Exhibit 10.10

FORM OF

Registration Rights Agreement

This Registration Rights Agreement (this “Agreement”) is made and entered into effective as of _______________ ___, 2014, between Ekso Bionics Holdings, Inc., a Nevada corporation (the “Company”), the persons who have executed omnibus or counterpart signature page(s) hereto (each, a “Purchaser” and collectively, the “Purchasers,” which terms, for avoidance of doubt, include all persons who purchased Bridge Notes (as defined below) and/or Units (as defined below)), and the persons or entities identified on Schedule 1 hereto holding Bridge Placement Agent Warrants, Placement Agent Warrants (each as defined below) or Lender Warrants (collectively, the “Other Holders”).

RECITALS:

WHEREAS, Ekso Bionics, Inc., a Delaware corporation (the “Ekso”), has offered and sold in compliance with Rule 506 of Regulation D promulgated under the Securities Act of 1933, as amended (the “Securities Act”), to accredited investors in a private placement offering (the “Note Offering”), Ekso’s 10% Secured Convertible Promissory Notes with a term of eight (8) months (the “Bridge Notes”), pursuant to that certain Securities Purchase Agreement entered into by and between Ekso and buyer(s) of the Bridge Notes set forth on the signature pages affixed thereto (the “Bridge Purchase Agreement”); and

WHEREAS, the Company has offered and sold in compliance with Rule 506 of Regulation D promulgated under the Securities Act to accredited investors in a private placement offering (the “PIPE”) its “Units,” each consisting of (i) one share of the common stock of the Company, par value $0.001 per share (the “Common Stock”) and (ii) a warrant representing the right to purchase one share of Common Stock, exercisable from issuance until five (5) years after the initial closing of the PIPE at an exercise price of $2.00 per share (the “PIPE Warrants”), pursuant to that certain Subscription Agreement entered into by and between the Company and subscribers for the Units set forth on the signature pages affixed thereto (the “PIPE Subscription Agreement”); and

WHEREAS, in connection with the consummation of the PIPE and the merger of the Company’s wholly-owned subsidiary with and into Ekso (the “Merger”), all of the Bridge Notes have been converted into Units and warrants to purchase a number of shares of Common Stock equal to the number of shares of Common Stock contained in the Units into which the Bridge Notes converted, exercisable for a term of three (3) years at an exercise price per share of $1.00 (the “Bridge Warrants”) at the Conversion Price (as defined in the Bridge Notes); and

WHEREAS, the Company has agreed to enter into a registration rights agreement with each of the Purchasers in the PIPE who purchased the Units; and

WHEREAS, in connection with the Note Offering, Ekso agreed to cause the Company to enter into a registration rights agreement with each of the Purchasers who purchased Bridge Notes granting such Purchasers registration rights with respect to the shares of Common Stock issued to such Purchasers upon the converstion of the Bridge Notes into Units, shares of Common Stock issuable upon exercise of the PIPE Warrants issued to such Purchaser upon the conversion of the Bridge Notes into Units, and upon exercise of the Bridge Warrants issued to such Purchaser, in each case on a pari passu basis with, and upon substantially the same terms as the registration rights granted to, the Purchasers of Units in the PIPE; and

WHEREAS, the Company has agreed with the Placement Agent (as defined in the PIPE Subscription Agreement) that the shares of Common Stock issuable upon exercise of the Bridge Placement Agent Warrants and the Placement Agent Warrants shall be included in the Registration Statement and has agreed with that the Lender Warrants shall contain substantially the same terms as the Bridge Placement Agent Warrants.

Now, Therefore, in consideration of the mutual promises, representations, warranties, covenants, and conditions set forth herein, the parties mutually agree as follows:

1.          Certain Definitions. As used in this Agreement, the following terms shall have the following respective meanings:

“Approved Market” means the OTC Markets Group, the Nasdaq Stock Market, the New York Stock Exchange or the NYSE Amex.

“Blackout Period” means, with respect to a registration, a period during which the Company, in the good faith judgment of its board of directors, determines (because of the existence of, or in anticipation of, any acquisition, financing activity, or other transaction involving the Company, or the unavailability for reasons beyond the Company’s control of any required financial statements, disclosure of information which is in its best interest not to publicly disclose, or any other event or condition of similar significance to the Company) that the registration and distribution of the Registrable Securities to be covered by such registration statement, if any, would be seriously detrimental to the Company and its stockholders, in each case commencing on the day immediately after the Company notifies the Holders that they are required, because of the determination described above, to suspend offers and sales of Registrable Securities and ending on the earlier of (1) the date upon which the material non-public information resulting in the Blackout Period is disclosed to the public or ceases to be material and (2) such time as the Company notifies the selling Holders that sales pursuant to such Registration Statement or a new or amended Registration Statement may resume.

