SEC Form DEF 14A filed by Aligos Therapeutics Inc.

ALIGOS THERAPEUTICS, INC.

Dear Stockholder:

I am pleased to invite you to attend the 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of Aligos Therapeutics, Inc., which will be held online at www.proxydocs.com/ALGS, on June 25, 2025 at 8:00 a.m. Pacific Time. You must register to attend the meeting online at www.proxydocs.com/ALGS no later than June 24, 2025 at 5:00 p.m. Eastern Time.

The attached Notice of Annual Meeting of Stockholders and Proxy Statement contain details of the business to be conducted at the Annual Meeting.

Whether or not you attend the Annual Meeting online, it is important that your shares be represented and voted at the meeting. Therefore, I urge you to promptly vote and submit your proxy via the Internet, by phone or by mail. If you decide to attend the Annual Meeting online, you will be able to vote electronically or via phone using the control number on your proxy card, even if you have previously submitted your proxy.

On behalf of the Board of Directors, I would like to express our appreciation for your interest in Aligos Therapeutics.

ALIGOS THERAPEUTICS, INC.

One Corporate Drive, 2nd Floor

South San Francisco, California 94080

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON JUNE 25, 2025

To the Stockholders of Aligos Therapeutics, Inc.:

NOTICE IS HEREBY GIVEN that the Annual Meeting of Stockholders (the “Annual Meeting”) of Aligos Therapeutics, Inc., a Delaware corporation (the “Company”), will be held on Wednesday, June 25, 2025, at 8:00 a.m. Pacific Time. You will be able to attend and participate in the Annual Meeting online by registering at www.proxydocs.com/ALGS no later than June 24, 2025 at 5:00 p.m. Eastern Time. Once registered you will receive further instructions via email on how to listen to the meeting live, submit questions, and vote. The Annual Meeting will be held for the following purposes:

The foregoing items of business are more fully described in the Proxy Statement accompanying this Notice of Annual Meeting of Stockholders. Only stockholders who owned common stock of the Company at the close of business on April 28, 2025 (the “Record Date”) can vote at this meeting or any adjournments that take place.

The Board of Directors recommends that you vote FOR the election of the director nominees named in Proposal No. 1 of the Proxy Statement, FOR the ratification of the appointment of Ernst & Young LLP, as the independent registered public accounting firm, as described in Proposal No. 2, FOR the Plan Amendment Proposal as described in Proposal No. 3, FOR the Voting Common Stock Authorized Shares Amendment as described in Proposal No. 4, and FOR the Non-Voting Common Stock Authorized Shares Amendment as described in Proposal No. 5.

YOUR VOTE IS IMPORTANT. WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING ONLINE, WE ENCOURAGE YOU TO READ THE ACCOMPANYING PROXY STATEMENT AND OUR ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2024, AND SUBMIT YOUR PROXY AS SOON AS POSSIBLE USING ONE OF THE THREE CONVENIENT VOTING METHODS DESCRIBED IN THE “INFORMATION ABOUT THE PROXY PROCESS AND VOTING”

SECTION IN THE PROXY STATEMENT. IF YOU RECEIVE MORE THAN ONE SET OF PROXY MATERIALS OR NOTICE OF INTERNET AVAILABILITY BECAUSE YOUR SHARES ARE REGISTERED IN DIFFERENT NAMES OR ADDRESSES, EACH PROXY SHOULD BE SIGNED AND SUBMITTED TO ENSURE THAT ALL OF YOUR SHARES WILL BE VOTED.

South San Francisco, California

April 28, 2025

TABLE OF CONTENTS

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ALIGOS THERAPEUTICS, INC.

One Corporate Drive, 2^nd Floor

South San Francisco, California 94080

PROXY STATEMENT

FOR THE 2025 ANNUAL MEETING OF STOCKHOLDERS

JUNE 25, 2025

We have sent you this Proxy Statement and the enclosed Proxy Card because the Board of Directors (the “Board”) of Aligos Therapeutics, Inc. (referred to herein as the “Company”, “Aligos Therapeutics”, “we”, “us” or “our”) is soliciting your proxy to vote at our 2025 Annual Meeting of Stockholders (the “Annual Meeting”) to be held on Wednesday, June 25, 2025, at 8:00 a.m. Pacific Time. The Annual Meeting will be held entirely online. You will be able to attend and participate in the Annual Meeting online by registering at www.proxydocs.com/ALGS no later than June 24, 2025 at 5:00 p.m. Eastern Time. Once registered you will receive further instructions via email on how to listen to the meeting live, submit questions, and vote.

In addition to solicitations by mail, our directors, officers and regular employees, without additional compensation, may solicit proxies by telephone, e-mail and personal interviews. We may retain outside consultants to solicit proxies on our behalf as well. All costs of solicitation of proxies will be borne by us. Brokers, custodians and fiduciaries will be requested to forward proxy soliciting material to the owners of stock held in their names, and we will reimburse them for their reasonable out-of-pocket expenses incurred in connection with the distribution of proxy materials.

Pursuant to the rules adopted by the Securities and Exchange Commission (the “SEC”), we have elected to provide access to our Annual Meeting materials, which include this Proxy Statement and our Annual Report on Form 10-K for the year ended December 31, 2024 (the “Form 10-K”), over the internet in lieu of mailing printed copies. We will begin mailing the Notice of Internet Availability to our stockholders of record as of April 28, 2025 (the “Record Date”) for the first time on or about May 6, 2025. The Notice of Internet Availability will contain instructions on how to access and review the Annual Meeting materials, and will also contain instructions on how to request a printed copy of the Annual Meeting materials. In addition, we have provided brokers, dealers, banks, voting trustees and their nominees, at our expense, with additional copies of our proxy materials and the Form 10-K so that our record holders can supply these materials to the beneficial owners of shares of our common stock as of the Record Date. The Form 10-K is also available in the “Investor Relations – SEC Filings” section of our website at https://investor.aligos.com/.

The only outstanding voting securities of Aligos Therapeutics are shares of common stock, $0.0001 par value per share (the “common stock”), of which there were 5,314,801 shares outstanding as of the Record Date (excluding any treasury shares). This number does not include 4,217,432 shares of common stock issuable upon the exercise of pre-funded warrants outstanding as of the Record Date (which are immediately exercisable at an exercise price of $0.0025 and $0.0001 per share of common stock, subject to beneficial ownership limitations) or 4,213,767 shares of common stock issuable upon the exercise of common warrants outstanding as of the Record Date (which are immediately exercisable at an exercise price of $18.92 and $26.02 per share of common stock, subject to beneficial ownership limitations). The holders of a majority in voting power of the shares of common stock issued and outstanding and entitled to vote, present in person or represented by proxy, are required to hold the Annual Meeting. We have two classes of common stock: voting common stock and non-voting common stock. Unless otherwise noted, all references in this Proxy Statement to our “common stock,” or “shares” refers to our voting common stock.

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INFORMATION ABOUT THE PROXY PROCESS AND VOTING

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS

FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON JUNE 25, 2025

This proxy statement and our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 are available on our website at www.aligos.com and at www.proxydocs.com/ALGS.

Unless the context requires otherwise, in this Proxy Statement the terms “Aligos,” “we,” “us,” “our” and “the Company” refer to Aligos Therapeutics, Inc.

QUESTIONS AND ANSWERS REGARDING THE PROXY MATERIALS AND THE VOTING PROCESS

Why am I receiving these materials?

We have made this Proxy Statement and Proxy Card available to you on the internet or, upon your request, have delivered printed proxy materials to you, because the Board is soliciting your proxy to vote at the Annual Meeting, including at any adjournments or postponements of the Annual Meeting. You are invited to attend the Annual Meeting online to vote on the proposals described in this Proxy Statement. However, you do not need to attend the Annual Meeting to vote your shares. Instead, you may simply complete, sign and return the Proxy Card, or follow the instructions below to submit your proxy over the telephone or on the internet.

This Proxy Statement, the Notice of Internet Availability, the Notice of Annual Meeting and accompanying Proxy Card will be first made available for access on or about May 6, 2025 to all stockholders of record entitled to vote at the Annual Meeting.

Who can vote at the Annual Meeting?

Only stockholders of record at the close of business on the Record Date will be entitled to vote at the Annual Meeting. At the close of business on the Record Date, there were 5,314,801 shares of common stock issued and outstanding and entitled to vote. This number does not include 4,217,432 shares of common stock issuable upon the exercise of pre-funded warrants outstanding as of the Record Date (which are immediately exercisable at an exercise price of $0.0025 and $0.0001 per share of common stock, subject to beneficial ownership limitations) or 4,213,767 shares of common stock issuable upon the exercise of common warrants outstanding as of the Record Date (which are immediately exercisable at an exercise price of $18.92 and $26.02 per share of common stock, subject to beneficial ownership limitations).

Stockholder of Record: Shares Registered in Your Name

If, on the Record Date, your shares were registered directly in your name with the transfer agent for our common stock, Continental Stock Transfer & Trust Co., then you are a stockholder of record. As a stockholder of record, you may vote at the Annual Meeting by attending the Annual Meeting online and following the instructions posted at www.proxydocs.com/ALGS or you may vote by proxy. Whether or not you plan to attend the Annual Meeting online, we encourage you to fill out and return the Proxy Card or vote by proxy over the telephone or on the internet as instructed below to ensure your vote is counted.

Beneficial Owner: Shares Registered in the Name of a Broker, Bank or Other Agent

If, on the Record Date, your shares were held in an account at a brokerage firm, bank, dealer, custodian or other similar organization acting as nominee (each, a “Broker”), then you are the beneficial owner of shares held in “street name” and these proxy materials are being forwarded to you by that organization. The organization holding your account is considered the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct your broker or other agent on how to vote the shares in your

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account. You are also invited to register to attend the Annual Meeting online at www.proxydocs.com/ALGS. You must register online no later than June 24, 2025 at 5:00 p.m. Eastern Time. However, since you are not the stockholder of record, you may not vote your shares at the Annual Meeting by attending the Annual Meeting online unless you request and obtain a valid Proxy Card from your broker or other agent.

What am I being asked to vote on?

You are being asked to vote on five proposals:

In addition, you are entitled to vote on any other matters that are properly brought before the Annual Meeting.

How do I vote?

Please note that by casting your vote by proxy you are authorizing the individuals listed on the Proxy Card to vote your shares in accordance with your instructions and in their discretion with respect to any other matter that properly comes before the Annual Meeting or any adjournments or postponements thereof.

The procedures for voting are as follows:

Stockholder of Record: Shares Registered in Your Name

If you are a stockholder of record, you may vote at the Annual Meeting online. Alternatively, you may vote by proxy by using the accompanying Proxy Card, over the internet or by telephone. Whether or not you plan to attend the Annual Meeting online, we encourage you to vote by proxy to ensure your vote is counted. Even if you have submitted a proxy before the Annual Meeting, you may still attend the Annual Meeting online and vote online. In such case, your previously submitted proxy will be disregarded.

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Beneficial Owner: Shares Registered in the Name of Broker

If you are a beneficial owner of shares registered in the name of your Broker you should have received a voting instruction card and voting instructions with these proxy materials from that organization rather than from us. Simply complete and mail the voting instruction card to ensure that your vote is counted. To vote at the Annual Meeting online, you must obtain a valid proxy from your Broker. Follow the instructions from your broker, bank or other agent included with these proxy materials, or contact your Broker to request a proxy form.

Who counts the votes?

Mediant has been engaged as our independent agent to tabulate stockholder votes, or Inspector of Election. If you are a stockholder of record, your executed Proxy Card is returned directly to Mediant for tabulation. As noted above, if you hold your shares through a Broker, your Broker returns one Proxy Card to Mediant on behalf of all its clients.

How are votes counted?

Votes will be counted by the Inspector of Election appointed for the Annual Meeting, who will separately count “For” votes for all proposals, and, with respect to Proposal 2, Proposal 3, Proposal 4, and Proposal 5, “Against” votes, abstentions and broker non-votes. In addition, with respect to Proposal 1, the election of directors, the Inspector of Election will count the number of “Withheld” votes and broker non-votes received. If your shares are held by your Broker as your nominee (that is, in “street name”), you will need to obtain a proxy form from the institution that holds your shares and follow the instructions included on that form regarding how to instruct your Broker to vote your shares. If you do not give instructions to your Broker, your Broker can vote your shares with respect to “routine” items, but not with respect to “non-routine” items. See below for more information regarding: “What are “broker non-votes”?” and “Which ballot measures are considered “routine” or “non-routine”?”.

What are “broker non-votes”?

Broker non-votes occur when a beneficial owner of shares held in “street name” does not give instructions to the Broker of the shares as to how to vote on matters deemed “non-routine.” Generally, if shares are held in street name, the beneficial owner of the shares is entitled to give voting instructions to the Broker holding the shares. If the beneficial owner does not provide voting instructions, the Broker can still vote the shares with respect to matters that are considered to be “routine,” but not with respect to “non-routine” matters. In the event that a Broker or other record holder of common stock indicates on a proxy that it does not have discretionary authority to vote certain shares on a particular proposal, then those shares will be treated as broker non-votes with respect to that proposal. Accordingly, if you own shares through a nominee, such as a Broker, please be sure to instruct your nominee how to vote to ensure that your vote is counted on each of the proposals.

Which ballot measures are considered “routine” or “non-routine?”

The ratification of the appointment of Ernst & Young LLP, as our independent registered public accounting firm for the year ending December 31, 2025 (Proposal 2), the amendment of our Amended and Restated

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Certificate of Incorporation to increase the number of authorized shares of voting common stock from 20,000,000 to 100,000,000 (Proposal 4), and the amendment of our Amended and Restated Certificate of Incorporation to increase the number of authorized shares of non-voting common stock from 800,000 to 15,800,000 (Proposal 5) are considered routine under applicable rules. A Broker may generally vote on routine matters, and therefore no broker non-votes are expected to exist in connection with Proposal 2, Proposal 4 or Proposal 5. The election of directors (Proposal 1) and the amendment of our 2020 Plan to increase the number of shares reserved and scheduled to be reserved under the 2020 Plan by 1,000,000 shares (Proposal 3) are considered non-routine under applicable rules. A Broker cannot vote without instructions on non-routine matters, and therefore there may be broker non-votes on Proposal 1 or Proposal 3.

How many votes are needed to approve the proposal?

With respect to Proposal 1, the election of directors, the nominees receiving the highest number of “For” votes will be elected.

With respect to Proposal 2, the ratification of the appointment of Ernst & Young LLP, as our independent registered public accounting firm for the fiscal year ending December 31, 2025, the affirmative vote of the majority of votes cast affirmatively or negatively (excluding abstentions) is required for approval. This is a routine proposal so we do not expect any broker non-votes.

With respect to Proposal 3, the amendment of our 2020 Plan to increase the number of shares reserved and scheduled to be reserved under the 2020 Plan by 1,000,000 shares, the affirmative vote of the majority of votes cast affirmatively or negatively (excluding abstentions) is required for approval. Broker non-votes will have no effect on the result of this vote.

With respect to Proposal 4, the amendment of our Amended and Restated Certificate of Incorporation to increase the number of authorized shares of voting common stock from 20,000,000 to 100,000,000, the affirmative vote of a majority of votes cast affirmatively or negatively (excluding abstentions) is required for approval. This is a routine proposal so we do not expect any broker non-votes.

