(MARK ONE) Indicate by check mark whether the issuer (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 90days. Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to besubmitted pursuant to Rule405 of Regulation S-T (§232.405 of this chapter) during the preceding 12months (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, asmaller reporting company or an emerging growth company. See definitions of “large accelerated filer”, “accelerated filer”, “smallerreporting company”, and “emerging growth company” in Rule12b-2 of the Exchange Act. 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 Section13(a)of the ExchangeAct.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act).Yes☒No☐ As of May 13, 2026, 25,589,480 Class A ordinary shares and 375,000 Class B ordinary shares were issued andoutstanding. JAWS MUSTANG ACQUISITION CORPORATION FORM10-Q FOR THE QUARTER ENDED MARCH 31, 2026TABLE OF CONTENTS Part I. Financial Information1Item1. Condensed Interim Financial Statements1Condensed Balance Sheets as of March 31, 2026 (Unaudited) and December 31, 20251Unaudited Condensed Statements of Operations for the Three Months Ended March 31, 2026 and20252Unaudited Condensed Statements of Changes in Shareholders’ Deficit for the Three Months EndedMarch 31, 2026 and 20253Unaudited Condensed Statements of Cash Flows for the Three Months Ended March 31, 2026 and20255Notes to Unaudited Condensed Financial Statements6Item2.Management’s Discussion and Analysis of Financial Condition and Results of Operations22Item3.Quantitative and Qualitative Disclosures About Market Risk27Item4. Controls and Procedures27Part II. Other Information28Item1.Legal Proceedings28Item1A.Risk Factors28Item2.Unregistered Sales of Equity Securities and Use of Proceeds28Item3.Defaults Upon Senior Securities28Item4.Mine Safety Disclosures28Item5. Other Information28Item6. Exhibits29Part III. Signature30 PART I - FINANCIAL INFORMATION JAWS MUSTANG ACQUISITION CORPORATIONCONDENSED BALANCE SHEETS JAWS MUSTANG ACQUISITION CORPORATIONCONDENSED STATEMENTS OF OPERATIONS(UNAUDITED) JAWS MUSTANG ACQUISITION CORPORATIONCONDENSED STATEMENTS OF CHANGES IN SHAREHOLDERS’ DEFICIT(UNAUDITED) FOR THE THREE MONTHS ENDED MARCH 31, 2026 The accompanying notes are an integral part of these unaudited condensed financial statements. JAWS MUSTANG ACQUISITION CORPORATIONCONDENSED STATEMENTS OF CASH FLOWS(UNAUDITED) JAWS MUSTANG ACQUISITION CORPORATIONNOTES TO CONDENSED FINANCIAL STATEMENTSMARCH 31, 2026(UNAUDITED) NOTE1. DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Jaws Mustang Acquisition Corporation (the “Company”) is a blank check company incorporated as a CaymanIslands exempted company on October 19, 2020. The Company was incorporated for the purpose of effecting amerger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one ormore businesses or entities that the Company identifies (a “Business Combination”). The Company is not limited to a particular industry or sector for purposes of consummating a Business As of March 31, 2026, the Company had not commenced any operations. All activity through March 31, 2026relates to the Company’s formation, the initial public offering (“IPO”), which is described below, and subsequent tothe IPO, identifying a target company for a Business Combination. The Company will not generate any operatingrevenues until after the completion of a Business Combination, at the earliest. The Company generates non-operatingincome in the form of interest income from the proceeds derived from the IPO. The registration statement for the Company’s IPO was declared effective on February 1, 2021. On February 4,2021, the Company consummated the IPO of 103,500,000 units (the “Units” and, with respect to the Class A ordinaryshares included in the Units sold, the “Public Shares”), which includes the full exercise by the underwriters of theirover-allotmentoption in the amount of 13,500,000 Units,at$10.00 per Unit,generating gross proceeds of$1,035,000,000, which is described in Note3. Simultaneously with the closing of the IPO, the Company consummated the sale of 11,350,000 warrants (the“Private Placement Warrants”) at a price of $2.00 per Private Placement Warrant in a private placement to MustangSponsor LLC