Summary
Updated Aug 30, 2026
Mark Lawrence Roberts is Director of COMPASS MINERALS INTERNATIONAL INC (CMP). 2 SEC Form 4 filings on record, most recently on 9 March 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Mark Lawrence Roberts has reported, most recent first.
Other Insiders Active in the Same Sector
No other insider has filed at Mark Lawrence Roberts's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Eric S. Musser - $15.13M of GLW open-market activity in the last 12 months
- D. Christian Koch - $14.99M of CSL open-market activity in the last 12 months
- Vincent J. Morales - $14.51M of PPG open-market activity in the last 12 months
- Jeffrey Emery - $13.25M of PRM open-market activity in the last 12 months
- D. Scott Barbour - $11.92M of WMS open-market activity in the last 12 months
- Kyle Sable - $11.72M of PRM 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 Mark Lawrence Roberts?
Mark Lawrence Roberts is a corporate insider, tracked as Director of COMPASS MINERALS INTERNATIONAL INC (CMP). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Mark Lawrence Roberts last file a Form 4?
The most recent primary Form 4 on record is dated 9 March 2026, one of 2 filings going back to 2026.
Where can I see all of Mark Lawrence Roberts'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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