Summary
Updated Aug 31, 2026
David M. Rothenstein is SVP and Chief Strategy Officer of CIENA CORP (CIEN). 21 SEC Form 4 filings on record going back to 2024, most recently on 18 August 2026. Most recent open-market trade: sold $1.10M of CIEN on 18 August 2026. Lifetime open-market sales: $10.49M.
Recent Transactions
20Every recent SEC Form 4 transaction David M. Rothenstein has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David M. Rothenstein go back to 2024: 21 primary Form 4 filings, an average of 7.0 per year. 13 recorded transactions carry a Rule 10b5-1 flag, meaning they were 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 David M. Rothenstein 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.
- Gary B. Smith - $26.22M of CIEN open-market activity in the last 12 months
- Jason Phipps - $15.55M of CIEN open-market activity in the last 12 months
- Brodie Gage - $5.15M of CIEN open-market activity in the last 12 months
- Dino Diperna - $3.53M of CIEN open-market activity in the last 12 months
- Marc D. Graff - $2.27M of CIEN open-market activity in the last 12 months
- Sheela Kosaraju - $2.09M of CIEN 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 David M. Rothenstein?
David M. Rothenstein is a corporate insider, tracked as SVP and Chief Strategy Officer of CIENA CORP (CIEN). InsiderAlpha holds 21 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David M. Rothenstein submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has David M. Rothenstein been buying or selling stock?
Recorded transactions: 0 open-market purchases and 16 open-market sales ($10.49M) across all tracked filings.
Where can I see all of David M. Rothenstein'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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