DIOD

DIODES INC /DEL/

Name: DIODES INC /DEL/ insider trading (SEC Form 4) history
Creator: U.S. Securities and Exchange Commission

SEC CIK 29002

$108.75 +83.5% · 90 days

90-day buys

0 open-market

90-day sells

$7.62M

16 open-market

Net insider flow

−$7.62M

Net selling

Filings shown

Most recent

At a glance

Over the last 90 days, insiders at DIOD have sold a net $7.62M of stock (0 open-market buys vs 16 sells).

Largest recent trade: Lu Keh Shew sold $4.35M of DIOD, trimming their stake 26%.

Most active filer: Yang Emily, with 5 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for DIOD, newest first

View on SEC EDGAR ↗

DIOD

DIODES INC /DEL/

Sell Tang Francis · Chief Technology Officer · Open-market sale · filed 1w ago ΔOwn −18%

Tang Francis sold $1.72M of DIOD, trimming their stake 18%.

−$1.72M

15,330 sh @ $112

DIOD

DIODES INC /DEL/

Sell White Richard Dallas · Corporate Secretary · Open-market sale · filed 1w ago ΔOwn −9.0%

White Richard Dallas sold $104.5K of DIOD, trimming their stake 9%.

−$104.5K

1,000 sh @ $104

DIOD

DIODES INC /DEL/

Sell White Richard Dallas · Corporate Secretary · Open-market sale · filed 1w ago ΔOwn −20%

White Richard Dallas sold $214K of DIOD, trimming their stake 20%.

−$214K

2,000 sh @ $107

DIOD

DIODES INC /DEL/

Sell Yang Emily · SVP Worldwide Sales/Marketing · Open-market sale · filed 2w ago ΔOwn −4.6%

Yang Emily sold $330.2K of DIOD, trimming their stake 5%.

−$330.2K

3,000 sh @ $110

DIOD

DIODES INC /DEL/

Sell Tang Francis · Chief Technology Officer · Open-market sale · filed 2w ago ΔOwn −5.4%

Tang Francis sold $550.4K of DIOD, trimming their stake 5%.

−$550.4K

5,000 sh @ $110

DIOD

DIODES INC /DEL/

Sell Yu Gary · Director, President and CEO · Open-market sale · filed 2w ago ΔOwn −3.2%

Yu Gary sold $399.8K of DIOD, trimming their stake 3%.

−$399.8K

3,632 sh @ $110

DIOD

DIODES INC /DEL/

Tax withholding LU KEH SHEW · Insider · Tax withholding · filed 2w ago ΔOwn −2.1%

−$213.2K

1,970 sh @ $108

DIOD

DIODES INC /DEL/

Sell Zhao Jin · President, Diodes Asia · Open-market sale · filed 2w ago ΔOwn −7.8%

Zhao Jin sold $394.2K of DIOD, trimming their stake 8%.

−$394.2K

3,689 sh @ $107

DIOD

DIODES INC /DEL/

Sell Tsong Andy · SVP Worldwide Products Group · Open-market sale · filed 2w ago ΔOwn −3.2%

Tsong Andy sold $169.2K of DIOD, trimming their stake 3%.

−$169.2K

1,582 sh @ $107

DIOD

DIODES INC /DEL/

Sell Yang Emily · SVP Worldwide Sales/Marketing · Open-market sale · filed 2w ago ΔOwn −3.0%

Yang Emily sold $215K of DIOD, trimming their stake 3%.

−$215K

2,000 sh @ $108

DIOD

DIODES INC /DEL/

Sell Tang Francis · Chief Technology Officer · Open-market sale · filed 2w ago ΔOwn −4.3%

Tang Francis sold $446.8K of DIOD, trimming their stake 4%.

−$446.8K

4,137 sh @ $108

DIOD

DIODES INC /DEL/

Tax withholding Yu Gary · Director, President and CEO · Tax withholding · filed 2w ago ΔOwn −0.5%

−$64.1K

592 sh @ $108

DIOD

DIODES INC /DEL/

Sell Yang Emily · SVP Worldwide Sales/Marketing · Open-market sale · filed 3w ago ΔOwn −2.9%

Yang Emily sold $193.6K of DIOD, trimming their stake 3%.