“Bridge Placement Agent Warrants” shall have the meaning set forth in the Subscription Agreement.

“Business Day” means any day of the year, other than a Saturday, Sunday, or other day on which banks in the State of New York are required or authorized to close.

“Commission” means the U. S. Securities and Exchange Commission or any other federal agency at the time administering the Securities Act.

“Common Stock” means the common stock, par value $0.001 per share, of the Company and any and all shares of capital stock or other equity securities of: (i) the Company which are added to or exchanged or substituted for the Common Stock by reason of the declaration of any stock dividend or stock split, the issuance of any distribution or the reclassification, readjustment, recapitalization or other such modification of the capital structure of the Company; and (ii) any other corporation, now or hereafter organized under the laws of any state or other governmental authority, with which the Company is merged, which results from any consolidation or reorganization to which the Company is a party, or to which is sold all or substantially all of the shares or assets of the Company, if immediately after such merger, consolidation, reorganization or sale, the Company or the stockholders of the Company own equity securities having in the aggregate more than 50% of the total voting power of such other corporation.

“Effective Date” means the date of the final closing of the PIPE.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Family Member” means (a) with respect to any individual, such individual’s spouse, any descendants (whether natural or adopted), any trust all of the beneficial interests of which are owned by any of such individuals or by any of such individuals together with any organization described in Section 501(c)(3) of the Internal Revenue Code of 1986, as amended, the estate of any such individual, and any corporation, association, partnership or limited liability company all of the equity interests of which are owned by those above described individuals, trusts or organizations and (b) with respect to any trust, the owners of the beneficial interests of such trust.

“Holder” means (i) each Purchaser or any of such Purchaser’s respective successors and Permitted Assignees who acquire rights in accordance with this Agreement with respect to any Registrable Securities directly or indirectly from a Purchaser or from any Permitted Assignee and (ii) each Other Holder or any of such Other Holder’s respective successors and Permitted Assignees who acquire rights in accordance with this Agreement with respect to any Registrable Securities directly or indirectly from an Other Holder or from any Permitted Assignee.

“Lender Warrants” means the warrant to purchase up to 225,000 shares of Common Stock issued to a certain lender of Ekso pursuant to a certain letter agreement between the lender and Ekso dated November 15, 2013.

“Majority Holders” means, at any time, Holders of a majority of the Registrable Securities then outstanding.

“Permitted Assignee” means (a) with respect to a partnership, its partners or former partners in accordance with their partnership interests, (b) with respect to a corporation, its stockholders in accordance with their interest in the corporation, (c) with respect to a limited liability company, its members or former members in accordance with their interest in the limited liability company, (d) with respect to an individual party, any Family Member of such party, (e) an entity that is controlled by, controls, or is under common control with a transferor, or (f) a party to this Agreement.

“Piggyback Registration” means, in any registration of Common Stock referenced in Section 3(b), the right of each Holder to include the Registrable Securities of such Holder in such registration.

“Placement Agent Warrants” shall have the meaning set forth in the Subscription Agreement.

The terms “register,” “registered,” and “registration” refer to a registration effected by preparing and filing a registration statement in compliance with the Securities Act, and the declaration or ordering of the effectiveness of such registration statement.

“Registrable Securities” means (a) the Shares, (b) the shares of Common Stock issuable upon exercise of the Bridge Warrants, (c) the shares of Common Stock issuable upon exercise of the PIPE Warrants, (d) the shares of Common Stock issuable upon exercise of the Bridge Placement Agent Warrants, (e) the shares of Common Stock issuable upon exercise of the Placement Agent Warrants, and (f) the shares of Common Stock issuable upon the exercise of the Lender Warrants; but, in each case, excluding any otherwise Registrable Securities that (i) have been sold or otherwise transferred other than to a Permitted Assignee, (ii) may be sold under the Securities Act without volume limitations either pursuant to Rule 144 of the Securities Act or otherwise during any ninety (90) day period, or (iii) are at the time subject to an effective registration statement under the Securities Act.

“Registration Default Period” means the period during which any Registration Event occurs and is continuing.

“Registration Effectiveness Date” means the date that is one hundred and eighty (180) calendar days after the Registration Statement is first filed with the Commission.