With respect to Proposal 5, the amendment of our Amended and Restated Certificate of Incorporation to increase the number of authorized shares of non-voting common stock from 800,000 to 15,800,000, the majority of outstanding shares of voting common stock is required for approval. This is a routine proposal so we do not expect any broker non-votes.

How many votes do I have?

On each matter to be voted upon, you have one vote for each share of common stock you own as of the Record Date.

What if I return a Proxy Card but do not make specific choices?

If we receive a signed and dated Proxy Card and the Proxy Card does not specify how your shares are to be voted, your shares will be voted as follows:

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If any other matter is properly presented at the Annual Meeting, your proxy (one of the individuals named on your Proxy Card) will vote your shares in his or her discretion.

Who is paying for this proxy solicitation?

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

What does it mean if I receive more than one set of materials?

If you receive more than one set of materials, your shares are registered in more than one name or are registered in different accounts. In order to vote all the shares you own, you must either sign and return all of the Proxy Cards or follow the instructions for any alternative voting procedure on each of the Proxy Cards.

Can I change my vote after submitting my proxy?

Yes. You can revoke your proxy at any time before the final vote at the Annual Meeting. If you are the record holder of your shares, you may revoke your proxy in any one of three ways:

If your shares are held by your Broker, you should follow the instructions provided by them.

How do I attend the virtual Annual Meeting?

The live audio webcast of the Annual Meeting will begin promptly at 8:00 a.m. Pacific Time. Online access to the audio webcast will open approximately 15 minutes prior to the start of the Annual Meeting to allow time for our stockholders to log-in and test their devices’ audio system. We encourage you to access the meeting in advance of the designated start time.

To attend the Annual Meeting, stockholders will need to log-in to following instructions by registering at www.proxydocs.com/ALGS.

Is technical assistance provided before and during the virtual Annual Meeting?

Beginning 15 minutes prior to the start of, and during, the virtual Annual Meeting, we will have a support team ready to assist stockholders with any technical difficulties they may have accessing or hearing the virtual meeting.

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If you encounter any difficulties accessing the virtual meeting during the check-in or meeting time, please call the technical support number that will be posted on the virtual stockholder meeting log-in page.

When are stockholder proposals due for next year’s Annual Meeting?

To be considered for inclusion in next year’s proxy materials, your proposal must be submitted in writing by January 6, 2026, to the Secretary of the Company at One Corporate Drive, 2nd Floor, South San Francisco, California 94080; provided, that if the date of the annual meeting is more than 30 days from June 25, 2026, the deadline is a reasonable time before we begin to print and send our proxy materials for next year’s annual meeting. Pursuant to the bylaws, in order for a stockholder to present a proposal for next year’s annual meeting, other than proposals to be included in the proxy statement as described above, or to nominate a director, you must do so between February 25, 2026 and March 27, 2026; provided that if the date of that annual meeting is more than 30 days before or more than 60 days after June 25, 2026, you must give notice not later than the 90th day prior to the annual meeting date or, if later, the 10th day following the day on which public disclosure of the annual meeting date is first made by us. You are also advised to review our bylaws, which contain additional requirements about advance notice of stockholder proposals and director nominations. In addition to satisfying the foregoing requirements under our bylaws, to comply with the universal proxy rules, stockholders who intend to solicit proxies in support of director nominees other than our nominees must provide notice that sets forth the information required by Rule 14a-19 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), no later than 60 days prior to the anniversary of the previous year’s annual meeting (no later than April 26, 2026 for the 2026 annual meeting of stockholders). If the date of the 2026 annual meeting of stockholders is changed by more than 30 days from the anniversary of the 2025 Annual Meeting, then notice must be provided by the later of 60 days prior to the date of the 2026 annual meeting of stockholders or the 10th day following the day on which public announcement of the date of the 2026 annual meeting of stockholders is first made by us.

We intend to file a proxy statement and WHITE proxy card with the SEC in connection with our solicitation of proxies for our 2026 annual meeting. Stockholders may obtain our proxy statement (and any amendments and supplements) and other documents as and when filed by us with the SEC without charge from the SEC’s website at www.sec.gov.

What is the quorum requirement?

A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if the holders of a majority in voting power of the shares of common stock issued and outstanding and entitled to vote are present in attendance online or represented by proxy at the Annual Meeting. On the Record Date, there were 5,314,801 shares outstanding and entitled to vote. Accordingly, 2,657,401 shares must be represented by stockholders present at the Annual Meeting online or by proxy to have a quorum.

Your shares will be counted toward the quorum only if you submit a valid proxy or vote at the Annual Meeting online. Abstentions and broker non-votes will be counted toward the quorum requirement. If there is no quorum, either the chair of the Annual Meeting or a majority in voting power of the stockholders entitled to vote at the Annual Meeting, in attendance online or represented by proxy, may adjourn the Annual Meeting to another time or place.

How can I find out the results of the voting at the Annual Meeting?

Voting results will be announced by the filing of a Current Report on Form 8-K within four business days after the Annual Meeting. If final voting results are unavailable at that time, we will file an amended Current Report on Form 8-K within four business days of the day the final results are available.

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Implications of being an “emerging growth company.”

We are an “emerging growth company” as that term is used in the Jumpstart Our Business Startups Act of 2012 and, as such, have elected to comply with certain reduced public company reporting requirements. These reduced reporting requirements include reduced disclosure about our executive compensation arrangements and no non-binding advisory votes on executive compensation. We will remain an emerging growth company until the earlier of: (a) the last day of the fiscal year following the fifth anniversary of the consummation of our initial public offering, (b) the last day of the fiscal year in which we have total annual gross revenue of at least $1.235 billion, (c) the last day of the fiscal year in which we are deemed to be a large accelerated filer, which means the market value of our common stock that is held by non-affiliates exceeds $700 million as of the last business day of the second fiscal quarter of such year or (d) the date on which we have issued more than $1.0 billion in non-convertible debt during the prior three-year period.

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PROPOSAL NO. 1

ELECTION OF DIRECTORS

Our Board is divided into three classes. Each class consists, as nearly as possible, of one-third of the total number of directors, and each class has a staggered, three-year term. Unless the Board determines that vacancies (including vacancies created by increases in the number of directors) shall be filled by the stockholders, and except as otherwise provided by law, vacancies on the Board may be filled only by the affirmative vote of a majority of the remaining directors. A director elected by the Board to fill a vacancy (including a vacancy created by an increase in the number of directors) shall serve for the remainder of the full term of the class of directors in which the vacancy occurred and until such director’s successor is elected and qualified.

The Board currently consists of seven seated directors, divided into the three following classes:

At each annual meeting of stockholders, the successors to directors whose terms will then expire will be elected to serve from the time of election and qualification until the third subsequent annual meeting of stockholders.

Dr. Hirth, Dr. Preston and Ms. Chavez have been nominated to serve as Class II directors and have elected to stand for reelection. If elected, each of Dr. Hirth, Dr. Preston and Ms. Chavez will hold office from the date of such individual’s election by the stockholders until the third subsequent annual meeting of stockholders or until a successor is elected and has been qualified, or until such director’s earlier death, resignation or removal.

Shares represented by executed proxies will be voted, if authority to do so is not withheld, for the election of the three nominees named below. In the event that any nominee should be unavailable for election as a result of an unexpected occurrence, such shares will be voted for the election of such substitute nominee as the Board may propose. Dr. Hirth, Dr. Preston and Ms. Chavez have agreed to serve if elected, and management has no reason to believe that Dr. Hirth, Dr. Preston or Ms. Chavez will be unable to serve. Directors are elected by a plurality of the votes cast at the meeting.

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THE BOARD OF DIRECTORS RECOMMENDS A VOTE

FOR THE ELECTION OF THE NAMED NOMINEES.

The following table sets forth, for the Class II nominees (who are currently standing for reelection), and for our other current directors who will continue in office after the Annual Meeting, information with respect to their ages as of April 28, 2025 and position/office held within the Company:

Set forth below is biographical information for the nominees and each person whose term of office as a director will continue after the Annual Meeting. The following includes certain information regarding our directors’ individual experience, qualifications, attributes and skills that led the Board to conclude that they should serve as directors.

Nominees for Election to a Three-Year Term Expiring at the 2028 Annual Meeting of Stockholders

K. Peter Hirth, Ph.D., has served as a member of our board of directors since August 2018. In 2001, Dr. Hirth co-founded Plexxikon, Inc., a pharmaceutical company, and served as its Chief Executive Officer until April 2013. Dr. Hirth currently serves on the boards of directors of IO Biotech, Inc., a publicly traded biopharmaceutical company, Vaxcyte, Inc., a publicly traded biotechnology company, and several private companies. Dr. Hirth holds a M.Sc. and Ph.D. in Molecular Genetics from Heidelberg University, Germany and completed his post-doctoral work at the University of California, San Diego. We believe that Dr. Hirth’s extensive experience in the biopharmaceutical and biotechnology industries and his educational background provides him with the qualifications and skills necessary to serve as a member of our board of directors.

Heather Preston, M.D., has served as a member of our board of directors since August 2024. Dr. Preston currently serves as a Senior Advisor at TPG Biotech, a venture capital firm, and has served in this capacity since July 2018. From July 2018 to September 2022, Dr. Preston served as Managing Partner at Pivotal BioVenture Partners, a venture capital firm. Prior to that, from May 2005 to July 2018, Dr. Preston served as Managing Director and Partner at TPG Biotech. Dr. Preston currently serves on the board of directors of Oxford BioMedica PLC, a biotechnology company listed on the London Stock Exchange, Oxford Nanopore Technologies, a biotechnology company listed on the London Stock Exchange, Invenra Inc. and Azura Ophthalmics, Inc., each a private biotechnology company. Dr. Preston previously served on the board of directors of Fusion Pharmaceuticals, a public pharmaceutical company, and various biopharmaceutical and therapeutics companies.

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Dr. Preston received a B.S. in Biochemistry from the University of London and a M.D. from the University of Oxford. We believe that Dr. Preston’s extensive experience in the biopharmaceutical investment industry provides her with the qualifications and skills necessary to serve as a member of our board of directors.

Margarita Chavez, J.D., has served as a member of our board of directors since August 2024. Ms. Chavez is currently a Venture Partner at Wellington Partners, a venture capital firm, and has served in this capacity since September 2023. From January 2016 to April 2023, Ms. Chavez served as Managing Director at AbbVie Ventures, the corporate strategic venture capital arm of AbbVie Inc., a public biopharmaceutical company. Prior to that, from January 2013 to December 2015, Ms. Chavez served as Director, Venture & Early Stage Collaborations at AbbVie. From March 2004 to December 2013, Ms. Chavez served in varying roles at Abbott Laboratories, a public medical devices and healthcare company, most recently as Director, Venture Investments, Abbott Biotech Ventures from June 2010 to December 2013. Ms. Chavez also previously worked as a corporate and securities lawyer at Brobeck, Phleger & Harrison LLP and at Rosenblum Parish & Isaacs. Ms. Chavez currently serves on the board of director of Newron Pharmaceuticals S.p.A., a biopharmaceutical company, as well as the Board of Regents at Santa Clara University and P33 Chicago. Ms. Chavez previously served as a member of the board of directors of Carisma Therapeutics Inc., a public biotechnology company, and on the boards of multiple private bioscience and pharmaceutical companies. Ms. Chavez received a B.S. and J.D. from Santa Clara University. We believe that Ms. Chavez’s extensive experience serving as a director, working in venture capital and working with both private and public life sciences companies provides her with the qualifications and skills necessary to serve as a member of our board of directors.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE

FOR THE ELECTION OF THE NAMED NOMINEES.

Directors Continuing in Office Until the 2026 Annual Meeting of Stockholders

Bridget Martell, M.A., M.D., has served as a member of our board of directors since November 2021. Dr. Martell is currently an Operating Partner for Two Bear Capital, a private venture capital firm. Dr. Martell previously served as the President and Chief Executive Officer of Artizan Biosciences, Inc., a biotechnology company from July 2021 to August 2023, and as a part-time Healthcare Venture Partner with AlleyCorp, an early stage venture capital company, from June 2021 to May 2023. Dr. Martell has also served as a member of the board of directors of several private biotechnology companies. Under the auspice of her consulting practice, BAM Consultants LLC, Dr. Martell has held various leadership positions in early stage, private companies, including Chief Medical Officer of Nobias Therapeutics, Inc. from August 2020 to September 2021 and again from June 2023 to March 2024, Verseau Therapeutics, Inc. from December 2020 to October 2021, and RRD International, a boutique Contract Research Organization, from April 2018 to January 2020. Concurrently, Dr. Martell held various full and part-time positions at Kura Oncology, Inc., a clinical-stage biopharmaceutical company, including VP, Clinical Development from October 2017 to January 2020, as Acting Chief Medical Officer from January 2020 to August 2020 and as Senior Scientific Advisor from August 2020 to December 2021. From January 2015 to September 2017, Dr. Martell served as Senior Vice President, New Product Development at Juniper Pharmaceuticals, a publicly held specialty pharmaceuticals company. From October 2011 to April 2013, she was Executive Director, Head Medical Affairs at Purdue Pharma L.P., a privately held pharmaceutical company. Prior to that, Dr. Martell held leadership roles of increasing responsibility at Pfizer Inc., a publicly traded biopharmaceutical company, from 2005 to 2011. Dr. Martell received a B.S. in microbiology from Cornell University, a M.A. in molecular immunology from Boston University and a M.D. from the Chicago Medical School. She completed her internship and residency in internal medicine and was an internal medicine chief resident and RWJ Faculty Clinical Scholar at Yale University. Dr. Martell is board certified in both internal and addiction medicine. We believe that Dr. Martell’s educational experience and extensive experience serving as a director and working with both private and public life sciences companies provides her with the qualifications and skills necessary to serve as a member of our board of directors.

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Carole Nuechterlein, J.D., has served as a member of our board of directors since August 2018. Ms. Nuechterlein joined F. Hoffmann-La Roche Ltd. in 2001 and currently serves as Head of the Roche Venture Fund. She currently serves as a member of the boards of directors of a number of private companies, including Enthera S.r.L., Vivet Therapeutics, CiVi Biopharma, Inc., and Mission Therapeutics Ltd. Ms. Nuechterlein previously served as a member of the board of directors of Entrada Therapeutics, Inc., a publicly traded biopharmaceutical company from April 2020 to June 2023, Millendo Therapeutics, Inc., a publicly traded clinical stage biopharmaceutical company from March 2017 to June 2021, BCTG Acquisition Corp., a publicly traded special purpose acquisition company from September 2020 to August 2021, and AveXis, Inc., a publicly traded gene therapy company from October 2014 to May 2017. She received a B.A. in English and Humanities from Valparaiso University and a J.D. from the University of Michigan. We believe that Ms. Nuechterlein’s extensive experience as a venture capital investor in, and director of, several biotechnology companies, provides her with the qualifications and skills necessary to serve as a member of our board of directors.

