COX MATTHEW J sold $1.9M of MATX

COX MATTHEW J (Chairman & CEO) sold 10,000 shares of Matson, Inc. (MATX) at an average of $190.08 ($186.13–$191.10, $1.90M total) across 5 trades on 2026-06-08 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · COX MATTHEW J
Published Jun 9, 2026, 9:06 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 9, 2026, 9:12 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.
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

The newest information is the CEO/Chairman’s disclosed sale size, execution window, and confirmation of a pre-arranged 10b5-1 plan, which informs how traders may interpret insider behavior.

02

Market read

Traders may briefly reassess sentiment around MATX due to insider selling, but the 10b5-1 designation typically limits fundamental signal strength.

03

What to watch

The weighted-average sale price range ($186.13–$191.10) and the multi-tranche execution on one day may indicate scheduled diversification rather than a reaction to new information.

Relevance 5/10Novelty 8/10Timing: Filed June 9, 2026 (covering sales on June 8, 2026)

Background

The article is an SEC EDGAR Form 4 insider transaction disclosure for Matson, Inc. (MATX).

Company-level read

Ticker impact

$MATXNeutralMedium confidence
Context

Matson CEO/Chairman sold $1.9M of MATX shares in an open-market transaction disclosed via SEC Form 4 on June 9, 2026.

Expected impact

Likely limited/short-lived impact; any reaction should be muted given the disclosed 10b5-1 plan.

Evidence & confidence

The filing specifies an open-market sale totaling ~$1.9M across multiple trades and confirms a pre-arranged Rule 10b5-1 plan, which typically dampens inference about current fundamentals.

Market effects

No sector-level read-through; this is a single-company insider transaction.

None indicated.

None indicated.

Counterpoint

Because the sale is explicitly under a pre-arranged 10b5-1 plan, it may reflect routine liquidity rather than bearish expectations.

Key entities

  • Matson, Inc.

    Company whose shares were sold by its CEO/Chairman under an SEC Form 4 disclosure.

  • COX MATTHEW J

    Chairman & CEO who executed the open-market sale of MATX shares.

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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