Founders Backed by Jean George Angel (2026)

Jean George (Angel) founders (4)

Jean George (Angel) founders covers 4 founders on Astria Therapeutics, Calithera Biosciences and Gemini Therapeutics and 1 other companies. The most common sector is Biotech (4). Members are based in 4 cities, led by Boston, MA (1), Cambridge, MA (1) and South San Francisco, CA (1). Companies represented include Regeneron Pharmaceuticals. Every founder below links to a profile with their company, backers, and the filings behind each round.

• Founders listed: 4
• Companies represented: 4
• Top sector: Biotech (4 founders)
• Top location: Boston, MA (1 founders)
• Locations represented: 4

• George D. Yancopoulos — Regeneron Pharmaceuticals
• Marc de Garidel — Gemini Therapeutics
• Martin B. Gerstel — Calithera Biosciences
• Nathaniel T. Calhoun — Astria Therapeutics

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