Summary
Updated Aug 31, 2026
James D. Plummer is Director of CADENCE DESIGN SYSTEMS INC (CDNS). 5 SEC Form 4 filings on record going back to 2025, most recently on 15 June 2026. Most recent open-market trade: sold $576K of CDNS on 15 June 2026. Lifetime open-market sales: $854K.
Recent Transactions
8Every recent SEC Form 4 transaction James D. Plummer has reported, most recent first.
Trading Pattern
InsiderAlpha's records for James D. Plummer go back to 2025: 5 primary Form 4 filings, an average of 2.5 per year. 1 recorded transaction carries a Rule 10b5-1 flag, meaning it was pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies James D. Plummer 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.
- Anirudh Devgan - $51.86M of CDNS open-market activity in the last 12 months
- John M. Wall - $11.02M of CDNS open-market activity in the last 12 months
- Chin-Chi Teng - $8.29M of CDNS open-market activity in the last 12 months
- Paul Scannell - $6.81M of CDNS open-market activity in the last 12 months
- Paul Cunningham - $4.75M of CDNS open-market activity in the last 12 months
- Vincentelli Alberto Sangiovanni - $401K of CDNS 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 D. Plummer?
James D. Plummer is a corporate insider, tracked as Director of CADENCE DESIGN SYSTEMS INC (CDNS). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has James D. Plummer submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has James D. Plummer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($854K) across all tracked filings.
Where can I see all of James D. Plummer'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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