Thomas Siebel, founder and CEO of C3.ai, sold 444,248 shares of the company in mid-September 2026. The transactions generated approximately $4.78 million in gross proceeds. The sales occurred at an average price of around $10.65 per share, significantly lower than the 52-week high of $20.22.
The shares were acquired through the exercise of vested stock options with a strike price of $3.90. This resulted in an estimated profit of $3.05 million before taxes and fees. On September 15, Siebel sold 282,001 shares at an average of $10.90, followed by 162,247 shares at $10.54 on the next day.
The trades were executed under a Rule 10b5-1 plan established in September 2024. Following these transactions, Siebel maintains a direct holding of 722,362 shares. The company, which provides enterprise AI software, currently holds a market capitalization of $1.7 billion, with its stock price fluctuating between $7.68 and $20.22 over the past year.
