UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

BIGCOMMERCE HOLDINGS, INC.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

11305 Four Points Drive, Building II, Suite 100

Austin, Texas 78726

LETTER TO STOCKHOLDERS

April 3, 2023

Dear Stockholder:

You are cordially invited to attend this year’s annual meeting of stockholders of BigCommerce Holdings, Inc. on May 18, 2023, at 8:00 a.m. Central Time. The annual meeting will be a completely “virtual” meeting. You will be able to attend the annual meeting, as well as vote and submit your questions during the live webcast of the meeting, by visiting www.virtualshareholdermeeting.com/BIGC2023 and entering the company number and control number included on your proxy card or in the instructions that accompany your proxy materials.

Details regarding admission to the annual meeting and the business to be conducted at the annual meeting are described in the accompanying Notice of Annual Meeting of Stockholders and Proxy Statement.

Whether or not you plan to attend the annual meeting, your vote is important and we encourage you to vote promptly. You may vote by either marking, signing and returning the enclosed proxy card or using telephone or internet voting. For specific instructions on voting, please refer to the instructions on your enclosed proxy card. If you attend the annual meeting you will have the right to revoke the proxy and vote your shares virtually at the meeting. If you hold your shares through an account with a brokerage firm, bank or other nominee, please follow the instructions you receive from your brokerage firm, bank or other nominee to vote your shares.

Sincerely yours,

BRENT BELLM

CHAIRMAN, CHIEF EXECUTIVE OFFICER

AND PRESIDENT

BIGCOMMERCE HOLDINGS, INC.

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD MAY 18, 2023

In accordance with rules and regulations adopted by the Securities and Exchange Commission, we have elected to furnish our proxy materials to stockholders by providing access to the materials on the Internet. Accordingly, a Notice of Internet Availability of Proxy Materials (the Internet Availability Notice) has been mailed to the majority of our stockholders, while other stockholders have instead received paper copies of the documents accessible on the Internet. It is important that your shares be represented and voted whether or not you plan to attend the annual meeting. If you are the registered holder of your shares and are viewing the proxy statement on the Internet, you may grant your proxy electronically via the Internet by following the instructions on the Internet Availability Notice previously mailed to you and the instructions listed on the Internet site. If you are receiving a paper copy of the proxy statement, you may vote by completing and mailing the proxy card enclosed with the proxy statement, or you may grant your proxy electronically via the Internet or by telephone by following the instructions on the proxy card. If your shares are held in “street name,” which means your shares are held of record by a broker, bank or other nominee, you should review the Notice of Internet Availability of Proxy Materials used by that firm to determine whether and how you will be able to submit your proxy by telephone or over the Internet. Submitting a proxy over the Internet, by telephone or by mailing a proxy card will ensure your shares are represented at the annual meeting. A list of stockholders entitled to vote at the annual meeting will be available for examination by stockholders of record at www.virtualshareholdermeeting.com/BIGC2023 during the annual meeting.

BIGCOMMERCE HOLDINGS, INC.

BY ORDER OF THE BOARD OF DIRECTORS

BRENT BELLM

CHAIRMAN, CHIEF EXECUTIVE OFFICER AND

PRESIDENT

Austin, Texas

Dated: April 3, 2023

TABLE OF CONTENTS

Table of Contents

BIGCOMMERCE HOLDINGS, INC.

11305 Four Points Drive, Building II, Suite 100

Austin, Texas 78726

PROXY STATEMENT SUMMARY

This proxy statement (the “Proxy Statement”) is furnished in connection with the solicitation of proxies by the Board of Directors (the “Board of Directors” or the “Board”) of BigCommerce Holdings, Inc., a Delaware corporation, for use at the Annual Meeting of Stockholders. This Proxy Statement and related materials are first being mailed to stockholders on or about April 3, 2023. References in this Proxy Statement to “we,” “us,” “our,” or the “Company” refer to BigCommerce Holdings, Inc. and its consolidated subsidiaries, and references to the “Annual Meeting” are to the 2023 annual meeting of stockholders. When we refer to the Company’s fiscal year, we mean the annual period ended on December 31, 2022. This Proxy Statement covers our 2022 fiscal year, which was from January 1, 2022 through December 31, 2022, or fiscal 2022. Certain information contained in this Proxy Statement is incorporated by reference into Part III of our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, as filed by the Company with the U.S. Securities and Exchange Commission, or SEC, on March 1, 2023.

This summary highlights information contained elsewhere in this Proxy Statement and does not contain all of the information that you should consider. You should read the entire Proxy Statement carefully before voting.

Our Annual Meeting

At the Annual Meeting, the stockholders of the Company will be asked to vote on the three proposals below. Your vote is very important. Accordingly, whether or not you plan to attend the Annual Meeting, you should vote by using one of the methods described in these proxy materials. You may vote your shares at the Annual Meeting by voting via the Internet or by telephone as described in these proxy materials or by having your shares represented at the Annual Meeting by a valid proxy. If your shares are not registered directly in your name (e.g., you hold your shares in a stock brokerage account or through a bank or other holder of record), you may vote by following the instructions detailed on the notice or voting instruction form you receive from your broker or other nominee. A list of all stockholders entitled to vote at the Annual Meeting will be available for inspection at our executive offices.

Any stockholder who executes and delivers a proxy has the right to revoke it at any time before it is exercised by delivering to the Secretary of the Company an instrument revoking it or a duly executed proxy bearing a later date, or by attending the Annual Meeting and voting. Subject to revocation, the proxy holders will vote all shares represented by a properly executed proxy received in time for the Annual Meeting in accordance with the instructions on the proxy. If no instruction is specified with respect to a matter to be acted upon, the shares represented by the proxy will be voted in accordance with the recommendation of the Board of Directors.

The expenses of preparing, assembling, printing and mailing the Internet Availability Notice, this Proxy Statement and the materials used in the solicitation of proxies will be borne by the Company. Proxies will be solicited through the Internet and the mail and may be solicited by our officers, directors and employees in person or by telephone, email or facsimile. They will not receive

1

Table of Contents

additional compensation for this effort. We do not anticipate paying any compensation to any other party for the solicitation of proxies, but may reimburse brokerage firms and others for their reasonable expenses in forwarding solicitation material to beneficial owners. The Company may retain the services of a proxy solicitation firm if, in the Board’s view, it is deemed necessary or advisable. Although the Company does not currently expect to retain such a firm, it estimates that the fees of such firm could be up to $20,000, plus out-of-pocket expenses, all of which would be paid by the Company.

Quorum Requirements

In order to constitute a quorum for the conduct of business at the Annual Meeting, a majority of the shares of the Common Stock entitled to vote at the Annual Meeting must be present at the meeting or represented by proxy. Shares represented by proxies that reflect abstentions or broker non-votes will be counted as shares that are present and entitled to vote for purposes of determining the presence of a quorum.

Required Vote

Each share of our Common Stock outstanding on the record date is entitled to one vote on each of the two director nominees. Each share of our Common Stock outstanding on the record date is entitled to one vote on each other matter. For the election of directors, the nominees to serve as directors will be elected by a plurality of the votes cast by the stockholders entitled to vote at the election. You may vote “For All,” “Withhold All,” or “For All Except,” with respect to the director nominees. Votes that are withheld will be excluded entirely from the vote with respect to the nominee from which they are withheld and will have no effect on the election of directors. With respect to Proposals 2 and 3, approval of each proposal requires the affirmative vote of a majority in voting power of the shares in attendance at the meeting or represented by proxy and entitled to vote on the matter. Abstentions will have the same effect as a vote against each of Proposals 2 and 3.

For Proposal 3, the advisory vote to approve the compensation of our named executive officers (say-on-pay vote), because your vote is advisory, it will not be binding on the Company, our Board or our Compensation Committee. However, the Board and the Compensation Committee will consider the outcome of the vote when making future executive compensation decisions to the extent appropriate.

Broker non-votes occur when a beneficial owner of shares held in “street name” does not give instructions to the broker, bank or other nominee holding the shares as to how to vote on matters deemed “non-routine” by stock exchange rules and regulations. Proposal 2 regarding ratification of the appointment of our independent auditors is a routine matter. If your shares are held in an account at a bank or brokerage firm, that bank or brokerage firm may vote your shares of common stock on Proposal 2. Accordingly, we do not expect there to be any broker non-votes for Proposal 2. However, if your shares are held in an account at a bank or brokerage firm, that bank or brokerage will not be permitted to vote your shares of common stock with respect to Proposal 1 or Proposal 3, unless you provide instructions as to how your shares should be voted. Accordingly, we encourage you to vote promptly, even if you plan to attend the virtual Annual Meeting. In tabulating the voting results for any particular proposal, shares that constitute broker non-votes are not considered entitled to vote on that proposal. Broker non-votes, if any, will have no effect on the outcome of either Proposal 1 or Proposal 3.

2

Table of Contents

Additional Information Regarding the Internet Availability of Our Proxy Materials

We are pleased to take advantage of SEC rules that allow companies to furnish their proxy materials over the Internet. Accordingly, we sent to the majority of our stockholders an Internet Availability Notice regarding the Internet availability of the proxy materials for this year’s annual meeting. Other stockholders were instead sent paper copies of the proxy materials accessible on the Internet. Instructions on how to access the proxy materials over the Internet or to request a paper copy can be found in the Internet Availability Notice. In addition, stockholders may request to receive proxy materials in printed form by mail or electronically by email on an ongoing basis by going to www.proxyvote.com and following the instructions or calling 1-800-579-1639. A stockholder’s election to receive proxy materials by mail or e-mail will remain in effect until the stockholder terminates or changes such election.

Please note that you cannot vote your shares by filling out and returning the Internet Availability Notice. The Internet Availability Notice does, however, include instructions on how to vote your shares.

If your shares are registered directly in your name with our transfer agent, you are considered, with respect to those shares, the “stockholder of record.” In that case, either the Internet Availability Notice or the Notice of Annual Meeting, this Proxy Statement and our Annual Report on Form 10-K for the fiscal year ended December 31, 2022 have each been sent directly to you.

If your shares are held in a stock brokerage account or by a bank or other holder of record, you are considered the “beneficial owner” of shares held in street name. In such case, either a notice similar to the Internet Availability Notice or the Notice of Annual Meeting, this Proxy Statement and our Annual Report on Form 10-K for the fiscal year ended December 31, 2022 should have been provided (or otherwise made available) to you by your broker, bank or other holder of record who is considered, with respect to those shares, the stockholder of record. As the beneficial owner, you have the right to direct your broker, bank or other holder of record on how to vote your shares by following their instructions for voting.

3

Table of Contents

PROPOSAL 1: ELECTION OF TWO DIRECTORS

General

Our Seventh Amended and Restated Certificate of Incorporation (our “Certificate of Incorporation”) provides for a classified board of directors consisting of three classes of directors, with each class serving staggered three-year terms and a nearly equal number of board members in each class, as determined by our Board. As a result, a portion of our Board of Directors will be elected each year. Our Board of Directors has nominated Mr. Donald E. Clarke and Ms. Ellen F. Siminoff as Class III directors with a term that would expire at the 2026 annual meeting of stockholders. Messrs. Brent Bellm, Lawrence Bohn and Jeff Richards have been designated Class I directors, and their term expires at the 2024 annual meeting of stockholders. Ms. Sally Gilligan and Mr. Satish Malhotra have been designated Class II directors, and their term expires at the 2025 annual meeting of stockholders.

On the recommendation of the nominating and corporate governance committee of our Board of Directors, our Board of Directors, including its independent directors, selected and approved Mr. Donald E. Clarke and Ms. Ellen F. Siminoff as nominees for election as Class III directors, the class being elected at the Annual Meeting, each to serve for a term of three years, expiring at the 2026 annual meeting of the stockholders or until his or her successor is duly appointed or elected and qualified or until his or her earlier death, resignation or removal. We are not aware of any arrangements or understandings between the director nominees and any other person pursuant to which such persons were selected as a director nominee.

Mr. Donald E. Clarke and Ms. Ellen F. Siminoff currently serve as members of our Board of Directors and have agreed to serve if elected. In the event the nominees named herein are unable to serve or decline to serve at the time of the Annual Meeting, the persons named in the enclosed proxy will exercise discretionary authority to vote for substitutes. Unless otherwise instructed, the proxy holders will vote the proxies received by them FOR the nominees. The proxy cannot be voted for a greater number of persons than the number of nominees named.

Recommendation of the Board of Directors

Our Board of Directors unanimously recommends that the stockholders vote FOR the election of the Class III director nominees, Donald E. Clarke and Ellen F. Siminoff. Unless otherwise instructed, the proxy holders will vote the proxies received by them FOR the election of all the Class III director nominees.

Directors and Nominees

The following table and biographical information sets forth certain information about Mr. Donald E. Clarke and Ms. Ellen F. Siminoff as well as the continuing directors. Such information is current as of April 3, 2023. The information presented below for each director includes the specific experience, qualifications, attributes and skills that led us to the conclusion that these directors should be nominated to serve on our Board of Directors in light of our business. There is no family relationship between any of our executive officers, directors, or director nominees.

Class I Directors

Brent Bellm has served as our president, chief executive officer, and the chairman of our board of directors since June 2015. Prior to joining our company as our chief executive officer, Mr. Bellm was the president and chief operating officer of HomeAway Inc., a vacation rental online marketplace, from July 2010 to June 2015. Previously, Mr. Bellm served in various capacities at PayPal Holdings, Inc. from December 2002 to July 2010, most recently as vice president of global product, and at eBay, Inc. as director of corporate strategy from April 2001 to December 2002. Mr. Bellm worked with McKinsey & Company from September 1993 to January 2000. Mr. Bellm holds a B.A. in International Relations and Economics from Stanford University and an M.B.A. from

4

Table of Contents

Harvard Business School. We believe Mr. Bellm is qualified to serve as a member of our board of directors due to his perspective as our president and chief executive officer.

Lawrence Bohn has been a member of our board of directors since July 2011. Mr. Bohn has served as a managing director of General Catalyst Partners, a venture capital firm, since April 2003. Prior to joining General Catalyst, Mr. Bohn served as the president, chief executive officer and chairman of the board of directors of NetGenesis Corp. and president of PC Docs, Inc. Mr. Bohn served on the boards of directors of HubSpot, Inc. and Demandware, Inc. from 2007 until October 2017 and 2004 until January 2016, respectively. He also currently serves on the board of directors of several privately-held companies. Mr. Bohn holds a B.A. in English from the University of Massachusetts, Amherst, and an M.A. in Linguistics from Clark University. We believe Mr. Bohn is qualified to serve as a member of our board of directors because of his executive leadership experience and extensive experience in the fields of cloud computing and SaaS.

Jeff Richards has been a member of our board of directors since May 2016. Mr. Richards has served as a managing partner at GGV Capital, a California-based venture capital firm, since 2010, after joining the firm in 2008. Prior to joining GGV Capital, Mr. Richards founded two technology companies: R4 Global Solutions, Inc., which was acquired by Verisign, Inc. in 2005, and QuantumShift Communications, Inc. Mr. Richards served as vice president of digital content services at Verisign, Inc. from May 2005 to May 2008. Previously, Mr. Richards was a management consultant with PricewaterhouseCoopers LLP from April 1995 to October 1997. He currently sits on the boards of directors of multiple private software and technology companies. Mr. Richards holds a B.A. in Government from Dartmouth College. We believe Mr. Richards is qualified to serve as a member of our board of directors due to his extensive experience with global technology companies.

Class II Directors

Sally Gilligan has been a member of our board of directors since July 2022. Ms. Gilligan has served as Chief Growth Transformation Officer for Gap Inc. since April 2021 and previously served in a variety of other roles for Gap Inc., including Chief Information Officer, Head of Strategy and SVP of Product Operations and Supply Chain Strategy, since joining the company in 2004. Prior to joining Gap Inc., Ms. Gilligan worked for over ten years in management consulting and financial services, including Boston Consulting Group and Andersen. Ms. Gilligan holds a B.S. in Business Administration from Georgetown University and an M.B.A from the University of Chicago. She has served as Chair of the Gap Foundation since 2021. We believe Ms. Gilligan is qualified to serve as a member of our board of directors due to her digital growth and transformation experience.

Satish Malhotra has been a member of our board of directors since July 2022. Mr. Malhotra has served as president and chief executive officer of The Container Store Group, Inc. since February 2021. For the previous 21 years, Mr. Malhotra held various leadership roles at prestige beauty retailer Sephora Americas, most recently as chief retail officer and chief operating officer from 2019 until his departure. Prior to that role, Mr. Malhotra served as chief operating officer from 2016 to 2019 and was responsible for technology, supply chain, store development, legal, strategy and partnerships, including the Sephora inside JCPenney business. He also spent several years overseeing Sephora's expansion into Canada and Latin America. Before joining Sephora, Mr. Malhotra was a transaction services senior associate at PricewaterhouseCoopers. Mr. Malhotra received his B.S. in Business Administration from the Haas School of Business at the University of California, Berkeley. Mr. Malhotra also holds an inactive Certified Public Accountant's license from the State of California. We believe Mr. Malhotra is qualified to serve as a member of our board of directors due to his executive leadership, operations and consumer retail experience.

Nominees for Election to the Board of Directors (Class III Directors)

Donald E. Clarke has been a member of our board of directors since December 2016. From January 2014 through December 2021, Mr. Clarke served as the chief financial officer for Plex Systems, Inc., a cloud technology company, and also held the position of its interim chief executive officer from October 2017 through November 2018. Previously, he served as the chief financial officer for Eloqua, Inc. from March 2008 to March 2013. Prior to working at Eloqua, Mr. Clarke served as chief financial officer for Cloakware, Inc. from August 2006 to February 2008 and for Visual Networks, Inc. from July 2004 to March 2006. Mr. Clarke has served as a member of the board of directors of Alarm.com Holdings, Inc. since May 2014. He is a member of the American Institute of Certified Public Accountants and holds a B.S. in Accounting from Virginia Polytechnic Institute and State University. We believe Mr. Clarke is qualified to serve as a member of our board of directors because of his experience in operations, strategy, accounting, and financial management at both publicly and privately held companies.

Ellen F. Siminoff has been a member of our board of directors since February 2020. Ms. Siminoff joined the board of Take-Two Interactive, Inc., a leading game developer, in May 2022, following Take-Two's combination with Zynga, where she served since June 2012. She also serves on the board of Follett Corporation, a partner of K-12 schools and districts, since August 2022, and Verifone, the pre-eminent global payments platform, since March 2021. Ms. Siminoff also serves on the President's Advisory Committee at Princeton University and on the Board of Overseers of the Hoover Institution at Stanford University. Ms. Siminoff's previous board experience includes Shmoop University, Inc., an educational publishing company, SolarWinds Inc., a provider of

5

Table of Contents

downloadable, enterprise-class network management software, Discovery Education, Inc., an educational curriculum provider, and Mozilla Corporation, the makers of Firefox browsers. She also served as a founding executive at Yahoo! from February 1996 to February 2002. Ms. Siminoff holds an A.B. degree in Economics from Princeton University and an M.B.A. from the Stanford Graduate School of Business. We believe Ms. Siminoff is qualified to serve as a member of our board of directors because of her experience as a long-tenured media and technology executive and board member.

CORPORATE GOVERNANCE

We are committed to continually enhancing our strong corporate governance practices, which we believe helps us sustain our success and build long-term value for our stockholders. Our Board of Directors sets high standards for our employees, officers and directors. Implicit in this philosophy is the importance of sound corporate governance. It is the duty of the Board of Directors to serve as a prudent fiduciary for shareholders and to oversee the management of the Company’s business. Our governance structure enables independent, experienced and accomplished directors to provide advice, insight, guidance and oversight to advance the interests of the Company and our stockholders.

Affirmative Determinations Regarding Director and Nominee Independence

Under the rules of Nasdaq, independent directors must comprise a majority of a listed company’s board of directors. In addition, the rules of Nasdaq require that, subject to specified exceptions, each member of a listed company’s audit, compensation, and nominating and corporate governance committee be independent. Audit committee members must also satisfy the independence criteria set forth in Rule 10A-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Under the rules of Nasdaq, a director will only qualify as an “independent director” if, in the opinion of that company’s board of directors, that person does not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director.

Based upon information requested from and provided by each director concerning his or her background, employment, and affiliations, including family relationships, our Board of Directors has determined that each of Lawrence Bohn, Donald E. Clarke, Sally Gilligan, Satish Malhotra, Jeff Richards, and Ellen F. Siminoff, representing six of our seven directors, do not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director and is “independent” as that term is defined under the rules of Nasdaq. In making this determination, our Board of Directors considered the relationships that each non-employee director has with us and all other facts and circumstances our Board of Directors deemed relevant in determining independence, including the beneficial ownership of our common stock by each non-employee director and the relationship of certain non-employee directors with certain of our significant stockholders.

Each member of our Board of Directors serving on our audit, compensation and nominating and corporate governance committees is “independent” within the meaning of the applicable rules of Nasdaq and, as applicable, the Exchange Act.

Background and Experience of Directors

Our nominating and corporate governance committee is responsible for reviewing with our Board of Directors, on an annual basis, the appropriate characteristics, skills and experience required for the board of directors as a whole and its individual members. In evaluating the suitability of individual candidates (both new candidates and current members), the nominating and corporate

6

Table of Contents

governance committee, in recommending candidates for election, and the Board of Directors, in approving (and, in the case of vacancies, appointing) such candidates, will take into account many factors, including the following:

Role of the Board in Risk Oversight

Our Board of Directors has an active role, as a whole and also at the committee level, in overseeing the management of our risks. Our Board of Directors is responsible for general oversight of risks and regular review of information regarding our risks, including credit risks, liquidity risks, and operational risks. The compensation committee is responsible for overseeing the management of risks relating to our executive compensation plans and arrangements. The audit committee is responsible for overseeing the management of risks relating to accounting matters, financial reporting, and privacy and cybersecurity. The nominating and corporate governance committee is responsible for overseeing the management of risks associated with the independence of our Board of Directors and potential conflicts of interest. Although each committee is responsible for evaluating certain risks and overseeing the management of such risks, the entire Board of Directors is regularly informed about such risks through discussions from committee members. We believe that our Board’s leadership structure supports effective risk management because it allows independent directors at the board level and on our committees to exercise oversight over management.

Our Board of Directors and audit committee jointly oversee our security organization, which is charged with mitigating the data privacy and cybersecurity risks that we face as a software-as-a-service platform, and recognize that data protection forms an important part of our risk management. The Board of Directors receives regular updates, not less than annually, from senior management and the Company’s subject matter experts in these areas to assess these risks. The Company takes a risk-based approach to security, and we maintain an information security management system in accordance with industry standards, including our annual ISO 27001 Certification. Our security organization regularly evaluates our product offerings, agreements, policies, investments, training, and staffing levels to enhance privacy compliance and cybersecurity and provides briefings to the Board of Directors and audit committee on these matters as necessary.

Board Leadership Structure

The Board of Directors does not have a policy regarding the separation of the roles of Chief Executive Officer and Chairman of the Board of Directors, as the Board of Directors believes it is in the best interests of the Company to make that determination based on the position and direction of the Company and the membership of the Board of Directors. The Board of Directors has determined that having the Company’s current Chief Executive Officer serve as Chairman is the best use of the Chief Executive Officer’s extensive knowledge of the Company and its industry and serves to foster greater communication between the Company’s management and the Board of Directors.

Lead Independent Director

As part of our continued efforts to ensure a strong, independent and active Board of Directors, we have designated a Lead Independent Director, who serves as the principal liaison between independent directors and the Chairperson and senior management, as well as the lead approver of all agendas, meetings and related information. We believe this role is integral to providing effective oversight of management and strong leadership of the independent directors. Mr. Richards currently serves as our lead independent director.

Attendance at Meetings

During the year ended December 31, 2022, our Board of Directors met six times. Each member of the Board of Directors attended at least 75 percent of the meetings of our Board of Directors and the meetings of any of our board committees on which each

7

Table of Contents

member of the Board of Directors served that were held during the term of each such director. Our Board of Directors and each of the board committees also acted by way of various unanimous written consents during the year ended December 31, 2022. In addition, the compensation committee, the audit committee and the Board of Directors met, at times, without management present in executive session.

Although we do not have a formal policy regarding attendance by members of our Board of Directors at our Annual Meeting of Stockholders, we encourage our directors to attend. In 2022, all members of our Board of Directors attended our Annual Meeting of Stockholders.

Board Committees

Our Board of Directors has established an audit committee, a compensation committee, and a nominating and corporate governance committee. The composition and responsibilities of each committee are described below. Our Board of Directors may also establish from time to time any other committees that it deems necessary or desirable. Members serve on these committees until their resignation or until otherwise determined by our Board of Directors.

