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Sergey Brin Net Worth

The engineering half of Google’s founding pair, back in the lab.

By Net Worth Watch Editorial · Reviewed by Net Worth Watch Research

Last updated Nov 3, 2026 · 2 min read

Portrait photograph of Sergey Brin
Photo: The White House, public domain, via Wikimedia Commons

Estimated net worth

$213.9 Billion

USD · As of November 3, 2026

Source of wealth
Alphabet, Private investments
Nationality
United States
Estimate by
Forbes Real-Time Billionaires, 3 November 2026

What is Sergey Brin’s net worth?

Forbes values Sergey Brin at $213.9 billion on 3 November 2026. His position is almost identical in structure to Page’s: a long held Alphabet stake with extra votes attached, plus a small set of personal investments.

His share count is slightly lower, which is the main reason his estimate sits a few billion below his co-founder’s despite the same company driving both fortunes.

Sources of wealth

SourceDetailsApproximate share
AlphabetAbout 5 percent of the company, including Class B shares and voting rights.Nearly all
Private investmentsHealth, aviation and research ventures.Small
Cash and fundsProceeds from occasional share sales.Small

How the fortune was built

Brin was born in Moscow in 1973 and emigrated with his family to the United States in 1979. He studied mathematics and computer science at the University of Maryland, where his father taught, before joining Stanford’s doctoral programme.

At Stanford he collaborated with Page on a project that ranked web pages by citation rather than keyword density. The two founded Google in 1998. Brin led technology and later ran the secretive Google X research lab, which produced self-driving cars, internet balloons and smart contact lenses.

He withdrew from day-to-day management when Page took over Alphabet in 2015 and stepped down from the presidency in 2019. In 2023 he began spending days at Alphabet again, working alongside researchers on the Gemini model family. He does not hold an operating title, but his presence has been read as a statement of intent about the company’s AI priorities.

Holdings and assets

Brin is a frequent donor to Parkinson’s research, motivated by his family’s experience of the disease, and funded the Breakthrough Prize with other technology founders. His personal investments lean toward research-heavy fields rather than consumer brands.

He owns property in California, but no complete public record exists, so we value only individual transactions that have been reported.

How we estimate it

We use Alphabet’s latest proxy filing for share count and the closing price on our valuation date. Unvested awards are excluded. Details of the method are on our methodology page.

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