TREGILLIS CYNTHIA L

PrivateCIK: 2057088
Location

SAN JOSE, CA

Senior insider sale

Chief Legal Officer & Corp Sec at WESTERN DIGITAL CORP — senior position signals high conviction

$4.42M

16.43K shares

What this filing means

TREGILLIS CYNTHIA L plans to sell 16.43K shares of WESTERN DIGITAL CORP valued at approximately $4.42M. 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.

InsiderTREGILLIS CYNTHIA LCIK 2057088
IssuerWESTERN DIGITAL CORPCIK 106040
Officer· Chief Legal Officer & Corp Sec
Since Mar 2026
16.43K
Shares to sell
$4.42M
Approx. market value
8.55K
Acquired (3 months)
1
Planned
5 completed
Securities Acquired — Last 3 Months5
Sort

Restricted Stock

Not Applicable

3/3/2026
3.54K

Restricted Stock

Not Applicable

2/25/2026
976.00

Restricted Stock

Not Applicable

2/21/2026
1.40K

Restricted Stock

Not Applicable

2/20/2026
592.00

Restricted Stock

Not Applicable

1/20/2026
2.04K
Total acquired8.55K
Planned & Completed Dispositions6
Sort

Completed

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
Completed

Units to sell

447.00

Market value

$102.4K

1/21/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

8.55K

Market value

$2.30M

3/4/2026
Total

Units

16.43K

Value

$4.42M

TREGILLIS CYNTHIA L — Planned Insider Sale (Form 144) | Finecho