Form 4 for WDC Western Digital
Accepted 2026-03-19 00:00:00 ET · period of report 2026-03-17 · accession 0001266824-26-000043 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-19 | 2026-03-17 | WDC | Shihab Ahmed Mohammed | Chief Product Off | M - OptEx | $0.00 | +196 | 184.9K | +0.1% | $0 |
| D | 2026-03-19 | 2026-03-17 | WDC | Shihab Ahmed Mohammed | Chief Product Off | F - Tax | $313.81 | -20.6K | 164.3K | -11% | -$6.46M |
| D | 2026-03-19 | 2026-03-17 | WDC | Shihab Ahmed Mohammed | Chief Product Off | M - OptEx | $0.00 | -196.56 | 375.08 | -34% | $0 |
| D | 2026-03-19 | 2026-03-18 | WDC | Shihab Ahmed Mohammed | Chief Product Off | A - Grant | $0.00 | +75.76 | 450.85 | +20% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-17 | M | A | 196 | $0.00 | 184,914 | D | — | — | (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) Includes 484 shares acquired under the Issuer's Employee Stock Purchase Plan on November 30, 2025. |
| 2 | Common | Common Stock | 2026-03-17 | F | D | 20,595 | $313.81 | 164,319 | D | — | — | (F3) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
| 3 | Derivative | Dividend Equivalent Rights | 2026-03-17 | M | D | 196.56 | $0.00 | 375.08 | D | — · — to — | 196.56 Common Stock | (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. |
| 4 | Derivative | Dividend Equivalent Rights | 2026-03-18 | A | A | 75.76 | $0.00 | 450.85 | D | — · — to — | 75.76 Common Stock | (F4) 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. |