Directors Continuing in Office Until the 2027 Annual Meeting of Stockholders

Lawrence M. Blatt, Ph.D., M.B.A., has served as our Chief Executive Officer and a member of our board of directors since February 2018 and as our President since March 2024. Prior to co-founding the Company, Dr. Blatt served as the Global Head of Infectious Diseases and Vaccines at Janssen Pharmaceutical Companies of Johnson & Johnson, a pharmaceutical company, from November 2014 to February 2018. Dr. Blatt co-founded Alios BioPharma, Inc., a biotechnology company, and served as its Chief Executive Officer, President and Director from January 2009 until its acquisition by Janssen Pharmaceutical Companies of Johnson & Johnson in November 2014. Prior to Alios, he served as Chief Scientific Officer at InterMune, Inc., a biotechnology company, from 2002 to 2008. Dr. Blatt previously served on the board of directors of ReViral Ltd. and Alveo Technologies, Inc., which he co-founded in 2014, and Meissa Vaccines, Inc. Dr. Blatt received a B.S. in Microbiology from Indiana University Bloomington, an M.B.A. from California State University, Northridge, and a Ph.D. in Public Health Administration from the University of La Verne. We believe that Dr. Blatt’s extensive experience as an executive of several companies in the biopharmaceutical and biotechnology industries, his extensive knowledge of our company and his educational background provides him with the qualifications and skills necessary to serve as a member of our board of directors.

James Scopa, J.D., M.B.A., has served as a member of our board of directors since April 2021. Mr. Scopa served as a Managing Director of MPM Capital from May 2005 to June 2017. Mr. Scopa spent the prior 15 years working at Deutsche Banc Alex. Brown and Thomas Weisel Partners advising growth companies in biopharmaceuticals and medical devices. At Deutsche Banc Alex. Brown, Mr. Scopa served as Managing Director and Global Co-Head of Healthcare Investment Banking, and at Thomas Weisel Partners, Mr. Scopa served on the Investment Committee for TWP’s Health Care venture fund as well as Co-Director of Healthcare Investment Banking. Mr. Scopa currently serves on the board of directors of various biotechnology companies, including Neuron23, Inc., and Adverum Biotechnologies, Inc. He previously served on the boards of DICE Therapeutics (sold to Eli Lilly), Semma Therapeutics, Inc. (sold to Vertex Pharmaceuticals Incorporated), True North Therapeutics, Inc. (sold to Bioverativ Inc.), and iPierian, Inc. (sold to Bristol-Myers Squibb). Mr. Scopa also currently serves as a member of the Investment Advisory Committee and Advisory Board of One Ventures, an Australian based venture capital firm. Mr. Scopa holds an A.B. from Harvard College, an M.B.A. from Harvard Business School and a J.D. from Harvard Law School. We believe that Mr. Scopa’s extensive experience in the biotechnology and biopharmaceuticals industries and his service as a director for numerous companies provides him with the qualifications and skills necessary to serve as a member of our board of directors.

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PROPOSAL NO. 2

RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Audit Committee of our Board has appointed Ernst & Young LLP (“EY”), as our independent registered public accounting firm for the year ending December 31, 2025, and is seeking ratification of such appointment by our stockholders at the Annual Meeting. EY has audited our financial statements for each of our fiscal years since the fiscal year ended December 31, 2018. Representatives of EY are expected to be in attendance online at the Annual Meeting. They will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions.

Neither our bylaws nor other governing documents or law require stockholder ratification of the appointment of EY as our independent registered public accounting firm. However, the Audit Committee is submitting the appointment of EY to our stockholders for ratification as a matter of good corporate practice. If our stockholders fail to ratify the appointment, the Audit Committee will reconsider whether or not to retain EY. Even if the appointment is ratified, the Audit Committee in its discretion may direct the appointment of a different independent registered public accounting firm at any time during the year if they determine that such a change would be in the best interests of the Company and our stockholders.

Principal Accountant Fees and Services

The following table represents aggregate fees billed by EY relating to the fiscal years ended December 31, 2024 and 2023.

Pre-Approval Policies and Procedures

Pursuant to its charter, the Audit Committee or a delegate of the Audit Committee pre-approves all audit and non-audit services provided by its independent registered public accounting firm, unless the engagement is entered into pursuant to appropriate additional pre-approval policies established by the Audit Committee. This policy is set forth in the charter of the Audit Committee and is available at https://investor.aligos.com/corporate-governance/governance-overview.

The Audit Committee approved all of the audit, audit-related, tax and other services provided by EY for 2024 and 2023, including the audit, audit-related, tax and other services provided by EY and, in each case, the estimated costs of those services. Actual amounts billed, to the extent in excess of the estimated amounts, are periodically reviewed and approved by the Audit Committee.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR RATIFICATION OF APPOINTMENT OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM.

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PROPOSAL NO. 3

APPROVAL OF AMENDMENT TO OUR 2020 INCENTIVE AWARD PLAN

The 2020 Plan was initially approved and adopted by our Board and stockholders in October 2020, and amended by our Board in March 2024 and approved by our stockholders in June 2024. The 2020 Plan, as amended, reserved for issuance thereunder an aggregate of the sum of (i) 177,072 shares of common stock; (ii) any shares of common stock that were subject to awards outstanding under the Company’s 2018 Equity Incentive Plan (the “2018 Plan”) as of October 14, 2020 that become available for issuance under the 2020 Plan pursuant to Article V of the 2020 Plan; and (iii) an annual increase on the first day of each calendar year beginning in 2021 and ending in 2030, equal to the lesser of (A) 5% of the shares of common stock outstanding or, commencing January 1, 2025, issuable upon exercise of outstanding pre-funded warrants with an exercise price per share equal to one penny or less, in each case, on the last day of the immediately preceding fiscal year and (B) such smaller number of shares of common stock as determined by the Board.

In April 2025, our Board approved, subject to stockholder approval, an amendment to the 2020 Plan to increase the number of shares reserved and scheduled to be reserved under the 2020 Plan by 1,000,000 shares, such that, if this proposal is approved by stockholders, the number of shares reserved for issuance under the 2020 Plan will equal an aggregate of the sum of (i) 177,072 shares of common stock; (ii) any shares of common stock that were subject to awards outstanding under the 2018 Plan as of October 14, 2020 that become available for issuance under the 2020 Plan pursuant to Article V of the 2020 Plan; (iii) an annual increase on the first day of each calendar year beginning in 2021 and ending in 2030, equal to the lesser of (A) 5% of the shares of common stock outstanding or, commencing January 1, 2025, issuable upon exercise of outstanding pre-funded warrants with an exercise price per share equal to one penny or less, in each case, on the last day of the immediately preceding fiscal year and (B) such smaller number of shares of common stock as determined by the Board; and (iv) 1,000,000 shares of common stock. The Plan Amendment is attached hereto as Appendix A. The 2020 Plan, incorporating the Plan Amendment, is referred to herein as the “Amended Plan.”

A summary of the Amended Plan is set forth below. This summary is qualified in its entirety by the full text of the proposed Amended Plan.

Reasons for the Proposed Amendment

Our Board unanimously recommends that you vote FOR the Plan Amendment Proposal, including for the following reasons:

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Burn Rate and Overhang

In administering our equity program, we consider both our “burn rate” and our “overhang.” We define “burn rate” as the number of shares underlying stock options granted in the year, net of cancellations, divided by the sum of the undiluted weighted-average shares of our common stock outstanding during the year. The “burn rate” measures the potential dilutive effect of our annual stock option grants. We granted stock options covering 435,282 shares of our common stock and 4,241 restricted stock units in 2024 and stock options covering 222,495 shares of common stock and no restricted stock units were forfeited or canceled in 2024. The number of undiluted weighted-average shares outstanding during 2024 was 3,022,426 or 6,264,612 inclusive of pre-funded warrants, and the total number of shares of our common stock underlying stock options and restricted stock units was 632,414. For 2024, our burn rate excluding and including pre-funded warrants was 7.18% and 3.46%, respectively. Our three-year average burn rate excluding and including pre-funded warrants from 2022 through 2024 was 6.11% and 4.76%, respectively.

We define “overhang” as the shares subject to stock options outstanding but not exercised, plus shares available to be granted (the “available shares”), divided by the total shares of common stock outstanding plus the available shares. The overhang measures the potential dilutive effect of outstanding stock options and available shares.

The following table shows the details of shares available for grant as of March 31, 2025, and as of December 31, 2024, including overhang calculations, and assumes stockholders approve the Amended Plan:

We believe that our burn rate and equity overhang are reasonable in relation to companies in our industry and reflect a judicious use of equity for compensation purposes.

Overview of Key Change Implemented by the Plan Amendment

The Plan Amendment increases the number of shares reserved and scheduled to be reserved under the 2020 Plan by 1,000,000, such that, if this proposal is approved by stockholders, the number of shares reserved for issuance under the 2020 Plan will equal an aggregate of the sum of (i) 177,072 shares of common stock; (ii) any shares of common stock that were subject to awards outstanding under the Company’s 2018 Plan as of October 14, 2020 that become available for issuance under the 2020 Plan pursuant to Article V of the 2020 Plan; (iii) an annual increase on the first day of each calendar year beginning in 2021 and ending in 2030, equal to the lesser of (A) 5% of the shares of common stock outstanding or, commencing January 1, 2025, issuable upon exercise of outstanding pre-funded warrants with an exercise price per share equal to one penny or less, in each case, on the last day of the immediately preceding fiscal year and (B) such smaller number of shares of common stock as determined by the Board; and (iv) 1,000,000 shares of common stock.

In the event that stockholders do not approve the Plan Amendment Proposal, the Plan Amendment will not become effective and the 2020 Plan will be reinstated without including the 1,000,000 share increase. Awards will continue to be made under the 2020 Plan to the extent that there are available shares of common stock to do so.

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Summary

A summary of the principal provisions of the Amended Plan is set forth below. The summary is qualified by reference to the full text of the Amended Plan, which is included as Appendix A to this proxy statement.

General

On March 31, 2025, the closing price of our common stock on the Nasdaq Capital Market was $8.25 per share.

Administration

The Compensation Committee (or, with respect to awards to non-employee directors, our Board) (together, the “administrator”) is charged with the general administration of the Amended Plan. The Amended Plan provides that, subject to certain limitations, our Board and the Compensation Committee may from time-to-time delegate its authority to grant awards to a committee consisting of one or more members of our Board or one or more of our officers. Subject to the terms and conditions of the Amended Plan, the administrator will have the authority to select the persons to whom awards are to be made; to determine the type of awards to be granted, the number of shares to be subject to awards and the terms and conditions of awards; to determine when awards can be settled in cash, shares, other awards or whether to cancel, forfeit or surrender awards; to prescribe the form award agreements; to accelerate vesting or lapse restrictions; and to make all other determinations and to take all other actions necessary or advisable for the administration of the Amended Plan. The administrator will also be authorized to adopt, amend or rescind rules relating to the administration of the Amended Plan, excluding certain matters described below that will require the approval of our stockholders.

Eligibility

Persons eligible to participate in the Amended Plan include all members of the Board, currently comprised of 6 non-employee directors and approximately 70 employees (including 4 Executive Officers) of the Company and its subsidiaries, as well as approximately 33 consultants of the Company and its subsidiaries, in each case, as determined by the administrator of the Amended Plan. Only employees may be granted ISOs under the Amended Plan.

Limitation on Awards and Shares Available

If our stockholders approve the Amended Plan, the number of shares available for issuance under Amended Plan (592,554 shares as of March 31, 2025) will increase by 1,000,000 shares. In addition, the shares of common

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stock authorized for issuance pursuant to awards under the 2020 Plan will continue to increase by (i) any shares of common stock that were subject to awards outstanding under the 2018 Plan as of October 14, 2020 that become available for issuance under the 2020 Plan pursuant to Article V of the 2020 Plan and (ii) an annual increase on the first day of each calendar year from 2026 and through 2030, equal to the lesser of (A) 5% of the shares of common stock outstanding or issuable upon exercise of outstanding pre-funded warrants with an exercise price per share equal to one penny or less, in each case, on the last day of the immediately preceding fiscal year and (B) such smaller number of shares of common stock as determined by the Board. The maximum number of shares of our common stock that could be issuable upon exercise of incentive stock options will remain 1,306,909.

If all or any part of an award granted under the Amended Plan or the 2018 Plan expires, lapses or is terminated, converted into an award in respect of shares of another entity in connection with a spin-off or other similar event, exchanged for cash, surrendered, repurchased, canceled without having been fully exercised or forfeited, in any case, in a manner that results in us acquiring shares of common stock covered by the awards at a price not greater than the price paid for such shares or not issuing any shares covered by the award, the unused shares of our common stock covered by the award will, as applicable, become or again be available for awards under the Amended Plan. In addition, the following shares of our common stock will be available for future grants of awards: (i) shares tendered or withheld by us in payment of the exercise price of an option; (ii) shares tendered or withheld by us to satisfy any tax withholding obligation with respect to an award; and (iii) shares subject to SARs that are not issued in connection with the stock settlement of the SARs at exercise.

As of March 31, 2025, the closing trading price of a share of our common stock on the Nasdaq Capital Market was $8.25.

Awards

The Amended Plan provides for the grant of ISOs, NSOs, SARs, restricted stock, RSUs, dividend equivalents, performance bonus awards and other stock or cash-based awards. Each award will be set forth in an agreement with the person receiving the award and will set forth the type, terms and conditions of the award, including exercise price, vesting schedule and treatment of awards upon termination of employment, if applicable. Vesting provisions may require that certain conditions be met, such as continued employment or specified performance goals before an awardee may receive the shares underlying an award or before such shares become freely tradeable and nonforfeitable.

Stock Options. Stock options, including ISOs and NSOs may be granted pursuant to the Amended Plan. The per share exercise price of all stock options granted pursuant to the Amended Plan will not be less than 100% of the fair market value of a share of common stock on the date of grant, or in the case of ISOs granted to an individual who owns (or is deemed to own) at least 10% of the total combined voting power of all classes of our capital stock, 110% of the fair market value of a share on the date of grant. Stock options may be exercised as determined by the administrator, but in no event more than ten years after their date of grant, or in the case of ISOs granted to an individual who owns (or is deemed to own) at least 10% of the total combined voting power of all class of our capital stock, five years. The aggregate fair market value of the shares with respect to which options intended to be incentive stock options are exercisable for the first time by an employee in any calendar year may not exceed $100,000, or such other amount as the Internal Revenue Code of 1986, as amended (the “Code”) provides.

Restricted Stock. Restricted stock may be granted pursuant to the Amended Plan. A restricted stock award is the grant of shares of common stock that is nontransferable and may be subject to substantial risk of forfeiture until specific conditions are met. Conditions may be based on continuing employment or service or achieving performance goals. During the period of restriction, participants holding shares of restricted stock have full voting and dividend rights with respect to such shares. The restrictions will lapse in accordance with a schedule or other conditions determined by the administrator. Dividends that otherwise would be paid prior to vesting are held by the Company and will be paid to the participants only to the extent that the vesting conditions are met.

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SARs. SARs may be granted pursuant to the Amended Plan, either alone or in tandem with other awards. A SAR is the right to receive payment of an amount equal to the excess of the fair market value of a share of common stock on the date of exercise of the SAR over the fair market value of a share of common stock on the date of grant of the SAR. SARs may be paid in cash or stock. SARs may be exercised as determined by the administrator, but in no event more than 10 years after their date of grant.

