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[Form 4] Western Digital Corp. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

On 23 June 2025, Western Digital Corp. (WDC) filed a Form 4 disclosing that its SVP & Principal Accounting Officer, Gene M. Zamiska, automatically acquired 66.941 dividend-equivalent rights on 18 June 2025. These rights relate to previously granted restricted stock units (RSUs) and carry a conversion rate of one WDC common share (or cash equivalent) per right when the underlying RSUs vest. The acquisition was reported under transaction code “Aâ€� at a price of $0.00, indicating no cash outlay by the insider. After the transaction, Zamiska’s beneficial ownership in this derivative class stands at 66.941 units. No common-stock sales or other dispositions were reported, and the filing contains no additional equity transactions.

Il 23 giugno 2025, Western Digital Corp. (WDC) ha presentato un Modulo 4 comunicando che il suo SVP e Principal Accounting Officer, Gene M. Zamiska, ha acquisito automaticamente 66.941 diritti equivalenti a dividendi il 18 giugno 2025. Questi diritti si riferiscono a unità di azioni vincolate (RSU) precedentemente assegnate e prevedono un tasso di conversione di una azione ordinaria WDC (o equivalente in contanti) per diritto al momento della maturazione delle RSU sottostanti. L'acquisizione è stata segnalata con il codice di transazione “A� a un prezzo di 0,00 $, indicando che l'insider non ha sostenuto alcuna spesa in denaro. Dopo la transazione, la proprietà effettiva di Zamiska in questa categoria derivata è di 66.941 unità. Non sono state riportate vendite di azioni ordinarie né altre disposizioni, e la dichiarazione non contiene ulteriori transazioni azionarie.

El 23 de junio de 2025, Western Digital Corp. (WDC) presentó un Formulario 4 revelando que su SVP y Principal Oficial de Contabilidad, Gene M. Zamiska, adquirió automáticamente 66.941 derechos equivalentes a dividendos el 18 de junio de 2025. Estos derechos están relacionados con unidades restringidas de acciones (RSU) previamente otorgadas y tienen una tasa de conversión de una acción común de WDC (o equivalente en efectivo) por derecho cuando las RSU subyacentes se consolidan. La adquisición se reportó bajo el código de transacción “A� a un precio de $0.00, lo que indica que el insider no realizó ningún desembolso en efectivo. Tras la transacción, la propiedad beneficiaria de Zamiska en esta clase derivada es de 66.941 unidades. No se reportaron ventas de acciones comunes ni otras disposiciones, y la presentación no contiene transacciones adicionales de capital.

2025ë…� 6ì›� 23ì�, Western Digital Corp.(WDC)ëŠ� SVP ê²� ìˆ˜ì„ íšŒê³„ ì±…ìž„ìžì¸ Gene M. Zamiskaê°€ 2025ë…� 6ì›� 18ì¼ì— ìžë™ìœ¼ë¡œ 66,941ê°œì˜ ë°°ë‹¹ê¸� 등가권리ë¥� ì·¨ë“했다ê³� Form 4ë¥� 통해 공시했습니다. ì� ê¶Œë¦¬ë“¤ì€ ì´ì „ì—� ë¶€ì—¬ëœ ì œí•œ ì£¼ì‹ ë‹¨ìœ„(RSU)와 관련ë˜ë©�, 기초 RSUê°€ 성숙í•� 때마ë‹� 권리ë‹� WDC 보통ì£� 1ì£�(ë˜ëŠ” 현금 등가ë¬�)ë¡� 전환ë©ë‹ˆë‹�. 해당 ì·¨ë“ì€ ê±°ëž˜ 코드 “Aâ€ë¡œ ê°€ê²� $0.00ì—� ë³´ê³ ë˜ì–´ ë‚´ë¶€ìžê°€ 현금 ì§€ì¶œì„ í•˜ì§€ 않았ìŒì„ 나타냅니ë‹�. 거래 í›� Zamiskaì� ì� íŒŒìƒ í´ëž˜ìŠ¤ì— ëŒ€í•� 실질 ì†Œìœ ê¶Œì€ 66,941 단위입니ë‹�. 보통ì£� 매ê°ì´ë‚˜ 기타 ì²˜ë¶„ì€ ë³´ê³ ë˜ì§€ 않았으며, 추가 ì£¼ì‹ ê±°ëž˜ë� í¬í•¨ë˜ì–´ 있지 않습니다.

