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sellModerate cluster of 410b5-1 plan

Martin I Cole sold $1.7M of WDC

director at WESTERN DIGITAL CORP. 3,280 shares at an average of $511.16, traded Jun 9, 2026, filed Jun 11, 2026.

Warning score
40
Value
$1.7M
3,280 shares
Holdings after
26,153
-11% from before
From 52-week low
+832%
low $55.50, close $517.55
From 52-week high
-13%
high $593.76, as of Jun 9, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $1.7M at market
    +25
  • Share of holdings sold
    Sold 11% of holdings
    +5
  • Cluster
    4 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

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.

WDCOct 13, 2026 · close 380.71
Since filing Jun 11, 2026: -28.0%SPY +6.0% · excess -34.0%

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 0001266824-26-000126, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$484.28$23k29,385Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-16$485.54$7,76929,369Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$486.87$23k29,321Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-16$488.06$7,80929,305Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-38$491.06$19k29,267Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-30$492.38$15k29,237Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-44$493.64$22k29,193Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-32$494.63$16k29,161Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$497.47$24k29,113Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$498.95$24k29,065Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-16$499.69$7,99529,049Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-64$501.72$32k28,985Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-128$502.87$64k28,857Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-80$503.80$40k28,777Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-96$505.51$49k28,681Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-96$507.94$49k28,585Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-32$509.16$16k28,553Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-326$510.61$166k28,227Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-310$511.67$159k27,917Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-316$513.14$162k27,601Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-296$514.09$152k27,305Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-392$515.40$202k26,913Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-112$516.72$58k26,801Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-216$517.59$112k26,585Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$519.25$25k26,537Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-160$521.14$83k26,377Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-32$523.23$17k26,345Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-48$524.72$25k26,297Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-16$525.56$8,40926,281Jun 11, 2026
Jun 9, 2026SOpen-market sale
Common Stock10b5-1
-128$527.22$67k26,153Jun 11, 2026

Related signals

Other insiders at WESTERN DIGITAL CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
WDCsell 3
WESTERN DIGITAL CORP
Vidyadhara K Gubbi
Chief of Global Operations
$825k
1,795 shares
-2%
7Weak
WDCsell 310b5-1
WESTERN DIGITAL CORP
Cynthia L Tregillis
Chief Legal Officer & Corp Sec
$195k
432 shares
-0%
60Notable
WDCsell 3
WESTERN DIGITAL CORP
Stephanie A Streeter
director
$2.5M
5,600 shares
-14%
16Weak
WDCsell 310b5-1
WESTERN DIGITAL CORP
Cynthia L Tregillis
Chief Legal Officer & Corp Sec
$696k
1,483 shares
-1%
11Weak
WDCsell 410b5-1
WESTERN DIGITAL CORP
Cynthia L Tregillis
Chief Legal Officer & Corp Sec
$417k
919 shares
-1%
45Moderate
WDCsell 310b5-1
WESTERN DIGITAL CORP
Irving Tan
Chief Executive Officer
$8.9M
20,000 shares
-3%
40Moderate
WDCsell 310b5-1
WESTERN DIGITAL CORP
Martin I Cole
director
$1.7M
3,808 shares
-15%
19Weak
WDCsell 310b5-1
WESTERN DIGITAL CORP
Martin I Cole
director
$89k
192 shares
-1%
5Weak
WDCsell 210b5-1
WESTERN DIGITAL CORP
Cynthia L Tregillis
Chief Legal Officer & Corp Sec
$428k
808 shares
-1%
26Weak
WDCsell 410b5-1
WESTERN DIGITAL CORP
Martin I Cole
director
$386k
720 shares
-3%

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.

Martin I Cole sold $1.7M of WDC | InsiderTell