FORM 10-Q (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, 2026 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from __________ to __________Commission File Number: 001-40256 ACV Auctions Inc. (Exact Name of Registrant as Specified in its Charter) (I.R.S. EmployerIdentification No.) Registrant’s telephone number, including area code: 800 553-4070_________________________________________________________ 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 been subjectto 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 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 required tosubmit such files). YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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 filerNon-accelerated filerEmerging 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). YesNoAs of April30, 2026, there were 174,584,894 shares of the registrant's common stock with a par value of $0.001, outstanding. Table of Contents PagePART I.FINANCIAL INFORMATIONItem 1.Financial Statements (Unaudited)Condensed Consolidated Statements of Operations3Condensed Consolidated Statements of Comprehensive Loss4Condensed Consolidated Balance Sheets5Condensed Consolidated Statements of Changes in Stockholders’ Equity6Condensed Consolidated Statements of Cash Flows7Notes to Unaudited Condensed Consolidated Financial Statements8Note 1 - Nature of Business and Summary of Significant Accounting Policies8Note 2 - Fair Value Measurement9Note 3 - Accounts Receivable & Allowance for Doubtful Receivables10Note 4- Guarantees, Commitments and Contingencies11Note 5- Borrowing11Note 6 - Revenue12Note 7- Stock-based Compensation12Note 8 - Income Taxes13Note 9 - Net Loss Per Share13Note 10- Segment Information13Note 11 - Subsequent Event14Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations15Item 3.Quantitative and Qualitative Disclosures About Market Risk29Item 4.Controls and Procedures29PART II.OTHER INFORMATION31Item 1.Legal Proceedings31Item 1A.Risk Factors31Item 2.Unregistered Sales of Equity Securities and Use of Proceeds31Item 3.Defaults Upon Senior Securities31Item 4.Mine Safety Disclosures31Item 5.Other Information31Item 6.Exhibits33Signatures35 SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the SecuritiesAct of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or theExchange Act, about us and our industry that involve substantial risks and uncertainties. All statements other than statements ofhistorical facts contained in this Quarterly Report on Form 10-Q including statements regarding our future results of operations orfinancial condition, business strategy and plans and objectives of management for future operations, are forward-looking statements.Insome cases,you can identify forward-looking statements because they contain words such as“anticipate,”“believe,”“contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,”“target,” “will” or “would” or the negative of these words or other similar terms or expressions. These forward-looking statementsinclude, but are not limited to, statements concerning the following: •our expectations regarding our revenue, operating expenses and other operating results, including our key metrics andour ability to meet previously announced earnings guidance;•our ability to effectively manage our growth and expand our business;•our ability to grow the number of participants on our marketplace platform;•our ability to acquire new customers and successfully retain existing customers and capture a greater s