Document:

Exhibit 10.2

    

     

    VOTING AGREEMENT

     

    This VOTING AGREEMENT (this “Agreement”) is entered into as of June     , 2020, among Ocuphire Pharma, Inc., a Delaware corporation (the “Company”), Rexahn Pharmaceuticals, Inc., a Delaware corporation (“Parent”), and the undersigned stockholder (the “Stockholder”) of the Company.

     

    WHEREAS, as of the date hereof, the Stockholder is the sole record and beneficial owner of and has the sole power to vote (or to direct the voting of) the number of shares of common stock, par value
      $0.0001 per share (the “Common Stock”) of the Company, set forth opposite the Stockholder’s name on Schedule I hereto (such Common Stock, together
      with any other shares of the Company (“Shares”) the voting power of which is acquired by such Stockholder during the Voting Period (as defined below), are collectively referred to herein as
      the “Subject Shares”);

     

    WHEREAS, the Company, Parent, and Razor Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent (“Merger Sub”),
      are concurrently entering into an Agreement and Plan of Merger and Reorganization, dated on or about the date hereof (as amended from time to time, the “Merger Agreement”), pursuant to which
      Merger Sub shall be merged with and into the Company, with the Company continuing as the surviving corporation and as a wholly owned subsidiary of Parent (the “Merger”);

     

    WHEREAS, the adoption of the Merger Agreement and the transactions contemplated thereby requires the written consent or affirmative vote of the holders of a majority of the shares of the Common Stock
      outstanding; and

     

    WHEREAS, as an inducement to the Company’s and Parent’s willingness to enter into the Merger Agreement and consummate the transactions contemplated thereby, transactions from which the Stockholder
      believes it will derive substantial benefits through its ownership interest in the Company, the Stockholder is entering into this Agreement.

     

    NOW, THEREFORE, in consideration of the foregoing and the respective representations, warranties, covenants and agreements set forth herein, the parties agree as follows:

     

    ARTICLE I

    DEFINITIONS

     

    SECTION 1.1    Capitalized Terms. For purposes of this Agreement, capitalized terms used and not defined herein shall have the respective
      meanings ascribed to them in the Merger Agreement.

     

    ARTICLE II

     VOTING AGREEMENT AND IRREVOCABLE PROXY

     

    SECTION 2.1      Agreement to Vote.

     

    (a)       The Stockholder hereby agrees that, within five (5) Business Days after the Registration Statement becomes effective, the Stockholder shall execute and deliver, or cause to be executed and
      delivered, to the Company, a written consent (a “Written Consent”) approving the Stockholder Approval Matters (as defined below). The Written Consent shall be coupled with an interest and
      shall be irrevocable. As used herein, the term “Expiration Time” shall mean the earliest to occur of (i) the Effective Time and (ii) the date and time of the valid termination of the Merger
      Agreement in accordance with its terms, and the term “Voting Period” shall mean such period of time between the date hereof and the Expiration Time.

     

    
      
        

    

    
    (b)          The Stockholder hereby agrees that, during the Voting Period, and at any duly called meeting of the stockholders of the Company (or any adjournment or postponement thereof), or in any
      other circumstances (including action by written consent of stockholders in lieu of a meeting) upon which a vote, adoption or other approval or consent with respect to the adoption of the Merger Agreement or the approval of the Merger and any of the
      transactions contemplated thereby is sought, the Stockholder shall, if a meeting is held, appear at the meeting, in person or by proxy, and shall provide a written consent or vote (or cause to be voted), in person or by proxy, all of the Subject
      Shares, in each case (i) in favor of (A) any proposal to adopt and approve or reapprove the Merger Agreement and the transactions contemplated thereby, including without limitation (1) adoption and approval of the Merger Agreement and the
      Contemplated Transactions, (2) adoption and approval of an amendment of the Company’s certificate of incorporation to increase the authorized shares of the Company’s Common Stock in the form of Exhibit A
      hereto, (3) acknowledgment that the approval given thereby is irrevocable and that the Stockholder is aware of the Stockholder’s rights to demand appraisal for its shares pursuant to Section 262 of the DGCL, a true and correct copy of which will be
      attached thereto, and that the Stockholder has received and read a copy of Section 262 of the DGCL, (4) acknowledgment that by the Stockholder’s approval of the Merger the Stockholder is not entitled to appraisal rights with respect to the Subject
      Shares in connection with the Merger and thereby waives any rights to receive payment of the fair value of the Stockholder’s capital stock under the DGCL, and (B) waiving any notice that may have been or may be required relating to the Merger or any
      of the other transactions contemplated by the Merger Agreement (the “Stockholder Approval Matters”), and (ii) against (A) any Acquisition Proposal and any action in furtherance of any such
      Acquisition Proposal and (B) any action, proposal, transaction or agreement that, to the knowledge of the Stockholder, would reasonably be expected to (x) result in a material breach of any covenant, representation or warranty or any other obligation
      or agreement of the Stockholder under this Agreement or the Company under the Merger Agreement or (y) prevent or materially delay or adversely affect the consummation of the Contemplated Transactions, including the Merger, or change in any manner the
      voting rights of any class of Shares.