Le 23 juin 2025, Western Digital Corp. (WDC) a déposé un formulaire 4 révélant que son SVP et Principal Accounting Officer, Gene M. Zamiska, a automatiquement acquis 66 941 droits équivalents dividendes le 18 juin 2025. Ces droits concernent des unités d’actions restreintes (RSU) précédemment attribuées et comportent un taux de conversion d’une action ordinaire WDC (ou équivalent en espèces) par droit lors de la levée des RSU sous-jacentes. L’acquisition a été signalée sous le code de transaction « A » à un prix de 0,00 $, indiquant qu’aucune dépense en espèces n’a été engagée par l’initié. Après la transaction, la propriété bénéficiaire de Zamiska dans cette catégorie dérivée s’élève à 66 941 unités. Aucune vente d’actions ordinaires ni autre disposition n’a été rapportée, et le dépôt ne contient pas d’autres transactions sur actions.

Am 23. Juni 2025 reichte Western Digital Corp. (WDC) ein Formular 4 ein, in dem offengelegt wurde, dass sein SVP & Principal Accounting Officer, Gene M. Zamiska, am 18. Juni 2025 automatisch 66.941 Dividendenäquivalenzrechte erworben hat. Diese Rechte beziehen sich auf zuvor gewährte Restricted Stock Units (RSUs) und haben eine Umtauschrate von einer WDC-Stammaktie (oder Bargleichwert) pro Recht, sobald die zugrunde liegenden RSUs fällig werden. Der Erwerb wurde unter dem Transaktionscode „A� zu einem Preis von 0,00 $ gemeldet, was darauf hinweist, dass kein Baraufwand durch den Insider erfolgte. Nach der Transaktion hält Zamiska einen wirtschaftlichen Eigentumsanteil von 66.941 Einheiten an dieser Derivatklasse. Verkäufe von Stammaktien oder andere Veräußerungen wurden nicht gemeldet, und die Meldung enthält keine weiteren Eigenkapitaltransaktionen.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Small, routine insider accrual of 66.9 dividend rights; signals normal compensation, negligible market impact.

The filing reflects a customary feature of Western Digital’s equity compensation—dividend-equivalent rights that accrue proportionally to unvested RSUs. Because the rights cost $0.00 and total fewer than 70 shares, the economic value is immaterial relative to WDC’s market capitalization and daily trading volume. There is no open-market purchase or sale, so the transaction does not convey a directional view on valuation. From a governance standpoint, timely reporting under Section 16(a) maintains compliance, but investors should treat the disclosure as neutral from a signaling or valuation perspective.

Il 23 giugno 2025, Western Digital Corp. (WDC) ha presentato un Modulo 4 comunicando che il suo SVP e Principal Accounting Officer, Gene M. Zamiska, ha acquisito automaticamente 66.941 diritti equivalenti a dividendi il 18 giugno 2025. Questi diritti si riferiscono a unità di azioni vincolate (RSU) precedentemente assegnate e prevedono un tasso di conversione di una azione ordinaria WDC (o equivalente in contanti) per diritto al momento della maturazione delle RSU sottostanti. L'acquisizione è stata segnalata con il codice di transazione “A� a un prezzo di 0,00 $, indicando che l'insider non ha sostenuto alcuna spesa in denaro. Dopo la transazione, la proprietà effettiva di Zamiska in questa categoria derivata è di 66.941 unità. Non sono state riportate vendite di azioni ordinarie né altre disposizioni, e la dichiarazione non contiene ulteriori transazioni azionarie.

El 23 de junio de 2025, Western Digital Corp. (WDC) presentó un Formulario 4 revelando que su SVP y Principal Oficial de Contabilidad, Gene M. Zamiska, adquirió automáticamente 66.941 derechos equivalentes a dividendos el 18 de junio de 2025. Estos derechos están relacionados con unidades restringidas de acciones (RSU) previamente otorgadas y tienen una tasa de conversión de una acción común de WDC (o equivalente en efectivo) por derecho cuando las RSU subyacentes se consolidan. La adquisición se reportó bajo el código de transacción “A� a un precio de $0.00, lo que indica que el insider no realizó ningún desembolso en efectivo. Tras la transacción, la propiedad beneficiaria de Zamiska en esta clase derivada es de 66.941 unidades. No se reportaron ventas de acciones comunes ni otras disposiciones, y la presentación no contiene transacciones adicionales de capital.

