X0609 4 2026-05-27 0001637873 ACV Auctions Inc. ACVA 0001252022 GOODMAN ROBERT P false C/O ACV AUCTIONS INC. 640 ELLICOTT STREET, #321 BUFFALO NY 14203 true false false false false Common Stock 2026-05-27 4 A false 27500 0 A 421826 D Common Stock 912408 I See footnote Common Stock 7392 I See footnote Common Stock 13063 I See footnote The shares reported in this transaction represent Refresher Grant Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs will vest on the first anniversary of the Refresher Grant Date, provided that, the RSUs shall become fully vested as of the day immediately preceding the next Annual Meeting, if sooner. Vesting of the RSUs is subject in all cases to the Eligible Director's Continuous Service (as defined in the Plan) through each such applicable vesting date. Includes 19,107 shares received by the Reporting Person related to equity grants issued by the Company. The Reporting Person has agreed to assign to Deer Management Co. LLC ("DMC") the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof. The shares reported are held by Cracktuxet II, LLC ("Cracktuxet"). Cracktuxet is controlled by the Reporting Person, and the Reporting Person disclaims beneficial ownership of the shares held by this entity, except to the extent of his pecuniary interest therein, if any. The shares reported are held by NB Group, LLC ("NB Group"). NB Group is controlled by the Reporting Person, and the Reporting Person disclaims beneficial ownership of the shares held by this entity, except to the extent of his pecuniary interest therein, if any. The shares reported are held by Katama Point LLC ("Katama"). Katama is controlled by the Reporting Person, and the Reporting Person disclaims beneficial ownership of the shares held by this entity, except to the extent of his pecuniary interest therein, if any. /s/ Robert P. Goodman 2026-05-29