TREGILLIS CYNTHIA L

PrivateCIK: 2057088
Location

SAN JOSE, CA

TREGILLIS CYNTHIA L (Chief Legal Officer & Corp Sec) sold 0.1% of their position (106.00 shares) of WESTERN DIGITAL CORP on the open market

Open‑market sale worth $48.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderTREGILLIS CYNTHIA LCIK 2057088
IssuerWESTERN DIGITAL CORPCIK 106040
Officer· Chief Legal Officer & Corp Sec
Since Mar 2026
-1.59K
Net shares
Net seller
$761.8K
Total sold
1
Open market trades
0B · 1S
7
Total transactions
13.00 acquired · 1.61K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+3.00

Price / share

Trade value

% of position

0.0%
5/20/2026
120.02K120.03K

Common Stock

Direct
F · Tax Withholding

Shares

379.00

Price / share

$459.62

Trade value

$174.20K

% of position

0.3%
5/20/2026
120.03K119.65K

Common Stock

Direct
M · Option Exercise

Shares

+10.00

Price / share

Trade value

% of position

0.0%
5/21/2026
119.65K119.66K

Common Stock

Direct
F · Tax Withholding

Shares

1.11K

Price / share

$486.46

Trade value

$539K

% of position

0.9%
5/21/2026
119.66K118.55K

Common Stock

Direct
S · Sale

Shares

106.00

Price / share

$458.87

Trade value

$48.64K

% of position

0.1%
5/21/2026
118.55K118.44K
Total

Net shares

1.58K

Net value

-$761.83K

Derivative Transactions2

Dividend Equivalent Rights

Direct
M · Option Exercise
Converts to

Common Stock

3.63 shares

Shares

3.63

Strike price

Held after

329.00

Exercisable

5/20/2026

Dividend Equivalent Rights

Direct
M · Option Exercise
Converts to

Common Stock

10.59 shares

Shares

10.59

Strike price

Held after

318.41

Exercisable

5/21/2026
TREGILLIS CYNTHIA L — Insider Transaction (Form 4) Filed May 22, 2026 | Finecho