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$WDC All transactions

WESTERN DIGITAL CORP

M 10b5-1 Plan

$ Value

$0

Shares

3

Price

$0

Filed

Feb 24

Insider

Name

Tregillis Cynthia L

Title

Chief Legal Officer & Corp Sec

CIK

0002057088

Roles

Officer

Transaction Details

Transaction Date

2026-02-20

Code

M

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

136,541

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 May 23, 2025.

Filing Info

Accession No.

0001266824-26-000021

Form Type

4

Issuer CIK

0000106040

Tregillis Cynthia L's History

Date Ticker Type Value
2026-04-21 WDC $137K
2026-04-20 WDC M $0
2026-04-20 WDC F $489K
2026-04-20 WDC M $0
2026-03-18 WDC A $0
2026-03-04 WDC $200K
2026-03-04 WDC $2.3M
2026-03-03 WDC M $0
2026-03-03 WDC F $701K
2026-03-03 WDC M $0

Other Insiders at WDC (90d)

Insider Bought Sold Last
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