The current composition of each board committee is set forth below.

✔ Member

C Chairperson

* Chairman of the Board

Audit committee

Our audit committee consists of Donald E. Clarke, Sally Gilligan, and Jeff Richards, each of whom our Board of Directors has determined satisfies the independence requirements for audit committee members under the listing standards of Nasdaq and Rule 10A-3 under the Exchange Act. Each member of our audit committee meets the financial literacy requirements under the rules and regulations of Nasdaq and the SEC. The chair of our audit committee is Mr. Clarke, who our Board of Directors has determined is an “audit committee financial expert” as defined by Item 407(d) of Regulation S-K. Our audit committee held six meetings in 2022.

Our audit committee is responsible for, among other things:

8

Table of Contents

Our audit committee operates under a written charter that satisfies the applicable listing standards of Nasdaq and is available on the investor relations section of our website at www.bigcommerce.com.

Compensation committee

Our compensation committee consists of Satish Malhotra, Ellen F. Siminoff, and Lawrence Bohn, with Mr. Bohn serving as chair. Our Board of Directors has determined that each of the compensation committee members is a non-employee member of our Board of Directors as defined in Rule 16b-3 under the Exchange Act and an outside director as that term is defined in Section 162(m) of the Code. The composition of our compensation committee meets the requirements for independence under the current listing standards of Nasdaq and current SEC rules and regulations. Decisions regarding the compensation of our executive officers have historically been made by the compensation committee. Our compensation committee held four meetings in 2022.

The compensation committee is responsible for, among other things:

Our compensation committee operates under a written charter that satisfies the applicable listing standards of Nasdaq and is available on the investor relations section of our website at www.bigcommerce.com.

Nominating and corporate governance committee

Our nominating and corporate governance committee consists of Ellen F. Siminoff, Jeff Richards, and Lawrence Bohn, with Ms. Siminoff serving as chair. The composition of our nominating and governance committee meets the requirements for independence under the current listing standards of Nasdaq and current SEC rules and regulations. Our nominating and corporate governance committee held four meetings in 2022.

The nominating and corporate governance committee is responsible for, among other things:

Our nominating and corporate governance committee operates under a written charter that satisfies the applicable listing standards of Nasdaq and is available on the investor relations section of our website at www.bigcommerce.com.

9

Table of Contents

Compensation committee interlocks and insider participation

No member of our compensation committee is or has been a former or current executive officer or employee of the Company. During 2022, no member of our compensation committee had a relationship that must be described under the SEC rules relating to disclosure of related person transactions. None of our executive officers currently serves, or has served during the last completed fiscal year, as a member of the board of directors or compensation committee (or other committee performing equivalent functions) of any entity that has one or more executive officers serving on our Board of Directors or compensation committee.

Board Diversity Matrix

The table below provides certain information regarding the composition of our Board. Each of the categories listed in the below table has the meaning as it is used in Nasdaq Rule 5605(f) and related instructions.

Board Diversity Matrix (As of April 3, 2023)

The Company’s Director Nomination Process

As indicated above, our nominating and corporate governance committee oversees the director nomination process. This committee is responsible for assisting the Board of Directors in establishing minimum qualifications for director nominees, including qualities and skills that members of our Board of Directors are expected to possess. Under our nominating and corporate governance committee charter, these criteria include the following:

Our nominating and corporate governance committee identifies and evaluates individuals qualified to become members of our Board of Directors. Our nominating and corporate governance committee then recommends that our Board of Directors select the director nominees for the election at the next annual meeting of stockholders, or to fill vacancies on our Board of Directors occurring between annual meetings of the stockholders.

10

Table of Contents

We believe it is important to have an appropriate mix of diversity for the optimal functionality of the Board of Directors. Our nominating and corporate governance committee charter requires that the committee consider each candidate’s qualities and skills and our nominating and corporate governance committee considers each candidate’s background, diversity, ability, judgment, skills and experience in the context of the needs and current make-up of the Board of Directors when evaluating director nominees. The Board of Directors believes it is important for each member of the Board of Directors to possess skills and knowledge in the areas of leadership of large, complex organizations; finance; strategic planning; laws and regulations; government relations; and relevant industries, especially the ecommerce space. These considerations help ensure that the Board of Directors as a whole has the appropriate mix of diversity, characteristics, skills and experiences for the optimal functioning of the Board of Directors in its oversight of our Company. As part of its periodic self-assessment process, the nominating and corporate governance committee reviews and evaluates its performance, including overall composition of the Board of Directors and the criteria that it uses for selecting nominees in light of the specific skills and characteristics necessary for the optimal functioning of the Board of Directors in its oversight of our Company. The nominating and corporate governance committee considers all of the criteria described above, including the candidate’s diversity, in identifying and selecting nominees and in the future may establish additional minimum criteria for nominees.

In 2023, proxy advisory firm Glass Lewis transitioned from a fixed numerical approach to a percentage-based approach for board gender diversity. Previously it would generally recommend voting against the chair of the nominating committee of a board with fewer than two gender diverse directors. Now it generally recommends voting against the chair of the nominating committee of a board that is not at least 30 percent gender diverse. The chair of our nominating and corporate governance committee, Ms. Siminoff, has been a director since 2020. Since joining the Board of Directors, she has contributed substantially towards the Board’s initiatives to improve diversity, including by recommending for appointment Sally Gilligan and Satish Malhotra, two well-qualified and diverse directors who joined our Board of Directors in July 2022, and participating actively in the search and hiring of the Company’s vice president of diversity, equity and inclusion in 2021. Furthermore, Ms. Siminoff herself contributes to the diversity of our Board of Directors. Two of our six outside directors, or 33.33 percent, of our Board of Directors, are gender diverse.

The other Class III director standing for election, Mr. Clarke, has been a director since 2016. He is the chair of our audit committee, where he also serves as the committee’s only “audit committee financial expert,” a NASDAQ requirement. Both Ms. Siminoff’s and Mr. Clarke’s leadership and experience have been extremely valuable to the Board of Directors over many years. For the reasons described above, we respectfully ask you to vote “FOR” Proposal 1 in favor of the re-election of both Ms. Siminoff and Mr. Clarke.

The nominating and corporate governance committee will consider nominees for the Board of Directors who are recommended by stockholders who meet the eligibility requirements for submitting stockholder proposals for inclusion in the Company’s next proxy statement. If an eligible stockholder wishes to recommend a nominee, he or she should submit such recommendation in writing to the Chair, nominating and corporate governance committee, c/o Secretary of the Company, Jeff Mengoli, BigCommerce Holdings, Inc., 11305 Four Points Drive, Building II, Suite 100, Austin, Texas 78726, by the deadline for stockholder proposals set forth in the Company’s last proxy statement, specifying the information required by the nominating and corporate governance committee charter. Any recommendations should include whatever supporting material the stockholder considers appropriate in support of that recommendation and must include the information that would be required to be disclosed under the SEC’s rules in a proxy statement soliciting proxies for the election of such candidate and a signed consent of the candidate to serve as our director, if elected. All such recommendations will be brought to the attention of the nominating and corporate governance committee, and the nominating and corporate governance committee shall evaluate such director nominees in accordance with the same criteria applicable to the evaluation of all director nominees.

Director Compensation

The information contained in “Executive Compensation—Director Compensation” is incorporated herein by reference.

Shareholder Engagement

Management and directors engage with our stockholders throughout the year in a variety of forums. Our interactions cover a broad range of governance and business topics, including proxy access, board elections, compensation practices, peer group composition and business strategy. Our engagement activities and meaningful exchanges to which we have been exposed provide us with a valuable understanding of our shareholders’ perspectives and an opportunity to share views with them. We look forward to maintaining an open line of dialogue with our shareholders.

We encourage you to visit the Corporate Governance area of the “Investor Relations” section of our website (https://investors.bigcommerce.com/corporate-governance/governance-overview) where you will find detailed information about our corporate governance practices and policies, including our nominating and corporate governance committee charter.

11

Table of Contents

Communications with Directors

Stockholders who would like to send communications to our Board of Directors, any board committee or to any individual director may do so by submitting such communications to Jeff Mengoli, c/o BigCommerce Holdings, Inc., 11305 Four Points Drive, Building II, Suite 100, Austin, Texas 78726. We suggest, but do not require, that such submissions include the name and contact information of the stockholder making the submission and a description of the matter that is the subject of the communication. Mr. Mengoli will then distribute such information to our Board of Directors for review. Communications received by the Company may be reviewed by Mr. Mengoli to ensure appropriate and careful review of the matter.

