Sergey Brin

Alphabet co-founder Sergey Brin has a net worth of approximately $140 billion, just behind his co-founder Larry Page. Brin returned to Alphabet headquarters in 2023 to work on AI projects and has been closely involved in Gemini, Google's flagship large language model. He maintains an adventurous lifestyle, having funded personal projects in airship technology and kiteboarding, while his core Alphabet holdings continue to appreciate alongside surging cloud and AI revenues.