     

    SECTION 2.2    Grant of Irrevocable Proxy. The Stockholder hereby appoints the Company and any designee of the Company, and each of them
      individually, as the Stockholder’s proxy, with full power of substitution and resubstitution, to vote, including by executing written consents, during the Voting Period with respect to any and all of the Subject Shares on the matters and in the
      manner specified in Section 2.1; provided, however, that the Stockholder’s grant of the proxy contemplated by this Section 2.2 shall be effective with respect to Section 2.1 if, and only if, the Stockholder does not deliver the Written Consent in accordance with Section 2.1(a) after being given a reasonable opportunity to do so,
      or attempts to vote or consent in a manner inconsistent with the provisions of Section 2.1(b). The Stockholder shall take all further action or execute such other instruments as may be necessary to effectuate
      the intent of any such proxy. The Stockholder affirms that the irrevocable proxy given by it hereby with respect to the Merger Agreement and the transactions contemplated thereby is given to the Company by the Stockholder to secure the performance of
      the obligations of the Stockholder under this Agreement. It is agreed that the Company (and its officers on behalf of the Company) will use the irrevocable proxy that is granted by the Stockholder hereby only in accordance with applicable Laws and
      that, to the extent the Company (and its officers on behalf of the Company) uses such irrevocable proxy, it will only vote (or sign written consents in respect of) the Subject Shares subject to such irrevocable proxy with respect to the matters
      specified in, and in accordance with the provisions of, Section 2.1.

     

    SECTION 2.3      Nature of Irrevocable Proxy. The proxy granted pursuant to Section 2.2 to the
      Company by the Stockholder shall be irrevocable during the term of this Agreement, shall be deemed to be coupled with an interest sufficient in law to support an irrevocable proxy and shall revoke any and all prior proxies or powers of attorney
      granted by the Stockholder and no subsequent proxy or power of attorney shall be given or written consent executed (and if given or executed, shall not be effective) by the Stockholder with respect thereto. The proxy that may be granted hereunder
      shall terminate upon the termination of this Agreement, but shall survive the death or incapacity of the Stockholder and any obligation of the Stockholder under this Agreement shall be binding upon the heirs, personal representatives and successors
      of the Stockholder.

     

    ARTICLE III

    COVENANTS

     

    SECTION 3.1      Subject Shares.

     

    (a)           The Stockholder agrees that (i) from the date hereof until the Effective Time, it shall not, and shall not commit or agree to, without the prior written consent of Parent and the
      Company, directly or indirectly, whether by merger, consolidation or otherwise, offer for sale, sell (including short sales), transfer, tender, pledge, encumber, assign or otherwise dispose of (including by gift or by operation of law) (collectively,
      a “Transfer”), or enter into any contract, option, derivative, hedging or other agreement or arrangement or understanding (including any profit-sharing arrangement) with respect to, or
      consent to or permit, a Transfer of, any or all of the Subject Shares or any interest therein; and (ii) during the Voting Period, it shall not, and shall not commit or agree to, without the prior written consent of Parent and the Company, (A) grant
      any proxies or powers of attorney with respect to any or all of the Subject Shares or agree to vote (or sign written consents in respect of) the Subject Shares on any matter or divest itself of any voting rights in the Subject Shares, or (B) take any
      action that would have the effect of preventing or disabling the Stockholder from performing its obligations under this Agreement. Notwithstanding the foregoing, the Stockholder may, at any time, Transfer its Subject Shares (1) by will or other
      testamentary document or by intestacy, (2) to any investment fund or other entity controlled or managed by the Stockholder, (3) to any member of the Stockholder’s immediate family or (4) to any trust for the direct or indirect benefit of the
      Stockholder or the immediate family of the Stockholder or otherwise for estate planning purposes; provided, that the applicable transferee shall have executed and delivered a voting agreement substantially
      identical to the Agreement. The Stockholder agrees that any Transfer of Subject Shares not permitted hereby shall be null and void and that any such prohibited Transfer shall be enjoined. If any voluntary or involuntary transfer of any Subject Shares
      covered hereby shall occur (including, but not limited to, a sale by the Stockholder’s trustee in bankruptcy, or a sale to a purchaser at any creditor’s or court sale), the transferee (which term, as used herein, shall include any and all transferees
      and subsequent transferees of the initial transferee) shall take and hold such Subject Shares subject to all of the restrictions, liabilities and rights under this Agreement, which shall continue in full force and effect.

     

    
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    (b)          In the event of a stock dividend or distribution, or any change in the Subject Shares by reason of any stock dividend or distribution, split-up, recapitalization, combination,
      conversion, exchange of shares or the like, the term “Subject Shares” shall be deemed to refer to and include the Subject Shares as well as all such stock dividends and distributions and any securities into which or for which any or all of the
      Subject Shares may be changed or exchanged or which are received in such transaction. The Stockholder further agrees that, in the event Stockholder purchases or otherwise acquires beneficial or record ownership of or an interest in, or acquires the
      right to vote or share in the voting of, any additional Shares, in each case after the execution of this Agreement and prior to the Expiration Time, the Stockholder shall deliver promptly to the Company and Parent written notice of such event, which
      notice shall state the number of additional Shares so acquired. The Stockholder agrees that any such additional Shares shall constitute Subject Shares for all purposes of this Agreement and shall be subject to the terms of this Agreement, including
      all covenants, agreements, obligations, representations and warranties set forth herein as if those additional Shares were owned by the Stockholder on the date of this Agreement.

