DIOD
DIODES INC · Technology · Market cap $4.1B
Insiders sold $4.9M net in the last 90 days ·6 sellers, 0 buyers· latest Form 4 filed Jun 1, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$16.8M
reported sales (SEC code S)
Unique Insiders
8
in the rolling window
Latest filing
Aug 13, 2026
Tang Francis
DIODES INC (DIOD) has 36 SEC Form 4 filings (58 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Aug 13, 2026.
Inside the rolling window, 8 insiders at DIODES INC reported no open-market purchases and 26 open-market sales totaling $16.8M. The most active filer is SVP Worldwide Sales/Marketing Yang Emily with 7 filings. Insiders have net sold $16.2M over the trailing 6 months. The most recent open-market filing is a sale of 15,330 shares by Chief Technology Officer Tang Francis, dated May 29, 2026, worth $1.7M.
- Industry:Semiconductors
- CEO:Gary Yu
- Employees:7,989
- HQ:Plano, TX, US
- IPO:1966-11-10
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Technology Officer | Sale | 15,330 | $1.7M | Jun 1 | -12.9% | SEC ↗ | |
White Richard DallasFirst filing | Corporate Secretary | Sale | 3,000 | $319K | Jun 1 | -12.9% | SEC ↗ |
| President, Diodes Asia | Sale | 3,689 | $394K | May 27 | -18.6% | SEC ↗ | |
| SVP Worldwide Products Group | Sale | 1,582 | $169K | May 27 | -18.6% | SEC ↗ | |
| SVP Worldwide Sales/Marketing | Sale | 2,000 | $215K | May 27 | -18.6% | SEC ↗ | |
| SVP Worldwide Sales/Marketing | Sale | 3,000 | $330K | May 27 | -18.6% | SEC ↗ | |
| Chief Technology Officer | Sale | 4,137 | $447K | May 27 | -18.6% | SEC ↗ | |
| Chief Technology Officer | Sale | 5,000 | $550K | May 27 | -18.6% | SEC ↗ | |
Yu GaryFirst in 3 months | President and CEO | Sale | 3,632 | $400K | May 27 | -18.6% | SEC ↗ |
| SVP Worldwide Sales/Marketing | Sale | 2,000 | $194K | May 21 | — | SEC ↗ | |
| SVP Worldwide Sales/Marketing | Sale | 2,000 | $203K | May 19 | — | SEC ↗ | |
Zhao JinFirst in 3 months | President, Diodes Asia | Sale | 2,760 | $283K | May 13 | — | SEC ↗ |
| SVP Worldwide Products Group | Sale | 2,652 | $292K | May 13 | — | SEC ↗ | |
Tang FrancisFirst filing | Chief Technology Officer | Sale | 3,643 | $393K | May 13 | — | SEC ↗ |
| CFO | Sale | 16,556 | $1.7M | May 13 | — | SEC ↗ | |
| President and CEO | Sale | 2,000 | $140K | Feb 26 | — | SEC ↗ | |
| SVP Worldwide Sales/Marketing | Sale | 2,154 | $151K | Feb 26 | — | SEC ↗ | |
LU KEH SHEWFirst in 3 months | Director | Sale | 111,000 | $7.5M | Feb 24 | — | SEC ↗ |
| CFO | Sale | 5,953 | $424K | Feb 17 | — | SEC ↗ | |
| SVP Worldwide Sales/Marketing | Sale | 1,000 | $72K | Feb 17 | — | SEC ↗ | |
Tsong AndyFirst filing | SVP Worldwide Products Group | Sale | 3,277 | $231K | Feb 17 | — | SEC ↗ |
Whitmire Brett RFirst filing | CFO | Sale | 830 | $51K | Feb 4 | — | SEC ↗ |
Zhao JinFirst filing | President, Diodes Asia | Sale | 525 | $31K | Feb 4 | — | SEC ↗ |
Yang EmilyFirst filing | SVP Worldwide Sales/Marketing | Sale | 950 | $58K | Feb 4 | — | SEC ↗ |
Yu GaryFirst filing | President and CEO | Sale | 2,900 | $176K | Feb 4 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading DIOD 5 all-time
- RSen. Thomas Hawley TubervilleOther$1,001 - $15,0002023-10-16
- RSen. Thomas Hawley TubervillePurchase$1,001 - $15,0002023-04-03
- RSen. Thomas Hawley TubervillePurchase$1,001 - $15,0002023-04-03
- DSen. Thomas Richard CarperOther$1,001 - $15,0002023-04-17
- RSen. Thomas Roland TillisOther$1,001 - $15,0002015-02-13
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does DIOD have?
DIODES INC (DIOD) has 36 SEC Form 4 filings (58 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Aug 13, 2026.
When was the most recent SEC Form 4 filing for DIOD?
The most recent Form 4 filing for DIOD on Tracefour is dated Aug 13, 2026.
Who is the most active insider at DIOD?
The most active SEC Form 4 filer at DIOD in the rolling window is SVP Worldwide Sales/Marketing Yang Emily, with 7 filings.
What is the net insider flow at DIOD over the last 6 months?
Over the trailing 180 days, insiders at DIOD have net sold $16.2M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at DIOD in the current window?
Inside the rolling window, insiders at DIOD bought $0 and sold $16.8M based on SEC Form 4 filings.
Can I get alerts for DIOD insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at DIODES INC (DIOD). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
DIODES INC is in the Technology sector.