“Registration Event” means the occurrence of any of the following events:

(a)          the Company fails to file with the Commission the Registration Statement on or before the Registration Filing Date;

(b)          the Registration Statement is not declared effective by the Commission on or before the Registration Effectiveness Date;

(c)          after the SEC Effective Date, the Registration Statement ceases for any reason to remain continuously effective or the Holders are otherwise not permitted to utilize the prospectus therein to resell the Registrable Securities, for more than thirty (30) consecutive calendar days, except as excused pursuant to Section 3(a) and except during any Blackout Period; or

(d)          the Registrable Securities, if issued, are not listed or included for quotation on an Approved Market, or trading of the Common Stock is suspended or halted on the Approved Market, which at the time constitutes the principal market for the Common Stock, for more than three (3) full, consecutive Trading Days; provided, however, a Registration Event shall not be deemed to occur if all or substantially all trading in equity securities (including the Common Stock) of the Company is suspended or halted on the Approved Market for any length of time.

“Registration Filing Date” means the later to occur of (i) the date that is ninety (90) calendar days after the Effective Date and (ii) the date that is two (2) Business Days following the filing due date for the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013 (i.e., April 2, 2014).

“Registration Statement” means the registration statement that the Company is required to file pursuant to Section 3(a) of this Agreement to register the Registrable Securities.

“Rule 144” means Rule 144 promulgated by the Commission under the Securities Act, as such rule may be amended or supplemented from time to time, or any similar successor rule that may be promulgated by the Commission.

“Rule 145” means Rule 145 promulgated by the Commission under the Securities Act, as such rule may be amended or supplemented from time to time, or any similar successor rule that may be promulgated by the Commission.

“Rule 415” means Rule 415 promulgated by the Commission under the Securities Act, as such rule may be amended or supplemented from time to time, or any similar successor rule that may be promulgated by the Commission.

“Securities Act” means the Securities Act of 1933, as amended, or any similar federal statute promulgated in replacement thereof, and the rules and regulations of the Commission thereunder, all as the same shall be in effect at the time.

“SEC Effective Date” means the date the Registration Statement is declared effective by the Commission.

“Shares” means the shares of Common Stock issued to the Purchasers pursuant to the PIPE Subscription Agreement, the shares of Common Stock issued to the Purchasers upon conversion of the Bridge Notes into Units, and any shares of Common Stock issued or issuable with respect to such shares upon any stock split, dividend or other distribution, recapitalization or similar event with respect to the foregoing.

“Trading Day” means any day on which such national securities exchange, the OTC Markets Group or such other securities market or quotation system, which at the time constitutes the principal securities market for the Common Stock, is open for general trading of securities.

Capitalized terms used herein without definition have the meanings ascribed to them in the Bridge Purchase Agreement or the PIPE Subscription Agreement, as the case may be.

2.          Term. This Agreement shall terminate with respect to each Holder on the earlier of: (i) the date that is the later of (x) one year from the SEC Effective Date and (y) the date on which all Registrable Securities held by such Holder are transferred other than to a Permitted Transferee or may be sold under Rule 144 without volume limitations during any ninety (90) day period; or (ii) the date otherwise terminated as provided herein.

3.           Registration.

(a)          Registration on Form S-1. The Company shall file with the Commission a Registration Statement on Form S-1, or any other form for which the Company then qualifies or which counsel for the Company shall deem appropriate and which form shall be available for the resale by the Holders of all of the Registrable Securities, and the Company shall (i) use its commercially reasonable efforts to make the initial filing of the Registration Statement no later than the Registration Filing Date, (ii) use its commercially reasonable efforts to cause such Registration Statement to be declared effective no later than the Registration Effectiveness Date and (iii) use its commercially reasonable efforts to keep such Registration Statement effective for a period of one (1) year or for such shorter period ending on the earlier to occur of (i) the sale of all Registrable Securities and (ii) the availability of Rule 144 for the Holder to sell all of the Registrable Securities without volume limitations within a 90 day period (the “Effectiveness Period”); provided, however, that the Company shall not be obligated to effect any such registration, qualification or compliance pursuant to this Section, or keep such registration effective pursuant to the terms hereunder, in any particular jurisdiction in which the Company would be required to qualify to do business as a foreign corporation or as a dealer in securities under the securities laws of such jurisdiction or to execute a general consent to service of process in effecting such registration, qualification or compliance, in each case where it has not already done so. Notwithstanding the foregoing, in the event that the Commission should limit the number of Registrable Securities that may be sold pursuant to the Registration Statement, the Company may remove from the Registration Statement such number of Registrable Securities as specified by the Commission (the “Cut Back Shares”) on behalf of all of the holders of Registrable Securities on the following basis: first any Bridge Brokers’ Shares and PIPE Broker’s Shares shall be excluded from the Registration Statement on a pro rata basis, and then if additional Registrable Securities must be excluded, on behalf of all other holders of Registrable Securities on a pro rata basis. In such event, the Company shall give the Holders prompt notice of the number of Registrable Securities excluded therefrom. No partial liquidated damages (such as set forth in Section 3(d)) shall accrue to any Cut Back Shares.

