COX MATTHEW J sold $2.3M of MATX

COX MATTHEW J (Chairman & CEO) sold 10,000 shares of Matson, Inc. (MATX) at an average of $228.39 ($226.44–$230.63, $2.28M total) across 5 trades on 2026-10-29 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · COX MATTHEW J
Published Oct 30, 2026, 12:15 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 30, 2026, 12:32 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
$MATX
Neutral
medium confidence
Mentioned
$MATX
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$MATXNeutralLow
01

Why it matters

This provides a fresh datapoint on insider behavior, but it does not introduce new guidance, financial results, contracts, or regulatory actions that would directly reset valuation expectations.

02

Market read

Traders may briefly reassess sentiment around insider confidence, but the 10b5-1 framing usually reduces immediate price impact.

03

What to watch

The article does not state whether additional insider buys occurred, nor does it provide context on total insider ownership changes over time, which can affect how the market reads the sale.

Relevance 5/10Novelty 5/10Timing: filed late Oct 29, after-hours SEC Form 4 disclosure

Background

The article is an SEC Form 4 insider transaction disclosure for Matson, Inc. (MATX), showing an open-market sale by the CEO under a pre-arranged 10b5-1 plan.

Company-level read

Ticker impact

$MATXNeutralMedium confidence
Context

Matson CEO and Chairman Matthew J. Cox sold about $2.28M of MATX shares via an open-market transaction under a pre-arranged 10b5-1 plan.

Expected impact

Likely limited near-term impact, with traders treating it as routine 10b5-1 selling rather than a strong bearish catalyst.

Evidence & confidence

The filing is a primary SEC Form 4 disclosure, but it is explicitly tied to a pre-arranged 10b5-1 plan and does not include new operational or guidance information.

Market effects

Minimal, as this is company-specific insider activity without sector-wide operational signals.

None indicated; no geographic or macro linkage beyond the issuer.

None indicated; no international transaction or policy change described.

Counterpoint

Even with a 10b5-1 plan, unusually large or clustered insider sales can still be interpreted by some traders as confidence erosion, especially if paired with other negative signals not mentioned here.

Key entities

  • Matson, Inc.

    US-listed shipping/logistics company subject of the insider sale disclosure.

  • COX MATTHEW J

    Chairman & CEO who executed the open-market sale 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.

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