Ultra Clean Holdings, Inc.
UCTTNasdaqCIK 1275014TechnologyFiscal year ends Dec 30
Reports and events: 282 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-09-3016:14 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001628280-26-063977 |
| 2026-08-1408:54 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950103-26-012379 |
| 2026-08-0616:26 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-26-054369 |
| 2026-08-0416:06 ET | 10-Q | Quarterly reportPeriod 2026-06-26 | 0001628280-26-052540 |
| 2026-08-0316:14 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-051853 |
| 2026-07-0816:09 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-26-047655 |
| 2026-05-2617:05 ET | 8-K | 5.07 Shareholder vote results | 0001628280-26-038205 |
| 2026-05-0116:58 ET | 10-Q/A | Quarterly report, amendedPeriod 2026-03-27 | 0001628280-26-029413 |
| 2026-04-2916:06 ET | 10-Q | Quarterly reportPeriod 2026-03-27 | 0001628280-26-028365 |
| 2026-04-2817:28 ET | 8-K | 9.01 Financial statements and exhibits | 0001628280-26-028020 |
| 2026-04-2816:21 ET | 8-K | 9.01 Financial statements and exhibits | 0001628280-26-027952 |
| 2026-04-2706:05 ET | DEF 14A | Proxy statementPeriod 2026-05-22 | 0001140361-26-016813 |
| 2026-04-2416:10 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950103-26-006157 |
| 2026-03-0316:20 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0000950103-26-003139 |
| 2026-02-2706:06 ET | 8-K | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950103-26-002821 |
| 2026-02-2516:30 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000950103-26-002636 |
| 2026-02-2317:26 ET | 10-K | Annual reportPeriod 2025-12-26 | 0001628280-26-010744 |
| 2026-02-2316:09 ET | 8-K | 9.01 Financial statements and exhibits | 0001628280-26-010607 |
| 2026-01-2807:36 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001628280-26-003715 |
| 2025-10-2916:12 ET | 10-Q | Quarterly reportPeriod 2025-09-26 | 0001628280-25-047117 |
| 2025-10-2816:43 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-046810 |
| 2025-09-1616:08 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001275014-25-000007 |
| 2025-08-0706:13 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-25-038545 |
| 2025-07-2916:05 ET | 10-Q | Quarterly reportPeriod 2025-06-27 | 0001628280-25-036413 |
| 2025-07-2816:10 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-036187 |
| 2025-06-3016:09 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001628280-25-033496 |
| 2025-05-2716:31 ET | 8-K | 5.07 Shareholder vote results | 0001628280-25-027946 |
| 2025-04-2916:06 ET | 10-Q | Quarterly reportPeriod 2025-03-28 | 0001628280-25-020658 |
| 2025-04-2816:18 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-020279 |
| 2025-04-2816:05 ET | DEF 14A | Proxy statementPeriod 2025-05-21 | 0001140361-25-016015 |
| 2025-03-0516:08 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-25-010414 |
| 2025-02-2517:28 ET | 10-K | Annual reportPeriod 2024-12-27 | 0001628280-25-007865 |
| 2025-02-2416:16 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-007372 |
| 2025-02-1119:22 ET | 10-Q/A | Quarterly report, amendedPeriod 2024-09-27 | 0001628280-25-004714 |
| 2025-02-1118:55 ET | 10-Q/A | Quarterly report, amendedPeriod 2024-03-29 | 0001628280-25-004711 |
| 2025-01-3118:25 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001628280-25-003224 |
| 2024-10-3018:04 ET | 10-Q | Quarterly reportPeriod 2024-09-27 | 0001628280-24-044152 |
| 2024-10-2816:13 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-043944 |
| 2024-10-1017:07 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001628280-24-042674 |
| 2024-07-2616:12 ET | 10-Q | Quarterly reportPeriod 2024-06-28 | 0001628280-24-033152 |
| 2024-07-2516:26 ET | 8-K | 9.01 Financial statements and exhibits | 0001628280-24-032998 |
| 2024-05-2816:45 ET | 8-K | 5.07 Shareholder vote results | 0001628280-24-025440 |
| 2024-05-1508:42 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001628280-24-023394 |
| 2024-05-0616:36 ET | 10-Q | Quarterly reportPeriod 2024-03-29 | 0001628280-24-020679 |
| 2024-05-0616:17 ET | 8-K | 9.01 Financial statements and exhibits | 0001628280-24-020638 |
| 2024-04-2617:22 ET | DEF 14A | Proxy statementPeriod 2024-05-22 | 0001140361-24-022572 |
| 2024-04-0920:56 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950103-24-005020 |
| 2024-03-0816:20 ET | 8-K | 4.01 Change of auditor | 0001628280-24-009984 |
| 2024-03-0616:33 ET | 10-K | Annual reportPeriod 2023-12-29 | 0000950170-24-027213 |
| 2024-02-2116:26 ET | 8-K | 9.01 Financial statements and exhibits | 0000950170-24-017963 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 16:08 ET. Listed shows no prices and gives no investment advice.