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Sergey Brin Donates $102 Million to Fight Prop 40

By Drooid · Oct 4, 2026, 3:18 AM UTC · How we work

Summary

Story summary

Sergey Brin donated $102 million to the Building a Better California PAC to oppose Proposition 40.
His contribution made him the largest single donor, with opposition spending exceeding $187 million.
Proposition 40 would impose a one-time 5% tax on California’s 200 billionaires, raising $100 billion.
The tax could cost Brin about $13 billion, given his nearly $260 billion net worth.

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Story summary

Sergey Brin donated $102 million to the Building a Better California PAC to oppose Proposition 40.
His contribution made him the largest single donor, with opposition spending exceeding $187 million.
Proposition 40 would impose a one-time 5% tax on California’s 200 billionaires, raising $100 billion.
The tax could cost Brin about $13 billion, given his nearly $260 billion net worth.