Form 4 for WDC Western Digital
Accepted 2026-03-05 00:00:00 ET · period of report 2026-03-03 · accession 0001266824-26-000039 · 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 | 2026-03-05 | 2026-03-03 | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | +23 | 133.8K | +0.0% | $0 |
| DM | 2026-03-05 | 2026-03-04 | WDC | Tregillis Cynthia L | CLO, Corp Sec | S - Sale+OE | $268.28 | -9,324 | 130.2K | -7% | -$2.50M |
| D | 2026-03-05 | 2026-03-03 | WDC | Tregillis Cynthia L | CLO, Corp Sec | F - Tax | $250.61 | -2,798 | 131.0K | -2% | -$701.2K |
| D | 2026-03-05 | 2026-03-03 | WDC | Tregillis Cynthia L | CLO, Corp Sec | M - OptEx | $0.00 | -23.81 | 304.41 | -7% | $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 | 2026-03-03 | M | A | 23 | $0.00 | 133,804 | 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 | 2026-03-04 | S | D | 8,547 | $269.22 | 121,682 | D | — | — | (F4) Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $269.17 to a high of $269.2201. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. |
| 3 | Common | Common Stock | 2026-03-04 | S | D | 777 | $257.91 | 130,229 | D | — | — | |
| 4 | Common | Common Stock | 2026-03-03 | F | D | 2,798 | $250.61 | 131,006 | D | — | — | (F2) Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
| 5 | Derivative | Dividend Equivalent Rights | 2026-03-03 | M | D | 23.81 | $0.00 | 304.41 | D | — · — to — | 23.81 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. |