C3 AI CEO, Tom Siebel, Resigns for Health Reasons

Posted Thu, Aug 21st, 2025

Exceptional Risk Advisors Lloyds of London Coverholder

C3 AI CEO, Tom Siebel, Resigns for Health Reasons

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C3 AI announced that founder and CEO Tom Siebel will step down due to health reasons after being diagnosed with an autoimmune disease that has caused significant vision loss. Based in Redwood City, CA, the company employs more than 700 people and recently reported quarterly revenue of $108.7 million, a 26% increase year-over-year. Shares fell 11% on the news, with analysts noting the leadership transition could raise the likelihood of an acquisition within the next 12 months. Siebel will remain CEO until a successor is named, then continue as Executive Chairman focusing on strategy, innovation, and partnerships.

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