FORM 10-K (Mark One)☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December28, 2025 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number:001-40345 SkyWater Technology, Inc. (Exact name of registrant as specified in its charter) (I.R.S. Employer Identification No.) 55425(Zip Code) Registrant’s telephone number, including area code:(952) 851-5200Securities registered under Section 12(b) of the Exchange Act: Securities registered under Section 12(g) of the Exchange Act: None(Title of Class) Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.☒Yes☐No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.☐Yes☒No Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to suchfiling requirements for the past 90 days.☒Yes☐No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submitsuch files).☒Yes☐No Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, oran emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerginggrowth company” in Rule 12b-2 of the Exchange Act. LargeacceleratedfilerNon-accelerated filer Accelerated filerSmallerreportingcompanyEmerging 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 anynew or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internalcontrol over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm thatprepared or issued its audit report.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included inthe filing reflect the correction of an error to previously issued financial statements.☒ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensationreceived by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☒ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).☐Yes☒No The aggregate market value of common stock of the registrant held by non-affiliates as of June29, 2025 (the last business day of the registrant’smost recently completed second fiscal quarter), based upon the closing price of the common stock reported by the Nasdaq Stock Market on such dateof $9.89, was approximately $312.5 million. On March6, 2026, there were 47,995,078 shares of the registrant's common stock outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not laterthan 120 days after the close of its fiscal year ended December28, 2025 are incorporated by reference in Part III of this Annual Report on Form 10-K. SkyWater Technology, Inc.TABLE OF CONTENTS SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTSSUMMARY OF OUR RISK FACTORSPART IITEM 1.BUSINESSITEM 1A.RISK FACTORSITEM 1B.UNRESOLVED STAFF COMMENTSITEM 1C.CYBERSECURITYITEM 2.PROPERTIESITEM 3.LEGAL PROCEEDINGSITEM 4.MINE SAFETY DISCLOSURESINFORMATION ABOUT OUR EXECUTIVE OFFICERSPART IIITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS ANDISSUER PURCHASES OF EQUITY SECURITIESITEM 6.[RESERVED]ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTSOF OPERATIONSITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATAITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSUREITEM 9A.CONTROLS AND PROCEDURESITEM 9B.OTHER INFORMATIONITEM 9C.DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONSPART IIIITEM 10.DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCEITEM 11.EXECUTIVE COMPENSAT