SEC Form PRE 14A filed by Clene Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

CLENE INC.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

April 8, 2025

Dear Stockholder:

You are cordially invited to attend Clene Inc.’s 2025 Annual Meeting of Stockholders on Thursday, May 22, 2025 at 11:00 a.m. Eastern Daylight Time at our corporate offices located at 6550 South Millrock Drive, Suite G50, Salt Lake City, Utah 84121. You will be able to vote online prior to the Annual Meeting by visiting www.proxyvote.com, as well as in person at the Annual Meeting. The Corporate Secretary’s Notice of Annual Meeting of Stockholders and the Proxy Statement appear on the following pages and describe the matters to be acted upon at the Annual Meeting.

We hope that you can join us. However, whether or not you plan to attend, please vote your shares as soon as possible so that your vote will be counted.

Clene Inc.

6550 South Millrock Drive, Suite G50

Salt Lake City, Utah 84121

April 8, 2025

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

AND PROXY STATEMENT

To the stockholders of Clene Inc:

Notice is hereby given that the 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of Clene Inc., a Delaware corporation (the “Company,” “Clene,” “we,” “us,” or “our”), will be held on Thursday, May 22, 2025 at 11:00 a.m. Eastern Daylight Time at our corporate offices located at 6550 South Millrock Drive, Suite G50, Salt Lake City, Utah 84121. The Annual Meeting will be conducted for the following purposes:

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

The Board has selected Tuesday, March 25, 2025, as the record date (the “Record Date”) for determining stockholders entitled to vote at the Annual Meeting. Accordingly, only stockholders of record at the close of business on the Record Date may vote at the Annual Meeting and any adjournment or postponement thereof. A list of stockholders as of that date will be available for inspection during ordinary business hours at our principal executive offices at 6550 South Millrock Drive, Suite G50, Salt Lake City, Utah 84121 for ten days before the Annual Meeting. If you would like to view the list, please contact us to schedule an appointment by emailing [email protected]. In addition, the list will be available for inspection by stockholders during the Annual Meeting.

Except for those stockholders that have already requested printed copies of our proxy materials, the proxy materials for the Annual Meeting will be furnished to you online. We anticipate that on or about April 8, 2025, we will mail or email our stockholders of record a Notice Regarding the Availability of Proxy Materials (the “Notice of Internet Availability”) containing instructions on how to access our 2025 Proxy Statement and 2024 Annual Report on Form 10-K (the “Annual Report”) and how to vote. If you prefer to receive paper copies of our proxy materials, please follow the instructions included in the Notice of Internet Availability to request a printed copy of the proxy materials.

We believe that mailing or emailing the Notice of Internet Availability and posting the proxy materials online allows us to provide you with the information you need more quickly while lowering the costs of delivery and reducing the environmental impact of the Annual Meeting.

All stockholders of record are cordially invited to attend the Annual Meeting. You will be able to vote your shares electronically prior to the Annual Meeting by visiting www.proxyvote.com and in person at the Annual Meeting.

For instructions on how to vote your shares, please refer to the instructions on the Notice of Internet Availability you received in the mail, the section titled “How do I Vote” in the Proxy Statement or, if you requested to receive printed proxy materials, your enclosed proxy card.

Whether or not you plan to attend the Annual Meeting, please vote your shares as soon as possible in accordance with the instructions provided to you in the Notice of Internet Availability to ensure that your vote is counted at the Annual Meeting.

Any stockholder of record attending the Annual Meeting may vote at the Annual Meeting even if such stockholder has previously returned a proxy. Each stockholder may appoint only one proxy holder to attend the Annual Meeting on such stockholder’s behalf. Please note, however, that if your shares are held of record by a broker, bank or other nominee and you wish to vote at the Annual Meeting, you must obtain a proxy issued in your name from that record holder.

TABLE OF CONTENTS

Clene Inc.

6550 South Millrock Drive, Suite G50

Salt Lake City, Utah 84121

PROXY STATEMENT FOR 2025 ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON MAY 22, 2025

QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING

PROPOSAL NO. 1

ELECTION OF DIRECTORS

Our Board

Our Board has fixed the number of directors at nine. Our Board is divided into three classes, designated as Class I, Class II and Class III, that each serve staggered three-year terms. The terms of office of our Class II directors will expire at the upcoming Annual Meeting, the terms of office of our Class III directors will expire at the 2026 Annual Meeting of Stockholders, and the terms of office of our Class I directors will expire at the 2027 Annual Meeting of Stockholders.

We believe it is in our best interest to continue to have a classified board structure with three-year terms due to the uniqueness of our assets and strategies. Our focus on research and development of pharmaceuticals requires long-term business strategies, and we believe this requires our directors to have a long-term outlook and understanding rather than a focus on short-term results. We believe that this focus on long-term results will serve the Company well and create value for our stockholders. We believe that the classification of our Board will encourage experience and leadership stability and will assure desirable continuity in leadership and policy.

Selection of Nominees

Based on the recommendations from the Nominating and Corporate Governance Committee, our Board has nominated three continuing directors, David J. Matlin, Arjun “JJ” Desai, M.D., and Matthew Kiernan AM, Ph.D., DSc, to stand for re-election to the Board, each to serve a three-year term expiring at the 2028 Annual Meeting of Stockholders or until the election and qualification of their respective successors or until their earlier death, retirement, resignation or removal.

Each of Mr. Matlin, Dr. Desai, and Professor Kiernan are independent directors as defined by applicable Nasdaq listing standards governing the independence of directors. Each nominee has consented to being named as a nominee in this Proxy Statement and has indicated a willingness to serve on the Board if elected. However, if any nominee is unable to serve, proxies will be voted for any replacement candidate nominated by our Board.

Class II Director Nominees for Election for a Three-Year Term Ending with the 2028 Annual Meeting of Stockholders:

Vote Required and Board Recommendation

Directors shall be elected by the holders of the plurality of the votes cast by the holders of shares present in person or represented by proxy at the Annual Meeting and entitled to vote on the election of directors.

THE BOARD UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE “FOR” THE ELECTION OF EACH OF THESE NOMINEES AS DIRECTOR.

Information Regarding the Board and Director Nominees

The following table provides summary information about the director nominees and our other directors, and the membership of our standing committees.

Class III Directors Continuing in Office Until the 2026 Annual Meeting of Stockholders:

Class I Directors Continuing in Office Until the 2027 Annual Meeting of Stockholders:

PROPOSAL NO. 2

RATIFICATION OF THE APPOINTMENT OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Our Audit Committee has appointed Deloitte & Touche LLP, an independent registered public accounting firm, to serve as our auditor for the fiscal year ending December 31, 2025. Deloitte has served as our auditor since the year ended December 31, 2021.

Based on information in the Audit Committee Report provided elsewhere in this Proxy Statement, our Audit Committee is satisfied that Deloitte is sufficiently independent of management to perform its duties properly. Although not legally required to do so, our Board considers it desirable to seek, and recommends, stockholder ratification of our selection of Deloitte as our independent registered public accounting firm for fiscal year 2025. If the stockholders fail to ratify our selection, the Audit Committee will reconsider whether or not to retain that firm. Even if the selection 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 the Audit Committee determines that such a change would be in the best interest of Clene and its stockholders.

Representatives of Deloitte are expected to attend the Annual Meeting, be available to respond to appropriate questions, and will have the opportunity to make a statement if they desire to do so.

Principal Accounting Fees and Services

The aggregate fees for audit and other services provided by Deloitte for the fiscal years ended December 31, 2024 and 2023 are as follows:

Audit Committee Policy for Pre-Approval of Independent Registered Public Accountant Services

Our Audit Committee has adopted procedures requiring the pre-approval of all non-audit (including tax) services performed by our independent registered public accounting firm in order to assure that these services do not impair the auditor’s independence. These procedures generally approve the performance of specific services subject to a cost limit for all such services. This general approval is to be reviewed, and if necessary modified, at least annually. Management must obtain the specific prior approval of the Audit Committee for each engagement of the independent registered public accounting firm to perform other audit-related or other non-audit services. For engagements for audit-related or tax-related services within a specified dollar limit, the Chair of the Audit Committee has authority to provide such prior approval, and she reports to the full committee whenever she has exercised that authority. The Audit Committee does not delegate its responsibility to approve services performed by the independent registered public accounting firm to any member of management.

The standard applied by the Audit Committee in determining whether to grant approval of any type of non-audit service, or of any specific engagement to perform a non-audit service, is whether the services to be performed, the compensation to be paid therefore and other related factors are consistent with the independent registered public accounting firm’s independence under guidelines of the SEC and applicable professional standards. Relevant considerations include whether the work product is likely to be subject to, or implicated in, audit procedures during the audit of our financial statements, whether the independent registered public accounting firm would be functioning in the role of management or in an advocacy role, whether the independent registered public accounting firm’s performance of the service would enhance our ability to manage or control risk or improve audit quality, whether such performance would increase efficiency because of the independent registered public accounting firm’s familiarity with our business, personnel, culture, systems, risk profile and other factors, and whether the amount of fees involved, or the non-audit services portion of the total fees payable to the independent registered public accounting firm in the period, would tend to reduce the independent registered public accounting firm’s ability to exercise independent judgment in performing the audit. During the year ended December 31, 2024, all services provided by Deloitte were pre-approved by the Audit Committee.

Vote Required and Board Recommendation

The affirmative vote of the holders of a majority of the votes cast is required to ratify this proposal.

THE BOARD UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE “FOR” THE RATIFICATION OF THE APPOINTMENT OF DELOITTE AS OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR FISCAL YEAR 2025.

PROPOSAL NO. 3

APPROVAL, ON AN ADVISORY BASIS, OF OUR EXECUTIVE COMPENSATION

Pursuant to Section 14A of the Exchange Act, we are providing our stockholders with an opportunity to cast an advisory, non-binding vote on the compensation of our NEOs, commonly referred to as a “say-on-pay” vote. Last year, our stockholders voted to hold an advisory, non-binding vote on compensation of our NEOs every year, and we expect to hold a similar vote at the 2026 Annual Meeting.

Our executive compensation programs are designed to attract and retain individuals with the proper qualifications to manage and lead Clene, to motivate them to develop professionally and contribute to the achievement of our financial goals, and to ultimately create and grow our overall enterprise value. Our Compensation Committee regularly reviews our executive compensation programs to ensure they continue to meet our objectives and align our executive compensation structure with the interests of stockholders. This vote is not intended to address any specific item of compensation or any specific NEO, but rather the overall compensation of all our NEOs as described in this Proxy Statement. We encourage stockholders to read the section “—Executive Compensation” below for detailed information about our executive compensation programs and their objectives.

Our Board and Compensation Committee believe our executive compensation programs use appropriate structures and sound pay practices that are effective in achieving our core objectives. Accordingly, our Board and Compensation Committee asks that you vote in favor of the following resolution:

“RESOLVED, that the Company’s stockholders approve, on an advisory basis, the compensation paid to the named executive officers, as disclosed in the Company’s Proxy Statement for the Annual Meeting of Stockholders pursuant to Item 402 of Regulation S-K, including the compensation tables and narrative disclosures.”

Because this is an advisory vote, the outcome will not be binding on us or our Board or Compensation Committee. Nevertheless, our Board and Compensation Committee value the opinions expressed by our stockholders and will take the outcome of the vote into account in future determinations concerning our executive compensation program.

Vote Required and Board Recommendation

The affirmative vote of the holders of a majority of the votes cast is required to approve this proposal, on an advisory basis.

THE BOARD UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE “FOR” THE APPROVAL, ON AN ADVISORY BASIS, OF THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS.