Code of Ethics and Conduct

We have adopted a code of ethics and business conduct that applies to all employees, including employees of our subsidiaries, as well as each member of our Board of Directors. The code of ethics and business conduct is available at our website at https://investors.bigcommerce.com/corporate-governance/governance-overview.

We intend to satisfy any disclosure requirement under Item 5.05 of Form 8-K regarding an amendment to, or waiver from, a provision of this code of ethics by posting such information on our website, at the address specified above.

12

Table of Contents

PROPOSAL 2: RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The audit committee is directly responsible for the appointment, compensation, retention and oversight of the independent external audit firm retained to audit the Company’s financial statements. Our audit committee has selected Ernst & Young LLP, or Ernst & Young, to serve as our independent registered public accounting firm to audit the consolidated financial statements of BigCommerce Holdings, Inc. for the fiscal year ending December 31, 2023. As a matter of good corporate governance, we are asking the stockholders to ratify the selection of Ernst & Young LLP (“EY”) as our independent registered public accounting firm for the year ending December 31, 2023. The affirmative vote of a majority of the Common Stock having voting power present in person or represented by proxy and entitled to vote will be required to ratify the selection of EY.

Stockholders are not required to ratify the appointment of EY as our independent registered public accounting firm. If stockholders fail to ratify the appointment, the audit committee will consider whether or not to retain EY. Even if the appointment is ratified, the audit committee may direct the appointment of a different independent registered public accounting firm at any time during the year if it determines that such a change would be in the best interests of the Company and our stockholders.

Ernst & Young has served as our auditor since 2012. A representative of Ernst & Young is expected to be present virtually at the Annual Meeting to respond to appropriate questions and make a statement if he or she so desires.

Principal Accountant Fees and Services

The following table sets forth the aggregate fees billed by Ernst & Young for the fiscal years ended December 31, 2022 and December 31, 2021:

(1) Audit Fees consisted of fees for audit services primarily related to the audit of our annual consolidated financial statements; the review of our quarterly consolidated financial statements; review of comfort letters, consents, and assistance with and review of other documents filed with the SEC; and other accounting and financial reporting consultation and research work billed as audit fees or necessary to comply with the standards of the Public Company Accounting Oversight Board (United States).

(2) Tax fees include fees for general tax advice and other general matters

Pre-Approval Policies

Our audit committee pre-approved all audit, audit-related, tax and other fees for services performed by our independent registered public accounting firm during 2022. The audit committee has adopted an Audit and Non-Audit Services Pre-Approval Policy (the “Audit Pre-Approval Policy”). The Audit Pre-Approval Policy provides for general pre-approval for a specified range of fees for certain categories of routine services to be provided during a given calendar year. This general pre-approval is automatically renewed at the beginning of each calendar year, unless otherwise determined by the audit committee. If the cost of any proposed service exceeds the amount for which general pre-approval has been established, specific pre-approval by the audit committee is required. Specific pre-approval of services is considered at the regular meetings of the audit committee. The Audit Pre-Approval Policy also establishes a list of prohibited non-audit services. In making all of its pre-approval determinations, the audit committee considers, among other things, whether such services are consistent with the rules promulgated by the Public Company Accounting Oversight Board (the “PCAOB”) and the SEC regarding auditor independence, whether the independent auditor is best positioned to provide the most effective and efficient service, and whether the service might enhance the Company’s ability to manage and control risk or improve audit quality. These and other factors are considered as a whole and no one factor is necessarily determinative.

Recommendation of the Board of Directors

Our Board of Directors unanimously recommends that the stockholders vote FOR the ratification of EY as the Company’s independent registered public accounting firm for the year ending December 31, 2023.

13

Table of Contents

AUDIT COMMITTEE REPORT

Our audit committee currently consists of three directors. Messrs. Clarke and Richards and Ms. Gilligan are each, in the judgment of the board of directors, an independent director. The audit committee acts pursuant to a written charter that has been adopted by the board of directors. A copy of the charter is available on the investor relations section of our website.

The audit committee oversees our financial reporting process on behalf of the board of directors. The audit committee is responsible for retaining our independent registered public accounting firm, evaluating its independence, qualifications and performance, and approving in advance the engagement of the independent registered public accounting firm for all audit and non-audit services. The audit committee’s specific responsibilities are set forth in its charter. The audit committee reviews its charter at least annually.

Management has the primary responsibility for the financial statements and the financial reporting process, including internal control systems, and procedures designed to ensure compliance with applicable laws and regulations. Our independent registered public accounting firm, Ernst & Young LLP, is responsible for expressing an opinion as to the conformity of our audited financial statements with generally accepted accounting principles.

The audit committee has reviewed and discussed with management the company’s audited financial statements. The audit committee has also discussed with Ernst & Young LLP all matters that the independent registered public accounting firm was required to communicate and discuss with the audit committee, including the applicable requirements of the Public Company Accounting Oversight Board (PCAOB) and the SEC. In addition, the audit committee has met with the independent registered public accounting firm, with and without management present, to discuss the overall scope of the independent registered public accounting firm’s audit, the results of its examinations, its evaluations of the company’s internal controls and the overall quality of our financial reporting.

The audit committee has received the written disclosures and the letter from the independent registered public accounting firm required by applicable requirements of the PCAOB regarding the independent registered public accounting firm’s communications with the audit committee concerning independence and has discussed with the independent registered public accounting firm its independence.

Based on the review and discussions referred to above, the audit committee recommended to our Board of Directors that the company’s audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

AUDIT COMMITTEE

Donald E. Clarke (Chair)

Sally Gilligan

Jeff Richards

Members of the Audit Committee

14

Table of Contents

EXECUTIVE OFFICERS

Below is biographical information for each of our current executive officers as of April 3, 2023, other than Brent Bellm (whose biographical information is shown under “Proposal 1: Election of Two Directors” on page 5). Each executive officer serves at the discretion of the Board of Directors and the Chief Executive Officer.

Robert Alvarez has served as our chief financial officer since October 2011. Prior to serving in this capacity, Mr. Alvarez served as the chief financial officer of LibreDigital, Inc. from June 2009 to September 2011. Previously, he served as the chief financial officer of Augmentix Corporation from February 2006 to March 2009. He serves as a member of the board of directors of AffiniPay. Mr. Alvarez holds a B.B.A. in Accounting from the University of Texas at Austin.

Lisa Eggerton has served as our chief marketing officer since July 2018. Prior to serving as our chief marketing officer, Ms. Eggerton worked in various capacities at Umbel Corp., a digital marketplace, from August 2015 to February 2018, where she most recently served as chief executive officer, and at Bazaarvoice, Inc. from December 2010 to February 2015, where she most recently served as chief marketing officer. She has served on a variety of boards. Ms. Eggerton holds a B.A. in English from Tulane University.

Brian Dhatt has served as our chief technology officer since October 2016. Prior to serving as our chief technology officer, Mr. Dhatt served as chief technology officer for Borderfree, Inc. from March 2013 to January 2016. Previously, Mr. Dhatt worked in various capacities at the Gilt Groupe from November 2010 to March 2013, most recently as a vice president of engineering and product. Mr. Dhatt holds a B.S. in Computer Science from Duke University.

Rob Kaloustian has served as our chief services officer since May 2021. Prior to serving as our chief services officer, Mr. Kaloustian served as Managing Director of Triple V Advisors from May 2020 to May 2021, and he worked for Commvault Systems, Inc., serving as senior vice president and general manager of its Metallic division from April 2019 to May 2020 and vice president of global sales and engineering, support, and services from April 2012 to April 2018. Mr. Kaloustian holds an M.A. in Business from Webster University, and a Bachelor’s degree in Electrical Engineering from University of Illinois at Chicago.

Russell Klein has served as our chief commercial officer since January 2018. Prior to serving as our chief commercial officer, Mr. Klein served as our senior vice president of corporate development from October 2015 to January 2018. Previously he was the co-founder and chairman of the board of directors of Librify Inc. from 2013 to 2015, and the co-founder and chief executive officer of Sendme, Inc. from May 2006 to December 2014. Mr. Klein holds a B.A. in Economics from the University of Pennsylvania and an M.B.A. from Harvard Business School.

Jeff Mengoli has served as our chief legal officer and secretary since July 2020. Prior to serving as our chief legal officer, Mr. Mengoli served as our general counsel beginning May 2016. Prior to serving as our general counsel, Mr. Mengoli worked with the Alibaba Group in various capacities from 2000 to 2016, including as general counsel for its United States subsidiaries. Mr. Mengoli was an associate at Wilson, Sonsini, Goodrich & Rosati LLP from 1997 to 1999 and an associate at Gibson, Dunn & Crutcher LLP from 1995 to 1997. Mr. Mengoli holds an A.B. in Economics from Harvard University and a J.D. from the University of California, Berkeley.

Marc Ostryniec has served as our chief sales officer since June 2020. Prior to serving as our chief sales officer, Mr. Ostryniec served as our senior vice president of sales beginning January 2019. Prior to serving as our senior vice president, Mr. Ostryniec worked for Experian plc, serving as the head of partner solutions sales from August 2016 to December 2018 and as the head of sales of CSIdentity from September 2011 to August 2016. Mr. Ostryniec holds a Bachelor of Science in Computer Engineering from Virginia Tech.

Thomas Aylor has served as our vice president, accounting and principal accounting officer since July 2020. Prior to joining BigCommerce, Mr. Aylor served as the chief financial officer of ProjectManager.com, a project management software provider, from September 2019 to July 2020. Previously, Mr. Aylor served as the chief financial officer of RetailMeNot, Inc., an online savings platform, from July 2017 to March 2019, and as its vice president, finance and principal accounting officer from August 2012 to July

15

Table of Contents

2017. Prior to joining RetailMeNot, Inc., Mr. Aylor spent twelve years at Ernst & Young LLP in a variety of roles. Mr. Aylor holds a Bachelor of Business Administration in Accounting from Texas State University.

16

Table of Contents

PROPOSAL 3: NON-BINDING, ADVISORY VOTE TO APPROVE THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS (SAY-ON-PAY VOTE)

In accordance with the requirements of Section 14A of the Exchange Act, we are asking our stockholders to consider and vote upon the resolution below to approve, on a non-binding, advisory basis, the compensation of our named executive officers (also referred to as “NEOs”) as disclosed in this Proxy Statement. This proposal, commonly known as a “say-on-pay” proposal, gives our stockholders the opportunity to express their views on our NEOs’ compensation. The Say-on-Pay Vote is not intended to address any specific item of compensation, but rather the overall compensation of our NEOs and the philosophy, policies and practices described in this Proxy Statement.

As described in detail in the “Compensation Discussion and Analysis” section of this Proxy Statement, the key objective in our executive compensation program is to attract, motivate, and reward leaders who create an inclusive and diverse environment and have the skills and experience necessary to successfully execute our strategic plan to maximize stockholder value.

Our executive compensation program is designed to:

Stockholders are encouraged to read the “Compensation Discussion and Analysis,” the accompanying compensation tables, and the related narrative disclosure contained in this Proxy Statement for a full description of our executive compensation programs.

This vote is advisory only and non-binding. However, the Board and the Compensation Committee will consider the outcome of this vote when making future executive compensation decisions to the extent appropriate. We currently ask our stockholders to approve, on a non-binding, advisory basis, the compensation of our NEOs on an annual basis, and we expect to hold the next such vote at our 2024 annual meeting of stockholders.

We believe that the Compensation Committee has developed a compensation program for our NEOs that motivates outstanding performance and rewards behavior that aligns management’s interest with those of stockholders. Accordingly, we ask our stockholders to vote “FOR” the following resolution at the Annual Meeting:

“NOW, THEREFORE, BE IT RESOLVED, that the stockholders of the Company approve, on a non-binding, advisory basis, the 2022 compensation of the Company’s named executive officers, as disclosed in the Compensation Discussion and Analysis, compensation tables and related narrative discussion of this Proxy Statement.”

17

Table of Contents

COMPENSATION DISCUSSION AND ANALYSIS

General

In this Compensation Discussion and Analysis (“CD&A”), we provide an overview and analysis of the compensation awarded to or earned by our named executive officers identified in the Summary Compensation Table below (each, an “NEO”) during fiscal 2022, including the elements of our compensation program for NEOs, material compensation decisions made under that program for fiscal 2022, and the material factors considered in making those decisions. Our NEOs for the year ended December 31, 2022, which consist of our principal executive officer, our principal financial officer, and our three other most highly compensated executive officers for fiscal year 2022, are:

Executive Summary

2022 Performance Highlights and Pay for Performance.

Our executive compensation programs are designed to deliver pay in accordance with corporate and individual performance, reward superior performance and provide consequences for underperformance. We believe that the compensation of our NEOs for fiscal year 2022 was aligned with the Company’s performance during 2022. Highlights of that performance, in a challenging year for the economy and sector, include:

In order to align pay with performance, a significant portion of our NEOs’ compensation is delivered in the form of equity awards and annual cash incentives, each of which depends on our actual performance.

For fiscal year 2022, approximately 84% of our NEOs’ total target compensation was in the form of stock options and restricted stock units (“RSUs”), which will vest based on continued service.

2022 Compensation Highlights. Consistent with our compensation philosophy, key compensation decisions for 2022 included the following:

18

Table of Contents

Compensation Governance and Best Practices. We are committed to having strong governance standards with respect to our compensation programs, procedures and practices. Our key compensation practices include the following:

Executive Compensation Objectives and Philosophy

The key objective in our executive compensation program is to attract, motivate, and reward leaders who create an inclusive and diverse environment and have the skills and experience necessary to successfully execute our strategic plan to maximize stockholder value. Our executive compensation program is designed to:

We strive to set our overall total compensation at a competitive level. Executives may be compensated above or below the targeted market position based on factors such as experience, performance, scope of position, and the competitive demand for proven executive talent, as described further below under “—Determination of Executive Compensation.”

Determination of Executive Compensation

Role of Compensation Committee and Executive Officers

The Compensation Committee is responsible for establishing and overseeing our executive compensation programs and annually reviews and determines the compensation to be provided to our NEOs.

In setting executive compensation, the Compensation Committee considers a number of factors, including the recommendations of our Chief Executive Officer (other than with respect to the Chief Executive Officer’s own compensation) and our human resources team, current and past total compensation, competitive market data and analysis provided by the Compensation Committee’s independent compensation consultant, Company performance and each executive’s impact on performance, each executive’s relative scope of responsibility and potential, each executive’s individual performance and demonstrated leadership, and internal equity pay considerations. Our Chief Executive Officer uses the benchmark peer data provided by the Compensation Committee’s compensation consultant to determine the size of equity-based awards, and adjusts each NEO’s equity grant value (other than his own) upwards or downwards from such peer data after considering the NEO’s role criticality and individual performance. Our Board makes decisions regarding our Chief Executive Officer’s compensation, following recommendation from the Compensation Committee.

Role of Compensation Consultant

The Compensation Committee has retained Aon-Radford (“Radford”) as an independent compensation consultant to provide executive compensation advisory services, help evaluate our compensation philosophy and objectives, design a competitive executive

19

Table of Contents

compensation program that will continue to attract top executive talent and reflect our compensation philosophy, and provide guidance in administering our executive compensation program. The Compensation Committee has evaluated Radford’s independence pursuant to the requirements of Nasdaq and SEC rules and has determined that Radford does not have any conflicts of interest in advising the Compensation Committee.

In consultation with Radford, in November 2021, our Compensation Committee selected our peer group as follows, focusing primarily on domestic, publicly-traded SaaS and e-commerce companies with annual revenue between $100 million and $650 million and market capitalization between $1.5 billion and $12 billion:

As of November 2021, as compared to such peer group, we were at the 55th percentile for net income for the preceding 12 months, the 34th percentile for operating income for the preceding 12 months, and the 34th percentile for 30-day average market cap. The peer group selected for 2022 reflected the following changes from our 2021 peer group:

In determining what changes to make to our peer group described above, the Compensation Committee removed five companies whose market values were outliers: Asana, Avalara, Bill.com, Hubspot, and Zendesk. Additions were made to balance out those companies that were removed and met most or all of the selection criteria. No changes were made to the selection criteria for sector, range multiples for revenue, market capitalization ranges, or location.

