Massivemarkets

SEC Form 4

Landstar System Inc (LSTR) insider trading

In the 12 months to Oct 23, 2026, 2 LSTR insiders reported open-market sales of $2.8M across 2 filings; no open-market purchases were filed.

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

Open-market sales
$2.8M
2 filings · 2 insiders
Open-market purchases
$0
0 filings

Who traded LSTR, and when

  • Sale

LSTR daily close from Oct 23, 2025 to Oct 23, 2026, between $121.51 and $225.37, last $164.36. 2 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Diana M. Murphy, Director: sold $2.5M across 1 filing, first filed Jun 8, 2026, last Jun 8, 2026. James P. Todd, VP and CFO: sold $261.8K across 1 filing, first filed Jun 16, 2026, last Jun 16, 2026.

Largest mark · tap a row for others

Diana M. Murphy · Director

Sale $2,488,525

11,246 shares at $221.28 avg

Filed Jun 8, 2026 · traded Jun 5

Close on filing date $225.37

LSTR daily closelast $164.36

Diana M. Murphy · Director

$2.5M sold

James P. Todd · VP and CFO

$261.8K sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Landstar System Inc's CEO sold stock?

No. Frank A. Lonegro (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

2 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Diana M. MurphyDirector$2.5M—1—
James P. ToddVP and CFO$261.8K—1—
Other insider activity (not market trades) · 29 records
  • Tax withholding9 records
  • Grants and awards20 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:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for LSTR 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.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.