Massivemarkets

SEC Form 4

Matsons, Inc. (MATX) insider trading

In the 12 months to Oct 23, 2026, 15 MATX insiders reported open-market sales of $26.2M across 35 filings; no open-market purchases were filed.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$26.2M
35 filings · 15 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
5 of 35
$10.3M of $26.2M sold (39%)

Who traded MATX, and when

  • Sale
  • Sale, pre-arranged (10b5-1)

MATX daily close from Oct 23, 2025 to Oct 23, 2026, between $93.22 and $238.60, last $228.64. 35 sale and 0 purchase filings by 15 insiders, marked at their filing dates. Matthew J. Cox, Chairman & CEO: sold $10.3M across 5 filings, first filed Jun 9, 2026, last Oct 1, 2026. Peter T. Heilmann, EVP, Chief Admin. Officer & GC: sold $4.5M across 3 filings, first filed Mar 4, 2026, last Aug 20, 2026. Vic S. Angoco Jr., Executive Vice President: sold $1.5M across 2 filings, first filed Mar 4, 2026, last Aug 24, 2026. John Warren Sullivan, Senior Vice President: sold $1.5M across 3 filings, first filed Mar 10, 2026, last Aug 12, 2026. John P. Lauer, EVP & Chief Commercial Officer: sold $1.4M across 1 filing, first filed Mar 6, 2026, last Mar 6, 2026. Christopher A. Scott, Senior Vice President → EVP & Chief Commercial Officer: sold $1.4M across 4 filings, first filed Mar 12, 2026, last Aug 20, 2026. 9 others: sold $5.5M across 17 filings, first filed Mar 4, 2026, last Aug 14, 2026.

Largest mark · tap a row for others

Kevin L. Stuck · VP and Controller

Filing 1 of 7 within a week · $2,643,877 total

Sale $421,710

2,524 shares at $167.08 avg

Filed Mar 4, 2026 · traded Mar 3

Close on filing date $167.38

MATX daily closelast $228.64

Matthew J. Cox · Chairman & CEO

$10.3M sold

Peter T. Heilmann · EVP, Chief Admin. Officer & GC

$4.5M sold

Vic S. Angoco Jr. · Executive Vice President

$1.5M sold

John Warren Sullivan · Senior Vice President

$1.5M sold

John P. Lauer · EVP & Chief Commercial Officer

$1.4M sold

Christopher A. Scott · Senior Vice President → EVP & Chief Commercial Officer

$1.4M sold

9 others

$5.5M sold
One row per insider, smaller filers combined; marks sit at the SEC filing date, sized by dollar value.

Has Matsons, Inc.'s CEO sold stock?

Yes. Matthew J. Cox (CEO) sold 50,000 shares ($10.3M) between Jun 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

35 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Matthew J. CoxChairman & CEO$10.3M—5100% of sales
Peter T. HeilmannEVP, Chief Admin. Officer & GC$4.5M—3—
Vic S. Angoco Jr.Executive Vice President$1.5M—2—
John Warren SullivanSenior Vice President$1.5M—3—
John P. LauerEVP & Chief Commercial Officer$1.4M—1—
Christopher A. ScottSenior Vice President → EVP & Chief Commercial Officer$1.4M—4—
Jason Lee TaylorSenior Vice President$1.2M—3—
Kuuhaku T. ParkSenior Vice President$998.6K—3—
Richard S. KinneySenior Vice President$863.8K—1—
Laura L. RasconSenior Vice President$794.9K—3—
Leonard P. IsotoffSenior Vice President$508.3K—2—
Kevin L. StuckVP and Controller$421.7K—1—
Bradley D. TildenDirector$289.9K—1—
Grace M. CerockeSenior Vice President$220.3K—1—
Jennifer C. TungulSenior Vice President$183.9K—2—
Other insider activity (not market trades) · 114 records
  • Tax withholding71 records
  • Grants and awards41 records
  • Gifts2 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

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Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MATX every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Role
The title on each filing. Someone whose title changed shows more than one.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.