Summary
Updated Aug 31, 2026
David Castiel is VP Engineering of SILICOM LTD. (SILC). 3 SEC Form 4 filings on record, most recently on 29 July 2026. Most recent open-market trade: sold $96K of SILC on 18 May 2026. Lifetime open-market sales: $96K.
Recent Transactions
2Every recent SEC Form 4 transaction David Castiel has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David Castiel go back to 2026: 3 primary Form 4 filings, an average of 3.0 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 David Castiel 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.
- Avinoam Eizenman - $1.41M of SILC open-market activity in the last 12 months
- Liron Eizenman - $1.28M of SILC open-market activity in the last 12 months
- Eran Gilad - $576K of SILC open-market activity in the last 12 months
- Yeshayhu Orbach - $134K of SILC open-market activity in the last 12 months
- David Hendel - $116K of SILC open-market activity in the last 12 months
- Yuval Karp - $100K of SILC 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 Castiel?
David Castiel is a corporate insider, tracked as VP Engineering of SILICOM LTD. (SILC). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David Castiel submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has David Castiel been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($96K) across all tracked filings.
Where can I see all of David Castiel'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.
Learn More
Follow David Castiel and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial