Summary
Updated Aug 31, 2026
Robert C. Ducommun files SEC Form 4 reports at DUCOMMUN INC /DE/ (DCO). 1 SEC Form 4 filing on record, dated 6 December 2024. Most recent open-market trade: sold $70K of DCO on 6 December 2024. Lifetime open-market sales: $70K.
Recent Transactions
1Every recent SEC Form 4 transaction Robert C. Ducommun has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Robert C. Ducommun go back to 2024: 1 primary Form 4 filing, an average of 0.3 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 Stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert C. Ducommun 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.
- 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
- Laureen S. Gonzalez - $90K 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 Robert C. Ducommun?
Robert C. Ducommun is a corporate insider of DUCOMMUN INC /DE/ (DCO). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Robert C. Ducommun last file a Form 4?
The only primary Form 4 on record is dated 6 December 2024.
Has Robert C. Ducommun been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($70K) across all tracked filings.
Where can I see all of Robert C. Ducommun'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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