C3.ai CEO Thomas Siebel sells $4.78m in company stock

C3.ai CEO Thomas Siebel recently sold a significant amount of company stock, selling 444,248 shares on September 15 and 16, 2026, for approximately $4.78 million. The stock, currently priced at $10.78, has experienced a 20% decline year-to-date and 40% decrease over the past year. This volatility, with a beta of 2.09, led InvestingPro to consider the stock overvalued at current levels.

Mr. Siebel's transactions, executed under a pre-established Rule 10b5-1 trading plan, involved exercising stock options at $3.90 per share, totaling around $1.73 million. Post-transaction, he holds 722,362 shares directly, alongside significant indirect holdings through various trusts and entities. These actions were part of a broader narrative of mixed analyst opinions on C3.ai's financial outlook, following the company's announcement of first-quarter fiscal 2027 results.

The firm reported $52.4 million in revenue, a 25% year-over-year decline, with a non-GAAP EPS of negative $0.20, outpacing the consensus estimate of negative $0.26. Despite the mixed signals, analysts like JMP Securities and Needham have offered divergent perspectives on the company's future trajectory.