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C3.ai, Inc.·4

Mar 19, 4:05 PM ET

SIEBEL THOMAS M 4

Research Summary

AI-generated summary

Updated

C3.ai (AI) 10% Owner Thomas Siebel Sells Shares After Exercising Options

What Happened
Thomas M. Siebel, a 10% owner of C3.ai (AI), exercised options to acquire a total of 501,497 shares (282,203 on 2026-03-17 and 219,294 on 2026-03-18) at $2.04 per share (total exercise cost $1,023,054) and then sold those same shares in open-market transactions for a combined ~$4,401,598 (weighted-average sale prices: $8.86 on 3/17 and $8.67 on 3/18). The transactions were effected under a previously established Rule 10b5-1 trading plan. Net proceeds before fees/taxes were about $3,378,544.

Key Details

  • Filing date: 2026-03-19; Reported period: 2026-03-17 (transactions occurred 2026-03-17 and 2026-03-18).
  • Exercises (M):
    • 3/17/2026: 282,203 shares exercised at $2.04 — $575,694 (then converted to common shares).
    • 3/18/2026: 219,294 shares exercised at $2.04 — $447,360 (then converted to common shares).
  • Sales (S):
    • 3/17/2026: 282,203 shares sold — weighted-average $8.86; total $2,500,319 (sales ranged $8.66–$8.975) [F2].
    • 3/18/2026: 219,294 shares sold — weighted-average $8.67; total $1,901,279 (sales ranged $8.56–$8.83) [F3].
  • Derivative conversion entries show the exercised options converted to common shares (reported as $0 disposed for the derivative instrument).
  • Shares held by related entities/trusts: The Siebel Living Trust, First Virtual Holdings, LLC, Siebel Asset Management, L.P., Siebel Asset Management III, L.P., and The Siebel 2011 Irrevocable Children's Trust [F4–F8]. Options were fully vested [F9].
  • Transactions were pursuant to a 10b5-1 trading plan dated Sept 20, 2024 [F1].
  • Shares owned after the transactions are not specified in the provided filing excerpt.
  • Filing timeliness: filed on 3/19 for trades on 3/17–3/18; no late-filing flag indicated in the provided data.

Context
This was an exercise-and-sell sequence (options exercised and resulting shares sold in the market), a common way for insiders to monetize vested options. The 10b5-1 plan indicates sales were pre-arranged, which can reduce the implication that the sales were based on nonpublic company information. As a 10% owner (and trustee/chairman/general partner of entities holding shares), Siebel's transactions reflect holdings across affiliated trusts and entities rather than a simple individual open-market trade.