     

    SECTION 3.2     Stockholder’s Capacity. All agreements and understandings made herein shall be made solely in the Stockholder’s capacity as a
      holder of the Subject Shares and not in any other capacity.

     

    SECTION 3.3     Other Offers. Except to the extent the Company is permitted to take such action pursuant to the Merger Agreement, the
      Stockholder (in the Stockholder’s capacity as such) shall not, and shall instruct and cause its Representatives not to, take any of the following actions: (a) solicit, initiate, knowingly encourage or knowingly facilitate an Acquisition Proposal, (b)
      furnish any non-public information regarding the Company to any Person in connection with or in response to an Acquisition Proposal, (c) engage in, enter into, continue or otherwise participate in any discussions or negotiations with any Person with
      respect to, or otherwise knowingly cooperate in any way with any Person (or any representative thereof) with respect to, any Acquisition Proposal, (d) approve, endorse or recommend or propose to approve, endorse or recommend, any Acquisition Proposal
      or (e) enter into any letter of intent or similar document or any Contract contemplating, approving, endorsing or recommending or proposing to approve, endorse or recommend, any Acquisition Transaction or accepting any Acquisition Proposal; provided, however, that none of the foregoing restrictions shall apply to the Stockholder’s and its Representatives’ interactions with Parent, Merger Sub, the Company and
      their respective subsidiaries and representatives. Without limiting the foregoing, it is understood that any violation of the foregoing restrictions by any Representatives of the Stockholder shall be deemed to be a breach of this Section 3.3 by the Stockholder. The Stockholder shall, and shall use reasonable best efforts to cause its Representatives to, immediately cease any and all existing discussions or negotiations with any Persons
      conducted heretofore with respect to any Acquisition Proposal.

     

    SECTION 3.4     Communications. During the Voting Period, the Stockholder shall not, and shall use its reasonable best efforts to cause its
      Representatives, if any, not to, directly or indirectly, make any press release, public announcement or other public communication that criticizes or disparages this Agreement or the Merger Agreement or any of the transactions contemplated hereby and
      thereby, without the prior written consent of Parent and the Company, provided that the foregoing shall not limit or affect any actions taken by the Stockholder (or any affiliated officer or director of
      Stockholder) that would be permitted to be taken by Stockholder pursuant to the Merger Agreement. The Stockholder hereby (a) consents to and authorizes the publication and disclosure by Parent, Merger Sub and the Company (including in any publicly
      filed documents relating to the Merger or any transaction contemplated by the Merger Agreement) of: (i) the Stockholder’s identity; (ii) the Stockholder’s beneficial ownership of the Subject Shares; (iii) this Agreement; and (iv) the nature of the
      Stockholder’s commitments, arrangements and understandings under this Agreement, and any other information that Parent, Merger Sub or the Company determines to be necessary in any SEC disclosure document in connection with the Merger or any
      transactions contemplated by the Merger Agreement and (b) agrees as promptly as practicable to notify Parent, Merger Sub and the Company of any required corrections with respect to any written information supplied by the Stockholder specifically for
      use in any such disclosure document.

     

    
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    SECTION 3.5      Voting Trusts. The Stockholder agrees that it will not, nor will it permit any entity under its control to, deposit any of its
      Subject Shares in a voting trust or subject any of its Subject Shares to any arrangement with respect to the voting of such Subject Shares other than as provided herein.

     

    SECTION 3.6      Waiver of Appraisal Rights. The Stockholder hereby irrevocably and unconditionally waives, and agrees not to assert, exercise
      or perfect (or attempt to exercise, assert or perfect) any rights of appraisal or rights to dissent from the Merger or quasi-appraisal rights that it may at any time have under applicable Laws, including Section 262 of the DGCL. The Stockholder
      agrees not to commence, join in, facilitate, assist or encourage, and agrees to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Parent, Merger Sub, the Company or any
      of their respective successors, directors or officers, (a) challenging the validity, binding nature or enforceability of, or seeking to enjoin the operation of, this Agreement or the Merger Agreement, or (b) alleging a breach of any fiduciary duty of
      any Person in connection with the evaluation, negotiation, entry into or consummation of the Merger Agreement.

     

    ARTICLE IV

    REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER

     

    The Stockholder hereby represents and warrants to the Company as follows:

     

    SECTION 4.1      Due Authorization, etc. The Stockholder is a natural person, corporation, limited partnership or limited liability company. If
      the Stockholder is a corporation, limited partnership or limited liability company, Stockholder is an entity duly organized, validly existing and in good standing under the laws of the jurisdiction in which it is incorporated, organized or
      constituted. The Stockholder has all necessary power and authority to execute and deliver this Agreement, perform the Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this
      Agreement, the performance of the Stockholder’s obligations hereunder and the consummation of the transactions contemplated hereby by the Stockholder have been duly authorized by all necessary action on the part of the Stockholder and no other
      proceedings on the part of the Stockholder are necessary to authorize this Agreement, or to consummate the transactions contemplated hereby. This Agreement has been duly executed and delivered by the Stockholder and (assuming the due authorization,
      execution and delivery by Parent and the Company) constitutes a valid and binding obligation of the Stockholder, enforceable against the Stockholder in accordance with its terms, except to the extent enforcement is limited by bankruptcy, insolvency,
      fraudulent transfer, reorganization, moratorium and similar Laws of general applicability relating to or affecting creditors’ rights and by general equitable principles.