PROPOSAL NO. 4

APPROVAL OF AN AMENDMENT TO OUR AMENDED 2020 STOCK PLAN TO INCREASE THE NUMBER OF SHARES OF COMMON STOCK RESERVED FOR ISSUANCE

Overview

The Amended 2020 Stock Plan, which replaced our Clene Nanomedicine, Inc. 2014 Stock Plan (the “2014 Stock Plan”), was initially approved by our stockholders on December 30, 2020 and was previously amended on May 9, 2023 and May 29, 2024. The purpose of the Amended 2020 Stock Plan is to attract and retain the services of (i) selected employees (approximately 71 persons), executive officers (approximately 6 persons), and directors of the Company or any parent or subsidiary (approximately 8 persons), and (ii) selected nonemployee agents, consultants, advisers, and independent contractors of the Company or any parent or subsidiary (approximately 10 persons).

Our Board has unanimously adopted, and is submitting for stockholder approval, an amendment to the Amended 2020 Stock Plan to increase the number of shares of Common Stock reserved for issuance thereunder by 800,000 shares (from 2,420,000 shares to 3,220,000 shares). As of March 25, 2025, we had a total of 8,596,063 shares of Common Stock issued and outstanding, 2,138,096 shares of Common Stock issued under the Amended 2020 Stock Plan as stock options or restricted stock awards, and 265,565 remaining shares of Common Stock available for issuance under the 2020 Stock Plan. As of March 25, 2025, the closing price of our Common Stock on Nasdaq was $3.46. Accordingly, our Board has determined that there are not sufficient shares of Common Stock available under the Amended 2020 Stock Plan to support our intended compensation programs over the next several years. Our Board believes that our equity compensation program, as implemented under the Amended 2020 Stock Plan, allows us to remain competitive with comparable companies in our industry by giving us the resources to attract and retain talented individuals to achieve our business objectives and build stockholder value. The ability to grant options and other equity-based awards helps us to motivate employees, executive officers, directors, and consultants and encourage them to devote their best efforts to our business and financial success.

If the Company’s stockholders approve this Proposal No. 4, we expect the number shares of Common Stock available for issuance under the Amended 2020 Stock Plan will be sufficient to meet our expected needs for up to two years based on our historical practices and performance and our anticipated future plans as determined by the Compensation Committee with input from its independent compensation consultant and our management. If the Company’s stockholders do not approve this Proposal No. 4, the current Amended 2020 Stock Plan will continue in its current form, but the proposed 800,000 share increase will not be effective and could result in a serious disruption of our compensation programs and will limit our ability to attract and retain the services of employees, executive officers, directors, and consultants.

Information Regarding the Amended 2020 Stock Plan

Burn Rate and Overhang

In setting and recommending to stockholders the number of additional shares to authorize under the Amended 2020 Stock Plan, the Board and Compensation Committee considered the historical number of equity awards granted under the Amended 2020 Stock Plan, and, as applicable, the 2014 Stock Plan, as well as the Company’s three-year average burn rate for the preceding three fiscal years as follows:

An additional metric that we use to measure the cumulative dilutive impact of our equity program is fully-diluted overhang (the sum of (1) the number of shares subject to equity awards outstanding under our 2014 Stock Plan and Amended 2020 Stock Plan, but not yet exercised or settled and (2) the number of shares available to be granted under our Amended 2020 Stock Plan, divided by the sum of (1) the total shares of Common Stock outstanding at the Record Date, (2) the number of shares subject to equity awards outstanding under our 2014 and Amended 2020 Stock Plan, but not yet exercised or settled, and (3) the number of shares available to be granted under our Amended 2020 Stock Plan. Our approximate fully-diluted overhang as of the Record Date was 23.0% as a percent of fully-diluted common shares outstanding. If the amendment to the Amended 2020 Stock Plan is approved, our approximate potential fully-diluted overhang as of that date would increase to 28.1% and then will decline over time.

In addition to the preceding information, the following are significant factors that we considered in the evaluation of the Compensation Committee, with input from its independent compensation consultant and our management, in determining acceptable and targeted levels of dilution: (i) competitive data from relevant peer companies and (ii) potential future cost saving initiatives, including reductions in compensation, hiring freezes, and/or elimination of certain staff positions. Our equity programs are assessed on an ongoing basis and the Compensation Committee regularly consults with its independent compensation consultant and management.

Outstanding Awards

The grant of awards under the Amended 2020 Stock Plan is discretionary, and we cannot determine now the number or type of options or other awards to be granted in the future to any particular person or group. The awards granted under the Amended 2020 Stock Plan as of March 25, 2025, are as follows:

Purpose of the Amended 2020 Stock Plan

Our Amended 2020 Stock Plan was approved by our stockholders on December 30, 2020 (the “Effective Date”) and amended on May 9, 2023 and May 29, 2024. The purpose of the Amended 2020 Stock Plan is to attract and retain the services of (i) selected employees, executive officers, and directors of the Company or any parent or subsidiary, and (ii) selected nonemployee agents, consultants, advisers, and independent contractors of the Company or any parent or subsidiary. Our employee equity compensation program, as implemented under the Amended 2020 Stock Plan, will allow us to remain competitive with comparable companies in our industry by giving us the resources to attract and retain talented individuals to achieve our business objectives and build stockholder value. The ability to grant options and other equity-based awards will help us to motivate employees, executive officers, directors, and consultants and encourage them to devote their best efforts to our business and financial success.

Description of the Amended 2020 Stock Plan

Subject to adjustment for various corporate actions such as stock splits or mergers described in more detail below, the shares to be offered under the Amended 2020 Stock Plan will consist of our Common Stock, and the total number of shares of Common Stock that may be issued under the Amended 2020 Stock Plan is 2,420,000, all of which may be issued pursuant to Incentive Stock Options or any other type of award under the Amended 2020 Stock Plan. If an option or other award granted under the Amended 2020 Stock Plan expires, terminates or is cancelled, the unissued shares subject to that option or award shall again be available under the Amended 2020 Stock Plan. If shares awarded pursuant to the Amended 2020 Stock Plan are forfeited to or repurchased at original cost by the Company, the number of shares forfeited or repurchased at original cost shall again be available under the Incentive Plan.

Options and stock awards may be granted at any time after the Effective Date and before termination of the Amended 2020 Stock Plan. The Amended 2020 Stock Plan will continue in effect until the earlier of (i) the date that is ten years after the Effective Date or (ii) such time as all shares available for issuance under the Amended 2020 Stock Plan have been issued and all restrictions on the shares have lapsed. Our Board may suspend or terminate the Amended 2020 Stock Plan at any time except with respect to options and stock awards then outstanding under the Amended 2020 Stock Plan. No options or stock awards may be granted under the Amended 2020 Stock Plan after its termination. Termination does not affect any outstanding options or stock awards, any right of ours to repurchase shares or the forfeitability of shares issued under the Amended 2020 Stock Plan.

The Amended 2020 Stock Plan is administered by our Board or our Compensation Committee to which the Board may delegate any or all authority for the administration of the Amended 2020 Stock Plan. If authority is delegated to our Compensation Committee, all references to the Board in the Amended 2020 Stock Plan and in this description shall mean and relate to the Compensation Committee, except (i) as otherwise provided by the Board; and (ii) that only the Board may amend or terminate the Amended 2020 Stock Plan. The Board or the Compensation Committee shall determine and designate the individuals to whom options or other awards shall be made (“Recipients”), the number of such options or awards, and the other terms and conditions of such options or awards. Subject to the provisions of the Amended 2020 Stock Plan and applicable law, the Board may adopt and amend rules and regulations relating to the administration of the Amended 2020 Stock Plan, advance the lapse of any waiting period, accelerate any exercise date, waive or modify any restriction applicable to shares, and make all other determinations in the judgment of the Board necessary or desirable for the administration of the Amended 2020 Stock Plan. The interpretation and construction of the provisions of the Amended 2020 Stock Plan and related agreements by the Board shall be final and conclusive. The Board may correct any defect or supply any omission or reconcile any inconsistency in the Amended 2020 Stock Plan or in any related agreement in the manner, and to the extent it deems expedient to carry the Amended 2020 Stock Plan into effect, and the Board shall be the sole and final judge of such expediency.

Our Board may, from time to time, take the following actions, separately or in combination, under the Amended 2020 Stock Plan: (i) grant incentive stock options as defined in Section 422 of the Internal Revenue Code, (ii) grant options other than incentive stock options; and (iii) grant stock awards as defined in the Amended 2020 Stock Plan. Awards may be made to employees, executive officers, directors, and other individuals selected by the Board, provided that only our employees or employees of any subsidiary are eligible to receive incentive stock options. The Board will select the individuals to whom awards shall be made and shall specify the action taken with respect to each individual to whom an award is made.

With respect to each option grant, the Board will determine the number of shares subject to the option, the exercise price, the duration of the option, the times at which the option may be exercised and whether the option is an incentive stock option or a non-statutory stock option. The exercise price per share will be determined by the Board at the time of the grant. The exercise price will not be less than 100% of the fair market value of the Common Stock covered by the option at the date the option is granted (110% for holders of 10% or more of our voting power). The fair market value will be the closing price of the Common Stock on the last trading day before the date the option is granted, if the stock is publicly traded, or another value of the Common Stock as specified by the Board in good faith. No Recipient of any option or other award under the Amended 2020 Stock Plan will have any rights as a stockholder with respect to any shares of Common Stock subject to such option or award until the date the Recipient becomes the holder of record of such shares.

The Board may issue shares under the Amended 2020 Stock Plan as stock awards for any form of consideration determined by the Board, including promissory notes and services and including no consideration or such minimum consideration as may be required by law. Stock awards shall be subject to the terms, conditions, and restrictions determined by the Board. The restrictions may include restrictions concerning transferability, repurchase by the Company, and forfeiture of the shares issued, together with any other restrictions determined by the Board. Stock awards subject to restrictions may be either restricted stock awards under which shares are issued immediately upon grant subject to forfeiture if vesting conditions are not satisfied or restricted stock units under which shares are not issued until after vesting conditions are satisfied. The related stock award agreement may contain any terms, conditions, restrictions, representations, and warranties required by the Board. No shares shall be issuable under a restricted stock award or similar stock award after the expiration of ten years from the date such award is granted.

We may require any Recipient of a stock award to pay to us in cash or by check amounts necessary to satisfy any applicable federal, state or local tax withholding requirements. If the Recipient fails to pay the amount demanded, we may withhold that amount from other amounts payable to the Recipient, including salary, subject to applicable law. With the Board’s consent, a Recipient may satisfy this obligation, in whole or in part, by instructing us to withhold from any shares to be issued or by delivering to us other shares of Common Stock; provided, however, that the number of shares so withheld or delivered shall not exceed the amount necessary to pay tax withholding to each jurisdiction calculated at the maximum tax rate applicable to income earned in that jurisdiction.

If our outstanding Common Stock is increased or decreased or changed into or exchanged for a different number or kind of shares or other securities by reason of any stock split, reverse stock split, combination of shares, dividend payable in shares, recapitalization, reclassification or other distribution of Common Stock to stockholders generally without the receipt of consideration by us, appropriate adjustment will be made by the Board in the number and kind of shares available for grants under the Amended 2020 Stock Plan and in all other share amounts set forth in the Amended 2020 Stock Plan. In addition, the Board will make appropriate adjustments in (i) the number and kind of shares subject to outstanding awards, and (ii) the exercise price per share of outstanding options, so that the Recipient’s proportionate interest before and after the occurrence of the event is maintained. Unless otherwise determined by the Board, in the event of a merger, consolidation, plan of exchange, acquisition of property or stock, split-up, split-off, spin-off, reorganization or liquidation to which we are a party or any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or substantially all, of our assets, the Board shall, in its sole discretion and to the extent possible under the structure of the transaction and the Amended 2020 Stock Plan, with respect to each outstanding option and stock award under the Amended 2020 Stock Plan, choose how options and awards shall be handled.

