[144] Western Digital Corp. SEC Filing

Rhea-AI Filing Summary

Western Digital Corp. (WDC) filed a Form 144 disclosing a proposed sale of 5,597 common shares with an aggregate market value of $426,827.22, intended to trade on NASDAQ around 08/13/2025. The filing states the issuer has 348,878,365 shares outstanding, making the planned sale about 0.0016% of outstanding shares.

The securities were acquired recently as compensation: 4,142 shares from a 08/25/2024 restricted stock grant and 1,455 performance shares from 08/27/2024. The filer also reported prior dispositions in the past three months totaling 3,947 shares sold on 08/11/2025 for gross proceeds of $295,531.64. The notice includes the standard attestation that no undisclosed material adverse information is known to the seller.

Positive

• Transparent disclosure via Form 144 specifying shares, aggregate value, broker, and intended sale date
• Securities were granted as restricted stock and performance shares (08/25/2024 and 08/27/2024), clarifying acquisition source

Negative

• Insider selling activity: 3,947 shares were sold on 08/11/2025 for total gross proceeds of $295,531.64
• Additional planned sale of 5,597 shares scheduled ~08/13/2025 increases near-term insider dispositions

Insights

Financial Analyst

TL;DR: Routine Form 144 insider sale notice; the size is immaterial relative to shares outstanding.

The filing discloses a proposed sale of 5,597 shares valued at $426,827.22 against 348.88 million shares outstanding (≈0.0016%). Prior sales of 3,947 shares on 08/11/2025 generated $295,531.64. Given the minute percentage of outstanding stock and the fact the shares were recently acquired as restricted and performance awards, this appears to be a routine executive liquidity event rather than a market-moving disposition. The Form 144 provides required transparency for these transactions.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure consistent with Rule 144; attestation included.

The notice documents acquisition dates and types (restricted stock dated 08/25/2024 and performance shares dated 08/27/2024), prior sales data, and includes the seller's attestation that no material nonpublic information is known. For governance review, the filing is complete for a Rule 144 notice: it identifies broker, sale date target, and past three-month sales. The record supports oversight of insider trading activity but does not, on its face, indicate governance breaches or undisclosed material events.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5597	426827.22	348878365	08/13/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/25/2024	Restricted Stock	Issuer			4142	08/25/2024	Not Applicable
Common	08/27/2024	Performance Shares	Issuer			1455	08/27/2024	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	335	25083.13
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	485	36314.38
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	538	40282.75
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	371	27778.63
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	538	40282.75
VIDYADHARA K GUBBI 5601 Great Oaks Parkway San Jose CA 95119	Common	08/11/2025	1680	125790.00

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does WDC's Form 144 disclose about the planned sale?

The Form 144 discloses a proposed sale of 5,597 common shares with an aggregate market value of $426,827.22, to be executed on NASDAQ around 08/13/2025.

How many shares does WDC have outstanding and what percent does the sale represent?

The filing lists 348,878,365 shares outstanding; the proposed sale of 5,597 shares represents approximately 0.0016% of outstanding shares.

What were the acquisition sources and dates for the shares being sold?

The shares were acquired as compensation: 4,142 shares from restricted stock on 08/25/2024 and 1,455 performance shares on 08/27/2024.

Has the filer sold WDC shares recently?

Yes. The filer sold 3,947 shares on 08/11/2025 in multiple transactions, generating total gross proceeds of $295,531.64.

Does the Form 144 include any attestation about material nonpublic information?

Yes. The filer signed the notice attesting that they do not know any material adverse information about the issuer that has not been publicly disclosed.