     

    SECTION 4.2     Ownership of Shares. Schedule I hereto sets forth opposite the Stockholder’s name the
      Shares over which the Stockholder has sole record and beneficial ownership as of the date hereof. As of the date hereof, the Stockholder is the lawful owner of the Shares denoted as being owned by the Stockholder on Schedule
        I hereto, has the sole power to vote or cause to be voted such Shares and has the sole power to dispose of or cause to be disposed such Shares (other than, if Stockholder is a partnership or a limited liability company, the rights and
      interest of Persons that own partnership interests or units in Stockholder under the partnership agreement or operating agreement governing Stockholder and applicable partnership or limited liability company law, or if Stockholder is a married
      individual and resides in a state with community property laws, the community property interest of his or her spouse to the extent applicable under such community property laws, which spouse hereby consents to this Agreement by executing the spousal
      consent attached hereto). The Stockholder has, and will at all times up until the Expiration Time have, good and valid title to the Shares denoted as being owned by the Stockholder on Schedule I hereto, free
      and clear of any and all pledges, mortgages, liens, charges, proxies, voting agreements, encumbrances, adverse claims, options, security interests and demands of any nature or kind whatsoever, other than (a) those created by this Agreement, or (b)
      those existing under applicable securities laws. Without limiting the generality of the foregoing, no Person has any contractual or other right or obligation to purchase or otherwise acquire any of the Shares, and no Shares are subject to any proxy,
      voting trust or other agreement or arrangement with respect to the voting of the Shares except as provided hereunder.

     

    
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    SECTION 4.3      No Conflicts. (a) No filing with any Governmental Body, and no authorization, consent or approval of any other Person is
      necessary for the execution of this Agreement by the Stockholder and (b) none of the execution and delivery of this Agreement by the Stockholder, the performance of the Stockholder’s obligations hereunder, the consummation by the Stockholder of the
      transactions contemplated hereby or compliance by the Stockholder with any of the provisions hereof shall (i) conflict with or result in any breach of the organizational documents of the Stockholder, (ii) result in, or give rise to, a violation or
      breach of or a default under any of the terms of any material contract, understanding, agreement or other instrument or obligation to which the Stockholder is a party or by which the Stockholder or any of the Subject Shares or its assets may be bound
      or (iii) violate any applicable order, writ, injunction, decree, judgment, statute, rule or regulation, except for any of the foregoing as would not reasonably be expected to impair the Stockholder’s ability to perform its obligations under this
      Agreement.

     

    SECTION 4.4      Finder’s Fees. No investment banker, broker, finder or other intermediary is entitled, whether directly or indirectly, to a
      fee, commission or other benefit from Parent, Merger Sub or the Company in respect of this Agreement based upon any Contract made by or on behalf of the Stockholder, solely in the Stockholder’s capacity as a stockholder of the Company.

     

    SECTION 4.5     Reliance. The Stockholder has had the opportunity to review the Merger Agreement and this Agreement with counsel of the
      Stockholder’s own choosing. The Stockholder understands and acknowledges that the Company is entering into the Merger Agreement in reliance upon the Stockholder’s execution, delivery and performance of this Agreement.

     

    SECTION 4.6     No Litigation. As of the date of this Agreement, there is no Legal Proceeding pending or, to the knowledge of the Stockholder,
      threatened against the Stockholder that would reasonably be expected to impair the ability of the Stockholder to perform its obligations hereunder or consummate the transactions contemplated hereby.

     

    ARTICLE V

    TERMINATION

     

    SECTION 5.1     Termination. This Agreement shall automatically terminate, and none of Parent, the Company or the Stockholder shall have any
      rights or obligations hereunder and this Agreement shall become null and void and have no effect upon the earliest to occur of: (a) the Effective Time; and (b) the valid termination of the Merger Agreement in accordance with its terms. The parties
      acknowledge that upon termination of this Agreement as permitted under and in accordance with the terms of this Agreement, Stockholder shall have no right to recover any claim with respect to any losses suffered by Stockholder in connection with such
      termination. Notwithstanding anything to the contrary herein, (i) nothing set forth in this Section 5.1 shall relieve Stockholder from liability for any breach of this Agreement prior to termination hereof,
      and (ii) the provisions of this Article V and of Article VI shall survive the termination of this Agreement.

     

    ARTICLE VI

    MISCELLANEOUS

     

    SECTION 6.1      Further Actions. Subject to the terms and conditions set forth in this Agreement, the Stockholder agrees to take any all actions and
      to do all things reasonably necessary to effectuate this Agreement. If the Stockholder is a married individual, his or her spouse shall deliver the spousal consent attached hereto unless such Stockholder can demonstrate to Parent’s and the Company’s
      reasonable satisfaction that his or her spouse does not have any community property interests in the Subject Shares.

     

    

    
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    SECTION 6.2     Fees and Expenses. Except as otherwise specifically provided herein, each party shall bear its own fees and expenses in connection
      with this Agreement and the transactions contemplated hereby.

