LUU MICHAEL B

PrivateCIK: 1583179
Location

SAN JOSE, CA

LUU MICHAEL B (SVP Corp Svce & Chief Risk Of) reported 2 transactions at CALIFORNIA WATER SERVICE GROUP

Review the transaction codes below to understand the nature of each event.

InsiderLUU MICHAEL BCIK 1583179
Officer· SVP Corp Svce & Chief Risk Of
Since Mar 2026
-138.00
Net shares
Net seller
$6.9K
Total sold
0
Open market trades
0B · 0S
2
Total transactions
138.00 disposed
Non-Derivative Transactions2

Common Stock

Direct
F · Tax Withholding

Shares

70.00

Price / share

$50.03

Trade value

$3.50K

% of position

0.3%
9/4/2026
23.88K23.81K

Common Stock

Direct
F · Tax Withholding

Shares

68.00

Price / share

$50.03

Trade value

$3.40K

% of position

0.3%
9/5/2026
23.81K23.74K
Total

Net shares

138.00

Net value

-$6.90K

Derivative Transactions0
No derivative transactions reported
LUU MICHAEL B — Insider Transaction (Form 4) Filed Sep 8, 2026 | Finecho