FORM 10-Q (Mark One)☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF1934For the quarterly period ended March31, 2026 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF1934For the transition period from __________ to __________ Commission file number 001-43284 Cerebras Systems Inc. (Exact name of registrant as specified in its charter) 81-2256092(I.R.S. EmployerIdentification Number) Delaware(State or other jurisdiction ofincorporation or organization)1237 E. Arques AvenueSunnyvale, California(Address of principal executive offices) 94085(Zip Code) (650) 933-4980 Registrant’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 Securities Exchange Act of 1934during 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 filingrequirements 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 405 ofRegulationS-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period 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, a smaller reporting company or anemerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. Large accelerated filer☐Non-accelerated filer☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any newor 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☒ TABLE OF CONTENTS Note Regarding Forward-Looking StatementsPart I—Financial InformationItem 1. Financial Statements (Unaudited)Condensed Consolidated Balance SheetsCondensedConsolidated Statements of OperationsCondensed Consolidated Statements of Comprehensive LossCondensed Consolidated Statements of Redeemable Convertible Preferred Stock andStockholders’ EquityCondensed Consolidated Statements of Cash FlowsNotes to the Condensed Consolidated Financial StatementsItem 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem 3. Quantitative and Qualitative Disclosures About Market RiskItem 4. Controls and ProceduresPart II—Other InformationItem 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. ExhibitsSignatures NOTE REGARDING FORWARD-LOOKING STATEMENTS This Quarterly Report on Form 10-Q contains forward-looking statements. All statements contained in this Quarterly Report on Form10-Q other than statements of historical fact, including statements regarding our future operating results and financial position, ourbusiness strategy and plans, market growth, and our objectives for future operations, are forward-looking statements. In some cases, youcan identify forward-looking statements because they contain words such as “may,” “will,” “shall,” “should,” “expects,” “plans,”“anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential,” “goal,” “objective,”“seeks,” or “continue,” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans,or intentions. Forward-looking statements contained in this Quarterly Report on Form 10-Q include, but are not limited to, statementsabout: •our future financial performance, including our expectations regarding our revenue, cash flows, expenses, gross margins, andother results of operations;•our ability to acquire new customers and grow our customer base;•our ability to successfully retain existing customers, including OpenAI OpCo, LLC (“OpenAI”), Group 42 Holding Ltd (togetherwith its affiliates, “G42”), Mohamed bin Zayed University of Artificial Intelligence (“MBZUAI”), Amazon Web Services(“AWS”), and other significant customers, and expand sales within our existing customer base;•our expectations with respect to the performance of our offerings;•our ability to procure and finance data center capacity in geographies and on the timelines we desire on commercially reasonableterms;•our ability to successfully maintain our relationships with our third-party suppliers and manufacturers;•launching new offerings, add