In December 2021, Radford provided an analysis of data derived from members of our peer group and the Radford Global Compensation Database survey, the constituent companies of which were not provided to the Compensation Committee. For 2022, the Compensation Committee used Radford’s analysis to help structure a competitive executive compensation program, position executive compensation by considering market data, and make individual compensation decisions based on comparable positions at companies with which we compete for talent. Although the Compensation Committee does not establish compensation levels solely based on a review of competitive data or benchmark to any particular level, it believes such data is a useful tool in its deliberations as our compensation policies and practices must be competitive in the marketplace for us to be able to attract, motivate, and retain qualified executive officers.

Our Compensation Committee and Chief Executive Officer, as applicable, used benchmark data as a foundational starting point to determine target compensation for each NEO, and then adjusted the targets based on the NEO’s role criticality and incumbent performance. The benchmark data utilized was from our approved peer group based on relevant sector, revenue, market capitalization, and location, and was ultimately approved by the Compensation Committee.

Elements of Compensation

The primary elements of our NEOs’ compensation and the main objectives of each are:

20

Table of Contents

In addition, our NEOs are eligible to participate in our health and welfare programs and our 401(k) plan on the same basis as our other employees. We also maintain severance and change in control arrangements, which aid in attracting and retaining executive talent and help executives to remain focused and dedicated during potential transition periods due to a change in control. Each of these elements of compensation for 2022 is described further below.

Base Salary

The base salaries of our NEOs are an important part of their total compensation package and are intended to reflect their respective positions, duties, and responsibilities. Base salary is a visible and stable fixed component of our compensation program. Base salaries provide our NEOs with a reasonable degree of financial certainty and stability. With the goal of positioning base salaries at the median of market, our Compensation Committee, and with respect to our Chief Executive Officer, the Board, annually reviews and determines the base salaries of our executives and evaluates the base salaries of new hires at the time of hire. In March 2022, our Compensation Committee, and with respect to our Chief Executive Officer, the Board, determined that the base salaries in effect for each of our NEOs were below the median of market and, accordingly, increased the base salaries for each of Messrs. Bellm, Alvarez, Klein and Dhatt and Ms. Eggerton from $450,000, $375,000, $335,000, $335,000 and $325,000 respectively to $475,000, $395,000, $375,000, $375,000 and $335,000 respectively. The base salaries in effect for our NEOs in 2022 were as follows:

Cash Incentive Compensation

Annual cash incentive bonuses are an important component of our total compensation program and provide cash incentives that we believe are necessary to retain executive officers. During 2022 each NEO was eligible to receive an annual performance-based cash bonus under our 2022 Executive Bonus Plan based on a specified target annual bonus amount, expressed as a percentage of the named NEO’s base salary. We aim to award annual cash incentive bonuses that are between the 25th and 50th percentiles of market. Accordingly, following our review of the target bonus levels for each of our NEOs in March 2022, we determined that, for fiscal year 2022, our NEOs’ target annual bonuses would not be adjusted from their 2021 levels. Our NEOs’ target annual bonuses for 2022 were equal to the following percentages of base salary:

At the beginning of 2022, the Board, considering the recommendations of the Compensation Committee and management, set the performance goals applicable to our 2022 annual bonus program. The performance goals established by the Board for our 2022 annual bonus program, and their respective weightings, were as follows:

For the year ended December 31, 2022, the Company attained its performance goals under its 2022 Executive Bonus Plan at 44% of target bonus. The 2022 Executive Bonus Plan, as originally approved, provided that no bonuses would be payable unless the Company attained its performance goals at a threshold that would result in a payment of 50% or more of target bonus. However, in light of the Company’s achievements in a challenging sector and macroeconomic environment and a performance that would otherwise have resulted in a payment at 44% of target bonus and in order to promote employee retention and recognize the contributions of the participants to the Company, the Compensation Committee exercised discretion under the plan to approve payments of bonuses at 44% of target for all participants (including the NEOs). The amounts of such bonuses paid to our NEOs in respect of 2022 are set forth in the column entitled “Bonus” in the “2022 Summary Compensation Table” below.

21

Table of Contents

Equity-Based Long-Term Incentive Awards

We view equity-based compensation as a critical component of our balanced total compensation program and aim to grant equity awards with target values between the 75th and 90th percentile of market. Equity-based compensation creates an ownership culture among our executives that provides an incentive to contribute to the continued growth and development of our business and aligns the interest of executives with those of our stockholders, reinforcing our commitment to ensuring a strong linkage between company performance and pay. In 2022, we granted 70% of our target equity award value in the form of RSUs and 30% in the form of options to purchase our Common Stock.

In 2022, we made the following grants of stock options and RSUs to our NEOs:

These grants were approved by the Compensation Committee in March 2022 following consideration of the factors set forth above under “—Determination of Executive Compensation.”

The stock options granted to our NEOs during 2022 vest as to 25% of the underlying shares on the first anniversary of the applicable vesting date and as to the balance of the underlying shares in 36 substantially equal monthly installments thereafter, subject to the applicable NEO’s continued service through the applicable vesting date. The RSU awards granted to our NEOs during 2022 vest as to 25% of the underlying shares on each of the first four anniversaries of the applicable vesting start date, subject to the applicable NEO’s continued service through the applicable vesting date.

Certain of our NEOs’ stock options and RSUs are subject to accelerated vesting in certain circumstances, as described below under “—Potential Payments Upon Termination or Change in Control”.

Retirement Savings, Health and Welfare Benefits

We maintain a 401(k) retirement savings plan for our employees, including our NEOs, who satisfy certain eligibility requirements. Our NEOs are eligible to participate in the 401(k) plan on the same terms as other full-time employees. The Internal Revenue Code (the “Code”) allows eligible employees to defer a portion of their compensation, within prescribed limits, on a pre-tax basis through contributions to the 401(k) plan. Currently, we do not match contributions made by participants in the 401(k) plan. We believe that providing a vehicle for tax-deferred retirement savings through our 401(k) plan adds to the overall desirability of our executive compensation package and further incentivizes our employees, including our NEOs, in accordance with our compensation policies.

Employee Benefits and Perquisites

All of our full-time employees, including our NEOs, are eligible to participate in our health and welfare plans, including medical, dental, and vision benefits, medical and dependent care flexible spending accounts, short-term and long-term disability insurance, and life insurance. We believe the benefits described above are necessary and appropriate to provide a competitive compensation package to our NEOs.

We do not currently provide perquisites to our NEOs, and we do not view perquisites or other personal benefits as a significant component of our executive compensation program. In the future, we may provide perquisites or other personal benefits in limited circumstances, such as where we believe it is appropriate to assist an individual executive officer in the performance of the executive’s duties, to make our executive officers more efficient and effective, and for recruitment, motivation, or retention purposes. All future practices with respect to perquisites or other personal benefits will be approved by the Compensation Committee.

We do not provide any tax “gross ups” to our NEOs.

Severance and Change in Control Arrangements

We provide for severance benefits and payments to each of our NEOs upon certain terminations without cause or resignations for good reason. Our Compensation Committee believes that these types of benefits are necessary to attract and retain executive talent

22

Table of Contents

and are a customary component of executive compensation. In particular, such benefits can mitigate a potential disincentive for our NEOs when they are evaluating a potential acquisition of the Company and can encourage retention through the conclusion of the transaction. Our severance and change in control payments and benefits are designed to be competitive with market practices. A description of these potential benefits, as well as information on the estimated payments and benefits that our NEOs would have been eligible to receive if a qualifying termination of employment or change in control had occurred on December 31, 2022, are set forth in “—Potential Payments Upon Termination or Change in Control” below.

Other Policies and Considerations

Stock Ownership Guidelines. We believe that stock ownership aligns the interests of our executive officers with our stockholders and encourages long-term management of the Company for the benefit of its stockholders. Accordingly, on February 18, 2022, the Compensation Committee recommended, and our Board of Directors adopted, stock ownership guidelines which apply to our senior leadership team. Under these guidelines, our senior leaders are required to acquire and maintain shares of our Common Stock having a value equal to the following multiples of their annual base salaries following the completion of a five-year phase-in period:

Derivatives Trading, Hedging, and Pledging Policies. Our Insider Trading Compliance Policy provides that no employee, officer, or director may engage in any activity of the type that is designed to profit from or hedge against decreases in the value of the Company’ securities, such as short sales, trading activity designed to profit from fluctuations in the price of the Company’s securities (such as day trading and arbitrage trading), hedging transactions, and trading in puts, calls or other derivative securities. In addition, our Insider Trading Compliance Policy provides that no employee, officer, or director may pledge Company securities as collateral to secure loans. This prohibition means, among other things, that these individuals may not hold Company securities in a “margin” account, which would allow the individual to borrow against their holdings to buy securities.

