Form 4 for WDC Western Digital
Accepted 2026-04-22 19:28:06 ET · period of report 2026-04-20 · accession 0001266824-26-000079 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-04-22 19:28 | 2026-04-20 | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | +12 | 121.7K | +0.0% | $0 |
| DT | 2026-04-22 19:28 | 2026-04-20 | WDC | Tregillis Cynthia L | CLO, Corp Sec | F - Tax | $374.11 | -1,308 | 120.4K | -1% | -$489.3K |
| DT | 2026-04-22 19:28 | 2026-04-21 | WDC | Tregillis Cynthia L | CLO, Corp Sec | S - Sale+OE | $377.09 | -363 | 120.0K | -0.3% | -$136.9K |
| DT | 2026-04-22 19:28 | 2026-04-20 | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | -12.49 | 332.63 | -4% | $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 | 2026-04-20 | M | A | 12 | $0.00 | 121,694 | 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. |
| 2 | Common | Common Stock | 2026-04-20 | F | D | 1,308 | $374.11 | 120,386 | D | — | — | (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
| 3 | Common | Common Stock | 2026-04-21 | S | D | 363 | $377.09 | 120,023 | D | — | — | (F3) The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 23, 2025. |
| 4 | Derivative | Dividend Equivalent Rights | 2026-04-20 | M | D | 12.49 | $0.00 | 332.63 | D | — · — to — | 12.49 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. (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. (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. |