RSUs. RSUs represent the right to receive shares of common stock at a specified date in the future, subject to forfeiture of such right. If the RSUs have not been forfeited, then on the date specified in the agreement evidencing the RSU award we will deliver to the holder of the RSUs unrestricted shares of common stock which will be freely transferable.

Dividend Equivalents / Dividends. Dividend equivalents represent the value of the dividends per share of common stock paid by the Company, calculated with reference to the number of shares covered by an Award (other than an option or SAR) held by the participant. Dividend Equivalents will not be granted on options or SARs.

Performance Bonus Awards. Each performance bonus award constitutes the right to receive a bonus denominated in the form of cash (but may be payable in cash, stock or a combination thereof) and is payable upon the attainment of performance goals that are established by the administrator and relate to one or more of performance or other specific criteria, including service to us or our subsidiaries, in each case on a specified date or dates or over any period or periods determined by the Administrator.

Other Stock or Cash Based Awards. Other stock or cash-based awards are awards of cash, fully vested shares of common stock and other awards valued wholly or partially by referring to, or otherwise based on, our common stock. Other stock or cash-based awards may be granted to participants and may also be available as a payment form in the settlement of other awards, as standalone payments and as payment in lieu of base salary, bonus, fees or other cash compensation otherwise payable to any individual who is eligible to receive awards. The administrator will determine the terms and conditions of other stock or cash-based awards, which may include vesting conditions based on continued service, performance and/or other conditions.

Limits for Non-Employee Directors. Under the Amended Plan, the grant date fair value of equity-based awards granted to a non-employee director during any calendar year shall not exceed $1,500,000.

Prohibition on Loans for Award Payments. Directors or executive officers of the Company are not permitted to make payment with respect to any awards granted under the Amended Plan with loans from the Company.

Repricing Without Stockholder Approval

The administrator retains the discretion to amend the terms of outstanding awards without the approval of our stockholders to (a) reduce the exercise price per share of outstanding options or SARs or (b) cancel outstanding options or SARs in exchange for cash, other awards or options or SARs with an exercise price per share that is less than the exercise price per share of the original options or SARs.

Awards Subject to Clawback

Awards granted under the Amended Plan (including any proceeds, gains or other economic benefit actually or constructively received by a participant) are subject to the clawback provisions of our Policy for Recovery of Erroneously Awarded Compensation as well as may be required by applicable law or any other clawback policy adopted by us.

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MISCELLANEOUS PROVISIONS

Adjustment Upon Certain Events

In the event of a stock dividend, stock split, combination or exchange of shares, merger, consolidation, spin-off, recapitalization, distribution of assets or any other corporate event affecting the common stock or the share price of the common stock in a manner that causes dilution or enlargement of benefits or potential benefits under the Amended Plan, the administrator will make proportionate and equitable adjustments, in its discretion, to: (i) the aggregate number and types of shares of stock that may be issued under the Amended Plan; (ii) the number and kind of shares subject to outstanding awards; (iii) the terms and conditions of any outstanding awards (including any applicable performance targets); and/or (iv) the grant or exercise price for any outstanding awards.

In addition, in such a case as noted above or in the event of any unusual or nonrecurring transactions or events affecting the Company or the financial statements of the Company, or of changes in applicable laws, the administrator, may, in its discretion, subject to the terms of the Amended Plan, take any of the following actions if it determines that such action is appropriate in order to prevent the dilution or enlargement of benefits or potential benefits intended to be made available under the Amended Plan or with respect to any award: (i) provide for either the payment and termination of the award or the replacement of the award; (ii) provide that the awards shall be assumed by the successor or survivor corporation, or a parent or subsidiary thereof, or shall be substituted for by similar awards covering the stock of the successor or survivor corporation, or a parent or subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices; (iii) make adjustments in the number and type of shares of stock (or other securities or property) subject to outstanding awards and/or in the terms and conditions of (including the grant or exercise price), and the criteria included in, outstanding awards which may be granted in the future; (iv) provide for the acceleration of vesting or exercisability of the awards; (v) replace such Awards with other rights or property selected by the Administrator; and/or (vi) provide that the awards cannot vest or be exercised after the event that triggers the action.

If a Change in Control of the Company occurs (as defined in the Amended Plan), all outstanding options and SARs that are not exercised shall be assumed or substituted by the surviving corporation and other outstanding awards shall be converted into similar awards of the surviving corporation. If the surviving corporation refuses to assume or substitute for an award, the award will accelerate and become fully vested and exercisable upon the Change in Control and all restrictions on the award will lapse.

Transferability of Awards

Except by will or the laws of descent and distribution or pursuant to beneficiary designation procedures approved from time to time by the administrator or as otherwise provided by the administrator, no award granted under the Amended Plan may be assigned, transferred or otherwise disposed of by the awardee, unless and until the award has been exercised or the shares underlying the award have been issued, and all restrictions applicable to the shares have lapsed.

Rights as a Stockholder

An awardee will not have any rights as a stockholder with respect to the shares covered by an award until the awardee becomes the owner of the shares.

No Rights as Employee

Nothing in the Amended Plan or in any award agreement will give any awardee under the Amended Plan any right to continue as an employee, consultant or non-employee director for our Company or any of our subsidiaries or will interfere with or restrict in any way the rights of any such entity to discharge any awardee at any time.

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Data Privacy

The Amended Plan provides that, as a condition of receipt of any award, each awardee explicitly consents to the collection, use and transfer, in electronic or other form, of personal data by and among, as applicable, us and our subsidiaries, including any transfer of this data required to a broker or other third party with whom we or any of our subsidiaries or the awardee may elect to deposit any shares, to implement, administer and manage the awardee’s participation in the Amended Plan.

Tax Withholding

We may deduct or withhold, or require an awardee to remit to our Company, an amount sufficient to satisfy applicable withholding tax obligations with respect to any taxable event concerning the awardee arising as a result of the Amended Plan or any award. The administrator may in its discretion and in satisfaction of the foregoing requirement, or in satisfaction of such additional withholding obligations as an awardee may have elected, allow the awardee to satisfy these obligations by means of cash or check, wire transfer of immediately available funds, shares, broker-assisted cashless exercise or any other form of legal consideration acceptable to the administrator. The Administrator may allow the awardee to elect to have us withhold shares otherwise issuable under any award (or allow the surrender of shares). The number of shares which may be withheld (or surrendered) will be no greater than the number of shares having a fair market value on the date of withholding or repurchase equal to the aggregate amount of such liabilities based on the maximum statutory withholding rates in the awardee’s applicable jurisdictions for federal, state, local and foreign income and payroll taxes.

Amendment and Termination

The Amended Plan may be amended, modified or terminated at any time and from time to time; provided that, no amendment, suspension or termination of the Amended Plan shall, without the consent of the awardee, materially and adversely affect any rights or obligations under any award theretofore granted or awarded, unless the award itself otherwise expressly so provides or such action is to comply with the requirements of any applicable clawback policy or Section 409A of the Code.

Notwithstanding the foregoing, the Amended Plan requires us to obtain stockholder approval within twelve months before or after increasing the maximum number of shares available for issuance under the Amended Plan.

In addition, subject to applicable law and the limitations above, the administrator may amend, modify or terminate any outstanding award, including substituting another award of the same or a different type, changing the date of exercise or settlement, and converting an ISO to an NSO. The awardee’s consent to such action will be required unless (a) the administrator determines that the action, taking into account any related action, would not materially and adversely affect the awardee, or (b) the change is otherwise permitted under the Amended Plan.

Termination

The administrator may terminate or suspend the Amended Plan at any time, provided, that no ISOs will be granted pursuant to the Amended Plan after the tenth anniversary of the date the 2020 Plan was approved by the Board. Any award outstanding on the termination date of the Amended Plan will remain in force according to the terms of the Amended Plan and the applicable award agreement.

FEDERAL INCOME TAX CONSEQUENCES

This discussion regarding federal tax consequences is intended for the general information of our stockholders, not Amended Plan awardees. Alternative minimum tax and state and local income taxes are not discussed and may vary depending on individual circumstances and from locality to locality.

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A participant granted NSOs having an exercise price per share that equals at least fair market value on the date of grant will not recognize taxable income at the time of grant. The Company is generally entitled to deduct and the optionee recognizes taxable income in an amount equal to the difference between the option exercise price and the fair market value of the shares at the time of exercise. A participant granted ISOs will not recognize taxable income upon grant. Additionally, if applicable holding period requirements are met, the participant will not recognize ordinary income at the time of exercise. However, the excess of the fair market value of the Common Stock received over the option price is an item of tax preference income potentially subject to the alternative minimum tax. If stock acquired upon exercise of an ISO is held for a minimum of two years from the date of grant and one year from the date of exercise, the gain or loss (in an amount equal to the difference between the fair market value on the date of sale and the exercise price) upon disposition of the stock will be treated as a long-term capital gain or loss, and the Company will not be entitled to any deduction. If the holding period requirements are not met, the ISO will be treated as one which does not meet the requirements of the Code for ISOs and the tax consequences described for NSOs will apply.

The current federal income tax consequences of other awards authorized under the Amended Plan generally follow certain basic patterns: SARs are taxed and deductible in substantially the same manner as NSOs; nontransferable restricted stock subject to a substantial risk of forfeiture results in income recognition equal to the excess of the fair market value over the price paid, if any, only at the time the restrictions lapse (unless the recipient elects to accelerate recognition as of the date of grant); RSUs, dividend equivalents and other types of awards are generally subject to tax at the time of payment. Compensation otherwise effectively deferred is taxed when paid. In each of the foregoing cases, the Company will generally have a corresponding deduction at the time the participant recognizes income, subject to Section 162(m) of the Code with respect to our current and former NEOs. An award of a retainer, committee fee or meeting-based fee generally realizes ordinary income and we are entitled to a deduction in an amount equal to the amount of such retainer or fees upon payment thereof.

New Plan Benefits

As of March 31, 2025, 1,315,690 shares of our common stock underlie stock options and restricted stock units granted under the Amended Plan. Other than with respect to annual grants of stock options to our non-employee directors that will be made immediately following the date of the Annual Meeting, all future awards under the Amended Plan are subject to the discretion of the administrator, and therefore it is not possible to determine the benefits that will be received in the future by other participants in the Amended Plan.

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Awards Granted Under the Amended Plan

The following table shows the number of shares of our common stock underlying options and restricted stock units granted under the Amended Plan through March 31, 2025 and stock options to be received in the future, to the extent determinable, by certain individuals and certain groups of individuals.

Equity Compensation Plan Information

See the section of this Proxy Statement titled “Equity Compensation Plan Information” for additional information regarding the Amended Plan.

Interests of Directors and Executive Officers

Our directors and executive officers (including our named executive officers) have substantial interests in the matters set forth in the Plan Amendment Proposal since equity awards may be granted to them in the future under the Amended Plan.

Vote Required; Recommendation of the Board of Directors

The affirmative vote of a majority of the votes cast affirmatively or negatively (excluding abstentions) will be required to approve the Plan Amendment Proposal. Abstentions and broker non-votes with respect to this proposal will be counted for purposes of establishing a quorum. Broker non-votes will not affect the outcome of the Plan Amendment Proposal.

OUR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE STOCKHOLDERS

VOTE FOR PROPOSAL NO. 3 TO INCREASE THE NUMBER OF SHARES RESERVED AND

SCHEDULED TO BE RESERVED UNDER THE 2020 PLAN BY 1,000,000 SHARES.

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PROPOSAL NO. 4

APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF

INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF VOTING

COMMON STOCK FROM 20,000,000 TO 100,000,000

Summary

Presently, our Amended and Restated Certificate of Incorporation authorizes the issuance of 20,000,000 shares of common stock, par value $0.0001 per share, that are designated as “Voting Common Stock,” 800,000 shares of common stock, par value $0.0001 per share, that are designated as “Non-Voting Common Stock” and 10,000,000 shares of preferred stock, par value $0.0001 per share.

As of March 31, 2025, the Company had 5,314,801 shares of voting common stock issued and outstanding, and the following shares of voting common stock were reserved for issuance:

As of March 31, 2025, based on the figures above 3,833,815 shares of voting common stock is available for issuance. In addition, as of March 31, 2025, the Company had 800,000 shares of non-voting common stock issued and outstanding and no shares of authorized non-voting common stock available for issuance.

In April 2025, the board of directors determined that the increase in the number of shares of voting common stock was advisable and in the best interest of the Company and its stockholders and unanimously approved an amendment to Article IV of our Amended and Restated Certificate of Incorporation to increase the authorized number of shares of voting common stock from 20,000,000 to 100,000,000 shares, resulting in an increase in our total authorized number of shares of capital stock from 30,800,000 to 110,800,000, subject to stockholder approval of the amendment. If Proposal 4 and Proposal 5 are approved, the amendment to our Amended and Restated Certificate of Incorporation would increase the total authorized number of shares of capital stock from 30,800,000 to 125,800,000.

Effects of Proposed Amendment

Any additional authorized shares of voting common stock will be identical to the shares of voting common stock now authorized and outstanding. The proposed increase in the number of shares of voting common stock will not change the number of shares of stock outstanding, have any immediate dilutive effect or change the

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rights of current holders of our voting common stock. However, to the extent that the additional authorized shares of voting common stock are issued in the future, they may decrease existing stockholders’ percentage equity ownership and, depending on the price at which they are issued, could be dilutive to the voting rights of existing stockholders and may dilute earnings and book value on a per share basis. Stockholders do not have preemptive rights to acquire the voting common stock authorized by this amendment, which means that current stockholders do not have a prior right to purchase any new issue of capital stock in order to maintain their proportionate ownership of our voting common stock.

In addition to dilution, the availability of additional shares of voting common stock for issuance could, under certain circumstances, discourage or make more difficult any efforts to obtain control of us. The Board is not aware of any actual or contemplated attempt to acquire control of the Company and this proposal is not being presented with the intent that it be used to prevent or discourage any acquisition attempt. However, nothing would prevent the Board from taking any actions that it deems consistent with its fiduciary duties.

If the Voting Common Stock Authorized Shares Amendment is adopted by stockholders, all other sections of the Amended and Restated Certificate of Incorporation would be maintained in their current form, subject to any amendment to increase the authorized numbers of shares of non-voting common stock, if approved. For information regarding the Non-Voting Common Stock Authorized Shares Amendment, see “PROPOSAL NO. 5 APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF NON-VOTING COMMON STOCK FROM 800,000 TO 15,800,000.”

Text of the Proposed Amendment

If our Amended and Restated Certificate of Incorporation were approved, Article IV, Section 1 of the Company’s Amended and Restated Certificate of Incorporation would read in its entirety as follows (assuming Proposal 5 is not approved):

“Section 1. This Corporation is authorized to issue two classes of capital stock which shall be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock that the Corporation is authorized to issue is 110,800,000, of which 100,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 100,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,” each with the following rights, preferences, powers, privileges and restrictions, qualifications and limitations. Any reference to “Common Stock” issued by the Corporation in any contract, agreement or otherwise to which the Corporation is a party, whether before or after the date of filing of this Amended and Restated Certificate of Incorporation, shall refer to Voting Common Stock, unless specific reference is made to the Non-Voting Common Stock. Each share of Voting Common Stock shall entitle the holder thereof to one (1) vote on any matter submitted to a vote at a meeting of stockholders. Non-Voting Common Stock (i) shall be non-voting except as may be required by law and (ii) shall not entitle the holder thereof to vote on the election of directors at any time. The Common Stock shall have a par value of $0.0001 per share and the Preferred Stock shall have a par value of $0.0001 per share. Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the stock of the Corporation with the power to vote thereon irrespective of the provisions of Section 242(b)(2) of the Delaware General Corporation Law or any successor provision thereof, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.”

