Summary
Updated Aug 30, 2026
William C. Clement is VP, Chief Commercial Officer of LANDSTAR SYSTEM INC (LSTR). 1 SEC Form 4 filing on record, dated 4 August 2026.
Recent Transactions
1Every recent SEC Form 4 transaction William C. Clement has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William C. Clement files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Diana M. Murphy - $2.49M of LSTR open-market activity in the last 12 months
- James P. Todd - $262K of LSTR open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William C. Clement?
William C. Clement is a corporate insider, tracked as VP, Chief Commercial Officer of LANDSTAR SYSTEM INC (LSTR). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William C. Clement submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of William C. Clement's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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