UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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

Check the appropriate box:

WAVE LIFE SCIENCES LTD.

(Name of Registrant as Specified In Its Charter)

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

WAVE LIFE SCIENCES LTD.

(Incorporated in the Republic of Singapore)

(Company Registration Number 201218209G)

NOTICE OF 2021 ANNUAL GENERAL MEETING OF SHAREHOLDERS

TIME: 11:00 a.m., Eastern Time

DATE: August 10, 2021

PLACE: Wave Life Sciences Ltd., 733 Concord Avenue, Cambridge, MA 02138

To Our Shareholders:

You are cordially invited to attend the 2021 Annual General Meeting of Shareholders of Wave Life Sciences Ltd. to be held at 11:00 a.m., Eastern Time, on Tuesday, August 10, 2021 at 733 Concord Avenue, Cambridge, MA 02138. In this Notice, we refer to the 2021 Annual General Meeting of Shareholders as the “2021 AGM” and we refer to Wave Life Sciences Ltd. as “Wave,” the “Company,” “we,” “us” and “our.” Details regarding the 2021 AGM, the business to be conducted at the 2021 AGM, and information about Wave Life Sciences Ltd. that you should consider when you vote your shares are described in the attached proxy statement. The 2021 AGM is subject to the evolving COVID-19 situation, and shareholders should note that we may be required or it may be advisable to change our meeting arrangements for the 2021 AGM on short notice. Shareholders should refer to Wave’s website at https://ir.wavelifesciences.com/ and/or its announcements for the latest updates on the status of the 2021 AGM.

The 2021 AGM will be held for the following purposes:

As Special Business

(Ordinary Resolution 1(a))

(Ordinary Resolution 1(b))

(Ordinary Resolution 1(c))

(Ordinary Resolution 1(d))

(Ordinary Resolution 1(e))

(Ordinary Resolution 1(f))

(Ordinary Resolution 1(g))

(Ordinary Resolution 1(h))

(Ordinary Resolution 1(i))

As Ordinary Business

(Ordinary Resolution 2)

(Ordinary Resolution 3)

As Special Business

(Ordinary Resolution 4)

at any time to and/or with such persons and upon such terms and conditions, for such purposes and for consideration as our directors may in their sole discretion deem fit, and with such rights or restrictions as our directors may think fit to impose and as are set forth in our Constitution; and

and that such authority, if approved by our shareholders, shall continue in effect until the earlier of the conclusion of our 2022 Annual General Meeting of Shareholders or the expiration of the period within which our 2022 Annual General Meeting of Shareholders is required by law to be held;

(Ordinary Resolution 5)

“RESOLVED, on a non-binding, advisory basis only, that the compensation paid to the named executive officers of the Company, as disclosed pursuant to the compensation disclosure rules of the Securities and Exchange Commission, including the Compensation Discussion and Analysis, the compensation tables and the related material disclosed in this proxy statement, is hereby APPROVED.”

This non-binding advisory resolution is being proposed to shareholders as required pursuant to the requirements of Section 14A of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The shareholders’ vote on this proposal is solely advisory and non-binding in nature, will have no legal effect for purposes of Singapore law and will not be enforceable against our Company or our Board of Directors; and

(Non-Binding Advisory Resolution 6)

The Board of Directors recommends the approval of each of the first six proposals.

All of the above proposals should be read in conjunction with the attached proxy statement, which sets out the specific parameters of the proposals.

Each of the matters to be voted on at the 2021 AGM (other than Proposal 6, which is the only non-binding advisory resolution) may be passed by ordinary resolution pursuant to our Constitution.

Notes About the Annual General Meeting of Shareholders

Eligibility to Vote at 2021 AGM. The Board of Directors has fixed the close of business on June 17, 2021 as the record date for determining those shareholders who will be entitled to receive copies of this Notice and the attached proxy statement. As of June 17, 2021, we had 50,313,394 ordinary shares issued and outstanding. However, under Singapore law, only registered holders of our ordinary shares (i.e., persons whose names appear on the Register of Members of the Company maintained in accordance with Section 190 of the Singapore Companies Act), or “shareholders of record,” on the date of the 2021 AGM, August 10, 2021, will be entitled to vote at the 2021 AGM. If you have sold or transferred any of your ordinary shares after June 17, 2021 and prior to the 2021 AGM, you should immediately forward this Notice and the attached proxy statement and proxy card to the purchaser or transferee of such shares, or to the bank, broker or agent through whom the sale of such shares was effected, for onward transmission to the purchaser or transferee. If you hold shares other than in registered form as a shareholder of record, and instead hold your shares as, or through, a participant in DTC (i.e., in “street name”), we understand that in order for your vote to be counted at the 2021 AGM, you must also have been a holder of shares on the date of the 2021 AGM, August 10, 2021.

Proxies. All shareholders of record as of the date of the 2021 AGM are cordially invited to attend the 2021 AGM or appoint a proxy to attend and vote in their place (referred to as a “legal proxy”). A legal proxy need not also be a shareholder of record. Whether or not you plan to attend the 2021 AGM, we urge you to vote and submit your proxy card by mail in order to ensure the presence of a quorum. A proxy card must be received by Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717 not less than 48 hours before the time appointed for holding the 2021 AGM or within such other time as may be required by the Singapore Companies Act. Completion and submission of the proxy card shall not preclude a shareholder of record from attending and voting at the 2021 AGM. Any appointment of a legal proxy or proxies will be revoked if a shareholder of record attends and votes in person at the 2021 AGM, and in such event, we reserve the right to refuse to admit any person or persons appointed under the instrument of proxy or proxies to the meeting.

For the avoidance of doubt, the reference to “proxy” in this Notice does not mean a “legal proxy” entitled under Singapore law to attend and vote on behalf of a shareholder of record. The reference to “soliciting your

proxy” means that a shareholder of record may appoint the persons identified on the proxy card as such shareholder’s legal proxies to vote in accordance with such shareholder’s instructions given via proxy or to authorize such persons to vote freely.

Beneficial or “Street Name” Holders. If your shares are held in “street name” (i.e., in the name of a bank, broker or other shareholder of record), you will receive instructions from the shareholder of record. You must follow the instructions of the shareholder of record in order for your shares to be voted. If your shares are not registered in your own name and you plan to vote your shares in person at the 2021 AGM, you should contact your broker or agent to obtain a legal proxy or broker’s proxy card and bring it to the 2021 AGM in order to vote as a legal proxy.

Singapore Audited Accounts. At the 2021 AGM, our shareholders will have the opportunity to discuss and ask questions regarding our Singapore audited accounts for the fiscal year ended December 31, 2020, together with the directors’ statement and independent auditors’ report thereon, in compliance with the laws of Singapore. Shareholder approval of our Singapore audited accounts is not being sought by the attached proxy statement and will not be sought at the 2021 AGM.

COVID-19. The 2021 AGM is subject to the evolving COVID-19 situation, and shareholders should note that we may be required or it may be advisable to change our meeting arrangements for the 2021 AGM on short notice. Shareholders should refer to Wave’s website at https://ir.wavelifesciences.com/ and/or its announcements for the latest updates on the status of the 2021 AGM.

When you have finished reading the attached proxy statement, you are urged to vote in accordance with the instructions set forth in the proxy statement. We encourage you to vote by proxy so that your shares will be represented and voted at the 2021 AGM, whether or not you can attend.

Thank you for your continued support of Wave Life Sciences Ltd.

TABLE OF CONTENTS

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IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS

FOR THE ANNUAL GENERAL MEETING OF SHAREHOLDERS

TO BE HELD ON AUGUST 10, 2021

The Notice, this proxy statement and our 2020 annual report to shareholders are available for viewing, printing and downloading at https://materials.proxyvote.com/. You can elect to receive distributions of our proxy statements and annual reports to shareholders for future annual general meetings by electronic delivery. For specific instructions on making such an election, please refer to the instructions on the proxy card or voting instruction form.

At no charge, we are providing each person from whom a proxy is solicited a copy of, and access to, our Annual Report on Form 10-K for the fiscal year ended December 31, 2020, as amended (our “2020 Form 10-K”). Additionally, you can find a copy of our 2020 Form 10-K on the website of the Securities and Exchange Commission (the “SEC”), at www.sec.gov, or in the “For Investors & Media” section of our website at http://ir.wavelifesciences.com/ under the heading “Financial Information.” You may also obtain a printed copy of our 2020 Form 10-K, free of charge, from us by sending a written request to Investor Relations, Wave Life Sciences Ltd., 733 Concord Avenue, Cambridge, MA 02138 or by email to IR@wavelifesci.com. Exhibits to our 2020 Form 10-K will be provided upon written request and payment of an appropriate processing fee.

The information provided on our website (www.wavelifesciences.com) is referenced in this proxy statement for information purposes only. The information on our website shall not be deemed to be a part of or incorporated by reference into this proxy statement or any other filings we make with the SEC or any solicitation of proxies by us.

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WAVE LIFE SCIENCES LTD.

733 CONCORD AVENUE

CAMBRIDGE, MA 02138

PROXY STATEMENT FOR THE WAVE LIFE SCIENCES LTD.

2021 ANNUAL GENERAL MEETING OF SHAREHOLDERS

TO BE HELD ON AUGUST 10, 2021

This proxy statement, along with the accompanying Notice of 2021 Annual General Meeting of Shareholders (the “Notice”), contains information about the 2021 Annual General Meeting of Shareholders of Wave Life Sciences Ltd. (including any adjournments or postponements thereof), which we refer to in this proxy statement as the “2021 AGM.” We are holding the 2021 AGM at 11:00 a.m., Eastern Time, on Tuesday, August 10, 2021, at 733 Concord Avenue, Cambridge, MA 02138. The 2021 AGM is subject to the evolving COVID-19 situation, and shareholders should note that we may be required or it may be advisable to change our meeting arrangements for the 2021 AGM on short notice. Shareholders should refer to Wave’s website at https://ir.wavelifesciences.com/ and/or its announcements for the latest updates on the status of the 2021 AGM.

In this proxy statement, we refer to Wave Life Sciences Ltd. as “Wave,” the “Company,” “we,” “us” and “our.”

This proxy statement relates to the solicitation of proxies by our Board of Directors for use at the 2021 AGM.

On or about June 30, 2021, we intend to begin sending this proxy statement, the Notice and the enclosed proxy card to shareholders of record as of June 17, 2021.

Although not part of this proxy statement, we are also sending, along with this proxy statement, our 2020 annual report to shareholders, which includes our financial statements for the fiscal year ended December 31, 2020. Except as otherwise stated herein, all monetary amounts in this proxy statement have been presented in U.S. dollars.

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IMPORTANT INFORMATION ABOUT THE

ANNUAL GENERAL MEETING OF SHAREHOLDERS AND VOTING

Why is the Company Soliciting My Proxy?

The Board of Directors of Wave Life Sciences Ltd. (the “Board” or our “Board”) is soliciting your proxy to vote at the 2021 Annual General Meeting of Shareholders (the “2021 AGM”) to be held at 733 Concord Avenue, Cambridge, MA 02138 on Tuesday, August 10, 2021, at 11:00 a.m., Eastern Time, and any adjournments or postponements of the 2021 AGM. The 2021 AGM is subject to the evolving COVID-19 situation, and shareholders should note that we may be required or it may be advisable to change our meeting arrangements for the 2021 AGM on short notice. This proxy statement, along with the Notice, summarizes the purposes of the meeting and the information you need to know to vote at the 2021 AGM.

We have made available to you on the Internet or have sent you this proxy statement, the Notice, the proxy card, and our 2020 annual report to shareholders because you owned ordinary shares of Wave Life Sciences Ltd. on the record date for determining those shareholders who will be entitled to receive copies of the Notice and this proxy statement. We intend to begin distributing the proxy materials to shareholders on or about June 30, 2021.

For the avoidance of doubt, the reference to “proxy” in this proxy statement does not mean a “legal proxy” entitled under Singapore law to attend and vote on behalf of a shareholder of record. The reference to “soliciting your proxy” means that a shareholder of record may appoint the persons identified on the proxy card as such shareholder’s legal proxy to vote in accordance with such shareholder’s instructions given via proxy or to authorize such persons to vote freely.

Who Can Vote?

The Board has fixed the close of business on June 17, 2021 as the record date for determining those shareholders who will be entitled to receive copies of the Notice and this proxy statement. As of June 17, 2021, we had 50,313,394 ordinary shares issued and outstanding. However, under Singapore law, only registered holders of our ordinary shares, or “shareholders of record,” on the date of the 2021 AGM, August 10, 2021, will be entitled to vote at the 2021 AGM. If you have sold or transferred any of your ordinary shares after the record date of June 17, 2021 and prior to the 2021 AGM, you should immediately forward the Notice, this proxy statement and the proxy card to the purchaser or transferee of such shares, or to the bank, broker or agent through whom the sale of such shares was effected, for onward transmission to the purchaser or transferee. If you hold shares other than in registered form as a shareholder of record, and instead hold your shares as, or through, a participant in DTC (i.e., in “street name”), we understand that in order for your vote to be counted at the 2021 AGM (represented by a shareholder of record), you must also have been a holder of shares on the date of the 2021 AGM, August 10, 2021.

All shareholders of record as of the date of the 2021 AGM are cordially invited to attend the 2021 AGM or appoint a legal proxy to attend and vote in their place. A legal proxy need not also be a shareholder of record. Whether or not you plan to attend the 2021 AGM, we urge you to vote and submit your proxy card by mail in order to ensure the presence of a quorum. A proxy card must be received by Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717 not less than 48 hours before the time appointed for holding the 2021 AGM or within such other time as may be required by the Singapore Companies Act. Completion and submission of the proxy card shall not preclude a shareholder of record from attending and voting at the 2021 AGM. Any appointment of a legal proxy or proxies will be revoked if a shareholder of record attends and votes in person at the 2021 AGM, and in such event, we reserve the right to refuse to admit any person or persons appointed under the instrument of proxy or proxies to the meeting. Shareholders of record may change or revoke their legal proxies at any time before their shares are voted at the 2021 AGM. For instructions on how to change or revoke your legal proxy, see “May I Change or Revoke My Proxy?” below.

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How Many Votes Do I Have?

Each ordinary share that you own or represent as a legal proxy entitles you to one vote at the 2021 AGM. The Series A preferred shares of the Company are not entitled to vote on any of the matters being proposed at the 2021 AGM.

How Do I Vote?

If you are not planning to attend the 2021 AGM, we urge you to vote by proxy. All shares represented by valid proxies that we receive through this solicitation, and that are not revoked, will be voted in accordance with your instructions on the proxy card. You may specify whether your shares should be voted for, against or abstain for each nominee for director, and whether your shares should be voted for, against or abstain with respect to each of the other proposals. If you properly submit a proxy card without giving specific voting instructions, your shares will be voted in accordance with the Board’s recommendations as noted below, except as described under “Will My Shares be Voted if I Do Not Vote or Provide Voting Instructions?” Voting by proxy will not affect your right to attend the 2021 AGM. If you are a shareholder of record such that your shares are registered directly in your name through our transfer agent, Computershare Trust Company, N.A., or you have share certificates registered in your name, you may vote:

A proxy card must be received by Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717 not less than 48 hours before the time appointed for holding the 2021 AGM or within such other time as may be required by the Singapore Companies Act.

If your shares are held in “street name” (i.e., in the name of a bank, broker or other shareholder of record), you will receive instructions from the shareholder of record. You must follow the instructions of the shareholder of record in order for your shares to be voted. If your shares are not registered in your own name and you plan to vote your shares in person at the 2021 AGM, you should contact your broker or agent to obtain a legal proxy or broker’s proxy card and bring it to the 2021 AGM in order to vote.

How Does the Board of Directors Recommend That I Vote on the Proposals?

The Board of Directors recommends that you vote as follows:

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If any other matter is presented at the 2021 AGM, your proxy card provides that your shares will be voted by the proxy holder listed in the proxy card in accordance with the proxy holder’s judgment. At the time this proxy statement was first made available, we knew of no matters that needed to be acted on at the 2021 AGM, other than those discussed in this proxy statement.

May I Change or Revoke My Proxy?

If you give us your proxy, you may change or revoke it at any time before or at the 2021 AGM in any one of the following ways:

Your most current vote is the one that will be counted.

What if I Receive More Than One Proxy Card?

You may receive more than one proxy card if you hold any of our ordinary shares in more than one account, which may be in registered form or held in street name. Please vote in the manner described above under “How Do I Vote?” for each account to ensure that all of your shares are voted.

Will My Shares be Voted if I Do Not Vote or Provide Voting Instructions?

If your shares are registered in your name or if you have share certificates, they will not be counted if you do not vote as described above under “How Do I Vote?”. If your shares are held in street name and you do not provide voting instructions to the bank, broker or other nominee that holds your shares as described above, the bank, broker or other nominee that holds your shares has the authority to vote your unvoted shares without receiving instructions from you on Proposal 2: the approval of the re-appointment of KPMG LLP as our independent registered public accounting firm and independent Singapore auditor and the authorization of KPMG’s remuneration. We encourage you to provide voting instructions to your bank, broker or other nominee to ensure your shares will be voted at the 2021 AGM and in the manner you desire. A “broker non-vote” will occur if your broker cannot vote your shares on a particular matter because it has not received instructions from you and does not have discretionary voting authority on that matter or because your broker chooses not to vote on a matter for which it does have discretionary voting authority.