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If our Amended and Restated Certificate of Incorporation were approved, Article IV, Section 1 of the Company’s Amended and Restated Certificate of Incorporation would read in its entirety as follows (assuming Proposal 5 is approved):

“Section 1. This Corporation is authorized to issue two classes of capital stock which shall be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock that the Corporation is authorized to issue is 125,800,000, of which 115,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 100,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 15,800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,” each with the following rights, preferences, powers, privileges and restrictions, qualifications and limitations. Any reference to “Common Stock” issued by the Corporation in any contract, agreement or otherwise to which the Corporation is a party, whether before or after the date of filing of this Amended and Restated Certificate of Incorporation, shall refer to Voting Common Stock, unless specific reference is made to the Non-Voting Common Stock. Each share of Voting Common Stock shall entitle the holder thereof to one (1) vote on any matter submitted to a vote at a meeting of stockholders. Non-Voting Common Stock (i) shall be non-voting except as may be required by law and (ii) shall not entitle the holder thereof to vote on the election of directors at any time. The Common Stock shall have a par value of $0.0001 per share and the Preferred Stock shall have a par value of $0.0001 per share. Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the stock of the Corporation with the power to vote thereon irrespective of the provisions of Section 242(b)(2) of the Delaware General Corporation Law or any successor provision thereof, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.”

The form of the amendment, if both Proposal 4 and Proposal 5 are approved, is attached to this Proxy Statement as Appendix B.

Timing of the Proposed Amendment

If the Voting Common Stock Authorized Shares Amendment is approved by our stockholders, the amendment will become effective immediately upon the filing of a Certificate of Amendment to our Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware, which we expect to file on or before July 31, 2025, if approved. If the Voting Common Stock Authorized Shares Amendment is not approved by our stockholders, the number of authorized shares of voting common stock will remain unchanged.

If adopted by our stockholders, the Non-Voting Common Stock Authorized Shares Amendment would be effected at the same time as the Voting Common Stock Authorized Shares Amendment. For additional information regarding the Non-Voting Authorized Shares Amendment, see “PROPOSAL NO. 5 APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF NON-VOTING COMMON STOCK FROM 800,000 TO 15,800,000.”

Risks to Stockholders of Non-Approval

If our stockholders do not approve this proposal, the Board may be precluded from pursuing a wide range of potential corporate opportunities that might raise necessary cash or otherwise be in the best interests of the Company and the best interests of our stockholders. This could have a material adverse effect on our business and prospects.

Vote Required; Recommendation of the Board of Directors

The affirmative vote of the majority of votes cast affirmatively or negatively (excluding abstentions) will be required to approve the amendment of our Amended and Restated Certificate of Incorporation to increase the

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number of authorized shares of voting common stock from 20,000,000 to 100,000,000 shares. As this is a routine proposal, we do not expect any broker non-votes.

The Board believes that additional authorized shares of voting common stock would give the Company the necessary flexibility to issue shares for various corporate purposes, including, in particular, capital-raising or financing transactions, and enable the Company to take timely advantage of market conditions and opportunities. Other corporate purposes for which the additional authorized shares could be used include, but are not limited to, potential strategic transactions, including mergers, acquisitions, and other business combinations; future development of the Company’s pipeline of products; future grants and awards under equity compensation plans; stock dividends; and other general corporate working capital needs. The Board currently has no specific designated purpose for the increase in authorized shares of voting common stock. As a general matter, the Board would be able to issue the additional authorized shares of voting common stock at its discretion from time to time, subject to and as limited by, rules or listing requirements of the Nasdaq or any other then applicable securities exchange, and without further action or approval of the Company’s stockholders. The discretion of the Board, however, would be subject to any other applicable rules and regulations in the case of any particular issuance or reservation for issuance that might require our stockholders to approve such transaction.

THE BOARD OF DIRECTORS RECOMMENDS THAT STOCKHOLDERS VOTE FOR THE

RESOLUTION TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF

INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF VOTING

COMMON STOCK FROM 20,000,000 TO 100,000,000.

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PROPOSAL NO. 5

APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF NON-VOTING COMMON STOCK FROM 800,000 TO 15,800,000

Summary

Presently, our Amended and Restated Certificate of Incorporation authorizes the issuance of 20,000,000 shares of common stock, par value $0.0001 per share, that are designated as “Voting Common Stock,” 800,000 shares of common stock, par value $0.0001 per share, that are designated as “Non-Voting Common Stock” and 10,000,000 shares of preferred stock, par value $0.0001 per share. As of March 31, 2025, the Company had 800,000 shares of non-voting common stock issued and outstanding and no shares of authorized non-voting common stock available for issuance.

In April 2025, the board of directors determined that the increase in the number of shares of non-voting common stock was advisable and in the best interest of the Company and its stockholders and unanimously approved an amendment to Article IV of our Amended and Restated Certificate of Incorporation to increase the authorized number of shares of non-voting common stock from 800,000 to 15,800,000 shares, resulting in an increase in our total authorized number of shares of capital stock from 30,800,000 to 45,800,000, subject to stockholder approval of the amendment. If Proposal 4 and Proposal 5 are approved, the amendment to our Amended and Restated Certificate of Incorporation would increase the total authorized number of shares of capital stock from 30,800,000 to 125,800,000.

Effects of Proposed Amendment

Any additional authorized shares of non-voting common stock will be identical to the shares of non-voting common stock now authorized and outstanding. The proposed increase in the number of shares of non-voting common stock will not change the number of shares of stock outstanding, have any immediate dilutive effect or change the rights of current holders of our non-voting common stock.

If the Non-Voting Common Stock Authorized Shares Amendment is adopted by stockholders, all other sections of the Amended and Restated Certificate of Incorporation would be maintained in their current form, subject to any amendment to increase the authorized numbers of shares of voting common stock, if approved. For information regarding the Voting Common Stock Authorized Shares Amendment, see “PROPOSAL NO. 4 APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF VOTING COMMON STOCK FROM 20,000,000 TO 100,000,000.”

Text of the Proposed Amendment

If our Amended and Restated Certificate of Incorporation were approved, Article IV, Section 1 of the Company’s Amended and Restated Certificate of Incorporation would read in its entirety as follows (assuming Proposal 4 is not approved):

“Section 1. This Corporation is authorized to issue two classes of capital stock which shall be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock that the Corporation is authorized to issue is 45,800,000, of which 35,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 20,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 15,800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,” each with the following rights, preferences, powers, privileges and restrictions, qualifications and limitations. Any reference to “Common Stock” issued by the Corporation in any contract, agreement or otherwise to which the Corporation is a party, whether before or after the date of filing of this Amended and Restated Certificate of

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Incorporation, shall refer to Voting Common Stock, unless specific reference is made to the Non-Voting Common Stock. Each share of Voting Common Stock shall entitle the holder thereof to one (1) vote on any matter submitted to a vote at a meeting of stockholders. Non-Voting Common Stock (i) shall be non-voting except as may be required by law and (ii) shall not entitle the holder thereof to vote on the election of directors at any time. The Common Stock shall have a par value of $0.0001 per share and the Preferred Stock shall have a par value of $0.0001 per share. Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the stock of the Corporation with the power to vote thereon irrespective of the provisions of Section 242(b)(2) of the Delaware General Corporation Law or any successor provision thereof, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.”

If our Amended and Restated Certificate of Incorporation were approved, Article IV, Section 1 of the Company’s Amended and Restated Certificate of Incorporation would read in its entirety as follows (assuming Proposal 4 is approved):

“Section 1. This Corporation is authorized to issue two classes of capital stock which shall be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock that the Corporation is authorized to issue is 125,800,000, of which 115,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 100,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 15,800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,” each with the following rights, preferences, powers, privileges and restrictions, qualifications and limitations. Any reference to “Common Stock” issued by the Corporation in any contract, agreement or otherwise to which the Corporation is a party, whether before or after the date of filing of this Amended and Restated Certificate of Incorporation, shall refer to Voting Common Stock, unless specific reference is made to the Non-Voting Common Stock. Each share of Voting Common Stock shall entitle the holder thereof to one (1) vote on any matter submitted to a vote at a meeting of stockholders. Non-Voting Common Stock (i) shall be non-voting except as may be required by law and (ii) shall not entitle the holder thereof to vote on the election of directors at any time. The Common Stock shall have a par value of $0.0001 per share and the Preferred Stock shall have a par value of $0.0001 per share. Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the stock of the Corporation with the power to vote thereon irrespective of the provisions of Section 242(b)(2) of the Delaware General Corporation Law or any successor provision thereof, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.”

The form of the amendment, if both Proposal 4 and Proposal 5 are approved, is attached to this Proxy Statement as Appendix B.

Timing of the Proposed Amendment

If the Non-Voting Common Stock Authorized Shares Amendment is approved by our stockholders, the amendment will become effective immediately upon the filing of a Certificate of Amendment to our Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware, which we expect to file on or before July 31, 2025, if approved. If the Non-Voting Common Stock Authorized Shares Amendment is not approved by our stockholders, the number of authorized shares of non-voting common stock will remain unchanged.

If adopted by our stockholders, the Voting Common Stock Authorized Shares Amendment would be effected at the same time as the Non-Voting Common Stock Authorized Shares Amendment. For additional

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information regarding the Voting Common Stock Authorized Shares Amendment, see “PROPOSAL NO. 4 APPROVAL TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF VOTING COMMON STOCK FROM 20,000,000 TO 100,000,000.”

Risks to Stockholders of Non-Approval

If our stockholders do not approve this proposal, the Board may be precluded from pursuing a wide range of potential corporate opportunities that might raise necessary cash or otherwise be in the best interests of the Company and the best interests of our stockholders. This could have a material adverse effect on our business and prospects.

Vote Required; Recommendation of the Board of Directors

The majority of outstanding shares of voting common stock will be required to approve the amendment of our Amended and Restated Certificate of Incorporation to increase the number of authorized shares of non-voting common stock from 800,000 to 15,800,000 shares. As this is a routine proposal, we do not expect any broker non-votes.

The Board believes that additional authorized shares of non-voting common stock would give the Company the necessary flexibility to issue shares for various corporate purposes, including, in particular, capital-raising or financing transactions, and enable the Company to take timely advantage of market conditions and opportunities. Other corporate purposes for which the additional authorized shares could be used include, but are not limited to, potential strategic transactions, including mergers, acquisitions, and other business combinations; future development of the Company’s pipeline of products; and other general corporate working capital needs. Further, the additional authorized shares of non-voting common stock would give the Company flexibility to exchange outstanding pre-funded warrants for shares of non-voting common stock. The Board currently has no specific designated purpose for the increase in authorized shares of non-voting common stock. As a general matter, the Board would be able to issue the additional authorized shares of non-voting common stock at its discretion from time to time, subject to and as limited by, rules or listing requirements of the Nasdaq or any other then applicable securities exchange, and without further action or approval of the Company’s stockholders. The discretion of the Board, however, would be subject to any other applicable rules and regulations in the case of any particular issuance or reservation for issuance that might require our stockholders to approve such transaction.

THE BOARD OF DIRECTORS RECOMMENDS THAT STOCKHOLDERS VOTE FOR THE RESOLUTION TO AMEND OUR AMENDED AND RESTATED CERTIFICATION OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED SHARES OF NON-VOTING COMMON STOCK FROM 800,000 TO 15,800,000.

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REPORT OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS

The material in this report is not “soliciting material,” is not deemed “filed” with the Securities and Exchange Commission (the “SEC”), and is not to be incorporated by reference into any filing of Aligos Therapeutics under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

The primary purpose of the Audit Committee is to oversee our financial reporting processes on behalf of our Board. The Audit Committee’s functions are more fully described in its charter, which is available on our website at https://investor.aligos.com/corporate-governance/governance-overview. Management has the primary responsibility for our financial statements and reporting processes, including our systems of internal controls. In fulfilling its oversight responsibilities, the Audit Committee reviewed and discussed with management Aligos’ audited financial statements as of and for the year ended December 31, 2024.

The Audit Committee has discussed with Ernst & Young LLP (“EY”), the Company’s independent registered public accounting firm, the matters required to be discussed by the applicable requirements of the Public Company Accounting Oversight Board (the “PCAOB”) and the SEC. In addition, the Audit Committee has received the written disclosures and the letter from EY required by PCAOB Ethics and Independence Rule 3526, “Communication with Audit Committees Concerning Independence”, and the Audit Committee has discussed with EY their independence from the Company and its management. Finally, the Audit Committee discussed with EY, with and without management present, the scope and results of EY’s audit of such financial statements.

Based on these reviews and discussions, the Audit Committee has recommended to our Board that such audited financial statements be included in our Annual Report on Form 10-K for the year ended December 31, 2024 for filing with the SEC.

Audit Committee

James Scopa, J.D., M.B.A., Chair

K. Peter Hirth, Ph.D.

Margarita Chavez, J.D.

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CORPORATE GOVERNANCE

Code of Business Conduct and Ethics

We have adopted a Code of Business Conduct and Ethics that applies to our officers, directors and employees, which is available on our website at https://investor.aligos.com/corporate-governance/governance-overview. The Code of Business Conduct and Ethics contains general guidelines for conducting the business of our company consistent with the highest standards of business ethics and is intended to qualify as a “code of ethics” within the meaning of Section 406 of the Sarbanes-Oxley Act of 2002 and Item 406 of Regulation S-K. In addition, we intend to promptly disclose (1) the nature of any substantive amendment to our Code of Business Conduct and Ethics that applies to our principal executive officer, principal financial officer, principal accounting officer or controller or persons performing similar functions and (2) the nature of any waiver, including an implicit waiver, from a provision of our code of ethics that is granted to one of these specified officers, the name of such person who is granted the waiver and the date of the waiver on our website in the future.

The reference to our web address in this proxy statement does not constitute incorporation by reference of the information contained at or available through our website.

Recovery of Erroneously Awarded Compensation Policy

Our Policy for Recovery of Erroneously Awarded Compensation (the “Clawback Policy”), is intended to comply with SEC and Nasdaq listing standards and maintain a culture of focused, diligent, and responsible management that discourages conduct detrimental to our growth. Accordingly, as set forth in the Clawback Policy, we are required to recover certain erroneously paid incentive-based compensation of our current and former executive officers in the event we are required to prepare a qualifying accounting restatement. The Clawback Policy provides that such erroneously paid incentive-based compensation may also be recovered from other compensation payable by us.

