A logo of C3.ai sits outside the Meta House on the opening day of the 55th annual meeting of the World Economic Forum (WEF) in Davos, Switzerland, January 20, 2025. REUTERS/Yves Herman Purchase Licensing Rights, opens new tabSummaryCompaniesLeadership change follows Siebel stepping down due to health concernsC3 AI's stock down over 54% in 2025 amid financial strugglesEhikian's CEO appointment led to withdrawal of full-year financial outlookNov 10 (Reuters) - Enterprise artificial intelligence so...