The Board may at any time modify or amend the Amended 2020 Stock Plan in any respect; provided, however, that any modification or amendment of the Amended 2020 Stock Plan shall be subject to stockholder approval to the extent required under applicable law or the rules of Nasdaq. No change in an option or other award already granted shall be made without the written consent of the Recipient if the change would adversely affect such Recipient.

U.S. Federal Income Tax Consequences

Stock option grants under the Amended 2020 Stock Plan may be intended to qualify as incentive stock options under Section 422 of the Code or may be non-qualified stock options. Generally, no federal income tax is payable by a participant upon the grant of a stock option and no deduction is taken by the Company. Our practice has been (i) to grant incentive stock options to executive officers and employees up to the $100,000 per year limitation under Section 422 of the Code, with any options in excess of the limited granted as non-qualified stock options, and (ii) to grant non-qualified stock options to directors and consultants. Under current tax laws, if a participant exercises a non-qualified stock option, he or she will have taxable income equal to the difference between the fair market value of the common stock on the exercise date and the stock option exercise price. We will be entitled to a corresponding deduction on our corporate income tax return. A participant will have no taxable income upon exercising an incentive stock option provided that the applicable periods for holding the resulting shares of stock are satisfied (except that alternative minimum tax may apply), and we will receive no deduction when an incentive stock option is exercised. The tax treatment for a participant of a disposition of shares acquired through the exercise of an option depends on how long the shares were held and on whether the shares were acquired by exercising an incentive stock option or a non-qualified stock option. We may be entitled to a deduction in the case of a disposition of shares acquired under an incentive stock option before the applicable holding periods have been satisfied.

For restricted stock awards, no taxes are due when the award is initially made (unless the recipient makes a timely election under Section 83(b) of the Code), but the award becomes taxable when it is no longer subject to a “substantial risk of forfeiture” ​(i.e., becomes vested or transferable). Income tax is paid at ordinary rates on the value of the stock when the restrictions lapse, and then at capital gain rates when the shares are sold if the value of the stock increases after the vesting date. Similarly, for RSUs, the award generally becomes taxable when the shares vest. Income tax is paid at ordinary rates on the value of the RSUs when the restrictions lapse, and then at capital gain rates when the shares are sold if the value of the stock increases after the vesting date.

The Amended 2020 Stock Plan has been drafted with the intention of avoiding the application of taxes under Section 409A of the Code to any participant on account of the grant, vesting, or settlement of awards.

Equity Compensation Plan Information

The number of shares of our Common Stock that may be issued under existing equity compensation plans as of December 31, 2024 was as follows:

Amendment to the Amended 2020 Stock Plan

Description of the Amendment to the Amended 2020 Stock Plan

The following is a summary of the proposed amendments to the Amended 2020 Stock Plan. The Amended 2020 Stock Plan for stockholder approval is included as Annex A to this Proxy Statement and the description of the amendment to the Amended 2020 Stock Plan herein is qualified entirely by reference to Annex A.

New Plan Benefits

The benefits or amounts that will be received by or allocated to any executive officers or employees under the Amended 2020 Stock Plan are not currently determinable since grants are at the discretion of the Compensation Committee.

SEC Registration

If Proposal No. 4 is approved, we intend to file a registration statement on Form S-8 in mid-2025 to register the additional shares added to the Amended 2020 Stock Plan.

Vote Required and Board Recommendation

The affirmative vote of the holders of a majority of the votes cast is required to approve this proposal.

THE BOARD UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE “FOR” THE APPROVAL OF AN AMENDMENT TO OUR AMENDED 2020 STOCK PLAN TO INCREASE THE NUMBER OF SHARES OF COMMON STOCK RESERVED FOR ISSUANCE THEREUNDER BY 800,000 SHARES.

CORPORATE GOVERNANCE

Board of Directors

Overview

Our Board oversees the Chief Executive Officer and other senior management in the competent and ethical operation of Clene on a day-to-day basis and ensures that the long-term interests of stockholders are being served.

Our key governance documents, including our Code of Business Conduct and Ethics and each standing committee’s charter, are available at invest.clene.com/governance. Information on, or that can be accessed through, our website is not part of these proxy soliciting materials, is not deemed “filed” with the SEC, and is not to be incorporated by reference into any of our filings under the Securities Act of 1933, as amended, or the Exchange Act, and, except for information filed by us under the cover of Schedule 14A, is not deemed to be proxy soliciting materials.

The Board met nine times during 2024, and each member of the Board who served during 2024 attended or participated in 75% or more of the aggregate of (i) the total number of meetings of the Board held during 2024, and (ii) the total number of meetings held by each committee of the Board on which such member served during 2024.

All directors of the Company are strongly encouraged to attend our annual meeting of stockholders. Eight of the directors attended our 2024 Annual Meeting of Stockholders.

Role of the Board in Risk Oversight

The Board has extensive involvement in the oversight of risk management related to our business and accomplishes this oversight through the regular reporting to the Board by the Audit Committee. The Audit Committee represents the Board by periodically reviewing our accounting, reporting and financial practices, including the integrity of our financial statements, the surveillance of administrative and financial controls and our compliance with legal and regulatory requirements. Through its regular meetings with management, including the finance, legal, internal audit and information technology functions, the Audit Committee reviews and discusses all significant areas of our business and summarizes for the Board all areas of risk and the appropriate mitigating factors. In addition, our Board receives periodic detailed operating performance reviews from management.

Board and Committee Structure

Our Board has fixed the number of directors at nine. Under our charter, our Board is divided into three classes, designated as Class I, Class II and Class III. Each class serves staggered three-year terms. The Board is committed to inclusiveness and diversity, and has adopted a Board Diversity Policy.

Each of our standing committees has a written charter approved by the Board that clearly establishes the committee’s roles and responsibilities. Our President and Chief Executive Officer and other executive officers will regularly report to the non-executive directors and to the Audit Committee, the Compensation Committee, and the Nominating and Corporate Governance Committee to ensure effective and efficient oversight of our activities and to assist in proper risk management and the ongoing evaluation of management controls.

The Board does not believe that rotating committee members at set intervals should be mandated as a policy since there may be reasons at a given point in time to maintain an individual Board member’s committee membership for a longer period.

The annual cycle of agenda items for Board and committee meetings reflects Board and committee requests and changing business and legal issues. The Board receives regularly scheduled presentations from our finance, legal and compliance departments, and operations. The Board’s and committees’ annual agenda includes review of, among other items, our long-term strategic plans and periodic reports on progress against these plans, emerging and disruptive technologies, potential acquisition or investment targets, capital projects, the evaluation of the Chief Executive Officer and management, and Board succession. Our President and Chief Executive Officer and other executive officers will regularly report to the non-executive directors and the audit, compensation and nominating and corporate governance committees to ensure effective and efficient oversight of our activities and to assist in proper risk management and the ongoing evaluation of management controls.

Committees of the Board of Directors

Audit Committee

The Audit Committee consists of Ms. Mosca, the chair, Mr. Jacobovitz and Mr. Gay. The Audit Committee held five meetings during 2024.

Each member of the Audit Committee meets the additional requirements regarding independence for Audit Committee members under Nasdaq listing rules. The Board has determined that Ms. Mosca, Mr. Jacobovitz and Mr. Gay are each an “audit committee financial expert” as defined in Item 407(d)(5) of Regulation S K under the Exchange Act based upon their professional experience and education.

The Audit Committee oversees our accounting and financial reporting process and audits of financial statements. It also assists the Board in oversight and monitoring of (i) the integrity of our financial statements, (ii) our compliance with legal and regulatory requirements, (iii) the independent registered public accounting firm’s qualifications and independence, (iv) the performance of our independent audit and of the independent registered public accounting firm, and (v) the principal risk exposures facing us that are related to financial statements, legal, regulatory and other similar matters, such as risks related to cybersecurity, as well as our related mitigation efforts. Additionally, the Audit Committee is responsible for preparing the Audit Committee Report included in our Proxy Statement. It also provides the Board with the results of its monitoring and any additional information and materials as the committee may determine is necessary to make the Board aware of significant financial matters requiring the Board’s attention.

Compensation Committee

The Compensation Committee consists of Mr. Jacobovitz, the chair, Ms. Mosca and Dr. Desai. The Compensation Committee held two meetings during 2024.

In addition to being independent, each member of the Compensation Committee is a “non-employee director” for purposes of the Exchange Act. No member of the Compensation Committee was at any time during fiscal year 2024, or at any other time, one of our executive officers or employees. None of our executive officers has served as a director or member of a compensation committee (or other committee serving an equivalent function) of any entity, one of whose executive officers served as a director on our Board or member of our Compensation Committee.

The Compensation Committee is responsible for overseeing our compensation program and determining the compensation of our executive officers. The Compensation Committee evaluates our compensation and incentive plans, policies and programs for executive officers and recommends the establishment of policies dealing with various compensation and employee benefit plans. The Compensation Committee is also tasked with, at least annually, assessing the risks associated with our compensation policies, and reports to the Board and the Audit Committee whether our compensation policies and practices create risks that are reasonably likely to have a material adverse effect on us.

The Compensation Committee also reviews the compensation paid to directors for service on the Board and its committees. It provides advice on management development matters that have major implications for the growth, development, and depth of our management team, including reviewing succession plans.

The Compensation Committee reviews, approves and, when appropriate, makes recommendations to the Board regarding the compensation of all executive officers. The Compensation Committee meets with its independent advisors and other independent members of the Board to determine the Chief Executive Officer’s compensation. Additionally, the Compensation Committee has the power to grant incentive and non-statutory stock options and restricted stock awards and other forms of stock awards to employees, executive officers, directors, and consultants.

To independently assist and advise the Compensation Committee, the Compensation Committee has retained Frederic W. Cook & Co., Inc. (“FW Cook”) as its compensation consultant. The engagement with FW Cook is exclusively with the Compensation Committee, which has sole authority to retain and terminate any compensation consultant or other advisor that it uses. FW Cook does not have any relationship with the Company or management except as it may relate to performing services on behalf of the Compensation Committee.

Nominating and Corporate Governance Committee

The Nominating and Corporate Governance Committee consists of Mr. Matlin, the chair, Mr. Gay and Dr. McLaughlin. The Nominating and Corporate Governance Committee held one meeting during 2024.

Each member of the Nominating and Corporate Governance Committee must be independent in accordance with Nasdaq listing rules.

The Nominating and Corporate Governance Committee identifies qualified individuals who should be considered for current or upcoming vacancies on the Board, consistent with the qualification criteria approved by the Board. It also reviews the qualifications of incumbent directors to determine whether to recommend them for reelection and selects, or recommends that the Board select, the director nominees for the next annual meeting of stockholders. The Nominating and Corporate Governance Committee is also responsible for identifying Board members who are qualified to fill vacancies on any Board committee and recommending that the Board appoint the identified member or members to the applicable committee.

The Nominating and Corporate Governance Committee also reviews and recommends applicable corporate governance principles to the Board. Additionally, it oversees the evaluation of the Board and management team and handles such other matters as are specifically delegated to the committee by the Board from time to time.

