SpaceX Closed Its $60B Cursor Buyout, and Paid Zero Cash

TL;DR

SpaceX closed its $60 billion acquisition of Cursor on August 14, 2026, according to an SEC 8-K filing and Cursor's own announcement. The deal, first agreed on June 16, is entirely stock: 389.3 million shares of SpaceX Class A common stock for Cursor's common and preferred equity, with no cash changing hands. Cursor, legally known as Anysphere, is now a wholly owned subsidiary reporting into SpaceXAI, and it's already getting the thing it said it needed most: compute. The company gets access to SpaceX's Colossus supercomputer, the same 200,000-GPU cluster that just trained Grok 4.6.

The Paperwork Behind the Number

Acquisition headlines usually stop at the valuation. The 8-K filed with the SEC goes further, and the mechanics are the actual story. SpaceX issued 389,289,254 Class A shares to convert Cursor's outstanding common and preferred stock, priced using the volume-weighted average closing price of SpaceX stock over the seven trading days before closing. On top of that, SpaceX assumed roughly 44.4 million converted stock options and about 30.9 million converted RSUs (1.75 million already vested, the rest still vesting), rather than cashing employees out.

Add it up and the pattern is clear: every dollar of the $60 billion valuation came from SpaceX's own stock, not its balance sheet. That matters because SpaceX just raised somewhere between $75 billion and $85.7 billion in its June IPO. Instead of spending that war chest, it used freshly minted shares to absorb one of the most-used AI coding tools on the market and kept the cash sitting in the bank.

From Handshake to Merger Sub

The path here took four months. SpaceX and Cursor first partnered in April on model training, with an option for SpaceX to acquire the company outright. That April term sheet reportedly came with a blunt clause: buy Cursor for $60 billion, or walk away and pay a $10 billion break-up fee instead. Even by 2026 AI valuations, that is an expensive way to get cold feet, and it tells you how badly SpaceX wanted this locked in.

On June 16, days after SpaceX's Nasdaq debut, the two sides signed the formal agreement at that same $60 billion figure, per TechCrunch. It was a rich number: Cursor had reportedly been raising a separate $2 billion round at a $50 billion valuation around the same time. On the closing date, a SpaceX subsidiary called X67 Inc., a name with roughly zero rocket-company flair, merged directly into Anysphere, Inc. to complete the transaction.

What Cursor Users Actually Get

The integration isn't hypothetical. Per Yahoo Finance, three concrete changes are already live. First, SpaceX's xAI models are now first-party inside Cursor, and the company says it jointly trained Grok 4.5 and Grok 4.6 using "trillions of tokens" of Cursor's own coding data. Second, SpaceX's new Grok Bot agent is bundled into Cursor Ultra and Cursor Premium Teams subscriptions at no extra charge. Third, and most consequential long-term, Cursor's own Composer model line gets direct access to Colossus.

Cursor had been blunt about why it needed this. In its own words, the team had "wanted to push our training efforts much further, but we've been bottlenecked by compute." That's the AI-lab version of a bakery with a line out the door and a single oven. Colossus, SpaceX's cluster of roughly 200,000 Nvidia GPUs, is Cursor trading that one oven for an industrial kitchen with 200,000 burners.

Why a Rocket Company Wanted a Text Editor

SpaceX folded Elon Musk's xAI into itself earlier in 2026, inheriting Grok and its compute stack. But Grok's coding assistant kept losing developers to Claude Code and Codex, tools already wired into the editors people actually work in every day. Buying Cursor solves that problem in one move: instead of convincing developers to switch tools, SpaceX now owns the tool they already switched to.

For Cursor's existing developer base, the practical shift is upstream, in training capacity and default models, not in the interface they open every morning. Whether "first-party Grok inside your editor" stays optional as SpaceX's incentives assert themselves is the thing worth watching over the next few release cycles.

Key Takeaways

• The deal closed August 14, 2026, four months after SpaceX and Cursor first partnered on compute in April and two months after signing the formal $60 billion agreement on June 16
• It's an all-stock deal: 389.3 million SpaceX Class A shares for Cursor's common and preferred stock, plus converted options and RSUs, with zero cash consideration
• SpaceX kept its IPO cash: the roughly $75-85.7 billion raised in June's Nasdaq debut sat untouched; equity paid for the whole acquisition
• Cursor becomes Anysphere, Inc., a wholly owned SpaceX subsidiary, reporting into the SpaceXAI division alongside xAI's Grok team
• Cursor gets Colossus: access to SpaceX's roughly 200,000-GPU supercomputer, resolving the compute bottleneck Cursor says had capped its Composer model training
• Grok is now first-party in Cursor, with Grok Bot bundled free into Ultra and Premium Teams plans, a distribution win SpaceX badly needed for its coding models

Sources: Cursor: Cursor is now a part of SpaceX, Cursor: Cursor partners with SpaceX on model training, SEC 8-K filing via StockTitan, TechCrunch: SpaceX to acquire Cursor for $60B in stock, Yahoo Finance: 3 ways SpaceX and Cursor are already working together, CNBC: SpaceX raises $75 billion in record-setting IPO