Senior insider sale
Chief Legal Officer & Corp Sec at WESTERN DIGITAL CORP — senior position signals high conviction
$4.66M
17.12K shares
What this filing means
TREGILLIS CYNTHIA L plans to sell 17.12K shares of WESTERN DIGITAL CORP valued at approximately $4.66M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 4/21/2026ACC: 0001950047-26-003664
Officer· Chief Legal Officer & Corp Sec
Since Mar 2026
17.12K
Shares to sell
$4.66M
Approx. market value
363.00
Acquired (3 months)
1
Planned
5 completed
Securities Acquired — Last 3 Months1
Restricted Stock
Not Applicable
4/20/2026
363.00Total acquired363.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
4/20/2026 | Restricted Stock Not Applicable | 363.00 | — |
| Total | 363.00 | ||
Planned & Completed Dispositions6
Completed
—Completed
Units to sell
9.32K
Market value
$2.50M
3/4/2026
—Completed
Units to sell
214.00
Market value
$61.2K
2/26/2026
—Completed
Units to sell
308.00
Market value
$86.8K
2/24/2026
—Completed
Units to sell
130.00
Market value
$36.9K
2/23/2026
—Completed
Units to sell
6.78K
Market value
$1.83M
2/6/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
363.00
Market value
$136.9K
4/21/2026
Total
Units
17.12K
Value
$4.66M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
3/4/2026 | 9.32K | $2.50M | — | Completed |
2/26/2026 | 214.00 | $61.2K | — | Completed |
2/24/2026 | 308.00 | $86.8K | — | Completed |
2/23/2026 | 130.00 | $36.9K | — | Completed |
2/6/2026 | 6.78K | $1.83M | — | Completed |
| Planned — Approximate Date | ||||
4/21/2026 | 363.00 | $136.9K | NASDAQ | Planned |
| Total | 17.12K | $4.66M | ||