What Vote is Required to Approve Each Proposal and How are Votes Counted?

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Where Can I Find the Voting Results of the 2021 AGM?

The preliminary voting results will be announced at the 2021 AGM, and we will publish preliminary results, or final results if available, in a Current Report on Form 8-K within four business days after the 2021 AGM. If final results are unavailable at the time we file the Form 8-K, then we will file an amended report on Form 8-K to disclose the final voting results within four business days after the final voting results are known.

What Are the Costs of Soliciting these Proxies?

We will pay all of the costs of soliciting these proxies. Our directors and employees may solicit proxies in person or by telephone, fax or email. We will pay these employees and directors no additional compensation for these services. We will ask banks, brokers and other institutions, nominees and fiduciaries to forward these proxy materials to their principals and to obtain authority to execute proxies. We will then reimburse them for their expenses.

We have engaged Innisfree to act as our proxy solicitor in connection with the proposals to be acted upon at our 2021 AGM. Pursuant to our agreement with our proxy solicitor, our proxy solicitor will, among other things, provide advice regarding proxy solicitation issues and solicit proxies from our shareholders on our behalf in connection with the 2021 AGM. For these services, we will pay a fee of approximately $20,000 plus expenses. If you have any questions or require any assistance, you may contact Innisfree using a dedicated toll-free number at 877-717-3898.

What Constitutes a Quorum for the 2021 AGM?

In order to hold the meeting, there must be a quorum. The presence, in person or by proxy, of at least two shareholders holding in aggregate at least a majority of all issued and outstanding ordinary shares entitled to vote at the 2021 AGM is necessary to constitute a quorum at the 2021 AGM. Votes of shareholders of record who are present in person or represented by proxy at the 2021 AGM, abstentions and broker non-votes are counted for purposes of determining whether a quorum exists.

Attending the 2021 AGM

The 2021 AGM will be held at 11:00 a.m., Eastern Time, on Tuesday, August 10, 2021 at 733 Concord Avenue, Cambridge, MA 02138. When you arrive, signs will direct you to the appropriate meeting rooms. You need not attend the 2021 AGM in person in order to vote, provided that your proxy is present to represent your vote. The 2021 AGM is subject to the evolving COVID-19 situation, and shareholders should note that we may be required or it may be advisable to change our meeting arrangements for the 2021 AGM on short notice. Shareholders should refer to Wave’s website at https://ir.wavelifesciences.com/ and/or its announcements for the latest updates on the status of the 2021 AGM.

Singapore Statutory Financial Statements

Our Singapore audited accounts for the fiscal year ended December 31, 2020, prepared in conformity with the provisions of the laws of Singapore, and the accompanying directors’ statement and the independent auditors’ report thereon are required under Singapore law and our Constitution to be provided to shareholders for discussion at the 2021 AGM. We refer to such materials herein collectively as the “Singapore Statutory Financial Statements.” The Singapore Statutory Financial Statements are provided as Appendix A to this proxy statement solely to satisfy this requirement. At the 2021 AGM, our shareholders will have the opportunity to discuss and ask questions regarding the Singapore Statutory Financial Statements. Shareholder approval of the Singapore Statutory Financial Statements is not being sought by this proxy statement for the 2021 AGM and will not be sought at the 2021 AGM. The Singapore Statutory Financial Statements shall not be deemed to be “soliciting material” or to be “filed” with the SEC nor shall such information be incorporated by reference into any filings under the Securities Act of 1933, as amended, or under the Exchange Act, or be subject to the liabilities of Section 18 of the Exchange Act, except to the extent that we specifically incorporate this information by reference into any such filing.

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SECURITY OWNERSHIP OF

CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth certain information with respect to the beneficial ownership of our ordinary shares as of June 15, 2021 for (i) the executive officers named in the Summary Compensation Table appearing elsewhere in this proxy statement, (ii) each of our directors, (iii) all of our current directors and executive officers as a group, and (iv) each shareholder known by us to own beneficially more than 5% of our ordinary shares. Beneficial ownership is determined in accordance with the rules of the SEC and includes voting or investment power with respect to the securities. We deem ordinary shares that may be acquired by an individual or group within 60 days after June 15, 2021 pursuant to the exercise of options, the vesting of restricted share unit awards, or the conversion of our outstanding Series A preferred shares into ordinary shares to be outstanding for the purpose of computing the percentage ownership of such individual or group, but such shares are not deemed to be outstanding for the purpose of computing the percentage ownership of any other person shown in the table. Except as indicated in footnotes to this table, we believe that the shareholders named in this table have sole voting and investment power with respect to all ordinary shares shown to be beneficially owned by them based on information provided to us by these shareholders. Percentage ownership is based on 50,231,204 ordinary shares outstanding on June 15, 2021.

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MANAGEMENT AND CORPORATE GOVERNANCE

Board of Directors

Pursuant to our Constitution, there is no maximum number of directors that may hold office at any time. Our Board currently consists of nine members and each of our directors is elected annually. Our Constitution requires that each of our directors retire at each annual general meeting of our shareholders, and each retiring director is then eligible for re-election.

On June 14, 2021, our Board accepted the recommendation of the Nominating and Corporate Governance Committee and voted to nominate Paul B. Bolno, M.D., MBA, Mark H.N. Corrigan, M.D., Christian Henry, Peter Kolchinsky, Ph.D., Adrian Rawcliffe, Ken Takanashi, Aik Na Tan, Gregory L. Verdine, Ph.D., and Heidi L. Wagner, J.D., each currently a director of the Company, for election at the 2021 AGM. If each such nominee is elected, he or she will serve on our Board until our 2022 Annual General Meeting of Shareholders and until his or her successor has been elected and qualified.

Pursuant to the Singapore Companies Act, Chapter 50 (the “Singapore Companies Act”) and our Constitution, our Board must have at least one director who is ordinarily resident in Singapore. Ms. Tan is currently our Singapore resident director. Due to the Singapore Companies Act requirement that we have at least one director who is ordinarily resident in Singapore in office at all times, the sole resident director cannot resign or step down unless there is at least one other resident director. In the event that Ms. Tan is not elected at the 2021 AGM, she will continue in office after the 2021 AGM as a member of our Board until her qualifying successor (i.e., a Singapore resident director) is appointed.

Set forth below are the names of our directors, their ages as of June 15, 2021, their offices in the Company, if any, their principal occupations or employment for at least the past five years, the length of their tenure as directors and the names of other public companies in which they hold or have held directorships during the past five years. In addition, information about the specific experience, qualifications, attributes or skills that led to our Board’s conclusion at the time of filing of this proxy statement that each person listed below should serve as a director is set forth below.

Paul B. Bolno, M.D., MBA has served as our President and Chief Executive Officer since December 2013 and as a director since April 2014. Prior to joining us, he served at GlaxoSmithKline from 2009 to 2013 in various roles, including Vice President, Worldwide Business Development — Head of Asia BD and Investments, Head of Global Neuroscience BD, a director of Glaxo Welcome Manufacturing, Pte. Ltd. in Singapore and Vice President, Business Development for the Oncology Business Unit, where he helped establish GlaxoSmithKline’s global oncology business and served as a member of the Oncology Executive Team, Oncology Commercial Board and Cancer Research Executive Team. Prior to GlaxoSmithKline, he served as director of Research at Two River LLC, a health care private equity firm from 2004 to 2009. Dr. Bolno earned a medical degree from MCP-Hahnemann School of Medicine and an M.B.A. from Drexel University. He was a general surgery resident and cardiothoracic surgery postdoctoral research fellow at Drexel University College of Medicine. We believe

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that Dr. Bolno’s experience serving as our President and Chief Executive Officer since 2013, his medical degree and clinical training in cardiothoracic surgery, his business degree and experience evaluating life sciences companies in healthcare private equity, and his extensive business development and operating experience working in various roles at one of the world’s largest global healthcare companies qualify him to serve on our Board.

Christian Henry has served as a director since November 2016, and as Chairman of our Board since October 2017. Mr. Henry currently serves as the Chief Executive Officer of Pacific Biosciences, a publicly traded life sciences company, a position he has held since September 2020. Mr. Henry has also served on the board of directors of Pacific Biosciences since 2018 and serves on the board of directors of Ginkgo Bioworks, a private synthetic biology company. Mr. Henry served as Executive Vice President & Chief Commercial Officer of Illumina, Inc. from 2015 through January 2017, and previously served as Senior Vice President & Chief Commercial Officer from 2014 to 2015, Senior Vice President & General Manager Genomic Solutions from 2012 to 2014, Senior Vice President, Chief Financial Officer & General Manager Life Sciences from 2010 to 2012, Senior Vice President, Corporate Development & Chief Financial Officer from 2009 to 2010, Senior Vice President & Chief Financial Officer from 2007 to 2009, and Vice President & Chief Financial Officer from 2005 to 2006. Prior to joining Illumina, Inc., Mr. Henry served as the Chief Financial Officer of Tickets.com, Inc. from 2003 to 2005. From 1999 to 2003, Mr. Henry served as Vice President, Finance & Corporate Controller of Affymetrix, Inc. (acquired by Thermo Fisher Scientific in 2016). In 1997, Mr. Henry joined Nektar Therapeutics (formerly Inhale Therapeutic Systems, Inc.), as Corporate Controller, and later as its Chief Accounting Officer from 1997 to 1999. In 1996, Mr. Henry served as General Accounting Manager of Sugen, Inc. Mr. Henry began his career in 1992 at Ernst & Young LLP, where he was a Senior Accountant through 1996. Mr. Henry earned his B.A. in biochemistry and cell biology from the University of California, San Diego, and his M.B.A., with a concentration in finance, from the University of California, Irvine. We believe he is qualified to serve on our Board and as our Chairman because of his proven strengths in corporate strategy, finance and operations, along with his extensive experience leading various functions at one of the largest and most innovative genetic healthcare companies, and his experience as a board member, board committee member and chief executive officer of publicly-traded life sciences companies.

Mark H.N. Corrigan, M.D. has served as a director since September 2019. Dr. Corrigan served as the Chief Executive Officer of Correvio Pharma Corp. from March 2019 to May 2020. Prior to joining Correvio, Dr. Corrigan was President of Research and Development at Tremeau Pharmaceuticals from 2016 to March 2019. Dr. Corrigan served as President and Chief Executive Officer of Zalicus, Inc. (formerly CombinatoRx) from 2010 to 2014. Prior to that time, from 2003 to 2009, Dr. Corrigan held the role of Executive Vice President, Research and Development at Sepracor Inc. From 2000 to 2003, Dr. Corrigan served as Group Vice President, Clinical Research & Experimental Medicine at Pharmacia Corporation. Prior to this, Dr. Corrigan held various roles at The Upjohn Company, The University of North Carolina, and the National Institute of Mental Health Center for Psychoneuroendocrinology in Adults and Children at Dorthea Dix Hospital. Dr. Corrigan currently serves as a member of the board of directors of Exacis Biotherapeutics, Inc., Nabriva Therapeutics plc, and Tremeau Pharmaceuticals (of which he is also a co-founder). Dr. Corrigan previously served as a member of the board of directors of Avanir Pharmaceuticals, Inc., CoLucid Pharmaceuticals, Inc., Correvio Pharma Corp., and Cubist Pharmaceuticals, Inc. Dr. Corrigan holds an M.D. from the University of Virginia and received specialty training in psychiatry at Maine Medical Center and Cornell University. He received a Bachelor of Arts in Psychology from the University of Virginia. We believe he is qualified to serve on our Board because of his extensive experience working with clinical-stage, publicly-traded biopharmaceutical companies as a board member, board committee member and chief executive officer, his medical degree and clinical training in psychiatry, and his clinical and regulatory expertise.

Peter Kolchinsky, Ph.D. has served as a director since January 2015. Dr. Kolchinsky is a founder and Managing Partner of RA Capital Management, L.P., a multi-stage investment manager which is dedicated to evidence-based investing in healthcare and life science companies that are developing drugs, medical devices, and diagnostics, where he has worked since 2001. RA Capital Management, L.P. is the investment manager of

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RA Capital Healthcare Fund, L.P. Dr. Kolchinsky also serves as the Chairman and CEO of Therapeutics Acquisition Corp. (AKA Research Alliance Corp. I) and Chairman and CEO of Research Alliance Corp. II. Dr. Kolchinsky plans to step down as Chairman and CEO of Therapeutics Acquisition Corp. and is not standing for re-election in connection with its previously announced business combination with an operating company. A special meeting of the shareholders of Therapeutics Acquisition Corp. is scheduled for June 29, 2021, at which the shareholders will be asked to approve the business combination. He serves as a member of the board of directors of Forma Therapeutics Holdings, Inc., Therapeutics Acquisition Corp, and Research Alliance Corp. II. Dr. Kolchinsky also leads RA Capital’s engagement and publishing efforts, which aim to make a positive social impact and spark collaboration among healthcare stakeholders, including patients, physicians, researchers, policymakers, and industry. He served on the Board of Global Science and Technology for the National Academy of Sciences from 2009 to 2012, is the author of “The Great American Drug Deal” and “The Entrepreneur’s Guide to a Biotech Startup”, and frequently writes and speaks on the future of biotechnology innovation. Dr. Kolchinsky earned his Ph.D. in virology from Harvard University and earned his bachelor’s degree in Biology from Cornell University. We believe he is qualified to serve on our Board because of his scientific acumen, strong reputation as a thought leader in the life sciences industry, his extensive experience investing in and forming, building and growing life sciences companies and mentoring their management teams, as well as his experience as an institutional investor and his experience serving as a board member, board committee member, and board observer of various publicly-traded and privately-held healthcare and life science companies.

Adrian Rawcliffe has served as a director since February 2017. Since September 2019, Mr. Rawcliffe has served as the Chief Executive Officer of Adaptimmune Therapeutics plc. From 2015 to September 2019, he served as Adaptimmune’s Chief Financial Officer. Prior to joining Adaptimmune, Mr. Rawcliffe served in various roles at GlaxoSmithKline plc, including Senior Vice President Finance, North America Pharmaceuticals and Global Franchises from 2011 to 2015; Senior Vice President, Worldwide Business Development and R&D Finance from 2006 to 2011; Vice President, Worldwide Business Development Transactions and Ventures from 2003 to 2005; and Vice President, Deal Structuring from 2001 to 2003. From 2005 to 2006, Mr. Rawcliffe served as the President and Managing Partner of SR One Ltd. Mr. Rawcliffe began his career as a supervisor at Coopers & Lybrand (now PricewaterhouseCoopers) from 1993 to 1997. Mr. Rawcliffe received his B.Sc. in Natural Sciences from the University of Durham, England. Mr. Rawcliffe also received Chartered Accountancy training through The Institute of Chartered Accountants in England and Wales (ICAEW). We believe he is qualified to serve on our Board because of his global operating and business leadership experience working in the biopharmaceutical industry, his experience as a board member, board committee member, chief financial officer and chief executive officer of publicly traded biotechnology companies, and his extensive operating and corporate development experience working in various roles at one of the world’s largest global healthcare companies.

Ken Takanashi has served as a director since July 2012. Since 2002, Mr. Takanashi has served in various executive management and director roles at Shin Nippon Biomedical Laboratories Ltd. (“SNBL”) and its affiliates and currently serves as its Executive Vice President, Chief Operating Officer. Mr. Takanashi was the Chief Financial Officer of SNBL USA, Ltd., a subsidiary of Shin Nippon Biomedical Laboratories, from 2012 to 2014. Mr. Takanashi also serves on the board of directors of Satsuma Pharmaceuticals, Inc., a publicly traded biopharmaceutical company. Mr. Takanashi earned an M.B.A. from the University of Warwick and received his bachelor’s degree from the University of Tokyo and is a Chartered Public Accountant. We believe he is qualified to serve on our Board because of his extensive experience leading global research and development organizations in the biopharmaceutical industry, his experience forming, building and taking life sciences companies public, his experience serving as a board member and board committee member of various publicly-traded life sciences companies, his long-standing history with Wave, his close familiarity with our Japanese operations, and his business, financial and accounting credentials.

Aik Na Tan has served as a director since August 2020. Ms. Tan currently serves as Senior Vice-President (Administration) at Nanyang Technological University, Singapore (NTU), a position she has held since January

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2020. From when she joined NTU in August 2016 to December 2017, she served as NTU’s Chief Financial Officer. She also served as NTU’s Chief Administrative Officer from April 2017 to December 2017 and as NTU’s Vice-President (Administration) from January 2018 to December 2019. Prior to joining NTU, Ms. Tan served as Global Finance Transformation Leader & Managing Director of the Chemours Company Singapore Pte Ltd, a spin-off from DuPont, from 2015 to 2016. From 1994 to 2015, Ms. Tan held numerous global and regional leadership roles at DuPont in accounting, corporate treasury, six sigma, financial systems, supply chain, operations, financial and strategic planning, including various positions at DuPont Company (Singapore) Pte Ltd, most recently serving as the Chief Financial Officer of DuPont Titanium Technologies from November 2011 to February 2015. Ms. Tan began her professional career as a tax assistant at Price Waterhouse. Ms. Tan holds a Bachelor of Accountancy degree from the Nanyang Technological University, Singapore, and is a member of the Institute of Singapore Chartered Accountants. We believe she is qualified to serve on our Board because of her extensive experience as a chief financial officer and chief administrative officer, her broad operations experience working in Singapore corporations, her experience working on boards of directors and committees thereof, as well as her business, financial and accounting credentials.

