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$WDC All transactions

WESTERN DIGITAL CORP

▼ SELL 10b5-1 Plan

$ Value

$1.1M

Shares

4,411

Price

$258

Filed

Feb 6

Insider

Name

MASSENGILL MATTHEW E

Title

CIK

0001232826

Roles

Director

Transaction Details

Transaction Date

2026-02-05

Code

S

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

29,915

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 6, 2025. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $256.12 to a high of $257.09. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $257.14 to a high of $258.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $258.14 to a high of $259.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $259.15 to a high of $260.12. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $260.15 to a high of $261.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $261.19 to a high of $262.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $262.21 to a high of $263.14. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $263.40 to a high of $264.38. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $264.54 to a high of $265.51. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.57 to a high of $266.27. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. | Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.58 to a high of $268.53. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Filing Info

Accession No.

0001266824-26-000008

Form Type

4

Issuer CIK

0000106040

MASSENGILL MATTHEW E's History

Date Ticker Type Value
2026-03-18 WDC A $0
2026-02-05 WDC $667K
2026-02-05 WDC $1.1M
2026-02-05 WDC $1.8M
2026-02-05 WDC $1.3M
2026-02-05 WDC $1.6M
2026-02-05 WDC $941K
2026-02-05 WDC $604K
2026-02-05 WDC $686K
2026-02-05 WDC $583K

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 $8.5M 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