Corporate Governance Guidelines

We believe in sound corporate governance practices and have adopted formal Corporate Governance Guidelines to enhance our effectiveness. Our Board adopted these Corporate Governance Guidelines in order to ensure that it has the necessary practices in place to review and evaluate our business operations as needed and to make decisions that are independent of our management. The Corporate Governance Guidelines are also intended to align the interests of directors with those of our stockholders. The Corporate Governance Guidelines set forth the practices our Board follows with respect to Board and committee composition and selection, Board meetings, and succession planning. A copy of our Corporate Governance Guidelines is available on our website at http://investor.aligos.com/corporate-governance/governance-overview.

Independence of the Board of Directors

As required under the Nasdaq Capital Market (“Nasdaq”) rules and regulations, a majority of the members of a listed company’s board of directors must qualify as “independent,” as affirmatively determined by such board. The Board consults with the Company’s counsel to ensure that the Board’s determinations are consistent with all relevant securities and other laws and regulations regarding the definition of “independent,” including those set forth in pertinent Nasdaq listing standards, as in effect from time to time.

Consistent with these considerations, our Board has determined that all of our directors, other than Dr. Blatt, qualify as “independent” directors in accordance with the Nasdaq listing requirements. Dr. Blatt is not considered independent because he is an employee of Aligos Therapeutics. The Nasdaq independence definition includes a series of objective tests, such as that the director is not, and has not been for at least three years, one of our employees and that neither the director nor any of his or her family members has engaged in various types of

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business dealings with us. In addition, as required by Nasdaq rules, our Board has made a subjective determination as to each independent director that no relationship exists, which, in the opinion of our Board, would interfere with the exercise of independent judgment in carrying out the responsibilities of a director. In making these determinations, our Board reviewed and discussed information provided by the directors and us with regard to each director’s business and personal activities and relationships as they may relate to us and our management. There are no family relationships among any of our directors or executive officers.

As required under Nasdaq rules and regulations, our independent directors meet in regularly scheduled executive sessions at which only independent directors are present. Each of the Audit Committee, Compensation Committee and Nominating and Corporate Governance Committee of our Board are comprised entirely of directors determined by the Board to be independent within the meaning of Nasdaq and SEC rules and regulations applicable to the members of such committees.

Leadership Structure of the Board

Our Amended and Restated Bylaws and Corporate Governance Guidelines provide our Board with flexibility to combine or separate the positions of Chair of the Board and Chief Executive Officer and/or to implement a lead independent director in accordance with its determination that utilizing one or the other structure would be in the best interests of the Company. Dr. Blatt currently serves as our President and Chief Executive Officer and Chair of the Board and Carole Nuechterlein currently serves as the lead independent director of our Board. In her role as lead independent director, she presides over the executive sessions of the Board and acts as a liaison between management and the Board.

Our Board has concluded that our current leadership structure is appropriate at this time. Our Board believes that Dr. Blatt’s leadership of our business strategy and day-to-day operations enable him to provide effective leadership to the Board. The Board consists entirely of independent directors, other than Dr. Blatt, and continues to exercise a strong, independent oversight function, with independent committees and a lead independent director. However, our Board will continue to periodically review our leadership structure and may make such changes in the future as it deems appropriate.

Role of Board in Risk Oversight Process

Risk assessment and oversight are an integral part of our governance and management processes. Our Board encourages management to promote a culture that incorporates risk management into our corporate strategy and day-to-day business operations. Management discusses strategic and operational risks at regular management meetings, and conducts specific strategic planning and review sessions during the year that include a focused discussion and analysis of the risks facing us. Throughout the year, senior management reviews these risks with the Board at regular Board meetings as part of management presentations that focus on particular business functions, operations or strategies and presents the steps taken by management to mitigate or eliminate such risks.

Our Board does not have a standing risk management committee, but rather administers this oversight function directly through our Board as a whole, as well as through various standing committees of our Board that address risks inherent in their respective areas of oversight. While our Board is responsible for monitoring and assessing strategic risk exposure, our Audit Committee is responsible for overseeing our major financial risk exposures and the steps our management has taken to monitor and control these exposures. The Audit Committee also monitors compliance with legal and regulatory requirements and considers and approves or disapproves any related person transactions. Our Nominating and Corporate Governance Committee monitors the effectiveness of our Corporate Governance Guidelines and approves or disapproves any related person transactions. Our Compensation Committee assesses and monitors whether any of our compensation policies and programs has the potential to encourage excessive risk-taking.

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Board Committees

Our Board has the following standing committees: an Audit Committee, a Compensation Committee and a Nominating and Corporate Governance Committee. Our Board may establish other committees to facilitate the management of our business. The composition and functions of each committee are described below.

Audit Committee

Our Audit Committee oversees our corporate accounting and financial reporting process. Among other matters, the Audit Committee:

The current members of our Audit Committee are James Scopa, J.D., M.B.A., K. Peter Hirth, Ph.D., and Margarita Chavez, J.D. Mr. Scopa serves as the chair of the committee. All members of our Audit Committee meet the requirements for financial literacy under the applicable rules and regulations of the SEC and Nasdaq. Our Board has determined that Mr. Scopa is an audit committee financial expert as defined under the applicable rules of the SEC and has the requisite financial sophistication as defined under the applicable rules and regulations of Nasdaq. Under the rules of the SEC, members of the audit committee must also meet heightened independence standards. Our Board has determined that Mr. Scopa, Dr. Hirth, and Ms. Chavez are “independent” for audit committee purposes as that term is defined in the applicable rules of the SEC and Nasdaq.

The Audit Committee operates under a written charter that satisfies the applicable standards of the SEC and Nasdaq. A copy of the Audit Committee charter is available to security holders on our website at https://investor.aligos.com/corporate-governance/governance-overview.

Compensation Committee

Our Compensation Committee oversees policies relating to compensation and benefits of our officers and employees. Among other things, the Compensation Committee:

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The current members of our Compensation Committee are Carole Nuechterlein, J.D., K. Peter Hirth, Ph.D. and Bridget Martell, M.A., M.D. Ms. Nuechterlein serves as the chair of the committee. Each of the members of our Compensation Committee is independent under the applicable rules and regulations of Nasdaq, and is a “non-employee director” as defined in Rule 16b-3 promulgated under the Exchange Act.

The Compensation Committee operates under a written charter that satisfies the applicable standards of the SEC and Nasdaq rules. The Committee’s charter permits it to delegate its authority and responsibilities to individual members of the Compensation Committee or to a subcommittee of Compensation Committee members, to the extent consistent with our certificate of incorporation and bylaws. A copy of the Compensation Committee charter is available to security holders on our website at https://investor.aligos.com/corporate-governance/governance-overview.

The Compensation Committee has retained Radford, which is part of the Rewards Solutions practice at Aon plc (“Radford”), a national executive compensation consulting firm. Radford was engaged to conduct market research and analysis on our various executive positions, to assist the committee in developing appropriate incentive plans for our executives on an annual basis, to provide the compensation committee with advice and ongoing recommendations regarding material executive compensation decisions, and to review compensation proposals proposed by management. In compliance with the disclosure requirements of the SEC regarding the independence of compensation consultants, Radford addressed each of the six independence factors established by the SEC with the Compensation Committee. Each of the responses affirmed the independence of Radford on executive compensation matters. Based on this assessment, the Compensation Committee determined that the engagement of Radford does not raise any conflicts of interest or similar concerns.

Nominating and Corporate Governance Committee

The Nominating and Corporate Governance Committee is responsible for making recommendations to our Board regarding candidates for directorships and the size and composition of our Board. In addition, the Nominating and Corporate Governance Committee is responsible for overseeing our corporate governance policies and reporting and making recommendations to our Board concerning governance matters.

The current members of our Nominating and Corporate Governance Committee are Heather Preston, M.D. and Carole Nuechterlein, J.D. Dr. Preston serves as the chair of the committee. Each of the members of our Nominating and Corporate Governance Committee is an independent director under the applicable rules and regulations of Nasdaq relating to Nominating and Corporate Governance Committee independence.

The Nominating and Corporate Governance Committee operates under a written charter that satisfies the applicable standards of the SEC and Nasdaq rules. A copy of the Nominating and Corporate Governance Committee charter is available to security holders on the Company’s website at https://investor.aligos.com/corporate-governance/governance-overview.

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Our Nominating and Corporate Governance Committee is responsible for reviewing with the Board, on an annual basis, the appropriate characteristics, skills and experience required for the Board as a whole and its individual members. In evaluating the suitability of individual candidates (both new candidates and current members), the Nominating and Corporate Governance Committee, in recommending candidates for election, and the Board, in approving (and, in the case of vacancies, appointing) such candidates, may take into account many factors, including but not limited to the following:

Currently, our Board evaluates each individual in the context of the Board as a whole, with the objective of assembling a group that can best maximize the success of the business and represent stockholder interests through the exercise of sound judgment using its diversity of experience in these various areas.

Dr. Preston was appointed to the Board in August 2024 and, therefore, is standing for election as a director by stockholders for the first time. Dr. Preston was recommended to our Board and its Nominating and Corporate Governance Committee upon the recommendation of a third-party search firm. Ms. Chavez was appointed to the Board in August 2024 and, therefore, is standing for election as a director by stockholders for the first time. Ms. Chavez was recommended to our Board and its Nominating and Corporate Governance Committee upon the recommendation of a third-party search firm.

The Nominating and Corporate Governance Committee will consider director candidates recommended by stockholders. For a stockholder to make any nomination for election to the Board at an annual meeting, the stockholder must provide notice to the Company, which notice must be delivered to, or mailed and received at, the Company’s principal executive offices not less than 90 days and not more than 120 days prior to the one-year anniversary of the preceding year’s annual meeting; provided, that if the date of the annual meeting is more than 30 days before or more than 60 days after such anniversary date, the stockholder’s notice must be delivered, or mailed and received, not later than 90 days prior to the date of the annual meeting or, if later, 10 days after the date on which public disclosure of the date of such annual meeting was first made. Further updates and supplements to such notice may be required at the times, and in the forms, required under our bylaws. As set forth in our bylaws, submissions must include the name and address of the proposed nominee, indirect and direct interests in securities of the Company, information regarding the proposed nominee that is required to be disclosed in a proxy statement or other filings in a contested election pursuant to Section 14(a) under the Exchange Act, information regarding the proposed nominee’s indirect and direct material interests in any material contract or agreement between the nominating stockholder and any other participants in such solicitation, including, all information that would be required to be disclosure pursuant to Item 404 under Regulation S-K, and a completed and signed questionnaire, representation and agreement of the proposed nominee. Our bylaws also specify further requirements as to the form and content of a stockholder’s notice. We recommend that any stockholder wishing to make a nomination for director review a copy of our bylaws, as amended and restated to date, which is available, without charge, from the Secretary of the Company, at One Corporate Drive, 2nd Floor, South San Francisco, California 94080.

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Investor Letter Agreement

In February 2025, we completed a PIPE offering and entered into a securities purchase agreement pursuant to which we issued shares of our common stock, pre-funded warrants to purchase shares of our common stock, and common warrants to purchase shares of our common stock. In connection with this offering, we also entered into a letter agreement (the “Letter Agreement”) with Baker Brothers Life Sciences, L.P. and 667, L.P. (collectively, the “Lead Investor”), pursuant to which the Lead Investor has the right to nominate and recommend the election of one individual to the Board (the “First Designee”) for so long as the Lead Investor owns at least 5.5% of our outstanding voting common stock. The Lead Investor also has the right to nominate and recommend the election of a second individual to the Board (the “Second Designee”) for so long as the Lead Investor owns at least 19.9% of our outstanding voting common stock, if after the election of the Second Designee there are at least seven members of the Board. The foregoing director nomination rights terminate upon the earliest to occur of (1) such time as the Lead Investor beneficially owns less than 50% of the securities acquired in the 2025 PIPE offering, (2) the tenth anniversary of the closing of the offering and (3) the occurrence of a Liquidation Event (as defined in the Letter Agreement). A copy of the Letter Agreement is filed as Exhibit 10.20 to our Annual Report on Form 10-K for the year ended December 31, 2024.

Meetings of the Board of Directors, Board and Committee Member Attendance and Annual Meeting Attendance

Our Board met 6 times during 2024. The Audit Committee met 4 times. The Compensation Committee met 7 times. The Nominating and Corporate Governance Committee met 1 time and the Pricing Committee did not meet in 2024. During 2024, each Board member attended at least 75% of the meetings of the Board and of the committees of the Board on which he or she served, in each case, to the extent appointed as a Board member at the relevant time of each meeting. We encourage all of our directors and nominees for director to attend our annual meeting of stockholders; however, attendance is not mandatory. In 2024, all of our directors attended the annual meeting of stockholders.

Stockholder Communications with the Board of Directors

Should stockholders wish to communicate with the Board or any specified individual directors, such correspondence should be sent to the attention of the Secretary of the Company, One Corporate Drive, 2nd Floor, South San Francisco, California 94080. The Secretary of the Company will forward the communication to the Board members.

Compensation Committee Interlocks and Insider Participation

During 2024, our Compensation Committee consisted of Ms. Nuechterlein, Dr. Martell, and Dr. Hirth. None of the members of our compensation committee during 2024 nor any of the current members of our compensation committee has at any time been one of our officers or employees. None of our executive officers currently serves, or in the past fiscal year has served, as a member of the board of directors or compensation committee of any entity that has one or more executive officers on our board of directors or compensation committee.

Insider Trading Policy and Prohibition on Hedging, Pledging and Similar Transactions

All employees, officers, the non-employee members of our board of directors and certain consultants of the Company are subject to our Insider Trading Compliance Policy. The policy prohibits the covered individuals from purchasing or selling any of our securities while in possession of material nonpublic information and is designed to promote compliance with insider trading laws, rules and regulations, and applicable listing standards. A copy of our Insider Trading Compliance Policy is filed as Exhibit 19.1 to our Annual Report on Form 10-K for the year ended December 31, 2024.

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Our Insider Trading Compliance Policy also prohibits covered individuals, including our named executive officers, from (i) making short sales of our securities, (ii) engaging in transactions in puts, calls or other options or derivative instruments related to our equity securities, (iii) engaging in any hedging or similar transaction designed to hedge or offset any change in the market value of our securities and (iv) purchasing our securities on margin or pledging our securities as collateral.

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TRANSACTIONS WITH RELATED PERSONS

We describe below transactions and series of similar transactions, since January 1, 2023, to which we were a party or will be a party, in which the amount involved exceeded or will exceed the lesser of $120,000 or one percent of the average of our total assets at year-end for the last two completed fiscal years with any of our directors, executive officers or holders of more than 5% of our common stock, or an affiliate or immediate family member thereof, had or will have a direct or indirect material interest.

2023 Private Placement

In October 2023, we completed a private investment in public equity (“PIPE”) offering and entered into a securities purchase agreement pursuant to which we agreed to issue 1,257,168 shares of our common stock, pre-funded warrants to purchase an aggregate of 3,242,186 shares of our common stock (the “2023 Pre-Funded Warrants”), and common warrants to purchase an aggregate of 2,249,675 shares of our common stock (the “2023 Common Warrants”, and together with the 2023 Pre-Funded Warrants, the “2023 Warrants”). Each 2023 Warrant is exercisable for one share of common stock. The Company received gross proceeds of approximately $92.1 million. The table below sets forth the number of shares of common stock and 2023 Warrants sold to our directors, executive officers or owners of more than 5% of our capital stock, or an affiliate or immediate family member thereof. For a summary of the beneficial ownership of shares of our common stock held by our directors, executive officers and owners of more than 5% of our capital stock, see the section entitled “Security Ownership of Certain Beneficial Owners and Management”.

