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AI - C3.Ai, Inc.

Insider Sale by Siebel Thomas M (Exec COB, 10%)

1 Month
After Trade
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Trade Summary

3 days ago, Siebel Thomas M, serving as Exec COB, 10% owner at C3.Ai, Inc. (AI), sold 491,467 shares at $8.37 per share, for a total transaction value of $4,113,841.00. Following this transaction, Siebel Thomas M now holds 2,905,870 shares of AI.

This sale represents a 14.00% decrease in Siebel Thomas M's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, April 13, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, April 15, 2026, 2 days after the trade was made.

C3.Ai, Inc. operates in the TECHNOLOGY sector, specifically within the SOFTWARE - INFRASTRUCTURE industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Siebel Thomas M

Exec COB, 10%

Thomas M. Siebel is the founder, Chairman, and Chief Executive Officer (CEO) of C3.ai, Inc. (NYSE: AI), a leading provider of enterprise AI software, where he has served as Chairman since 2009 and CEO since 2011.[[1]](https://www.clay.com/dossier/c3-ai-ceo)[[2]](https://event.technologyreview.com/emtech-digital-2023/speaker/659141/tom-siebel)[[3]](https://www.bakerhughes.com/annual-meeting-2021/annual-meeting-2021-speakers/tom-siebel) As an Exec COB (Executive Chairman and CEO), he recently engaged in insider trading activity representing 10% of transactions, reflecting his significant ownership and involvement in the company.[user query context] Prior to C3.ai, Siebel founded Siebel Systems in 1993, a pioneering CRM software company that grew to over $2 billion in revenue and merged with Oracle in 2006; he previously held senior roles at Oracle from 1984 to 1990.[[1]](https://www.clay.com/dossier/c3-ai-ceo)[[2]](https://event.technologyreview.com/emtech-digital-2023/speaker/659141/tom-siebel)[[3]](https://www.bakerhughes.com/annual-meeting-2021/annual-meeting-2021-speakers/tom-siebel)[[4]](https://grainger.illinois.edu/alumni/hall-of-fame/thomas-siebel) Siebel holds a B.A. in History (1973 or 1975), M.B.A. (1983), and M.S. in Computer Science (1983 or 1985) from the University of Illinois at Urbana-Champaign, along with an honorary Ph.D. in Engineering.[[1]](https://www.clay.com/dossier/c3-ai-ceo)[[3]](https://www.bakerhughes.com/annual-meeting-2021/annual-meeting-2021-speakers/tom-siebel)[[4]](https://grainger.illinois.edu/alumni/hall-of-fame/thomas-siebel) A prolific author of four books, including *Digital Transformation* (2019), he has received accolades such as election to the American Academy of Arts and Sciences and serves on engineering boards at UIUC and UC Berkeley; he also chairs the Thomas and Stacey Siebel Foundation, supporting education, health, and energy research.[[2]](https://event.technologyreview.com/emtech-digital-2023/speaker/659141/tom-siebel)[[3]](https://www.bakerhughes.com/annual-meeting-2021/annual-meeting-2021-speakers/tom-siebel)[[4]](https://grainger.illinois.edu/alumni/hall-of-fame/thomas-siebel)[[5]](https://betterworld.mit.edu/spectrum/issues/fall-2021/an-investment-in-future-generations/)

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Trade Price

$8.37

Quantity

491,467

Total Value

$4,113,841.00

Shares Owned

2,905,870

Trade Date

Monday, April 13, 2026

3 days ago

SEC Filing Date

Wednesday, April 15, 2026

Filed 2 days after trade

TECHNOLOGYSOFTWARE - INFRASTRUCTURE

About C3.Ai, Inc.

Company Overview

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