Gregory L. Verdine, Ph.D. is one of our founders and has served as a director since July 2013. He was our President, Chief Executive Officer and Chief Scientific Officer from our inception through December 2013 and served as Chairman of our Board from July 2013 through September 2017. Since 1989, Dr. Verdine has served as the Erving Professor of Chemistry in the Department of Stem Cell and Regenerative Biology and the Department of Chemistry and Chemical Biology at Harvard University and Harvard Medical School; he is now Erving Professor of Chemistry, Emeritus. Dr. Verdine co-founded the non-profit Gloucester Marine Genomics Institute and Gloucester Biotechnology Academy in 2013 and served as the Founding President until 2016. He is the co-founder of Fog Pharmaceuticals Inc. and currently serves as President and Chief Executive Officer for the company. He is also Chief Executive Officer and Chief Scientific Officer of LifeMine Therapeutics Inc. He is also the founder of Warp Drive Bio (merged with Revolution Medicines, Inc. (Nasdaq: RVMD)) and served in various roles, from Chief Scientific Officer to Chief Executive Officer, from the company’s inception in 2012 until April 2016. Dr. Verdine founded Enanta Pharmaceuticals and served as a member of its board of directors from 1990 through its initial public offering in 2013. He is a Venture Partner at WuXi Healthcare Ventures, and has previously served as Venture Partner at AppleTree Ventures, TPG Biotech and Third Rock Ventures. He has served on the Board of Scientific Counsellors of the National Cancer Institute, and is on the Board of Scientific Consultants of the Memorial Sloan Kettering Cancer Center, and he is a Senior Advisor to Shin Nippon Biomedical Laboratories Ltd. Dr. Verdine is also the co-founder of Eleven Biotherapeutics, Tokai Therapeutics, Aileron Therapeutics, and Gloucester Pharmaceuticals (acquired by Celgene in 2010). He has also served as a director of the Chemical Biology Initiative and the Program in Cancer Chemical Biology at the Dana-Farber Cancer Institute. Dr. Verdine received his Ph.D. in Chemistry from Columbia University and completed postdoctoral work in Molecular Biology at the Massachusetts Institute of Technology and Harvard Medical School. We believe he is qualified to serve on our Board because of his expertise and deep knowledge of our technology as one of our co-founders, his vast expertise in unique protein chemistry, including as a leading expert in the field of stereochemistry, and his long track record of founding, advising and leading successful biopharmaceutical companies.

Heidi L. Wagner, J.D. has served as a director since September 2019. Ms. Wagner currently serves as Senior Vice President, Government Affairs and Policy at Global Blood Therapeutics, Inc., where she has worked since 2018. Prior to joining Global Blood Therapeutics, Ms. Wagner served as Senior Vice President, Global Governmental Affairs at Alexion Pharmaceuticals, Inc. from 2012 to 2018, and as Vice President, Global Government Affairs from 2009 to 2012. Ms. Wagner held the role of Senior Director of Government Affairs at Genentech, Inc. from 2000 to 2009, and as Director, Government Affairs from 1998 to 1999. Prior to that time, she served as Health Policy Director and Consultant at Healthcare Leadership Council, and in various roles at Epstein Becker & Green and Groom & Nordberg, and the U.S. House of Representatives. Ms. Wagner currently serves as a member of the board of directors of the American Kidney Fund, as a Trustee of the University of Colorado Foundation, and as an advisory board member of the University of Colorado, College of Media, Communication and Information. From 2015 to 2018, she also served as a member of the board of directors of

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the European Confederation of Pharmaceutical Entrepreneurs. Ms. Wagner earned a J.D. from George Mason University School of Law and received a Bachelor of Science in Journalism and Mass Communication from the University of Colorado. We believe she is qualified to serve on our Board because of her extensive experience as a government affairs executive driving strategy for government policy, pricing, reimbursement and patient access for various biopharmaceutical companies, including leading the pricing and reimbursement strategy, and implementing the global compliance programs for leading rare disease biopharmaceutical organizations.

Director Independence

Our Board believes that independence is one important component of a high-functioning board capable of objective decision-making that represents the long-term interests of shareholders and the Company. Since the Company’s initial public offering in 2015, our Board has enhanced its independence by replacing two previous directors — a founder and a representative of an investor — with five directors who are independent and not affiliated with any of our principal shareholders. We further enhanced our Board’s independent leadership by appointing Christian Henry as its independent Chairman. Our Board is committed to ensuring that its members reflect an appropriate level of independence in conjunction with the combination of qualifications, qualities and skills required to exercise its duties and responsibilities and serve the best interests of the Company and its shareholders. In accordance with our Corporate Governance Guidelines and Nasdaq rules, we hold executive sessions of our independent directors in conjunction with our regularly scheduled board meetings and otherwise as appropriate. In addition, our Compensation Committee meets in executive session with no members of management present, as necessary or appropriate, to address various compensation matters, including deliberations regarding our Chief Executive Officer’s performance and compensation.

Our Board has reviewed the materiality of any relationship that each of our directors has with the Company, either directly or indirectly. Based upon this review, our Board has determined that the following members of the Board are “independent directors” as defined by the Nasdaq Stock Market: Mses. Tan and Wagner, Drs. Kolchinsky and Corrigan, and Messrs. Henry, Rawcliffe and Takanashi.

Committees of the Board of Directors and Meetings

Meeting Attendance. During the fiscal year ended December 31, 2020, there were six meetings of our Board, and the various committees of the Board met a total of 14 times. No director attended fewer than 75% of the total number of meetings of the Board and of committees of the Board on which such director served during 2020. The Board has adopted a policy under which our directors are encouraged to attend our annual general meetings of shareholders. As a Singapore company, we are required to prepare annual Singapore statutory audited financial statements (our “second annual audit”) and to deliver them to our shareholders in connection with our annual general meetings of shareholders. Our second annual audit can only be conducted following our first annual audit, which requires our preparation and filing of annual U.S. GAAP audited consolidated financial statements with the SEC. As a result, these multiple audits do not allow us to schedule our quarterly board meetings at the same time as our annual general meetings of shareholders and we typically hold our annual general meetings during the summertime.

Audit Committee. Our Audit Committee held seven meetings during the fiscal year ended December 31, 2020. Our Audit Committee currently has four members: Mr. Henry (Chairman), Dr. Corrigan, Mr. Rawcliffe, and Ms. Tan. During the period of January 1, 2020 through August 18, 2020, our Audit Committee was comprised of Mr. Henry (Chairman), Dr. Corrigan, Mr. Rawcliffe and Koji Miura. On August 18, 2020, Mr. Miura retired from the Board and the Audit Committee upon the conclusion of our 2020 Annual General Meeting of Shareholders. During the period of August 18, 2020 through November 2, 2020, our Audit Committee was comprised of Mr. Henry (Chairman), Dr. Corrigan, and Mr. Rawcliffe. On November 2, 2020, Ms. Tan joined as a member of our Audit Committee. Our Audit Committee’s role and responsibilities are set forth in the Audit Committee’s written charter and include the responsibility to retain and terminate the services of our independent registered public accounting firm. In addition, the Audit Committee reviews annual financial

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statements, considers matters relating to accounting policy and internal controls, including oversight of data privacy and cyber security matters, and reviews the scope of annual audits.

Dr. Corrigan, Messrs. Henry and Rawcliffe, and Ms. Tan satisfy the current independence standards promulgated by the SEC and by the Nasdaq Stock Market, as such standards apply specifically to members of audit committees. The Board has determined that each member of the Audit Committee meets the financial literacy requirements of the Nasdaq Stock Market Rules and that each of Messrs. Henry and Rawcliffe and Ms. Tan qualifies as an “audit committee financial expert,” as the SEC has defined that term in Item 407 of Regulation S-K.

A copy of the Audit Committee’s written charter is publicly available on our website at www.wavelifesciences.com.

Compensation Committee. Our Compensation Committee met four times during the fiscal year ended December 31, 2020. The Compensation Committee currently has three members: Mr. Henry (Chairman), Mr. Rawcliffe, and Ms. Wagner. During the period of January 1, 2020 through December 1, 2020, our Compensation Committee was comprised of Mr. Henry (Chairman), Dr. Kolchinsky and Ms. Pott. On December 1, 2020, Mr. Rawcliffe replaced Dr. Kolchinsky as a member of our Compensation Committee. On January 8, 2021, Ms. Pott resigned from the Board and the Compensation Committee. On April 15, 2021, Ms. Wagner joined as a member of our Compensation Committee. Our Compensation Committee’s role and responsibilities are set forth in the Compensation Committee’s written charter and include reviewing, approving and making recommendations regarding our compensation policies, practices and procedures to ensure that legal and fiduciary responsibilities of the Board are carried out and that such policies, practices and procedures contribute to our success. Our Compensation Committee also administers our 2014 Equity Incentive Plan, as amended (the “2014 Equity Incentive Plan”), and our 2019 Employee Share Purchase Plan (the “2019 ESPP”). The Compensation Committee is responsible for determining the compensation of our executive officers.

Each member of the Compensation Committee qualifies as independent under the definition promulgated by the Nasdaq Stock Market.

A copy of the Compensation Committee’s written charter is publicly available on our website at www.wavelifesciences.com.

Nominating and Corporate Governance Committee. Our Nominating and Corporate Governance Committee met three times during the fiscal year ended December 31, 2020. The Nominating and Corporate Governance Committee currently has three members: Dr. Corrigan (Chairman), Mr. Takanashi and Ms. Wagner. During the period of January 1, 2020 through December 1, 2020 our Nominating and Corporate Governance Committee was comprised of Mr. Henry (Chairman), Mr. Takanashi and Ms. Wagner. On December 1, 2020, Dr. Corrigan replaced Mr. Henry as the Chairman of our Nominating and Corporate Governance Committee. The Nominating and Corporate Governance Committee’s role and responsibilities are set forth in the Nominating and Corporate Governance Committee’s written charter and include evaluating and making recommendations to the full Board as to the size and composition of the Board and its committees, evaluating and making recommendations as to potential candidates, and evaluating current Board members’ performance. In addition, the Nominating and Corporate Governance Committee is responsible for overseeing the Company’s environmental, social and governance (“ESG”) strategy, initiatives and policies and overseeing the Company’s practices related to human capital management (“HCM”) and diversity, equity and inclusion (“DEI”).

Each member of the Nominating and Corporate Governance Committee qualifies as independent under the definition promulgated by the Nasdaq Stock Market.

The Nominating and Corporate Governance Committee is responsible for identifying individuals qualified to serve as directors on our Board, consistent with criteria approved by the Board, and recommending the persons

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to be nominated for election as directors, except where we are legally required by contract, law or otherwise to provide third parties with the right to nominate. The process followed by the Nominating and Corporate Governance Committee to identify and evaluate director candidates includes making requests to Board members and others for recommendations, holding meetings from time to time to evaluate biographical information and reviewing background material relating to potential candidates and interviews of selected candidates by members of the committee and the Board. The Nominating and Corporate Governance Committee is also authorized by its charter to retain search firms to identify director candidates. The qualifications, qualities and skills that the committee believes must be met by a committee-recommended nominee for a director position on our Board are as follows:

The Nominating and Corporate Governance Committee considers issues of diversity among its members in identifying and considering nominees for director, and strives where appropriate to achieve a diverse balance of backgrounds, perspectives, experience, age, gender, ethnicity and country of citizenship on the Board and its committees. The value of many forms of diversity is reflected on our Board, and we believe that our current Board represents diversity of thought, background and experience, as well as diversity of personal characteristics such as gender, ethnicity and age. The Board continually seeks out highly qualified women and minority candidates, as well as candidates with diverse backgrounds, skills and experiences as part of each search for qualified directors the Company undertakes. The Board’s commitment to diversity was recently demonstrated by the appointments to our Board of two female directors in 2019 and an additional female director in 2020. Our Board currently includes two directors who identify as women and two directors who identify as racially diverse.

A copy of the Nominating and Corporate Governance Committee’s written charter and our Corporate Governance Guidelines, which set forth our nominee requirements are publicly available on our website at www.wavelifesciences.com.

Research and Development Committee. In September 2020, our Board established the Research and Development Committee. Our Research and Development Committee met two times during the fiscal year ended December 31, 2020. The Research and Development Committee currently has three members: Dr. Corrigan (Chairman), and Drs. Kolchinsky and Verdine. Our Research and Development Committee’s role and responsibilities are set forth in the Research and Development Committee’s written charter and generally include assisting the Company in evaluating research, development and technology (“R&D”) issues and decisions; reviewing and providing feedback to the Company’s R&D management on the Company’s current and planned

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R&D programs and initiatives; serving as a sounding board for the Company’s R&D organization on research and development matters; and identifying and discussing with the Board significant emerging scientific and clinical issues and trends.

Procedures by which Shareholders may Nominate Directors

The Nominating and Corporate Governance Committee shall review and evaluate information available to it regarding candidates proposed by shareholders and shall apply the same criteria, and shall follow substantially the same process in considering them, as it does in considering other candidates. The factors generally considered by the Nominating and Corporate Governance Committee are set out in our Corporate Governance Guidelines, which are publicly available on the “For Investors & Media” section of our website at http://ir.wavelifesciences.com/ under the heading “Corporate Governance.” If a shareholder wishes to nominate a candidate to be considered by the Nominating and Corporate Governance Committee for election as a director at our 2022 Annual General Meeting of Shareholders, it must give timely notice of the nomination in writing to our General Counsel not less than 45 days prior to the date that is one year following the date on which we first mail our proxy statement relating to our 2021 AGM. All shareholder proposals should be marked for the attention of General Counsel, Wave Life Sciences Ltd., 733 Concord Avenue, Cambridge, MA 02138.

Familial Relationships

There are no familial relationships between any of our executive officers and directors.

Board Leadership Structure and Role in Risk Oversight

The positions of Chairman of the Board and Chief Executive Officer of Wave are presently separate. We believe that separating these positions allows our Chief Executive Officer to focus on our day-to-day business operations and strategy, while allowing our Chairman of the Board to lead the Board in its fundamental role of providing advice to, and independent oversight of, management. Our Board recognizes the time, effort and energy that the Chief Executive Officer is required to devote to his position in the current business environment, as well as the commitment required to serve as our Chairman, particularly as the Board’s oversight responsibilities continue to grow. Our Board also believes that this structure ensures a greater role for the independent directors in the oversight of our Company and active participation of the independent directors in setting agendas and establishing priorities and procedures for the work of our Board. The Board retains the authority to modify this leadership structure as and when appropriate to best address the Company’s unique circumstances at any given time and to serve the best interests of our shareholders.

Our Board oversees the risk management activities designed and implemented by our management. Our Board executes its oversight responsibility for risk management both directly and through its committees. Our Board also considers specific risk topics, including risks associated with our strategic plan, business operations, capital structure, information technology (“IT”), data privacy and cyber security. In addition, our Board receives detailed regular reports from members of our management team and other personnel that include assessments and potential mitigation of the risks and exposures involved with their respective areas of responsibility. Our Board receives regular updates on the evolving COVID-19 situation and engages regularly with our management team, including with regard to our operations, clinical trial enrollment, financial position and liquidity, corporate sustainability, communications strategy and employee matters, among other items. As part of its risk management oversight, our Board has been working with our management team to identify and monitor COVID-19 related risks to our Company, and is involved in strategy decisions and other actions we are taking to mitigate risks related to the impact of COVID-19 on our business.

Our Board may delegate to the Audit Committee oversight of our risk management process. Our other Board committees will also consider and address risk as they perform their respective committee responsibilities. Specifically, the Audit Committee receives regular reports from members of senior management on areas of

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material risk to the Company, including operational, financial, legal, regulatory, strategic and reputational risks, and risks related to IT, data privacy and cyber security. As part of its charter, our Audit Committee regularly discusses with management our major risk exposures, their potential financial impact on our Company and the steps we take to manage them. Our Compensation Committee assists the Board in fulfilling its oversight responsibilities with respect to the management and risks arising from our compensation policies and programs. Our Nominating and Corporate Governance Committee assists the Board in fulfilling its oversight responsibilities with respect to the management of risks associated with Board organization, membership and structure, succession planning for our directors and executive officers, and corporate governance. All committees report to the full Board as appropriate, including when a matter rises to the level of a material or enterprise level risk.

Environmental, Social and Governance Practices

As we work to build a world-class organization to deliver life-changing treatments for people affected by genetically defined diseases, we are increasingly focused on providing transparency around our environmental, social and governance (“ESG”) practices and identifying risks related thereto. The Company is committed to human capital management, patient advocacy and community outreach efforts, corporate governance, and implementing environmental sustainability initiatives.

