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fool.comSEP 162 min read$AI

C3.ai CEO Thomas Siebel Disposes 66,752 Shares for Tax Withholding

C3.ai CEO Thomas Siebel sold 66,752 shares on Sept. 14, 2026, for tax withholding, according to an SEC filing. The sale was automatic and not discretionary. Siebel still holds 9.3 million shares and derivatives worth ~$104.1 million. C3.ai's stock has fallen 38% over the past year, with Q1 2027 revenue down 26% to $52 million and a net loss of $93 million.

Original reporting
fool.com
Published Sep 16, 2026, 7:45 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 16, 2026, 8:45 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
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C3.ai CEO Thomas Siebel Disposes 66,752 Shares for Tax Withholding — source image
Source · fool.com
Decision brief

The 30-second read

$AINeutralLow
01

Why it matters

The disclosed sale is unlikely to trigger significant price movement given its modest size relative to market cap.

02

Market read

The filing offers a fresh data point for investors tracking insider activity but carries low trading relevance.

03

What to watch

The CEO still holds ~9.3 M shares, indicating continued confidence in the business.

Relevance 4/10Novelty 4/10Timing: Sept. 14 2026 (same‑day filing)

Background

Form 4 filings disclose insider transactions; a CEO sale for tax purposes is routine but provides transparency.

Company-level read

Ticker impact

$AINeutralHigh confidence
Context

CEO Thomas Siebel sold 66,752 shares of C3.ai (AI) on Sept. 14, 2026, disclosed via a Form 4 filing.

Expected impact

Minimal impact; price may stay flat or dip slightly on short‑term selling pressure.

Evidence & confidence

The sale size (~$0.7 M) is modest for a $1.7 B market‑cap and is disclosed as a non‑discretionary tax‑withholding transaction.

Market effects

Sector

Insider sale highlights ongoing tax‑withholding practices but does not affect the broader AI software sector.

Regional

No discernible regional effect; the news is company‑specific.

Global

Limited global relevance; only C3.ai investors may adjust positions.

Counterpoint

What could challenge this read

Some traders may view the sale as a signal of insider concern despite the tax‑withholding explanation.

Key entities

  • person
    Thomas M. Siebel

    CEO and Chairman of C3.ai

  • company
    C3.ai, Inc.

    Enterprise AI software provider

Read at source← All news

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