The Company has adopted a policy strongly discouraging directors and executive officers from engaging in transactions that hedge or offset any decrease in the market value of the Company’s Common Stock, or are designed to do so.

Corporate Governance Policies and Practices

We are committed to strong corporate governance. Our governance policies and practices include:

Ethical Conduct and Strong Governance

Director Independence

Code of Business Conduct and Ethics

We have adopted a code of business conduct that applies to all of our directors, executive officers, and employees, including our principal executive officer, principal financial officer, and principal accounting officer. The code of business conduct is available on our website. Our code of business conduct is a “code of ethics,” as defined in Item 406(b) of Regulation S-K. We will make any legally required disclosures regarding amendments to, or waivers of, provisions of our code of ethics on our website.

Related Person Policy

We adopted a written policy providing that our executive officers, directors, nominees for election as directors, beneficial owners of more than 5% of any class of our voting securities, any member of the immediate family of any of the foregoing persons, and any firm, corporation or other entity in which any of the foregoing persons is employed or is a general partner or principal or in a similar position or in which such person has a 5% or greater beneficial ownership interest, are not permitted to enter into a related party transaction with us without the approval of the Nominating and Corporate Governance Committee and the Audit Committee, subject to the exceptions described below.

A related person transaction is generally a transaction, arrangement, or relationship, or any series of similar transactions, arrangements or relationships, in which we and any related person are, were or will be participants in which the amount involved exceeds $120,000 in any calendar year. Transactions involving compensation for services provided to us as an employee or director are not covered by this policy.

We will collect information that we deem reasonably necessary from each director, executive officer, and, to the extent feasible, significant stockholders, to enable us to identify any existing or potential related-person transactions and to effectuate the terms of the policy. In addition, under the Code of Conduct, employees, executive officers, and directors have an affirmative responsibility to disclose any transaction or relationship that reasonably could be expected to give rise to a conflict of interest.

The policy requires that, in determining whether to approve, ratify, or reject a related person transaction, our Nominating and Corporate Governance Committee and Audit Committee must consider, in light of known circumstances, whether the transaction is in, or is not inconsistent with, our best interests and those of our stockholders, as our Nominating and Corporate Governance Committee and Audit Committee determine in the good faith exercise of their discretion.

Our Audit Committee has determined that certain transactions will not require the approval of the Audit Committee including certain employment arrangements of executive officers and director compensation.

Compensation Committee Interlocks and Insider Participation

No member of the Compensation Committee was at any time during fiscal year 2024, or at any other time, one of our executive officers or employees. None of our executive officers has served as a director or member of a Compensation Committee (or other committee serving an equivalent function) of any entity, one of whose executive officers served as a director of our Board or member of our Compensation Committee.

EXECUTIVE COMPENSATION

Introduction

Our executive compensation program is designed to attract and retain individuals with the proper qualifications to manage and lead Clene, to motivate them to develop professionally and contribute to the achievement of our financial goals, and to ultimately create and grow our overall enterprise value. Our NEOs for 2024 are as follows:

Robert Etherington.  For a biography of Mr. Etherington, please see “Proposal No. 1—Election of Directors—Information Regarding the Board and Director Nominees.”

Mark Mortenson.  Mr. Mortenson is our co-founder and has served as our Chief Science Officer since 2013. He is the co-inventor of the electro-crystal-chemistry platform developed to produce our novel clean-surfaced nanotechnology (“CSN^®”) therapeutics, as well as the inventor or co-inventor for 30 other U.S. patents and hundreds of corresponding foreign patents. Prior to joining Clene, Mr. Mortenson served as the Chief Operating Officer of Research, Development and Manufacturing for an advanced materials-based company of over 300 employees. In addition to his professional experience, Mr. Mortenson is a former Chief Patent Counsel responsible for approximately 5,500 patents and patent applications in the U.S. and 44 foreign countries. Mr. Mortenson received a B.S. in physics and a B.S. in ceramic engineering from Alfred University, a M.S. in material science from Pennsylvania State University, and a J.D. from George Washington University.

Morgan R. Brown.  Mr. Brown has been Clene’s Chief Financial Officer since February 2022. Prior to joining Clene, he has held executive finance roles in four publicly-traded life science companies, including three as Chief Financial Officer, and has been the Chief Financial Officer of a privately-held clinical research organization. Prior to joining Clene and since 2013, he served as Executive Vice President and Chief Financial Officer of Lipocine, Inc. based in Salt Lake City, Utah. Previously, he served as Executive Vice President and Chief Financial Officer at Innovus Pharmaceuticals and World Heart Corporation. Mr. Brown has also served as Chief Financial Officer and Senior Vice President at Lifetree Clinical Research, and Vice President, Finance and Treasurer at NPS Pharmaceuticals. He began his career at KPMG LLP, where he rose to Senior Audit Manager before departing for a career in various healthcare executive positions. Mr. Brown is a CPA in the State of Utah and earned his MBA from the University of Utah and B.S. in accounting from Utah State University. Mr. Brown has served on the boards of numerous professional organizations.

Employment Arrangements

Employment Agreements

Robert Etherington.  Mr. Etherington is party to an employment agreement dated February 1, 2022 (the “Etherington Agreement”), which provides for a base salary of $560,000 per year (subject to periodic adjustment as determined by us), an annual incentive bonus targeted at 50% of his base salary based on the achievement of performance objectives determined by the Board or Compensation Committee each year, eligibility to participate in our benefit plans and paid vacation. Mr. Etherington is also entitled to certain severance benefits upon a termination of his employment for a reason other than “cause” or his termination of his employment for “good reason.” Please see “— Severance Arrangements” for additional details. Mr. Etherington’s base salary was most recently adjusted in June 2023 to $629,160.

Mark Mortenson.  Mr. Mortenson is party to an executive officer letter agreement dated August 1, 2014, which provides for a base salary of $442,000 per year (subject to periodic adjustment as determined by our employee compensation policies), an annual bonus with a target pay-out of 40% of his base salary, and eligibility to participate in our benefit plans and paid vacation. Mr. Mortenson’s base salary was most recently adjusted in June 2023 to $496,480.

Morgan R. Brown.  Mr. Brown is party to an employment agreement dated February 1, 2022 (the “Brown Agreement”), which provides for a base salary of $375,000 per year (subject to periodic adjustment as determined by us), an annual incentive bonus targeted at 40% of his base salary based on the achievement of performance objectives determined by the Board or Compensation Committee each year, eligibility to participate in our benefit plans and paid vacation. Mr. Brown is also entitled to certain severance benefits upon a termination of his employment for a reason other than “cause” or his termination of his employment for “good reason.” Please see “— Severance Arrangements” for additional details. Mr. Brown's base salary was most recently adjusted in June 2023 to $401,250.

Long-Term Incentive Compensation

The Amended 2020 Stock Plan provides for the grant of incentive and non-statutory stock options and restricted stock units and other forms of stock awards to employees, executive officers, directors, and consultants. Shares subject to options that are expired, terminated, surrendered or cancelled under the Amended 2020 Stock Plan without having been exercised will be available for future grants of awards. The exercise prices, vesting periods and other restrictions are determined at the discretion of the Board, except that the exercise price per share of options may not be less than 100% of the fair market value of the Common Stock on the date of grant. Stock options awarded under the Amended 2020 Stock Plan expire ten years after the grant date, unless the Board sets a shorter term. Stock options granted to employees, executive officers, members of the Board and consultants typically become exercisable over a four-year period. The purpose of the Amended 2020 Stock Plan is to align the interests of management with those of stockholders.

Severance Arrangements

Robert Etherington.  Pursuant to the Etherington Agreement, Mr. Etherington’s employment is at will and may be terminated by the Company or Mr. Etherington at any time and for any reason, or for no reason. In the event he is terminated for Cause or resigns without Good Reason (defined below), Mr. Etherington will be entitled to (i) base salary earned through the termination date; (ii) expense reimbursements owed; (iii) bonuses earned prior to the termination date; (iv) a cash lump sum for accrued and unused vacation benefits earned through the termination date; (v) payments to which he is entitled pursuant to any employee benefit or compensation plan or program; and (vi) payments to which he is entitled pursuant to any other written agreements between the Company, its affiliates, and Mr. Etherington (the amounts in (i) through (vi) being the “Termination Amounts”). In the event he is terminated without Cause or resigns for Good Reason, Mr. Etherington will be entitled to the Termination Amounts, and subject to his execution of and compliance with a release agreement, Mr. Etherington will also be entitled to (i) one times the base salary as of the termination date; (ii) a bonus equal to 100% of the actual bonus that would have been earned for a similar period as the base salary; (iii) acceleration of all outstanding and unvested equity awards; and (iv) COBRA coverage reimbursed by the Company through certain periods (the amounts in (i) through (iv) being the “Additional Termination Amounts”). In the event he is terminated without Cause or resigns for Good Reason within 30 days before or 12 months after a Change in Control (defined below), Mr. Etherington will be entitled to the Termination Amounts and the Additional Termination Amounts, with the exception that he will receive two times the base salary and target bonus under the Additional Termination Amounts.

Morgan R. Brown.  Pursuant to the Brown Agreement, Mr. Brown’s employment is at will and may be terminated by the Company or Mr. Brown at any time and for any reason, or for no reason. In the event he is terminated for Cause or resigns without Good Reason (defined below), Mr. Brown will be entitled to the Termination Amounts. In the event he is terminated without Cause or resigns for Good Reason, Mr. Brown will be entitled to the Termination Amounts, and subject to his execution of and compliance with a release agreement, Mr. Brown will also be entitled to the Additional Termination Amounts. In the event he is terminated without Cause or resigns for Good Reason within 30 days before or 12 months after a Change in Control, Mr. Brown will be entitled to the Termination Amounts and the Additional Termination Amounts, with the exception that he will receive two times the base salary and target bonus under the Additional Termination Amounts.

The Etherington Agreement and Brown Agreement generally provide that “Cause” means the occurrence of any of the following: (i) willful failure, disregard or refusal to substantially perform material duties or obligations or to follow lawful directions received from the Board or the President (as the case may be) if: (A) the Company gives written notice of the condition alleged to constitute Cause, which notice shall describe such condition; and (B) the executive fails to remedy such condition (if curable) within 30 days following receipt of the written notice; (ii) any grossly negligent act having the effect of materially injuring (whether financially or otherwise) the business or reputation of the Company or any willful act intended to cause such material injury, except any acts (A) made in connection with the enforcement of the executive’s rights or (B) which are required by law or pursuant to a subpoena or demand by a governmental or regulatory body; (iii) conviction for any felony involving moral turpitude (including entry of a nolo contendere plea); (iv) the determination, after a reasonable and good-faith investigation by the Company, of engagement in discrimination prohibited by law that had a material and injurious effect on the Company; (v) willful misappropriation or embezzlement of a material amount of property of the Company or its affiliates (whether or not a misdemeanor or felony); or (vi) material breach of the employment agreement and/or of the executive’s proprietary information and inventions agreement that had a material and injurious effect on the Company; provided, however, that, any such termination shall only be deemed for Cause pursuant to this definition if: (A) the Company gives written notice of the condition alleged to constitute Cause, which notice shall describe such condition; and (B) the executive fails to remedy such condition (if curable) within 30 days following receipt of the written notice.