Environmental Stewardship: We recognize the importance of taking measures to reduce our environmental footprint. As we continue to expand our operations, we have initiated certain projects to begin tracking our environmental impact, and where feasible, have taken measures to increase our sustainability efforts. Some of our efforts include our commitment to reduce, reuse or recycle where possible or appropriate; energy efficient projects to lower energy use within our office areas and laboratories; and having processes in place that send over 95% of hazardous waste to an energy conversion center.

Social Factors and Human Capital Management: Our approach to human capital management is driven by our values statement: Making an impact through innovation, inclusion, and inspiration. Our values are at the core of who we are as an organization, and what drive us to envision a brighter future for the patients and families we serve. Critical to achieving our strategic imperatives is our ability to build and retain an exceptional team in which each member plays a unique and important role. We embrace a forward-thinking philosophy that extends beyond our work, to how we are building our culture and benefits.

We recognize that maintaining an engaged and top-notch workforce and a connection with the communities we serve is critical to our success. Comradery and cohesion are at the core of who we are as a company and are integral facets of our human capital management strategy. Whether it is coming together throughout the year to connect at our town halls or participating in a global fitness challenge to support the health and well-being of our employees, we take a team approach to our work. We are inspired by each other and the possibilities of what we can achieve together. We understand that in order to drive innovation, we must continuously improve our human capital management strategies and find ways to foster engagement and growth within our organization. To this end, below are some of our initiatives:

Employee Engagement: Having an engaged and dedicated workforce is essential for us to achieve our goals. Employee engagement ensures that our employees feel passionate about the work they are doing, and with this commitment, we recognize that this is when results happen. It is more apparent than ever that we are all in this together, and as a company, we need to set up our employees for success and continue to cultivate their engagement with our company. We regularly conduct employee engagement surveys as a means of measuring employee engagement and satisfaction, and as a tool for improving our human capital management strategies going forward. Engagement is also directly correlated to the interactions our employees have with each other and their teams. Our Wave Activities Committee is a cross-functional team dedicated to organizing activities, such as themed social gatherings, volunteer opportunities, and health and wellness events that enrich our culture and bring employees together. We also work to ensure that we are deeply aligned on our corporate goals as a

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company, that functional goals are clear and transparent, and employees understand how their work contributes to the company’s success.

Employee Health and Safety: Compliance with environmental, health and safety (“EH&S”) laws and regulations forms the basis of the EH&S policy and programs we have in place, which include occupational health and safety measures that apply to all our employees, contractors and visitors. These programs detail the proactive, risk-based approach to prevent workplace injuries and protect the health and safety of our employees and the communities around us. We have implemented an EH&S management system to monitor and track the effectiveness of our programs, ensure EH&S compliance, respond to incidents and manage corrective actions to reinforce safeguards. Our training program provides training to individuals that is commensurate with their level of risk exposure and are designed to ensure that employees have the knowledge and equipment available to mitigate risk. Our cross-functional Safety Committee meets monthly to discuss any concerns and ways to improve our EH&S programs. Employees are also required to report any incidents, no matter how small, and are encouraged to voice any health or safety concerns to management or a member of our EH&S team. As we continue to monitor the evolving COVID-19 situation, we have implemented and will continue to implement measures designed to safeguard the health and safety of our employees and our patients. We formed a COVID-19 response team, a business continuity planning team and a future of work team that is continuously evaluating the guidance from federal and local authorities and has created polices and guidelines that continue to ensure our employees’ health and safety come first.

Professional Development Programs and Opportunities: Our greatest asset is our employees and we aspire to provide them with opportunities so they can continue to grow and excel in their functions and our company. Professional growth of our employees leads to engagement, development and allows us to leverage opportunities so we can hire and promote key talent from within. We have also implemented a personal development plan program and leadership and management development programs. Through development planning, we strive for employees at all levels to focus on strengthening the skills required in their current role and potentially their next role. We conduct annual performance reviews for all employees, but as importantly, we are focused on building a culture of continuous coaching, feedback and open communication between managers and their direct reports throughout the entire year. We provide managers and employees with training on how to conduct effective forward-looking performance conversations and to set effective goals that are realistic, measurable, attainable, relevant and timebound (SMART). Another example where we provide company-wide leadership and development opportunities is through the Wave Learning Series, which was developed to build awareness of all functional areas, special areas of interest or importance, timely subject matter, and to expand knowledge of industry trends and other matters of interest and relevance within the biopharmaceutical industry. The Wave Learning Series is conducted through company-wide presentations by employees at various levels, providing opportunities for development and cross-functional exposure for our employees. To further assist our employees, we also offer all full-time employees the option to participate in our Education Assistance Program, where we reimburse employees for certain tuition and eligible expenses.

Health and Well-Being: We believe that the overall well-being of our employees and ensuring that their basic health and wellness needs are met is fundamental for us to achieve success as a company. We provide an Employee Assistance Program (“EAP”) as a cost-free benefit, which is available to help employees and their household members confidentially manage everyday life, work challenges, stress, and other personal issues by providing consultation, referrals and resources. In 2020, triggered by the COVID-19 global pandemic, we partnered with our EAP provider to provide a series of virtual meetings where employees could share with one another the challenges and successes they have had during the pandemic and discuss the importance of staying resilient in the face of uncertainty.

Diversity, Equity and Inclusion: Our commitment to maintaining a top-performing company means investing in and creating ongoing opportunities for employee development in a diverse and inclusive workplace. We believe that a diverse workforce not only positively impacts our performance, fosters innovation, inspires us to achieve greater results, increases our collective capabilities and strengthens our culture, but it also cultivates an

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essential pipeline of experienced leaders for management. Hiring for diversity of thought, background and experience, and diversity of personal characteristics such as gender, race and ethnicity is intentional at Wave and continues to be an area of focus as we build and grow our workforce. Despite the historical lack of institutional emphasis on the importance of girls and women focusing on education in science, technology, engineering and mathematics (“STEM”) and the resulting disproportionate occupation by men in the STEM-educated talent pool, we have prioritized and hired a gender diverse workforce. As of December 31, 2020, women made up approximately 51% of our global workforce and approximately 43% of management. We are also committed to building a racially and ethnically diverse workforce. As of December 31, 2020, racially diverse employees (those self-identifying as Black or African American, Hispanic or Latino, Asian, or being two or more races) made up approximately 42% of our global workforce and approximately 21% of management (12% of our employees did not provide us with this information).

Community Outreach and Engagement: Our community engagement activities are focused on seeking to better understand the lives of people living with rare disease and identifying opportunities to support the rare disease community. We believe that partnering with and understanding the lives of patients and their families differentiates us and enhances our ability to discover and develop potential therapies. Through collaboration with patients, families and advocacy organizations, face-to-face meetings, and participation in patient-focused conferences and community events, we aim to broaden our understanding of the needs of patients and families and incorporate those critical learnings into every aspect of our company. These insights inform the design and execution of our clinical trials, the enrichment of our corporate culture, and the development of programs and services that make a positive impact on people’s lives. Employee volunteerism is another important component of our community engagement initiatives. We partner with advocacy and service organizations to provide opportunities for employees to contribute directly to our local communities, including through our Wave Service Day. By participating in a broad range of volunteer activities our employees donate time and resources to support patients and families in the rare disease community.

Rewards and Recognition: We have multi-tiered awards programs, including peer-to-peer recognition, that our employees use to recognize and reward one another for their contributions and achievements, taking into consideration the combination of employees who best exemplify our values and the achievement of results. We believe that providing a rewards program not only increases engagement and performance, but meaningfully recognizes those employees who go above and beyond to positively impact our company and culture.

Compensation, Equity and Benefits: We have designed a broad-based compensation program that is designed attract, retain and motivate our employees to deliver sustainable long-term value. We seek to deliver performance-driven, market competitive reward opportunities commensurate with company and individual performance. All Wave employees receive base salaries, cash bonuses, new hire equity grants and annual long-term incentive grants, in addition to our generous benefits package. We believe that providing employees with an ownership interest in the Company further strengthens the level of employee engagement. Furthermore, equity awards help align the interests of our employees with the long-term interests of our shareholders. In addition, we have an Employee Share Purchase Plan (“ESPP”), which provides our employees with an opportunity to purchase shares of our Company at a 15% discount to the market price.

Offering a highly competitive, industry-leading, benefits package is another integral piece of our compensation program. Notably, we provide our employees with access to choice and offer employees a very progressive health insurance package, with no premiums. We also maintain a 401(k) plan with matching contributions that all of our employees are eligible to participate in.

Governance, Ethics, and Compliance: Our Board is committed to robust corporate governance practices, risk oversight, shareholder rights, diversity, equity and inclusion, corporate sustainability, ethics and compliance in order to protect the long-term interests of our company, shareholders and the patients we serve. Our Board adheres to our Corporate Governance Guidelines, which present a framework for good corporate governance practices, including responsible oversight and management of the Company, effective controls and processes,

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compliance with SEC and Nasdaq Stock Market rules and regulations, maintaining an engaged board of directors and a board structure that recognizes the importance of diversity, appropriate compensation practices, and succession planning, among other matters. In 2021, we updated our Nominating and Corporate Governance Committee charter to reflect the Nominating and Corporate Governance Committee’s oversight of the Company’s ESG strategy, initiatives and policies and oversight of the Company’s strategies and policies related to HCM and DEI. A copy of the Corporate Governance Guidelines is publicly available on our website at www.wavelifesciences.com.

We will continue to evolve and strengthen our human capital management strategies, increase our environmental efforts, maintain and continue to improve our corporate governance practices, and anticipate reporting on other corporate sustainability measures over time.

Hedging and Pledging Policies

We maintain a policy that, among other things, prohibits all officers, including our named executive officers, directors and employees from engaging in “hedging” transactions with respect to our ordinary shares. This includes short sales, hedging of share ownership positions, transactions in straddles, collars or other similar risk reduction or hedging devices, and transactions involving derivative securities relating to our ordinary shares. In addition, they are also prohibited from pledging the Company’s securities.

Shareholder Communications to the Board

Generally, shareholders who have questions or concerns or who wish to address questions regarding our business directly with the Board, or any individual director, should direct his or her questions in writing to IR@wavelifesci.com. Communications will be distributed to the Board, or to any individual director or directors as appropriate, depending on the facts and circumstances outlined in the communications. Items that are unrelated to the duties and responsibilities of the Board may be excluded, such as junk mail and mass mailings, resumes and other forms of job inquiries, surveys and solicitations or advertisements. In addition, any material that is unduly hostile, threatening, or illegal in nature may be excluded, provided that any communication that is filtered out will be made available to any outside director upon request.

Executive Officers

Set forth below is information as of June 15, 2021 regarding our executive officers who are not also directors. We have employment agreements with certain of our executive officers and all of our executive officers are at-will employees.

Christopher Francis, Ph.D. has served as our Senior Vice President, Corporate Development, Head of Emerging Areas since May 2017. During the period January 2017 to May 2017, Dr. Francis served as our Senior Vice President, Corporate Development & Portfolio Management. Prior to that, Dr. Francis served as our Vice President, Head of Business Development since April 2014. Prior to joining us, Dr. Francis held senior operational, strategic and business development roles within GlaxoSmithKline Oncology from 2009 to 2014 and was a member of the team that established GlaxoSmithKline’s Rare Disease Unit. Before GlaxoSmithKline, Dr. Francis was a health care private equity associate at Two River LLC from 2008 to 2009. He began his career

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in pharmaceutical pricing and reimbursement consulting at IMS Health. Dr. Francis earned undergraduate and graduate degrees in Biochemistry and Molecular Biology from the University of Melbourne and was a doctoral research associate at the University of Cambridge.

Kyle Moran has served as our Chief Financial Officer since December 2020. Prior to this appointment, Mr. Moran served as our Vice President, Head of Finance from July 2014 to August 2016; Vice President, Technical Operations from August 2016 to December 2017; Senior Vice President, Technical Operations, from December 2017 to November 2018; Senior Vice President, Operations and Business Analytics from November 2018 to January 2020; and most recently as Senior Vice President, Finance and Operations from January 2020 through his promotion to Chief Financial Officer in December 2020. Prior to joining us, Mr. Moran served as Chief Financial Officer and Chief Operating Officer of Veroha, Inc., an information assurance software company focused on electronic notary solutions, from 2010 to 2014. He was also a founding partner of Context Financial Services, LLC, a boutique consulting firm that provided interim CFO-services to start-up and middle market companies undergoing rapid expansion or needing expert financial counsel and worked there from 2006 to 2014. In addition, Mr. Moran held senior operational and financial roles at leading global financial services firms, including Zurich Scudder Investments, JPMorgan Chase and Putnam Investments. Mr. Moran holds a bachelor’s degree in Economics from Boston College and attended the Lemberg Master’s Program in International Economics and Finance at Brandeis University. Mr. Moran is a Chartered Financial Analyst.

Michael Panzara, M.D., MPH has served as our Chief Medical Officer, Head of Therapeutics Discovery and Development since May 2020. During the period of November 2018 through April 2020, Dr. Panzara served as our Chief Medical Officer. During the period of July 2016 to October 2018, Dr. Panzara served as our Franchise Lead, Neurology. Prior to joining us, Dr. Panzara served in various roles at Sanofi Genzyme (and Genzyme Corporation before its merger with Sanofi in 2011) from 2009 to July 2016, most recently serving as Head of the Multiple Sclerosis, Neurology and Ophthalmology Therapeutic Area for Global Development and prior to that, serving as Group Vice President, Therapeutic Area Head, Multiple Sclerosis and Neurology. Prior to joining Genzyme, Dr. Panzara served in roles of increasing responsibility at Biogen, including Vice President, Chief Medical Officer, Neurology from 2006 to 2009 and in various roles in the Medical Research group from 2001 to 2006. In addition, from 1999 to 2011, Dr. Panzara was an Instructor in Neurology at Harvard Medical School and an Assistant in Neurology at Massachusetts General Hospital (MGH). He trained in neurology at MGH from 1994 to 1998, and completed his post-doctoral training in immunology and rheumatology at Brigham and Women’s Hospital. Dr. Panzara holds a bachelor’s degree from the University of Pennsylvania, a medical degree from Stanford University School of Medicine, and a master’s degree in public health from the Harvard School of Public Health.

Chandra Vargeese, Ph.D. has served as our Chief Technology Officer since May 2020. During the period of August 2014 to April 2020, Dr. Vargeese served as Senior Vice President, Head of Drug Discovery. Before joining us, Dr. Vargeese served as Novartis’ Executive Director and Head of RNA Chemistry and Delivery, a position she held from 2008 to 2014. Prior to joining Novartis, Dr. Vargeese led siRNA delivery in the RNA Therapeutics division at Merck & Co., where she served as Senior Director and Head of RNA Chemistry and Delivery. Dr. Vargeese joined Merck through its acquisition of Sirna Therapeutics, where she was Vice President of Chemistry. Before Sirna, Dr. Vargeese served as Associate Director of Chemistry at NeXstar Pharmaceuticals and is the co-inventor of Macugen (pegaptanib), an approved therapy for treating wet AMD. Dr. Vargeese earned a Ph.D. in Organic Chemistry at the Indian Institute of Science, Bangalore, India and completed post-doctoral work at the University of Rhode Island.

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EXECUTIVE OFFICER AND DIRECTOR COMPENSATION

Executive Officer Compensation

The Company is a “smaller reporting company” under Item 10 of Regulation S-K promulgated under the Exchange Act, and the following compensation disclosure is intended to comply with the requirements applicable to smaller reporting companies.

Summary Compensation Table

The following table shows the total compensation paid or accrued during the last two fiscal years ended December 31, 2020 and 2019 for (i) our President and Chief Executive Officer; and (ii) our two next most highly compensated executive officers, who earned more than $100,000 during the fiscal year ended December 31, 2020 and were serving as executive officers as of such date. Collectively, these three individuals are our “named executive officers” or “NEOs” for purposes of this proxy statement.

Narrative to Summary Compensation Table

Our Compensation Committee creates the policies that govern base salary, annual cash performance-based incentives, our long-term incentive program and other compensation and benefits for our named executive officers. Our Compensation Committee reviews and discusses our executive officers’ proposed compensation with the Chief Executive Officer for all executives other than the Chief Executive Officer. The Chief Executive Officer’s compensation is determined by the Compensation Committee.

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In determining executive officer compensation, our Compensation Committee, with the assistance of its independent compensation consultant, Radford, a business unit of AON plc and an independent executive compensation consulting firm, evaluates the market competitiveness of compensation for each of our named executive officers in order to guide target compensation decisions for the coming year. Our Compensation Committee references a peer group of publicly traded companies in the biopharmaceutical industry for purposes of gathering data to compare with our existing executive compensation levels and practices and as context for future compensation decisions. Our Compensation Committee reviews and updates the compensation peer group each year, as appropriate, to include companies that the Compensation Committee believes are competitors for executive talent and that are similar to us in terms of their stage of development, therapeutic focus, market capitalization, number of employees, structure, financial profile and geographic proximity to the Cambridge biotech cluster, as applicable. We also recognize that it is unlikely for companies to align equally on all factors, so we consider companies that meet a majority of the criteria. Due to the nature of our business, we compete for executive talent with many companies much larger than we are. Our Compensation Committee considers peer group and other industry compensation data and the recommendations of our compensation consultant when making decisions related to executive compensation, ultimately giving consideration to the competitiveness of our compensation program, internal perceptions of equity and individual performance and role. Our Compensation Committee finds comparative data from our peer group to be useful in setting and adjusting executive compensation, but it does not target our programs or any particular element of compensation to be at or within a particular percentile or range compared to our peers. Our Compensation Committee uses the peer group data primarily to ensure that our executive compensation program and its constituent elements are and remain competitive in relation to our peers, and applies judgment and discretion in establishing targeted compensation levels taking into account not only competitive market data but also the experience of the executive, scope of responsibility, critical skill sets and expertise.

