Summary
Updated Aug 31, 2026
Gary Yu is President and CEO of DIODES INC /DEL/ (DIOD). 5 SEC Form 4 filings on record, most recently on 27 May 2026. Most recent open-market trade: sold $400K of DIOD on 27 May 2026. Lifetime open-market sales: $716K.
Recent Transactions
9Every recent SEC Form 4 transaction Gary Yu has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Gary Yu go back to 2026: 5 primary Form 4 filings, an average of 5.0 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 Gary Yu 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.
- Keh Shew Lu - $7.81M of DIOD open-market activity in the last 12 months
- Francis Tang - $3.11M of DIOD open-market activity in the last 12 months
- Brett R. Whitmire - $2.19M of DIOD open-market activity in the last 12 months
- Emily Yang - $1.22M of DIOD open-market activity in the last 12 months
- Jin Zhao - $708K of DIOD open-market activity in the last 12 months
- Andy Tsong - $692K of DIOD 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 Gary Yu?
Gary Yu is a corporate insider, tracked as President and CEO of DIODES INC /DEL/ (DIOD). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Gary Yu last file a Form 4?
The most recent primary Form 4 on record is dated 27 May 2026, one of 5 filings going back to 2026.
Has Gary Yu been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($716K) across all tracked filings.
Where can I see all of Gary Yu'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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