(b)          Piggyback Registration. Piggyback Registration rights shall apply to any Registrable Securities that are removed from the Registration Statement as a result of a requirement by the Commission. If, after the SEC Effective Date, the Company shall determine to register for sale for cash any of its Common Stock, for its own account or for the account of others (other than the Holders), other than (x) a registration relating solely to employee benefit plans or securities issued or issuable to employees, consultants (to the extent the securities owned or to be owned by such consultants could be registered on Form S-8) or any of their Family Members (including a registration on Form S-8), (y) a registration relating solely to a Securities Act Rule 145 transaction or a registration on Form S-4 in connection with a merger, acquisition, divestiture, reorganization or similar event, or (z) a transaction relating solely to the sale of debt or convertible debt instruments, then the Company shall promptly give to each Holder written notice thereof (the “Registration Rights Notice”) (and in no event shall such notice be given less than twenty (20) calendar days prior to the filing of such registration statement), and shall, subject to Section 3(c), include as a Piggyback Registration all of the Registrable Securities specified in a written request delivered by the Holder thereof within ten (10) calendar days after delivery to the Holder of such written notice from the Company. However, the Company may, without the consent of such Holders, withdraw such registration statement prior to its becoming effective if the Company or such other selling stockholders have elected to abandon the proposal to register the securities proposed to be registered thereby.

(c)          Underwriting. If a Piggyback Registration is for a registered public offering that is to be made by an underwriting, the Company shall so advise the Holders as part of the Registration Rights Notice. In that event, the right of any Holder to Piggyback Registration shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to sell any of their Registrable Securities through such underwriting shall (together with the Company and any other stockholders of the Company selling their securities through such underwriting) enter into an underwriting agreement in customary form with the underwriter selected for such underwriting by the Company or such other selling stockholders, as applicable. Notwithstanding any other provision of this Section 3(c), if the underwriter or the Company determines that marketing factors require a limitation on the number of shares of Common Stock or the amount of other securities to be underwritten, the underwriter may exclude some or all Registrable Securities from such registration and underwriting. The Company shall so advise all Holders (except those Holders who failed to timely elect to include their Registrable Securities through such underwriting or have indicated to the Company their decision not to do so), and indicate to each such Holder the number of shares of Registrable Securities that may be included in the registration and underwriting, if any. The number of shares of Registrable Securities to be included in such registration and underwriting shall be allocated among such Holders as follows:

(i)          If the Piggyback Registration was initiated by the Company, the number of shares that may be included in the registration and underwriting shall be allocated first to the Company and then, subject to obligations and commitments existing as of the date hereof, to all persons exercising piggyback registration rights (including the Holders) who have requested to sell in the registration on a pro rata basis according to the number of shares requested to be included therein; and

(ii)         If the Piggyback Registration was initiated by the exercise of demand registration rights by a stockholder or stockholders of the Company, then the number of shares that may be included in the registration and underwriting shall be allocated first to such selling stockholders who exercised such demand to the extent of their demand registration rights, and then, subject to obligations and commitments existing as of the date hereof, to the Company and then, subject to obligations and commitments existing as of the date hereof, to all persons exercising piggyback registration rights (including the Holders) who have requested to sell in the registration on a pro rata basis according to the number of shares requested to be included therein.

No Registrable Securities excluded from the underwriting by reason of the underwriter’s marketing limitation shall be included in such registration. If any Holder disapproves of the terms of any such underwriting, such Holder may elect to withdraw such Holder’s Registrable Securities therefrom by delivering a written notice to the Company and the underwriter. The Registrable Securities so withdrawn from such underwriting shall also be withdrawn from such registration; provided, however, that, if by the withdrawal of such Registrable Securities, a greater number of Registrable Securities held by other Holders may be included in such registration (up to the maximum of any limitation imposed by the underwriters), then the Company shall offer to all Holders who have included Registrable Securities in the registration the right to include additional Registrable Securities pursuant to the terms and limitations set forth herein in the same proportion used above in determining the underwriter limitation.

