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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


Date of Report (Date of earliest event reported): April 28, 2026

Ultra Clean Holdings, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware

000-50646

61-1430858

(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

26462 Corporate Avenue

Hayward, California

94545

(Address of Principal Executive Offices)

(Zip Code)


Registrant’s Telephone Number, Including Area Code: 510 576-4400


N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading
Symbol(s)

Name of each exchange on which registered

Common Stock, $0.001 par value

UCTT

The Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 28, 2026, Ultra Clean Holdings, Inc. (the “Company”) announced that Sheri Savage, the Company’s Chief Financial Officer, notified the Company of her intention to retire from the Company. Ms. Savage will continue to serve as Chief Financial Officer until a successor has been identified and appointed by the Company’s Board of Directors in order to facilitate an orderly transition of her duties and responsibilities. The Company has commenced a search for her successor.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits


Exhibit						Exhibit Description
99.1						Press Release dated April 28, 2026
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


			ULTRA CLEAN HOLDINGS, INC.

Date:	April 28, 2026	By:	/s/ Paul Y. Cho
			Name: Paul Y. Cho Title: General Counsel and Corporate Secretary

EX-99.1 2 cforetirement.htm EX-99.1 Document

Exhibit 99.1


Press Release			Source: Ultra Clean Holdings, Inc.

Ultra Clean Announces Retirement of the Chief Financial Officer Sheri Savage

HAYWARD, Calif., Tuesday April 28, 2026 / PRNewswire / Ultra Clean Holdings, Inc. (Nasdaq: UCTT), today announced that Sheri Savage, CFO, will be retiring from the company.

“On behalf of the Board and the entire UCT team, I want to extend my deepest gratitude to Sheri for her remarkable 17 years of leadership and service” said James Xiao, CEO. “Throughout her tenure, Sheri has played a pivotal role in shaping UCT’s financial strength, operational discipline, and long-term strategic direction. Her steady leadership, deep expertise, and unwavering commitment to excellence have helped guide the company through multiple industry cycles, positioning UCT for the next phase of growth. Sheri has been a trusted partner to me, the Board, and the broader global finance team, and her positive impact on this company will be lasting. We thank her sincerely for her dedication and wish her all the very best in her well-earned retirement.”

“It has been an incredible honor to be part of UCT’s journey over the past 17 years. I am deeply proud of what we have built together - strengthening our financial foundation, supporting our customers, and growing alongside a truly talented and committed global team,” said Sheri. “I am grateful for the trust and support I’ve received from my colleagues, our leadership team, and the Board throughout my tenure. UCT is well positioned for the future, and I look forward to watching the company continue to grow and succeed in the years ahead.”

The Board has initiated a comprehensive search for Sheri’s successor, considering both internal and external candidates, and will provide an update in due course.

About Ultra Clean Holdings, Inc.

Ultra Clean Holdings, Inc. is a leading developer and supplier of critical subsystems, components, parts, and ultra-high purity cleaning and analytical services, primarily for the semiconductor industry. Under its Products division, UCT offers its customers an integrated outsourced solution for major subassemblies, improved design-to-delivery cycle times, design for manufacturability, prototyping, and high-precision manufacturing. Under its Services Division, UCT offers its customers tool chamber parts cleaning and coating, as well as micro-contamination analytical services. Ultra Clean is headquartered in Hayward, California. Additional information is available at www.uct.com.

Contact:

Rhonda Bennetto

SVP Investor Relations

rbennetto@uct.com