2025ë…� 6ì›� 23ì�, Western Digital Corp.(WDC)ëŠ� SVP ê²� ìˆ˜ì„ íšŒê³„ ì±…ìž„ìžì¸ Gene M. Zamiskaê°€ 2025ë…� 6ì›� 18ì¼ì— ìžë™ìœ¼ë¡œ 66,941ê°œì˜ ë°°ë‹¹ê¸� 등가권리ë¥� ì·¨ë“했다ê³� Form 4ë¥� 통해 공시했습니다. ì� ê¶Œë¦¬ë“¤ì€ ì´ì „ì—� ë¶€ì—¬ëœ ì œí•œ ì£¼ì‹ ë‹¨ìœ„(RSU)와 관련ë˜ë©�, 기초 RSUê°€ 성숙í•� 때마ë‹� 권리ë‹� WDC 보통ì£� 1ì£�(ë˜ëŠ” 현금 등가ë¬�)ë¡� 전환ë©ë‹ˆë‹�. 해당 ì·¨ë“ì€ ê±°ëž˜ 코드 “Aâ€ë¡œ ê°€ê²� $0.00ì—� ë³´ê³ ë˜ì–´ ë‚´ë¶€ìžê°€ 현금 ì§€ì¶œì„ í•˜ì§€ 않았ìŒì„ 나타냅니ë‹�. 거래 í›� Zamiskaì� ì� íŒŒìƒ í´ëž˜ìŠ¤ì— ëŒ€í•� 실질 ì†Œìœ ê¶Œì€ 66,941 단위입니ë‹�. 보통ì£� 매ê°ì´ë‚˜ 기타 ì²˜ë¶„ì€ ë³´ê³ ë˜ì§€ 않았으며, 추가 ì£¼ì‹ ê±°ëž˜ë� í¬í•¨ë˜ì–´ 있지 않습니다.

Le 23 juin 2025, Western Digital Corp. (WDC) a déposé un formulaire 4 révélant que son SVP et Principal Accounting Officer, Gene M. Zamiska, a automatiquement acquis 66 941 droits équivalents dividendes le 18 juin 2025. Ces droits concernent des unités d’actions restreintes (RSU) précédemment attribuées et comportent un taux de conversion d’une action ordinaire WDC (ou équivalent en espèces) par droit lors de la levée des RSU sous-jacentes. L’acquisition a été signalée sous le code de transaction « A » à un prix de 0,00 $, indiquant qu’aucune dépense en espèces n’a été engagée par l’initié. Après la transaction, la propriété bénéficiaire de Zamiska dans cette catégorie dérivée s’élève à 66 941 unités. Aucune vente d’actions ordinaires ni autre disposition n’a été rapportée, et le dépôt ne contient pas d’autres transactions sur actions.

Am 23. Juni 2025 reichte Western Digital Corp. (WDC) ein Formular 4 ein, in dem offengelegt wurde, dass sein SVP & Principal Accounting Officer, Gene M. Zamiska, am 18. Juni 2025 automatisch 66.941 Dividendenäquivalenzrechte erworben hat. Diese Rechte beziehen sich auf zuvor gewährte Restricted Stock Units (RSUs) und haben eine Umtauschrate von einer WDC-Stammaktie (oder Bargleichwert) pro Recht, sobald die zugrunde liegenden RSUs fällig werden. Der Erwerb wurde unter dem Transaktionscode „A� zu einem Preis von 0,00 $ gemeldet, was darauf hinweist, dass kein Baraufwand durch den Insider erfolgte. Nach der Transaktion hält Zamiska einen wirtschaftlichen Eigentumsanteil von 66.941 Einheiten an dieser Derivatklasse. Verkäufe von Stammaktien oder andere Veräußerungen wurden nicht gemeldet, und die Meldung enthält keine weiteren Eigenkapitaltransaktionen.

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*
Zamiska Gene M.

(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)
SVP & Princ. Acctg Officer
3. Date of Earliest Transaction (Month/Day/Year)
06/18/2025
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
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
Dividend Equivalent Rights (1) 06/18/2025 A 66.941 (1) (1) Common Stock 66.941 $0.0 66.941 D
Explanation of Responses:
1. The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.
By: /s/ Sandra Garcia Attorney-in-Fact For: Gene Zamiska 06/23/2025
** 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.
Western Digital

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