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WESTERN DIGITAL CORP

M 10b5-1 Plan

$ Value

$0

Shares

6

Price

$0

Filed

Aug 25

Insider

Name

Zamiska Gene M.

Title

SVP, Global Accounting & Chief

CIK

0001456385

Roles

Officer

Transaction Details

Transaction Date

2025-08-21

Code

M

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

50

Footnotes

The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. | Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). | The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025.

Filing Info

Accession No.

0001266824-25-000156

Form Type

4

Issuer CIK

0000106040

Zamiska Gene M.'s History

Date Ticker Type Value
2025-09-18 WDC A $0
2025-08-28 WDC $29K
2025-08-27 WDC M $0
2025-08-27 WDC F $28K
2025-08-27 WDC M $0
2025-08-26 WDC $64K
2025-08-25 WDC M $0
2025-08-25 WDC F $63K
2025-08-25 WDC M $0
2025-08-22 WDC $137K

Other Insiders at WDC (90d)

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STREETER STEPHANIE A 2026-03-18
DOLUCA TUNC 2026-03-18
KIDDOO BRUCE E 2026-03-18
MASSENGILL MATTHEW E $9.6M 2026-03-18
Cole Martin I $1.6M 2026-03-18
Alexy Kimberly 2026-03-18
Sennesael Kris
Chief Financial Officer
2026-03-18
Oulman Roxanne 2026-03-18
Feller Brad
SVP & Chief Accounting Officer
2026-03-18
Tan Irving
Chief Executive Officer
$5.1M 2026-03-20
Tregillis Cynthia L
Chief Legal Officer & Corp Sec
$4.7M 2026-04-21
Davis Brian Scott
Chief Sales & Mrktng Officer
$2.8M 2026-03-20
Gubbi Vidyadhara K
Chief of Global Operations
$4.9M 2026-04-20
Shihab Ahmed Mohammed
Chief Product Officer
2026-03-18