C3.ai's fourth quarter revenue meets guidance as founder Thomas Siebel returns as CEO.

C3.ai announced preliminary fourth quarter and full fiscal year 2026 results, highlighted by the return of founder Thomas M. Siebel to the CEO role. The company reported fourth quarter revenue of $51.6 million, which was within its guidance range, and a non-GAAP operating loss that was better than expected.

Key Highlights

• Effective May 8, 2026, founder Thomas M. Siebel has resumed the role of Chief Executive Officer.
• Fourth quarter non-GAAP loss from operations was $(54.4) million, which was better than the company's guidance range of $(56.0) million to $(64.0) million.
• The company noted that bookings were lower than expected during the quarter, despite signing 28 agreements.
• A restructuring plan initiated in the fourth quarter is now substantially complete and is expected to deliver approximately $135 million in annualized non-GAAP cost savings.