Semafor names expanded co-chairs for Silicon Valley & The World

Semafor announced expanded co-chairs for Silicon Valley & The World, including OpenAI’s Sam Altman, Nvidia’s Jensen Huang, Microsoft’s Satya Nadella, Alphabet and Google’s Ruth Porat, AMD’s Lisa Su and ICONIQ’s Divesh Makan. Semafor says the expanded board includes more than 50 global figures and plans to convene more than 350 founders, CEOs, investors and policymakers in November 2026.