Form 4: C3.ai CEO Thomas Siebel Sells Over 600,000 Shares Under Pre-Arranged Trading Plan

C3.ai's Chief Executive Officer and 10% owner, Thomas M. Siebel, sold 601,498 shares of Class A Common Stock on June 11, 2025, through a Rule 10b5-1 trading plan.

Summary

• Thomas M. Siebel, who serves as Chief Executive Officer, Director, and a 10% Owner of C3.ai, Inc. (AI), reported the sale of Class A Common Stock.
• On June 11, 2025, Siebel sold 590,995 shares at a weighted-average price of $25.01 per share, with individual transaction prices ranging from $24.57 to $25.56.
• Additionally, on the same date, he sold 10,503 shares at a weighted-average price of $25.76 per share, with individual transaction prices ranging from $25.57 to $26.00.
• The total number of Class A Common Stock shares sold in these transactions amounted to 601,498.
• These sales were executed pursuant to a Rule 10b5-1 trading plan that was established on September 20, 2024.
• Following these reported transactions, Siebel's indirect beneficial ownership includes 3,816,802 shares held by The Siebel Living Trust, 9,216 shares by First Virtual Holdings, LLC, 170,294 shares by Siebel Asset Management, L.P., 72,695 shares by Siebel Asset Management III, L.P., and 1,237,115 shares by The Siebel 2011 Irrevocable Children's Trust.

Sentiment

Score: 4

Explanation: The sale of a significant number of shares by the CEO and 10% owner, Thomas M. Siebel, could be viewed as a negative signal by the market, despite being executed under a pre-established 10b5-1 trading plan. While 10b5-1 plans indicate the sale was not based on new material non-public information, a large disposition by a key insider can still raise questions about management's long-term confidence or valuation expectations.

Negatives

• A significant sale of 601,498 shares by the Chief Executive Officer and 10% owner, Thomas M. Siebel, could be perceived negatively by investors, potentially signaling a lack of confidence or a belief that the stock is adequately valued, despite being executed under a pre-established plan.

Future Outlook

This SEC Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This Form 4 filing is specific to C3.ai, Inc. and its insider transactions, and does not provide broader industry context or trends.

Related Party Transactions

• Shares are held indirectly by The Siebel Living Trust u/a/d 7/27/93, as amended, of which the Reporting Person is trustee.
• Shares are held indirectly by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.
• Shares are held indirectly by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.
• Shares are held indirectly by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.
• Shares are held indirectly by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.

Stakeholder Impact

• Shareholders: May interpret the large insider sale as a negative signal, potentially impacting stock price sentiment.

Key Dates

Recommendation

Keywords

C3.ai, AI, Thomas Siebel, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, CEO, Director, 10% Owner, Equity Transaction