Dear Fellow Stockholders,

On behalf of the Board of Directors, it is our pleasure to invite you to the Annual Meeting of Stockholders of ACV Auctions Inc. on May 29, 2024 at 4:00 p.m., Eastern Time. The Annual Meeting will be held in a virtual-only meeting format, via live webcast. Registration to attend the Annual Meeting is available at www.proxydocs.com/ACVA. The Notice of Annual Meeting of Stockholders and the Proxy Statement contain details of the business to be conducted during the Annual Meeting.

In 2023, the ACV team continued to execute on our mission to digitally transform the automotive industry, resulting in strong financial performance and continued market share gains, while delivering best-in-class services to our dealer and commercial partners. We also continued to invest in our ACV team, enabling us to expand our nationwide marketplace, and further enhance ACV’s differentiated data and technology moat. All of this was accomplished during another year of challenging market dynamics in the automotive industry.

Highlights from 2023 included:

Looking forward, we remain excited about the tremendous opportunity for ACV to address a large and complex industry that is still very early in its adoption of digital solutions. By executing on this opportunity, we expect to deliver significant shareholder value over time. Our strategy to deliver on ACV’s vision remains underpinned by three key pillars: Growth, Innovation and Scale.

We drive Growth by transforming the automotive market with the leading data-driven platform, creating the most trusted and efficient marketplace in the industry. Our Innovation engine delivers technology that extends ACV’s competitive moat and creates additional growth vectors in adjacent markets with an expanding suite of products and data services. Our proven business model delivers growth at Scale with attractive unit economics and long-term operating leverage.

ACV’s success would not be possible without the dedicated hard work and creativity of our people, the strategic relationships we’re building with our dealer and commercial partners, and the support and encouragement from our stockholders.

Our “people first” mindset drives everything we do, including how we recruit, develop and retain world class talent, and how we work together as “teammates.” Our dealer and commercial partners are more than just our customers; they collaborate with us and provide invaluable input to our platform. Our team is trained to build long-term relationships, and our approach is centered around a mantra of “calm persistence” as a means for all team members to stay focused on the long game.

Lastly, we remain true to our beliefs. We will continue to deliver on our mission to bring transparency, trust and efficiency to the markets we serve. We will continue to keep the needs of our dealer and commercial partners at the center of our decision-making. We will continue to pursue growth, which includes our investment in training, tools, technology and our product roadmap. We will continue to innovate and expand the breadth of our marketplace into adjacent markets, and expand our data-driven offerings, both organically and through targeted acquisitions. We will continue to invest in our people and culture.

Thank you for joining us on our journey.

GEORGE CHAMOUN Chief Executive Officer

April 17, 2024

Dear Stockholder:

You are cordially invited to attend the Annual Meeting of Stockholders (the “Annual Meeting”) of ACV Auctions Inc. (the “Company”) on Wednesday, May 29, 2024 at 4:00 p.m., Eastern Time. The Annual Meeting will be held in a virtual-only meeting format, via live webcast available at www.proxydocs.com/ACVA.

The Annual Meeting will be held for the following purposes:

These items of business are more fully described in the Proxy Statement accompanying this Notice.

We encourage you to attend the Annual Meeting online. The live webcast will provide you with the ability to participate in the Annual Meeting, vote your shares, and ask questions. In order to do so, you must register prior to the start of the meeting at www.proxydocs.com/ACVA. Upon completing your registration, you will receive further instructions via email, including your unique links that will allow you access to the Annual Meeting and will permit you to submit questions.

The record date for the Annual Meeting is April 3, 2024. Please note that only stockholders of record at the close of business on that date are entitled to receive notice of, and to vote at, the Annual Meeting.

Please refer to the “Voting Information” section of the accompanying proxy statement for additional details.

By Order of the Board of Directors

LEANNE FITZGERALD Chief Legal Officer and Secretary   Buffalo, New York April 17, 2024

TABLE OF

CONTENTS

This Proxy Statement includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements may appear throughout this report, including the Letter from our Chief Executive Officer (or “CEO”), the Proxy Summary and Board and Executive Compensation. These forward-looking statements generally are identified by anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will” or “would” or the negative of these words or other similar terms or expression. Forward-looking statements are based on current expectations and assumptions that are subject to risks and uncertainties that may cause actual results to differ materially. We describe risks and uncertainties that could cause actual results and events to differ materially in “Risk Factors,” “Quantitative and Qualitative Disclosures About Market Risk” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of our Forms 10-K and 10-Q. We undertake no obligation to update or revise publicly any forward-looking statements, whether because of new information, future events, or otherwise.

FOR THE 2024 ANNUAL MEETING OF STOCKHOLDERS

This proxy statement (this “Proxy Statement”) is furnished in connection with the solicitation by ACV Auctions Inc. (“we,” “us,” “our,” “ACV,” “ACV Auctions,” or the “Company”) on behalf of the Board of Directors (the “Board” or the “Board of Directors”) of proxies for use at the 2024 Annual Meeting of Stockholders of the Company to be held virtually on Wednesday, May 29, 2024 at 4:00 p.m. Eastern Time, at www.proxydocs.com/ACVA (the “2024 Annual Meeting”.)

IMPORTANT NOTICE REGARDING THE INTERNET AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 29, 2024

We have elected to provide access to our proxy materials over the internet under the Securities and Exchange Commission’s (“SEC”) “notice and access” rules. We believe electronic delivery will expedite the receipt of materials and will help lower costs and reduce the environmental impact of our annual meeting materials. Accordingly, we have sent you a Notice of Internet Availability of Proxy Materials (the “Notice”).

The Notice will provide instructions as to how stockholders may access and review the proxy materials, including the Notice of Annual Meeting of Stockholders, this Proxy Statement, and the 2023 Annual Report on Form 10-K, on the website referred to in the Notice or, alternatively, how to request that a copy of the proxy materials, including a proxy card, be sent to them by mail. The Notice will also provide voting instructions. Please note that, while our proxy materials are available at the website referenced in the Notice, and our Notice of Annual Meeting of Stockholders, this Proxy Statement and the 2023 Annual Report on Form 10-K are available on investors.acvauto.com, no other information contained on either website is incorporated by reference in or considered to be a part of this document.

We intend to mail the Notice on or about April 17, 2024 to all stockholders of record entitled to vote at the Annual Meeting. The proxy materials, including the Notice of Annual Meeting of Stockholders, this Proxy Statement, and the Annual Report on Form 10-K for the year ended December 31, 2023 will be made available to stockholders on www.proxydocs.com/ACVA on the same date.

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This Proxy Statement provides information for stockholders of ACV, as part of the solicitation of proxies by the Company and its Board of Directors from holders of the outstanding shares of the Company’s common stock for use at the 2024 Annual Meeting.

In this section, we highlight certain information discussed in more detail in this Proxy Statement. As it is only a summary, we encourage you to read the entire Proxy Statement before voting.

VOTING INSTRUCTIONS

For voting instructions, please see the Voting Information section of this Proxy Statement beginning on page 4.

BUSINESS OVERVIEW

Our mission is to build and enable the most trusted and efficient marketplace for buying and selling used wholesale vehicles with transparency and comprehensive data that was previously unimaginable.

We provide a highly efficient and vibrant marketplace platform (“marketplace platform” or “marketplace”) for wholesale vehicle transactions and data services that offer transparent and accurate vehicle information to our customers. Our marketplace platform leverages data insights and technology to power our digital marketplace and data services, enabling our dealers and commercial partners to buy, sell, and value vehicles with confidence and efficiency. Our marketplace platform is also supported by remarketing centers in various locations throughout the United States. We strive to solve the challenges that the used automotive industry has faced for generations and provide powerful technology-enabled capabilities to our dealers and commercial partners who fulfill a critical role in the automotive ecosystem. We help dealers source and manage inventory and accurately price their vehicles as well as process payments, transfer titles, manage arbitrations, and finance and arrange for transport of vehicles. Our marketplace platform encompasses:

We power our marketplace with technology-driven products and value-added services that address the entire transaction journey, ranging from pre-inspection scheduling to post-auction services including title transferability verification, payment processing, financing, and transportation, and also assists in facilitating transactions both on and off our marketplace. Our comprehensive suite of products and services includes ACV Transportation, ACV Capital, and our Customer Assurance (Go Green), which help create a seamless and frictionless buying and selling experience for our customers. We also provide data services to our customers for use outside of our marketplace. Our True360 Reports are used by dealers and commercial partners to provide transparent vehicle information to potential buyers, including dealers as well as consumers. Our ACV MAX inventory management system enables dealers to accurately price their wholesale and retail inventory. More recently, we introduced ClearCar, an artificial intelligence-powered suite of tools for dealers to build and enhance their trade-in process. We believe the data and technology services enabled by our marketplace platform can bring value to the entire automotive industry and transform both wholesale and retail markets.

Our marketplace platform benefits from a virtuous cycle driven by our scaled, digital marketplace and the data and technology we leverage every day. More buyers and sellers engaging on our marketplace drives greater liquidity and increased vehicle selection, which leads to an overall better marketplace experience. This leads to scale benefits, producing more vehicle and market data that helps grow our data and technology moat. As we collect more vehicle and market data, we are able to provide more efficiency to buyers and sellers through additional products, which in turn drives greater marketplace supply and scale. For example, our data and technology enable economies of scale that improve our value-added transportation and financing services. As we continue to grow and offer more comprehensive and efficient services, our customers can further benefit from a more streamlined, simple, and consistent experience across the full used vehicle lifecycle. These reinforcing flywheel effects continuously improve our scaled, digital marketplace, remarketing centers, and data and technology for our customers, resulting in growth for our marketplace platform.

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QUORUM

A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if stockholders holding a majority of the voting power of the outstanding shares of common stock entitled to vote are present at the Annual Meeting by virtual attendance or represented by proxy. As of the close of business on April 3, 2024, (“the Record Date”), there were 147,537,639 shares of Class A common stock and 17,347,458 shares of Class B common stock outstanding and entitled to vote.

Your shares will be counted towards the quorum only if you attend the Annual Meeting virtually, submit a valid proxy (or one is submitted on your behalf by your broker, bank or other nominee), or if you vote online during the Annual Meeting. Abstentions and broker non-votes will be counted towards the quorum requirement. If there is no quorum, the holders of a majority of the voting power of shares present at the Annual Meeting or represented by proxy may adjourn the Annual Meeting to another date.

RECORD DATE AND STOCKHOLDERS LIST

The Board has fixed the close of business on April 3, 2024 as the Record Date for the determination of stockholders entitled to notice of, and to vote at, the Annual Meeting. A list of stockholders of record entitled to vote at the Annual Meeting will be available for inspection by any stockholder, for any purpose germane to the meeting, during normal business hours, for a period of 10 days prior to and including the date of the Annual Meeting, at our corporate headquarters located at 640 Ellicott St., Suite 321, Buffalo, NY 14203.

STOCKHOLDERS ELIGIBLE TO VOTE

You are entitled to vote your shares at the Annual Meeting if you held your shares as of the close of business on the Record Date, April 3, 2024. Each holder of shares of our Class A common stock will have one vote per share of Class A common stock held as of the Record Date, and each holder of shares of our Class B common stock will have 10 votes per share of Class B common stock held as of the Record Date. Holders of Class B common stock hold the majority of the voting power of our common stock. The holders of the shares of our Class A common stock and Class B common stock will vote as a single class on all matters described in this Proxy Statement.

A list of our record stockholders as of the close of business on the Record Date is held on www.proxydocs.com/ACVA and will be made available to stockholders during the virtual Annual Meeting.

HOW TO VOTE

How you vote will depend on whether you are the stockholder of record or whether you are the beneficial owner of shares held in “street name.”

If, on the Record Date, your shares were registered directly in your name with our transfer agent, Computershare Trust Company, N.A., then you are a stockholder of record. As a stockholder of record, you may vote online during the Annual Meeting or by proxy in advance. Whether or not you plan to attend the Annual Meeting, we urge you to vote your shares. You may authorize that your shares be voted at the Annual Meeting in one of the following ways:

If, on the Record Date, your shares were held not in your name, but rather in an account at a brokerage firm, bank or other similar organization, then you are the beneficial owner of shares held in “street name” and the Notice is being forwarded to you by that organization. The organization holding your account is considered to be the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct your broker, bank or other agent regarding how to vote the shares in your account, but you must provide such instructions by the deadline provided in the materials provided by your broker bank or other agent. You are also invited to attend the Annual Meeting. However, since you are not the stockholder of record, you may be instructed to obtain a legal proxy from your broker, bank or other nominee and to submit a copy in advance of the meeting. Further instructions will be provided to you as part of your registration process.

If you are a beneficial owner and do not instruct your broker, bank or other agent how to vote your shares, the question of whether your broker or nominee will still be able to vote your shares depends on whether, pursuant to stock exchange rules, the particular proposal is deemed to be a “routine” matter.

Brokers and nominees can use their discretion to vote “uninstructed” shares with respect to matters that are considered to be “routine,” but not with respect to “non-routine” matters. Under applicable rules and interpretations, “non-routine” matters are matters that may substantially affect the rights or privileges of stockholders, such as mergers, stockholder proposals, elections of directors (even if not contested), executive compensation, and certain corporate governance proposals, even if management supported. Accordingly, your broker or nominee may vote your shares on Proposal 3. Your broker or nominee, however, may not vote your shares on Proposal 1 or Proposal 2 without your instructions. Such an event would result in a “broker non-vote.” Please instruct your bank, broker or other agent to ensure that your vote will be counted. Please see “Counting of Votes” for additional information regarding the impact of broker non-votes on the proposals.

If you vote via the internet or by telephone, your electronic vote authorizes the named proxies in the same manner as if you signed, dated and returned your proxy card. If you vote via the internet or by telephone, do not return your proxy card.

Even if you plan to attend the Annual Meeting, we recommend that you submit your proxy or voting instructions in advance of the Annual Meeting as described above so that your vote will be counted if you later decide not to attend or are unable to attend the Annual Meeting.

CHANGING OR REVOKING YOUR VOTE

If you are a holder of record, you may revoke your proxy at any time before it is voted at the Annual Meeting by delivering written notice of revocation to the Secretary of the Company, by submitting a subsequently dated proxy by mail, telephone or the internet in the manner described above under “How to Vote,” or by attending the Annual Meeting and voting online during the Annual Meeting. Your most recent vote by proxy card, telephone, or internet or your vote online during the Annual Meeting is the one that is counted. Attendance at the Annual Meeting will not itself revoke an earlier submitted proxy. If you hold your shares in street name, you must follow the instructions provided by your broker, bank or nominee to revoke your voting instructions, or if you have obtained a legal proxy from your broker, bank or other nominee giving you the right to vote your shares at the Annual Meeting, by attending the Annual Meeting and voting in person virtually.

CHOOSING NOT TO VOTE OR VOTING WITH A BLANK PROXY CARD

If you are a stockholder of record and do not vote through the internet, by telephone, by completing the proxy card that may be delivered to you or online during the Annual Meeting, your shares will not be voted.

If you return a signed and dated proxy card or otherwise vote without marking voting selections, your shares will be voted in accordance with the recommendations of our Board of Directors: “FOR” the election of each of the three nominees for director named in this Proxy Statement; “FOR” the approval, on a non-binding, advisory basis, of the compensation of our named executive officers, and “FOR” the ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2024. If any other matter is properly presented at the Annual Meeting, the persons acting as proxies will vote your shares using their best judgment.

COUNTING OF VOTES

Votes will be counted by the inspector of election appointed for the Annual Meeting, who will separately count, for Proposal 1, votes “FOR,” “WITHHOLD” and broker non-votes; with respect to Proposal 2, votes “FOR,” “AGAINST,” abstentions and broker non-votes; and, with respect to Proposal 3, votes “FOR,” “AGAINST” and abstentions. Broker non-votes on Proposals 1 and 2 will have no effect and will not be counted towards the vote total for these proposals.

Votes withheld on Proposal 1 and abstentions on Proposals 2 and 3 will have no effect and will not be counted towards the vote total for these proposals.

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The following table summarizes the minimum vote needed to approve each proposal and the effect of abstentions and broker non-votes.

VOTING RESULTS

Preliminary voting results will be announced at the Annual Meeting. In addition, final voting results will be published in a current report on Form 8-K that we expect to file within four business days after the Annual Meeting. If final voting results are not available to us in time to file a Form 8-K within four business days after the Annual Meeting, we intend to file a Form 8-K to publish preliminary results and, within four business days after the final results are known to us, file an additional Form 8-K to publish the final results.

STOCKHOLDER PROPOSALS AND DIRECTOR NOMINATIONS FOR THE 2025 ANNUAL MEETING

To be considered for inclusion in next year’s proxy materials, your proposal must be submitted in writing by December 18, 2024, to our Secretary at 640 Ellicott Street, #321, Buffalo, New York 14203, Attention: Secretary.

Pursuant to our amended and restated bylaws, if you wish to submit a proposal (including a director nomination) at the 2025 Annual Meeting of Stockholders that is not to be included in next year’s proxy materials, you must do so not later than the close of business on February 28, 2025 nor earlier than the close of business on January 29, 2025. However, if the date of our 2025 Annual Meeting of Stockholders is not between April 29, 2025 and June 28, 2025, to be timely, notice by the stockholder must be received (A) not earlier than the close of business on the 120th day prior to the 2025 Annual Meeting of Stockholders and (B) not later than the close of business on the later of the 90th day prior to the 2025 Annual Meeting of Stockholders or the 10^th day following the day on which public announcement of the date of the 2025 Annual Meeting of Stockholders is first made. You are also advised to review our amended and restated bylaws, which contain additional requirements about advance notice of stockholder proposals and director nominations.

In addition to satisfying the advance notice provisions in our amended and restated bylaws, including the earlier notice deadlines set out above, to comply with the SEC’s universal proxy rule, stockholders who intend to solicit proxies in support of director nominees other than the Company’s nominees in compliance with Rule 14a-19 under the Exchange Act must also provide notice that sets forth the information required by Rule 14a-19 no later than March 30, 2025. If the date of the 2025 Annual Meeting of Stockholders changes by more than 30 calendar days from the date of the 2024 Annual Meeting of Stockholders, such notice must instead be provided by the later of 60 calendar days prior to the date of the annual meeting for the 10th calendar day following the public announcement by the Company of the date of the 2025 Annual Meeting of Stockholders.

PROXY SOLICITATION COSTS

We will pay for the entire cost of soliciting proxies. In addition to these proxy materials, our directors and employees may also solicit proxies in person or by telephone, and will not be paid any additional compensation for soliciting proxies. We may also reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to beneficial owners.

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INFORMATION REGARDING DIRECTOR NOMINEES AND CURRENT DIRECTORS

Our Board currently consists of seven members and is divided into three classes. Each class consists, as nearly as possible, of one-third of the total number of directors, and each class has a three-year term. At each Annual Meeting of stockholders, the successors to directors whose terms then expire will be elected to serve from the time of election until the third annual meeting following their election.

Set forth below is biographical information for the director nominees and each director whose term of office will continue after the Annual Meeting. This includes information regarding each director’s experience, qualifications, attributes or skills that led our Board to recommend them for board service.

Nominees for Election at the 2024 Annual Meeting of Stockholders (Class III)

Ms. Castillo, Mr. Jones and Mr. Radecki are each currently members of our Board and have been nominated for reelection to serve as a Class III director. Each of these nominees has agreed to stand for reelection at the Annual Meeting. Our management has no reason to believe that any nominee will be unable to serve. If elected at the Annual Meeting, each of these nominees would serve until the Annual Meeting of Stockholders to be held in 2027 and until his or her successor has been duly elected, or if sooner, until the director’s death, resignation or removal.

Directors are elected by a plurality of the votes of the holders of shares present by virtual attendance or represented by proxy and entitled to vote on the election of directors. Accordingly, the three nominees receiving the highest number of “FOR” votes will be elected. Shares represented by executed proxies will be voted, if authority to do so is not withheld, for the election of the three nominees named above. If any nominee becomes unavailable for election as a result of an unexpected occurrence, shares that would have been voted for that nominee will instead be voted for the election of a substitute nominee proposed by us.

Directors Continuing in Office Until the 2025 Annual Meeting of Stockholders (Class I)

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Directors Continuing in Office Until the 2026 Annual Meeting of Stockholders (Class II)

INDEPENDENCE OF OUR BOARD OF DIRECTORS

Our Class A common stock is listed on the Nasdaq Global Select Market (“Nasdaq”). Under the Nasdaq listing standards and the rules of the SEC, including Rule 10A-3(b)(1) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), a majority of the members of our Board must qualify as “independent,” as affirmatively determined by our Board.

After review in accordance with the independence standards of Nasdaq and the SEC of all relevant identified transactions or relationships between each director, and any of his or her family members, and ACV, our senior management and our independent auditors, our Board has affirmatively determined that the following six of our seven directors are independent directors within the meaning of the applicable Nasdaq listing standards: Ms. Castillo, Mr. Goodman, Mr. Hirsch, Mr. Jones, Ms. Kamerick and Mr. Radecki. The Board has also determined that each member of our standing committees is independent within the meaning of both Nasdaq’s and the SEC’s director independence standards. In making these determinations, each of our directors provided information regarding whether such director, or any member of his or her immediate family, had a direct or indirect material interest in any transaction involving ACV, or received personal benefits outside the scope of such person’s normal consideration. Mr. Chamoun is not independent due to his position as our Chief Executive Officer.

In making this determination, our Board considered the applicable listing standards and rules and the current and prior relationships that each non-employee director has with our Company and all other facts and circumstances our Board deemed relevant in determining their independence, including their beneficial ownership of our capital stock and the transactions involving them described in “Transactions with Related Persons.”

There are no family relationships among any of our directors or executive officers.

BOARD LEADERSHIP STRUCTURE

Our current Board has an independent chair, Mr. Goodman. Our Corporate Governance Guidelines provide our Board of Directors with flexibility to select the appropriate leadership structure based on the specific needs of our business and the best interests of our stockholders. If the Chairperson of the Board is not independent, the Board may appoint a Lead Independent Director upon the recommendation of the Nominating & Corporate Governance Committee, which will be a director who qualifies as independent under the applicable rules of Nasdaq.

COMPOSITION AND DIVERSITY OF OUR BOARD

Our Board believes that a diverse board is better able to effectively oversee our management and strategy, and position ACV to deliver long-term value for our stockholders. Our Board’s goal is to maintain a well-balanced composition that combines a variety of experiences, backgrounds, skills, and perspectives that enable the Board to guide ACV effectively in the pursuit of our strategic objectives. We seek to assemble a board that possesses the appropriate balance of professional and industry knowledge, financial expertise, diversity and high-level management experience necessary to oversee and direct our business.

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To that end, we have identified and evaluated nominees in the broader context of the Board’s overall composition, with the goal of recruiting members who possess relevant expertise and experience upon which to be able to offer advice and guidance to management, have sufficient time to devote to the affairs of ACV, demonstrate excellence in their field, have the ability to exercise sound business judgment, have experience as a board member or executive officer of another publicly held company, and have the commitment to rigorously represent the long-term interests of our stockholders. To further provide a mix of experience and perspective on the Board, we also take into account diversity (including diversity of gender, ethnic background and country of origin), skills and such other factors that we deem appropriate to maintain a balance of knowledge, experience and capability on the Board.

BOARD DIVERSITY

ROLE OF THE BOARD OF DIRECTORS IN RISK OVERSIGHT

One of the key functions of our Board is informed oversight, rather than direct management of the risk management process that our management is responsible for. As such, our Board has an active role, as a whole and also at the committee level, in overseeing management of company risk. Our Board administers this oversight function directly through the Board as a whole, as well as through various standing committees of the Board that address risks inherent in their respective areas of oversight. In particular, our Board monitors and assesses strategic risk exposure, including the nature and degree of risk our Company faces.

While our full Board has overall responsibility for risk oversight, it has delegated oversight of certain risks to its committees. Our Audit Committee oversees management of our financial risk exposures and the steps our management has taken to monitor and control these exposures. Furthermore, our Audit Committee oversees risks associated with cyber and information security, competition and regulation, conflicts of interest, and mitigation of such risks. Our Audit Committee also oversees the performance of our internal audit function. The Compensation Committee of the Board is responsible for overseeing the management of risks relating to and arising from the Company’s compensation plans and arrangements, which includes evaluating succession plans for our executive officers. The Nominating & Corporate Governance Committee oversees the composition of our Board and development of our directors, oversees the management of risks relating to environmental, social and governance (“ESG”) policies, practices, disclosures and reporting, and evaluates the adequacy of our corporate governance practices and reporting.

