Summary
Updated Aug 31, 2026
Gareth T. Joyce is Director of COMPASS MINERALS INTERNATIONAL INC (CMP). 5 SEC Form 4 filings on record going back to 2024, most recently on 9 March 2026.
Recent Transactions
5Every recent SEC Form 4 transaction Gareth T. Joyce has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Gareth T. Joyce go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Sector
No other insider has filed at Gareth T. Joyce's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Jugal K. Vijayvargiya - $9.02M of MTRN open-market activity in the last 12 months
- Hagedorn Partnership, L.P. - $8.91M of SMG open-market activity in the last 12 months
- Keith Harvey - $8.75M of KALU open-market activity in the last 12 months
- Mogens C. Bay - $8.62M of VMI open-market activity in the last 12 months
- Edward A. Schlesinger - $8.31M of GLW open-market activity in the last 12 months
- John P. McConnell - $8.21M of WOR 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 Gareth T. Joyce?
Gareth T. Joyce is a corporate insider, tracked as Director of COMPASS MINERALS INTERNATIONAL INC (CMP). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Gareth T. Joyce last file a Form 4?
The most recent primary Form 4 on record is dated 9 March 2026, one of 5 filings going back to 2024.
Where can I see all of Gareth T. Joyce'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.
Learn More
Follow Gareth T. Joyce and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial