ACV Auctions (ACVA) officer details RSU tax-share withholding and holdings

Rhea-AI Filing Summary

ACV Auctions Inc. officer reports automatic share withholding for taxes. A company officer of ACV Auctions Inc. (ACVA), identified by title as CCDSO, reported three transactions on 01/02/2026 involving common stock. The issuer withheld 4,008, 5,718, and 4,748 common shares at a price of $8.29 per share to cover tax liabilities tied to previously granted time-based restricted stock units, which the filing states does not represent discretionary sales by the insider. Following these withholdings, the officer held 313,064 common shares directly.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Anderson Craig Eric

(Last) (First) (Middle)

C/O ACV AUCTIONS INC.

640 ELLICOTT ST., SUITE 321

(Street)

BUFFALO NY 14203

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACV Auctions Inc. [ ACVA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CCDSO

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/02/2026		F		4,008(1)	D	$8.29	323,530	D
Common Stock	01/02/2026		F		5,718(1)	D	$8.29	317,812	D
Common Stock	01/02/2026		F		4,748(1)	D	$8.29	313,064	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

Remarks:

	/s/ Michelle Webb, Attorney-in-Fact	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did ACV Auctions Inc. (ACVA) disclose in this filing?

The filing reports that a company officer had common shares withheld by ACV Auctions Inc. on 01/02/2026 to cover tax liabilities from vesting restricted stock units.

How many ACV Auctions (ACVA) shares were withheld for taxes in this insider transaction?

The issuer withheld 4,008, 5,718, and 4,748 common shares, each at a price of $8.29 per share, to satisfy the reporting person’s tax obligations.

Did the ACV Auctions (ACVA) officer make a discretionary sale of shares?

No. The explanation states that these shares were withheld by the issuer to cover tax liability upon vesting of time-based restricted stock units and do not represent a discretionary sale by the reporting person.

How many ACV Auctions (ACVA) shares does the insider own after the reported transactions?

After the reported tax-withholding transactions on 01/02/2026, the officer beneficially owned 313,064 shares of ACV Auctions Inc. common stock directly.

What is the relationship of the reporting person to ACV Auctions Inc. (ACVA)?

The reporting person is an officer of ACV Auctions Inc., with the title shown as CCDSO, and is filing as a single reporting person.

What type of equity award triggered the ACV Auctions (ACVA) tax withholding?

The tax withholding arose from the vesting of a previously granted time-based restricted stock unit, according to the explanation of responses.