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Summary Companies Leadership change follows Siebel stepping down due to health concerns C3 AI's stock down over 54% in 2025 amid financial struggles Ehikian's CEO appointment led to withdrawal of full-year financial outlook Nov 10 (Reuters) - Enterprise artificial intelligence software provider C3 AI(AI.N), opens new tab is exploring a potential sale, among other options, after founder Thomas Siebel recently stepped down as CEO over health concerns, according to three people familiar with the matter. THE DETAILS Sign up here. THE NUMBERS THE PEOPLE Reporting by Milana Vinn in New York, additional reporting by Stephen Nellis in San Francisco; Editing by Dawn Kopecki and Richard Chang Our Standards: The Thomson Reuters Trust Principles., opens new tab Milana Vinn reports on technology, media, and telecom (TMT) mergers and acquisitions. Her content usually appears in the markets and deals sections of the website. Milana previously worked at GLG and PE Hub, where she spent several years covering TMT deals in private equity. She graduated from CUNY Graduate School of Journalism with Masters in Business Journalism.