Employment Agreements with Our Named Executive Officers

Paul B. Bolno, M.D., MBA In May 2020, we entered into an amended and restated employment agreement with Dr. Bolno, pursuant to which he serves as our President and Chief Executive Officer. The employment agreement amends and restates the prior employment arrangement between the Company and Dr. Bolno. As of January 1, 2020, Dr. Bolno’s annual base salary was $578,977, and his annual target bonus percentage is up to 65% of his annual base salary, subject to the achievement of annual performance milestones defined by our Board in its sole discretion. Effective January 1, 2021, Dr. Bolno’s annual base salary was increased to $597,000. In February 2021, in recognition of his 2020 performance supporting the achievement of our corporate goals discussed below, Dr. Bolno received a cash bonus of $376,335 that was equal to 100% of his 2020 target bonus, 65% of his annual base salary. In addition, in February 2021, he received an option to purchase 200,000 of our ordinary shares and 150,000 RSUs under our 2014 Equity Incentive Plan as 2021 long-term incentive plan (“2021 LTIP”) awards, each award vests over a two-year period, 50% on the first and second anniversaries.

Pursuant to Dr. Bolno’s employment agreement, if we terminate his employment without cause or if he terminates his employment for good reason, Dr. Bolno will be entitled to receive continued payment of his then-current annual base salary for 18 months following termination; continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 18 months following termination or until he commences new employment; and the payment of a separation bonus equal to his then annual target bonus opportunity prorated through the termination date. In addition, if a change of control occurs and within one year following the change of control Dr. Bolno is terminated without cause or if Dr. Bolno terminates his employment for good reason, he will be entitled to receive a lump sum cash payment equal to 18 months of his then-current annual base salary; continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 18 months following termination or until he commences new employment; and the payment of a separation bonus equal to his then annual target bonus opportunity. Pursuant to applicable equity agreements with Dr. Bolno, all unvested shares underlying outstanding options and RSUs that were granted to him on or before December 31, 2017 will become fully vested upon a change of control; and any such equity compensation granted to him on or after January 1, 2018 will become fully vested upon his termination

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without cause or for good reason within 12 months following a change of control. Receipt of the severance and change of control benefits described above are subject to execution of a release of claims against the Company and compliance with certain restrictive covenants following the termination of his employment.

Michael Panzara, M.D., MPH In July 2016, we entered into an employment agreement with Dr. Panzara, pursuant to which he now serves as our Chief Medical Officer, Head of Therapeutics Discovery and Development. As of January 1, 2020, Dr. Panzara’s annual base salary was $460,860, and his annual target bonus percentage was up to 40% of his annual base salary, subject to the achievement of annual performance milestones defined by our Board in its sole discretion. Effective January 1, 2021, Dr. Panzara’s annual base salary was increased to $471,000, and his annual target bonus percentage was increased to 45% of his annual salary. In February 2021, in recognition of his 2020 performance supporting the achievement of our corporate goals discussed below, Dr. Panzara received a cash bonus of $184,344 that was equal to 100% of his 2020 target bonus, 40% of his base salary. In addition, he received an option to purchase 50,000 of our ordinary shares and 50,000 RSUs under our 2014 Equity Incentive Plan as 2021 LTIP awards, each award vests over a two-year period, 50% on the first and second anniversaries.

Pursuant to Dr. Panzara’s employment agreement, if we terminate his employment without cause or if he terminates his employment for good reason, Dr. Panzara will be entitled to receive continued payment of his then-current annual base salary for 12 months following termination and continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 12 months following termination or until he commences new employment. In addition, if a change of control occurs and within one year following the change of control Dr. Panzara is terminated without cause or Dr. Panzara terminates his employment for good reason, he will be entitled to receive a lump sum cash payment equal to 12 months of his then-current annual base salary; continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 12 months following termination or until he commences new employment; and the payment of a separation bonus equal to his then annual target bonus opportunity prorated through his termination date. Pursuant to applicable equity agreements with Dr. Panzara, all unvested shares underlying outstanding options and RSUs that were granted to him on or before December 31, 2017 will become fully vested upon a change of control; and any such equity compensation granted to him on or after January 1, 2018 will become fully vested upon his termination without cause or for good reason within 12 months following a change of control. Receipt of the severance and change of control benefits described above are subject to execution of a release of claims against the Company and compliance with certain restrictive covenants following the termination of his employment.

Chandra Vargeese, Ph.D. In May 2020, we entered into an amended and restated employment agreement with Dr. Vargeese, pursuant to which she serves as our Chief Technology Officer. The employment agreement amends and restates the prior employment arrangement between the Company and Dr. Vargeese. As of January 1, 2020, Dr. Vargeese’s annual base salary was $434,520, and her annual target bonus percentage was up to 40% of her annual base salary, subject to the achievement of annual performance milestones defined by our Board in its sole discretion. Effective January 1, 2021, Dr. Vargeese’s annual base salary was increased to $444,000, and her annual target bonus percentage was increased to 45% of her annual base salary. In February 2021, in recognition of her 2020 performance supporting the achievement of our corporate goals discussed below, Dr. Vargeese received a cash bonus of $173,808 that was equal to 100% of her 2020 target bonus, 40% of her base salary. In addition, she received an option to purchase 50,000 of our ordinary shares and 50,000 RSUs under our 2014 Equity Incentive Plan as 2021 LTIP awards, each award vests over a two-year period, 50% on the first and second anniversaries.

Pursuant to Dr. Vargeese’s employment agreement, if we terminate her employment without cause or if she terminates her employment for good reason, Dr. Vargeese will be entitled to receive continued payment of her then-current annual base salary for 12 months following termination; continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 12 months following termination or until she commences new employment; and the payment of a separation bonus equal to her then annual target

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bonus opportunity prorated through the termination date. In addition, if a change of control occurs and within one year following the change of control Dr. Vargeese is terminated without cause or if Dr. Vargeese terminates her employment for good reason, she will be entitled to receive a lump sum cash payment equal to 12 months of her then-current annual base salary; continued payment of health insurance premiums at the Company’s then normal rate of contribution until the earlier of 12 months following termination or until she commences new employment; and the payment of a separation bonus equal to her then annual target bonus opportunity. Pursuant to applicable equity agreements with Dr. Vargeese, all unvested shares underlying outstanding options and RSUs that were granted to her on or before December 31, 2017 will become fully vested upon a change of control; and any such equity compensation granted to her on or after January 1, 2018 will become fully vested upon her termination without cause or for good reason within 12 months following a change of control. Receipt of the severance and change of control benefits described above are subject to execution of a release of claims against the Company and compliance with certain restrictive covenants following the termination of her employment.

Other Provisions Applicable to Named Executive Officers

In addition, as a condition of their employment, each of our named executive officers has entered into a non-competition and non-solicitation agreement pursuant to which he or she has agreed not to compete with us for a period of 12 months following the termination of his or her employment. All agreements generally provide for at-will employment and that our named executive officers are eligible to participate in employee benefit plans of general applicability to other senior executives, which we maintain from time to time.

For purposes of change of control benefits included in the Company’s employment agreements with its named executive officers, change of control is defined as follows: (A) a merger or consolidation of the Company whether or not approved by the Board, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or the parent of such corporation) more than 50% of the total voting power represented by the voting securities of the Company or such surviving entity or parent of such corporation, as the case may be, outstanding immediately after such merger or consolidation; or (B) the sale or disposition by the Company of all or substantially all of the Company’s assets in a transaction requiring shareholder approval.

Base Salaries

Annual base salary is designed to provide a competitive fixed rate of pay, recognizing different levels of responsibility and performance. Actual salaries reflect the judgment and consideration of numerous factors by the Compensation Committee. These factors include the NEO’s experience, importance of position, performance, comparative survey data, internal pay equity, scope of responsibilities, expertise, the criticality of the NEO’s position within the Company, the other elements of compensation received by the NEO, and the NEO’s compensation in comparison to similarly situated executive officers at comparable companies in our peer group.

Annual Cash Incentive Program

Our executive officers are eligible to receive annual cash incentive awards, with the target bonus opportunity for 2020 determined as a percentage of their base salary. At the beginning of 2020, our Board approved ambitious corporate goals and objectives that our Compensation Committee then used to design our annual cash incentive program for 2020. Under this program, the Compensation Committee determined that the corporate goals would apply uniformly to all of our executive officers. Our 2020 corporate goals, plus additional obstacles that we overcame as a result of the COVID-19 global pandemic, that were assessed to determine our 2020 corporate performance are set forth below:

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Based on our Board’s assessment and consideration of the relative weighting and importance of our goals, our Board determined that we achieved 100% of our 2020 corporate goals. The Compensation Committee then determined that bonuses for 2020 performance be paid to our named executive officers based on these results.

Long-Term Incentive Compensation

2020 Long-Term Incentive Program (“2020 LTIP”)

In 2020, the long-term incentive component of the compensation of our NEOs consisted solely of share options. These share options were granted to each of our named executive officers by our Compensation Committee at a regularly scheduled meeting on March 3, 2020, at an exercise price of $8.17 per share, and vest over a two-year term, with 50% vesting on February 1, 2021 and the remainder vesting on February 1, 2022. The Compensation Committee chose this two-year vesting schedule over our standard four-year vesting schedule as a means of retention and because the 2019 Performance-Based RSUs became less likely to vest in the near-term due to the discontinuation of our suvodirsen program in December 2019, but the performance criteria remain relevant to our primary strategic imperative to deliver life-changing treatments for people battling devastating

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diseases and will continue to incentivize performance albeit over a longer period of time. In lieu of a cash salary increase for the 2020 calendar year, Dr. Bolno opted to receive an additional 3,000 share options with the same vesting schedule and exercise price as his other 2020 LTIP option grant.

2019 Performance-Based RSUs and 2021 Amended and Restated Performance-Based RSUs

In March 2019, the Compensation Committee approved the grant of performance-based RSUs to our employees, including our NEOs, that vest based on two separate performance milestones: 80% of the award will vest upon receipt of the first regulatory approval of a Wave drug product by the U.S. Food and Drug Administration or European Medicines Agency (the “Regulatory Approval Milestone”); and 20% of the award will vest upon the first commercial sale of a Wave drug product (the “Commercial Sale Milestone”), in each case, occurring by March 7, 2029, subject to continuous service (the “2019 Performance-Based RSUs”).

In order to address concerns raised regarding the long-dated nature of the 2019 Performance-Based RSUs and their ability to deliver real retentive value, the Compensation Committee decided to enhance the retentive impact of the awards by incorporating an additional milestone focused on driving nearer term execution of key strategic goals to build shareholder value in the nearer term. Accordingly, in March 2021, the Compensation Committee approved an amendment and restatement of all outstanding 2019 Performance-Based RSUs to add a third performance milestone to the two existing performance milestones. If the new performance milestone, the PN Chemistry Milestone (as defined below), is achieved prior to either of the Regulatory Approval Milestone or the Commercial Sale Milestone, then 50% of the award will be earned upon public disclosure of the achievement of clinical proof of concept of a molecule containing Wave’s PN backbone chemistry modifications (the “PN Chemistry Milestone”) and the percentages applicable to the Regulatory Approval Milestone or the Commercial Sale Milestone shall be reduced to 40% and 10%, respectively. This modification did not result in any incremental accounting expense, as the grant date fair value of the award on the modification date (similar to the original grant date fair value) remained at $0 based on the probable outcome of the performance conditions as of the modification date.

401(k) Plan

We maintain a 401(k) plan that is intended to qualify under Section 401(k) of the Internal Revenue Code of 1986, as amended (the “Code”). In general, all of our employees, including our named executive officers, are eligible to participate in the 401(k) plan. Under the 401(k) plan, employees may elect to reduce their current compensation by up to the statutorily prescribed annual limit, which was equal to $19,500 in 2020, and to have the amount of such reduction contributed to the 401(k) plan. We currently match 50% of an employee’s 401(k) contributions up to a maximum of 6% of the participant’s compensation. Matching contributions are 100% vested upon completion of one year of service with the Company. In addition, employees who turn age 50 before the end of any calendar year may also defer up to an additional $6,500, and these catch-up contributions are eligible for matching contributions. Matching contributions made to each of our named executive officers are included in the “Summary Compensation Table” above.

2014 Equity Incentive Plan

Our 2014 Equity Incentive Plan was amended on August 10, 2017, following receipt of shareholder approval at our 2017 Annual General Meeting. Accordingly, based on approval at our 2017 Annual General Meeting, our Board and shareholders authorized 6,064,544 ordinary shares for the granting of incentive options, non-qualified options (“NQSOs”), share appreciation rights and restricted share unit awards, plus annual increases on the first day of July 2018, 2019 and 2020 equal to the lesser of (A) 3% of the ordinary shares outstanding on the day prior to the increase; and (B) such lesser number of ordinary shares as determined by the Board; provided that no more than 10,000,000 ordinary shares may be issued upon the exercise of incentive share options. On July 1, 2018, 2019 and 2020, the 2014 Equity Incentive Plan was increased by 878,800, 1,027,987, and 1,071,964 ordinary shares, respectively. The maximum number of ordinary shares with respect to awards which may be granted to

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any participant in any fiscal year under the 2014 Equity Incentive Plan is 600,000 shares. In the event of a share dividend, split, recapitalization or reorganization or other change in capital structure, our Board will make appropriate adjustments to these amounts.

Any shares subject to an award that is canceled, forfeited or expires prior to exercise or realization, either in full or in part, will again become available for issuance under the 2014 Equity Incentive Plan. However, shares subject to an award under the 2014 Equity Incentive Plan will not again be made available for issuance or delivery under the 2014 Equity Incentive Plan if such shares are (a) shares tendered in payment of an option; (b) shares delivered or withheld by us to satisfy any tax withholding obligation; or (c) shares covered by a share-settled share appreciation right or other awards that were not issued upon the settlement of the award.

If we are acquired, our Board (or Compensation Committee) will with respect to options and share appreciation rights: (i) make appropriate provision for the continuation of the option or share appreciation right by substituting on an equitable basis for the ordinary shares then subject to such option or share appreciation right either the consideration payable with respect to the outstanding ordinary shares in connection with the corporate transaction or securities of any successor or acquiring entity; (ii) cancel or arrange for the cancellation of the options or share appreciation rights, to the extent not vested or exercised prior to the effective time of the transaction, in exchange for a payment in cash or ordinary shares as determined by the Board, in an amount equal to the amount by which the then-fair market value of the ordinary shares subject to such vested option or share appreciation right exceeds the exercise price; or (iii) after giving holders an opportunity to exercise to the extent vested their outstanding options or share appreciation rights, terminate any or all unexercised options and share appreciation rights at such time as the Board deems appropriate. If we are acquired, our Board (or Compensation Committee) will with respect to outstanding restricted awards make appropriate provision for the continuation of such restricted awards on the same terms and conditions by substituting on an equitable basis for the ordinary shares then subject to such restricted awards either the consideration payable with respect to the outstanding ordinary shares in connection with the transaction or securities of any successor or acquiring entity. In lieu of the foregoing, if we are acquired, the Board may provide that, upon consummation of the acquisition, each outstanding restricted award shall be terminated in exchange for payment of an amount equal to the consideration payable upon consummation of such transaction to a holder of the number of ordinary shares comprising such restricted award to the extent then vested.

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Outstanding Equity Awards at 2020 Fiscal Year-End

The following table shows grants of options and grants of unvested restricted share unit awards outstanding on the last day of the fiscal year ended December 31, 2020 to each of the executive officers named in the Summary Compensation Table.

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Director Compensation

The following table shows the total compensation paid or accrued during the fiscal year ended December 31, 2020 to each of our non-employee directors. Directors who are also employees are not compensated for their service on our Board.

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The following table shows the aggregate number of shares subject to options held by each of our non-employee directors as of December 31, 2020.

At our 2020 Annual General Meeting of Shareholders, our shareholders overwhelmingly approved our 2020 Non-Employee Director Compensation Policy, under which our directors were compensated for their service as directors, including as members of the various committees of our Board on which they serve, for the Board service period that commenced on the date of our 2020 Annual General Meeting of Shareholders and runs through the date of our 2021 AGM. The terms of the 2020 Non-Employee Director Compensation Policy were as follows:

Additional pro rata cash compensation of the annual cash compensation amounts set forth above shall be made, as applicable, to (i) any director who ceases to be a director, Chairman of the Board or member or chairman of any committee of the Board and (ii) any new non-employee director who is appointed by the Board, any independent director who is appointed to the position of Chairman of the Board or chairman of any such committee of the Board or any independent director who is appointed to serve on any such committee of the Board, for their services rendered as a director and/or committee member, for the portion of the year in which such director so served. In Proposal 3, as required by Singapore law, we are now asking our shareholders to approve the terms of a 2021 non-employee director compensation policy and related compensation matters. Please see Proposal 3 below.

