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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
2025-05-13 Tan Irving Chief Executive Officer Sale 10b5-1 −11,379 $48.19 $548K 605,481
2025-05-12 Sennesael Kris EVP & CFO Grant or award +171,784 171,784
2025-04-20 Tregillis Cynthia L CLO and Corp. Sec. Shares withheld for taxes −1,172 $36.51 $43K 159,075
2025-04-20 Gubbi Vidyadhara K Chief of Global Ops Shares withheld for taxes −2,129 $36.51 $78K 175,133
2025-03-20 Davis Brian Scott Chief Sales & Mrktg Off Shares withheld for taxes −669 $44.51 $30K 140,903
2025-03-20 Tan Irving Chief Executive Officer Shares withheld for taxes −457 $44.51 $20K 616,860
2025-03-17 Shihab Ahmed Mohammed Chief Product Officer Grant or award +156,424 156,424
2025-03-12 Zamiska Gene M. SVP & Princ. Acctg Officer Sale 10b5-1 −456 $43.37 $20K 43,320
2025-03-07 Zamiska Gene M. SVP & Princ. Acctg Officer Sale 10b5-1 −1,659 $41.36 $69K 43,776
2025-03-06 Zamiska Gene M. SVP & Princ. Acctg Officer Shares withheld for taxes 10b5-1 −1,116 $41.45 $46K 45,435
2025-03-06 Tregillis Cynthia L CLO and Corp. Sec. Shares withheld for taxes −875 $41.45 $36K 160,247
2025-03-06 Gubbi Vidyadhara K Chief of Global Ops Shares withheld for taxes −1,492 $41.45 $62K 177,262
2025-03-06 Davis Brian Scott Chief Sales & Mrktg Off Shares withheld for taxes −1,529 $41.45 $63K 141,572
2025-03-06 Bennett Don R Interim CFO Shares withheld for taxes −1,644 $41.45 $68K 104,554
2025-03-03 Tregillis Cynthia L CLO and Corp. Sec. Grant or award +21,272 161,122
2025-03-03 Tan Irving Chief Executive Officer Grant or award +55,307 617,317
2025-03-03 Gubbi Vidyadhara K Chief of Global Ops Grant or award +42,544 178,754
2025-03-03 Davis Brian Scott Chief Sales & Mrktg Off Grant or award +21,272 143,101
2025-02-28 Oulman Roxanne Director Grant or award +4,068 4,068
2025-02-28 KIDDOO BRUCE E Director Grant or award +4,068 4,068

Page 37 of 42 · 821 trades