Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| WESTERN DIGITAL CORPWDC · Entity 1010 | SVP & Princ. Acctg Officer | September 18, 2025 | September 22, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
WESTERN DIGITAL CORP
Report date September 18, 2025 · Filed September 22, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Dividend Equivalent RightsSEC Table II · derivative / convertible security | Direct | 72.4915 |
Reported balance
After 2025-09-18 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2025-09-18 · Grant · Acquired 26.1267 · Balance 72.4915 F1: 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. |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 18, 2025 Filed Sep 22, 2025 22:26 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | GrantDividend Equivalent Rights · Derivative | 26.1267 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000210 · edgardoc.xml · derivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 72.4915 Underlying: Common Stock · 26.1267 shares Expires not disclosed F1 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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. F1 · derivative.expiration_date: 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. Read SEC document |
| August 28, 2025 Filed Aug 28, 2025 22:26 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 353 | $80.90 | $28,557.70 |
DisclosureSEC source: 0001266824-25-000180 · edgardoc.xml · nonDerivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 27,425 F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| August 27, 2025 Filed Aug 28, 2025 22:26 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionDividend Equivalent Rights · Derivative | 1.1776 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000180 · edgardoc.xml · derivative · entry 4 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 46.3648 Underlying: Common Stock · 1.1776 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.exercise_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.expiration_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 27, 2025 Filed Aug 28, 2025 22:26 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 345 | $80.67 | $27,831.15 |
DisclosureSEC source: 0001266824-25-000180 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 27,778 F2 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 27, 2025 Filed Aug 28, 2025 22:26 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionCommon Stock | 1 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000180 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,123 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 26, 2025 Filed Aug 27, 2025 21:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 814 | $79.10 | $64,387.40 |
DisclosureSEC source: 0001266824-25-000166 · edgardoc.xml · nonDerivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,122 F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| August 25, 2025 Filed Aug 27, 2025 21:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionDividend Equivalent Rights · Derivative | 2.7201 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000166 · edgardoc.xml · derivative · entry 4 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 47.5424 Underlying: Common Stock · 2.7201 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.exercise_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.expiration_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 25, 2025 Filed Aug 27, 2025 21:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 798 | $79.22 | $63,217.56 |
DisclosureSEC source: 0001266824-25-000166 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,936 F2 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 25, 2025 Filed Aug 27, 2025 21:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionCommon Stock | 2 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000166 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,734 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 22, 2025 Filed Aug 25, 2025 22:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 1,828 | $74.78 | $136,697.84 |
DisclosureSEC source: 0001266824-25-000156 · edgardoc.xml · nonDerivative · entry 4 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,732 F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 22:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionDividend Equivalent Rights · Derivative | 6.1142 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000156 · edgardoc.xml · derivative · entry 5 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50.2625 Underlying: Common Stock · 6.1142 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.exercise_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.expiration_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 22:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 3,160 | $75.68 | $239,148.80 |
DisclosureSEC source: 0001266824-25-000156 · edgardoc.xml · nonDerivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 31,560 F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 22:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 1,797 | $74.66 | $134,164.02 |
DisclosureSEC source: 0001266824-25-000156 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 34,720 F2 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 22:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionCommon Stock | 6 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000156 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 36,517 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 20, 2025 Filed Aug 21, 2025 22:34 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionDividend Equivalent Rights · Derivative | 10.5643 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000146 · edgardoc.xml · derivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56.3767 Underlying: Common Stock · 10.5643 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.exercise_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. F1 · derivative.expiration_date: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| August 20, 2025 Filed Aug 21, 2025 22:34 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 3,102 | $75.64 | $234,635.28 |
DisclosureSEC source: 0001266824-25-000146 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 36,511 F2 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 20, 2025 Filed Aug 21, 2025 22:34 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Exercise / conversionCommon Stock | 9 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000146 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,613 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 22:13 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | GrantDividend Equivalent Rights · Derivative | 66.941 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000128 · edgardoc.xml · derivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 66.941 Underlying: Common Stock · 66.941 shares Expires not disclosed F1 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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. F1 · derivative.expiration_date: 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. Read SEC document |
| June 17, 2025 Filed Jun 17, 2025 23:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 245 | $58.01 | $14,212.45 |
DisclosureSEC source: 0001266824-25-000091 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 39,604 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| June 14, 2025 Filed Jun 17, 2025 23:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 240 | $55.70 | $13,368.00 |
DisclosureSEC source: 0001266824-25-000091 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 39,849 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| June 05, 2025 Filed Jun 6, 2025 21:24 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 1,729 | $54.88 | $94,887.52 |
DisclosureSEC source: 0001266824-25-000087 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 40,089 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025. Read SEC document |
| May 27, 2025 Filed May 28, 2025 20:50 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 345 | $51.82 | $17,877.90 |
DisclosureSEC source: 0001266824-25-000085 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 41,818 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| May 25, 2025 Filed May 28, 2025 20:50 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 797 | $50.18 | $39,993.46 |
DisclosureSEC source: 0001266824-25-000085 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 42,163 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| May 20, 2025 Filed May 22, 2025 20:58 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 360 | $50.63 | $18,226.80 |
