[144] Western Digital Corp. SEC Filing

Rhea-AI Filing Summary

Form 144 filed for Western Digital Corp. (WDC). The filer notifies a proposed sale of 353 common shares valued at $28,557.70 to be executed on 08/28/2025 through Morgan Stanley Smith Barney LLC on NASDAQ. The reported shares were acquired as restricted stock on 08/27/2025 from the issuer and payment was recorded on the same date. The filing also discloses five prior sales by the same person in the last three months, totaling 7,776 shares with listed gross proceeds for each transaction. The filing includes the representation that the seller is not aware of undisclosed material adverse information about the issuer.

Positive

• Planned sale fully disclosed with broker, date, and amount (353 shares, $28,557.70)
• Prior sales transparency: five recent transactions are itemized with dates and gross proceeds
• Acquisition type disclosed: shares were acquired as restricted stock on 08/27/2025

Negative

• Insider has recently sold shares in multiple transactions over the past three months (total 7,776 shares)
• Proposed sale follows immediate acquisition (restricted stock acquired 08/27/2025, proposed sale 08/28/2025)

Insights

Securities Analyst

TL;DR: Insider sale disclosure shows recent, small-scale dispositions and a proposed sale of 353 restricted shares on 08/28/2025.

This Form 144 documents a routine notice of proposed sale under Rule 144. The transaction size (353 shares, $28,557.70) is small relative to the reported outstanding shares (346,922,126), and the securities were reported as restricted stock acquired 08/27/2025. The filing also lists five prior sales by the same person in the past three months totaling 7,776 shares with itemized gross proceeds. These disclosures are procedural and provide transparency on insider liquidity events without additional financial detail.

Corporate Governance Expert

TL;DR: The filing fulfills disclosure obligations; recent sales are documented and the seller affirms no undisclosed material information.

The Form 144 contains the seller's certification regarding material information and lists the broker, timing, and amounts for both the proposed sale and recent transactions. It notes that the shares to be sold were acquired as restricted stock from the issuer on 08/27/2025. From a governance perspective, the filing meets Rule 144 notification requirements and provides investors with clear records of insider selling activity.

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	353	28557.70	346922126	08/28/2025	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	08/27/2025	Restricted Stock	ISSUER			353	08/27/2025	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
GENE M ZAMISKA 5601 Great Oaks Parkway San Jose CA 95119	Common	08/26/2025	814	64387.40
GENE M ZAMISKA 5601 Great Oaks Parkway San Jose CA 95119	Common	08/22/2025	1828	136697.84
GENE M ZAMISKA 5601 Great Oaks Parkway San Jose CA 95119	Common	08/21/2025	3160	239148.80
GENE M ZAMISKA 5601 Great Oaks Parkway San Jose CA 95119	Common	06/17/2025	245	14212.45
GENE M ZAMISKA 5601 Great Oaks Parkway San Jose CA 95119	Common	06/05/2025	1729	94887.52

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 the Form 144 for WDC disclose about the proposed sale?

The filing discloses a proposed sale of 353 common shares valued at $28,557.70 to be executed on 08/28/2025 via Morgan Stanley Smith Barney LLC on NASDAQ.

When were the shares to be sold by the WDC filer acquired?

The shares were acquired as restricted stock from the issuer on 08/27/2025 and payment was recorded on the same date.

How many shares outstanding does the filing report for WDC?

The filing lists 346,922,126 shares outstanding for the class of securities to be sold.

What recent insider sales are disclosed in the Form 144 for WDC?

The filing lists five sales in the past three months by the same person totaling 7,776 shares with individual gross proceeds shown for each transaction.

Which broker is handling the proposed WDC sale?

The proposed sale is to be handled by Morgan Stanley Smith Barney LLC, Executive Financial Services located at 1 New York Plaza, New York, NY.