SEC INSIDER TRANSACTIONS

WESTERN DIGITAL CORP (WDC) Insider Transactions

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WDC · WESTERN DIGITAL CORP

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Roles: director,officer,ten_percent_owner,otherOwner nameOfficer titleOwnership: D, I, unknownoriginal or amendedTransaction fromTransaction throughFiled fromFiled throughMinimum quantityMaximum quantityMinimum priceMaximum priceMinimum calculated valueMaximum calculated valueResults per page (1–100)

OR within codes/roles; AND between categories. Roles apply to buyers and sellers. Owner predicates match the same owner. Missing values fail numeric/date filters. Value is quantity × reported price for non-derivative rows only; derivative values are unknown. Amendments stay separate; joint owners do not duplicate rows.

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Stale snapshot · Covered: filings 2026-05-14 to 2026-11-13 · 71 filings · fetched 2026-11-13T20:57:07Z

Recent reported activity

0purchase rows on this page

2sale rows on this page

290matching filing rows

Purchases and sales count original non-derivative P and S rows. Awards, gifts, exercises, derivatives and amendments are shown separately and are not described as market purchases.

Transaction / filed	Reporting owner(s)	Code / security	Quantity	Price as filed	Ownership	Source
2026-09-17Filed 2026-09-21	Shihab Ahmed MohammedOfficer · Chief Product Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	56.5237D	0	Direct	Form 4 ↗0001266824-26-000211
2026-09-17Filed 2026-09-21	Shihab Ahmed MohammedOfficer · Chief Product Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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. References: F3	A Award / grantDividend Equivalent Rights · Derivative	42.1952A	0	Direct	Form 4 ↗0001266824-26-000211
2026-09-17Filed 2026-09-21	Shihab Ahmed MohammedOfficer · Chief Product Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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. References: F2	F WithholdingCommon Stock · Non-derivative	5,150D	423.87	Direct	Form 4 ↗0001266824-26-000211
2026-09-17Filed 2026-09-21	Shihab Ahmed MohammedOfficer · Chief Product Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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. References: F1	M Exercise / conversionCommon Stock · Non-derivative	56A	0	Direct	Form 4 ↗0001266824-26-000211
2026-09-17Filed 2026-09-21	Sennesael KrisOfficer · Chief Financial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	46.5075A	0	Direct	Form 4 ↗0001266824-26-000210
2026-09-17Filed 2026-09-21	Oulman RoxanneDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.5617A	0	Direct	Form 4 ↗0001266824-26-000209
2026-09-17Filed 2026-09-21	MASSENGILL MATTHEW EDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	10.2654A	0	Direct	Form 4 ↗0001266824-26-000208
2026-09-17Filed 2026-09-21	KIDDOO BRUCE EDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.5617A	0	Direct	Form 4 ↗0001266824-26-000207
2026-09-17Filed 2026-09-21	Gubbi Vidyadhara KOfficer · Chief of Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	21.0234A	0	Direct	Form 4 ↗0001266824-26-000206
2026-09-17Filed 2026-09-21	Feller BradOfficer · SVP, Global Accounting & Chief Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	4.2424A	0	Direct	Form 4 ↗0001266824-26-000205
2026-09-17Filed 2026-09-21	DOLUCA TUNCDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.5617A	0	Direct	Form 4 ↗0001266824-26-000204
2026-09-17Filed 2026-09-21	Davis Brian ScottOfficer · Chief Sales & Mrktng Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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. References: F3	A Award / grantDividend Equivalent Rights · Derivative	16.8107A	0	Direct	Form 4 ↗0001266824-26-000203
2026-09-17Filed 2026-09-21	Das ManuvirDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.2732A	0	Direct	Form 4 ↗0001266824-26-000202
2026-09-17Filed 2026-09-21	Cole Martin IDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.6786A	0	Direct	Form 4 ↗0001266824-26-000201
2026-09-17Filed 2026-09-21	Alexy KimberlyDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. 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. References: F1	A Award / grantDividend Equivalent Rights · Derivative	0.5617A	0	Direct	Form 4 ↗0001266824-26-000200
2026-09-04Filed 2026-09-08	Tregillis Cynthia LOfficer · Chief Legal Officer & Corp Sec Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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, 2026. References: F3	S Sale (market/private)Common Stock · Non-derivative	432D	451.2	Direct	Form 4 ↗0001266824-26-000199
2026-09-04Filed 2026-09-08	Gubbi Vidyadhara KOfficer · Chief of Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References:	S Sale (market/private)Common Stock · Non-derivative	1,795D	459.8732	Direct	Form 4 ↗0001266824-26-000198
2026-09-03Filed 2026-09-08	Tregillis Cynthia LOfficer · Chief Legal Officer & Corp Sec Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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, 2026. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	7.0583D	0	Direct	Form 4 ↗0001266824-26-000199
2026-09-03Filed 2026-09-08	Tregillis Cynthia LOfficer · Chief Legal Officer & Corp Sec Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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, 2026. References: F2	F WithholdingCommon Stock · Non-derivative	700D	441.57	Direct	Form 4 ↗0001266824-26-000199
2026-09-03Filed 2026-09-08	Tregillis Cynthia LOfficer · Chief Legal Officer & Corp Sec Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F3 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, 2026. References: F1	M Exercise / conversionCommon Stock · Non-derivative	7A	0	Direct	Form 4 ↗0001266824-26-000199
2026-09-03Filed 2026-09-08	Gubbi Vidyadhara KOfficer · Chief of Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	14.1166D	0	Direct	Form 4 ↗0001266824-26-000198
2026-09-03Filed 2026-09-08	Gubbi Vidyadhara KOfficer · Chief of Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F2	F WithholdingCommon Stock · Non-derivative	1,764D	441.57	Direct	Form 4 ↗0001266824-26-000198
2026-09-03Filed 2026-09-08	Gubbi Vidyadhara KOfficer · Chief of Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F1	M Exercise / conversionCommon Stock · Non-derivative	14A	0	Direct	Form 4 ↗0001266824-26-000198
2026-09-03Filed 2026-09-08	Davis Brian ScottOfficer · Chief Sales & Mrktng Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	7.0583D	0	Direct	Form 4 ↗0001266824-26-000197
2026-09-03Filed 2026-09-08	Davis Brian ScottOfficer · Chief Sales & Mrktng Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F2	F WithholdingCommon Stock · Non-derivative	882D	441.57	Direct	Form 4 ↗0001266824-26-000197

Imported instruments only. Joint owners do not multiply transactions. Amendments are separate filing rows, not additional trades. No aggregate trade totals are implied.