     

    SECTION 6.3     Amendments, Waivers, etc. This Agreement may not be amended except by an instrument in writing signed by all the parties hereto and
      specifically referencing this Agreement. The failure of any party to assert any rights or remedies shall not constitute a waiver of such rights or remedies.

     

    SECTION 6.4    Notices. Any notice, request, instruction or other document required to be given hereunder shall be sufficient if in writing,
      and sent by confirmed electronic mail transmission of a “portable document format” (“.pdf”) attachment (provided that any notice received by electronic mail transmission or otherwise at the addressee’s
      location on any business day after 5:00 p.m. (addressee’s local time) shall be deemed to have been received at 9:00 a.m. (addressee’s local time) on the next business day), by reliable overnight delivery service (with proof of service), or hand
      delivery, addressed as follows:

     

    If to the Company, to

     

    Ocuphire Pharma, Inc.

    37000 Grand River Ave, Suite 120

    Farmington Hills, MI 48335

    Attn: Mina Sooch

    Email: msooch@ocuphire.com

     

    with a copy to (which shall not constitute notice):

     

    Honigman LLP

    650 Trade Centre Way, Suite 2000

    Kalamazoo, MI 49002

    Attention: Phillip D. Torrence

    Email: ptorrence@honigman.com

     

    If to Parent, to

     

    Rexahn Pharmaceuticals, Inc.

    15245 Shady Grove Road, Suite 455

    Rockville, MD 20850

    Attn: Douglas J. Swirsky

    Email: swirskyd@rexahn.com

     

    with a copy to (which shall not constitute notice):

     

    Hogan Lovells US LLP

    100 International Drive, Suite 2000

    Baltimore, MD 21202

    Attention: Asher M. Rubin; William I. Intner

    Email: asher.rubin@hoganlovells.com; william.intner@hoganlovells.com

     

    If to the Stockholder, to the address or electronic mail address set forth on the signature pages hereto or to such other Person or address as any party shall specify by written notice so given.

     

    SECTION 6.5     Interpretation; Construction. Headings of the Articles and Sections of this Agreement are for convenience of the parties only, and
      shall be given no substantive or interpretive effect whatsoever. Any rule of construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in the construction or interpretation of this Agreement. As
      used in this Agreement, the words “include” and “including,” and variations thereof, shall not be deemed to be terms of limitation, but rather shall be deemed to be followed by the words “without limitation.”

     

    

    
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    SECTION 6.6     Severability. The provisions of this Agreement shall be deemed severable and the invalidity or unenforceability of any provision shall
      not affect the validity or enforceability of the other provisions hereof. If any provision of this Agreement, or the application of such provision to any Person or any circumstance, is invalid or unenforceable (a) a suitable and equitable provision
      shall be substituted therefor in order to carry out, so far as may be valid and enforceable, the intent and purpose of such invalid or unenforceable provision and (b) the remainder of this Agreement and the application of such provision to other
      Persons or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity or unenforceability affect the validity or enforceability of such provision, or the application of such provision, in any other
      jurisdiction.

     

    SECTION 6.7  Entire Agreement; Assignment. This Agreement constitutes the entire agreement, and supersedes all other prior agreements and
      understandings, both written and oral, between the parties, or any of them, with respect to the subject matter hereof; provided, however, that, as between the Company
      and Parent, to the extent of any conflict between the Merger Agreement and this Agreement, the terms of the Merger Agreement shall control and supersede any such conflicting terms. Neither this Agreement nor any of the rights, interests or
      obligations hereunder shall be assigned by any of the parties hereto (whether by operation of law or otherwise) without the prior written consent of the other parties, except that, without consent, each of Parent and the Company may assign all or any
      of its rights and obligations hereunder to any of its Affiliates that assume the rights and obligations of such party under the Merger Agreement. Subject to the preceding two sentences, this Agreement will be binding upon, inure to the benefit of and
      be enforceable by the parties hereto and their respective successors and permitted assigns. Notwithstanding anything to the contrary set forth herein, the Stockholder agrees that this Agreement and the obligations hereunder shall be binding upon any
      Person to which record or beneficial ownership of the Stockholder’s Subject Shares shall pass, whether by operation or law or otherwise, including the Stockholder’s heirs, guardians, administrators or successors and assigns, and the Stockholder
      agrees to take all actions necessary to effect the foregoing.

     

    SECTION 6.8    Governing Law. THIS AGREEMENT AND ALL QUESTIONS RELATING TO THE INTERPRETATION OR ENFORCEMENT OF THIS AGREEMENT SHALL BE DEEMED TO BE
      MADE IN AND IN ALL RESPECTS SHALL BE INTERPRETED, CONSTRUED AND GOVERNED BY AND IN ACCORDANCE WITH THE LAW OF THE STATE OF DELAWARE WITHOUT REGARD TO THE CONFLICTS OF LAW PRINCIPLES THEREOF TO THE EXTENT THAT SUCH PRINCIPLES WOULD DIRECT A MATTER TO
      ANOTHER JURISDICTION.

