Nvidia’s stake is tied to the $2 billion investment in Musk’s AI startup xAI, which SpaceX absorbed in early 2026. NVDA invested in 2025 through a special vehicle designed to secure Nvidia chips for xAI’s compute buildout.
Meanwhile, Alphabet’s stake traces back to its $900 million investment made more than a decade ago. That early bet has turned into one of the most successful venture moves in modern tech. It is worth mentioning that most of Alphabet’s shares are still locked up. About $80 billion is under early‑release limits, with another $14.1 billion restricted until late 2027.
Other Major Stakes Revealed Today
Separately, Harvard Management Co. revealed a $2.2 billion stake in SpaceX, showing how the school’s endowment has gained from an early bet on Elon Musk’s rocket firm. The filing lists SpaceX as Harvard’s largest single stock holding, part of the $4.3 billion in U.S. equities it reported. Harvard’s endowment stood at $57 billion as of June 2025.
Interestingly, Musk himself revealed a 48.4% ownership stake in SpaceX valued at over $900 billion as of June 2026. Also, Australia’s richest person, Gina Rinehart, disclosed a $1.4 billion stake in SPCX stock.
