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Diodes Incorporated

TechnologyRussell 2000

Diodes Incorporated insider trading

Diodes Incorporated files with the SEC as a Semiconductors & Related Devices company headquartered in Plano, TX. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent DIOD insider transactions

8 insiders traded DIOD on the open market between Feb 20, 2026 and May 29, 2026 — 20 sales worth $15.4M.

Bought
—
Sold
$15.4M

none on a 10b5-1 plan

Net
−$15.4M
Insiders
8

Open-market purchases (code P) and sales (code S) from Diodes Incorporated's own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every DIOD Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

DIOD insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 8 insiders traded DIOD on the open market: 0 purchases and 41 sales worth $18.9M. In the last four quarters alone: 0 purchases and 32 sales ($17M), by 8 insiders.

QuarterBoughtSold
Q2 2026—−$7.6M16 sales
Q1 2026—−$8.9M11 sales
Q4 2025—−$284.5K2 sales
Q3 2025—−$221.4K3 sales
Q2 2025——
Q1 2025—−$262.3K3 sales
Q4 2024——
Q3 2024—−$1.6M6 sales
Largest sale
−$4.4M of DIOD by Lu Keh Shew (Director) on Feb 20, 2026.

Open-market transactions through Jun 30, 2026most recent first

  • Tang Francis

    Chief Technology Officer

    −$1.7M

    May 29, 2026

    15,330 sh · $112.04

  • Zhao Jin

    President, Diodes Asia

    −$394.2K

    May 26, 2026

    3,689 sh · $106.86

  • Tsong Andy

    SVP Worldwide Products Group

    −$169.2K

    May 26, 2026

    1,582 sh · $106.96

  • Yang Emily

    SVP Worldwide Sales/Marketing

    −$202.9K

    May 15, 2026

    2,000 sh · $101.47

  • Whitmire Brett R

    CFO

    −$1.7M

    May 13, 2026

    16,556 sh · $103.34

  • Zhao Jin

    President, Diodes Asia

    −$282.5K

    May 12, 2026

    2,760 sh · $102.36

  • Yang Emily

    SVP Worldwide Sales/Marketing

    −$150.5K

    Feb 24, 2026

    2,154 sh · $69.89

  • Lu Keh Shew

    Director

    −$4.4M

    Feb 20, 2026

    64,266 sh · $67.74

  • Lu Keh Shew

    Director

    −$3.2M

    Feb 20, 2026

    46,734 sh · $67.78

  • Whitmire Brett R

    CFO

    −$424K

    Feb 13, 2026

    5,953 sh · $71.22

  • Tsong Andy

    SVP Worldwide Products Group

    −$230.9K

    Feb 13, 2026

    3,277 sh · $70.46

  • Yang Emily

    SVP Worldwide Sales/Marketing

    −$71.9K

    Feb 13, 2026

    1,000 sh · $71.89

  • Yu Gary

    President and CEO · Director

    −$176.5K

    Feb 03, 2026

    2,900 sh · $60.85

  • Yang Emily

    SVP Worldwide Sales/Marketing

    −$57.8K

    Feb 03, 2026

    950 sh · $60.85

  • Whitmire Brett R

    CFO

    −$50.5K

    Feb 03, 2026

    830 sh · $60.85

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Diodes Incorporated company record

SEC industry classification
Semiconductors & Related Devices
Headquarters
Plano, TX
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0000029002

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought DIOD

What the stock actually did in the 90 days following each open-market purchase

Don't check DIOD — let it ping you

Get told the moment an insider moves on DIOD

Pro watches Diodes Incorporated for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add DIOD to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track DIOD on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read DIOD insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

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Questions

Are DIOD insiders buying or selling?
Between Feb 20, 2026 and May 29, 2026, 8 Diodes Incorporated insiders made no open-market purchases and 20 sales worth $15.4M, a net sale of $15.4M.
How much DIOD stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 8 Diodes Incorporated insiders made no open-market purchases and 41 sales worth $18.9M. In the four quarters to Jun 30, 2026: no purchases and 32 sales ($17M). The largest sale was Lu Keh Shew selling $4.4M on Feb 20, 2026.
What was the largest recent DIOD insider trade?
Lu Keh Shew (Director) sold $4.4M of DIOD stock on Feb 20, 2026 at about $67.74 a share.
When did an insider last buy DIOD shares?
No open-market purchase by a Diodes Incorporated insider appears in the filings from Feb 20, 2026 to May 29, 2026 — every recorded open-market transaction in that period was a sale.
Where does DIOD insider trading data come from?
From the Form 4 filings Diodes Incorporated's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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