DIODES INC /DEL/ Insider Trading Activity
Every SEC Form 4 insider transaction reported for DIODES INC /DEL/ (DIOD), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are DIOD insiders buying or selling?
In the last 12 months, DIODES INC /DEL/ insiders reported 0 open-market purchases ($0) and 24 sales ($16.8M) — net selling of $16.8M. Since February 2018, Trabud has recorded 278 Form 4 filings for DIOD: 0 buys ($0) and 278 sells ($226.9M).
Source: SEC EDGAR Form 4
What stands out
- No DIODES INC /DEL/ insider made an open-market purchase in the last 12 months; the 24 reported open-market sales totaled $16.8M.
Key Statistics (February 2018 – Jun 1, 2026)
Total Form 4 filings
278
SEC EDGAR
Insider filers
16
Insider buys (0)
$0
Insider sells (278)
$226.9M
Insider sentiment
Net sellingNet insider flow of $226.9M in net selling since February 2018, and $16.8M in net selling over the last 12 months.
Recent DIOD insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | Francis Tang | Chief Technology Officer | Sale | 15.3K | $112.04 | $1.7M | SEC ↗ |
| Jun 1, 2026 | Richard Dallas White | Corporate Secretary | Sale | 3.0K | $106.17 | $318.5K | SEC ↗ |
| May 27, 2026 | Jin Zhao | President, Diodes Asia | Sale | 3.7K | $106.86 | $394.2K | SEC ↗ |
| May 27, 2026 | Andy Tsong | SVP Worldwide Products Group | Sale | 1.6K | $106.96 | $169.2K | SEC ↗ |
| May 27, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 5.0K | $109.06 | $545.3K | SEC ↗ |
| May 27, 2026 | Francis Tang | Chief Technology Officer | Sale | 9.1K | $109.14 | $997.2K | SEC ↗ |
| May 27, 2026 | Gary Yu | President and CEO | Sale | 3.6K | $110.08 | $399.8K | SEC ↗ |
| May 21, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 2.0K | $96.81 | $193.6K | SEC ↗ |
| May 19, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 2.0K | $101.47 | $202.9K | SEC ↗ |
| May 13, 2026 | Jin Zhao | President, Diodes Asia | Sale | 2.8K | $102.36 | $282.5K | SEC ↗ |
| May 13, 2026 | Andy Tsong | SVP Worldwide Products Group | Sale | 2.7K | $110.00 | $291.7K | SEC ↗ |
| May 13, 2026 | Francis Tang | Chief Technology Officer | Sale | 3.6K | $108.00 | $393.4K | SEC ↗ |
| May 13, 2026 | Brett R Whitmire | CFO | Sale | 16.6K | $103.34 | $1.7M | SEC ↗ |
| Feb 26, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 2.2K | $69.89 | $150.6K | SEC ↗ |
| Feb 26, 2026 | Gary Yu | President and CEO | Sale | 2.0K | $70.00 | $140.0K | SEC ↗ |
| Feb 24, 2026 | Keh Shew LU | Director | Sale | 111.0K | $67.76 | $7.5M | SEC ↗ |
| Feb 17, 2026 | Brett R Whitmire | CFO | Sale | 6.0K | $71.22 | $424.0K | SEC ↗ |
| Feb 17, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 1.0K | $71.89 | $71.9K | SEC ↗ |
| Feb 17, 2026 | Andy Tsong | SVP Worldwide Products Group | Sale | 3.3K | $70.46 | $230.9K | SEC ↗ |
| Feb 4, 2026 | Jin Zhao | President, Diodes Asia | Sale | 525 | $59.19 | $31.1K | SEC ↗ |
| Feb 4, 2026 | Gary Yu | President and CEO | Sale | 2.9K | $60.85 | $176.5K | SEC ↗ |
| Feb 4, 2026 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 950 | $60.85 | $57.8K | SEC ↗ |
| Feb 4, 2026 | Brett R Whitmire | CFO | Sale | 830 | $60.85 | $50.5K | SEC ↗ |
| Nov 13, 2025 | Keh Shew LU | Director | Sale | 6.0K | $47.42 | $284.5K | SEC ↗ |
| Aug 28, 2025 | Emily Yang | SVP Worldwide Sales/Marketing | Sale | 1.0K | $56.36 | $56.4K | SEC ↗ |
Showing the 25 most recent of 278 Form 4 filings for DIODES INC /DEL/.
Most active DIOD insiders
- Keh Shew LU85 filings
- Emily Yang34 filings
- Francis Tang31 filings
- Julie Holland24 filings
- Richard Dallas White24 filings
Ask anything about DIOD insider activity
Use Trabud's AI agent to query DIODES INC /DEL/'s Form 4 history in plain English — "Show me DIOD CEO purchases this year" or compare it against any other ticker.
Open the AI agentDIOD insider trading FAQ
Are DIODES INC /DEL/ insiders buying or selling?
In the last 12 months, DIODES INC /DEL/ insiders reported 0 open-market purchases ($0) and 24 sales ($16.8M) — net selling of $16.8M. Since February 2018, Trabud has recorded 278 Form 4 filings for DIOD: 0 buys ($0) and 278 sells ($226.9M). Over the full record that is net selling of $226.9M.
How many insiders trade DIOD stock?
16 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for DIODES INC /DEL/. The most recent filing was accepted on Jun 1, 2026.
Where does Trabud get DIOD insider trading data?
All DIOD insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.