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EQUITY COMPENSATION PLAN INFORMATION

The following table provides certain information with respect to our equity compensation plans in effect as of December 31, 2020.

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REPORT OF AUDIT COMMITTEE

The Audit Committee of the Board of Directors has furnished the following report:

The Audit Committee assists the Board in overseeing and monitoring the integrity of our financial reporting process, compliance with legal and regulatory requirements, the quality of internal and external audit processes, and related person transaction policies and procedures. The committee’s role and responsibilities are set forth in the Audit Committee charter adopted by the Board, which is available on our website at www.wavelifesciences.com. The Audit Committee reviews and reassesses its charter annually and recommends any changes to the Board for approval. The Audit Committee is responsible for overseeing our overall financial reporting process, for establishing and maintaining adequate internal control over financial reporting, and for the appointment, compensation, retention and oversight of the work of KPMG LLP. In fulfilling its responsibilities for the financial statements for the fiscal year ended December 31, 2020, the Audit Committee took the following actions:

Based on the Audit Committee’s review of the audited financial statements and discussions with management and KPMG LLP, the Audit Committee recommended to the Board that the audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 for filing with the SEC.

Members of the Audit Committee

Christian Henry, Chair

Mark H.N. Corrigan, M.D.

Adrian Rawcliffe

Aik Na Tan

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CERTAIN RELATIONSHIPS AND RELATED PERSON TRANSACTIONS

The following includes a summary of transactions since January 1, 2019 to which we have been a party, in which the amount involved in the transaction exceeded the lesser of $120,000 or one percent of the average of our total assets at December 31, 2020 and 2019, and in which any of our directors, executive officers or beneficial owners of more than 5% of our ordinary shares, or any member of the immediate family of any of the foregoing persons had or will have a direct or indirect material interest, other than equity and other compensation, termination, change in control and other arrangements, which are described under, “Executive Officer and Director Compensation.” We refer to such transactions as “related party transactions” or “related person transactions” and such persons as “related parties” or “related persons.” With the approval of our Board, we have engaged in the related party transactions described below.

Related Person Transaction Policy

Our Board has adopted a written related person transaction policy that requires future transactions between us and any director, executive officer, holder of 5% or more of any class of our capital stock or any member of the immediate family of, or entities affiliated with, any of them, or any other related persons, as defined in Item 404 of Regulation S-K, or their affiliates, in which the amount involved is equal to or greater than $120,000, be approved in advance by our Audit Committee, or if Audit Committee approval would be inappropriate, by another independent body of our Board. In approving or rejecting such proposed related person transaction, the committee is to consider all available information deemed relevant by the committee, including, but not limited to, the extent of the related person’s interest in the transaction and whether the transaction is on terms no less favorable to us than terms we could have generally obtained from an unaffiliated third party under the same or similar circumstances. The committee approves only those transactions that, in light of known circumstances, are deemed to be in our best interests. In the event that any member of the committee is not a disinterested person with respect to the related person transaction under review, that member is excluded from the review and approval or rejection of such related person transaction; provided, however, that such committee member may be counted in determining the presence of a quorum at the meeting of the committee at which such transaction is considered. If we become aware of an existing related person transaction which has not been approved under the policy, the matter will be referred to the committee. The committee evaluates all options available, including ratification, revision or termination of such transaction. In the event that management determines that it is impractical or undesirable to wait until a meeting of the committee to consummate a related person transaction, the chair of the committee may approve such transaction in accordance with the related person transaction approval policy. Any such approval must be reported to the committee at the next regularly scheduled meeting.

Indemnification Agreements with Officers and Directors

We have entered into deeds of indemnity with our directors and our executive officers. These agreements will require us to indemnify these individuals to the fullest extent permitted under Singapore law against liabilities that may arise by reason of their service to us as a result of any proceeding against them as to which they could be indemnified. These indemnification rights shall not be exclusive of any other right which an indemnified person may have or hereafter acquire under any statute, provision of our Constitution, agreement, vote of shareholders or disinterested directors or otherwise if he or she is subsequently found to have been negligent or otherwise have breached his or her trust or fiduciary duties or to be in default thereof, or where the Singapore courts have declined to grant relief.

Participation in Our Public Offering

On January 28, 2019, we closed a follow-on underwritten public offering of 3,950,000 ordinary shares for gross proceeds of $150.1 million, and on February 26, 2019, we closed on the sale of an additional 592,500 ordinary shares pursuant to the underwriters’ option to purchase additional ordinary shares (on the same terms and conditions as the initial closing) for gross proceeds of an additional $22.5 million. Affiliates of RA Capital

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Management, L.P. (“RA Capital”) purchased 263,158 ordinary shares in the public offering at the public offering price of $38.00 per share. RA Capital is the investment manager of RA Capital Healthcare Fund, L.P., one of our principal shareholders. Peter Kolchinsky, Ph.D., a member of our Board, is the Managing Partner of RA Capital.

Consulting Agreement with Gregory L. Verdine, Ph.D.

Gregory L. Verdine, Ph.D., a member of our Board, entered into a consulting agreement with Wave Life Sciences USA, Inc. (“Wave USA”), our wholly owned subsidiary, dated as of April 1, 2012, pursuant to which Dr. Verdine serves as a scientific advisor. The consulting agreement does not have a specified term and may be terminated by either party upon 14 days’ prior written notice. Wave USA pays Dr. Verdine $12,500 per month and, in each of 2019 and 2020, Dr. Verdine was paid an aggregate of $150,000 under this agreement.

Agreements with Pfizer and its Affiliate

On May 5, 2016, we entered into a Research, License and Option Agreement with Pfizer Inc. (“Pfizer”), which we refer to herein as the “Pfizer Collaboration Agreement.” Simultaneously with the entry into the Pfizer Collaboration Agreement, on May 5, 2016, we entered into a Share Purchase Agreement (the “Pfizer Equity Agreement”) with C.P. Pharmaceuticals International C.V., an affiliate of Pfizer (the “Pfizer Affiliate”). We refer to the Pfizer Collaboration Agreement and the Pfizer Equity Agreement herein collectively as the “Pfizer Agreements.” Pursuant to the terms of the Pfizer Collaboration Agreement, we and Pfizer agreed to collaborate on the discovery, development and commercialization of stereopure oligonucleotide therapeutics for up to five programs (each, a “Pfizer Program”), each directed at a genetically-defined hepatic target selected by Pfizer. Under the Pfizer Collaboration Agreement, the parties agreed to collaborate during a four-year research term. The research term for the Pfizer Collaboration Agreement ended in May 2020. Under the terms of the Pfizer Agreements, Pfizer paid us $40.0 million upfront, $30.0 million of which was in the form of an equity investment in our ordinary shares. Under the Pfizer Equity Agreement, we issued 1,875,000 ordinary shares (the “Pfizer Shares”) to the Pfizer Affiliate at a purchase price of $16.00 per share, for an aggregate purchase price of $30.0 million. Under the terms of the Pfizer Equity Agreement, the Pfizer Shares were subject to a lock-up restriction, such that the Pfizer Affiliate agreed not to, nor cause its affiliates to, without our prior approval, sell, transfer or otherwise dispose of the Pfizer Shares until certain specified periods of time after the effective date of the Pfizer Equity Agreement. We also agreed to provide the Pfizer Affiliate with registration rights, as described under “Registration Rights under our Share Purchase Agreement with Pfizer” below.

Registration Rights under our Share Purchase Agreement with Pfizer

Under the terms of our Pfizer Equity Agreement, the Pfizer Affiliate agreed that the Pfizer Shares were subject to a lock-up restriction, such that the Pfizer Affiliate agreed not to, nor cause its affiliates to, without our prior approval, sell, transfer or otherwise dispose of the Pfizer Shares until certain specified periods of time after the effective date of the Pfizer Equity Agreement. For a certain period following the expiration of the lock-up period, subject to certain conditions and limitations, we agreed to provide certain demand registration rights to the Pfizer Affiliate in order to register all or a portion of the Pfizer Shares purchased by the Pfizer Affiliate. We also provided the Pfizer Affiliate with certain “piggyback” registration rights for a certain period following the expiration of the lock-up period, subject to certain conditions and limitations, such that when we propose to register our ordinary shares for our account, the Pfizer Affiliate will have the right to include some or all of the Pfizer Shares in such registration. The Pfizer Equity Agreement also contains other customary terms and conditions of the parties with respect to the registration of the Pfizer Shares.

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PROPOSAL 1: ELECTION OF DIRECTORS

Our Constitution requires that each of our directors retire at each annual general meeting of our shareholders, and each retiring director is then eligible for re-election. The Board of Directors, acting on the recommendation of the Nominating and Corporate Governance Committee, has nominated each of Paul B. Bolno, M.D., MBA, Mark H.N. Corrigan, M.D., Christian Henry, Peter Kolchinsky, Ph.D., Adrian Rawcliffe, Ken Takanashi, Aik Na Tan, Gregory L. Verdine, Ph.D. and Heidi L. Wagner, J.D. for election at the 2021 AGM. Voting on the election of each nominee will be done separately. If each such nominee is elected, he or she will serve on our Board until our 2022 Annual General Meeting of Shareholders and until his or her successor has been elected and qualified.

Pursuant to the Singapore Companies Act and our Constitution, our Board must have at least one director who is ordinarily resident in Singapore. Ms. Tan is our Singapore resident director. Due to the Singapore Companies Act requirement that we have at least one director who is ordinarily resident in Singapore in office at all times, the sole resident director cannot resign or step down unless there is at least one other resident director. In the event that Ms. Tan is not elected at the 2021 AGM, she will continue in office after the 2021 AGM as a member of our Board until her qualifying successor (i.e., a Singapore resident director) is appointed.

Each of the nominees has indicated a willingness to continue to serve as director, if elected. We have no reason to believe that any nominee will be unable or unwilling to serve as a director.

Each nominee for director who receives the affirmative vote of a majority of the votes cast by the holders of ordinary shares voting either in person or by proxy at the 2021 AGM will be elected (meaning the number of shares voted “for” a nominee must exceed the number of shares voted “against” such nominee).

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE ELECTION OF PAUL B. BOLNO, M.D., MBA, MARK H.N. CORRIGAN, M.D., CHRISTIAN HENRY, PETER KOLCHINSKY, PH.D., ADRIAN RAWCLIFFE, KEN TAKANASHI, AIK NA TAN, GREGORY L. VERDINE, PH.D. AND HEIDI L. WAGNER, J.D. AS DIRECTORS, AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR THEREOF UNLESS A SHAREHOLDER HAS INDICATED OTHERWISE ON THE PROXY CARD.

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PROPOSAL 2: INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM AND

INDEPENDENT SINGAPORE AUDITOR AND

AUDITOR REMUNERATION

The Audit Committee has appointed KPMG LLP as our independent registered public accounting firm and independent Singapore auditor to audit our financial statements for the fiscal year ending December 31, 2021.

For the fiscal year ended December 31, 2020, KPMG LLP was our independent registered public accounting firm and independent Singapore auditor of our Singapore Statutory Financial Statements. Pursuant to Section 205(2) and 205(4) of the Singapore Companies Act, any re-appointment after the initial appointment of our independent Singapore auditor, or its subsequent removal, requires the approval of our shareholders. The Board proposes that the shareholders approve the re-appointment of KPMG LLP as our independent registered public accounting firm and independent Singapore auditor of our Singapore Statutory Financial Statements.

We expect that representatives of KPMG LLP will be present at the 2021 AGM, will be able to make a statement if they so desire, and will be available to respond to appropriate questions.

Pursuant to Section 205(16) of the Singapore Companies Act, the remuneration of a company’s auditor shall be fixed by the shareholders in a general meeting or the shareholders may authorize directors to fix the remuneration. Our Board believes that it is appropriate for the Audit Committee, as part of its oversight responsibilities, to fix the auditor’s remuneration. Our Board therefore also proposes that the shareholders authorize the Audit Committee to fix KPMG LLP’s remuneration for services rendered as our independent registered public accounting firm and independent Singapore auditor through the date of our 2022 Annual General Meeting of Shareholders.

In deciding to re-appoint KPMG LLP, the Audit Committee reviewed auditor independence issues and existing commercial relationships with KPMG LLP and concluded that KPMG LLP has no commercial relationship with the Company that would impair its independence for the fiscal year ending December 31, 2021.

Principal Accounting Firm Fees and Services

The following table presents fees for professional audit services rendered by KPMG LLP, our independent registered public accounting firm, for the services described in the table. Fees disclosed below include fees actually billed or expected to be billed for services pertaining to the applicable fiscal year.

Policy on Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services of Independent Public Accounting Firm

In connection with our initial public offering, we adopted a policy under which the Audit Committee must pre-approve all audit and permissible non-audit services to be provided by the independent registered public

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accounting firm and independent Singapore auditor. As part of its review, the Audit Committee also considers whether the categories of pre-approved services are consistent with the rules on accountant independence of the SEC and the Public Company Accounting Oversight Board. The Audit Committee pre-approved all services performed since the pre-approval policy was adopted.

Prior to engagement of an independent registered public accounting firm and independent Singapore auditor for the next year’s audit, management will submit an aggregate of services expected to be rendered during that year for each of four categories of services to the Audit Committee for approval.

1. Audit services include audit work performed in the preparation of financial statements, as well as work that generally only an independent registered public accounting firm and independent Singapore auditor can reasonably be expected to provide, including comfort letters, statutory audits, and attest services and consultation regarding financial accounting and/or reporting standards.

2. Audit-related services are for assurance and related services that are traditionally performed by an independent registered public accounting firm and independent Singapore auditor, including due diligence related to mergers and acquisitions, employee benefit plan audits, and special procedures required to meet certain regulatory requirements.

3. Tax services include all services performed by an independent registered public accounting firm’s tax personnel except those services specifically related to the audit of the financial statements, and include fees in the areas of tax compliance, tax planning, and tax advice.

4. Other fees are those associated with services not captured in the other categories. The Company generally does not request such services from our independent registered public accounting firm and independent Singapore auditor.

Prior to engagement, the Audit Committee pre-approves these services by category of service. During the year, circumstances may arise when it may become necessary to engage our independent registered public accounting firm and independent Singapore auditor for additional services not contemplated in the original pre-approval. In those instances, the Audit Committee requires specific pre-approval before engaging our independent registered public accounting firm and independent Singapore auditor. The Audit Committee may delegate pre-approval authority to one or more of its members. The member to whom such authority is delegated must report, for informational purposes only, any pre-approval decisions to the Audit Committee at its next scheduled meeting.

The affirmative vote of a majority of the votes cast by holders of ordinary shares voting in person or by proxy at the 2021 AGM is required to approve the re-appointment of KPMG LLP as our independent registered public accounting firm and our independent Singapore auditor and to authorize the Audit Committee to fix the auditor’s remuneration (meaning the number of shares voted “for” the proposal must exceed the number of shares voted “against” the proposal).

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE APPROVAL OF THE RE-APPOINTMENT OF KPMG LLP AS OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM AND INDEPENDENT SINGAPORE AUDITOR FOR THE YEAR ENDING DECEMBER 31, 2021 AND THE AUTHORIZATION OF THE AUDIT COMMITTEE TO FIX KPMG LLP’S REMUNERATION FOR SUCH SERVICES, AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR OF SUCH APPROVAL AND AUTHORIZATION UNLESS A SHAREHOLDER INDICATES OTHERWISE ON THE PROXY CARD.

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PROPOSAL 3: NON-EMPLOYEE DIRECTORS’ COMPENSATION

Under the laws of Singapore, our shareholders must approve all cash and equity-based compensation paid by us to our directors for services rendered in their capacity as directors. Directors who are employed by us are not eligible to receive compensation from us for services rendered in their capacity as directors.

Part 1: 2021 Non-Employee Director Compensation Policy. At our 2020 Annual General Meeting of Shareholders, our shareholders overwhelmingly approved our 2020 non-employee director compensation policy, under which our directors were compensated for their service as directors, including as members of the various committees of our Board on which they serve, for the Board service period that commenced on the date of our 2020 Annual General Meeting of Shareholders and runs through our 2021 AGM.

We are now asking our shareholders to approve the terms of our 2021 non-employee director compensation policy, which would take effect on the date of shareholder approval of this Proposal 3 and enable us to provide payment of the compensation described under (A) Cash Compensation and (B) Equity Compensation below to our non-employee directors for their service on our Board and its committees for the Board service period commencing on the date of our 2021 AGM and running through the date on which our 2022 Annual General Meeting of Shareholders is held.

(A) Cash Compensation:

(B) Equity Compensation:

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Part 2: Research and Development Committee Compensation in Arrears. Our Research and Development Committee was formed after our 2020 Annual General Meeting of Shareholders, and therefore, shareholder approval for such committee compensation has not been sought previously. We are now seeking shareholder approval for the Research and Development Committee to receive cash compensation in arrears for their service on the Research and Development Committee for the period of January 1, 2021 through the date of 2021 AGM, which shall include cash compensation of $15,000 to the Chairman of the Research and Development Committee and $7,500 to each member of the Research and Development Committee other than the Chairman.

