When Founders Fund invested in SpaceX in 2008, the company was far from what it’s become: a rocket and satellite maker that now also owns a large language model and a social media network.

On Monday, founder Elon Musk made SpaceX into that company when he confirmed reports that it had acquired xAI—which last year merged with X, formerly known as Twitter.

The new combined company is reportedly valued at $1.25 trillion and is prepping for what could be the largest IPO in Silicon Valley history later this year.

Firms like Gigafund and 8VC that took a bet on Musk’s private takeover of a social network for 280-character quips are now finding themselves on a new cap table of a company planning to build data centers in space.

And just last month, investors like Qatar’s sovereign wealth fund and Fidelity Investments, which signed on to fund xAI’s $20 billion Series E, could now be celebrating an IPO in a matter of months.

The map below, based on PitchBook data, news reports and investor disclosures, outlines the universe of investors in the Elon Musk-onomy.

https://www.cnbc.com/amp/2026/02/03/musk-xai-spacex-biggest-merger-ever.html