Western Digital (NASDAQ: WDC) legal chief sells 6,780 company shares

Rhea-AI Filing Summary

Western Digital Corporation’s Chief Legal Officer and Corporate Secretary, Cynthia Tregillis, reported selling 6,780 shares of Western Digital common stock on February 6, 2026, at a price of $270.49 per share. After this sale, she directly owned 136,538 shares of Western Digital common stock.

Insider Trade Summary

Net Seller: 6,780 shares ($1,833,922)

Net Sell 1 txn

Insider Tregillis Cynthia L

Role Chief Legal Officer & Corp Sec

Sold 6,780 shs ($1.83M)

Type	Security	Shares	Price	Value
Sale	Common Stock	6,780	$270.49	$1.83M

Holdings After Transaction: Common Stock — 136,538 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tregillis Cynthia L

(Last) (First) (Middle)

C/O WESTERN DIGITAL CORPORATION

5601 GREAT OAKS PARKWAY

(Street)

SAN JOSE CA 95119

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WESTERN DIGITAL CORP [ WDC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal Officer & Corp Sec

3. Date of Earliest Transaction (Month/Day/Year)
02/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/06/2026		S		6,780	D	$270.49	136,538	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	By: /s/ Sandra Garcia Attorney-in-Fact For: Cynthia Tregillis	02/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Cynthia Tregillis report at Western Digital (WDC)?

Cynthia Tregillis reported selling 6,780 shares of Western Digital common stock at $270.49 per share on February 6, 2026. Following this transaction, she directly held 136,538 Western Digital shares, as disclosed in the Form 4 filing.

What role does Cynthia Tregillis hold at Western Digital (WDC)?

Cynthia Tregillis serves as Chief Legal Officer & Corporate Secretary of Western Digital. This role means she oversees the company’s legal affairs and corporate governance, making her a key executive and subject to SEC insider reporting rules such as Form 4 filings for share transactions.

How many Western Digital shares does Cynthia Tregillis own after the reported sale?

After selling 6,780 shares, Cynthia Tregillis directly owns 136,538 shares of Western Digital common stock. This post-transaction balance reflects her remaining direct beneficial ownership as reported in the Form 4 insider trading disclosure filed with the SEC.

At what price were the Western Digital shares sold in this Form 4 transaction?

The reported sale by Cynthia Tregillis involved 6,780 Western Digital shares at a price of $270.49 per share. This per-share transaction price is directly disclosed in the Form 4 and applies to the full number of shares sold on that date.

When did the Cynthia Tregillis insider sale at Western Digital (WDC) occur?

The insider sale by Cynthia Tregillis took place on February 6, 2026. On that date, she sold 6,780 shares of Western Digital common stock at $270.49 per share, as reported in the SEC Form 4 transaction table.