At periodic meetings of our Board and its committees, management reports to and seeks guidance from our Board and its committees with respect to the most significant risks that could affect our business, such as legal risks, cybersecurity, and financial, tax and audit-related risks. In addition, among other matters, management provides our Audit Committee periodic reports on our risk programs and investment policy and practices.

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The following table provides membership information for each of the standing committees of our Board:

 C  Chair

 M  Member

 F   Financial Expert and Member

Our Board has determined that each member of each standing committee meets the applicable Nasdaq rules and regulations regarding “independence” and each member is free of any relationship that would impair his or her individual exercise of independent judgment with regard to us.

BOARD COMMITTEES

Our Board has three standing committees: the Audit Committee, the Compensation Committee, the Nominating and Corporate Governance Committee.

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COMPENSATION COMMITTEE PROCESSES AND PROCEDURES

Our Compensation Committee generally meets quarterly and with greater frequency if necessary. The Compensation Committee also acts periodically by unanimous written consent in lieu of a formal meeting. The agenda for each meeting is usually developed by the Chairperson of the Compensation Committee, in consultation with management. The Compensation Committee meets regularly in executive session. However, from time to time, various members of management and other employees as well as outside advisors or consultants may be invited by the Compensation Committee to make presentations, to provide financial or other background information or advice or to otherwise participate in Compensation Committee meetings. Our Chief Executive Officer may not participate in, or be present during, any deliberations or determinations of the Compensation Committee regarding his compensation.

The charter of the Compensation Committee grants the Compensation Committee full access to all books, records, facilities and personnel of ACV. In addition, under the charter, the Compensation Committee has the authority to obtain, at our expense, advice and assistance from compensation consultants and internal and external legal, accounting or other advisors and other external resources that the Compensation Committee considers necessary or appropriate in the performance of its duties. The Compensation Committee has direct responsibility for the oversight of the work of any consultants or advisors engaged for the purpose of advising the Compensation Committee. In particular, the Compensation Committee has the authority to retain compensation consultants to assist in its evaluation of executive and director compensation, including the authority to approve the consultant’s reasonable fees and other retention terms.

After taking into consideration the six factors prescribed by the SEC and Nasdaq that bear upon the determination of an advisor as independent, the Compensation Committee again engaged Compensia, Inc. (“Compensia”) as its compensation consultants. The Compensation Committee requested that Compensia:

As part of its engagement, Compensia was requested by the Compensation Committee to develop a comparative group of companies and to perform analyses of competitive performance and compensation levels for that group. Compensia ultimately developed recommendations that were presented to the Compensation Committee for its consideration and approved, which is further discussed in our Compensation Discussion & Analysis section.

Generally, the Compensation Committee’s process for determining executive compensation comprises two related elements: the determination of compensation levels and the establishment of performance objectives for the current year. For executive officers (including our NEOs, other than our Chief Executive Officer), the Compensation Committee solicits and considers evaluations and recommendations submitted to the committee by our Chief Executive Officer. The Compensation Committee discusses and recommends proposed compensation for the Chief Executive Officer to our Board of Directors, which then approves the Chief Executive Officer’s compensation and equity awards. For all executives and directors, as part of its deliberations, the Compensation Committee may review and consider, as appropriate, materials such as financial reports and projections, operational data, executive and director stock ownership information, company stock performance data, analyses of historical executive compensation levels and current company-wide compensation levels and recommendations of the Compensation Committee’s compensation consultant, including analyses of executive and director compensation paid at other companies identified by the consultant.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

No member of our Compensation Committee is currently one of our officers or employees. None of our executive officers currently serves, or has served during the last year, as a member of the board of directors or compensation committee of any entity that has one or more executive officers serving as a member of our Board of Directors or Compensation Committee.

NOMINATING AND CORPORATE GOVERNANCE COMMITTEE PROCESSES AND PROCEDURES

In the case of an incumbent director whose term of office is set to expire, the Nominating and Corporate Governance Committee reviews such director’s overall service to ACV during his or her term, including the number of meetings attended, level of participation, quality of performance and any other relationships and transactions that might impair such director’s independence. In the case of new director candidates, our Nominating and Corporate Governance Committee also evaluates whether the nominee is independent for Nasdaq purposes, based upon applicable Nasdaq listing standards, applicable SEC rules and regulations and the advice of counsel, if necessary. To identify qualified candidates for membership on the Board, our

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Nominating and Corporate Governance committee considers criteria approved by the Board, including consideration of the potential conflicts of interest, director independence and other requirements. Our Nominating and Corporate Governance Committee conducts any appropriate and necessary inquiries into the backgrounds and qualifications of possible candidates. After considering the function and needs of our Board, our Nominating and Corporate Governance Committee meets to discuss and consider the candidates’ qualifications and then selects a nominee for recommendation to our Board.

The Nominating and Corporate Governance Committee’s policy is to consider recommendations for director nominees made by stockholders and evaluate them using the same criteria as for other candidates. Recommendations received from stockholders are reviewed by the Nominating and Corporate Governance Committee to determine whether each candidate meets the criteria described herein, and if so, whether the candidate’s expertise and particular set of skills and background fit the current needs of the Board. Any stockholder recommendation must be sent to the Nominating and Corporate Governance Committee at 640 Ellicott Street, #321, Buffalo, New York 14203, Attention: Secretary, and must include detailed background information regarding the suggested candidate that demonstrates how the individual meets the Board membership criteria.

Any stockholder nominations of director candidates must comply with applicable law and our amended and restated bylaws in order to be brought before an Annual Meeting, which procedures are summarized below, and the Nominating and Corporate Governance Committee will review the qualifications of any such candidate in accordance with the criteria described herein. Stockholders who wish to nominate individuals for election to our Board of Directors should do so by delivering a written recommendation to our Nominating and Corporate Governance Committee at 640 Ellicott Street, #321, Buffalo, New York 14203, Attention: Secretary, at least 120 days prior to the anniversary date of the mailing of our proxy statement for the preceding year’s annual meeting of stockholders.

Each submission must include, among other things, the name, age, business address and residence address of the proposed candidate, the principal occupation or employment of the proposed candidate, details of the proposed candidate’s ownership of our capital stock, a description of the proposed candidate’s business experience for at least the last five years, and a description of the proposed candidate’s qualifications as a director. Any such submission must be accompanied by the written consent of the proposed candidate to be named as a nominee and to serve as a director if elected, and we may require any proposed nominee to furnish such other information as is reasonably required to determine the eligibility of such proposed nominee to serve as an independent director under applicable Nasdaq requirements or applicable law. For stockholders who wish to nominate directors in accordance with the procedures in our amended and restated bylaws and Rule 14a-19 under the Exchange Act, please see the deadlines described in “Stockholder Proposals and Director Nominations for the 2025 Annual Meeting” above and refer to our amended and restated bylaws for a complete description of the required procedures for nominating a candidate to our Board.

CHANGE IN THE NUMBER OF DIRECTORS

Any additional directorships resulting from an increase in the number of directors will be distributed among the three classes of directors so that, as nearly as possible, each class will consist of one-third of the directors. Vacancies on the Board may be filled only by persons elected by a majority of the remaining directors. A director elected by the Board to fill a vacancy in a class, including vacancies created by an increase in the number of directors, shall serve for the remainder of the full term of that class and until the director’s successor is duly elected and qualified. The division of our Board into three classes with staggered three-year terms may delay or prevent a change of our management or a change in control of ACV.

COMMUNICATIONS WITH OUR BOARD OF DIRECTORS

Our relationship with our stockholders is an important part of our corporate governance program. Engaging with stockholders helps us to understand how they view us, to set goals and expectations for our performance, and to identify emerging issues that may affect our strategies, corporate governance, compensation practices or other aspects of our operations. Our stockholder and investor outreach includes investor road shows, analyst meetings, and investor conferences and meetings. We also communicate with stockholders and other stakeholders through various media, including our annual report and SEC filings, proxy statement, news releases and our website. Our webcasts for quarterly earnings releases are open to all. These webcasts are available in real time and are archived on our website for a period of time.

