CHO PAUL YOONKU

PrivateCIK: 1791106
Location

HAYWARD, CA

CHO PAUL YOONKU (General Counsel and Secretary) sold 4.0% of their position (944.00 shares) of ULTRA CLEAN HOLDINGS, INC. on the open market

Open‑market sale worth $84.4K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderCHO PAUL YOONKUCIK 1791106
Officer· General Counsel and Secretary
Since Oct 2019
-944.00
Net shares
Net seller
$84.4K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
944.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

944.00

Price / share

$89.37

Trade value

$84.37K

% of position

4.0%
6/2/2026
23.89K22.94K
Total

Net shares

944.00

Net value

-$84.37K

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