Ultra Clean Holdings, Inc.

Nasdaq:UCTT

Semiconductors & Related Devices·HAYWARD, CA

CEO

Xiao Jinsong

Financials

20 shown

Type	Period	Ended	Filed
10-K	FY 2025	12/26/25	2/23/26	→
10-Q	Q3 2025	9/26/25	10/29/25	→
10-Q	Q2 2025	6/27/25	7/29/25	→
10-Q	Q1 2025	3/28/25	4/29/25	→
10-K	FY 2024	12/27/24	2/25/25	→
10-Q/A	Q3 2024	9/27/24	2/11/25	→
↓

Earnings Releases (8-K)

26 shown

Filed	Period
10/28/25	Q3 FY2025	→
7/28/25	Q2 FY2025	→
4/28/25	Q1 FY2025	→
2/24/25	Q1 FY2025	→
10/28/24	Q3 FY2024	→
7/27/23	Q2 FY2023	→
↓

News (8-K)

54 shown

Filed	Type	Description
3/3/26	Agreement	Entry into a Material Definitive Agreement	→
2/27/26	Agreement	Entry into a Material Definitive Agreement	→
2/25/26	Other	Other Events	→
2/23/26	Other	8-K Filing	→
1/28/26	Exec Change	Departure or Appointment of Directors or Certain Officers	→
9/16/25	Agreement	Entry into a Material Definitive Agreement	→
↓

Prospectuses & Registrations

16 shown

Filed	Form	Description
4/28/25	ARS	ARS	→
4/26/24	ARS	ARS	→
3/25/24	S-3ASR	FORM S-3ASR	→
3/20/24	S-8	S-8	→
4/21/23	ARS	ARS	→
4/9/21	424B5	424B5	→
↓

Filing History(1001 filings)

TypeDateAccessionPeriodSize

Mar 3, 2026

0000950103-26-003186FORM 4

Feb 27, 2026

5.4 KB

8-K

Mar 3, 2026

0000950103-26-003139FORM 8-K

Feb 26, 2026

1.3 MB

8-K

Feb 27, 2026

0000950103-26-002821FORM 8-K

Feb 26, 2026

219.7 KB

8-K

Feb 25, 2026

0000950103-26-002636FORM 8-K

Feb 25, 2026

217.5 KB

10-K

Feb 23, 2026

0001628280-26-01074410-K

Dec 26, 2025

10.7 MB

8-K

Feb 23, 2026

0001628280-26-0106078-K

Feb 23, 2026

1.0 MB

SCHEDULE 13G

Feb 17, 2026

0001172661-26-000935

—

6.7 KB

SCHEDULE 13G/A

Feb 17, 2026

0001376474-26-000179

—

7.1 KB

SCHEDULE 13G

Feb 12, 2026

0000914208-26-000028

—

12.8 KB

8-K

Jan 28, 2026

0001628280-26-0037158-K

Jan 25, 2026

573.5 KB

Dec 5, 2025

0000950103-25-015817FORM 4

Dec 3, 2025

5.1 KB

Dec 4, 2025

0000950103-25-015773FORM 4

Dec 2, 2025

5.4 KB

144

Dec 3, 2025

0001950047-25-009693

—

5.8 KB

Nov 28, 2025

0000950103-25-015486FORM 4

Nov 25, 2025

5.4 KB

10-Q

Oct 29, 2025

0001628280-25-04711710-Q

Sep 26, 2025

7.5 MB

8-K

Oct 28, 2025

0001628280-25-0468108-K

Oct 23, 2025

923.2 KB

Sep 30, 2025

0000950103-25-012608FORM 4

Sep 26, 2025

4.8 KB

Sep 16, 2025

0000950103-25-011731FORM 4

Sep 12, 2025

5.5 KB

Sep 16, 2025

0000950103-25-011730FORM 3

Sep 2, 2025

10.5 KB

8-K

Sep 16, 2025

0001275014-25-0000078-K

Sep 15, 2025

67.6 MB

Sep 3, 2025

0000950103-25-011240FORM 4

Aug 29, 2025

5.5 KB

Aug 25, 2025

0000950103-25-010679FORM 3

Aug 15, 2025

9.8 KB

SCHEDULE 13G

Aug 14, 2025

0001172661-25-003300

—

6.4 KB

8-K

Aug 7, 2025

0001628280-25-0385458-K

Aug 4, 2025

653.3 KB

10-Q

Jul 29, 2025

0001628280-25-03641310-Q

Jun 27, 2025

7.3 MB

25 filings shown

Filed	Form	Description
4/28/25	DEF 14A	DEF 14A	→
4/26/24	DEF 14A	DEF 14A	→
5/1/23	DEFA14A	DEFA14A	→
4/21/23	DEF 14A	DEF 14A	→
4/25/22	DEF 14A	DEF 14A	→
4/26/21	DEF 14A	DEF 14A	→
↓

Ultra Clean Holdings, Inc.

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Filing History(1001 filings)

Proxies

Ownership

Other Filings

Filed	Form	Description
3/3/26	4	4	→
12/5/25	4	4	→
12/4/25	4	4	→
11/28/25	4	4	→
9/30/25	4	4	→
9/16/25	4	4	→
↓

Filed	Form	Description
2/17/26	SCHEDULE 13G	SCHEDULE 13G	→
2/17/26	SCHEDULE 13G/A	SCHEDULE 13G/A	→
2/12/26	SCHEDULE 13G	SCHEDULE 13G	→
12/3/25	144	144	→
8/14/25	SCHEDULE 13G	SCHEDULE 13G	→
7/15/25	SCHEDULE 13G/A	SCHEDULE 13G/A	→
↓