Stockholders of ACV wishing to communicate with our Board or an individual director may do so by sending a written communication to the Board or such director c/o 640 Ellicott Street, #321, Buffalo, New York 14203, Attention: Secretary. The Secretary will review each communication and will forward such communication to the Board or to any individual director to whom the communication is addressed unless the communication contains advertisements or solicitations or is unduly hostile, threatening or similarly inappropriate, in which case the Secretary shall discard the communication or inform the proper authorities, as may be appropriate.

ENVIRONMENTAL, SOCIAL AND GOVERNANCE HIGHLIGHTS

We aim to provide trust and transparency in everything we do, including with respect to our teammates, our customers, our community, and the environment. We continue to invest in improving our performance with respect to each of these important topics, with a focus on maintaining the highest standards of business conduct and ethics.

In 2023, under the oversight of our Nominating and Corporate Governance Committee, we determined the best ways we can continue to incorporate the tenets of our ESG program into our daily operating standards. What follows are some of our areas of focus:

SOCIAL

ACV teammates make this company what it is. They are the very foundation of all that we do. We respect and listen to our teammates, and we care for their well-being.

Diversity, Equity, and Inclusion:

At ACV, we believe in an inclusive culture in which every individual is welcomed and empowered to celebrate their true selves. We view the principles of diversity, equity, and inclusion as transformative building blocks that result in an ever-evolving organization where we are able to create a universally welcoming environment for our teammates, customers, and the communities in which we operate and with whom we engage. We are committed to recruiting, retaining and developing high-performing, innovative and engaged employees with diverse backgrounds and experiences.

Culture and Wellness:

We are proud of our corporate culture which is centered around providing trust and transparency, and our efforts in this space places us in a better position to use these values to drive better business results. In recognition of our corporate culture, we won the award for “Best Tech Culture for Large Company” at the 2023 Betas Technology Awards and Showcase.

ACV regularly offers wellness programs including physical fitness challenges, financial wellness educational courses, and meditation classes to address the overall wellness of our teammates. We provide financially and family-friendly health care options including generous parental leave, telehealth resources, and country-wide health insurance.

In addition to having managers and People Team resources within the company that teammates can go to with questions or issues, we also maintain an ethics hotline for our employees as an additional way for them to report concerns, including doing so anonymously if they choose.

Community:

Giving back to the community is a key component of our culture. In particular, we offer company-driven initiatives to support local charities and encourage our teammates to create their own charitable initiatives with teammates in their area. For example, in recent years:

These and many more charitable events keep our teammates engaged with and improving our communities.

ENVIRONMENTAL

By the very nature of our business, we encourage auto dealers to spend less resources moving vehicles, and facilitate the reuse of existing resources. Since the primary focus of our business is a digital platform for dealers to buy and sell cars from each other, we reduce the need to transfer vehicles multiple times before they get to the end buyer. Reduced transporting of vehicles results in less use of gasoline, lower CO2 emissions, and less congestion on our roads and rail systems. We are also focused on the used car industry, encouraging the reuse of existing vehicles.

We also are mindful of our environment in our day-to-day activities, offering recycling services in our offices, water dispensers with the goal of reducing the use of individual bottled water, offering EV charging stations at our headquarters, and organizing electronic waste disposal and donation opportunities.

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GOVERNANCE

Code of Business Conduct and Ethics

Our Board has adopted a written code of business conduct and ethics that applies to all of our employees, officers and directors. The full text of our code of business conduct and ethics is available on the investor relations section of our website, which is located at https://investors.acvauto.com. We are committed to maintaining high standards of financial integrity, open communication, and a workplace environment where employees can raise concerns free of harassment, discrimination or retaliation. We maintain a formal whistleblower policy which describes the means by which employees, directors and officers can report suspected violations of our code of business conduct and ethics. We conduct our business and have put policies in place to ensure our teammates act under the guiding principles of integrity and fair dealing in all that we do.

We believe our Board of Directors’ responsibility is to fulfill its fiduciary duties and otherwise to exercise business judgment in the best interests of the Company and its stockholders. To guide itself in exercising its responsibilities, the Board has adopted corporate governance guidelines which are designed to give directors a flexible framework for effectively pursuing the Company’s objectives for the benefit of its stockholders. The corporate governance guidelines set forth the practices the Board intends to follow with respect to board composition and selection, the role of the Board of Directors, board meetings and involvement of senior management, Chief Executive Officer performance evaluation, succession planning, and board committees and compensation.

HEDGING AND PLEDGING POLICIES

Our Board has adopted an Insider Trading Policy, which prohibits hedging or monetization transactions by employees, Directors, other applicable members of management and designated consultants, including through the use of financial instruments such as prepaid variable forward contracts, equity swaps, collars, and exchange funds. In addition, our Insider Trading Policy prohibits trading in derivative securities related to our Class A common stock, which includes publicly traded call and put options, engaging in short selling of our Class A common stock, purchasing our Class A common stock on margin or holding it in a margin account and pledging our shares of Class A common stock as collateral for a loan.

In accordance with the requirements of Section 14A of the Exchange Act, we are providing our stockholders the opportunity to vote to approve, on a non-binding, advisory basis, the compensation of our named executive officers (as disclosed under “Executive Compensation—Compensation Discussion and Analysis,” the tables included under the heading “Executive Compensation” and the accompanying narrative).

You are encouraged to review the section titled “Executive Compensation” and, in particular, the section titled “Executive Compensation—Compensation Discussion and Analysis” in this Proxy Statement, which provide a comprehensive review of our executive compensation program and its elements, objectives and rationale.

The vote on this resolution is not intended to address any specific element of compensation, rather the vote relates to the compensation of our named executive officers in its totality, as described in this Proxy Statement in accordance with the compensation disclosure rules of the SEC.

In accordance with Section 14A of the Exchange Act rules, stockholders are asked to approve the following non-binding resolution:

“RESOLVED, that the Company’s stockholders hereby approve, on a non-binding, advisory basis, the compensation of the Company’s named executive officers, as disclosed in the Company’s proxy statement for the ACV Auctions Annual Meeting of Stockholders to be held on May 29, 2024, pursuant to the compensation disclosure rules of the Securities and Exchange Commission, including the Compensation Discussion and Analysis, the compensation tables and the accompanying narrative.”

The approval of this non-binding proposal requires the affirmative vote of the holders of shares representing a majority of the voting power of the outstanding shares of common stock present by virtual attendance or represented by proxy and voting affirmatively or negatively at the Annual Meeting.

Since this proposal is an advisory vote, the result will not be binding on our Board of Directors or our Compensation Committee. However, our Board of Directors values our stockholders’ opinions, and our Board of Directors and the Compensation Committee will take into account the outcome of the advisory vote when considering future executive compensation decisions.

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The Audit Committee of our Board has appointed Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2023. Representatives of Ernst & Young LLP are expected to be present at the Annual Meeting. They will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions.

Stockholders are being asked to ratify the appointment of Ernst & Young LLP as the independent registered public accounting firm for the Company for the fiscal year ending December 31, 2024. Ernst & Young LLP was engaged as the Company’s independent registered public accounting firm by the Audit Committee and has audited the Company’s financial statements since 2018.

The affirmative vote of the holders of shares representing a majority of the voting power of the outstanding shares of common stock present by virtual attendance or represented by proxy and voting affirmatively or negatively at the Annual Meeting will be required to ratify the appointment of Ernst & Young LLP.

Although ratification is not required by applicable laws, our amended and restated bylaws or otherwise, the Board is submitting the selection of Ernst & Young LLP to our stockholders for ratification because we value your views on our independent registered public accounting firm. The Audit Committee intends to carefully consider the results of the vote. If the stockholders do not ratify the appointment of Ernst & Young LLP, the committee will reconsider Ernst & Young LLP’s selection. Even if the selection is ratified, the Audit Committee, in its discretion, may select a different independent registered public accounting firm at any time during the year if the Audit Committee determines that such a change would be in the best interests of the Company and our stockholders.

Principal Accountant Fees and Services

The following table presents aggregate fees billed to us by Ernst & Young LLP and its affiliates for the periods set forth below.

