C3 AI Stock Is Tumbling Thursday: What's Going On?

C3.Ai Inc (NYSE:AI) shares are falling Thursday after the company announced a planned CEO transition.

What To Know: C3.ai said it initiated a search for a new CEO to replace Thomas Siebel, who is battling health issues. The search will be led by a search firm that will report to a committee of C3.ai management and board members.

“After being diagnosed with an autoimmune disease in early 2025, I have experienced significant visual impairment,” Siebel said.

“For C3 AI to reach its full potential, which I believe is spectacular, the board and I have initiated a search for a new CEO who can take the company to the next level ...