     

    SECTION 6.9    Specific Performance. The Stockholder acknowledges that any breach of this Agreement would give rise to irreparable harm for which
      monetary damages would not be an adequate remedy and each of the Company and Parent shall be entitled to a decree of specific performance and to temporary, preliminary and permanent injunctive relief to prevent breaches or threatened breaches of any
      of the provisions of this Agreement, without the necessity of proving the inadequacy of monetary damages as a remedy, which shall be the sole and exclusive remedy for any such breach.

     

    SECTION 6.10   Submission to Jurisdiction. The parties hereby irrevocably submit to the exclusive personal jurisdiction of the Court of Chancery of
      the State of Delaware, or, if the Chancery Court declines jurisdiction, the United States District Court for the District of Delaware or the courts of the State of Delaware solely in respect of the interpretation and enforcement of the provisions of
      this Agreement and hereby waive, and agree not to assert, as a defense in any action, suit or proceeding for the interpretation or enforcement hereof, that it is not subject thereto or that such action, suit or proceeding may not be brought or is not
      maintainable in said courts or that the venue thereof may not be appropriate or that this Agreement may not be enforced in or by such courts, and the parties hereto irrevocably agree that all claims relating to such action, suit or proceeding shall
      be heard and determined in such courts. The parties hereby consent to and grant any such court jurisdiction over the person of such parties and, to the extent permitted by law, over the subject matter of such dispute and agree that mailing of process
      or other papers in connection with any such action or proceeding in the manner provided in Section 6.4 or in such other manner as may be permitted by applicable Laws shall be valid and sufficient service
      thereof.

     

    
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    SECTION 6.11    Waiver of Jury Trial. EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO
      INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO
      THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT (a) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE
      EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER, (b) EACH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (c) EACH PARTY MAKES THIS WAIVER VOLUNTARILY, AND (d) EACH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT
      BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 6.11.

     

    SECTION 6.12  Counterparts. This Agreement may be executed in two or more counterparts (including by facsimile transmission or other means of
      electronic transmission, such as by electronic mail in “pdf” form), each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument, and shall become effective when one or more
      counterparts have been signed by each of the parties and delivered (by facsimile or otherwise) to the other parties.

     

    (Signature Page Follows)

     

    
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    IN WITNESS WHEREOF, the Company, Parent and the Stockholder have caused this Agreement to be duly executed as of the day and year first above written.

     

    	 	
            OCUPHIRE PHARMA, INC.

          
	 	 	 
	 	
            By:

          	 	 
	 	 	
            Name:

          
	 	 	
            Title:

          

     

    	 	
            REXAHN PHARMACEUTICALS, INC.

          
	 	 	 
	 	
            By:

          	 

    	 	 	
            Name:

            

          	Douglas J. Swirsky
	 	 	
            Title:

            

          	President and Chief Executive Officer

    

    

    	 	
            STOCKHOLDER

          
	 	 	 
	 	
            By:

          	 
	 	 	
            Name:

          
	 	 	
            Title:

          
	 	 	 
	 	 	
            Address:

          
	 	 	 
	 	 	
            Electronic Mail Address:

          

     

    
      [Signature Page to Voting Agreement]

    

      

    

    
      
        

    

    Exhibit A

     

    Certificate of Amendment

     

    [See attached.]

      

    

    
      
        

    

     Schedule I

     

    Ownership of Shares

     

    	
            Name and Address of Stockholder

          	
            Number of Shares of Common Stock

          
	
            [●]

          	
            [●]Exhibit 10.3

  

   

  

  
    Rexahn Pharmaceuticals, Inc.

    15245 Shady Grove Road, Suite 455

    Rockville, MD 20850

    

    

    Lock-Up Agreement

     

    June __, 2020

     

    This Lock-Up Agreement (this “Agreement”) is executed in connection with the Agreement and Plan of Merger and Reorganization (the “Merger Agreement”) by and among Rexahn Pharmaceuticals, Inc. (“Parent”), Razor Merger Sub, Inc. (“Merger Sub”), and Ocuphire Pharma, Inc. (the “Company”), dated as of June 17, 2020. Capitalized terms used herein but not defined shall have the meanings
      ascribed to such terms in the Merger Agreement.

     

    In connection with, and as a material inducement to, each of the parties entering into the Merger Agreement and for other good and valuable consideration the receipt and sufficiency of which is
      hereby acknowledged, the undersigned, by executing this Agreement, irrevocably agrees that, without the prior written consent of Parent, during the period commencing at the Effective Time and continuing until the end of the Lock-Up Period (as
      hereinafter defined), the undersigned will not:  (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, make any short sale or
      otherwise transfer or dispose of or lend, directly or indirectly, any shares of Parent Common Stock or any securities convertible into, exercisable or exchangeable for or that represent the right to receive Parent Common Stock (including without
      limitation, Parent Common Stock or such other securities which may be deemed to be beneficially owned by the undersigned in accordance with the rules and regulations of the SEC and securities of Parent which may be issued upon exercise of a stock
      option, restricted stock unit or warrant) whether now owned or hereafter acquired (collectively, the “Parent Securities”); (2) enter into any swap or other agreement that transfers, in whole
      or in part, any of the economic consequences of ownership of the Parent Securities, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Parent Common Stock or such other securities, in cash or otherwise;
      (3) make any demand for or exercise any right with respect to, the registration of any Parent Common Stock or any security convertible into or exercisable or exchangeable for Parent Common Stock; (4) except for any voting agreement entered into as of
      the date hereof by the undersigned with Parent and the Company, grant any proxies or powers of attorney with respect to any Parent Securities, deposit any Parent Securities into a voting trust or enter into a voting agreement or similar arrangement
      or commitment with respect to any Parent Securities; or (5) publicly disclose the intention to do any of the foregoing (each of the foregoing restrictions, the “Lock-Up Restrictions”).