Pre-Approval Policies and Procedures

The Audit Committee has adopted a policy and procedures for the pre-approval of audit and non-audit services rendered by our independent registered public accounting firm, Ernst & Young LLP. The policy generally permits pre-approval of specified services in the defined categories of audit services, audit-related services, tax services and permitted non-audit services. Pre-approval may also be given as part of the Audit Committee’s approval of the scope of the engagement of the independent registered public accounting firm or on an individual, explicit, case-by-case basis before the independent registered public accounting firm is engaged to provide each service. The pre-approval of services may be delegated to one or more of the Audit Committee’s members, but any pre-approval decision made pursuant to such delegation must be reported to the full Audit Committee at its next scheduled meeting.

The Audit Committee has determined that the rendering of services other than audit services by Ernst & Young LLP is compatible with maintaining the principal accountant’s independence.

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The Audit Committee oversees the accounting and financial reporting processes of the Company, including establishing, assessing, and maintaining internal controls and audits of the financial statements of the Company on behalf of the Board. The Company’s management has primary responsibility for the financial statements and for assessing and maintaining effective internal control over financial reporting.

The Audit Committee acts pursuant to a written charter. A copy of the charter is available under the “Corporate Governance” section of the “Investor Relations” page of the Company’s website, www.acvauto.com. The Audit Committee is comprised solely of independent directors as defined by the Nasdaq listing standards and Rule 10A-3 of the Exchange Act.

The Audit Committee has reviewed and discussed the audited financial statements for the fiscal year ended December 31, 2023 with our management. The Audit Committee has also reviewed and discussed with Ernst & Young LLP, our independent registered public accounting firm, the matters required to be discussed by Auditing Standard No. 1301, Communications with Audit Committees, as adopted by the Public Company Accounting Oversight Board (“PCAOB”). The Audit Committee has also received the written disclosures and the letter from Ernst & Young LLP required by applicable requirements of the PCAOB regarding the independent accountants’ communications with the Audit Committee concerning independence and has discussed with Ernst & Young LLP the accounting firm’s independence.

Based on the foregoing, the Audit Committee has recommended to our Board, and the Board has approved, that the audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 and filed with the SEC.

Respectfully submitted by the Audit Committee of the Board of Directors

Eileen Kamerick, Chair

René Jones

Brian Radecki

The material in this report is not “soliciting material,” is not deemed “filed” with the Commission and is not to be incorporated by reference in any filing of ACV Auctions under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.

2023 DIRECTOR COMPENSATION

The following table sets forth information regarding compensation earned by or paid to our non-employee directors for the year ended December 31, 2023:

Mr. Chamoun, our Chief Executive Officer, is also a member of our Board but does not receive any additional compensation for his service as a director. See the section titled “Executive Compensation” for more information regarding the compensation earned by Mr. Chamoun.

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NON-EMPLOYEE DIRECTOR COMPENSATION POLICY

Our Board adopted a non-employee director compensation policy, which became effective in March 2021, that is applicable to all of our non-employee directors. This non-employee director compensation policy provides that each such non-employee director will receive the following compensation for service on our Board:

Pursuant to the non-employee director compensation policy, each non-employee director may elect to receive all of his or her cash compensation payable thereunder as an RSU award, which we refer to as the retainer RSU award. If a non-employee director timely makes this election, the retainer grant will be automatically granted to the non-employee director on January 1 of each year and will have an aggregate grant date fair value, as calculated in accordance with ASC Topic 718, equal to the aggregate cash compensation that would have otherwise been paid for the upcoming calendar year. Each retainer RSU award will vest in four equal installments on the last day of each of the company’s fiscal quarters, subject to the non-employee director’s continued service though each applicable vesting date. None of our current non-employee directors has made such an election.

Each of the RSU awards granted under the non-employee director compensation policy described above will be granted under our 2021 Equity Incentive Plan (“2021 Plan”). Each such award will vest subject to the non-employee director’s continued service with us through each applicable vesting date, provided that each RSU award will vest in full upon a “Change in Control,” as defined in the 2021 Plan.

EXECUTIVE OFFICERS

The following table sets forth, for our executive officers, their ages and position held with us as of the date of this Proxy Statement:

Biographical information for George Chamoun is included above with the director biographies under the caption “Information Regarding Director Nominees and Current Directors.”

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COMPENSATION DISCUSSION AND ANALYSIS

Overview

This Compensation Discussion and Analysis section discusses our executive compensation policies and how and why our Compensation Committee arrived at specific compensation decisions for the fiscal year ended December 31, 2023 for the individuals who served as our principal executive officer, our principal financial officer and our three other most highly compensated executive officers as of December 31, 2023 (collectively, the “NEOs”):

Business Highlights

Our Business

Our mission is to build and enable the most trusted and efficient digital marketplaces for buying and selling used vehicles with transparency and comprehensive data that was previously unimaginable.

We provide a highly efficient and vibrant marketplace platform (“marketplace platform” or “marketplace”) for wholesale vehicle transactions and data services that offer transparent and accurate vehicle information to our customers. Our marketplace platform leverages data insights and technology to power our digital marketplace and data services, enabling our dealers and commercial partners to buy, sell, and value vehicles with confidence and efficiency. Our marketplace platform is also supported by remarketing centers in various locations throughout the United States. We strive to solve the challenges that the used automotive industry has faced for generations and provide powerful technology-enabled capabilities to our dealers and commercial partners who fulfill a critical role in the automotive ecosystem. We help dealers source and manage inventory and accurately price their vehicles as well as process payments, transfer titles, manage arbitrations, and finance and assist in the transport of vehicles.

Financial Highlights for Fiscal Year Ended December 31, 2023

For the fiscal year ended December 31, 2023, highlights of our business included the following:

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Executive Summary

The key features of our executive compensation program, policies and practices include the following:

Objectives, Philosophy, and Elements of Executive Compensation

Our executive compensation program aims to achieve the following main objectives:

Our executive compensation program generally consists of the following three principal components: base salary, performance-based bonuses (payable in cash or equity at our discretion) and long-term equity incentive compensation. We also provide our NEOs with benefits available to all our employees, including retirement benefits under ACV’s 401(k) plan and participation in our employee health and welfare benefit plans. The below chart summarizes the three main elements of our executive compensation, their objectives and key features.

Our executive compensation philosophy is to provide a market-competitive compensation package to our NEOs that includes significant short-term incentives for the achievement of measurable corporate objectives and long-term incentives. We believe that this approach provides an appropriate blend of short-term and long-term incentives to maximize stockholder value.

We grant our NEOs long-term incentive compensation in the form of restricted stock units (“RSUs”). We believe that RSUs both align the interests of our employees with our stockholders and provide a longer-term focus through a multi-year vesting schedule, while managing dilution to existing investors and providing greater predictability to our NEOs in the value of their compensation. For the fiscal year ending December 31, 2023, we used RSUs as our primary equity vehicle for our executive officers, including our NEOs. Prior to our initial public offering in March 2021, we granted certain members of our management team, including some of our NEOs, long-term incentive compensation in the form of stock options to purchase shares of our Class B common stock.

To maintain a competitive compensation program, we also offer cash compensation in the form of base salaries and short-term incentives in the form of annual performance-based payments (payable in cash or equity at our discretion), resulting in total annual compensation for our executive officers aligned with market practices in our competitive markets.

During the fiscal year ended December 31, 2023, the Compensation Committee, with the assistance of our independent compensation consultant, Compensia, reviewed our executive compensation, including base salaries, short-term incentives, equity awards and benefit programs, to confirm the continued alignment of our compensation program with stockholder interests and appropriate rewards and incentives for our NEOs.

How We Determine Executive Compensation

Role of Our Compensation Committee and Management

The Compensation Committee is appointed by our Board of Directors and helps our Board of Directors oversee our compensation program, policies, and plans with the goal of attracting, incentivizing, retaining and rewarding top-quality executive management and employees. The Compensation Committee is responsible for reviewing and determining all compensation paid to our executive officers, including our NEOs, and also reviews our compensation practices, policies and programs.