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2025 Private Placement

In February 2025, we completed a PIPE offering and entered into a securities purchase agreement pursuant to which we agreed to issue 2,103,307 shares of our common stock, pre-funded warrants to purchase an aggregate of 1,922,511 shares of our common stock (the “2025 Pre-Funded Warrants”), and common warrants to purchase an aggregate of 2,012,909 shares of our common stock (the “2025 Common Warrants”, and together with the 2025 Pre-Funded Warrants, the “2025 Warrants”). Each 2025 Warrant is exercisable for one share of common stock. The Company received gross proceeds of approximately $105 million. The table below sets forth the number of shares of common stock and 2025 Warrants sold to our directors, executive officers or owners of more than 5% of our capital stock, or an affiliate or immediate family member thereof. For a summary of the beneficial ownership of shares of our common stock held by our directors, executive officers and owners of more than 5% of our capital stock, see the section entitled “Security Ownership of Certain Beneficial Owners and Management”.

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Director and Executive Officer Compensation

See “Executive Compensation” and “Director Compensation” for information regarding compensation of directors and executive officers.

Employment Agreements

We have entered into employment agreements with our executive officers. For more information regarding these agreements, see “Executive Compensation-Narrative to 2024 Summary Compensation Table and Outstanding Equity Awards at 2024 Fiscal Year End.”

Indemnification Agreements and Directors’ and Officers’ Liability Insurance

We have entered into indemnification agreements with each of our directors and executive officers. These agreements, among other things, require us to indemnify each director and executive officer to the fullest extent permitted by Delaware law, including indemnification of expenses such as attorneys’ fees, judgments, penalties, fines and settlement amounts incurred by the director or executive officer in any action or proceeding, including any action or proceeding by or in right of us, arising out of the person’s services as a director or executive officer. We have obtained an insurance policy that insures our directors and officers against certain liabilities, including liabilities arising under applicable securities laws.

Policies and Procedures for Related Party Transactions

Our Board has adopted a written related person transaction policy setting forth the policies and procedures for the review and approval or ratification of related person transactions. This policy covers, with certain exceptions set forth in Item 404 of Regulation S-K, any transaction, arrangement or relationship, or any series of similar transactions, arrangements or relationships in which we were or are to be a participant, where the amount involved exceeds $120,000 and a related person had or will have a direct or indirect material interest, including, without limitation, purchases of goods or services by or from the related person or entities in which the related person has a material interest, indebtedness, guarantees of indebtedness and employment by us of a related person. In reviewing and approving any such transactions, our Audit Committee is tasked to consider all relevant facts and circumstances, including, but not limited to, whether the transaction is on terms comparable to those that could be obtained in an arm’s length transaction with an unrelated third party and the extent of the related person’s interest in the transaction.

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DIRECTOR COMPENSATION

In connection with the initial public offering of our common stock, we implemented a compensation program for our non-employee directors that we amended in October 2024 (the “Director Compensation Program”). Pursuant to the Director Compensation Program, during 2024, our non-employee directors were eligible to receive cash compensation as follows:

Under the Director Compensation Program, each non-employee director will automatically be granted an option to purchase 4,800 shares of our common stock upon such director’s initial appointment or election to our Board (the “Initial Grant”), and each non-employee director who has been serving on the board for at least four months will automatically be granted an option to purchase 2,400 shares of our common stock on the date of each annual stockholder’s meeting (the “Annual Grant”). The Initial Grant will vest in substantially equal monthly installments for three years from the date of grant, subject to continued service through each applicable vesting date. The Annual Grant will vest on the earlier of the first anniversary of the date of grant or the date of the next annual stockholder’s meeting, subject to continued service through the vesting date.

We also provide reimbursement to our non-employee directors for their reasonable expenses incurred in attending meetings of our board of directors and committees of our board of directors.

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Director Compensation Table

The following table sets forth information concerning the compensation earned by our non-employee directors during the year ended December 31, 2024. Dr. Blatt, who serves as our President and Chief Executive Officer did not receive any additional compensation for his service on our board of directors. His compensation as an employee is set forth below under “Executive Compensation.”

The following table sets forth the option awards held by our non-employee directors as of December 31, 2024.

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EXECUTIVE OFFICERS

The following is biographical information for our executive officers, including their ages as of April 28, 2025.

The biographical information of Dr. Blatt is included above under “Proposal No. 1 – Election of Directors.”

Lesley Ann Calhoun has served as our Executive Vice President, Chief Operating Officer since January 2025 and Chief Financial Officer since June 2020. Ms. Calhoun has served as a Director of Tango Therapeutics, Inc., a publicly traded biotechnology company since March 2021, and also serves as the Chair of the Audit Committee and a member of the Nominating and Corporate Governance Committee. From August 2016 to June 2020, Ms. Calhoun served in various roles at Global Blood Therapeutics, Inc., a drug discovery, development and commercial-stage biopharmaceutical company, including most recently as Senior Vice President, Finance & Administration and Chief Accounting Officer. Prior to these roles, Ms. Calhoun served as Vice President of Finance at Hyperion Therapeutics, Inc., a commercial-stage biopharmaceutical company, from January 2013 to September 2015, continuing in her role after it was acquired by Horizon Pharma plc, a pharmaceutical company, in May 2015. Ms. Calhoun also previously served as Senior Director of Finance, Corporate Controller at Innoviva, Inc. (formerly Theravance, Inc.), a biopharmaceutical company, from August 2005 to January 2013. Earlier in her career, Ms. Calhoun was a member of the audit practice of Deloitte & Touche LLP from 1989 to 2001. Ms. Calhoun received her B.S. in Business Administration with a concentration in Accounting from San Francisco State University, College of Business and is a Certified Public Accountant (inactive).

Julian A. Symons, D.Phil., has served as our Executive Vice President, Chief Scientific Officer since May 2018. Prior to joining the Company, from January 2010 to March 2015, Dr. Symons served in various roles at Alios BioPharma, Inc., which was acquired by Janssen Pharmaceutical Companies of Johnson & Johnson, a pharmaceutical company, in November 2014, including Senior Director, Product Development from January 2013 to March 2015, and Vice President, Disease Area Research & Development Leader, Respiratory Infections from March 2015 to April 2018. Prior to his time with Alios BioPharma, Inc., Dr. Symons held positions with the Pharmaceutical Division of F. Hoffman-La Roche Ltd. and the Departments of Medicine at the University of Edinburgh, University of Sheffield and the Sir William Dunn School of Pathology, University of Oxford. Dr. Symons received a B.Sc. (Hons) I in Biochemistry and Physiology from the University of Central Lancashire, UK and a D.Phil. in Immunology and Autoimmunity from the University of York, UK.

Hardean E. Achneck, M.D., has served as our Chief Medical Officer since September 2024. Prior to joining the Company, Dr. Achneck served as the Senior Vice President and Head of Clinical Development at Pliant Therapeutics, Inc., a publicly traded biotechnology company. From 2022 to 2024, he oversaw all clinical programs, including those in hepatic, pulmonary, immuno-oncologic, and neuromuscular diseases. Before joining Pliant, from 2019 to 2022, Dr. Achneck was the Vice President of Clinical Development and Clinical Research at Dicerna Pharmaceuticals, Inc., which was acquired by Novo Nordisk A/S, a global healthcare company, in November 2021. Following its acquisition by Novo Nordisk in 2021, he continued his role at the Novo Nordisk Dicerna Transformational Research Unit. Prior to his tenure at Dicerna, from 2016 to 2019, Dr. Achneck served as Director of Medical Affairs and Clinical Development at Haemonetics Corporation, a global healthcare company. Before this, he served as Vice President and Chief Medical Officer at Hemostemix Inc. Before his industry roles, from 2010 to 2014, Dr. Achneck was an Assistant Professor of Surgery and in Pathology at Duke University School of Medicine, with a co-appointment as Assistant Professor of Cardiovascular & Metabolic Disorders at Duke-National University of Singapore. From 2005 to 2010, Dr. Achneck trained in General Surgery at Duke. Dr. Achneck holds an M.D. from Yale University School of Medicine and a B.A. in Molecular Biophysics & Biochemistry from Yale University.

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EXECUTIVE COMPENSATION

The following is a discussion and analysis of compensation arrangements of our named executive officers (“NEOs”). As an “emerging growth company” as defined in the JOBS Act, we are not required to include a Compensation Discussion and Analysis section and have elected to comply with the scaled disclosure requirements applicable to emerging growth companies.

We seek to ensure that the total compensation paid to our executive officers is reasonable and competitive. Compensation of our executives is structured around the achievement of individual performance and near-term corporate targets as well as long-term business objectives.

Our NEOs for fiscal year 2024 were as follows:

2024 Summary Compensation Table

The following table sets forth total compensation paid to our named executive officers for the fiscal year ended on December 31, 2024.

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Outstanding Equity Awards at 2024 Fiscal Year End

The following table lists all outstanding equity awards held by our NEOs as of December 31, 2024.

Narrative to 2024 Summary Compensation Table and Outstanding Equity Awards at 2024 Fiscal Year End

Executive Compensation Arrangements

Amended and Restated Employment Agreement

Effective as of February 10, 2021, we entered into an amended and restated employment agreement with Dr. Blatt that supersedes his prior employment agreement. The amended and restated employment agreement provides for an initial annual base salary of $548,654 for Dr. Blatt. The employment agreement entitles Dr. Blatt to an annual performance bonus targeted at 55% of his annual base salary.

In the event Dr. Blatt resigns for good reason or we terminate Dr. Blatt’s employment without cause (in each case as defined in the amended and restated employment agreement), he is entitled to (i) an amount equal to the sum of (x) his annual base salary (as of the date of termination) and (y) the bonus earned for the calendar year

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preceding termination of employment, payable in equal installments, (ii) 12 months of COBRA reimbursement, (iii) vesting acceleration for any equity award held by him that would have vested within 12 months following termination of employment (except for any performance-vesting awards, which will be governed by the terms of the applicable award agreement) and (iv) each option held by him that is vested as of the date of termination will remain exercisable until the 12-month anniversary of his termination of employment.

In the event Dr. Blatt resigns for good reason or we terminate Dr. Blatt’s employment without cause, in each case, within the twelve month period commencing a “change in control” (as defined therein) he is entitled to (i) an amount equal to the 1.5 times the sum of (x) his annual base salary (as of the date of termination) and (y) target annual bonus, payable in a lump sum, (ii) 18 months of COBRA reimbursement, (iii) vesting acceleration for any equity award and each performance-vesting awards will be deemed earned at the greater of target or actual achievement measured as of date of termination of employment (to the extent then measurable) and (iv) each option held by him that is vested as of the date of termination will remain exercisable until the 12-month anniversary of his termination of employment.

Dr. Blatt must timely deliver an effective release of claims to us and comply with his restrictive covenant agreement in order to be eligible for the foregoing severance benefits.

For purposes of the amended and restated employment agreement, “cause” means (i) material breach of any of the executive’s representations or obligations contained in the employment agreement, including a willful failure or refusal to perform the job duties and responsibilities assigned to him by us, which if such material breach is reasonably susceptible of cure is not cured after thirty days have elapsed following the date on which we give written notice of such breach; (ii) conviction, or plea of guilty or nolo contendere, of any felony or any crime involving moral turpitude; (iii) participation in a fraud, act of dishonesty or misappropriation or similar conduct against us; (iv) conduct that is materially injurious to us or our affiliates or subsidiaries, monetarily or otherwise; (v) improper use or disclosure of our confidential or proprietary information; or (vi) obtaining a direct or indirect personal benefit from the transfer or use of our trade secrets or intellectual property other than on our behalf.

For purposes of the amended and restated employment agreement, “good reason” means, subject to notice and cure, the continuance of any of the following events without the executive’s written consent: (i) any material breach of the terms of the employment agreement by us; (ii) any material restriction or diminution in the executive’s responsibilities; (iii) introduction of a requirement that Dr. Blatt report to an officer or employee instead of directly to the board; (iv) any change in the location of the executive’s principal place of employment that increases the executive’s one-way commute in excess of fifty miles from the executive’s principal place of employment prior to such change; and (v) any material failure by us to pay the executive’s annual base salary, earned bonuses, or benefits that the executive is entitled to receive under the employment agreement, or any material reduction by us of the executive’s annual base salary under the employment agreement, provided, however, that if we institute a company-wide reduction in salaries, bonuses and benefits for other executive management team members, such reduction will not be deemed material.

For purposes of the amended and restated employment agreements, “change in control” is defined as such term is defined in the 2020 Incentive Award Plan; provided, that such transaction must also constitute a “change in control event” within the meaning of Treasury Regulation Section 1.409A-3(i)(5).

Executive Change in Control Severance Agreement

We entered into a change in control severance agreement with each of Dr. Symons and Ms. Calhoun. The change in control severance agreements provide that, in the event the NEO’s employment is terminated by us other than for “cause” (as defined therein) or the NEO resigns for “good reason” (as defined therein), the severance will consist of (i) 9 months of base salary payable in equal installments, (ii) 9 months of COBRA reimbursement, (iii) vesting acceleration for any equity award held by the NEO that would have vested within 9

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months following termination of employment (except for any performance-vesting awards, which will be governed by the terms of the applicable award agreement) and (iv) each option held by the NEO that is vested as of the date of termination will remain exercisable until the 12-month anniversary of the NEO’s termination of employment. The change in control severance agreement also provides that, in the event the NEO’s employment is terminated by us other than for cause or the NEO resigns for good reason, and that termination or resignation occurs within the period commencing 3 months prior to the consummation of a change in control and ending 12 months after a change in control, the severance will consist of (i) one times the sum of (x) the NEO’s base salary and (y) target annual bonus assuming achievement of performance goals at 100%, (ii) 12 months of COBRA reimbursement, (iii) vesting acceleration for any equity award and each performance-vesting awards will be deemed earned at the greater of target or actual achievement measured as of date of termination of employment (to the extent then measurable) and (iv) each option held by the NEO that is vested as of the date of termination will remain exercisable until the 12-month anniversary of the NEO’s termination of employment. The NEO must timely deliver an effective release of claims to us and comply with the NEOs restrictive covenant agreement in order to be eligible for the foregoing severance benefits.

For purposes of each NEO’s change in control severance agreement, “cause” is defined as (i) a material breach of any representations or obligations contained in any offer letter or employment agreement between the NEO and us, including the NEO’s willful failure or refusal to perform the job duties and responsibilities assigned to the NEO by us, which if such material breach is reasonably susceptible of cure is not cured after thirty (30) days have elapsed following the date on which we give the NEO written notice of such breach; (ii) conviction of, or plea of guilty or nolo contendere to, any felony or any crime involving moral turpitude; (iii) participation in a fraud, act of dishonesty or misappropriation or similar conduct against us; (iv) conduct that is materially injurious to us or our affiliates or subsidiaries, monetarily or otherwise; (v) improper use or disclosure of our confidential or proprietary information; or (vi) obtaining a direct or indirect personal benefit from the transfer or use of our trade secrets or intellectual property other than on our behalf.