(d)          Liquidated Damages. If a Registration Event occurs, then the Company will make payments to each Holder of Registrable Securities, as partial liquidated damages to such Holder by reason of the Registration Event, a cash sum equal to one percent (1%) of the aggregate purchase price paid by such Holder pursuant to the Bridge Purchase Agreement or PIPE Subscription Agreement, as applicable, with respect to such Holder’s Registrable Securities which are affected by such Registration Event, for each full thirty (30) days during which such Registration Event continues to affect such Registrable Securities (which shall be pro-rated for any period less than 30 days). For the sake of clarity, the partial liquidated damages contemplated by this Section 3(d) shall not be payable in respect of any of the Registrable Securities identified in clauses (d), (e) and (f) of the definition of Registrable Securities. Notwithstanding the foregoing, the maximum amount of liquidated damages that may be paid by the Company pursuant to this Section 3(d) shall be an amount equal to eight percent (8%) of the aggregate purchase price paid by all Holders pursuant to the Bridge Purchase Agreement or PIPE Subscription Agreement with respect to the Registrable Securities that are affected by all Registration Events in the aggregate. Each payment of liquidated damages pursuant to this Section 3(d) shall be due and payable in arrears within five (5) days after the end of each full 30-day period of the Registration Default Period until the termination of the Registration Default Period and within five (5) days after such termination. Such payments shall constitute the Holder’s exclusive remedy for any Registration Event. The Registration Default Period shall terminate upon the earlier of such time as the Registrable Securities that are affected by the Registration Event cease to be Registable Securities or (i) the filing of the Registration Statement in the case of clause (a) of the definition of Registration Event, (ii) the SEC Effective Date in the case of clause (b) of the definition of Registration Event, (iii) the ability of the Holders to effect sales pursuant to the Registration Statement in the case of clause (c) of the definition of Registration Event, and (iv) the listing or inclusion and/or trading of the Common Stock on an Approved Market, as the case may be, in the case of clause (d) of the definition of Registration Event. The amounts payable as liquidated damages pursuant to this Section 3(d) shall be payable in lawful money of the United States. Notwithstanding the foregoing, the Company will not be liable for the payment of liquidated damages described in this Section 3(d) for any delay in registration of Registrable Securities that would otherwise be includable in the Registration Statement pursuant to Rule 415 solely as a result of a comment received by the Commission requiring a limit on the number of Registrable Securities included in such Registration Statement in order for such Registration Statement to be able to avail itself of Rule 415. In the event of any such delay, the Company will use its commercially reasonable efforts at the first opportunity that is permitted by the Commission to register for resale the Registrable Securities that have been cut back from being registered pursuant to Rule 415 only with respect to that portion of the Holders’ Registrable Securities that are then Registrable Securities.

(e)          Notwithstanding the provisions of Section 3(d) above, if (i) the Commission does not declare the Registration Statement effective on or before the Registration Effectiveness Date, or (ii) the Commission allows the Registration Statement to be declared effective at any time before or after the Registration Effectiveness Date, subject to the withdrawal of certain Registrable Securities from the Registration Statement, and the reason for (i) or (ii) is the Commission’s determination that (x) the offering of any of the Registrable Securities constitutes a primary offering of securities by the Company, (y) Rule 415 may not be relied upon for the registration of the resale of any or all of the Registrable Securities, and/or (z) a Holder of any Registrable Securities must be named as an underwriter, the Holders understand and agree that in the case of (ii) the Company may (notwithstanding anything to the contrary contained herein) reduce, on a pro rata basis, the total number of Registrable Securities to be registered on behalf of each such Holder, and in the case of (i) or (ii) the Holder shall not be entitled to partial liquidated damages with respect to the Registrable Securities not registered for the reason set forth in (a) or so reduced on a pro rata basis as set forth in (i).

4.           Registration Procedures. The Company will keep each Holder reasonably advised as to the filing and effectiveness of the Registration Statement. At its expense with respect to the Registration Statement, the Company will:

(a)          prepare and file with the Commission with respect to the Registrable Securities, a Registration Statement in accordance with Section 3(a)hereof, and use its commercially reasonable efforts to cause such Registration Statement to become effective and to remain effective for the Effectiveness Period;

(b)          if the Registration Statement is subject to review by the Commission, promptly respond to all comments and diligently pursue resolution of any comments to the satisfaction of the Commission;

(c)          prepare and file with the Commission such amendments and supplements to such Registration Statement as may be necessary to keep such Registration Statement effective during the Effectiveness Period;

(d)          furnish, without charge, to each Holder of Registrable Securities covered by such Registration Statement (i) a reasonable number of copies of such Registration Statement (including any exhibits thereto other than exhibits incorporated by reference), each amendment and supplement thereto as such Holder may reasonably request, (ii) such number of copies of the prospectus included in such Registration Statement (including each preliminary prospectus and any other prospectus filed under Rule 424 of the Securities Act) as such Holders may reasonably request, in conformity with the requirements of the Securities Act, and (iii) such other documents as such Holder may reasonably require to consummate the disposition of the Registrable Securities owned by such Holder, but only during the Effectiveness Period;

(e)          use its commercially reasonable efforts to register or qualify such registration under such other applicable securities laws of such jurisdictions within the United States as any Holder of Registrable Securities covered by such Registration Statement reasonably requests and as may be necessary for the marketability of the Registrable Securities (such request to be made by the time the applicable Registration Statement is deemed effective by the Commission) and do any and all other acts and things necessary to enable such Holder to consummate the disposition in such jurisdictions of the Registrable Securities owned by such Holder; provided, that the Company shall not be required to (i) qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify but for this paragraph, (ii) subject itself to taxation in any such jurisdiction, or (iii) consent to general service of process in any such jurisdiction.