     

    Notwithstanding the terms of the foregoing paragraph, the Lock-Up Restrictions shall automatically terminate and cease to be effective on the date that is one-hundred and eighty (180) days after the
      Effective Time.  The period during which the Lock-Up Restrictions apply to the Parent Securities shall be deemed the “Lock-Up Period” with respect thereto.

     

    
      
        

    

    
    The undersigned agrees that the Lock-Up Restrictions preclude the undersigned from engaging in any hedging or other transaction with respect to any then-subject Parent Securities which is designed to
      or which reasonably could be expected to lead to or result in a sale or disposition of such Parent Securities even if such Parent Securities would be disposed of by someone other than the undersigned.  Such prohibited hedging or other transactions
      would include without limitation any short sale or any purchase, sale or grant of any right (including without limitation any put or call option) with respect to such Parent Securities or with respect to any security that includes, relates to, or
      derives any significant part of its value from such Parent Securities.

     

    Notwithstanding the foregoing, the undersigned may transfer any of the Parent Securities (i) if the undersigned is a natural person, (1) to any person related to the undersigned by blood or adoption
      who is an immediate family member (not more remote than first cousin), or a family member by marriage or domestic partnership (a “Family Member”), (2) as a bona
        fide gift or charitable contribution, (3) to any trust for the direct or indirect benefit of the undersigned or any Family Member of the undersigned, (4) to the undersigned’s estate, following the death of the undersigned, by will, intestacy
      or other operation of law, (5) by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, or (6) to any partnership, corporation, limited liability company, investment fund or other entity which is
      controlled by the undersigned and/or by any Family Member of the undersigned; (ii) if the undersigned is a corporation, partnership, limited liability company, trust or other business entity, (1) to another corporation, partnership, limited liability
      company, trust or other business entity that is a direct or indirect affiliate (as defined in Rule 405 promulgated under the Securities Act of 1933, as amended) of the undersigned or (2) as distributions or dividends of shares of Parent Common Stock
      or any security convertible into or exercisable for Parent Common Stock to limited partners, limited liability company members or stockholders of the undersigned or holders of similar equity interests in the undersigned, (iii) if the undersigned is a
      trust, to the beneficiary of such trust, (iv) to a nominee or custodian of a person or entity to whom a disposition or transfer would be permissible under above clauses (i) through (iii), (v) to Parent in a transaction exempt from Section 16(b) of
      the Securities Exchange Act of 1934, as amended (the “Exchange Act”) upon a vesting event of the Parent Securities or upon the exercise of options or warrants to purchase Parent Common Stock
      on a “cashless” or “net exercise” basis or to cover tax withholding obligations of the undersigned in connection with such vesting or exercise (but for the avoidance of doubt, excluding all manners of exercise that would involve a sale in the open
      market of any securities relating to such options or warrants, whether to cover the applicable aggregate exercise price, withholding tax obligations or otherwise), (vi) to Parent in connection with the termination of employment or other termination
      of a service provider and pursuant to agreements in effect as of the Effective Time whereby Parent has the option to repurchase such shares or securities, (vii) acquired by the undersigned in open market transactions after the Effective Time, (viii)
      pursuant to a bona fide third party tender offer, merger, consolidation or other similar transaction made to all holders of Parent’s capital stock involving a change of control of Parent, provided that in the event that such tender offer, merger,
      consolidation or other such transaction is not completed, the Parent Securities shall remain subject to the restrictions contained in this Agreement, or (ix) pursuant to an order of a court or regulatory agency; provided,
      in the case of clauses (i)-(iv), that (A) such transfer shall not involve a disposition for value and (B) the transferee shall have executed and delivered a Lock-Up Agreement with terms and in a form substantially identical to this Agreement with
      respect to the shares of Parent Common Stock or other securities so transferred; and provided,  further, in the case of clauses (i)-(vii), no filing or public
      announcement under the Exchange Act or otherwise shall be required or voluntarily made by any person in connection with such transfer.

     

    
      2

      
        

    

    In addition, the foregoing restrictions shall not apply to (i) the exercise of stock options granted pursuant to equity incentive plans existing immediately following the Effective Time, including
      the “net” exercise of such options in accordance with their terms and the surrender of Parent Common Stock in lieu of payment in cash of the exercise price and any tax withholding obligations due as a result of such exercise (but for the avoidance of
      doubt, excluding all manners of exercise that would involve a sale in the open market of any securities relating to such options, whether to cover the applicable aggregate exercise price, withholding tax obligations or otherwise); provided that it shall apply to any of the Parent Securities issued upon such exercise, (ii) the sale or transfer of Parent Common Stock in an amount approximately equivalent to satisfy any income tax liabilities
      associated with ownership of Parent Securities; or (iii) the establishment of any contract, instruction or plan (a “Plan”) that satisfies all of the requirements of Rule 10b5-1(c)(1)(i)(B)
      under the Exchange Act; provided that (A) such Plan does not provide for the transfer of Parent Common Stock or any securities convertible into or exercisable or exchangeable for Parent Common Stock during
      the Lock-Up Period and (B) no public announcement or filing with the SEC or other regulatory authority is required or voluntarily made by or on behalf of the undersigned, Parent or any other person, prior to the expiration of the Lock-Up Period, in
      connection with the establishment of such Plan or any transactions contemplated thereunder.

