☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 Magnachip Semiconductor Corporation(Exact name of registrant as specified in its charter) Delaware83-0406195(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)c/o Magnachip Semiconductor, Ltd.15F, 76 Jikji-daero 436beon-gil, Heungdeok-guCheongju-si, Chungcheongbuk-do, Republic of Korea 28581(Address of principal executive offices) (Zip Code)Registrant’s telephone number, including area code: +82 (2) 6903-3000 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.☒Yes☐NoIndicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant 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).☒Yes☐No 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. MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESTABLE OF CONTENTS Page No.PART I FINANCIAL INFORMATION3Item 1.Interim Consolidated Financial Statements (Unaudited)3Magnachip Semiconductor Corporation and Subsidiaries Consolidated Balance Sheets as ofMarch 31, 2026 and December 31, 20253Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements ofOperations for the Three Months Ended March 31, 2026 and 20254Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements ofComprehensive Loss for the Three Months Ended March 31, 2026 and 20255Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements ofChanges in Stockholders’ Equity for the Three Months Ended March 31, 2026 and 20256Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements of CashFlows for the Three Months Ended March 31, 2026 and 20257Magnachip Semiconductor Corporation and Subsidiaries Notes to Consolidated FinancialStatements8Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations23Item 3.[Reserved]41Item 4.Controls and Procedures41PART II OTHER INFORMATION42Item 1.Legal Proceedings42Item1A.Risk Factors42Item 2.Unregistered Sales of Equity Securities and Use of Proceeds42Item 3.Defaults Upon Senior Securities42Item 4.Mine Safety Disclosures43Item 5.Other Information43Item 6.Exhibits44SIGNATURES45 PART I—FINANCIAL INFORMATION MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESCONSOLIDATED BALANCE SHEETS (Unaudited) MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Three Months EndedMarch 31,2026March 31,2025(In thousands of U.S. dollars, exceptshare data)Net sales$46,208$44,722Cost of sales39,01435,360Gross profit7,1949,362Operating expenses:Selling, general and administrative expenses7,6669,203Research and development expenses6,6985,437Total operating expenses14,36414,640Operating loss(7,170)(5,278)Interest income1,0631,540Interest expense(373)(423)Foreign currency loss, net(115)(405)Other income (loss), net(10)114Loss from continuing operations before income tax benefit, net(6,605)(4,452)Income tax benefit, net(1,908)(401)Loss from continuing operations(4,697)(4,051)Income (Loss) from discontinued operations, net of tax50(4,827)Net loss$(4,647)$(8,878)Basic earnings (loss) per common share—Continuing operations$(0.13)$(0.11)Discontinued operations$0.00$(0.13)Total$(0.13)$(0.24)Diluted earnings (loss) per common share—Continuing operations$(0.13)$(0.11)Discontinued operations$0.00$(0.13)Total$(0.13)$(0.24)Weighted average number of shares—Basic36,407,58136,887,841Diluted36,407,58136,887,841 MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited) MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Three Months EndedMarch 31,2026March 31,2025(In thousands of U.S. dollars)Cash flows from operating activitiesNet loss$(4,647)$(8,878)Adjustments to reconcile net loss to net cash provided by (used in) operatingactivitiesDepreciation and amortization2,8823,273Provision for severance benefits