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 Desk Scoring methodology Report 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

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.

Market read

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

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

AI estimates · verify against primary disclosures

$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.

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