Google cofounder Sergey Brin has become the world’s third-richest person after a sharp rise in Alphabet’s share price pushed the company’s market value beyond $4 trillion. According to the Forbes Real-Time Billionaires List, Brin has overtaken Amazon founder Jeff Bezos and Oracle cofounder Larry Ellison in global wealth rankings.
The jump in Brin’s wealth comes as Alphabet, the parent company of Google, gained strong investor confidence due to its rapid progress in artificial intelligence. Alphabet recently joined an elite group of companies to cross the $4-trillion market capitalisation mark, reflecting strong demand for its AI products and services.
Alphabet shares rose about 1.3 per cent in the latest trading session, adding to a strong rally seen over the past year. In contrast, shares of Amazon and Oracle slipped during the same period, contributing to the change in billionaire rankings.
A major boost for Alphabet came from a new partnership with Apple. Apple announced that it will use Google’s Gemini artificial intelligence models to power future versions of its digital assistant Siri and other AI-driven features. This deal strengthened Alphabet’s position as a key player in the global AI race and reassured investors about its long-term growth.
In 2025, Alphabet stock rose nearly 65 per cent, marking its best annual performance in over a decade. Investors have shown growing interest in the company’s AI offerings, including advanced Gemini models and custom-built AI chips, which are expected to drive future revenue.
Sergey Brin’s net worth is now estimated at around $255 billion. He is ranked behind only Elon Musk and his Google cofounder Larry Page, who remains the second-richest person in the world. Jeff Bezos has slipped to fourth place with an estimated fortune of about $253 billion, while Larry Ellison follows close behind.
Although Brin stepped back from daily management at Alphabet, he remains actively involved in major technology decisions. He is also known for donating large portions of his wealth to charitable causes, including medical research.
The latest reshuffle among the world’s richest highlights how artificial intelligence and big tech partnerships are reshaping global wealth and corporate power.