Back in the Lab, Not Just on the Cap Table
Brin gave up his formal Alphabet role in 2019, but he's since returned to hands-on work on the company's AI push. He isn't CEO, yet he holds major voting power and deep technical credibility — and as Google leans on its Gemini AI to defend search against competitors, his fortune is directly tied to whether that bet works.
Giving Away $700 Million in Alphabet Stock
In 2025, Brin gave away Alphabet shares worth roughly $700 million, a reminder that even as his paper fortune swings by tens of billions with Alphabet's stock price, a meaningful slice of it has already been moved into philanthropy.
How the $243.34B Breaks Down
He holds an estimated 670,000,000 shares of GOOGL worth $228.34B at the current price — about 94% of his total net worth.
The remaining $15.00B is a static estimate for privately-held assets, cash, and other holdings that don't have a live public price — this portion doesn't move minute-to-minute like the GOOGL stake does.
How Sergey Got Here
Sergey Brin co-founded Google with Larry Page and served as president of Alphabet until 2019. Born in Moscow, he emigrated to the United States as a child. He remains a controlling shareholder and has returned to hands-on work on Google's AI efforts.
- Born in Moscow, in the former Soviet Union.
- Co-created the PageRank algorithm with Larry Page.
- Has been closely involved in Alphabet's AI and moonshot projects.
Sergey's Net Worth: FAQ
- What is Sergey Brin's net worth in 2026?
- As of the latest update, Sergey Brin's real-time net worth is an estimated $243.34B, ranking #5 on our live world list. This figure updates continuously as markets move.
- How is Sergey Brin's net worth calculated?
- Most of it comes from his publicly-traded stake in Alphabet (Google) (GOOGL), which we price from the live share price. We add a static estimate of $15.00B for private holdings, cash, and other assets.
- Is this a real-time, live net worth figure?
- The public-stock portion is live and updates continuously while markets are open. Any privately-held portion is a directional estimate we update by hand, not a live feed. This is an independent estimate, not affiliated with Forbes or Bloomberg.
Net worth is an estimate derived from public stock holdings plus a static estimate for private assets — directional, not audited, and not affiliated with Forbes or Bloomberg. See Sergey's full profile →