Sergey Brin, the co-founder of Google, has become the world’s third-richest person. He moved ahead of Amazon founder Jeff Bezos and Oracle chairman Larry Ellison after shares of Alphabet, Google’s parent company, surged and helped push its market value to $4 trillion.
On Tuesday, Brin’s rising wealth placed him just behind his Google co-founder Larry Page and Tesla CEO Elon Musk. The jump comes as Alphabet’s stock continues to gain strength, driven by strong performance in artificial intelligence and a major new partnership with Apple.
Alphabet shares rose 1.3% on Tuesday afternoon, trading just above $337 per share. Earlier in the day, the stock had climbed as much as 2.4%. Over the past seven trading days, Alphabet stock has gained about 6.6%, showing strong momentum in the market.
At the same time, other major tech stocks moved in the opposite direction. Oracle shares fell around 1.5%, and Amazon’s stock declined nearly 2%. These drops helped Brin move past both Larry Ellison and Jeff Bezos in the global wealth rankings.
On Monday, Alphabet officially became the fourth company in history to reach a $4 trillion market value. It joined Nvidia, Microsoft, and Apple in hitting this milestone. However, Microsoft and Apple have since slipped below the $4 trillion mark, while Alphabet has managed to stay close to that level.
Another major reason for Alphabet’s recent stock rise was a new agreement between Apple and Google. Apple announced that it will use Google’s Gemini AI as the foundation for its artificial intelligence models. This partnership will also support the next generation of Siri, Apple’s virtual assistant and chatbot. Investors reacted positively to this news, viewing it as a strong sign of Google’s leadership in AI.
Alphabet had an exceptional year in 2025. The company’s stock rose by 65% during the year, marking its biggest annual gain since 2009, when shares jumped nearly 93%. This growth reflects investor confidence in Google’s long-term strategy, especially in artificial intelligence, cloud services, and advanced hardware.
According to Forbes’ Real-Time Billionaires List, Sergey Brin’s net worth increased by $4.9 billion, or about 1.9%, reaching $255.6 billion. This places him behind Larry Page, whose net worth is estimated at $277 billion, and Elon Musk, who remains the world’s richest person with a fortune of about $725.3 billion.
Jeff Bezos now ranks as the fourth-richest person in the world, with an estimated net worth of $253.2 billion. Larry Ellison follows closely in fifth place, with a net worth of around $251.3 billion. The rankings remain very close, and small stock movements can quickly change positions among the world’s top billionaires.
Brin owns fewer Alphabet Class C shares than Page and has been more active in selling his holdings in recent years. He has also donated millions of dollars’ worth of Alphabet and Tesla shares to support research into Parkinson’s disease, a cause he has publicly supported.
Alphabet’s rise is closely linked to its growing strength in artificial intelligence. In 2025, the company emerged as one of the leading players in AI, even as some investors worried that AI-related tech stocks were becoming overvalued.
In November, Google released Gemini 3, the newest version of its AI model. The launch received strong praise from developers and analysts. Just weeks earlier, Google introduced Ironwood, its seventh-generation AI chip. These advances placed Alphabet in direct competition with Nvidia, which currently dominates the AI chip market.
Industry analysts have taken notice. Citi analysts said earlier this month that Alphabet is one of their top growth picks for 2026. They noted that around 70% of Google Cloud customers now use its AI products. According to Citi, Google has the right combination of advanced chips, strong infrastructure, and powerful AI models to meet rising demand.
Cantor Fitzgerald analyst Deepak Mathivanan also praised Google, saying the company has the “strongest footprint” among AI firms. He pointed out that Google’s decade-long investments in AI make it difficult for competitors to catch up quickly.
With strong stock performance, major AI breakthroughs, and key partnerships, Alphabet’s momentum has pushed Sergey Brin higher on the global wealth list—and shows no clear signs of slowing down.
Published: 5th February 2026
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