Leadership change and preliminary results set the tone for C3.ai C3.ai (AI) stock is back in focus after founder Thomas M. Siebel returned as CEO, alongside fresh preliminary Q4 and full year numbers and a restructuring plan centered on sizable cost savings. The company estimated Q4 revenue of US$51.6 million, within its US$48.0 million to US$52.0 million guidance range, and reported a GAAP operating loss of US$121.2 million. For fiscal 2026, estimated revenue was US$250.3 million, also...