(f)          as promptly as practicable after becoming aware of such event, notify each Holder of Registrable Securities, the disposition of which requires delivery of a prospectus relating thereto under the Securities Act, of the happening of any event, which comes to the Company’s attention, that will after the occurrence of such event cause the prospectus included in such Registration Statement, if not amended or supplemented, to contain an untrue statement of a material fact or an omission to state a material fact required to be stated therein or necessary to make the statements therein not misleading and the Company shall promptly thereafter prepare and furnish to such Holder a supplement or amendment to such prospectus (or prepare and file appropriate reports under the Exchange Act) so that, as thereafter delivered to the purchasers of such Registrable Securities, such prospectus shall not contain an untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading, unless suspension of the use of such prospectus otherwise is authorized herein or in the event of a Blackout Period, in which case no supplement or amendment need be furnished (or Exchange Act filing made) until the termination of such suspension or Blackout Period;

(g)          comply, and continue to comply during the Effectiveness Period, in all material respects with the Securities Act and the Exchange Act and with all applicable rules and regulations of the Commission with respect to the disposition of all securities covered by such Registration Statement;

(h)          as promptly as practicable after becoming aware of such event, notify each Holder of Registrable Securities being offered or sold pursuant to the Registration Statement of the issuance by the Commission of any stop order or other suspension of effectiveness of the Registration Statement;

(i)          use its commercially reasonable efforts to cause all the Registrable Securities covered by the Registration Statement to be quoted on the OTC Markets Group or such other principal securities market on which securities of the same class or series issued by the Company are then listed or traded;

(j)          provide a transfer agent and registrar, which may be a single entity, for the shares of Common Stock at all times;

(k)          cooperate with the Holders of Registrable Securities being offered pursuant to the Registration Statement to issue and deliver, or cause its transfer agent to issue and deliver, certificates representing Registrable Securities to be offered pursuant to the Registration Statement within a reasonable time after the delivery of certificates representing the Registrable Securities to the transfer agent or the Company, as applicable, and enable such certificates to be in such denominations or amounts as the Holders may reasonably request and registered in such names as the Holders may request;

(l)          during the Effectiveness Period, refrain from bidding for or purchasing any Common Stock or any right to purchase Common Stock or attempting to induce any person to purchase any such security or right if such bid, purchase or attempt would in any way limit the right of the Holders to sell Registrable Securities by reason of the limitations set forth in Regulation M of the Exchange Act; and

(m)          take all other reasonable actions necessary to expedite and facilitate the disposition by the Holders of the Registrable Securities pursuant to the Registration Statement during the term of this Agreement.

5.           Obligations of the Holders.

(a)          Each Holder agrees that, upon receipt of any notice from the Company of the happening of any event of the kind described in Section 4(f) hereof or of the commencement of a Blackout Period, such Holder shall discontinue the disposition of Registrable Securities included in the Registration Statement until such Holder’s receipt of the copies of the supplemented or amended prospectus contemplated by Section 4(f) hereof or notice of the end of the Blackout Period, and, if so directed by the Company, such Holder shall deliver to the Company (at the Company’s expense) all copies (including, without limitation, any and all drafts), other than permanent file copies, then in such Holder’s possession, of the prospectus covering such Registrable Securities current at the time of receipt of such notice.

(b)          The holders of the Registrable Securities shall provide such information as may reasonably be requested by the Company, or the managing underwriter, if any, in connection with the preparation of any registration statement, including amendments and supplements thereto, in order to effect the registration of any Registrable Securities under the Securities Act pursuant to Section 3(a) and/or 3(a)3(b) of this Agreement and in connection with the Company’s obligation to comply with federal and applicable state securities laws, including a completed questionnaire in the form attached to this Agreement as Annex A (a “Selling Securityholder Questionnaire”) or any update thereto not later than three (3) Business Days following a request therefore from the Company.

(c)          Each Holder, by its acceptance of the Registrable Securities, agrees to cooperate with the Company as reasonably requested by the Company in connection with the preparation and filing of any Registration Statement hereunder, unless such Holder has notified the Company in writing of its election to exclude all of its Registrable Securities from such Registration Statement.