−$193.6K

2,000 sh @ $97

DIOD

DIODES INC /DEL/

Gift Yu Gary · Director, President and CEO · Gift · filed 3w ago ΔOwn −0.3%

−$0

300 sh

DIOD

DIODES INC /DEL/

Sell Yang Emily · SVP Worldwide Sales/Marketing · Open-market sale · filed 3w ago ΔOwn −2.8%

Yang Emily sold $202.9K of DIOD, trimming their stake 3%.

−$202.9K

2,000 sh @ $101

DIOD

DIODES INC /DEL/

Sell Whitmire Brett R · CFO · Open-market sale · filed May 13, 2026 ΔOwn −27%

Whitmire Brett R sold $1.71M of DIOD, trimming their stake 27%.

−$1.71M

16,556 sh @ $103

DIOD

DIODES INC /DEL/

Sell Zhao Jin · President, Diodes Asia · Open-market sale · filed May 13, 2026 ΔOwn −5.5%

Zhao Jin sold $282.5K of DIOD, trimming their stake 6%.

−$282.5K

2,760 sh @ $102

DIOD

DIODES INC /DEL/

Sell Tsong Andy · SVP Worldwide Products Group · Open-market sale · filed May 13, 2026 ΔOwn −5.1%

Tsong Andy sold $291.7K of DIOD, trimming their stake 5%.

−$291.7K

2,652 sh @ $110

DIOD

DIODES INC /DEL/

Sell Tang Francis · Chief Technology Officer · Open-market sale · filed May 13, 2026 ΔOwn −3.7%

Tang Francis sold $393.4K of DIOD, trimming their stake 4%.

−$393.4K

3,643 sh @ $108

DIOD

DIODES INC /DEL/

Grant/award Chen Button Angie · Director · Grant/award · filed May 13, 2026 ΔOwn +43%

+$0

6,000 sh

DIOD

DIODES INC /DEL/

Grant/award Bull Elizabeth · Director · Grant/award · filed May 13, 2026 ΔOwn +33%

+$0

3,000 sh

DIOD

DIODES INC /DEL/

Grant/award Chen Warren · Director · Grant/award · filed May 13, 2026 ΔOwn +30%

+$0

3,000 sh

DIOD

DIODES INC /DEL/

Grant/award Su Huey-Jen Jenny · Director · Grant/award · filed May 13, 2026 ΔOwn +100%

+$0

3,000 sh

DIOD

DIODES INC /DEL/

Grant/award Yu Gary · Director, President and CEO · Grant/award · filed May 13, 2026 ΔOwn +2.7%

+$0

3,000 sh

DIOD

DIODES INC /DEL/

Grant/award RITTER PHILIP J · Director · Grant/award · filed May 13, 2026 ΔOwn NEW

+$0

3,000 sh

DIOD

DIODES INC /DEL/

Sell Yang Emily · SVP Worldwide Sales/Marketing · Open-market sale · filed Feb 26, 2026 ΔOwn −2.9%

Yang Emily sold $150.6K of DIOD, trimming their stake 3%.

−$150.6K

2,154 sh @ $70

DIOD

DIODES INC /DEL/

Sell Yu Gary · Director, President and CEO · Open-market sale · filed Feb 26, 2026 ΔOwn −1.8%

Yu Gary sold $140K of DIOD, trimming their stake 2%.

−$140K

2,000 sh @ $70

DIOD

DIODES INC /DEL/

Sell LU KEH SHEW · Director · Open-market sale · filed Feb 24, 2026 ΔOwn −17%

Lu Keh Shew sold $3.17M of DIOD, trimming their stake 17%.

−$3.17M

46,734 sh @ $68

DIOD

DIODES INC /DEL/

Sell LU KEH SHEW · Director · Open-market sale · filed Feb 24, 2026 ΔOwn −26%

Lu Keh Shew sold $4.35M of DIOD, trimming their stake 26%.

−$4.35M

64,266 sh @ $68

DIOD

DIODES INC /DEL/

Sell Whitmire Brett R · CFO · Open-market sale · filed Feb 17, 2026 ΔOwn −8.9%

Whitmire Brett R sold $424K of DIOD, trimming their stake 9%.

−$424K

5,953 sh @ $71

About DIOD insider activity

This page tracks every recent Form 4 filed for DIODES INC /DEL/ with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is DIOD insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for DIODES INC /DEL/ usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.