Ultra Clean Holdings, Inc. — 8-K Filings
213 8-K filings on record
This page lists all 8-K filings submitted to the SEC by Ultra Clean Holdings, Inc. (UCTT), sorted by most recent first. Each row links to the full filing on EdgarLookup. Ultra Clean Holdings, Inc. has filed 213 8-K documents with the SEC since 2013. To view all SEC filings by Ultra Clean Holdings, Inc., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B3
424B5
5
8-A12G
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
EFFECT
NT 10-K
NT 10-Q
POS AM
RW
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0000950103-26-003139 | Mar 3, 2026 | Feb 26, 2026 |
| 8-K | FORM 8-K | 0000950103-26-002821 | Feb 27, 2026 | Feb 26, 2026 |
| 8-K | FORM 8-K | 0000950103-26-002636 | Feb 25, 2026 | — |
| 8-K | 8-K | 0001628280-26-010607 | Feb 23, 2026 | — |
| 8-K | 8-K | 0001628280-26-003715 | Jan 28, 2026 | Jan 25, 2026 |
| 8-K | 8-K | 0001628280-25-046810 | Oct 28, 2025 | Oct 23, 2025 |
| 8-K | 8-K | 0001275014-25-000007 | Sep 16, 2025 | Sep 15, 2025 |
| 8-K | 8-K | 0001628280-25-038545 | Aug 7, 2025 | Aug 4, 2025 |
| 8-K | 8-K | 0001628280-25-036187 | Jul 28, 2025 | — |
| 8-K | 8-K | 0001628280-25-033496 | Jun 30, 2025 | — |
| 8-K | 8-K | 0001628280-25-027946 | May 27, 2025 | May 21, 2025 |
| 8-K | 8-K | 0001628280-25-020279 | Apr 28, 2025 | — |
| 8-K | 8-K | 0001628280-25-010414 | Mar 5, 2025 | — |
| 8-K | 8-K | 0001628280-25-007372 | Feb 24, 2025 | — |
| 8-K | 8-K | 0001628280-25-003224 | Jan 31, 2025 | Jan 30, 2025 |
| 8-K | 8-K | 0001628280-24-043944 | Oct 28, 2024 | — |
| 8-K | 8-K | 0001628280-24-042674 | Oct 10, 2024 | Oct 8, 2024 |
| 8-K | 8-K | 0001628280-24-032998 | Jul 25, 2024 | — |
| 8-K | 8-K | 0001628280-24-025440 | May 28, 2024 | May 22, 2024 |
| 8-K | 8-K | 0001628280-24-023394 | May 15, 2024 | May 14, 2024 |
| 8-K | 8-K | 0001628280-24-020638 | May 6, 2024 | — |
| 8-K | FORM 8-K | 0000950103-24-005020 | Apr 9, 2024 | Apr 4, 2024 |
| 8-K | 8-K | 0001628280-24-009984 | Mar 8, 2024 | Mar 6, 2024 |
| 8-K | 8-K | 0000950170-24-017963 | Feb 21, 2024 | — |
| 8-K | 8-K | 0000950170-23-057283 | Nov 1, 2023 | Oct 30, 2023 |
| 8-K | 8-K | 0000950170-23-056750 | Oct 31, 2023 | Oct 25, 2023 |
| 8-K | 8-K | 0000950170-23-055184 | Oct 25, 2023 | — |
| 8-K | 8-K | 0000950170-23-054506 | Oct 23, 2023 | — |
| 8-K | 8-K | 0000950170-23-036082 | Aug 1, 2023 | Jul 31, 2023 |
| 8-K | 8-K | 0000950170-23-035144 | Jul 27, 2023 | — |
| 8-K | 8-K | 0000950170-23-032015 | Jul 6, 2023 | — |
| 8-K | 8-K | 0000950170-23-023110 | May 18, 2023 | May 17, 2023 |
| 8-K | 8-K | 0000950170-23-014811 | Apr 26, 2023 | — |
| 8-K | 8-K | 0000950170-23-003767 | Feb 22, 2023 | — |
| 8-K | 8-K | 0000950170-23-000455 | Jan 9, 2023 | — |
| 8-K | 8-K | 0000950170-22-020171 | Oct 26, 2022 | Oct 20, 2022 |
| 8-K | 8-K | 0000950170-22-019549 | Oct 13, 2022 | Oct 10, 2022 |
| 8-K | 8-K | 0000950170-22-017709 | Aug 24, 2022 | Aug 19, 2022 |
| 8-K | 8-K | 0000950170-22-013389 | Jul 28, 2022 | — |
| 8-K | 8-K | 0000950170-22-012197 | Jun 27, 2022 | Jun 23, 2022 |
| 8-K | 8-K | 0000950170-22-010412 | May 20, 2022 | May 19, 2022 |
| 8-K | 8-K | 0000950170-22-010282 | May 18, 2022 | May 16, 2022 |
| 8-K | FORM 8-K | 0000950103-22-007934 | May 4, 2022 | Apr 29, 2022 |
| 8-K | FORM 8-K | 0000950103-22-007126 | Apr 27, 2022 | — |
| 8-K | FORM 8-K | 0000950103-22-006873 | Apr 25, 2022 | Apr 22, 2022 |
| 8-K | 8-K | 0000950170-22-005544 | Apr 11, 2022 | — |
| 8-K | FORM 8-K | 0000950103-22-003071 | Feb 23, 2022 | — |
| 8-K | FORM 8-K | 0000950103-21-016673 | Oct 27, 2021 | — |
| 8-K | FORM 8-K | 0000950103-21-011714 | Aug 2, 2021 | — |
| 8-K | FORM 8-K | 0000950103-21-007712 | May 24, 2021 | May 20, 2021 |