Form 4 for WDC Western Digital
Accepted 2026-02-24 00:00:00 ET · period of report 2026-02-20 · accession 0001266824-26-000021 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-24 | 2026-02-20+ | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | +12 | 136.3K | +0.0% | $0 |
| DM | 2026-02-24 | 2026-02-23+ | WDC | Tregillis Cynthia L | CLO, Corp Sec | S - Sale+OE | $282.33 | -438 | 135.1K | -0.3% | -$123.7K |
| DM | 2026-02-24 | 2026-02-20+ | WDC | Tregillis Cynthia L | CLO, Corp Sec | F - Tax | $285.52 | -1,353 | 136.3K | -1.0% | -$386.3K |
| DM | 2026-02-24 | 2026-02-20+ | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | -12.67 | 344.23 | -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 | 2026-02-20 | M | A | 3 | $0.00 | 136,541 | 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 | 2026-02-24 | S | D | 308 | $281.70 | 134,759 | D | — | — | |
| 3 | Common | Common Stock | 2026-02-23 | S | D | 130 | $283.83 | 135,067 | D | — | — | |
| 4 | Common | Common Stock | 2026-02-21 | F | D | 1,109 | $285.52 | 135,197 | D | — | — | (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
| 5 | Common | Common Stock | 2026-02-21 | M | A | 9 | $0.00 | 136,306 | 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. |
| 6 | Common | Common Stock | 2026-02-20 | F | D | 244 | $285.52 | 136,297 | D | — | — | (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
| 7 | Derivative | Dividend Equivalent Rights | 2026-02-21 | M | D | 9.44 | $0.00 | 334.79 | D | — · — to — | 9.44 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. |
| 8 | Derivative | Dividend Equivalent Rights | 2026-02-20 | M | D | 3.23 | $0.00 | 344.23 | D | — · — to — | 3.23 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. |