Senior insider sale
Chief Legal Officer & Corp Sec at WESTERN DIGITAL CORP — senior position signals high conviction
$1.62M
3.64K shares
What this filing means
TREGILLIS CYNTHIA L plans to sell 3.64K shares of WESTERN DIGITAL CORP valued at approximately $1.62M. 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: 10/21/2026ACC: 0001950047-26-010347
Officer· Chief Legal Officer & Corp Sec
Since Mar 2026
3.64K
Shares to sell
$1.62M
Approx. market value
807.00
Acquired (3 months)
1
Planned
5 completed
Securities Acquired — Last 3 Months1
Restricted Stock
Not Applicable
10/20/2026
807.00Total acquired807.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
10/20/2026 | Restricted Stock Not Applicable | 807.00 | — |
| Total | 807.00 | ||
Planned & Completed Dispositions6
Completed
—Completed
Units to sell
432.00
Market value
$194.9K
9/4/2026
—Completed
Units to sell
1.01K
Market value
$481.7K
8/27/2026
—Completed
Units to sell
476.00
Market value
$214.6K
8/26/2026
—Completed
Units to sell
684.00
Market value
$305.2K
8/24/2026
—Completed
Units to sell
235.00
Market value
$112.2K
8/21/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
807.00
Market value
$306.7K
10/21/2026
Total
Units
3.64K
Value
$1.62M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
9/4/2026 | 432.00 | $194.9K | — | Completed |
8/27/2026 | 1.01K | $481.7K | — | Completed |
8/26/2026 | 476.00 | $214.6K | — | Completed |
8/24/2026 | 684.00 | $305.2K | — | Completed |
8/21/2026 | 235.00 | $112.2K | — | Completed |
| Planned — Approximate Date | ||||
10/21/2026 | 807.00 | $306.7K | NASDAQ | Planned |
| Total | 3.64K | $1.62M | ||