Part 3: Tax Withholding Gross-up. We are also seeking shareholder approval for a one-time, additional amount of $22,125 (which amount includes a tax gross-up) plus any applicable interest related to withholding taxes required to be paid to the U.S. Internal Revenue Service (the “U.S. IRS”) on behalf of one of our ex-U.S. directors (the “Foreign Director”). By way of background, since 2017, we had withheld and remitted 22% of the Foreign Director’s board service compensation to the Inland Revenue Authority of Singapore (“IRAS”) based on advice received from our external tax advisor. In 2020, it was determined that the Foreign Director had a tax obligation in the United States for 30% of the Foreign Director’s board service compensation. We then sought, on behalf of the Foreign Director, and received a refund of the previously remitted amounts from IRAS for the Foreign Director, that we, in turn, remitted to the U.S. IRS on his behalf in partial satisfaction of his U.S. tax obligation. Subject to receipt of shareholder approval, we intend to pay the Foreign Director $22,125 (which amount includes a tax gross up) in satisfaction of the additional tax withholding to the U.S. IRS, plus any applicable interest he may incur for the inadvertent late payment.

*            *             *

We believe the authorizations requested in this Proposal 3 will benefit our shareholders by enabling us to attract and retain qualified individuals to serve as members of our Board and to continue to provide advice to, and independent oversight of, management.

The affirmative vote of a majority of the votes cast by holders of ordinary shares voting in person or by proxy at the 2021 AGM is required to approve the non-employee directors’ compensation (meaning the number of shares voted “for” the proposal must exceed the number of shares voted “against” the proposal).

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE APPROVAL OF THE NON-EMPLOYEE DIRECTORS’ COMPENSATION AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR THEREOF UNLESS A SHAREHOLDER HAS INDICATED OTHERWISE ON THE PROXY CARD.

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PROPOSAL 4: APPROVAL OF THE 2021 EQUITY INCENTIVE PLAN

General

Our Board is requesting that our shareholders approve the adoption of the Wave Life Sciences Ltd. 2021 Equity Incentive Plan (the “2021 Plan”), as recommended by the Compensation Committee and approved by our Board on June 15, 2021, to be effective upon approval by our shareholders at the 2021 AGM. We are submitting the 2021 Plan to our shareholders at this time to replace our 2014 Equity Incentive Plan, as amended (the “2014 Plan”). If the 2021 Plan is not approved by our shareholders, it will not be adopted, and we will continue to operate under the 2014 Plan until the earlier of its expiration or until the issuance of all authorized shares under the 2014 Plan. Subject to receipt of shareholder approval, the 2021 Plan will serve as the successor to the 2014 Plan such that outstanding awards granted under the 2014 Plan will continue to be governed by the terms of the 2014 Plan, but no awards may be made under the 2014 Plan after the effective date of the 2021 Plan.

The purpose of the 2021 Plan is to assist the Company and its subsidiaries in attracting, motivating, retaining and rewarding high-quality executives and other employees, officers, directors, and consultants who provide services to the Company or its subsidiaries, by enabling such persons to acquire or increase a proprietary interest in the Company to align the interests between such persons and the Company’s shareholders, and providing such persons with incentives to expend their maximum efforts in the creation of shareholder value. The aggregate number of ordinary shares authorized for issuance of awards under the 2021 Plan will be 5,450,000 ordinary shares (of which 2,324,228 were available for issuance under the 2014 Plan as of December 31, 2020), plus the number of ordinary shares underlying any awards under the 2014 Plan that are forfeited, canceled or otherwise terminated (other than by exercise or withheld by the Company to satisfy any tax withholding obligation) on or after the date the 2021 Plan is approved by our shareholders; provided that no more than 5,450,000 ordinary shares may be issued upon the exercise of incentive share options. After careful consideration, our Compensation Committee decided not to incorporate an evergreen provision into the 2021 Plan.

As of December 31, 2020, a total of 2,324,228 ordinary shares remained available for issuance under the 2014 Plan and options to purchase 3,873,395 ordinary shares and restricted share units (with both time and performance vesting) for the issuance of 1,180,215 ordinary shares were outstanding. As of December 31, 2020, the Company’s equity overhang, represented by (a) the sum of all outstanding share options and other awards, plus the number of shares available for issuance pursuant to future awards under the 2021 Plan, as a percentage of (b) the sum of (i) the number of ordinary shares outstanding as of December 31, 2020, plus (ii) the number of shares described in clause (a) above, was 13.1%. If the 2021 Plan is approved by our shareholders, the equity overhang would be 19.2%.

As of June 17, 2021, 80% of our outstanding share options were underwater, with such underwater options having a weighted-average exercise price of $18.25 per share, a weighted average term of 7.57 years and individual option exercise prices ranging up to $50.00 per share as compared to the $7.17 per share closing price of our ordinary shares as reported by the Nasdaq Stock Market. As of June 17, 2021, all outstanding share options had a weighted-average exercise price of $15.11 per share and weighted average term of 6.81 years.

Reasons for the 2021 Plan

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The 2021 Plan authorizes the Board or a committee of the Board to grant incentive share options, non-qualified share options, share appreciation rights and restricted share and share unit awards to eligible employees, non-employee directors and consultants of the Company. By its terms, the 2021 Plan may be amended by the Board provided that any amendment that the Board determines requires shareholder approval is subject to receiving such shareholder approval. Approval by our shareholders is required by the listing rules of the Nasdaq Stock Market. In addition, shareholder approval is required in order to ensure favorable federal income tax treatment for grants of incentive share options under Section 422 of the Code.

Promotion of Good Corporate Governance Practices

The 2021 Plan, includes the following provisions:

The following is a brief summary of the 2021 Plan. This summary is qualified in its entirety by reference to the text of the 2021 Plan, a copy of which is attached as Appendix B to this proxy statement.

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Summary of Material Features of our 2021 Plan.

Eligibility. The 2021 Plan allows us, under the direction of our Compensation Committee, to make grants of incentive share options, non-qualified share options, share appreciation rights and restricted share and share unit awards to employees, consultants and directors who, in the opinion of the Compensation Committee, are in a position to make a significant contribution to our long-term success. All employees, directors and consultants of the Company and its affiliates are eligible to participate in the 2021 Plan.

Shares Available for Issuance. The 2021 Plan provides for the issuance of up to 5,450,000 ordinary shares plus the number of ordinary shares underlying any awards under the 2014 Plan that are forfeited, canceled or otherwise terminated (other than by exercise or withheld by the Company to satisfy any tax withholding obligation) on or after the date the 2021 Plan is approved by our shareholders; provided that no more than 5,450,000 ordinary shares may be issued upon the exercise of incentive share options. Generally, ordinary shares that are reserved for awards under the 2021 Plan that lapse or are canceled (other than by exercise) will be added back to the share reserve available for future awards. However, ordinary shares tendered in payment for an award, ordinary shares withheld for taxes, ordinary shares covered by a share-settled share appreciation right or other award that was not issued upon the settlement of the award, and ordinary shares repurchased by the Company on the open market with the proceeds of the exercise price of an option or share appreciation right are not available again for future awards.

Share Options. Share options granted under the 2021 Plan may either be incentive share options, which are intended to satisfy the requirements of Section 422 of the Code, or non-qualified share options, which are not intended to meet those requirements. Incentive share options may be granted to U.S. employees of the Company and its affiliates. Non-qualified share options may be granted to employees, directors and consultants of the Company and its affiliates. The exercise price of a share option may not be less than 100% of the fair market value of our ordinary shares on the date of grant and the term of the option may not be longer than ten years, except for non-qualified share options granted to non-employee directors and consultants which will have a maximum term of five years. If an incentive share option is granted to an individual who owns more than 10% of the combined voting power of all classes of our capital share, the exercise price may not be less than 110% of the fair market value of our ordinary shares on the date of grant and the term of the option may not be longer than five years.

Award agreements for share options include rules for exercise of the share options after termination of service. Share options may not be exercised unless they are vested, and no share option may be exercised after the end of the term set forth in the award agreement. Generally, share options will be exercisable for three months after termination of service for any reason other than death or total and permanent disability, and for 12 months after termination of service on account of death or total and permanent disability but will not be exercisable if the termination of service was due to cause.

Restricted Shares. Restricted shares are ordinary shares that are subject to restrictions, including a prohibition against transfer and a substantial risk of forfeiture, until the end of a “restricted period” during which the recipient must satisfy certain vesting conditions. If the recipient does not satisfy the vesting conditions by the end of the restricted period, the restricted shares are forfeited.

During the restricted period, the holder of restricted shares has the rights and privileges of a regular shareholder, except that the holder of such restricted shares is not entitled to receive dividends during the restricted period and the restrictions set forth in the applicable award agreement apply. For example, the holder of restricted shares may vote and accrue dividends on the restricted shares; but he or she may not sell the shares until the restrictions are lifted and dividends will be forfeited if the restricted shares are forfeited.

Restricted Share Units. A restricted share unit is an award entitling the recipient to receive ordinary shares to be delivered at the time such award vests pursuant to the terms and conditions established in the award

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agreement. The award agreement may provide the recipient with the right to receive dividends or other distributions declared and paid on an equal number of outstanding ordinary shares, which we refer to as dividend equivalents. Dividend equivalents must be subject to the same restrictions on transfer and forfeitability as the restricted share units with respect to which they are paid. A recipient will have no voting rights with respect to any restricted share units unless and until ordinary shares are issued.

Restricted awards may be granted at the sole discretion of the Compensation Committee, with vesting conditions based on the attainment of written performance goals. The Compensation Committee shall determine the performance period and whether, with respect to a performance period, the applicable performance goals have been met.

Share Appreciation Rights. A share appreciation right is an award entitling the recipient, upon exercise, to receive an amount payable in cash or ordinary shares equal to the number of ordinary shares subject to the share appreciation right that is being exercised multiplied by the excess of (a) the fair market value of an ordinary share on the date the award is exercised, over (b) the exercise price. The exercise price may not be less than 100% of the fair market value on the date the share appreciation right is granted and may not be granted with a term in excess of ten years.

Plan Administration. In accordance with the terms of the 2021 Plan, our Board has authorized our Compensation Committee to administer the 2021 Plan. The Compensation Committee may delegate part of its authority and powers under the 2021 Plan to one or more of our directors and/or officers, but only the Compensation Committee can make awards to participants who are subject to the reporting and other requirements of Section 16 of the Exchange Act. In accordance with the provisions of the 2021 Plan, our Compensation Committee determines the terms of awards, including:

In addition, our Compensation Committee may, in its discretion, amend any term or condition of an outstanding award provided (i) such term or condition as amended is permitted by our 2021 Plan, and (ii) any such amendment shall be made only with the consent of the participant to whom such award was made, if the amendment is adverse to the participant; and provided, further, that, without the prior approval of our shareholders, awards will not be repriced, replaced or regranted through cancellation or by lowering the exercise price of a previously granted award.

Share Dividends and Share Splits. If our ordinary shares shall be subdivided or combined into a greater or smaller number of ordinary shares or if we issue any ordinary shares as a share dividend, the number of ordinary shares deliverable upon exercise of an option issued or upon issuance of an award shall be appropriately increased or decreased proportionately, and appropriate adjustments shall be made in the purchase price per share and performance goals applicable to performance awards, if any, to reflect such subdivision, combination or share dividend.

Corporate Transactions. If we are acquired, our Board or Compensation Committee will with respect to share options and share appreciation rights: (i) make appropriate provision for the continuation of the share option or share appreciation right by substituting on an equitable basis for the ordinary shares then subject to such share option or share appreciation right either the consideration payable with respect to the outstanding

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ordinary shares in connection with the corporate transaction or securities of any successor or acquiring entity; (ii) cancel or arrange for the cancellation of the share options or share appreciation rights, to the extent not vested or exercised prior to the effective time of the transaction, in exchange for a payment in cash or ordinary shares as determined by our Board, in an amount equal to the amount by which the then fair market value of the ordinary shares subject to such vested share option or share appreciation right exceeds the exercise price; or (iii) after giving holders an opportunity to exercise to the extent vested their outstanding share options or share appreciation rights, terminate any or all unexercised share options and share appreciation rights at such time as the Board deems appropriate. With respect to outstanding restricted awards, our Board or Compensation Committee shall make appropriate provision for the continuation of such restricted awards on the same terms and conditions by substituting on an equitable basis for the ordinary shares then subject to such restricted awards either the consideration payable with respect to the outstanding ordinary shares in connection with the transaction or securities of any successor or acquiring entity. In lieu of the foregoing, if we are acquired, our Board may provide that, upon consummation of the acquisition, each outstanding restricted award shall be terminated in exchange for payment of an amount equal to the consideration payable upon consummation of such transaction to a holder of the number of ordinary shares comprising such restricted award to the extent then vested.

Amendment and Termination. The 2021 Plan may be amended by our shareholders. It may also be amended by our Board, provided that any amendment approved by our Board which is of a scope that requires shareholder approval as required by (i) the rules of the Nasdaq Stock Market, (ii) in order to ensure favorable federal income tax treatment for any incentive share options under Code Section 422, or (iii) for any other reason, is subject to obtaining such shareholder approval. In addition, other than in connection with share dividends, share splits, recapitalizations or reorganizations, the Compensation Committee may not without shareholder approval reduce the exercise price or cancel any outstanding option in exchange for a replacement option having a lower exercise price. In addition, we may not take any other action that is considered a direct or indirect “repricing” for purposes of the shareholder approval rules of the applicable securities exchange or inter-dealer quotation system on which the ordinary shares are listed, including any other action that is treated as a repricing under generally accepted accounting principles. However, no such action may adversely affect any rights under any outstanding award without the holder’s consent.

Duration of 2021 Plan. The 2021 Plan will expire by its terms on August 10, 2031.

Federal Income Tax Considerations

The material federal income tax consequences of the issuance and exercise of share options and other awards under the 2021 Plan, based on the current provisions of the Code and regulations, are as follows. Changes to these laws could alter the tax consequences described below. This summary assumes that all awards granted under the 2021 Plan are exempt from or comply with, the rules under Section 409A of the Code related to nonqualified deferred compensation. This summary is not intended to be exhaustive and does not discuss the income tax laws of any local, state or foreign jurisdiction in which a participant may reside. The information is based upon current federal income tax rules and therefore is subject to change when those rules change. Because the tax consequences to any participant may depend on his or her particular situation, each participant should consult the participant’s tax adviser regarding the federal, state, local and other tax consequences of the grant or exercise of an award or the disposition of ordinary shares acquired under the 2021 Plan.

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Limitation on Our Deductions As a general rule, the Company will be entitled to a deduction in the same amount and at the same time as the compensation income is received by a participant, except to the extent the deduction limits of Section 162(m) of the Code apply. Section 162(m) of the Code denies a deduction to any publicly held corporation for compensation paid to any “covered employee” in a taxable year to the extent that compensation to such covered employee exceeds $1,000,000. It is possible that compensation attributable to awards under the 2021 Plan may cause this limitation to be exceeded in any particular year.

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New Plan Benefits

Other than as discussed above in our director compensation policy in the section entitled “Executive Officer and Director Compensation,” the amounts of future grants under the 2021 Plan are not determinable as awards under the 2021 Plan and will be granted at the sole discretion of the Compensation Committee, or other delegated persons and we cannot determine at this time either the persons who will receive awards under the 2021 Plan or the amount or types of any such awards.

On June 17, 2021, the closing market price per share of our ordinary shares was $7.17, as reported by the Nasdaq Stock Market.

Accordingly, our Board seeks shareholder approval of Ordinary Resolution 4 as set out in the Notice.

The affirmative vote of a majority of the votes cast by holders of ordinary shares voting in person or by proxy at the 2021 AGM is required to approve the 2021 Equity Incentive Plan (meaning the number of shares voted “for” the proposal must exceed the number of shares voted “against” the proposal).

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE 2021 EQUITY INCENTIVE PLAN AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR THEREOF UNLESS A SHAREHOLDER HAS INDICATED OTHERWISE ON THE PROXY CARD.

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PROPOSAL 5: ORDINARY SHARE ALLOTMENTS AND ISSUANCES

We are incorporated in the Republic of Singapore. Under the laws of Singapore, our directors may issue ordinary shares and make offers or agreements or grant options that might or would require the issuance of ordinary shares only with the prior approval of our shareholders. We are submitting this proposal to authorize our Board (or a committee thereof) to allot and issue our ordinary shares from time to time, as set forth below, because we are required to do so under the laws of Singapore before we can issue any ordinary shares in connection with our equity compensation plans, possible future strategic transactions, or public and private equity offerings.

If this proposal is approved, the authorization would be effective from the date of the 2021 AGM and continue until the earlier of (i) the conclusion of our 2022 Annual General Meeting of Shareholders; or (ii) the expiration of the period within which our 2022 Annual General Meeting of Shareholders is required by the laws of Singapore to be held. Our 2022 Annual General Meeting of Shareholders is required to be held no later than 15 months after the date of the 2021 AGM or within six months after the 2021 financial year end, whichever is earlier. The laws of Singapore allow for an application to be made to the Singapore Accounting and Corporate Regulatory Authority to extend the deadline for holding an annual general meeting for an additional sixty days, which may be granted in the discretion of that authority.

