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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
2026-09-20 Davis Brian Scott Chief Sales & Mrktng Officer Shares withheld for taxes −963.03 $441.36 $425K 99,491.35
2026-09-20 Davis Brian Scott Chief Sales & Mrktng Officer Option exercise · Dividend Equivalent Rights −8.39 165.68
2026-09-17 Tregillis Cynthia L Chief Legal Officer & Corp Sec Grant or award · Dividend Equivalent Rights +27.38 297.86
2026-09-17 Tan Irving Chief Executive Officer Grant or award · Dividend Equivalent Rights +83.3 857.24
2026-09-17 STREETER STEPHANIE A Director Grant or award · Dividend Equivalent Rights +0.56 2.68
2026-09-17 Shihab Ahmed Mohammed Chief Product Officer Option exercise +56 163,758
2026-09-17 Shihab Ahmed Mohammed Chief Product Officer Shares withheld for taxes −5,150 $423.87 $2.2M 158,608
2026-09-17 Shihab Ahmed Mohammed Chief Product Officer Grant or award · Dividend Equivalent Rights +42.2 453.16
2026-09-17 Shihab Ahmed Mohammed Chief Product Officer Option exercise · Dividend Equivalent Rights −56.52 396.63
2026-09-17 Sennesael Kris Chief Financial Officer Grant or award · Dividend Equivalent Rights +46.51 490.83
2026-09-17 Oulman Roxanne Director Grant or award · Dividend Equivalent Rights +0.56 2.68
2026-09-17 MASSENGILL MATTHEW E Director Grant or award · Dividend Equivalent Rights +10.27 121.11
2026-09-17 KIDDOO BRUCE E Director Grant or award · Dividend Equivalent Rights +0.56 2.68
2026-09-17 Gubbi Vidyadhara K Chief of Global Operations Grant or award · Dividend Equivalent Rights +21.02 215.15
2026-09-17 Feller Brad SVP, Global Accounting & Chief Grant or award · Dividend Equivalent Rights +4.24 17.47
2026-09-17 DOLUCA TUNC Director Grant or award · Dividend Equivalent Rights +0.56 2.68
2026-09-17 Davis Brian Scott Chief Sales & Mrktng Officer Grant or award · Dividend Equivalent Rights +16.81 174.07
2026-09-17 Das Manuvir Director Grant or award · Dividend Equivalent Rights +0.27 0.44
2026-09-17 Cole Martin I Director Grant or award · Dividend Equivalent Rights +0.68 3.24
2026-09-17 Alexy Kimberly Director Grant or award · Dividend Equivalent Rights +0.56 2.68

Page 2 of 42 · 821 trades