The Compensation Committee meets quarterly, and with greater frequency if necessary, throughout the year to manage and evaluate our executive compensation program, and generally determines the principal components of compensation (base salary, performance bonus and equity awards) for our NEOs on an annual basis; however, decisions may occur at other times for new hires, promotions or other special circumstances as our Compensation Committee determines appropriate. The Compensation Committee does not delegate authority to approve executive officer compensation and retains the final authority to make all compensation decisions for our executive officers, excepting our Chief Executive Officer whose compensation is determined by our Board following the recommendations of our Compensation Committee. The Compensation Committee does not have formal policies for allocating compensation among base salary, annual performance bonuses and equity awards, short-term and long-term compensation or among cash and non-cash compensation. Instead, the Compensation Committee uses its

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judgment to establish a total compensation program for each NEO that is a mix of current, short-term and long-term incentive compensation, and cash and non-cash compensation, that it believes appropriate to achieve the goals of our executive compensation program and our corporate objectives.

In fulfilling its responsibilities, the Compensation Committee considers input from Compensia and, as appropriate, management. Our executive officers are not present during deliberations of, or decisions regarding, their own compensation. The Chief Executive Officer evaluates and provides to the Compensation Committee performance assessments and compensation recommendations with respect to each of our NEOs, other than himself. While the Chief Executive Officer discusses his recommendations with the Compensation Committee, he does not participate in the deliberations concerning, or the determination of, his own performance and compensation and is not present for these discussions. The Compensation Committee discusses and recommends proposed compensation for the Chief Executive Officer to our Board of Directors, which then approves the Chief Executive Officer’s compensation and equity awards. From time to time, various other members of management and other employees as well as outside advisors or consultants are invited by the Compensation Committee to make presentations, provide financial or other background information or advice or otherwise participate in the Compensation Committee meetings, including William Zerella (Chief Financial Officer), Leanne Fitzgerald (Chief Legal Officer) and Sallie Reid (Chief People Officer).

Role of Compensation Consultant

The Compensation Committee has the sole authority to retain compensation consultants to assist in its evaluation of executive compensation, including the authority to approve the consultant’s reasonable fees and other retention terms. The Compensation Committee directly engaged Compensia as its independent compensation consultant for the fiscal year ended December 31, 2023. Compensia’s engagement included:

The Compensation Committee has analyzed whether the work of Compensia as compensation consultant raises any conflict of interest, taking into account relevant factors in accordance with SEC rules and the applicable Nasdaq listing standards. Compensia did not perform any work for us in 2023 other than in respect of executive officers, and compensation of our vice presidents and non-executive officers. Based on its analysis, the Compensation Committee determined that the work of Compensia and the individual compensation advisors employed by Compensia does not create any conflict of interest pursuant to the SEC rules and Nasdaq listing standards.

Use of Competitive Market Compensation Data

The Compensation Committee believes that it is important when making its compensation decisions to be informed as to the current practices of comparable public companies with which we compete for top talent. To this end, the Compensation Committee directed Compensia to develop a proposed peer group list of the publicly traded companies to be used in connection with assessing our compensation practices.

Compensia proposed, and the Compensation Committee approved, a group of independent public companies that are reasonably comparable to ACV in terms of industry and financial characteristics to provide management and the Compensation Committee with relevant compensation information to support compensation decision-making. The executive compensation peer group was intended to reflect companies with executive positions of similar scope and complexity to ACV. In determining the peer group for 2023, Compensia considered the industry and business focus of the peers, focusing on internet direct marketing retail, interactive media and services and software. The peer group for 2023 also includes companies in similar industries, as these are companies with which we compete for talent (KAR Auctions, CarGurus, and Cars.com). Compensia also considered revenue (target range $200 million to $850 million, which represents 0.5x to 2.0x of ACV’s revenue in 2022) and market capitalization (target range $390 million to $3.9 billion, which represents 0.3x to 3.0x of ACV’s market capitalization as of January 2023).

The peer group with respect to the fiscal year ended December 31, 2023 is as follows:

Using data compiled from the peer companies, Compensia completed an assessment of our executive compensation to inform the Compensation Committee’s determinations regarding executive compensation for the fiscal year ended December 31, 2023. Compensia prepared, and the Compensation Committee reviewed, a range of market data reference points (generally at the 25th, 50th, and 75th percentiles of the market data) with respect to base salary, performance bonuses, equity compensation (valued based both on an approximation of grant date fair value and as well as ownership percentage), total target cash compensation (base salary and the annual target performance bonus) and total direct compensation (total target cash compensation and equity compensation) with respect to each of the executive officers, including our NEOs. The Compensation Committee did not target pay to fall at any particular percentile of the market data, but rather reviewed these market data reference points as a helpful reference point in making compensation decisions for the fiscal year ended December 31, 2023. Market data is only one of the factors that the Compensation Committee considers in making compensation decisions. The Compensation Committee considers other factors as described below under “Factors Used in Determining Executive Compensation.”

Factors Used in Determining Executive Compensation

The Compensation Committee sets the compensation of our NEOs at levels determined to be competitive and appropriate for each NEO, using their professional experience and judgment. Pay decisions are not made by use of a formulaic approach or benchmark; the Compensation Committee believes that executive pay decisions require consideration of a multitude of relevant factors which may vary from year to year. In making executive compensation decisions, the Compensation Committee generally takes into consideration the factors listed below.

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2023 Executive Compensation Program

Base Salary

Base salary represents the fixed portion of the compensation of our executive officers, including our NEOs, and is an important element of compensation intended to attract and retain highly talented individuals. On March 13, 2023, the Compensation Committee reviewed the base salaries of our NEOs other than our Chief Executive Officer, taking into consideration the competitive market analysis prepared by Compensia and the recommendations of our Chief Executive Officer, as well as the other factors described in the section above. Following this review, the Compensation Committee adjusted the annual base salaries of our NEOs for the remainder of 2023 as follows (with our Board of Directors approving the base salary of the Chief Executive Officer):

Annual Performance-Based Bonus Program

Our annual performance-based bonus program for our executive officers, including our NEOs (the “Performance Bonus Plan”) provides incentive compensation that is specifically designed to motivate our NEOs to achieve preestablished company-wide priorities set by the Board of Directors or Compensation Committee and to reward them for results and achievements in a given year. The annual target bonus opportunities for our NEOs are typically determined by the Compensation Committee (with approval of the Board of Directors, in the case of our CEO) each year and are expressed as a percentage of each individual’s annual base salary, with the potential bonus opportunity generally commensurate with each executive officer’s role and responsibilities and communicated to each NEO. The company-wide priorities are measured at the end of each year after our financial statements have been prepared. The Performance Bonus Plan amounts are paid out in cash or equity or a combination of the two.

The Compensation Committee established the size of the NEOs’ annual target bonus opportunities following a review of the factors described in the section above. The target bonus opportunities approved for each of our NEOs for the fiscal year ended December 31, 2023 were as follows:

Executive Bonus Goal Setting. The Compensation Committee approved the initial performance metrics and their relative weighting for the performance-based bonus awards under the Performance Bonus Plan for the fiscal year ended December 31, 2023 in March 2023. The targets against which performance is measured are generated through our annual operating plan process, which was approved by our Board of Directors, and the performance targets were reviewed with our Compensation Committee and finalized in March 2023. Under the Performance Bonus Plan, the Compensation Committee has sole discretion and authority to administer and interpret the plan, including establishing corporate performance goals, and the relative weights of such performance goals. The Board of Directors also approves the Chief Executive Officer’s bonus under the Performance Bonus Plan, as recommended by the Compensation Committee.

The Compensation Committee recommended to the Board of Directors that the Performance Bonus Plan use an Adjusted EBITDA gate: threshold of $32.5 million of Adjusted EBITDA loss, target of $30 million of Adjusted EBITDA loss and stretch goal of $25 million of Adjusted EBITDA loss, as well as GAAP revenue goals, with a threshold of $480 million of GAAP revenue (at which point 50% pays out), target of $489.5 million of revenue (at which point 100% pays out) and stretch bonus goal of $500 million of revenue (at which point 150% pays out). Adjusted EBITDA is a performance measure that we use to assess our operating performance and the operating leverage in our business. We define Adjusted EBITDA as net income (loss), adjusted to exclude: depreciation and amortization; stock-based compensation expense; interest (income) expense; other (income)

expense, net; provision for income taxes; and other one-time, non-recurring items, when applicable, such as acquisition-related and restructuring expenses. For further explanation of the uses and limitations of this measure and a reconciliation of our Adjusted EBITDA to the most directly comparable GAAP measure, net income (loss), please see “Appendix A: Non-GAAP Financial Measures.”