6.           Registration Expenses. The Company shall pay all expenses in connection with any registration obligation provided herein, including, without limitation, all registration, filing, stock exchange fees, printing expenses, all fees and expenses of complying with applicable securities laws, and the fees and disbursements of counsel for the Company and of its independent accountants; provided, that, in any underwritten registration, the Company shall have no obligation to pay any underwriting discounts, selling commissions or transfer taxes attributable to the Registrable Securities being sold by the Holders thereof, which underwriting discounts, selling commissions and transfer taxes shall be borne by such Holders. Additionally, in an underwritten offering, all selling stockholders and the Company shall bear the expenses of the underwriter pro rata in proportion to the respective amount of shares each is selling in such offering. Except as provided in this Section 6 and Section 8 of this Agreement, the Company shall not be responsible for the expenses of any attorney or other advisor employed by a Holder.

7.           Assignment of Rights. No Holder may assign its rights under this Agreement to any party without the prior written consent of the Company; provided, however, that any Holder may assign its rights under this Agreement without such consent to a Permitted Assignee as long as (a) such transfer or assignment is effected in accordance with applicable securities laws; (b) such transferee or assignee agrees in writing to become bound by and subject to the terms of this Agreement; and (c) such Holder notifies the Company in writing of such transfer or assignment, stating the name and address of the transferee or assignee and identifying the Registrable Securities with respect to which such rights are being transferred or assigned. the Company may assign this Agreement or any rights or obligations hereunder without the prior written consent of the other party hereto.

8.           Indemnification.

(a)          In the event of the offer and sale of Registrable Securities under the Securities Act, the Company shall, and hereby does, indemnify and hold harmless, to the fullest extent permitted by law, each Holder, its directors, officers, partners, and each other person, if any, who controls or is under common control with such Holder within the meaning of Section 15 of the Securities Act, against any losses, claims, damages or liabilities, joint or several, and expenses to which the Holder or any such director, officer, partner or controlling person may become subject under the Securities Act or otherwise, insofar as such losses, claims, damages, liabilities or expenses (or actions or proceedings, whether commenced or threatened, in respect thereof) arise out of or are based upon any untrue statement of any material fact contained in any registration statement prepared and filed by the Company under which Registrable Securities were registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained therein, or any amendment or supplement thereto, or any omission to state therein a material fact required to be stated or necessary to make the statements therein in light of the circumstances in which they were made not misleading, and the Company shall reimburse the Holder, and each such director, officer, partner and controlling person for any legal or any other expenses reasonably incurred by them in connection with investigating, defending or settling any such loss, claim, damage, liability, action or proceeding; provided, however, that such indemnity agreement found in this Section 8(a) shall in no event exceed the net proceeds from the Note Offering and the PIPE received by Ekso and the Company, respectively; and provided further, that the Company shall not be liable in any such case (i) to the extent that any such loss, claim, damage, liability (or action or proceeding in respect thereof) or expense arises out of or is based upon (a) an untrue statement in or omission from such registration statement, any such preliminary prospectus, final prospectus, summary prospectus, amendment or supplement in reliance upon and in conformity with written information furnished to the Company for use in the preparation thereof or (b) the failure of a Holder to comply with the covenants and agreements contained in Section 5 hereof respecting the sale of Registrable Securities; or (ii) if the person asserting any such loss, claim, damage, liability (or action or proceeding in respect thereof) who purchased the Registrable Securities that are the subject thereof did not receive a copy of an amended preliminary prospectus or the final prospectus (or the final prospectus as amended or supplemented) at or prior to the written confirmation of the sale of such Registrable Securities to such person because of the failure of such Holder to so provide such amended preliminary or final prospectus and the untrue statement or omission of a material fact made in such preliminary prospectus was corrected in the amended preliminary or final prospectus (or the final prospectus as amended or supplemented). Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of the Holders, or any such director, officer, partner or controlling person and shall survive the transfer of such shares by the Holder.

