(Mark One)☒QUARTERLYREPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934For the quarterly period ended March 31, 2026or☐TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934For the transition period from:toCommission File Number 000-21937 CERUS CORPORATION (Exact name of registrant as specified in its charter) 68-0262011(I.R.S. EmployerIdentification No.) Delaware(State or other jurisdiction ofincorporation or organization) (925) 288-6000(Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Trading Symbol Common Stock, par value $0.001 per share 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 ExchangeAct of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has beensubject 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 be submitted pursuant toRule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was requiredto 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 smaller reportingcompany, 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 transition period for complyingwith 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☒ As of April 16, 2026, there were 200,368,974 shares of the registrant’s common stock outstanding. CERUS CORPORATION FORM 10-Q For the Quarterly Period Ended March 31, 2026TABLE OF CONTENTS PART IFINANCIAL INFORMATION Item 1.Financial Statements1Condensed Consolidated Balance Sheets – March 31, 2026 and December 31, 20251Condensed Consolidated Statements of Operations – Three months ended March 31, 2026 and 20252Condensed Consolidated Statements of Comprehensive Loss – Three months ended March 31, 2026 and 20253Condensed Consolidated Statements of Stockholders’ Equity – Three months ended March 31, 2026 and 20254Condensed Consolidated Statements of Cash Flows – Three months ended March 31, 2026 and 20255Notes to Condensed Consolidated Financial Statements6Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations22Item 3.Quantitative and Qualitative Disclosures About Market Risk34Item 4.Controls and Procedures34 PART IIOTHER INFORMATION Item 1.Legal ProceedingsItem 1A.Risk FactorsItem 2.Unregistered Sales of Equity Securities and Use of ProceedsItem 3.Defaults Upon Senior SecuritiesItem 4.Mine Safety DisclosuresItem 5.Other InformationItem 6.Exhibits 35357575757576 SIGNATURES CERUS CORPORATIONCONDENSED CONSOLIDATED BALANCE SHEETS(in thousands) CERUS CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF OPERATIONSUNAUDITED(in thousands, except per share data) CERUS CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSSUNAUDITED(in thousands) Three Months EndedMarch 31,20262025Net loss$(1,648)$(7,718)Other comprehensive income (loss)Foreign currency translation adjustment63Unrealized (losses) gains on available-for-sale investments, net of taxes(173)131Comprehensive loss(1,815)(7,584)Comprehensive loss attributable to noncontrolling interest(8)(1)Total comprehensive loss attributable to Cerus Corporation$(1,807)$(7,583) See accompanying Notes to Condensed Consolidated Financial Statements. CERUS CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITYUNAUDITED(in thousands) CERUS CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWSUNAUDITED(in thousands) CERUS CORPORATIONNOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTSUNAUDITED Note 1. Summary of Significant Accounting Policies Principles of Consolidation and Basis of Presentation The accompanying unaudited condensed consolidated financial statements include those of Cerus Corporation, its subsidiary, andits variable interest entity in which the Company is the primary beneficiary in accordance with the consolidation accountingguidance, after elimination of all intercompany accounts and transactions (together with Cerus Corporation, hereinafter “Cerus” orthe “Company”). These condensed consolidated financial statements have been prepared in acc