DisclosureSEC source: 0001266824-25-000075 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 42,960 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| March 12, 2025 Filed Mar 13, 2025 01:32 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 456 | $43.37 | $19,776.72 |
DisclosureSEC source: 0001266824-25-000042 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 43,320 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| March 07, 2025 Filed Mar 10, 2025 22:12 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 1,659 | $41.36 | $68,616.24 |
DisclosureSEC source: 0001266824-25-000040 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 43,776 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| March 06, 2025 Filed Mar 10, 2025 22:12 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 1,116 | $41.45 | $46,258.20 |
DisclosureSEC source: 0001266824-25-000040 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 45,435 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| February 28, 2025 Filed Mar 4, 2025 01:54 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | GrantCommon Stock | 5,327 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-25-000019 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 46,551 F1 · shares: Represents performance-based restricted stock units that have been earned by the Reporting Person as a result of the deemed satisfaction of the related performance conditions in connection with the Spin-Off (as defined below). These stock units are scheduled to vest on August 20, 2025. F2 · balance_after: Includes 12,841 additional stock units acquired by the Reporting Person in connection with the Issuer's spin-off (the "Spin-Off") of a then-wholly owned subsidiary of the Issuer on February 21, 2025. Pursuant to an Employee Matters Agreement, at the effective time of the Spin-Off, each outstanding Issuer stock unit was adjusted and converted into additional stock units based on the equity conversion ratio of 1.452526 per every Issuer stock unit. Read SEC document |
| November 29, 2024 Filed Dec 2, 2024 22:13 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 313 | $72.63 | $22,733.19 |
DisclosureSEC source: 0001266824-24-000137 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,383 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| November 27, 2024 Filed Dec 2, 2024 22:13 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 167 | $71.50 | $11,940.50 |
DisclosureSEC source: 0001266824-24-000137 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,696 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| November 26, 2024 Filed Nov 27, 2024 01:11 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 658 | $69.99 | $46,053.42 |
DisclosureSEC source: 0001266824-24-000131 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,863 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| November 25, 2024 Filed Nov 27, 2024 01:11 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 450 | $69.43 | $31,241.25 |
DisclosureSEC source: 0001266824-24-000131 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,521 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| November 21, 2024 Filed Nov 22, 2024 22:28 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 376 | $64.47 | $24,240.72 |
DisclosureSEC source: 0001266824-24-000123 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,971 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| November 20, 2024 Filed Nov 22, 2024 22:28 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 261 | $63.84 | $16,662.24 |
DisclosureSEC source: 0001266824-24-000123 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 30,347 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| October 28, 2024 Filed Oct 28, 2024 22:37 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 1,993 | $69.94 | $139,390.42 |
DisclosureSEC source: 0001266824-24-000096 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,608 Read SEC document |
| September 04, 2024 Filed Sep 5, 2024 00:08 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 2,169 | $61.96 | $134,391.24 |
DisclosureSEC source: 0001266824-24-000085 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 32,601 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| September 03, 2024 Filed Sep 5, 2024 00:08 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 1,145 | $63.06 | $72,203.70 |
DisclosureSEC source: 0001266824-24-000085 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 34,770 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 29, 2024 Filed Aug 30, 2024 21:17 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 315 | $63.32 | $19,945.80 |
DisclosureSEC source: 0001266824-24-000069 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 35,915 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| August 27, 2024 Filed Aug 27, 2024 22:48 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 1,218 | $62.85 | $76,551.30 |
DisclosureSEC source: 0001266824-24-000067 · edgardoc.xml · nonDerivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 36,230 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 27, 2024 Filed Aug 27, 2024 22:48 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 2,900 | $61.48 | $178,287.36 |
DisclosureSEC source: 0001266824-24-000067 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 37,448 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $61.22 to a high of $61.83. 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. Read SEC document |
| August 25, 2024 Filed Aug 27, 2024 22:48 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 1,532 | $64.35 | $98,584.20 |
DisclosureSEC source: 0001266824-24-000067 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 40,348 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| August 21, 2024 Filed Aug 22, 2024 20:43 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | GrantCommon Stock | 3,046 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-24-000059 · edgardoc.xml · nonDerivative · entry 4 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 41,880 F4 · shares: Represents stock units that have been earned by the Reporting Person as payment in respect of the vesting of performance-based restricted stock units. These shares are scheduled to vest on August 27, 2024. Read SEC document |
| August 21, 2024 Filed Aug 22, 2024 20:43 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | GrantCommon Stock | 9,964 | $0.00 | $0.00 |
DisclosureSEC source: 0001266824-24-000059 · edgardoc.xml · nonDerivative · entry 3 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 38,834 F3 · security: Represents the grant of restricted stock units to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. Read SEC document |
| August 21, 2024 Filed Aug 22, 2024 20:43 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 417 | $64.89 | $27,059.13 |
DisclosureSEC source: 0001266824-24-000059 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,870 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| August 20, 2024 Filed Aug 22, 2024 20:43 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 220 | $64.42 | $14,172.40 |
DisclosureSEC source: 0001266824-24-000059 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,287 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| June 17, 2024 Filed Jun 18, 2024 21:03 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 219 | $78.00 | $17,082.00 |
DisclosureSEC source: 0001266824-24-000051 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP, Global Accounting & Chief 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,507 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| June 14, 2024 Filed Jun 17, 2024 21:19 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 115 | $78.12 | $8,983.80 |
DisclosureSEC source: 0001266824-24-000049 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,726 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| May 29, 2024 Filed May 30, 2024 21:07 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 315 | $75.39 | $23,747.85 |
DisclosureSEC source: 0001266824-24-000039 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 29,841 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
| May 27, 2024 Filed May 28, 2024 20:47 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | Tax withholdingCommon Stock | 165 | $74.81 | $12,343.65 |
DisclosureSEC source: 0001266824-24-000036 · edgardoc.xml · nonDerivative · entry 1 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,156 F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). Read SEC document |
| May 21, 2024 Filed May 22, 2024 21:12 UTC | WESTERN DIGITAL CORP WDC · Entity 1010 | SaleCommon Stock | 416 | $71.88 | $29,902.08 |
DisclosureSEC source: 0001266824-24-000030 · edgardoc.xml · nonDerivative · entry 2 Zamiska Gene M. · CIK 0001456385 · SVP & Princ. Acctg Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 30,321 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2023. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.