X0306 4 2022-02-03 0 0001637873 ACV Auctions Inc. ACVA 0001783261 Fitzgerald Leanne C/O ACV AUCTIONS INC. 640 ELLICOTT STREET, #321 BUFFALO NY 14203 0 1 0 0 Chief Legal Officer Class A Common Stock 2022-02-03 4 A 0 210000 0.00 A 210000 D Represents a restricted stock unit ("RSU") award. Twenty-five percent (25%) of the RSUs will vest on April 1, 2023 and the remaining RSUs will vest in twelve (12) equal quarterly installments thereafter, subject to the Reporting Person's continuous service through each such date. /s/ Trey Reilly, Attorney-in-Fact 2022-02-07