Summary
Updated Aug 31, 2026
Nancy Erba is Director of PDF SOLUTIONS INC (PDFS). 6 SEC Form 4 filings on record going back to 2024, most recently on 2 July 2026. Most recent open-market trade: sold $62K of PDFS on 12 December 2024. Lifetime open-market sales: $62K.
Recent Transactions
8Every recent SEC Form 4 transaction Nancy Erba has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Nancy Erba go back to 2024: 6 primary Form 4 filings, an average of 2.0 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 Nancy Erba 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.
- Shuo Zhang - $77K of PDFS 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 Nancy Erba?
Nancy Erba is a corporate insider, tracked as Director of PDF SOLUTIONS INC (PDFS). InsiderAlpha holds 6 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 Nancy Erba submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Nancy Erba been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($62K) across all tracked filings.
Where can I see all of Nancy Erba'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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