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CIK 0000106040 · Large accelerated filer

WESTERN DIGITAL CORP

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Ticker
WDC
Exchange
Nasdaq
Industry
Computer Storage Devices
FY end
Jul 3
Incorporated
DE
Entity type
operating
EIN
330956711
Phone
408-717-6000
Business address
5601 GREAT OAKS PARKWAY, SAN JOSE, CA, 95119
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$6,541,831
in 7 filings, $3.2M under 10b5-1 plans

Net −$6,541,831. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. STREETER STEPHANIE A −$2.5M Director sold 14% of stake
  2. Tregillis Cynthia L −$1.6M Chief Legal Officer & Corp Sec sold 3% of stake
  3. Cole Martin I −$1.6M Director sold 19% of stake
  4. Gubbi Vidyadhara K −$825K Chief of Global Operations sold 2% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-06-20 Tregillis Cynthia L CLO and Corp. Sec. Shares withheld for taxes −204 $59.29 $12K 157,684
2025-06-20 Tregillis Cynthia L CLO and Corp. Sec. Option exercise · Dividend Equivalent Rights −0.88 221.84
2025-06-20 Gubbi Vidyadhara K Chief of Global Ops Option exercise +6 173,648
2025-06-20 Gubbi Vidyadhara K Chief of Global Ops Shares withheld for taxes −1,235 $59.29 $73K 172,413
2025-06-20 Gubbi Vidyadhara K Chief of Global Ops Option exercise · Dividend Equivalent Rights −6.18 211.45
2025-06-20 Davis Brian Scott Chief Sales & Mrktg Off Option exercise +3 139,426
2025-06-20 Davis Brian Scott Chief Sales & Mrktg Off Shares withheld for taxes −669 $59.29 $40K 138,757
2025-06-20 Davis Brian Scott Chief Sales & Mrktg Off Option exercise · Dividend Equivalent Rights −3.27 176.7
2025-06-18 Zamiska Gene M. SVP & Princ. Acctg Officer Grant or award · Dividend Equivalent Rights +66.94 66.94
2025-06-18 Tregillis Cynthia L CLO and Corp. Sec. Grant or award · Dividend Equivalent Rights +222.72 222.72
2025-06-18 Tan Irving Chief Executive Officer Grant or award · Dividend Equivalent Rights +687.94 687.94
2025-06-18 STREETER STEPHANIE A Director Grant or award · Dividend Equivalent Rights +10.76 10.76
2025-06-18 Shihab Ahmed Mohammed Chief Product Officer Grant or award · Dividend Equivalent Rights +264.27 264.27
2025-06-18 Sennesael Kris Chief Financial Officer Grant or award · Dividend Equivalent Rights +290.22 290.22
2025-06-18 Oulman Roxanne Director Grant or award · Dividend Equivalent Rights +6.87 6.87
2025-06-18 MASSENGILL MATTHEW E Director Grant or award · Dividend Equivalent Rights +46.14 46.14
2025-06-18 KIDDOO BRUCE E Director Grant or award · Dividend Equivalent Rights +6.87 6.87
2025-06-18 Gubbi Vidyadhara K Chief of Global Ops Grant or award · Dividend Equivalent Rights +217.63 217.63
2025-06-18 DOLUCA TUNC Director Grant or award · Dividend Equivalent Rights +9.22 9.22
2025-06-18 Davis Brian Scott Chief Sales & Mrktg Off Grant or award · Dividend Equivalent Rights +179.97 179.97

Page 35 of 42 · 821 trades