(Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from _____________ to ____________Commission file number 001-39736______________________ NUSCALE POWER CORPORATION (Exact name of registrant as specified in its charter)______________________ 98-1588588 (I.R.S. Employer Identification No.) 97330(Zip Code) (971) 371-1592Registrant's telephone number, including area code Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 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 such filing requirements for the past 90 days. YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that theregistrant was required to submit such files). YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smallerreporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Accelerated filerSmaller reporting companyEmerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying 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 Act). YesNo The registrant had 346,105,785 Class A common shares, $0.0001 par value, and 19,375,371 Class B common shares, $0.0001 parvalue, outstanding as of April30, 2026. Table of Contents Page Number Glossary The definitions and abbreviations set forth below apply to the indicated terms used throughout this filing. •“CFPP LLC” refers to Carbon Free Power Project, LLC, an entity wholly owned by UAMPS.•“Class A common stock” refers to shares of Class A common stock, par value $0.0001 per share, of NuScale Corp.•“Class B common stock” refers to shares of Class B common stock, par value $0.0001 per share, of NuScale Corp, which representsthe right to one vote per share and carries no economic rights.•“Combined interests” refers to the combination of shares of Class B common stock and NuScale LLC Class B units required to beexchanged for Class A common stock.•“Common stock” refers collectively to shares of Class A common stock and Class B common stock.•“DCA” refers to Design Certification Application.•“DOE” refers to the U.S. Department of Energy.•“ENTRA1” refers to ENTRA1 Energy LLC.•“Exchange Act” refers to the Securities Exchange Act of 1934, as amended.•“Fluor” refers to Fluor Enterprises, Inc., a California corporation, which is wholly owned by FluorCorporation (NYSE: FLR).•“FSER” refers to Final Safety Evaluation Report.•“GAAP” refers to Generally Accepted Accounting Principles in the United States.•“G&A” refers to general and administrative.•“IPO” refers to the initial public offering of Spring Valley, which closed on November 27, 2020.•“Legacy NuScale Equityholders” refers to the holders of NuScale LLC Class B units.•“LLM” refers to long lead material.•“Merger” refers to the merger of Merger Sub with and into NuScale LLC, with NuScale LLC as the surviving entity.•“Merger Agreement” refers to the Agreement and Plan of Merger, dated as of December 13, 2021 (as amended, modified,supplemented or waived from time to time), between Spring Valley, Merger Sub and NuScale LLC.•“Merger Sub” refers to Spring Valley Merger Sub, LLC, an Oregon limited liability company and a wholly owned subsidiary ofSpring Valley.•“Milestone Contribution” refers to milestone contributions included in the PMA•“MWe” refers to one million watts of electric power, i.e. megawatts.•“NPM” refers to NuScale Power Module™.•“NRC” refers to the U.S. Nuclear Regulatory Commission.•“NuScale” and the “Company” refers to NuScale Corp and its consolidated subsidiaries, including NuScale LLC.•“NuScale Corp” refers to NuScale Power Corporation, a Delaware corporation and the combined company following theconsummation of the Transaction.•“NuScale LLC” refers to NuScale Power, LLC, an Oregon limited liability company and subsidiary of NuScale Power Corp.•“NuScale LLC Class B units” refers to non-voting, Class B units of NuScale LLC.•“PMA” refers to the Partnership Milestones Agreement entered int