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Ultra Clean Holdings, Inc.

For the period ended Dec 26, 2025. Filed Feb 23, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 23, 2026

UCTT$46.71+1.8%Stored close · as of Nov 10, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 15. Exhibits and Financial Statement Schedules

(a)The following documents are filed as part of this Form 10-K:

  1. Financial Statements:
Reports of Independent Registered Public Accounting Firms (PCAOB ID: 238 and PCAOB ID: 23)43
Consolidated Balance Sheets47
Consolidated Statements of Operations48
Consolidated Statements of Comprehensive Income (Loss)49
Consolidated Statements of Cash Flows50
Consolidated Statements of Stockholders’ Equity52
Notes to Consolidated Financial Statements55
  1. Financial statement schedules not listed have been omitted because they are not applicable or required, or the information required to be set forth therein is included in the Consolidated Financial Statements or Notes thereto.

  2. Exhibits

Exhibit Index

ExhibitNumber · Description · Form · File No. · Filing Date · Exhibit · FiledHerewith
2.1Agreement and Plan of Merger, dated as of July 24, 2018, among Quantum Global Technologies, LLC, Ultra Clean Holdings, Inc., Falcon Merger Subsidiary, LLC and G-Squared Partners, LLC (as the representative of the unitholders of the Company)8-K000-50646July 25, 20182.1
2.2Agreement and Plan of Merger by and among Ultra Clean Holdings, Inc., Sir Daibus Ltd., Bealish Ltd. and Ham-Let (Israel – Canada) Ltd.8-K000-50646December 17, 20202.1
3.1Amended and Restated Certificate of Incorporation of Ultra Clean Holdings, Inc.S-1/A333-11904March 2, 20043.1
3.2Amended and Restated Bylaws of Ultra Clean Holdings, Inc.10-Q000-50646May 2, 20163.1
4.1Specimen Stock CertificateS-1/A333-11904March 8, 20044.1
4.2Description of Securities Registered Under Section 12 of the Exchange Act10-K000-50646March 6, 20244.2
10.1†Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan (amended and restated as of May 17, 2023)10-K000-50646March 6, 202410.1
10.2†Form of Stock Option AgreementS-1/A333-11904March 8, 200410.6
10.3†Form of Award AgreementS-1/A333-11904March 8, 200410.13
10.4†Form of Restricted Stock Unit Award Agreement10-K000-50646March 12, 200810.18
10.5†Employee Stock Purchase Plan (amended and restated as of May 17, 2023)10-K000-50646March 6, 202410.5
10.6†Form of Indemnification Agreement between Ultra Clean Holdings, Inc. and each of its directors and executive officersS-1/A333-11904March 2, 200410.10
10.7†Promotion Letter between Ultra Clean Holdings, Inc. and Sheri Savage (previously Sheri Brumm) dated February 18, 201610-K000-50646March 9, 201610.18
10.8†Offer Letter between Ultra Clean Holdings, Inc. and Sheri Savage (previously Sheri Brumm) dated July 7, 20168-K000-50646July 12, 201699.1
ExhibitNumber · Description · Form · File No. · Filing Date · Exhibit · FiledHerewith
10.9†Change in Control Severance Agreement between Ultra Clean Holdings, Inc. and Sheri Savage (previously Sheri Brumm) dated July 7, 20168-K000-50646July 12, 201699.2
10.10†Form of Change in Control Severance Agreement for Executive Officers8-K000-50646November 1, 201810.2
10.11†Offer Letter between the Company and James Xiao8-K000-50646August 7, 202510.1
10.12†Promotion Letter between the Company and Christopher S. Cook8-K000-50646August 7, 202510.2
10.13†Severance Benefits for Executive Officers, dated as of August 1, 202510-Q000-50646October 29, 202510.1
10.14†Chief Executive Officer Change in Control Severance Plan, dated as of September 2, 202510-Q000-50646October 29, 202510.2
10.15†Chief Business Officer Change in Control Severance Plan, dated as of August 24, 202510-Q000-50646October 29, 202510.3
10.16Credit Agreement, dated as of August 27, 2018, among Ultra Clean Holdings, Inc., Barclays Bank PLC, as administrative agent, and the lenders party thereto8-K000-50646August 31, 201810.1
10.17Guarantee and Collateral Agreement in favor of Barclays Bank PLC and the other Lenders party thereto, dated as of August 27, 2018, made by Ultra Clean Holdings, Inc. and the other Grantors referred to therein and from time to time party thereto8-K000-50646August 31, 201810.2
10.18Amendment Agreement, dated as of October 1, 2018, among Ultra Clean Holdings, Inc., any Subsidiary Borrowers, Barclays Bank PLC, as administrative agent, and the lenders party thereto8-K000-50646October 4, 201810.1
10.19Second Amendment, dated as of March 31, 2021, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646April 5, 202110.1
ExhibitNumberDescriptionFormFile No.Filing DateExhibitFiledHerewith
10.20Third Amendment, dated as of August 19, 2022, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646August 20, 202210.1
10.21Fourth Amendment, dated as of June 29, 2023, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646July 6, 202310.1
10.22Fifth Amendment, dated as of July 27, 2023, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646August 1, 202310.1
10.23Sixth Amendment, dated as of April 4, 2024, by and among Ultra Clean Holdings, Inc., Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646April 9, 202410.1
10.24Seventh Amendment, dated as of October 8, 2024, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto8-K000-50646October 10, 202410.1
10.25Eighth Amendment, dated as of September 15, 2025, by and among Ultra Clean Holdings, Inc., the subsidiaries of Ultra Clean Holdings, Inc. party thereto, Barclays Bank PLC, as administrative agent and the lenders party thereto.8-K000-50646September 16, 202510.1
19.1Ultra Clean Holdings, Inc. Insider Trading Policy10-K000-50646February 25, 202519.1
21.1Subsidiaries of Ultra Clean Holdings, Inc.X
23.1Consent of Pricewaterhouse Coopers LLP, Independent Registered Public Accounting FirmX
23.2Consent of Baker Tilly US LLPX
ExhibitNumber · Description · Form · File No. · Filing Date · Exhibit · FiledHerewith
24.1 · Power of Attorney (included on signature page) · X
31.1 · Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 · X
31.2 · Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 · X
32.1 · Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 · X
32.2 · Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 · X
97.1Compensation Recoupment Policy10-K000-50646March 6, 202497.1
101.INSInline XBRL Instance Document – the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document.
101.SCHInline XBRL Taxonomy Extension Schema Document
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document
101.LABInline XBRL Taxonomy Extension Label Linkbase Document
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File (embedded within the Inline XBRL document)

†Denotes management contract or compensatory plan.

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