The Etherington Agreement and Brown Agreement generally provide that “Good Reason” means any of the following, without prior written consent: (i) any reduction by the Company of base salary unless such reduction occurs in connection with a Company-wide decrease in executive compensation; (ii) a material breach by the Company or its affiliates of the agreement or any other written agreement with the Company or its affiliates; (iii) a material adverse change in duties, titles, authority, responsibilities or reporting relationships, with such determination being made with reference to the greatest extent of the executive’s duties, titles, authority, responsibilities or reporting relationships as increased (but not decreased) from time to time; (iv) any failure of the Company or its affiliates to pay any amount owed to the executive; (v) the Company’s failure to obtain an agreement from any successor to the Company to assume and agree to perform the agreement in the same manner and to the same extent that the Company would be required to perform if no succession had taken place, except where such assumption occurs by operation of law; (vi) moving the executive’s main place of work more than 50 miles from its present location or requiring business travel away from home by more than 50 nights per year; (vii) any reduction in bonus eligibility; or (viii) the assignment of duties materially inconsistent with the executive’s position with the Company; provided, however, that, any such termination shall only be deemed for Good Reason pursuant to this definition if: (1) the executive gives the Company written notice of his or her intent to terminate for Good Reason, within 30 days following the executive’s knowledge of the condition giving rise to Good Reason, which notice shall describe such condition; (2) the Company fails to remedy such condition within 30 days following receipt of the written notice (the “Cure Period”); and (3) the executive voluntarily terminates his or her employment within 30 days following the end of the Cure Period.

The Etherington Agreement and Brown Agreement define “Change of Control” as a merger, consolidation, plan of exchange, acquisition of property or stock, split-up, split-off, spin-off, reorganization or liquidation to which the Company or a majority-in-interest of its stockholders is a party or any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or substantially all, of the assets of the Company (except an event in which the majority of the beneficial ownership of the Company and its assets does not change).

401(k) Retirement Plan

Our 401(k) plan is designed to provide retirement benefits to all eligible employees. The 401(k) plan provides eligible employees the opportunity to save for retirement on a tax-favored basis. Our NEOs may elect to participate in the 401(k) plan on the same basis as all other employees. We match 100% of a participating employee’s deferral contributions up to 3% of annual compensation, limited to $4,500 of matching contributions per year.

Potential Payments Upon Termination or Change in Control

See “— Severance Arrangements.”

Clawback Policy

Effective November 28, 2023, our Board adopted a clawback policy pursuant to the listing standards approved by Nasdaq implementing Rule 10D-1 under the Exchange Act. If we are required to prepare an accounting restatement due to material noncompliance with any financial reporting requirement under securities laws, we are obligated to recover erroneously awarded incentive-based compensation (subject to certain limited exceptions described in the policy and permitted by the final clawback rules) received from the Company by any current or former executive officer in the three completed fiscal years immediately preceding the date that it is concluded or reasonably should be concluded that we are required to prepare such an accounting restatement, or the date that we are directed by a legally authorized body to prepare such an accounting restatement. Erroneously awarded incentive-based compensation is the amount received that exceeds the amount of incentive-based compensation that otherwise would have been received had it been determined based on the restated financial statements.

Compensation Actions Taken in 2024

None.

Summary Compensation Table - 2024

The following table provides summary information concerning compensation awarded to, earned by, or paid to our NEOs for the years listed below:

We do not grant equity awards in anticipation of the release of material nonpublic information, and we do not time the release of material nonpublic information based on equity award grant dates.

Outstanding Equity Awards at Fiscal Year-End - 2024

The following table provides information regarding outstanding equity awards for our NEOs as of December 31, 2024:

Pay Versus Performance

In accordance with Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K, we are required to disclose certain information about the relationship between the compensation actually paid to our principal executive officer (“PEO”) and our other NEOs in comparison to certain performance measures of the Company. These disclosures are prescribed by the SEC and do not necessarily reflect value actually realized by our executives or align with how we or the Compensation Committee view the link between Company performance and executive compensation. The performance measures are not those used by the Compensation Committee when setting executive compensation.

Description of Relationships Between Compensation Actually Paid and Performance

We do not utilize TSR as a performance measure in our executive compensation programs. However, as described under “—Employment Arrangements,” part of the compensation our executive officers are eligible to receive consists of annual performance-based cash bonuses that are designed to provide appropriate incentives to our executive officers based upon annual achievement as determined by our Board. Additionally, we view equity compensation, which is as an integral part of our executive compensation, as related to Company performance although not directly tied to TSR, because it provides value only if the market price of our Common Stock increases and if the executive officer continues in our employment over the vesting period, thereby aligning the interests of our executive officers with those of stockholders. The following graph shows the relationship between compensation actually paid to our PEO, the average of compensation actually paid to our non-PEO NEOs, and our TSR over the three most recently completed fiscal years.

Due to our status as a clinical-stage pharmaceutical company, we do not currently have meaningful sources of revenue and therefore we do not consider net loss as a performance measure for our executive compensation programs. Our net loss is primarily driven by expenses for research and development and general and administrative activities. The following graph shows the relationship between compensation actually paid to our PEO, the average of compensation actually paid to our non-PEO NEOs, and our net loss over the three most recently completed fiscal years.

DIRECTOR COMPENSATION

Director Compensation Table - 2024

The following table sets forth compensation earned during 2024 by directors who are not NEOs.

Director Compensation Policy

Our director compensation policy was approved on April 16, 2021 and is outlined below.

Annual Board Service

Under our director compensation policy, each non-employee director that has previously served at least six months receives a stock option grant at the time of the annual meeting of stockholders for 30,000 shares of Common Stock. All such options become exercisable over 12 equal monthly installments and shall become fully vested upon the earlier of a merger, consolidation, or other transaction as defined in the director compensation policy, or the next annual meeting of stockholders; and have an exercise price equal to the closing price of the Common Stock on the date of grant.

Quarterly Board and Committee Service

The director compensation policy also provides for quarterly retainers for board and committee service for a number of shares calculated by determining the Black-Scholes value of the option grant as outlined below. All such options become fully exercisable when granted and have an exercise price equal to the closing price of the Common Stock on the date of grant.

Election of New Director

The director compensation policy also provides for a stock option grant for newly appointed or elected directors for 45,000 shares of the Common Stock. All such options become exercisable over 36 equal monthly installments and have an exercise price equal to the closing price of the Common Stock on the date of grant.

CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

The following is a description of transactions to which we were a participant since January 1, 2024 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, and in which any of our executive officers, directors or holders of more than 5% of any class of our voting securities, or an affiliate or immediate family member thereof, had or will have a direct or indirect material interest.

License and Supply Agreements

In August 2018, we entered into a license agreement (the “License Agreement”) and exclusive supply agreement (the “Supply Agreement”) with 4Life Research LLC (“4Life”), an entity controlled by David Lisonbee, a 5% or greater stockholder, in conjunction with 4Life’s investment in the Series C preferred stock and warrants of our predecessor. On April 25, 2024, we entered into an amendment to the License Agreement and Supply Agreement (the “Amended 4Life Agreements”). The Amended 4Life Agreements contain the following terms:

We currently provide, on a non-exclusive basis, an aqueous zinc-silver ion dietary (mineral) supplement which is sold by 4Life under the trade name Zinc Factor™, and an aqueous gold dietary (mineral) supplement of very low-concentration gold nanoparticles, on an exclusive basis, which is sold by 4Life under the tradename Gold Factor™ and is subject to royalties. During the year ended December 31, 2024, we generated product revenue of $0.2 million and royalty revenue of $0.1 million under the 4Life Agreements.

Private Placements

In October 2024, in concurrent private placements, we sold 379,930 shares of Common Stock, pre-funded warrants to purchase up to 424,358 shares of Common Stock (the “2024 Pre-Funded Warrants”), and warrants to purchase up to 804,288 shares of Common Stock (the “2024 Common Warrants”). The aggregate gross proceeds from the private placements were approximately $3.8 million, excluding the proceeds, if any, from the exercise of the 2024 Pre-Funded Warrants and 2024 Common Warrants. The aggregate gross proceeds included: (i) approximately $0.5 million contributed by David Matlin, an independent director and chairman of our Board, (ii) approximately $0.8 million contributed by Kensington Clene 2021, LLC, an entity controlled by Alison Mosca, an independent director, and (iii) approximately $2.0 million contributed by SymBiosis II, LLC, a 5% or greater stockholder.

The 2024 Pre-Funded Warrants were exercisable immediately at a price of $0.001 per share and expire when exercised in full. The 2024 Common Warrants were exercisable immediately at a price of $4.82 per share and expire five years from issuance. If we enter into or become party to a fundamental transaction (which generally includes a merger or consolidation; the sale, lease, license, assignment, transfer, conveyance, or other disposition of all or substantially all our assets; purchase, tender, or exchange offers; a reclassification, reorganization, or recapitalization of our Common Stock; or a stock or share purchase agreement or other business combination), then the holders of the 2024 Pre-Funded Warrants and 2024 Common Warrants shall be entitled to receive, upon any subsequent exercise, the number of shares of common stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and any additional consideration receivable as a result of such fundamental transaction by a holder of the number of shares of Common Stock for which the warrant is exercisable immediately prior to such fundamental transaction. Additionally, at the option of the holders of the 2024 Common Warrants, we or our successor shall purchase the 2024 Common Warrants by paying the holders an amount of cash equal to the Black-Scholes value of the unexercised 2024 Common Warrants; provided that, if the fundamental transaction is not within our control, including not approved by our Board, the holder shall only be entitled to receive the same consideration (and in the same proportion), at the Black-Scholes value of the unexercised portion of the 2024 Common Warrant, that is being offered and paid to the holders of our Common Stock in connection with the fundamental transaction; provided, further, that if holders of our Common Stock are not offered or paid any consideration in such fundamental transaction, such holders of our Common Stock will be deemed to have received common stock of the successor in such fundamental transaction.

Senior Secured Convertible Promissory Notes

In December 2024, we entered into a note purchase agreement (the “Note Purchase Agreement”) pursuant to which we sold senior secured convertible promissory notes (the “2024 SSCP Notes”) in a principal amount totaling $10.0 million and bearing interest at an annual rate of 12.00%. The 2024 SSCP Notes were sold to related parties, including: (i) $8.0 million to Kensington Clene 2024, LLC, an entity controlled by Alison Mosca, an independent director, and (ii) $1.0 million each to 4Life and La Scala Investments, LLC, entities controlled by David Lisonbee, a 5% or greater stockholder and board member of a subsidiary of Clene (collectively, the “Holders”). Pursuant to the Note Purchase Agreement, we first used the 2024 SSCP Note proceeds to satisfy our obligations under the loan with Avenue Venture Opportunities Fund, L.P. The 2024 SSCP Notes expire on the earlier of (i) June 20, 2026 or (ii) upon a change in control transaction. Payments are interest-only for the first 12 months, followed by monthly principal installments totaling $1.0 million per month until the maturity date, upon which date the remaining principal and accrued and unpaid interest shall be due.

We are subject to covenants until maturity, including a requirement to maintain unrestricted cash and cash equivalents of at least $2.0 million. We are not in violation of any covenants. If certain events of default occur and are continuing, the Holders of a majority of the outstanding principal balance may accelerate all obligations under the 2024 SSCP Notes, plus a penalty equal to 10% of all outstanding principal and accrued and unpaid interest. The 2024 SSCP Notes are collateralized by substantially all our tangible and intangible property and rights (the “Collateral”). During the continuance of an event of default, if the Collateral is sold or otherwise disposed of and the proceeds thereof are insufficient to satisfy our obligations under the 2024 SSCP Notes, we shall be liable for any deficiency, together with additional interest thereon at the rate of 10% per annum.

