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WDC SEC Filing News — Western Digital Corporation

Latest SEC filings for Western Digital Corporation (WDC) explained in plain English: insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). Sourced directly from SEC EDGAR.

What you’re looking at: Each item below is parsed from an actual SEC filing. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
Form 144 Proposed Insider Sale 2026-04-21

WDC Form 144 filed for proposed insider sale by CYNTHIA LOCK TREGILLIS (363 shares) ~$273.8K

CYNTHIA LOCK TREGILLIS filed a Form 144 with the SEC indicating intent to sell WDC (WESTERN DIGITAL CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: CYNTHIA LOCK TREGILLIS Shares: 363 Est. Value: $273.8K
Form 4 Tax / Compensation Filing 2026-03-24

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Tan Irving (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Tan Irving (Director, Chief Executive Officer) Shares: 1,091
Form 4 Tax / Compensation Filing 2026-03-24

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Davis Brian Scott (Chief Sales & Mrktng Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Davis Brian Scott (Chief Sales & Mrktng Officer) Shares: 968
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Tregillis Cynthia L (Chief Legal Officer & Corp Sec) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Tregillis Cynthia L (Chief Legal Officer & Corp Sec)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Tan Irving (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Tan Irving (Director, Chief Executive Officer)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

STREETER STEPHANIE A (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: STREETER STEPHANIE A (Director)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Sennesael Kris (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Sennesael Kris (Chief Financial Officer)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Oulman Roxanne (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Oulman Roxanne (Director)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

MASSENGILL MATTHEW E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: MASSENGILL MATTHEW E (Director)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

KIDDOO BRUCE E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: KIDDOO BRUCE E (Director)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Gubbi Vidyadhara K (Chief of Global Operations) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Gubbi Vidyadhara K (Chief of Global Operations)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Feller Brad (SVP & Chief Accounting Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Feller Brad (SVP & Chief Accounting Officer)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

DOLUCA TUNC (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: DOLUCA TUNC (Director)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Davis Brian Scott (Chief Sales & Mrktng Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Davis Brian Scott (Chief Sales & Mrktng Officer)
Form 4 Tax / Compensation Filing 2026-03-19

WDC insider Form 4 filed for equity award, exercise, or tax withholding

Cole Martin I (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Cole Martin I (Director)
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