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sellWeak cluster of 2

Emily Yang sold $53k of DIOD

SVP Worldwide Sales/Marketing at DIODES INC /DEL/. 1,000 shares at an average of $53.22, traded Aug 19, 2025, filed Aug 21, 2025.

Warning score
30
Value
$53k
1,000 shares
Holdings after
60,479
-2% from before
From 52-week low
+55%
low $34.26, close $53.04
From 52-week high
-20%
high $66.30, as of Aug 19, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $53k at market
    +7
  • Share of holdings sold
    Sold 1.6% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +1.4%, 3m -20.4%, 6m +26.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

DIODOct 12, 2026 · close 90.62
Since filing Aug 21, 2025: +70.3%SPY +24.1% · excess +46.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0000950170-25-110646, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 19, 2025SOpen-market sale
Diodes Incorporated Common Stock
-1,000$53.22$53k60,479Aug 21, 2025

Related signals

Other insiders at DIODES INC /DEL/ and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
60Notable
DIODsell 6
DIODES INC /DEL/
Francis Tang
Chief Technology Officer
$1.7M
15,330 shares
-18%
54Moderate
DIODsell 6
DIODES INC /DEL/
Richard Dallas White
Corporate Secretary
$319k
3,000 shares
-27%
55Moderate
DIODsell 7
DIODES INC /DEL/
Francis Tang
Chief Technology Officer
$997k
9,137 shares
-10%
49Moderate
DIODsell 7
DIODES INC /DEL/
Emily Yang
SVP Worldwide Sales/Marketing
$545k
5,000 shares
-7%
51Moderate
DIODsell 7
DIODES INC /DEL/
Jin Zhao
President, Diodes Asia
$394k
3,689 shares
-8%
56Moderate
DIODsell 7
DIODES INC /DEL/
Gary Yu
President and CEO
$400k
3,632 shares
-3%
41Moderate
DIODsell 7
DIODES INC /DEL/
Andy Tsong
SVP Worldwide Products Group
$169k
1,582 shares
-3%
42Moderate
DIODsell 7
DIODES INC /DEL/
Emily Yang
SVP Worldwide Sales/Marketing
$194k
2,000 shares
-3%
42Moderate
DIODsell 7
DIODES INC /DEL/
Emily Yang
SVP Worldwide Sales/Marketing
$203k
2,000 shares
-3%
46Moderate
DIODsell 5
DIODES INC /DEL/
Francis Tang
Chief Technology Officer
$393k
3,643 shares
-4%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Emily Yang sold $53k of DIOD | InsiderTell