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Sergey Brin Donates $1.1 Billion to Health and Climate Solutions

11/29/2025

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Summary

Story summary

Sergey Brin, co-founder of Alphabet Inc., donated over $1.1 billion in Alphabet Inc. stock this week to Catalyst4, a nonprofit, involving more than 3.5 million shares.
The donation was disclosed in a regulatory filing.
A spokesperson for Brin's family office stated that approximately $1 billion will support research on central nervous system diseases and climate-change solutions.
The contribution underscores Brin's commitment to addressing critical health and environmental issues.

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Story summary

Sergey Brin, co-founder of Alphabet Inc., donated over $1.1 billion in Alphabet Inc. stock this week to Catalyst4, a nonprofit, involving more than 3.5 million shares.
The donation was disclosed in a regulatory filing.
A spokesperson for Brin's family office stated that approximately $1 billion will support research on central nervous system diseases and climate-change solutions.
The contribution underscores Brin's commitment to addressing critical health and environmental issues.