Summary
Updated Aug 30, 2026
Jack A. Bradley is Director of GSI TECHNOLOGY INC (GSIT). 3 SEC Form 4 filings on record going back to 2024, most recently on 8 August 2025. Most recent open-market trade: bought $11K of GSIT on 8 August 2025. Lifetime open-market purchases: $11K. Lifetime open-market sales: $27K.
Recent Transactions
4Every recent SEC Form 4 transaction Jack A. Bradley has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Jack A. Bradley 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.
- Patrick T. Chuang - $2.54M of GSIT open-market activity in the last 12 months
- Lee-Lean Shu - $2.44M of GSIT open-market activity in the last 12 months
- Avidan Akerib - $1.92M of GSIT open-market activity in the last 12 months
- Bor-Tay Wu - $1.00M of GSIT open-market activity in the last 12 months
- Ping Tak Wu - $457K of GSIT open-market activity in the last 12 months
- Douglas Schirle - $453K of GSIT 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 Jack A. Bradley?
Jack A. Bradley is a corporate insider, tracked as Director of GSI TECHNOLOGY INC (GSIT). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jack A. Bradley last file a Form 4?
The most recent primary Form 4 on record is dated 8 August 2025, one of 3 filings going back to 2024.
Has Jack A. Bradley been buying or selling stock?
Recorded transactions: 1 open-market purchase ($11K) and 2 open-market sales ($27K) across all tracked filings.
Where can I see all of Jack A. Bradley'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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