X0306 4 2023-02-17 0 0001637873 ACV Auctions Inc. ACVA 0001419488 Chamoun George C/O ACV AUCTIONS INC. 640 ELLICOTT ST., SUITE 321 BUFFALO NY 14203 1 1 0 0 Chief Executive Officer Class A Common Stock 2023-02-17 4 A 0 53686 9.43 A 263989 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 by the Board of Directors for fiscal year 2022. Michelle Webb, Attorney-in-fact 2023-02-22