SEC INSIDER TRANSACTIONS

WESTERN DIGITAL CORP (WDC) Insider Transactions

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WDC · WESTERN DIGITAL CORP

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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

1sale 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
2026-08-26Filed 2026-08-27	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 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. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	7.5745D	0	Direct	Form 4 ↗0001266824-26-000182
2026-08-26Filed 2026-08-27	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 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. References: F2	F WithholdingCommon Stock · Non-derivative	1,644D	468.88	Direct	Form 4 ↗0001266824-26-000182
2026-08-26Filed 2026-08-27	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 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. References: F1	M Exercise / conversionCommon Stock · Non-derivative	7A	0	Direct	Form 4 ↗0001266824-26-000182
2026-08-25Filed 2026-08-27	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 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. F4 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	7.7788D	0	Direct	Form 4 ↗0001266824-26-000188
2026-08-25Filed 2026-08-27	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 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. F4 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	A Award / grantCommon Stock · Non-derivative	3,878A	0	Direct	Form 4 ↗0001266824-26-000188
2026-08-25Filed 2026-08-27	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 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. F4 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	771D	450.75	Direct	Form 4 ↗0001266824-26-000188
2026-08-25Filed 2026-08-27	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 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. F4 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 ↗0001266824-26-000188
2026-08-25Filed 2026-08-27	Tan IrvingDirector · Officer · Chief Executive 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 Since the date of the Reporting Person's last Form 4, the Reporting Person transferred 209,000 shares of the Issuer's common stock to the Reporting Person's personal investment company, organized under the laws of the Bahamas, of which the Reporting Person is the sole shareholder. The transfer constituted a change in form of beneficial ownership exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F4 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. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	32.0313D	0	Direct	Form 4 ↗0001266824-26-000187
2026-08-25Filed 2026-08-27	Tan IrvingDirector · Officer · Chief Executive 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 Since the date of the Reporting Person's last Form 4, the Reporting Person transferred 209,000 shares of the Issuer's common stock to the Reporting Person's personal investment company, organized under the laws of the Bahamas, of which the Reporting Person is the sole shareholder. The transfer constituted a change in form of beneficial ownership exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F4 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. References: F4	A Award / grantCommon Stock · Non-derivative	16,548A	0	Direct	Form 4 ↗0001266824-26-000187
2026-08-25Filed 2026-08-27	Tan IrvingDirector · Officer · Chief Executive 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 Since the date of the Reporting Person's last Form 4, the Reporting Person transferred 209,000 shares of the Issuer's common stock to the Reporting Person's personal investment company, organized under the laws of the Bahamas, of which the Reporting Person is the sole shareholder. The transfer constituted a change in form of beneficial ownership exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F4 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. References: F3	F WithholdingCommon Stock · Non-derivative	476D	450.75	Direct	Form 4 ↗0001266824-26-000187
2026-08-25Filed 2026-08-27	Tan IrvingDirector · Officer · Chief Executive 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 Since the date of the Reporting Person's last Form 4, the Reporting Person transferred 209,000 shares of the Issuer's common stock to the Reporting Person's personal investment company, organized under the laws of the Bahamas, of which the Reporting Person is the sole shareholder. The transfer constituted a change in form of beneficial ownership exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). F4 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. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	32A	0	Direct	Form 4 ↗0001266824-26-000187
2026-08-25Filed 2026-08-27	Shihab Ahmed MohammedOfficer · Chief Product Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 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. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F1	A Award / grantCommon Stock · Non-derivative	6,722A	0	Direct	Form 4 ↗0001266824-26-000186
2026-08-25Filed 2026-08-27	Sennesael KrisOfficer · Chief Financial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 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. F3 Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). References: F1	A Award / grantCommon Stock · Non-derivative	8,274A	0	Direct	Form 4 ↗0001266824-26-000185
2026-08-25Filed 2026-08-27	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). F3 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. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	9.1485D	0	Direct	Form 4 ↗0001266824-26-000184
2026-08-25Filed 2026-08-27	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). F3 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. References: F3	A Award / grantCommon Stock · Non-derivative	5,171A	0	Direct	Form 4 ↗0001266824-26-000184
2026-08-25Filed 2026-08-27	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). F3 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. References: F2	F WithholdingCommon Stock · Non-derivative	1,143D	450.75	Direct	Form 4 ↗0001266824-26-000184
2026-08-25Filed 2026-08-27	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). F3 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. References: F1	M Exercise / conversionCommon Stock · Non-derivative	9A	0	Direct	Form 4 ↗0001266824-26-000184
2026-08-25Filed 2026-08-27	Feller BradOfficer · SVP & Chief Accounting Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 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. F2 Includes 68 shares acquired under the Issuer's Employee Stock Purchase Plan on May 31, 2026. References: F1, F2	A Award / grantCommon Stock · Non-derivative	2,068A	0	Direct	Form 4 ↗0001266824-26-000183
2026-08-25Filed 2026-08-27	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 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. References: F1	M Exercise / conversionDividend Equivalent Rights · Derivative	7.7788D	0	Direct	Form 4 ↗0001266824-26-000182
2026-08-25Filed 2026-08-27	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 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. References: F3	A Award / grantCommon Stock · Non-derivative	3,619A	0	Direct	Form 4 ↗0001266824-26-000182
2026-08-25Filed 2026-08-27	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 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. References: F2	F WithholdingCommon Stock · Non-derivative	971D	450.75	Direct	Form 4 ↗0001266824-26-000182
2026-08-25Filed 2026-08-27	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 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. References: F1	M Exercise / conversionCommon Stock · Non-derivative	7A	0	Direct	Form 4 ↗0001266824-26-000182
2026-08-24Filed 2026-08-24	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	684D	446.17	Direct	Form 4 ↗0001266824-26-000174
2026-08-21Filed 2026-08-24	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	11.1826D	0	Direct	Form 4 ↗0001266824-26-000174
2026-08-21Filed 2026-08-24	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	1,109D	459.44	Direct	Form 4 ↗0001266824-26-000174

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