Ultra Clean Holdings, Inc. — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-002552 | Mar 27, 2026 | — |
| 4 | FORM 4 | 0000950103-26-003186 | Mar 3, 2026 | Feb 27, 2026 |
| 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 | — |
| 10-K | 10-K | 0001628280-26-010744 | Feb 23, 2026 | Dec 26, 2025 |
| 8-K | 8-K | 0001628280-26-010607 | Feb 23, 2026 | — |
| SCHEDULE 13G | — | 0001172661-26-000935 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0001376474-26-000179 | Feb 17, 2026 | — |
| 8-K | 8-K | 0001628280-26-003715 | Jan 28, 2026 | Jan 25, 2026 |
| 4 | FORM 4 | 0000950103-25-015817 | Dec 5, 2025 | Dec 3, 2025 |
| 4 | FORM 4 | 0000950103-25-015773 | Dec 4, 2025 | Dec 2, 2025 |
| 144 | — | 0001950047-25-009693 | Dec 3, 2025 | — |
| 4 | FORM 4 | 0000950103-25-015486 | Nov 28, 2025 | Nov 25, 2025 |
| 10-Q | 10-Q | 0001628280-25-047117 | Oct 29, 2025 | Sep 26, 2025 |
| 8-K | 8-K | 0001628280-25-046810 | Oct 28, 2025 | Oct 23, 2025 |
| 4 | FORM 4 | 0000950103-25-012608 | Sep 30, 2025 | Sep 26, 2025 |
| 4 | FORM 4 | 0000950103-25-011731 | Sep 16, 2025 | Sep 12, 2025 |
| 3 | FORM 3 | 0000950103-25-011730 | Sep 16, 2025 | Sep 2, 2025 |
| 8-K | 8-K | 0001275014-25-000007 | Sep 16, 2025 | Sep 15, 2025 |
| 4 | FORM 4 | 0000950103-25-011240 | Sep 3, 2025 | Aug 29, 2025 |
| 3 | FORM 3 | 0000950103-25-010679 | Aug 25, 2025 | Aug 15, 2025 |
| SCHEDULE 13G | — | 0001172661-25-003300 | Aug 14, 2025 | — |
| 8-K | 8-K | 0001628280-25-038545 | Aug 7, 2025 | Aug 4, 2025 |
| 10-Q | 10-Q | 0001628280-25-036413 | Jul 29, 2025 | Jun 27, 2025 |
| 8-K | 8-K | 0001628280-25-036187 | Jul 28, 2025 | — |
| SCHEDULE 13G/A | — | 0000354204-25-001031 | Jul 15, 2025 | — |
| 4 | FORM 4 | 0000950103-25-008427 | Jul 2, 2025 | Jun 30, 2025 |
| 4 | FORM 4 | 0000950103-25-008426 | Jul 2, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0001628280-25-033496 | Jun 30, 2025 | — |
| 4 | FORM 4 | 0000950103-25-007239 | Jun 10, 2025 | Jun 6, 2025 |
| 144 | — | 0001950047-25-003996 | Jun 6, 2025 | — |
| 4 | FORM 4 | 0000950103-25-007122 | Jun 6, 2025 | Jun 4, 2025 |
| 144 | — | 0001950047-25-003794 | Jun 4, 2025 | — |
| 4 | FORM 4 | 0000950103-25-006465 | May 27, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006464 | May 27, 2025 | May 21, 2025 |
| SD | SD | 0001628280-25-027949 | May 27, 2025 | — |
| 8-K | 8-K | 0001628280-25-027946 | May 27, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006400 | May 23, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006399 | May 23, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006398 | May 23, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006397 | May 23, 2025 | May 21, 2025 |
| 4 | FORM 4 | 0000950103-25-006396 | May 23, 2025 | May 21, 2025 |
| SCHEDULE 13G/A | — | 0001376474-25-000465 | May 15, 2025 | — |
| 4 | FORM 4 | 0000950103-25-005853 | May 8, 2025 | May 6, 2025 |
| 144 | — | 0001972362-25-000395 | May 6, 2025 | — |
| 4 | FORM 4 | 0000950103-25-005718 | May 2, 2025 | Apr 30, 2025 |
| 4 | FORM 4 | 0000950103-25-005717 | May 2, 2025 | Apr 30, 2025 |
| 4 | FORM 4 | 0000950103-25-005716 | May 2, 2025 | Apr 30, 2025 |
| 4 | FORM 4 | 0000950103-25-005715 | May 2, 2025 | Apr 30, 2025 |