The NEOs’ performance-based bonus awards for the fiscal year ended December 31, 2023 are tied to the achievement of these goals, as set forth below.

Fiscal Year Ended December 31, 2023 Bonus Payouts

In accordance with the target levels for the Performance Bonus Plan approved in 2023 as described above, the NEOs were awarded 103% of their target bonus amounts. This was based on the achievement of an Adjusted EBITDA loss of $18 million, which exceeded our stretch goal of no more than a $25 million Adjusted EBITDA loss resulting in a payout of the component based on Adjusted EBITDA at 150% of target and the achievement of $481 million of GAAP revenue exceeding our revenue threshold of $480 million resulting in a payment of the component based on GAAP revenue at 56% of target. Adjusted EBITA achievement (at 150%) and revenue achievement (at 56%) each account for 50% of the bonus. These bonuses were paid out in RSUs that vested upon grant on February 23, 2024. The number of fully vested RSUs granted to the applicable NEO in satisfaction of the amount payable under the Performance Bonus Plan was determined by dividing the earned performance bonus amount payable (expressed as a dollar value) by the 30-day trailing average closing price of our common stock as of February 9, 2024 pursuant to our 2021 Plan.

Equity Awards

We view long-term incentive compensation in the form of equity awards to be a critical element of our executive compensation program. The realized value of these equity awards bears a direct relationship to our stock price, and, therefore, these awards are an incentive for our executive officers, including our NEOs, to create value for our stockholders. Equity awards also help us retain qualified management in an increasingly competitive market.

Long-term incentive compensation opportunities in the form of equity awards are granted to our NEOs other than our Chief Executive Officer by the Compensation Committee. The Compensation Committee recommends, and the Board of Directors approves, equity awards made to our Chief Executive Officer. As with other elements of compensation, the Compensation Committee determines or recommends, as applicable, the amount of long-term incentive compensation for our NEOs as part of its annual compensation review and after taking into consideration the individual NEO’s responsibilities and performance and existing equity retention profiles, our total annual projected equity budget and the other factors described in “Factors Used in Determining Executive Compensation” above. For awards to NEOs other than the Chief Executive Officer, the Compensation Committee also takes into account the recommendations of the Chief Executive Officer with respect to appropriate grants and any particular individual circumstances. The amounts of the equity awards are intended to provide competitively sized awards and resulting target total direct compensation opportunities that the Compensation Committee believes are reasonable and appropriate taking into consideration the factors described herein.

Our equity award program is the primary vehicle for offering long-term incentives to our NEOs. We believe that equity awards provide our NEOs with a strong link to our long-term performance, create an ownership culture and help to align the interests of our executive officers and our stockholders. To date, we have used stock options and RSU awards as our primary long-term incentive compensation vehicle because we believe they are an effective means by which to align the long-term interests of our executive officers with those of our stockholders. We also believe that our equity awards are an important retention tool for our NEOs, as well as for our other employees.

Prior to our initial public offering in March 2021, we granted certain members of our management team, including our NEOs, long-term incentive compensation in the form of stock options to purchase shares of our Class B common stock. For the fiscal year ending December 31, 2023, we granted only RSUs to our NEOs. The Compensation Committee determined that our 2023 equity awards for our executive officers, including our named executive officers, would be comprised solely of RSU awards. The Compensation Committee believes that RSUs reward performance and deliver retention incentives over the long-term. RSUs cover fewer shares than stock options to deliver a similar value to our NEOs and, as a result, enable us to minimize dilution to stockholders. The Compensation Committee considers RSU awards to be performance-based because they provide a return

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directly in line with our stock price performance and align our executive officers’ interests with those of our stockholders. Equity awards are granted to our NEOs and other employees in the discretion of our Compensation Committee (and Board of Directors, in the case of the CEO) and are not made at any specific time during a year, but we have typically granted equity awards to our NEOs in March or April. Our Compensation Committee has discretion whether to grant equity awards to the NEOs in any given year, and our Board of Directors has discretion whether to grant equity awards to the CEO in any given year.

In March 2023, we granted each of Mr. Chamoun, Mr. Zerella, Mr. Mehta, Mr. Waterman, and Mr. Anderson RSUs, representing a contingent right to receive 420,000 shares, 200,000 shares, 200,000 shares, 200,000 shares, and 150,000 shares, respectively, of our Class A common stock under our 2021 Plan. In an effort to use the equity as a long-term incentive and to bring our executives in line with market data related to compensation from comparable companies, we provided our executives these RSU grants.

The RSUs awarded in 2023 to the NEOs vest in 16 equal quarterly installments beginning on July 1, 2023, subject to the NEO’s continued service with us as of each such date.

Prior to our initial public offering in March 2021, all of the equity awards we have granted were made pursuant to our 2015 Long-Term Incentive Plan (“2015 Plan”). Following our initial public offering, all of the equity awards we have granted been made under the terms of our 2021 Plan.

Employee Stock Purchase Plan

Effective March 23, 2021, we adopted the ACV Auctions Inc. 2021 Employee Stock Purchase Plan (the “2021 ESPP”), which became effective on the date of the underwriting agreement related to the IPO. We offer all eligible U.S.-based employees, including eligible NEOs, the opportunity to purchase shares of the Company’s Class A common stock pursuant to purchase rights granted to employees under the 2021 ESPP. The price at which Class A common stock is purchased under the 2021 ESPP is equal to 85% of the fair market value of the Company’s Class A common stock on the first or last day of the offering period, whichever is lower. The current offering period for the 2021 ESPP began on December 1, 2023 and will end on May 31, 2024. Mr. Mehta, Mr. Waterman and Mr. Anderson have elected to participate in the 2021 ESPP.

Other Features of Our Executive Compensation Program

Agreements with Our NEOs

Each of our NEOs has entered into a form of confirmatory offer letter, which has no specific term and provides for at-will employment. The offer letter supersedes and replaces the terms of any previous employment agreement. The offer letter provides for base salary, target bonus expressed as a percentage of base salary (to be determined in the sole discretion of the Company) and eligibility for participation in the Severance and Change in Control Plan (“Severance Plan”), described below.

In addition, each of our NEOs has executed our standard employee covenants agreement governing the protection of confidential information, intellectual property and inventions, which provides for a non-compete obligation and non-solicitation of employees, consultants, contractors, customers or potential customers for one year after termination of employment for any reason.

Severance and Change in Control Plan

We maintain a Severance Plan in which our NEOs, and certain other employees, participate, at the discretion of our Compensation Committee. The purpose of the Severance Plan is to mitigate the distraction and uncertainty caused by the prospect of job loss, whether or not in connection with a change in control.

The Severance Plan provides that upon a termination of an eligible participant’s employment with us that is effected by us without “cause”, as defined in the Severance Plan (or as otherwise provided in an individual participation agreement), outside of the change in control period, an eligible participant will be entitled to receive, subject to, among other things, the execution, delivery and effectiveness of a customary release of claims in our favor, (1) a cash payment equal to nine months (or 12 months for the Chief Executive Officer) of such eligible participant’s annual base salary then in effect (based on the employee designation of the participant) and (2) continued payment of premiums for the eligible participant’s continued coverage under our health insurance plans for a period of time (either nine months for most of the NEOs or 12 months for the Chief Executive Officer). The Chief Executive Officer is additionally entitled to receive such severance benefits if he resigns for “good reason.”

The Severance Plan also provides that upon a termination of an eligible participant’s employment with us that is effected by us without “cause” within the change in control period, which is three months prior to the closing and 12 months after the closing of a change in control of our Company, the eligible participant will be entitled to receive, subject to, among other things, the execution, delivery and effectiveness of a customary release of claims in our favor, (1) a lump sum cash payment equal to 12 months (or 18 months for the Chief Executive Officer) of such eligible participant’s annual base salary then in effect (based on the employee designation of the participant), (2) an additional lump sum cash payment equal to either 100% or 150% (for the Chief Executive Officer)) of the annual target cash bonus for the year in which the termination occurs, (3) continued payment of premiums for the eligible participant’s continued coverage under our health insurance plans for a period of time (either