Section 409A. The Compensation Committee takes into account whether components of the compensation for our executive officers will be adversely impacted by the penalty tax imposed by Section 409A of the Code, and aims to structure these components to be compliant with or exempt from Section 409A to avoid such potential adverse tax consequences.

Section 162(m). Section 162(m) of the Code disallows a tax deduction to public companies for compensation in excess of $1 million paid to “covered employees”, which generally includes all NEOs. While the Compensation Committee may take the deductibility of compensation into account when making compensation decisions, the Compensation Committee will award compensation that it determines to be consistent with the goals of our executive compensation program even if such compensation is not deductible by us.

“Golden Parachute” Payments. Sections 280G and 4999 of the Code provide that certain executive officers and other service providers who are highly compensated or hold significant equity interests may be subject to an excise tax if they receive payments or benefits in connection with a change in control of the Company that exceeds certain prescribed limits, and that we, or a successor, may forfeit a tax deduction on the amounts subject to this additional tax. While the Compensation Committee may take the potential forfeiture of such tax deduction into account when making compensation decisions, it will award compensation that it determines to be consistent with the goals of our executive compensation program even if such compensation is not deductible by us. We do not provide any tax gross-ups to cover excise taxes under Section 4999 in connection with a change in control.

Accounting for Share-Based Compensation. We follow Financial Accounting Standard Board Accounting Standards Codification Topic 718, (“ASC Topic 718”), for our share-based compensation awards. ASC Topic 718 requires companies to measure the compensation expense for all share-based payment awards made to employees and directors, including stock options and RSUs, based on the grant date “fair value” of these awards. This calculation is performed for accounting purposes and reported in the compensation tables below, even though our NEOs may never realize any value from their awards.

23

Table of Contents

COMPENSATION COMMITTEE REPORT

The Compensation Committee reviewed and discussed the foregoing Compensation Discussion and Analysis with the Company’s management. Based on this review and discussion with management, the Compensation Committee recommended to the Board of Directors that the Compensation Discussion and Analysis be included in this Proxy Statement and incorporated by reference into the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, filed by us with the SEC.

This report of the Compensation Committee is not “soliciting material,” shall not be deemed “filed” with the SEC and shall not be incorporated by reference by any general statement incorporating by reference this Proxy Statement into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing, except to the extent that we specifically incorporate this information by reference, and shall not otherwise be deemed filed under such acts.

The foregoing report has been furnished by the Compensation Committee.

Respectfully submitted,

COMPENSATION COMMITTEE

Larry Bohn (Chair)

Satish Malhotra

Ellen Siminoff

Members of the Compensation Committee

24

Table of Contents

EXECUTIVE COMPENSATION TABLES

2022 Summary Compensation Table

The following table contains information about the compensation earned by each of our NEOs during the fiscal years ended December 31, 2022, 2021 and 2020.

(1) Amounts for fiscal year 2022 represent amounts paid to our NEOs in the Compensation Committee’s discretion based upon the level at which certain Company performance goals were attained under our annual bonus program for fiscal year 2022. For more information, please see “—Cash Incentive Compensation” above.

(2) Amounts reflect the full grant-date fair value of RSU awards and stock options granted during fiscal year 2022 computed in accordance with ASC Topic 718, rather than the amounts paid to or realized by the NEO. We provide information regarding the assumptions used to calculate the value of all RSU awards and stock option awards made to our NEOs in Note 11 to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2022.

25

Table of Contents

Grants of Plan-Based Awards in Fiscal 2022

The following table provides information regarding all grants of plan-based awards occurring during fiscal 2022. All stock options and RSUs were awarded under the BigCommerce Holdings, Inc. 2020 Equity Incentive Plan (the “2020 Plan”).

(1) Amounts reflect potential payouts under our 2022 annual bonus program. Please see the description of the annual bonus program under “—Cash Incentive Compensation” above.

(2) Represents RSUs which vest as to 25% of the underlying shares on each of the first four anniversaries of the applicable vesting start date, subject to the applicable NEOs continued service with the Company through the applicable vesting date.

(3) Represents stock options which vest over four years, with 25% of the shares vesting on the one-year anniversary of the applicable vesting start date, and as to the balance of the underlying shares, in 36 substantially equal monthly installments thereafter, subject to the applicable NEOs continued service with the Company through the applicable vesting date.

(4) Amounts reflect the grant-date fair value of the applicable award computed in accordance with ASC Topic 718. We provide information regarding the assumptions used to calculate these values in Note 11 to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2022.

26

Table of Contents

NARRATIVE TO SUMMARY COMPENSATION TABLE AND GRANTS OF PLAN-BASED AWARDS TABLE

Summary of Executive Compensation Arrangements

Each of our NEOs is party to an employment offer letter with us, as more fully described below, including with respect to amendments thereto. For information regarding the severance payments and benefits that our NEOs are eligible to receive pursuant to arrangements with us, please see “—Potential Payments Upon Termination or Change in Control” below.

Employment Offer Letter with Mr. Bellm

On May 29, 2015, we entered into an employment offer letter with Mr. Bellm, who currently serves as our President and Chief Executive Officer. Mr. Bellm’s employment offer letter provides for at-will employment and sets forth his annual base salary (which, during 2022, was $475,000), target bonus and initial stock option grants, as well as his eligibility to participate in our benefit plans generally. In connection with Mr. Bellm’s entrance into his employment offer letter, he also entered into our standard Proprietary Information and Inventions Agreement, which contains confidentiality and non-disclosure restrictions, non-competition and non-solicitation restrictions, and covenants regarding ownership of intellectual property.

Employment Offer Letter with Mr. Alvarez

On May 1, 2014, we entered into an employment offer letter with Mr. Alvarez, who currently serves as our Chief Financial Officer. Mr. Alvarez’s employment offer letter provides for at-will employment and sets forth his annual base salary (which, for 2022 was $395,000), target bonus and initial stock option grants, as well as his eligibility to participate in our benefit plans generally. In connection with Mr. Alvarez’s entrance into his employment offer letter, he also entered into our standard Proprietary Information and Inventions Agreement, which contains confidentiality and non-disclosure restrictions, non-competition and non-solicitation restrictions, and covenants regarding ownership of intellectual property.

Employment Offer Letter with Mr. Klein

On December 26, 2017, we entered into an employment offer letter with Russell Klein, who currently serves as our Chief Commercial Officer. Mr. Klein’s employment offer letter provides for at-will employment and sets forth his annual base salary (which, during 2022 was $375,000), target bonus and initial stock option grants, as well as his eligibility to participate in our benefit plans generally. In connection with Mr. Klein’s entrance into his employment offer letter, he also entered into our standard Proprietary Information and Inventions Agreement which contains confidentiality and non-disclosure restrictions, and covenants regarding ownership of intellectual property.

Employment Offer Letter with Mr. Dhatt

On September 9, 2016, we entered into an employment offer letter with Mr. Dhatt, who currently serves as our Chief Technology Officer. Mr. Dhatt’s employment offer letter provides for at-will employment and sets forth his annual base salary (which, during 2022 was $375,000), target bonus and initial stock option grants, as well as his eligibility to participate in our benefit plans generally. In connection with Mr. Dhatt’s entrance into his employment offer letter, he also entered into our standard Proprietary Information and Inventions Agreement which contains confidentiality and non-disclosure restrictions, non-competition and non-solicitation restrictions, and covenants regarding ownership of intellectual property.

Employment Offer Letter with Ms. Eggerton

On May 10, 2018, we entered into an employment offer letter with Lisa Eggerton, who currently serves as our Chief Marketing Officer. Ms. Eggerton’s employment offer letter provides for at-will employment and sets forth her annual base salary (which, during 2022 was $335,000), target bonus and initial stock option grants, as well as her eligibility to participate in our benefit plans generally. In connection with Ms. Eggerton’s entrance into her employment offer letter, she also entered into our standard Proprietary Information and Inventions Agreement which contains confidentiality and non-disclosure restrictions, and covenants regarding ownership of intellectual property.

27

Table of Contents

Outstanding Equity Awards at Fiscal Year-End Table

The following table summarizes the number of shares of Common Stock underlying outstanding equity incentive plan awards for each NEO as of December 31, 2022.