. Cursor is the fastest-scaling B2B software company on record by those figures, per The Next Web. That revenue trajectory gives SpaceX a strong incentive to complete the acquisition cleanly rather than risk it in regulatory review.

The broader context inside SpaceX and xAI adds a layer of operational uncertainty. SpaceX absorbed xAI in a $1.25 trillion all-stock merger in February 2026, per The Next Web. Since then, all 11 of xAI's original co-founders have departed, per The Next Web. Michael Nicolls, a SpaceX vice president who led Starlink engineering, has taken over engineering at the unit now called SpaceXAI. Nicolls has said publicly that the company is "clearly behind" competitors, per The Next Web. xAI cut staff in March after Elon Musk grew frustrated with its coding performance relative to Anthropic's Claude Code and OpenAI's Codex, per The Next Web, and layoffs continued in recent weeks alongside new hires.

Context and reactions

The gun-jumping concern is not unusual in M&A. Standard antitrust counsel advises companies pursuing acquisitions to keep operations separate until clearance arrives. What is unusual here is the sequence: the partnership, which included Cursor staff working at xAI offices and joint model training on Colossus, began before the acquisition option was publicly disclosed and before formal antitrust counsel had set the boundaries. Burnham's memo is an attempt to retrofit those boundaries after the fact.

For a company of Cursor's commercial scale, the optics of the antitrust review matter as much as the legal outcome. SpaceX's IPO registration has attracted attention over its cross-entity conflicts: SpaceX holds Starlink contracts with the US government, absorbed a major AI lab, and now holds an option on the leading AI coding tool used by two-thirds of the Fortune 500. That combination will draw scrutiny regardless of the gun-jumping question specifically.

What to watch next

SpaceX's projected June 12 trading date is the next concrete milestone, per The Next Web. Once shares begin trading, the 30-day acquisition window opens. Watch for any filing by the Justice Department or FTC signaling a review of the Cursor acquisition specifically. If regulators move to investigate, that timeline could extend well past mid-July and the $10 billion breakup fee disclosed in SpaceX's X post could come into play.

Sources