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NYSE Technology

C3.ai Founder and CEO Thomas Siebel Files to Sell $16.1M in Stock, Adding to Recent $10.1M in Sales

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Software Stocks · Technology
Sentiment info
Negative
Importance info
8
Price
$9.121
Mkt Cap
$1.39B
52W Low
$7.675
52W High
$30.11
52W Position info
19% above low
Off High info
70% below high
Rel. Volume info
0.8× avg
Market data snapshot near publication time

AI sits 19% above its 52-week low of $7.675.

Summary

C3.ai CEO Thomas Siebel filed to sell $16.1 million in stock, adding to $10.1 million in recent sales, despite his recent return as CEO and a $69 million personal investment in the company.


Key Events · Ownership and Investor Activity · AI

  • CEO Files to Sell $16.1M in Stock

    Thomas Siebel, founder and CEO, filed a Form 144 to sell 1,795,490 shares worth approximately $16.1 million, acquired via cashless option exercise.

  • Follows $10.1M in Recent Sales

    Over the past three months, Siebel has already sold 1,021,773 shares for gross proceeds of $10.1 million, indicating an acceleration in selling activity.

  • 10b5-1 Plan Adopted in 2024

    The sales are executed under a pre-existing 10b5-1 trading plan adopted on September 20, 2024, which provides some defense against accusations of opportunistic timing.

  • Contrasts with Recent $69M Personal Investment

    Siebel's selling comes just weeks after he personally infused $69 million into the company and purchased 6.17 million shares, creating a mixed signal for investors.


Analysis · AI · Technology

Founder and CEO Thomas Siebel, who recently returned to the CEO role and personally infused $69 million into the company, now intends to sell an additional $16.1 million worth of shares. This follows $10.1 million in sales over the past three months, bringing total recent selling to over $26 million. While the sales are executed under a pre-existing 10b5-1 plan, the magnitude and timing—amid a 35.7% revenue decline, widening losses, and surging cash burn—raise questions about insider conviction. The proposed sale represents approximately 1.2% of outstanding shares, a significant overhang that could pressure the stock.

At the time of this filing, AI was trading at $9.12 on NYSE in the Technology sector, with a market capitalization of approximately $1.4B. The 52-week trading range was $7.68 to $30.11. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.

View Main SEC Filing

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Jul 14, 2026, 4:11 PM EDT
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