     

    Any attempted transfer in violation of this Agreement will be of no effect and null and void, regardless of whether the purported transferee has any actual or constructive knowledge of the transfer
      restrictions set forth in this Agreement, and will not be recorded on the share register of Parent.  In furtherance of the foregoing, the undersigned hereby agrees and consents to the entry of “stop transfer” instructions with Parent’s transfer agent
      and registrar relating to the transfer of the undersigned’s shares of Parent Common Stock in violation of this Agreement and further agrees that Parent and its transfer agent and registrar are hereby authorized to decline to make any transfer of
      shares of Parent Common Stock if such transfer would constitute a violation or breach of this Agreement.

     

    Parent may cause the legend set forth below, or a legend substantially equivalent thereto, to be placed upon any certificate(s) or other documents, ledgers or instruments evidencing the undersigned’s
      ownership of Parent Common Stock:

     

    THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO AND MAY ONLY BE TRANSFERRED IN COMPLIANCE WITH A LOCK-UP AGREEMENT, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THE COMPANY.

     

    The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Agreement and that upon request, the undersigned will execute any additional
      documents reasonably necessary to ensure the validity or enforcement of this Agreement.  All authority herein conferred or agreed to be conferred and any obligations of the undersigned shall be binding upon the successors, assigns, heirs or personal
      representatives of the undersigned.

     

    
      3

      
        

    

    In the event that any holder of Parent Securities that is subject to a substantially similar agreement entered into by such holder and that acquired such Parent Securities as a former securityholder
      of the Company pursuant to the Merger Agreement, other than the undersigned, is permitted by Parent to sell or otherwise transfer or dispose of shares of Parent Common Stock for value other than as permitted by this or a substantially similar
      agreement entered into by such holder, the same percentage of shares of Parent Common Stock held by the undersigned shall be immediately and fully released on the same terms from any remaining restrictions set forth herein (the “Pro-Rata Release”). Upon the release of any Parent Securities from this Agreement, Parent will cooperate with the undersigned to facilitate the timely preparation and delivery of evidence of
      book-entry shares representing the Parent Securities without the restrictive legend above or the withdrawal of any stop transfer instructions.

     

    The undersigned understands that the undersigned shall be released from all obligations under this Agreement upon the earlier of (i) the expiration of the Lock-Up Period, and (ii) if the Merger
      Agreement is terminated prior to the Effective Time pursuant to its terms, upon the date of such termination.

     

    Any and all remedies herein expressly conferred upon Parent and the Company will be deemed cumulative with and not exclusive of any other remedy conferred hereby, or by law or equity, and the
      exercise by Parent and/or the Company of any one remedy will not preclude the exercise of any other remedy.  The undersigned agrees that irreparable damage would occur to Parent and the Company in the event that any provision of this Agreement were
      not performed in accordance with its specific terms or were otherwise breached.  It is accordingly agreed that Parent and the Company shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically
      the terms and provisions hereof in any court of the United States or any state having jurisdiction, this being in addition to any other remedy to which Parent and the Company are entitled at law or in equity, and the undersigned waives any bond,
      surety or other security that might be required of Parent or the Company with respect thereto.

     

    This Agreement and any claim, controversy or dispute arising under or related to this Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware, without
      regard to the conflict of laws principles thereof.

     

    This Agreement, and any certificates, documents, instruments and writings that are delivered pursuant hereto, constitutes the entire agreement and understanding of Parent, the Company and the
      undersigned in respect of the subject matter hereof and supersedes all prior understandings, agreements or representations by or among Parent, the Company and the undersigned, written or oral, to the extent they relate in any way to the subject
      matter hereof.  This Agreement may be executed in counterparts, each of which shall be deemed an original and all of which shall constitute one and the same instrument.  The exchange of a fully executed Agreement (in counterparts or otherwise) by the
      undersigned by facsimile or electronic transmission in “.pdf” format shall be sufficient to bind the undersigned to the terms and conditions of this Agreement.

     

    

    (Signature Page Follows)

     

    

    
      4

      
        

    

    The undersigned understands that Parent, Merger Sub and the Company are relying on this Lock-Up Agreement in entering into the Merger Agreement and proceeding toward consummation of the transactions
      contemplated thereby. The undersigned further understands that this Lock-Up Agreement is irrevocable and shall be binding upon the undersigned and the heirs, personal representatives, successors and assigns of the undersigned.

    

    

    	 	
            Very truly yours,

          
	 	 
	 	
            Printed Name of Holder

          
	 	 
	 	
            By:

          	 
	 	 	
            Signature

          
	 	 
	 	
            Printed Name of Person Signing

            (and indicate capacity of person signing if signing

            as custodian, trustee, or on behalf of an entity)

          

    

    

  

  
    [Lock-Up Agreement Signature Page]

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