Summary
Updated Aug 31, 2026
Mark A. Caylor files SEC Form 4 reports at DUCOMMUN INC /DE/ (DCO). 2 SEC Form 4 filings on record going back to 2025, most recently on 29 May 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Mark A. Caylor 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 Mark A. Caylor 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.
- North Run Strategic Opportunities Fund I, LP - $81.04M of LPTH open-market activity in the last 12 months
- Suman B. Mookerji - $3.22M of DCO open-market activity in the last 12 months
- Stephen G. Oswald - $1.67M of DCO open-market activity in the last 12 months
- Richard A. Baldridge - $1.37M of DCO open-market activity in the last 12 months
- Jerry L. Redondo - $1.21M of DCO open-market activity in the last 12 months
- Rajiv A. Tata - $234K of DCO 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 A. Caylor?
Mark A. Caylor is a corporate insider of DUCOMMUN INC /DE/ (DCO). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Mark A. Caylor last file a Form 4?
The most recent primary Form 4 on record is dated 29 May 2026, one of 2 filings going back to 2025.
Where can I see all of Mark A. Caylor'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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