COOK CHRISTOPHER S

PrivateCIK: 1927266

Location

HAYWARD, CA

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 28, 2026·May 28, 2026

2 txn

MADDOCK ERNEST E

→ULTRA CLEAN HOLDINGS, INC.

May 28, 2026·May 28, 2026

2 txn

LIGGETT EMILY M

→ULTRA CLEAN HOLDINGS, INC.

May 28, 2026·May 28, 2026

2 txn

EDMAN THOMAS T

→ULTRA CLEAN HOLDINGS, INC.

May 28, 2026·May 28, 2026

1 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 6, 2026·May 6, 2026

3 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 5, 2026·May 5, 2026

5 txn

COOK CHRISTOPHER S

144

→ULTRA CLEAN HOLDINGS, INC.

May 4, 2026·May 4, 2026

COOK CHRISTOPHER S

144

→ULTRA CLEAN HOLDINGS, INC.

May 1, 2026·May 1, 2026

XIAO JINSONG

→ULTRA CLEAN HOLDINGS, INC.

Sep 30, 2025·Sep 30, 2025

1 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

Sep 3, 2025·Sep 3, 2025

2 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 2, 2025·May 2, 2025

4 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

Apr 29, 2025·Apr 29, 2025

2 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

Mar 11, 2025·Mar 11, 2025

2 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 13, 2024·May 13, 2024

1 txn

COOK CHRISTOPHER S

144

→ULTRA CLEAN HOLDINGS, INC.

May 9, 2024·May 9, 2024

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 2, 2024·May 2, 2024

2 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

Apr 30, 2024·Apr 30, 2024

1 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

Apr 15, 2024·Apr 15, 2024

1 txn

COOK CHRISTOPHER S

144

→ULTRA CLEAN HOLDINGS, INC.

Nov 14, 2023·Nov 14, 2023

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 2, 2023·May 2, 2023

2 txn

COOK CHRISTOPHER S

→ULTRA CLEAN HOLDINGS, INC.

May 9, 2022·May 9, 2022

1 txn

WILLIAMS WILLIAM JOE

→ULTRA CLEAN HOLDINGS, INC.

May 3, 2022·May 3, 2022

5 txn

WILLIAMS WILLIAM JOE

→ULTRA CLEAN HOLDINGS, INC.

Apr 26, 2022·Apr 26, 2022

2 txn

WILLIAMS WILLIAM JOE

→ULTRA CLEAN HOLDINGS, INC.

Oct 28, 2021·Oct 28, 2021

1 txn

WILLIAMS WILLIAM JOE

→ULTRA CLEAN HOLDINGS, INC.

Aug 4, 2021·Aug 4, 2021

1 txn

Page 1 of 2 · 50 total

Filer	Form	Target	Filed	Activity
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 28, 2026 May 28, 2026	2txn
MADDOCK ERNEST ECIK · 1227050	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 28, 2026 May 28, 2026	2txn
LIGGETT EMILY MCIK · 1231898	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 28, 2026 May 28, 2026	2txn
EDMAN THOMAS TCIK · 1048858	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 28, 2026 May 28, 2026	1txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 6, 2026 May 6, 2026	3txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 5, 2026 May 5, 2026	5txn
COOK CHRISTOPHER SCIK · 1927266	144 Sale	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 4, 2026 May 4, 2026	—
COOK CHRISTOPHER SCIK · 1927266	144 Sale	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 1, 2026 May 1, 2026	—
XIAO JINSONGCIK · 2086234	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Sep 30, 2025 Sep 30, 2025	1txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Sep 3, 2025 Sep 3, 2025	2txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 2, 2025 May 2, 2025	4txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Apr 29, 2025 Apr 29, 2025	2txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Mar 11, 2025 Mar 11, 2025	2txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 13, 2024 May 13, 2024	1txn
COOK CHRISTOPHER SCIK · 1927266	144 Sale	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 9, 2024 May 9, 2024	—
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 2, 2024 May 2, 2024	2txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Apr 30, 2024 Apr 30, 2024	1txn
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Apr 15, 2024 Apr 15, 2024	1txn
COOK CHRISTOPHER SCIK · 1927266	144 Sale	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Nov 14, 2023 Nov 14, 2023	—
COOK CHRISTOPHER SCIK · 1927266	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 2, 2023 May 2, 2023	2txn
COOK CHRISTOPHER SCIK · 1927266	3 Initial	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 9, 2022 May 9, 2022	1txn
WILLIAMS WILLIAM JOECIK · 1698624	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	May 3, 2022 May 3, 2022	5txn
WILLIAMS WILLIAM JOECIK · 1698624	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Apr 26, 2022 Apr 26, 2022	2txn
WILLIAMS WILLIAM JOECIK · 1698624	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Oct 28, 2021 Oct 28, 2021	1txn
WILLIAMS WILLIAM JOECIK · 1698624	4 Trade	ULTRA CLEAN HOLDINGS, INC.CIK · 1275014	Aug 4, 2021 Aug 4, 2021	1txn

Page 1 of 2 · 50 total