Overview

• Sergey Brin transferred 4.1 million Alphabet shares worth nearly $700 million, as disclosed in an SEC filing on May 22, 2025.
• The donation included a mix of Class A and Class C shares, which differ in voting rights, but the recipients remain unidentified.
• The timing of the donation aligns with Alphabet’s stock jump following Google’s I/O conference, where new AI-powered features were unveiled.
• Brin has a history of strategic philanthropic stock donations, including $600 million in 2023 and over $100 million in 2024.
• The billionaire, with a net worth of $144 billion, has focused past donations on Parkinson’s research and climate initiatives through his foundations.