The Holders may, in their sole discretion, convert up to 65% of outstanding principal into the number of shares of our Common Stock equal to the outstanding principal to be converted divided by $5.668. Notwithstanding, in the event a Holder declines to convert its pro rata share of outstanding principal, the remaining Holders may convert additional amounts, provided that no converted principal among all 2024 SSCP Notes exceeds $6.5 million. In the event of a change in control or any bankruptcy, liquidation, or other restructuring process, the Holders may, at their option, (i) convert up to 65% of outstanding principal into Common Stock, (ii) receive a cash payment equal to 115% of the outstanding principal, or (iii) any combination thereof, prior to such monetization event, before any security or claim junior to the 2024 SSCP Notes shall receive any proceeds from such monetization event.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth information regarding the beneficial ownership of our Common Stock by:

Beneficial ownership is determined in accordance with the rules of the SEC, which generally provide that a person has beneficial ownership of a security if he, she or it possesses sole or shared voting or investment power over that security, including options and warrants that are currently exercisable or exercisable within 60 days. Accordingly, all Common Stock subject to options or warrants that are exercisable within 60 days of March 25, 2025 are deemed to be outstanding and beneficially owned by the holders of such options or warrants for the purpose of calculating the holder’s beneficial ownership. They are not, however, deemed to be outstanding and beneficially owned for the purpose of computing the percentage ownership of any other person. Except as indicated by the footnotes below, we believe, based on the information furnished to us, that the persons and entities named in the table below have sole voting and investment power with respect to all stock that they beneficially own, subject to applicable community property laws.

The percentage ownership of the Company is based on 8,596,063 shares of Common Stock issued and outstanding as of March 25, 2025.

AUDIT COMMITTEE REPORT

The following is the report of the Audit Committee with respect to Clene Inc.’s audited financial statements for the year ended December 31, 2024.

The purpose of the Audit Committee is to assist the Board in fulfilling its responsibility to oversee our accounting and financial reporting, internal controls and audit functions. The Audit Committee Charter describes in greater detail the full responsibilities of the Audit Committee and is available on our website at invest.clene.com/governance. The Audit Committee is comprised entirely of independent directors as defined by applicable Nasdaq Stock Market standards.

Management is responsible for our internal controls and the financial reporting process. Deloitte & Touche LLP (“Deloitte”), our independent registered public accounting firm for the fiscal year ended December 31, 2024, was responsible for performing an independent audit of our consolidated financial statements in accordance with the standards established by the Public Company Accounting Oversight Board (“PCAOB”) and issuing a report thereon. The Committee’s responsibility is to monitor these processes.

In the course of its oversight of our financial reporting process, the Audit Committee:

Based on the foregoing review and discussions, the Audit Committee recommended to the Board that the 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.

OTHER BUSINESS

We know of no other matters to be submitted to a vote of stockholders at the Annual Meeting. If any other matter is properly brought before the Annual Meeting or any adjournment thereof, it is the intention of the persons named in the enclosed proxy to vote the shares they represent in accordance with their judgment. For future annual meetings, in order for any stockholder to nominate a candidate or to submit a proposal for other business to be acted upon at a given annual meeting, he or she must provide timely written notice to our Corporate Secretary in the form prescribed by our amended and restated bylaws, as described under “Questions and Answers About the Annual Meeting and Voting—When are stockholder proposals and director nominations due for next year’s annual meeting?”

ANNEX A

CLENE INC.

AMENDED 2020 STOCK PLAN

1.    Purpose. The purpose of this Amended 2020 Stock Plan (the “Plan”) is to enable Clene Inc., a Delaware corporation (the “Company”), to attract and retain the services of (i) selected employees, officers, and directors of the Company or any parent or subsidiary of the Company, and (ii) selected nonemployee agents, consultants, advisers, and independent contractors of the Company or any parent or subsidiary of the Company. For purposes of this Plan, a person is considered to be employed by or in the service of the Company if the person is employed by or in the service of any entity (the “Employer”) that is either the Company or a parent or subsidiary of the Company.

2.    Shares Subject to the Plan. Subject to adjustment as provided below and in Section 8, the shares to be offered under the Plan shall consist of Common Stock of the Company (“Common Stock”), and the total number of shares of Common Stock that may be issued under the Plan shall be three million two hundred twenty thousand (3,220,000) shares, all of which may be issued pursuant to Incentive Stock Options or any other type of award under the Plan. If an option or other award granted under the Plan expires, terminates or is canceled, the unissued shares subject to that option or award shall again be available under the Plan. If shares awarded pursuant to the Plan are forfeited to or repurchased at original cost by the Company, the number of shares forfeited or repurchased at original cost shall again be available under the Plan.

3.    Effective Date and Duration of Plan.

3.1    Effective Date. The Plan was adopted by the board of directors of the Company (the “Board of Directors”) and became effective as of December 28, 2020 (the “Effective Date”). The Plan was approved by the Company’s stockholders on December 30, 2020. Options and stock awards pursuant to Section 7 (“Stock Awards”) may be granted at any time after the Effective Date and before termination of the Plan. An amendment to the Plan to increase the total number of shares of Common Stock that may be issued under the plan was adopted by the Board of Directors on March 27, 2023 and approved by the Company’s stockholders on May 9, 2023. A second amendment to the Plan to increase the total number of shares of Common Stock that may be issued under the plan was adopted by the Board of Directors on April 3, 2024 and approved by the Company’s stockholders on May 29, 2024. A third amendment to the Plan to increase the total number of shares of Common Stock that may be issued under the plan was adopted by the Board of Directors on March __, 2025 and approved by the Company’s stockholders on May __, 2025.

3.2    Duration. The Plan shall continue in effect until the earlier of (i) the date that is 10 years after the Effective Date or (ii) such time as all shares available for issuance under the Plan have been issued and all restrictions on the shares have lapsed. The Board of Directors may suspend or terminate the Plan at any time except with respect to options Stock Awards then outstanding under the Plan. No options or Stock Awards may be granted under the Plan after termination of the Plan. Termination shall not affect any outstanding awards, any right of the Company to repurchase shares or the forfeitability of shares issued under the Plan.

4.    Administration.

4.1    Board of Directors. The Plan shall be administered by the Board of Directors, which shall determine and designate the individuals to whom awards shall be made (“Recipients”), the amount of the awards, and the other terms and conditions of the awards. Subject to the provisions of the Plan, the Board of Directors may adopt and amend rules and regulations relating to administration of the Plan, advance the lapse of any waiting period, accelerate any exercise date, waive or modify any restriction applicable to shares (except those restrictions imposed by law), and make all other determinations in the judgment of the Board of Directors necessary or desirable for the administration of the Plan. The interpretation and construction of the provisions of the Plan and related agreements by the Board of Directors shall be final and conclusive. The Board of Directors may correct any defect or supply any omission or reconcile any inconsistency in the Plan or in any related agreement in the manner and to the extent it deems expedient to carry the Plan into effect, and the Board of Directors shall be the sole and final judge of such expediency.

4.2    Committee. The Board of Directors may delegate to any committee of the Board of Directors (the “Committee”) any or all authority for administration of the Plan. If authority is delegated to the Committee, all references to the Board of Directors in the Plan shall mean and relate to the Committee, except (i) as otherwise provided by the Board of Directors, and (ii) that only the Board of Directors may amend or terminate the Plan as provided in Section 3 and Section 9.

5.    Types of Awards, Eligibility. The Board of Directors may, from time to time, take the following actions, separately or in combination, under the Plan: (i) grant incentive stock options (“Incentive Stock Options”), as defined in Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”), as provided in Section 6.1 and Section 6.2; (ii) grant options other than Incentive Stock Options (“Non-Statutory Stock Options”) as provided in Section 6.1; and (iii) grant Stock Awards as provided in Section 7. Awards may be made to employees, including employees who are officers or directors, and to other individuals described in Section 1 selected by the Board of Directors; provided, however, that only employees of the Company or any parent or subsidiary of the Company (as defined in subsections 424(e) and 424(f) of the Code) are eligible to receive Incentive Stock Options under the Plan. The Board of Directors shall select the individuals to whom awards shall be made and shall specify the action taken with respect to each individual to whom an award is made.

6.    Option Grants.

6.1    General Rules Relating to Options.

6.1-1    Terms of Grant. The Board of Directors may grant options under the Plan. With respect to each option grant, the Board of Directors shall determine the number of shares subject to the option, the exercise price, the period of the option, the time or times at which the option may be exercised and whether the option is an Incentive Stock Option or a Non-Statutory Stock Option.

6.1-2    Exercise Price. The exercise price per share shall be determined by the Board of Directors at the time of grant. Except as provided in Section 6.2-2, the exercise price shall not be less than 100% of the fair market value of the Common Stock covered by the option at the date the option is granted. The fair market value shall be the closing price of the Common Stock on the last trading day before the date the option is granted, if the stock is publicly traded, or another value of the Common Stock as specified by the Board of Directors.

6.1-3    Exercise of Options. Except as provided in Section 6.1-6 or as determined by the Board of Directors, no option granted under the Plan may be exercised unless at the time of exercise the Recipient is employed by or in the service of the Company and shall have been so employed or provided such service continuously since the date the option was granted. Except as provided in Section 6.1-6 and Section 8, options granted under the Plan may be exercised from time to time over the period stated in each option in amounts and at times prescribed by the Board of Directors, provided that options may not be exercised for fractional shares.

6.1-4    Nontransferability. Each option granted under the Plan by its terms (i) shall be nonassignable and nontransferable by the Recipient, either voluntarily or by operation of law, except by will or by the laws of descent and distribution of the state or country of the Recipient’s domicile at the time of death, and (ii) during the Recipient’s lifetime, shall be exercisable only by the Recipient; provided, however, that the Board of Directors may permit a Non-Statutory Stock Option to be transferable by gift or domestic relations order to a Family Member of the Recipient. For purposes of the foregoing proviso, the term “Family Member” includes any child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including adoptive relationships, any person sharing the Recipient’s household (other than a tenant or employee), a trust in which these persons have more than 50% of the beneficial interest, a foundation in which these persons (or the Recipient) control the management of assets, and any other entity in which these persons (or the Recipient) own more than 50% of the voting interests.

6.1-5    Duration of Options. Subject to Section 6.1-3, Section 6.1-6, and Section 6.2-2, options granted under the Plan shall continue in effect for the period fixed by the Board of Directors, except that by its terms no option shall be exercisable after the expiration of 10 years from the date it is granted.

6.1-6    Termination of Employment or Service.

(a)    General Rule. Unless otherwise determined by the Board of Directors, if a Recipient’s employment or service with the Company terminates for any reason other than Total Disability (as provided in Section 6.1-6(b)), death (as provided in Section 6.1-6(c)), or Cause (as provided in Section 6.1-6(d)), such Recipient’s option may be exercised at any time before the expiration date of the option or the expiration of three months after the date of termination, whichever is the shorter period, but only if and to the extent the Recipient was entitled to exercise the option at the date of termination; provided, however, that the Board of Directors may not provide for a post-termination exercise period under this Section 6.1-6(a) that ends before the earlier of (i) the expiration of 30 days after the date of termination, or (ii) the expiration date of the option.

(b)    Termination Because of Total Disability. Unless otherwise determined by the Board of Directors, if a Recipient’s employment or service with the Company terminates because of Total Disability, such Recipient’s option may be exercised at any time before the expiration date of the option or before the date one year after the date of termination, whichever is the shorter period, but only if and to the extent the Recipient was entitled to exercise the option at the date of termination; provided, however, that the Board of Directors may not provide for a post-termination exercise period under this Section 6.1-6(b) that ends before the earlier of (i) the expiration of six months after the date of termination, or (ii) the expiration date of the option. The term “Total Disability” means a medically determinable mental or physical impairment that is expected to result in death or has lasted or is expected to last for a continuous period of one year or more and that causes the Recipient to be unable to perform the Recipient’s duties as an employee, director, officer or consultant of the Employer and to be unable to be engaged in any substantial gainful activity.

