CHO PAUL YOONKU

PrivateCIK: 1791106
Location

HAYWARD, CA

CHO PAUL YOONKU (General Counsel and Secretary) reported 3 transactions at ULTRA CLEAN HOLDINGS, INC.

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

InsiderCHO PAUL YOONKUCIK 1791106
Officer· General Counsel and Secretary
Since Oct 2019
-5.50K
Net shares
Net seller
$429.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
5.50K disposed
Non-Derivative Transactions3

Common Stock

Direct
F · Tax Withholding

Shares

1.58K

Price / share

$78.15

Trade value

$123.63K

% of position

6.8%
4/30/2026
23.34K21.76K

Common Stock

Direct
F · Tax Withholding

Shares

1.47K

Price / share

$78.15

Trade value

$114.49K

% of position

6.7%
4/30/2026
21.76K20.30K

Common Stock

Direct
F · Tax Withholding

Shares

2.45K

Price / share

$78.15

Trade value

$191.78K

% of position

12.1%
4/30/2026
20.30K17.84K
Total

Net shares

5.50K

Net value

-$429.90K

Derivative Transactions0
No derivative transactions reported
CHO PAUL YOONKU — Insider Transaction (Form 4) Filed May 5, 2026 | Finecho