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SEC EDGARAUG 132 min read$AI

SIEBEL THOMAS M sold $4.8M of AI

SIEBEL THOMAS M (CEO and Chairman of the Board) sold 453,314 shares of C3.ai, Inc. (AI) at $10.51 ($4.76M total) on 2026-08-11 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · SIEBEL THOMAS M
Published Aug 13, 2026, 9:27 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 13, 2026, 9:45 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.
About AlphAI AI DeskScoring methodologyReport an issue
AlphAI market briefInsider activity
Primary signal
$AI
Neutral
medium confidence
Mentioned
$AI
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$AINeutralLow
01

Why it matters

Traders may use the sale as a sentiment input, but the 10b5-1 pre-arranged plan reduces the likelihood of a strong directional fundamental signal.

02

Market read

Fresh insider-sale disclosure for AI, but with 10b5-1 framing, so expected impact is modest.

03

What to watch

The article provides no context on total insider holdings beyond post-transaction shares, no sale schedule details, and no concurrent company news, limiting inference.

Relevance 5/10Novelty 5/10Timing: today’s SEC Form 4 filing (filed 2026-08-13)

Background

The article is an SEC Form 4 insider transaction disclosure for C3.ai, Inc. (AI) by its CEO and Chairman, filed on 2026-08-13.

Company-level read

Ticker impact

$AINeutralMedium confidence
Context

C3.ai CEO and Chairman sold 453,314 shares in an open-market transaction totaling about $4.76M, per a new SEC Form 4 filed today.

Expected impact

Likely limited, short-lived sentiment impact; watch for follow-through only if additional filings or company-specific news accompany it.

Evidence & confidence

This is a Form 4 insider sale with a stated 10b5-1 pre-arranged plan, which typically reduces the signal strength versus discretionary selling.

Market effects

Sector

Minimal sector read-through; insider-sale filings rarely reset sector expectations without accompanying operational or guidance changes.

Regional

None indicated.

Global

None indicated.

Counterpoint

What could challenge this read

A 10b5-1 plan can reflect routine liquidity needs rather than bearish expectations, so the market may overreact if it treats it as a discretionary sell.

Key entities

  • issuer
    C3.ai, Inc.

    Subject of the Form 4 insider transaction disclosure.

  • insider
    SIEBEL THOMAS M

    CEO and Chairman of the Board, reported an open-market sale under a 10b5-1 plan.

Read at source← All news

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

AI insider trading history →

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