超科林半导体 2026年季度报告

Form 10-Q/A__________________________________________________ Amendment No. 1 (Mark One) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 27, 2026 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from____________toCommission file number 000-50646__________________________________________________ Ultra Clean Holdings, Inc.(Exact name of registrant as specified in its charter) __________________________________________________ (510) 576-4400 Registrant’s telephone number, including area code__________________________________________________ Securities registered pursuant to Section 12(b) of the Act: The Nasdaq Stock Market, LLC Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of theSecurities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to filesuch reports), and (2) has been subject to such filing requirements for the past 90 days.YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to besubmitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorterperiod that the registrant was required to submit such files).YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer,smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,”“smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.: Large accelerated filerNon-accelerated filer Accelerated filerSmaller reporting companyEmerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transitionperiod for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YesNoNumber of shares outstanding of the issuer’s common stock as of April23, 2026: 44,828,352 EXPLANATORY NOTE Ultra Clean Holdings, Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-Q/A (this “Amendment”) to its QuarterlyReport on Form 10-Q for the fiscal quarter ended March 27, 2026, which was originally filed with the Securities and ExchangeCommission (the “SEC”) on April 29, 2026 (the “Original Filing”). This Amendment is being filed to revise Part II “Item 5. OtherInformation” by adding Rule 10b5-1 trading arrangements entered into by Sheri Savage, the Company's Chief Financial Officer, andBrian Harding, the Company’s Chief Accounting Officer, during the quarter ended March 27, 2026, which was inadvertently omittedfrom the disclosure included in the Original Filing. In addition, as required by Rule 12b-15 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), newcertifications by the Company’s principal executive officer and principal financial officer are filed herewith as exhibits to thisAmendment, under Item 6 hereof, pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. Because no financial statements havebeen included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 ofRegulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. The Company is also not including new certificationsunder Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of2002), as no financial statements are being filed with this Amendment. Other than as expressly set forth herein, this Amendment does not, and does not purport to, amend, update or restate the information inthe Original Filing or reflect any events that have occurred after the Original Filing was made. Information not affected by thisAmendment remains unchanged and reflects the disclosures made at the time as of which the Original Filing was made. No changeshave been made to the financial statements of the Company as contained in the Original Filing. Accordingly, this Amendment shouldbe read together with the Original Filing and the Company’s other filings with the SEC. ITEM 5. Other Information Insider Trading Arrangements On March 5, 2026, Sheri Savage, the Company's Chief Financial Officer, and Brian Harding, the Company’s Chief AccountingOfficer, each entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the ExchangeAct. Ms. Savage's plan provides for the sale from time to time of up to 74,392 shares of the Company's common stock, subject tocertain minimum price threshol