X0306 4 2023-02-17 0 0001637873 ACV Auctions Inc. ACVA 0001852328 Mehta Vikas C/O ACV AUCTIONS INC. 640 ELLICOTT ST., SUITE 321 BUFFALO NY 14203 0 1 0 0 Chief Operating Officer Class A Common Stock 2023-02-17 4 A 0 30422 9.43 A 175430 D Grant of Restricted Stock Units that will vest 100% on February 23, 2023, issued pursuant to the Company's 2022 Target Bonus Program whereby targets defined by the Compensation Committee were deemed to be achieved for fiscal year 2022. Includes 1510 shares acquired pursuant to the Company's 2021 Employee Stock Purchase Plan ("ESPP") for the purchase period of 2/1/2022 to 5/31/2022 and 564 shares for the purchase period of 6/1/2022 to 11/30/2022. Michelle Webb, Attorney-in-fact 2023-02-22