Andrew Peer - Oct 1, 2025 Form 4 Insider Report for ACV Auctions Inc. (ACVA)

Role: VP, Corporate Controller & CAO
Signature: /s/ Michelle Webb, Attorney-in-Fact
Stock symbol: ACVA
Transactions as of: Oct 1, 2025
Transactions value $: -$22,778
Form type: 4
Date filed: 10/3/2025, 04:11 PM
Previous filing: Sep 16, 2025
Next filing: Oct 16, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Peer Andrew	VP, Corporate Controller & CAO	C/O ACV AUCTIONS INC., 640 ELLICOTT ST., SUITE 321, BUFFALO	/s/ Michelle Webb, Attorney-in-Fact	2025-10-03	0002030941

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACVA	Common Stock	Tax liability	-$9.65K	-958	-1.69%	$10.07	55.8K	Oct 1, 2025	Direct	F1
transaction	ACVA	Common Stock	Tax liability	-$6.79K	-674	-1.21%	$10.07	55.1K	Oct 1, 2025	Direct	F1
transaction	ACVA	Common Stock	Tax liability	-$6.34K	-630	-1.14%	$10.07	54.5K	Oct 1, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person.