Financial reports
10-K
2023 FY
Annual report
6 Mar 24
NT 10-K
Notice of late annual filing
27 Feb 24
10-Q
2023 Q3
Quarterly report
7 Nov 23
10-Q
2023 Q3
Quarterly report
11 Aug 23
NT 10-Q
Notice of late quarterly filing
9 Aug 23
10-Q
2023 Q3
Quarterly report
5 May 23
ARS
2022 FY
Annual report to shareholders
21 Apr 23
10-K
2022 FY
Annual report
28 Feb 23
10-Q
2022 Q3
Quarterly report
9 Nov 22
10-Q
2022 Q2
Quarterly report
9 Aug 22
Current reports
8-K
Entry into a Material Definitive Agreement
8 Apr 24
8-K
Changes in Registrant's Certifying Accountant
8 Mar 24
8-K
Ultra Clean Reports Fourth Quarter and Full Year 2023 Financial Results
21 Feb 24
8-K
Departure of Directors or Certain Officers
1 Nov 23
8-K
UCT Acquires HIS Innovations Group
31 Oct 23
8-K
Ultra Clean Reports Third Quarter 2023 Financial Results
25 Oct 23
8-K
Financial Statements and Exhibits
23 Oct 23
8-K
Entry into a Material Definitive Agreement
31 Jul 23
8-K
Ultra Clean Reports Second Quarter 2023 Financial Results
27 Jul 23
8-K
Entry into a Material Definitive Agreement
6 Jul 23
Registration and prospectus
S-3ASR
Automatic shelf registration
22 Mar 24
S-8
Registration of securities for employees
20 Mar 24
424B5
Prospectus supplement for primary offering
9 Apr 21
424B5
Prospectus supplement for primary offering
5 Apr 21
S-3ASR
Automatic shelf registration
5 Apr 21
S-8
Registration of securities for employees
18 Dec 19
424B5
Prospectus supplement for primary offering
31 Jan 18
424B5
Prospectus supplement for primary offering
29 Jan 18
S-3ASR
Automatic shelf registration
5 Jan 18
S-8
Registration of securities for employees
25 Jul 17
Proxies
DEFA14A
Additional proxy soliciting materials
1 May 23
DEF 14A
Definitive proxy
21 Apr 23
DEF 14A
Definitive proxy
25 Apr 22
DEF 14A
Definitive proxy
26 Apr 21
DEFA14A
Additional proxy soliciting materials
15 May 20
DEF 14A
Definitive proxy
27 Apr 20
DEF 14A
Definitive proxy
24 Apr 19
DEF 14A
Definitive proxy
19 Apr 18
DEF 14A
Definitive proxy
21 Apr 17
DEF 14A
Definitive proxy
22 Apr 16
Other
SD
Conflict minerals disclosure
19 May 23
UPLOAD
Letter from SEC
21 Nov 22
CORRESP
Correspondence with SEC
18 Nov 22
CORRESP
Correspondence with SEC
7 Nov 22
UPLOAD
Letter from SEC
26 Oct 22
SD
Conflict minerals disclosure
27 May 22
SD
Conflict minerals disclosure
25 Jan 22
UPLOAD
Letter from SEC
31 Jul 20
CORRESP
Correspondence with SEC
29 Jul 20
UPLOAD
Letter from SEC
21 Jul 20
Ownership
4
Christopher S Cook
15 Apr 24
4
Bill Bentinck
2 Apr 24
4
Paul Yoonku Cho
2 Apr 24
4
Sheri Savage
2 Apr 24
4
James P Scholhamer
2 Apr 24
4
Jamie J. Palfrey
2 Apr 24
SC 13G
FRONTIER CAPITAL MANAGEMENT CO LLC
14 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
SC 13G/A
DIMENSIONAL FUND ADVISORS LP
9 Feb 24
4
Jeffrey L. McKibben
6 Feb 24