Alphabet made its initial $900 million investment in SpaceX in 2015 [1, 2, 3]. By June 30, 2026, it held approximately 551.2 million shares in the space company [1, 2, 3]. That day, with SpaceX shares trading at $170.86, Alphabet's stake was valued at roughly $94 billion, representing more than a 100-fold increase over a decade [1, 2, 3].
SpaceX went public on June 12, 2026, pricing its shares at $135 and raising about $86 billion in the IPO [1, 2, 3]. After the IPO, Alphabet became the largest single institutional shareholder in SpaceX [1, 2, 3]. Other major investors include Gigafund Management with 171.8 million shares, Baillie Gifford with 51.4 million, BlackRock with 51 million, and the Ontario Teachers’ Pension Plan holding 50.7 million shares [1].
On August 13, 2026, SpaceX’s closing share price was $146.15, 8.3% above the IPO price but 14% below the late June high [2, 3]. At that price, Alphabet’s holdings remained worth about $81.8 billion, roughly 90 times its original $900 million outlay [1, 2, 3].
The company’s market value and Alphabet’s stake illustrate substantial growth in private and public valuations over the past decade. Alphabet’s significant shareholding underscores its ongoing commitment to space exploration and commercial space technology.
Alphabet’s SpaceX stake value as of June 30, 2026, remains the most recent detailed valuation update available [1, 2, 3].