(c)    Termination Because of Death. Unless otherwise determined by the Board of Directors, if a Recipient dies while employed by or providing service to the Company, such Recipient’s option may be exercised at any time before the expiration date of the option or before the date one year after the date of death, whichever is the shorter period, but only if and to the extent the Recipient was entitled to exercise the option at the date of death and only by the person or persons to whom the Recipient’s rights under the option shall pass by the Recipient’s will or by the laws of descent and distribution of the state or country of the Recipient’s domicile at the time of death; provided, however, that the Board of Directors may not provide for a post-termination exercise period under this Section 6.1-6(c) that ends before the earlier of (i) the expiration of six months after the date of termination, or (ii) the expiration date of the option.

(d)    Termination for Cause. Unless otherwise determined by the Board of Directors, if the Company terminates a Recipient’s employment or service with the Company for Cause, such Recipient’s option shall immediately terminate and cease to be exercisable, whether or not any portion of it had previously become exercisable. Unless otherwise determined by the Board of Directors, the term “Cause” means Recipient’s (i) willful failure or refusal to perform Recipient’s duties, (ii) gross negligence or intentional misconduct in connection with the performance of Recipient’s duties, or (iii) commission of a crime involving dishonesty, breach of trust, or physical or emotional harm to any person.

(e)    Intentional Misconduct. Unless otherwise determined by the Board of Directors, an option shall immediately terminate and cease to be exercisable if the Recipient engages in any intentional misconduct in connection with the performance of Recipient’s duties including, but not limited to, unauthorized disclosure of any confidential or proprietary information of the Company or breach of any agreement with the Company. If the Board of Directors at any time determines that a Recipient engaged in intentional misconduct before exercising an option, the Company may elect to cancel the exercise of that option by returning to the Recipient any consideration paid on the exercise, and the Recipient shall then surrender to the Company for cancellation the stock certificate representing the shares acquired on that exercise.

(f)    Amendment of Exercise Period Applicable to Termination. The Board of Directors may at any time extend the three-month and one-year exercise periods any length of time not longer than the original expiration date of the option. The Board of Directors may at any time increase the portion of an option that is exercisable, subject to terms and conditions determined by the Board of Directors.

(g)    Failure to Exercise Option. To the extent that the option of any deceased Recipient or any Recipient whose employment or service terminates is not exercised within the applicable period, all further rights to purchase shares pursuant to the option shall cease and terminate.

(h)    Leave of Absence. Absence on leave approved by the Employer or on account of illness or disability shall not be deemed a termination or interruption of employment or service. Unless otherwise determined by the Board of Directors, vesting of options shall continue during a medical, family or military leave of absence, whether paid or unpaid, and vesting of options shall be suspended during any other unpaid leave of absence.

6.1-7    Purchase of Shares.

(a)    Notice of Exercise. Unless the Board of Directors determines otherwise, shares may be acquired pursuant to an option granted under the Plan only upon the Company’s receipt of notice from the Recipient of the Recipient’s binding commitment to purchase shares, specifying the number of shares the Recipient desires to purchase under the option and the date on which the Recipient agrees to complete the transaction, and, if required to comply with the Securities Act of 1933 (the “Securities Act”), containing a representation that it is the Recipient’s intention to acquire the shares for investment and not with a view to distribution. If the Common Stock is publicly traded, the notice of exercise may include an irrevocable direction to a Company designated brokerage firm (on a form prescribed by the Company) to sell some or all of the purchased shares and to deliver some or all of the sale proceeds to the Company in payment of the exercise price and any required tax withholding.

(b)    Payment. Unless the Board of Directors determines otherwise, on or before the date specified for completion of the purchase of shares pursuant to an option exercise, the Recipient must pay the Company the full purchase price of those shares in cash or by check or, with the consent of the Board of Directors, in whole or in part, in Common Stock valued at fair market value, restricted stock or other contingent awards denominated in either stock or cash, promissory notes, and other forms of consideration. The fair market value of Common Stock provided in payment of the purchase price shall be the closing price of the Common Stock on the last trading day before the date payment in Common Stock is made or, if earlier, committed to be made, if the Common Stock is publicly traded, or another value of the Common Stock as specified by the Board of Directors. No shares shall be issued until full payment for the shares has been made, including all amounts owed for tax withholding. With the consent of the Board of Directors, a Recipient may request the Company to apply automatically the shares to be received upon the exercise of a portion of a stock option (even though stock certificates have not yet been issued) to satisfy the purchase price for additional portions of the option.

(c)    Tax Withholding. Each Recipient who has exercised an option shall, immediately upon notification of the amount due, if any, pay to the Company in cash or by check amounts necessary to satisfy any applicable federal, state, and local tax withholding requirements. If additional withholding is or becomes required (as a result of exercise of an option or as a result of disposition of shares acquired pursuant to exercise of an option) beyond any amount deposited before delivery of the certificates, the Recipient shall pay such amount, in cash or by check, to the Company on demand. If the Recipient fails to pay the amount demanded, the Company or the Employer may withhold that amount from other amounts payable to the Recipient, including salary, subject to applicable law. With the consent of the Board of Directors, a Recipient may satisfy this obligation, in whole or in part, by instructing the Company to withhold from the shares to be issued upon exercise or by delivering to the Company other shares of Common Stock; provided, however, that the number of shares so withheld or delivered shall not exceed the amount necessary to pay tax withholding to each jurisdiction calculated at the maximum tax rate applicable to income earned in that jurisdiction.

(d)    Reduction of Reserved Shares. Upon the exercise of an option, the number of shares reserved for issuance under the Plan shall be reduced by the number of shares issued upon exercise of the option, less the number of shares, if any, surrendered in payment for the exercise price or withheld or delivered to satisfy withholding obligations.

6.1-8    Limitation on Grants to Non-Exempt Employees. Unless otherwise determined by the Board of Directors, if an employee of the Company or any parent or subsidiary of the Company is a non-exempt employee subject to the overtime compensation provisions of Section 7 of the Fair Labor Standards Act (the “FLSA”), any option granted to that employee shall not be exercisable until at least six months after the date it is granted; provided, however, that this six-month restriction on exercisability will cease to apply if the employee dies, becomes disabled or retires, there is a change in ownership of the Company, or in other circumstances permitted by regulation, all as prescribed in Section 7(e)(8)(B) of the FLSA.

6.2    Incentive Stock Options. Incentive Stock Options shall be subject to the following additional terms and conditions:

6.2-1    Limitation on Amount of Grants. If the aggregate fair market value of stock (determined as of the date the option is granted) for which Incentive Stock Options granted under this Plan (and any other stock incentive plan of the Company or its parent or subsidiary corporations, as defined in subsections 424(e) and 424(f) of the Code) are exercisable for the first time by an employee during any calendar year exceeds $100,000.00, the portion of the option or options not exceeding $100,000.00, to the extent of whole shares, will be treated as an Incentive Stock Option, and the remaining portion of the option or options will be treated as a Non-Statutory Stock Option. The preceding sentence will be applied by taking options into account in the order in which they were granted. If, under the $100,000.00 limitation, a portion of an option is treated as an Incentive Stock Option and the remaining portion of the option is treated as a Non-Statutory Stock Option, unless the Recipient designates otherwise at the time of exercise, the Recipient’s exercise of all or a portion of the option will be treated as the exercise of the Incentive Stock Option portion of the option to the full extent permitted under the $100,000.00 limitation. If a Recipient exercises an option that is treated as in part an Incentive Stock Option and in part a Non-Statutory Stock Option, the Company will designate the portion of the stock acquired pursuant to the exercise of the Incentive Stock Option portion as Incentive Stock Option stock by issuing a separate certificate for that portion of the stock and identifying the certificate as Incentive Stock Option stock in its stock records.

6.2-2    Limitations on Grants to 10% Stockholders. An Incentive Stock Option may be granted under the Plan to an employee possessing more than 10% of the total combined voting power of all classes of stock of the Company or any parent or subsidiary (as defined in subsections 424(e) and 424(f) of the Code) only if the exercise price is at least 110% of the fair market value, as described in Section 6.1-2, of the Common Stock subject to the option on the date it is granted and the option by its terms is not exercisable after the expiration of five years from the date it is granted.

6.2-3    Early Dispositions. If within two years after an Incentive Stock Option is granted or within one year after an Incentive Stock Option is exercised, the Recipient sells or otherwise disposes of Common Stock acquired on exercise of the Option, the Recipient shall within 30 days of the sale or disposition notify the Company in writing of (i) the date of the sale or disposition, (ii) the amount realized on the sale or disposition, and (iii) the nature of the disposition (e.g., sale, gift, etc.).

7.    Stock Awards, Including Restricted Stock and Restricted Stock Units.

7.1    General Terms. The Board of Directors may issue shares under the Plan as Stock Awards for any consideration determined by the Board of Directors, including promissory notes and services and including no consideration or such minimum consideration as may be required by law. Stock Awards shall be subject to the terms, conditions, and restrictions determined by the Board of Directors. The restrictions may include restrictions concerning transferability, repurchase by the Company, and forfeiture of the shares issued, together with any other restrictions determined by the Board of Directors. Stock Awards subject to restrictions may be either restricted stock awards under which shares are issued immediately upon grant subject to forfeiture if vesting conditions are not satisfied, or restricted stock unit awards under which shares are not issued until after vesting conditions are satisfied. All Stock Awards issued pursuant to this Section 7 shall be subject to a stock award agreement, which shall be executed by the Company and the Recipient of the Stock Award. The stock award agreement may contain any terms, conditions, restrictions, representations, and warranties required by the Board of Directors. The certificates representing the shares shall bear any legends required by the Board of Directors.

7.2    Duration of Restricted Stock Units. No shares shall be issuable under a restricted stock unit award or similar Stock Award after the expiration of 10 years from the date it is granted.

7.3    Nontransferability. All restricted stock unit awards granted under the Plan and any other rights to acquire shares under this Section 7 shall by their terms be nonassignable and nontransferable by the Recipient, either voluntarily or by operation of law, except by will or by the laws of descent and distribution of the state or country of the Recipient’s domicile at the time of death; provided, however, that the Board of Directors may permit any such award or right to be transferable by gift or domestic relations order to a Family Member of the Recipient, as such term is defined in Section 6.1-4.

7.4    Tax Withholding. The Company may require any Recipient of a Stock Award to pay to the Company in cash or by check upon demand amounts necessary to satisfy any applicable federal, state or local tax withholding requirements. If the Recipient fails to pay the amount demanded, the Company or the Employer may withhold that amount from other amounts payable to the Recipient, including salary, subject to applicable law. With the consent of the Board of Directors, a Recipient may satisfy this obligation, in whole or in part, by instructing the Company to withhold from any shares to be issued or by delivering to the Company other shares of Common Stock; provided, however, that the number of shares so withheld or delivered shall not exceed the amount necessary to pay tax withholding to each jurisdiction calculated at the maximum tax rate applicable to income earned in that jurisdiction.

7.5    Reduction in Reserved Shares. Upon the issuance of shares pursuant to a Stock Award, the number of shares reserved for issuance under the Plan shall be reduced by the number of shares issued, less the number of shares withheld or delivered to satisfy withholding obligations.