For purposes of each NEO’s change in control severance agreement, “good reason” means, subject to notice and cure, the occurrence of any of the following events without the NEO’s consent: (i ) any material breach of the terms of the change in control severance agreement by us; (ii) any material restriction or diminution in the NEO’s duties or responsibilities; (iii) any change in the location of the NEO’s principal place of employment that increases the NEO’s one-way commute in excess of fifty (50) miles from the NEO’s principal place of employment prior to such change; (iv) any material failure by us to pay the NEO’s base salary, bonuses that the NEO has earned, or benefits that the NEO is entitled to receive under the NEO’s offer letter, or any material reduction by us of the NEO’s base salary under the NEO’s offer letter, provided, however, that if we institute a company-wide reduction in salaries, bonuses and benefits for other executive management team members, such reduction shall not be deemed “material” for this definition.

For purposes of each NEO’s change in control severance agreement “change in control” is defined as such term is defined in the 2020 Incentive Award Plan; provided, that such transaction must also constitute a “change in control event” within the meaning of Treasury Regulation Section 1.409A-3(i)(5).

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Equity Compensation Plan Information

The following table provides certain information as of December 31, 2024, with respect to all of our equity compensation plans in effect on that date:

Material Features of the 2024 Employment Commencement Incentive Plan

In September 2024, our board of directors adopted our Inducement Plan pursuant to Nasdaq Listing Rule 5653(c)(4). The principal purpose of the Inducement Plan is to promote the success and enhance the value of the company by inducing new employees to commence employment with us, and by aligning the individual interests of new employees with the interests of our stockholders. Awards granted under the Inducement Plan are intended

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to constitute employment inducement awards under Nasdaq Listing Rule 5635(c)(4) and therefore, the Inducement Plan is intended to be exempt from the Nasdaq Listing Rules regarding shareholder approval of equity compensation plans. A total of 600,000 shares of our common stock were reserved for issuance under the Inducement Plan. The Inducement Plan provides for the grant of non-qualified stock options, restricted stock units, restricted stock awards, stock appreciation rights, and other stock-based and cash-based awards. These awards may be granted to individuals who are then new employees, or are commencing employment with us or one of our subsidiaries following a bona fide period of non-employment with us, and for whom such awards are granted as a material inducement to commencing employment with us or one of our subsidiaries.

The Inducement Plan is administered by the compensation committee and the board of directors. In the event of a change in control in which the successor corporation refuses to assume or substitute any outstanding award under the Inducement Plan, the vesting of such award will accelerate in full. The board of directors may terminate, amend, or modify the Inducement Plan at any time, provided that no termination or amendment may impair any rights under any outstanding award under the Inducement Plan without the consent of the holder.

We have filed a registration statement on Form S-8 with the SEC covering the shares of common stock that may be issued under the Inducement Plan.

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SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table presents information as to the beneficial ownership of our common stock as of March 6, 2025 for:

Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. Unless otherwise indicated below, to our knowledge, the persons and entities named in the table have sole voting and sole investment power with respect to all shares beneficially owned, subject to community property laws where applicable. Shares of our common stock subject to options that are currently exercisable or exercisable within 60 days of March 6, 2025 are deemed to be outstanding and to be beneficially owned by the person holding the stock options for the purpose of computing the percentage ownership of that person, but are not treated as outstanding for the purpose of computing the percentage ownership of any other person.

Percentage ownership of our common stock in the table is based on 5,314,311 shares of our voting common stock issued and outstanding on March 6, 2025. The table below does not reflect ownership of outstanding shares of our non-voting common stock. This table is based upon information supplied by officers, directors and principal stockholders and Schedules 13D and Schedules 13G, if any, filed with the SEC. Unless otherwise indicated, the address of each of the individuals and entities named below is c/o Aligos Therapeutics, Inc., One Corporate Drive, 2nd Floor, South San Francisco, California 94080.

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ADDITIONAL INFORMATION

Householding of Proxy Materials

The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy statements and annual reports with respect to two or more stockholders sharing the same address by delivering a single proxy statement addressed to those stockholders. This process, which is commonly referred to as “householding,” potentially means extra convenience for stockholders and cost savings for companies.

Brokers with account holders who are Aligos Therapeutics stockholders may be “householding” our proxy materials. A single proxy statement may be delivered to multiple stockholders sharing an address unless contrary instructions have been received from the affected stockholders. Once you have received notice from your broker that it will be “householding” communications to your address, “householding” will continue until you are notified otherwise or until you notify your broker or the Company that you no longer wish to participate in “householding.”

If, at any time, you no longer wish to participate in “householding” and would prefer to receive a separate proxy statement and annual report, you may (1) notify your broker, (2) direct your written request to: One Corporate Drive, 2nd Floor, South San Francisco, California 94080 Stockholders who currently receive multiple copies of this Proxy Statement at their address and would like to request “householding” of their communications should contact their broker, or (3) request from the Company at (800) 466-6059. In addition, the Company will promptly deliver, upon written or oral request to the address or telephone number above, a separate copy of the Form 10-K, Proxy Statement, Proxy Card or Notice of Internet Availability of Proxy Materials to a stockholder at a shared address to which a single copy of the documents was delivered.

Other Matters

As of the date of this Proxy Statement, the Board does not intend to present any matters other than those described herein at the Annual Meeting and is unaware of any matters to be presented by other parties. If other matters are properly brought before the Annual Meeting for action by the stockholders, proxies will be voted in accordance with the recommendation of the Board or, in the absence of such a recommendation, in the discretion of the proxy holder.

We have filed our Annual Report on Form 10-K for the year ended December 31, 2024 with the SEC. It is available free of charge at the SEC’s web site at www.sec.gov. Upon written request by a stockholder of Aligos Therapeutics, we will mail without charge a copy of our Annual Report on Form 10-K, including the financial statements and financial statement schedules, but excluding exhibits to the Annual Report on Form 10-K. Exhibits to the Annual Report on Form 10-K are available upon payment of a reasonable fee, which is limited to our expenses in furnishing the requested exhibit. All requests should be directed to the Secretary of the Company, One Corporate Drive, 2nd Floor, South San Francisco, California 94080.

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APPENDIX A

A-1

AMENDMENT TO

ALIGOS THERAPEUTICS, INC.

2020 INCENTIVE AWARD PLAN

THIS AMENDMENT (this “Amendment”) to the Aligos Therapeutics, Inc. 2020 Incentive Award Plan (the “Plan”) is made and adopted by the Board of Directors (the “Board”) of Aligos Therapeutics, Inc., a Delaware corporation (the “Company”), subject to, and effective upon, the approval of the Company’s stockholders (the date of such approval, the “Effective Date”). All capitalized terms used but not otherwise defined herein shall have the respective meanings ascribed to such terms in the Plan.

RECITALS

WHEREAS, pursuant to Section 11.4 of the Plan, the Board has the authority to amend the Plan from time to time, including to increase the maximum aggregate number of Shares available for issuance thereunder, subject to approval of the Company’s stockholders; and

WHEREAS, the Board believes it is in the best interests of the Company and its stockholders to amend the Plan as set forth herein.

NOW, THEREFORE, BE IT RESOLVED, that the Plan is hereby amended as follows, subject to approval of the increase in reserved Shares provided by this Amendment by the Company’s stockholders:

AMENDMENT

“; and (iv) 1,000,000 Shares.”

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APPENDIX B

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CERTIFICATE OF AMENDMENT TO THE

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

OF

ALIGOS THERAPEUTICS, INC.

Aligos Therapeutics, Inc. (the “Corporation”), a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the State of Delaware, hereby certifies as follows:

ONE: The name of this corporation is Aligos Therapeutics, Inc. The Corporation was originally incorporated under the name Aligos, Inc., and the original Certificate of Incorporation of the Corporation was filed with the Secretary of State of the State of Delaware on February 5, 2018. The Corporation filed an Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware on October 19, 2020, as amended on June 27, 2024 and August 14, 2024.

TWO: This Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Corporation herein was duly adopted by this Corporation’s Board of Directors in accordance with the applicable provisions of Section 242 of the General Corporation Law of the State of Delaware. The Corporation’s Board of Directors duly adopted resolutions setting forth and declaring advisable this Certificate of Amendment and directed that such amendment be considered by the stockholders of the Corporation. An annual meeting of stockholders was duly called upon notice in accordance with Section 222 of the General Corporation Law of the State of Delaware and held on June 25, 2025, at which meeting the necessary number of shares were voted in favor of such amendment. The stockholders of the Corporation duly adopted this Certificate of Amendment. The proposed amendment is set forth as follows:

Section 1 of Article IV of Exhibit A to the Amended and Restated Certificate of Incorporation of the Corporation, as amended to date, be and hereby is further amended by replacing the first paragraph of Section 1 of Article IV with the following:

“Section 1. This Corporation is authorized to issue two classes of capital stock which shall be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock that the Corporation is authorized to issue is [125,800,000], of which [115,800,000] shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. [100,000,000] shares of the Common Stock are hereby designated “Voting Common Stock” and [15,800,000] shares of the Common Stock are hereby designated “Non-Voting Common Stock,”¹ each with the following rights, preferences, powers, privileges and restrictions, qualifications and limitations. Any reference to “Common Stock” issued by the Corporation in any contract, agreement or otherwise to which the Corporation is a party, whether before or after the date of filing of this Amended and Restated

If only Proposal 4 is approved, the amendment’s bracketed provision will be set forth as follows: “The total number of shares of stock that the Corporation is authorized to issue is 110,800,000, of which 100,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 100,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,”…”

If only Proposal 5 is approved, the amendment’s bracketed provision will be set forth as follows: “The total number of shares of stock that the Corporation is authorized to issue is 45,800,000, of which 35,800,000 shares shall be Common Stock and 10,000,000 shares shall be Preferred Stock. 20,000,000 shares of the Common Stock are hereby designated “Voting Common Stock” and 15,800,000 shares of the Common Stock are hereby designated “Non-Voting Common Stock,”…”

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Certificate of Incorporation, shall refer to Voting Common Stock, unless specific reference is made to the Non-Voting Common Stock. Each share of Voting Common Stock shall entitle the holder thereof to one (1) vote on any matter submitted to a vote at a meeting of stockholders. Non-Voting Common Stock (i) shall be non-voting except as may be required by law and (ii) shall not entitle the holder thereof to vote on the election of directors at any time. The Common Stock shall have a par value of $0.0001 per share and the Preferred Stock shall have a par value of $0.0001 per share. Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the stock of the Corporation with the power to vote thereon irrespective of the provisions of Section 242(b)(2) of the Delaware General Corporation Law or any successor provision thereof, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.”

THREE: This Certificate of Amendment shall become effective immediately upon its filing with and acceptance by the Secretary of State of the State of Delaware.

FOUR: All other provisions of the Amended and Restated Certificate of Incorporation shall remain in full force and effect.

***

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C/O TABULATOR, P.O. BOX 8016, CARY, NC 27512-9903 Your vote matters! Have your ballot ready and please use one of the methods below for easy voting: Your control number Have the 12 digit control number located in the box above available when you access the website and follow the instructions. Aligos Therapeutics, Inc. Annual Meeting of Stockholders For stockholders of record as of April 28, 2025 Wednesday, June 25, 2025 8:00 AM, Pacific Time Annual Meeting to be held live via the internet - Please visit www.proxydocs.com/ALGS for more details. YOUR VOTE IS IMPORTANT! PLEASE VOTE BY: 8:00 AM, Pacific Time, June 25, 2025. This proxy is being solicited on behalf of the Board of Directors Internet: • www.proxypush.com/ALGS • Cast your vote online • Have your Proxy Card ready Follow the simple instructions to record your vote Phone: 1-866-697-7120 • • Use any touch-tone telephone • Have your Proxy Card ready Follow the simple recorded instructions Mail: • • Mark, sign and date your Proxy Card Fold and return your Proxy Card in the postage-paid envelope provided Virtual: You must register to attend the meeting online and/or participate at www.proxydocs.com/ALGS no later than June 24, 2025 at 5:00 p.m. Eastern Time. The undersigned hereby appoints Lawrence M. Blatt, Ph.D., M.B.A. and Lesley Ann Calhoun (the “Named Proxies”), and each or either of them, as the true and lawful attorneys of the undersigned, with full power of substitution and revocation, and authorizes them, and each of them, to vote all the shares of capital stock of Aligos Therapeutics, Inc. which the undersigned is entitled to vote at said meeting and any adjournment thereof upon the matters specified and upon such other matters as may be properly brought before the meeting or any adjournment thereof, conferring authority upon such true and lawful attorneys to vote in their discretion on such other matters as may properly come before the meeting and revoking any proxy heretofore given. THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS DIRECTED OR, IF NO DIRECTION IS GIVEN, SHARES WILL BE VOTED IDENTICAL TO THE BOARD OF DIRECTORS RECOMMENDATION. This proxy, when properly executed, will be voted in the manner directed herein. In their discretion, the Named Proxies are authorized to vote upon such other matters that may properly come before the meeting or any adjournment or postponement thereof. You are encouraged to specify your choice by marking the appropriate box (SEE REVERSE SIDE) but you need not mark any box if you wish to vote in accordance with the Board of Directors’ recommendation. The Named Proxies cannot vote your shares unless you sign (on the reverse side) and return this card. PLEASE BE SURE TO SIGN AND DATE THIS PROXY CARD AND MARK ON THE REVERSE SIDE Copyright © 2025 BetaNXT, Inc. or its affiliates. All Rights Reserved

Aligos Therapeutics, Inc. Annual Meeting of Stockholders Please make your marks like this: THE BOARD OF DIRECTORS RECOMMENDS A VOTE: FOR PROPOSALS 1, 2, 3, 4 AND 5 BOARD OF DIRECTORS PROPOSAL YOUR VOTE RECOMMENDS 1. Election of three Class II directors to hold office until our 2028 annual meeting of stockholders; FOR WITHHOLD 1.01 K. Peter Hirth, Ph.D. FOR 1.02 Heather Preston, M.D. FOR 1.03 Margarita Chavez, J.D. FOR FOR AGAINST ABSTAIN 2. The ratification of the appointment, by the Audit Committee of our Board, of Ernst & Young LLP, FOR as our independent registered public accounting firm for the year ending December 31, 2025; 3. The amendment of our 2020 Plan to increase the number of shares reserved and scheduled to FOR be reserved under the 2020 Plan by 1,000,000 shares; 4. The amendment of our Amended and Restated Certificate of Incorporation to increase the FOR number of authorized shares of voting common stock from 20,000,000 shares to 100,000,000 shares; and 5. The amendment of our Amended and Restated Certificate of Incorporation to increase the FOR number of authorized shares of non-voting common stock from 800,000 shares to 15,800,000 shares. NOTE: In addition, you are entitled to vote on any other matters that are properly brought before the Annual Meeting. You must register to attend the meeting online and/or participate at www.proxydocs.com/ALGS no later than June 24, 2025 at 5:00 p.m. Eastern Time. Authorized Signatures - Must be completed for your instructions to be executed. Please sign exactly as your name(s) appears on your account. If held in joint tenancy, all persons should sign. Trustees, administrators, etc., should include title and authority. Corporations should provide full name of corporation and title of authorized officer signing the Proxy/Vote Form. Signature (and Title if applicable) Date Signature (if held jointly) Date