Elon Musk finally has Warren Buffett as a shareholder — sort of

Elon Musk has long wanted to call Warren Buffett a shareholder.

Mike Blake/Reuters; Kevin Lamarque/Reuters Elon Musk has long wished to have Warren Buffett as a shareholder.

Buffett's Berkshire Hathaway now holds an indirect stake in Musk's SpaceX via Alphabet.

Berkshire owned nearly 1% of Alphabet, which in turn owned about 4% of SpaceX, recent filings show.

Elon Musk has wanted Warren Buffett as a shareholder for years.

His wish has finally come true, in a sense.

As of June 30, Buffett 's Berkshire Hathaway indirectly owned about 0.04% of SpaceX, a stake worth over $800 million, according to Business Insider's calculations.

This " look-through stake " — a term coined by Buffett — is based on Berkshire owning part of Alphabet, which in turn owns part of SpaceX.

Berkshire reported a roughly 0.9% stake in Alphabet, worth about $38 billion, in its second-quarter portfolio update on Friday.

Alphabet revealed in its portfolio filing that it owned about 4%, or $94 billion worth, of SpaceX on June 30.

Berkshire's stake in Alphabet represents a proportional claim on Alphabet's assets, including its SpaceX holding.

Its piece of the $94 billion position was worth about $815 million at the end of June, but closer to $700 million at Tuesday's market close, following share-price declines for both Alphabet and SpaceX this quarter.

That's a tiny financial interest for Berkshire, which owned about $1.3 trillion of assets at the end of June , including $324 billion of stocks.

But Alphabet 's stake in SpaceX is worth about $79 billion today, or roughly 2% of Alphabet's market value, making it a material asset for the search, advertising, and AI giant.