Sergey Brin Backs Startups From Psychedelics to ‘Energy Islands’

Sergey Brin’s climate and health-focused nonprofit bankrolled startups working on everything from psychedelics to an ambitious $155 billion dollar project to build “energy islands” in Copenhagen, a recently released tax filing shows.

The investments, which cover through the end of 2023, reflect the Alphabet Inc. co-founder’s growing appetite to fundresearch into Parkinson’s disease and other central nervous system diseases and disorders. The 51-year-old billionaire has said he has a genetic mutation that’s been associated with higher rates of Parkinson’s.

Sergey Brin

Photographer: Lionel Hahn/Getty Images

His Catalyst4 nonprofit owned a 52.5% controlling stake in MapLight Therapeutics, which it valued at $120 million at ...