Our Board believes that it is advisable and in the best interests of our shareholders for our shareholders to authorize the directors to issue ordinary shares and to make, enter into or grant offers, agreements or options that might or would require the issuance of ordinary shares. In the future, the directors may need to issue ordinary shares or make agreements that would require the allotment and issuance of new ordinary shares. For example, we may issue ordinary shares:

Notwithstanding this general authorization to allot and issue our ordinary shares, we will be required to seek shareholder approval with respect to future issuances of ordinary shares, where required under the Nasdaq Stock Market rules, such as if we were to propose an issuance of ordinary shares that would result in a change in control of the Company or in connection with certain transactions involving the issuance of ordinary shares representing 20% or more of our outstanding ordinary shares.

We expect that we will continue to issue ordinary shares and grant share options and other equity-based awards in the future under circumstances similar to those in the past. As of the date of this proxy statement, other than issuances of ordinary shares or agreements that would require the issuance of new ordinary shares in connection with our equity compensation plans and arrangements (such as the 2021 Plan, if approved), including any equity compensation plans and awards we have assumed or may assume as a result of any acquisitions we may make, we have no specific plans, agreements or commitments to issue any ordinary shares for which approval of this proposal is required. Nevertheless, our Board believes that it is advisable and in the best interests of our shareholders for our shareholders to provide this general authorization in order to avoid the delay and expense of obtaining shareholder approval at a later date, and to provide us with greater flexibility to pursue strategic transactions and acquisitions and raise additional capital through public and private offerings of our ordinary shares, as well as instruments convertible into our ordinary shares.

If this proposal is approved, our directors would be authorized to allot and issue ordinary shares, during the period described above, subject to our Constitution, applicable Singapore laws and the Nasdaq Stock Market rules. The issuance of a large number of ordinary shares (or instruments convertible into ordinary shares) could

51

be dilutive to existing shareholders or reduce the trading price of our ordinary shares on the Nasdaq Global Market. If this proposal is not approved, we would not be permitted to issue ordinary shares (other than shares issuable on exercise or settlement of outstanding options and other instruments convertible into or exercisable for ordinary shares or the like, which were previously granted). If we are unable to rely upon equity as a component of compensation, we would have to review our compensation practices, and would likely have to substantially increase cash compensation to retain key personnel.

Accordingly, our Board seeks shareholder approval of Ordinary Resolution 5 as set out in the Notice. The affirmative vote of a majority of the votes cast by holders of ordinary shares voting in person or by proxy at the 2021 AGM is required to authorize the Board to allot and issue ordinary shares of the Company (meaning the number of shares voted “for” the proposal must exceed the number of shares voted “against” the proposal).

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE AUTHORIZATION OF ORDINARY SHARE ALLOTMENTS AND ISSUANCES AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR THEREOF UNLESS A SHAREHOLDER HAS INDICATED OTHERWISE ON THE PROXY CARD.

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PROPOSAL 6: NON-BINDING ADVISORY RESOLUTION ON APPROVAL OF EXECUTIVE COMPENSATION AS DISCLOSED IN THIS PROXY STATEMENT

We are seeking your advisory vote (on a non-binding, advisory basis only) as required by Section 14A of the Exchange Act on the approval of the compensation of our named executive officers as described in the compensation tables and related material contained in this proxy statement. Because your vote is advisory, it will not be binding on our Compensation Committee or our Board. However, our Compensation Committee and our Board will review the voting results and take them into consideration when making future decisions regarding executive compensation. We have determined to hold an advisory vote to approve the compensation of our named executive officers annually, and the next such advisory vote will occur at our 2022 Annual General Meeting of Shareholders.

Our compensation philosophy is designed to align each executive’s compensation with our short-term and long-term performance and to provide the compensation and incentives needed to attract, motivate and retain key executives who are crucial to our long-term success. Our Compensation Committee and our Board believe that our compensation policies and procedures are effective in implementing our compensation philosophy and in achieving its goals. Therefore, we are asking our shareholders to indicate their support for our named executive officer compensation as described in this proxy statement. This proposal, commonly known as a “say on pay” proposal, gives our shareholders the opportunity to express their views on our named executive officers’ compensation. This vote is not intended to address any specific item of compensation, but rather the overall compensation of our named executive officers and the compensation philosophy, policies and practices described in this proxy statement.

In accordance with the rules of the SEC, the following proposal is being submitted for a non-binding, advisory shareholder vote at the 2021 AGM:

“RESOLVED, on a non-binding, advisory basis only, that the compensation paid to the named executive officers of the Company, as disclosed pursuant to the compensation disclosure rules of the Securities and Exchange Commission, including the compensation tables and the related material disclosed in this proxy statement, is hereby APPROVED.”

This non-binding advisory resolution is being proposed to shareholders as required pursuant to the requirements of Section 14A of the Exchange Act. The shareholders’ vote on this proposal is solely advisory and non-binding in nature, will have no legal effect for purposes of Singapore law, and will not be enforceable against our Company or our Board. For the avoidance of doubt, this is not an Ordinary Resolution.

The affirmative vote of a majority of the votes cast by holders of ordinary shares voting in person or by proxy at the 2021 AGM is required to approve, on a non-binding, advisory basis only, the compensation of our named executive officers, as described in this proxy statement (meaning the number of shares voted “for” the proposal must exceed the number of shares voted “against” the proposal). Although the advisory resolution is non-binding, our Compensation Committee and our Board will review the voting results and take them into consideration when making future decisions regarding executive compensation.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE APPROVAL (ON A NON-BINDING, ADVISORY BASIS ONLY) OF THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS AND PROXIES SOLICITED BY THE BOARD WILL BE VOTED IN FAVOR THEREOF UNLESS A SHAREHOLDER HAS INDICATED OTHERWISE ON THE PROXY CARD.

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DELINQUENT SECTION 16(A) REPORTS

With the exception of a Form 4 to report two transactions: (i) the receipt of an option to purchase our ordinary shares granted on February 1, 2021; and (ii) the receipt of restricted share units granted on February 1, 2021; that were required to be filed on February 3, 2021 for each of our executive officers: Drs. Bolno, Francis, Panzara and Vargeese, and Mr. Moran, but were actually filed on February 18, 2021, our records reflect that all reports that were required to be filed pursuant to Section 16(a) of the Exchange Act were filed on a timely basis during the fiscal year ended December 31, 2020.

CODE OF BUSINESS CONDUCT AND ETHICS

We have adopted a code of business conduct and ethics that applies to all of our employees, including our principal executive officer and principal financial and accounting officer. The text of the code of conduct and ethics is posted on our website at www.wavelifesciences.com. Disclosure regarding any amendments to, or waivers from, provisions of the code of conduct and ethics that apply to our directors, principal executive officer or principal financial officer will be included in a Current Report on Form 8-K filed with the SEC within four business days following the date of the amendment or waiver, unless website posting or the issuance of a press release of such amendments or waivers is then permitted by the rules of the Nasdaq Stock Market.

OTHER MATTERS

The Board of Directors knows of no other business which will be presented at the 2021 AGM. If any other business is properly brought before the 2021 AGM, proxies will be voted in accordance with the judgment of the persons named therein.

SHAREHOLDER PROPOSALS AND NOMINATIONS FOR DIRECTOR

To be considered for inclusion in the proxy statement relating to our 2022 Annual General Meeting of Shareholders, we must receive shareholder proposals (other than for director nominations) no later than March 2, 2022. To be considered for presentation at our 2022 Annual General Meeting of Shareholders, although not included in the proxy statement, proposals (including director nominations that are not requested to be included in our proxy statement) must be received no later than May 16, 2022. Shareholder proposals are also subject to the requirements of the Singapore Companies Act as described in the paragraph below. Proposals that are not received in a timely manner will not be voted on at our 2022 Annual General Meeting of Shareholders. If a proposal is received on time, the proxies that management solicits for the meeting may still exercise discretionary voting authority on the proposal under circumstances consistent with the proxy rules of the SEC. All shareholder proposals should be marked for the attention of General Counsel, Wave Life Sciences Ltd., 733 Concord Avenue, Cambridge, MA 02138.

In addition, under Section 183 of the Singapore Companies Act, only registered shareholders representing not less than 5% of the total voting rights or registered shareholders representing not fewer than 100 registered shareholders having an average paid up sum of at least S$500 (Singapore dollars) each may, at their expense, request that we include and give notice of their proposal for our 2021 Annual General Meeting of Shareholders. Subject to satisfaction of the requirements of Section 183 of the Singapore Companies Act, any such requisition must be signed by all the shareholders making the request and be deposited at our registered office in Singapore, 7 Straits View #12-00, Marina One East Tower, Singapore 018936, at least six weeks prior to the date of our 2022 Annual General Meeting of Shareholders in the case of a request requiring notice of a resolution, or at least one week prior to the date of our 2021 Annual General Meeting of Shareholders in the case of any other request.

Cambridge, Massachusetts

June 28, 2021

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Appendix A

Wave Life Sciences Ltd. and its Subsidiaries

Registration Number: 201218209G

Singapore Statutory Financial Statements

Year ended December 31, 2020

Wave Life Sciences Ltd. and its Subsidiaries

Singapore Statutory Financial Statements

Year ended December 31, 2020

Index

2

Wave Life Sciences Ltd. and its Subsidiaries

Directors’ Statements

Year ended December 31, 2020

Directors’ Statements

The directors are pleased to submit this annual report to the members of Wave Life Sciences Ltd. (“the Parent”), together with these directors’ statements, the audited financial statements for the financial year ended December 31, 2020 and the auditors’ report thereon.

In our opinion:

The board of directors has, on the date of this statement, authorized these financial statements for issue.

Directors

The directors in office at the date of this statement are as follows:

3

Wave Life Sciences Ltd. and its Subsidiaries

Directors’ Statements

Year ended December 31, 2020

Directors’ Interests

According to the register kept by Wave Life Sciences Ltd. for the purposes of Section 164 of the Companies Act, Chapter 50 (“the Act”) and the Wave Life Sciences Ltd. option ledger, particulars of interests of directors who held office at the end of the financial year (including those held by their spouses and infant children) in shares, debentures, warrants and share options of Wave Life Sciences Ltd. or in related corporations (other than wholly-owned subsidiaries) are as follows:

4

Wave Life Sciences Ltd. and its Subsidiaries

Directors’ Statements

Year ended December 31, 2020

Except as disclosed in this statement, no director who held office at the end of the financial year had interests in shares, debentures, warrants or share options of Wave Life Sciences Ltd., or of its related corporations, either at the beginning of the financial year, or date of his/her appointment to this board of directors, if later.

Except as disclosed in Note 7 to the consolidated financial statements, there were no unissued shares of Wave Life Sciences Ltd. or its subsidiaries under options granted by Wave Life Sciences Ltd. or its subsidiaries as of the end of the financial year.

5

Wave Life Sciences Ltd. and its Subsidiaries

Directors’ Statements

Year ended December 31, 2020

Auditors

KPMG LLP were re-appointed as auditors of Wave Life Sciences Ltd. on August 12, 2020. The auditors, KPMG LLP, have indicated their willingness to accept re-appointment.

On behalf of the board of directors,

6

Independent auditors’ report

Members of the Company

Wave Life Sciences Ltd. and its subsidiaries

Report on the audit of the financial statements

Qualified opinion

We have audited the accompanying consolidated financial statements of Wave Life Sciences Ltd. and its subsidiaries (the “Company”) and the supplementary financial information of Wave Life Sciences Ltd. (the “Parent”), which comprise the balance sheets of the Company and Parent as at December 31, 2020, consolidated statements of operations and comprehensive loss, consolidated statements of series A preferred shares and shareholders’ equity, and consolidated statements of cash flows of the Company for the year then ended, and notes to the financial statements, including a summary of significant accounting policies, as set out on pages F-1 to F-47 (collectively, the “financial statements”).

In our opinion, except for the effects of the matter described in the “Basis for qualified opinion” section of our report, the consolidated financial statements of the Company and the balance sheet of the Parent are properly drawn up in accordance with the provisions of the Companies Act, Chapter 50 (the “Act”) and accounting principles generally accepted in the United States of America (“U.S. GAAP”) (the use of which is approved by the Accounting and Corporate Regulatory Authority of Singapore) so as to give a true and fair view of the financial position of the Company and of the Parent as at December 31, 2020 and of the financial performance, changes in equity and cash flows of the Company for the year ended on that date.

Basis for qualified opinion

U.S. GAAP requires that the Parent prepare consolidated financial statements. The Act requires that supplementary financial information is provided as a part of the Singapore Statutory Financial Statements. In order to comply with the Act’s requirement to present a separate standalone balance sheet of the Parent, the Parent did not consolidate the investments in subsidiaries and instead reported these investments and the balances with subsidiaries as separate lines on the Parent’s standalone balance sheet. Our audit opinion on the financial statements for the year ended December 31, 2019 dated April 28, 2020 also included a modification on the same matter.

We conducted our audit in accordance with Singapore Standards on Auditing (“SSAs”). Our responsibilities under those standards are further described in the “Auditors’ responsibilities for the audit of the financial statements” section of our report. We are independent of the Company in accordance with the Accounting and Corporate Regulatory Authority Code of Professional Conduct and Ethics for Public Accountants and Accounting Entities (“ACRA Code”) together with the ethical requirements that are relevant to our audit of the financial statements in Singapore, and we have fulfilled our other ethical responsibilities in accordance with these requirements and the ACRA Code. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our qualified opinion.

7

		Wave Life Sciences Ltd. and its Subsidiaries Independent Auditors’ Report Year ended December 31, 2020

Key audit matters

Key audit matters are those matters that, in our professional judgement, were of most significance in our audit of the financial statements of the current period. These matters were addressed in the context of our audit of the financial statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters. In addition to the matter described in the “Basis for qualified opinion” section, we have determined the matter described below to be the key audit matter to be communicated in our report.

The above key audit matter applies to both the consolidated financial statements and the supplementary balance sheet.

Other information

Management is responsible for the other information contained in the Singapore Statutory Financial Statements. Other information is defined as all information in the Singapore Statutory Financial Statements other than the

8

		Wave Life Sciences Ltd. and its Subsidiaries Independent Auditors’ Report Year ended December 31, 2020

financial statements and our auditors’ report thereon. We have obtained all other information prior to the date of this auditors’ report.

Our opinion on the financial statements does not cover the other information and we do not express any form of assurance conclusion thereon.

In connection with our audit of the financial statements, our responsibility is to read the other information and, in doing so, consider whether the other information is materially inconsistent with the financial statements or our knowledge obtained in the audit or otherwise appears to be materially misstated. If, based on the work we have performed, we conclude that there is a material misstatement of this other information, we are required to report that fact. We have nothing to report in this regard.

Responsibilities of management and directors for the financial statements

Management is responsible for the preparation of financial statements that give a true and fair view in accordance with the provisions of the Act and accounting principles generally accepted in the United States of America, and for devising and maintaining a system of internal accounting controls sufficient to provide a reasonable assurance that assets are safeguarded against loss from unauthorised use or disposition; and transactions are properly authorised and that they are recorded as necessary to permit the preparation of true and fair financial statements and to maintain accountability of assets.

In preparing the financial statements, management is responsible for evaluating whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date the financial statements are issued.

The directors’ responsibilities include overseeing the Company’s financial reporting process.

Auditors’ responsibilities for the audit of the financial statements

Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditors’ report that includes our opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that an audit conducted in accordance with SSAs will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these financial statements.

As part of an audit in accordance with SSAs, we exercise professional judgement and maintain professional skepticism throughout the audit. We also:

9

		Wave Life Sciences Ltd. and its Subsidiaries Independent Auditors’ Report Year ended December 31, 2020

We communicate with the directors regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal controls that we identify during our audit.

We also provide the directors with a statement that we have complied with relevant ethical requirements regarding independence, and communicate with them all relationships and other matters that may reasonably be thought to bear on our independence, and where applicable, related safeguards.

From the matters communicated with the directors, we determine those matters that were of most significance in the audit of the financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditors’ report unless the law or regulations preclude public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.

Report on other legal and regulatory requirements

In our opinion, the accounting and other records required by the Act to be kept by the Parent have been properly kept in accordance with the provisions of the Act.

The engagement partner on the audit resulting in this independent auditors’ report is Malcolm Ramsay.

/s/ KPMG LLP

KPMG LLP

Public Accountants and

Chartered Accountants

Singapore

June 25, 2021

10

Wave Life Sciences Ltd. and its Subsidiaries

Consolidated Financial Statements

Year ended December 31, 2020

WAVE LIFE SCIENCES LTD.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)

The accompanying notes are an integral part of the consolidated financial statements.

F-1

Wave Life Sciences Ltd. and its Subsidiaries

Consolidated Financial Statements

Year ended December 31, 2020

WAVE LIFE SCIENCES LTD.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(In thousands, except share and per share amounts)