COOK CHRISTOPHER S

PrivateCIK: 1927266
Location

HAYWARD, CA

COOK CHRISTOPHER S (President, Products Div) sold 10.5% of their position (11.48K shares) of ULTRA CLEAN HOLDINGS, INC. on the open market

Open‑market sale worth $848.9K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderCOOK CHRISTOPHER SCIK 1927266
Officer· President, Products Div
Since Apr 2022
-11.48K
Net shares
Net seller
$848.9K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
11.48K disposed
Non-Derivative Transactions2

Common Stock

Direct
S · Sale

Shares

10.25K

Price / share

$73.89

Trade value

$757.15K

% of position

9.4%
5/4/2026
108.91K98.66K

Common Stock

Direct
S · Sale

Shares

1.23K

Price / share

$74.55

Trade value

$91.77K

% of position

1.2%
5/4/2026
98.66K97.43K
Total

Net shares

11.48K

Net value

-$848.92K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned4.10K
Total
4.10K indirect4.10K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
COOK CHRISTOPHER S — Insider Transaction (Form 4) Filed May 6, 2026 | Finecho