9. Sergey Brin
Net worth: $130.4 billion
Source: Google
Age: 51
Residence: Los Altos, California
Citizenship: U.S.
Brin cofounded search engine Google with fellow Stanford computer science PhD candidate Larry Page. Like Page, he currently serves as a board member of Google’s parent company Alphabet and is a controlling shareholder.
Brin’s fortune fell by $5.7 billion in August 2024. He moved down one spot in the ranks, to No. 9 from No. 8 last month. Brin came out of semi-retirement to submit changes to Google’s Gemini AI chatbot last year and was listed as a “core contributor” when the model was released in December.
He’s also become the largest individual donor to research on Parkinson’s disease, giving $1.25 bill