Summary
Updated Aug 30, 2026
James T. Prokopanko files SEC Form 4 reports at Vulcan Materials CO (VMC). 5 SEC Form 4 filings on record going back to 2025, most recently on 12 May 2026.
Recent Transactions
2Every recent SEC Form 4 transaction James T. Prokopanko 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 James T. Prokopanko 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.
- Thompson S. Baker II - $4.36M of VMC open-market activity in the last 12 months
- J. Thomas Hill - $3.87M of VMC open-market activity in the last 12 months
- David P. Clement - $2.00M of VMC open-market activity in the last 12 months
- Grayson Hall - $1.35M of VMC open-market activity in the last 12 months
- Amanda J. Rome - $1.34M of XEL open-market activity in the last 12 months
- William D. Ritter - $1.04M of RF 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 James T. Prokopanko?
James T. Prokopanko is a corporate insider of Vulcan Materials CO (VMC). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did James T. Prokopanko last file a Form 4?
The most recent primary Form 4 on record is dated 12 May 2026, one of 5 filings going back to 2025.
Where can I see all of James T. Prokopanko'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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