$AI

SIEBEL THOMAS M sold $5.5M of AI

SIEBEL THOMAS M (CEO and Chairman of the Board) sold 495,575 shares of C3.ai, Inc. (AI) at an average of $11.10 ($10.92–$11.11, $5.50M total) across 2 trades over 2026-06-12 to 2026-06-15 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · SIEBEL THOMAS M
Published Jun 16, 2026, 12:04 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 16, 2026, 12:34 AM 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.
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

The newest information is the disclosed sale size, execution window, and weighted-average price, plus confirmation it was under a pre-arranged 10b5-1 plan.

02

Market read

Provides a concrete insider-selling datapoint for AI, but the 10b5-1 structure suggests limited fundamental signal.

03

What to watch

Traders may over-weight insider sales; the article lacks any accompanying fundamental update (earnings, guidance, contracts) that would justify repricing.

Relevance 5/10Novelty 5/10Timing: Filed 2026-06-15 after trades dated 2026-06-12 to 2026-06-15

Background

The filing is an SEC Form 4 insider transaction for C3.ai, Inc. (AI) by CEO/Chairman Thomas M. Siebel.

Company-level read

Ticker impact

$AINeutralMedium confidence
Context

C3.ai CEO/Chairman Thomas M. Siebel sold 495,575 shares in open-market trades at ~$10.92–$11.11 under a 10b5-1 plan.

Expected impact

Likely limited near-term impact; any effect is more about sentiment/positioning than fundamentals.

Evidence & confidence

Form 4 provides concrete transaction details, yet the article specifies the sales were executed under a pre-arranged 10b5-1 plan, which typically dampens interpretability versus discretionary selling.

Market effects

Adds incremental sentiment data for AI software/enterprise AI names, but no sector-wide catalyst is introduced.

No clear regional linkage beyond US-listed insider activity.

No direct global linkage; transaction is company-specific and US-listed.

Counterpoint

Because the sales were executed under a pre-arranged 10b5-1 plan, the disclosure may reflect routine liquidity rather than bearish expectations.

Key entities

  • C3.ai, Inc.

    US-listed AI software company; subject of the insider Form 4 disclosure.

  • Thomas M. Siebel

    CEO and Chairman; 10% owner who sold shares in open-market trades under a 10b5-1 plan.

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.

Related articles

$AIHigh

Why is C3.ai stock surging today?

C3.ai stock rose 8.9% after Northland Securities upgraded it to Outperform and raised its price target to $16, citing the C3 Code platform as a growth driver. UBS noted improving fundamentals, including a doubling of federal bookings to $39 million. The move was driven by company-specific news, not broader market trends.

$AIMed

Why C3.ai (AI) Stock Is Up Today

C3.ai (AI) shares rose 4.4% premarket after Northland upgraded it to Outperform with a $16 price target, citing growth potential from its C3 Code platform. The company reported a 25% revenue decline in Q1. Analyst Mike Latimore highlighted customer engagement and operational stabilization under CEO Thomas Siebel. The stock is down 10.7% YTD and 36.6% below its 52-week high.