8.    Changes in Capital Structure.

8.1    Stock Splits, Stock Dividends, Etc. If the outstanding Common Stock is hereafter increased or decreased or changed into or exchanged for a different number or kind of shares or other securities of the Company by reason of any stock split, reverse stock split, combination of shares, dividend payable in shares, recapitalization, reclassification or other distribution of Common Stock to stockholders generally without the receipt of consideration by the Company, appropriate adjustment shall be made by the Board of Directors in the number and kind of shares available for grants under the Plan and in all other share amounts set forth in the Plan. In addition, the Board of Directors shall make appropriate adjustment in (i) the number and kind of shares subject to outstanding awards, and (ii) the exercise price per share of outstanding options, so that the Recipient’s proportionate interest before and after the occurrence of the event is maintained. Notwithstanding the foregoing, the Board of Directors shall have no obligation to effect any adjustment that would or might result in the issuance of fractional shares, and any fractional shares resulting from any adjustment may be disregarded or provided for in any manner determined by the Board of Directors. Any such adjustments made by the Board of Directors shall be conclusive.

8.2    Mergers, Reorganizations, Etc. Unless otherwise determined by the Board of Directors, in the event of a merger, consolidation, plan of exchange, acquisition of property or stock, split-up, split-off, spin-off, reorganization or liquidation to which the Company is a party or any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or substantially all, of the assets of the Company (each, a “Transaction”), the Board of Directors shall, in its sole discretion and to the extent possible under the structure of the Transaction, with respect to each outstanding option and Stock Award under the Plan, select one of the following alternatives:

8.2-1    The outstanding option or Stock Award shall remain in effect in accordance with its terms.

8.2-2    The outstanding option or Stock Award shall be converted into an option or Stock Award to acquire stock in one (1) or more of the corporations, including the Company, that are the surviving or acquiring corporations in the Transaction. The amount, type of securities subject thereto and exercise or purchase price of the converted option or Stock Award shall be determined by the Board of Directors, taking into account the relative values of the companies involved in the Transaction and the exchange rate, if any, used in determining shares of the surviving corporation(s) to be held by holders of shares of the Company following the Transaction. Unless otherwise determined by the Board of Directors, the converted option or Stock Award shall be vested only to the extent that the pre-conversion option or Stock Award was vested.

8.2-3    The Board of Directors shall provide a period of 30 days or less before the completion of the Transaction during which the outstanding option may be exercised to the extent then exercisable, and upon the expiration of that period, the unexercised portion of the option shall immediately terminate. The Board of Directors may, in its sole discretion, accelerate the exercisability of the option so that it is exercisable in full during that period. The Board of Directors also may, in its sole discretion, accelerate the vesting of any Stock Award or provide that an unvested Stock Award shall terminate upon completion of the Transaction.

8.2-4    The outstanding option or Stock Award shall be cancelled and converted into the right to receive payments with respect to each share subject to the option or Stock Award equal to the excess of the payments received by holders of Common Stock with respect to each share of Common Stock in the Transaction over the exercise or purchase price, if any. Payments with respect to the option or Stock Award shall be in the same form (e.g., cash, stock, other securities or property) as payments to holders of Common Stock and, once payments to holders of Common Stock per share exceed the exercise or purchase price, if any, shall be paid to the Recipient at the same time as payments to holders of Common Stock; provided, however, that to the extent that the option or Stock Award was subject to vesting based on the Recipient’s continuing service, payments to the Recipient may be subject to vesting in accordance with the same vesting schedule and payments may be delayed until vested; and provided further, that no such payments shall be made more than five years after completion of the Transaction. The value of payments in any form other than cash shall be the fair market value of such payments as determined by the Board of Directors. Payments to holders of Common Stock that are withheld for an escrow fund, holdback or similar arrangement shall not be deemed to have been paid to the holders until released and actually paid.

8.2-5    If this Section 8.2-5 is specifically cited in an agreement for an outstanding option or Stock Award, or in a written consent or the minutes of a meeting of the Board of Directors pursuant to which the option or Stock Award was granted, then such outstanding option or Stock Award may not be terminated in connection with a Transaction in any manner that has an adverse effect on the Recipient without the Recipient’s prior written consent, which such written consent must specifically reference this Section 8.2-5. Absent such written consent, the option or Stock Award will vest or become exercisable according to its express terms (including any acceleration of vesting or exercisability on or in connection with a Transaction), notwithstanding the Transaction’s effect on other options or Stock Awards granted under the Plan.

8.3    Dissolution of the Company. In the event of the dissolution of the Company, options and Stock Awards shall be treated in accordance with Section 8.2-3.

8.4    Rights Issued by Another Corporation. The Board of Directors may also grant options and Stock Awards under the Plan with terms, conditions, and provisions that vary from those specified in the Plan, provided that any such awards are granted in substitution for, or in connection with the assumption of, existing options and Stock Awards granted by another corporation and assumed or otherwise agreed to be provided for by the Company pursuant to or by reason of a Transaction.

9.    Amendment of the Plan. The Board of Directors may at any time modify or amend the Plan in any respect; provided, however, that any modification or amendment of the Plan shall be subject to stockholder approval to the extent required under applicable law or the rules of any stock exchange on which the Company’s shares may then be listed. Notwithstanding the foregoing, except as provided in Section 8, no change in an award already granted shall be made without the written consent of the holder of the award if the change would adversely affect the holder.

10.    Approvals. The Company’s obligations under the Plan are subject to the approval of state and federal authorities or agencies with jurisdiction in the matter. The Company will use its best efforts to take steps required by state or federal law or applicable regulations, including rules and regulations of the Securities and Exchange Commission and any stock exchange on which the Company’s shares may then be listed, in connection with the grants under the Plan. Notwithstanding the foregoing, the Company shall not be obligated to issue or deliver Common Stock under the Plan if such issuance or delivery would, in the judgment of the Board of Directors, violate state or federal securities laws.

11.    Employment and Service Rights. Nothing in the Plan or any award pursuant to the Plan shall (i) confer upon any employee any right to be continued in the employment of an Employer or interfere in any way with the Employer’s right to terminate the employee’s employment at will at any time, for any reason, with or without cause, or to decrease the employee’s compensation or benefits, or (ii) confer upon any person engaged by an Employer any right to be retained or employed by the Employer or to the continuation, extension, renewal or modification of any compensation, contract or arrangement with or by the Employer.

12.    Rights as a Stockholder. The Recipient of any award under the Plan shall have no rights as a stockholder with respect to any shares of Common Stock until the date the Recipient becomes the holder of record of those shares. Except as otherwise expressly provided in the Plan or as determined by the Board of Directors, no adjustment shall be made for dividends or other rights for which the record date occurs before the date the Recipient becomes the holder of record.

13.    500 or More Optionholders/Company Assets in Excess of $10,000,000.00. If (i) the aggregate of the number of holders of options granted under the Plan and the number of holders of all other outstanding compensatory options to purchase shares of Common Stock equals or exceeds 500, and (ii) the assets of the Company at the end of the Company’s most recently completed fiscal year exceed $10,000,000.00, then the following shall apply during any period when the Company is relying on the exemption provided by Rule 12h-1(f) (“Rule 12h-1(f)”) under the Securities Exchange Act of 1934 (the “Exchange Act”):

13.1    Transfer Restrictions. The options granted under the Plan (including, prior to exercise, the shares underlying such options) may not be pledged, hypothecated or otherwise transferred (including through any short position, any “put equivalent position” as defined in Rule 16a-1(h) under the Exchange Act or any “call equivalent position” as defined in Rule 16a-1(b) under the Exchange Act), except for any transfer (i) permitted by Rule 701(c) under the Securities Act, (ii) to an executor or guardian of the Recipient upon the death or disability of the Recipient, or (iii) otherwise permitted by Rule 12h-1(f) (such permitted transferees, collectively, the “Permitted Transferees”); provided, however, that any Permitted Transferees may not further transfer the options; and provided further, that the foregoing restrictions are in addition to and not in lieu of the restrictions on transfer set forth in Section 6.1-4.

13.2    Required Information. So long as shall be required by applicable law, the Company shall provide to holders of options in accordance with Rule 12h-1(f) the information described in Rules 701(e)(3), (4) and (5) under the Securities Act every six months with the financial statements being not more than 180 days old; provided, however, that the Company may condition the provision of such information upon the Recipient’s agreement to keep the information confidential.

Amended Plan Adopted by the Board of Directors: March __, 2025

Amended Plan Approved by Stockholders: May __, 2025.

ADDENDUM A

Clene Inc.

AMENDED 2020 STOCK PLAN

(Provisions for California Participants)

With respect to awards granted to California residents in reliance on Section 25102(o) of the California Corporations Code (“California Participants”) prior to the date, if ever, on which the Common Stock becomes a Listed Security (as defined below) and/or the Company is subject to the reporting requirements of the Exchange Act, and only to the extent required by applicable law, the following provisions shall apply notwithstanding anything in the Plan or an award agreement to the contrary:

1.    With respect to options, the exercise period shall be no more than 120 months from the date the option is granted.

2.    With respect to options, the option shall be non-transferable other than by will, by the laws of descent and distribution, or, if and to the extent permitted under the award agreement, to a revocable trust or as permitted by Rule 701 of the Securities Act.

3.    With respect to options, unless employment or service is terminated for “cause” as defined by applicable law, the terms of the Plan or award agreement, or a contract of employment or service, the right to exercise the option in the event of termination of employment or service, to the extent that the optionee is entitled to exercise on the date employment or service terminates, will continue until the earlier of the option expiration date or:

(a)    At least six months from the date of termination if termination was caused by death or Permanent Disability.

(b)    At least 30 days from the date of termination if termination was caused by other than death or Permanent Disability.

“Permanent Disability” for purposes of this Addendum shall mean the inability of the optionee, in the opinion of a qualified physician acceptable to the Company, to perform the major duties of the optionee’s position with the Company because of the sickness or injury of the optionee.

4.    The award must be granted within 10 years from the date the Plan is adopted or the date the Plan is approved by the Company’s security holders entitled to vote, whichever is earlier.

5.    Security holders representing a majority of the Company’s outstanding securities entitled to vote must approve the Plan by the later of (a) within 12 months before or after the date the Plan is adopted, or (b) prior to the granting of any award to a California Participant.   Any option exercised or award granted before security holder approval is obtained must be rescinded if security holder approval is not obtained in the manner described in the preceding sentence. Such securities shall not be counted in determining whether such approval is obtained.

6.    Notwithstanding anything to the contrary in Section 8.1 of the Plan, the Board of Directors shall in any event make such adjustments as may be required by Section 25102(o) of the California Corporations Code.

7.    The Company will provide financial statements to each award recipient annually during the period such individual has one or more awards outstanding, or as otherwise required under Section 260.140.46 of Title 10 of the California Code of Regulations. Notwithstanding the foregoing, the Company will not be required to provide such financial statements to award recipients when (a) issuance is limited to key persons whose duties in connection with the Company assure them access to equivalent information, or (b) the Plan complies with all conditions of Rule 701 of the Securities Act; provided that for purposes of determining such compliance, any registered domestic partner shall be considered a “family member” as that term is defined in Rule 701.

8.    For purposes of this Addendum, “Listed Security” means any security of the Company that is listed or approved for listing on a national securities exchange or designated or approved for designation as a national market system security on an interdealer quotation system by the Financial Industry Regulatory Authority (or any successor thereto).

9.    This Addendum shall no longer be part of the Plan at such time as the Company’s Common Stock becomes a Listed Security and/or the Company is subject to the reporting requirements of the Exchange Act.