(b)          As a condition to including Registrable Securities in any registration statement filed pursuant to this Agreement, each Holder agrees to be bound by the terms of this Section 8 and to indemnify and hold harmless, to the fullest extent permitted by law, the Company, each of its directors, officers, partners, legal counsel and accountants and each underwriter, if any, and each other person, if any, who controls the Company within the meaning of Section 15 of the Securities Act, against any losses, claims, damages or liabilities, joint or several, to which the Company or any such director or officer or controlling person may become subject under the Securities Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions or proceedings, whether commenced or threatened, in respect thereof) arise out of or are based upon any untrue statement of a material fact or any omission of a material fact required to be stated in any registration statement, any preliminary prospectus, final prospectus, summary prospectus, amendment or supplement thereto or necessary to make the statements therein not misleading, to the extent that such untrue statement or omission is included or omitted in reliance upon and in conformity with written information furnished by the Holder for use in the preparation thereof, and such Holder shall reimburse the Company, and such Holders, directors, officers, partners, legal counsel and accountants, persons, underwriters, or control persons, each such director, officer, and controlling person for any legal or other expenses reasonably incurred by them in connection with investigating, defending, or settling any such loss, claim, damage, liability, action, or proceeding; provided, however, that indemnity obligation contained in this Section 8(b) shall in no event exceed the amount of the net proceeds received by such Holder as a result of the sale of such Holder’s Registrable Securities pursuant to such registration statement, except in the case of fraud or willful misconduct. Such indemnity shall remain in full force and effect, regardless of any investigation made by or on behalf of the Company or any such director, officer or controlling person and shall survive the transfer by any Holder of such shares.

(c)          Promptly after receipt by an indemnified party of notice of the commencement of any action or proceeding involving a claim referred to in this Section 8 (including any governmental action), such indemnified party shall, if a claim in respect thereof is to be made against an indemnifying party, give written notice to the indemnifying party of the commencement of such action; provided, that the failure of any indemnified party to give notice as provided herein shall not relieve the indemnifying party of its obligations under this Section, except to the extent that the indemnifying party is actually prejudiced by such failure to give notice. In case any such action is brought against an indemnified party, unless in the reasonable judgment of counsel to such indemnified party a conflict of interest between such indemnified and indemnifying parties may exist or the indemnified party may have defenses not available to the indemnifying party in respect of such claim, the indemnifying party shall be entitled to participate in and to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party and, after notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof, the indemnifying party shall not be liable to such indemnified party for any legal or other expenses subsequently incurred by the latter in connection with the defense thereof, unless in such indemnified party’s reasonable judgment a conflict of interest between such indemnified and indemnifying parties arises in respect of such claim after the assumption of the defenses thereof or the indemnifying party fails to defend such claim in a diligent manner, other than reasonable costs of investigation. Neither an indemnified nor an indemnifying party shall be liable for any settlement of any action or proceeding effected without its consent. No indemnifying party shall, without the consent of the indemnified party, consent to entry of any judgment or enter into any settlement, which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect of such claim or litigation. Notwithstanding anything to the contrary set forth herein, and without limiting any of the rights set forth above, in any event any party shall have the right to retain, at its own expense, counsel with respect to the defense of a claim. Each indemnified party shall furnish such information regarding itself or the claim in question as an indemnifying party may reasonably request in writing and as shall be reasonably required in connection with defense of such claim and litigation resulting therefrom.

(d)          If an indemnifying party does or is not permitted to assume the defense of an action pursuant to Sections 8(c) or in the case of the expense reimbursement obligation set forth in Sections 8(a) and 8(b), the indemnification required by Sections 8(a) and 8(b) shall be made by periodic payments of the amount thereof during the course of the investigation or defense, as and when bills are received or expenses, losses, damages, or liabilities are incurred.

(e)          If the indemnification provided for in Section 8(a) or 8(b) is held by a court of competent jurisdiction to be unavailable to an indemnified party with respect to any loss, liability, claim, damage or expense referred to herein, the indemnifying party, in lieu of indemnifying such indemnified party hereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such loss, liability, claim, damage or expense (i) in such proportion as is appropriate to reflect the proportionate relative fault of the indemnifying party on the one hand and the indemnified party on the other (determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or omission relates to information supplied by the indemnifying party or the indemnified party and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such untrue statement or omission), or (ii) if the allocation provided by clause (i) above is not permitted by applicable law or provides a lesser sum to the indemnified party than the amount hereinafter calculated, then in such proportion as is appropriate to reflect not only the proportionate relative fault of the indemnifying party and the indemnified party, but also the relative benefits received by the indemnifying party on the one hand and the indemnified party on the other, as well as any other relevant equitable considerations. No indemnified party guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any indemnifying party who was not guilty of such fraudulent misrepresentation.

(f)          Notwithstanding the foregoing, to the extent that the provisions on indemnification and contribution contained in the underwriting agreement entered into in connection with an underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control.

(g)          Other Indemnification. Indemnification similar to that specified in this Section (with appropriate modifications) shall be given by the Company and each Holder of Registrable Securities with respect to any required registration or other qualification of securities under any federal or state law or regulation or governmental authority other than the Securities Act.

9.           Rule 144. The Company shall file with the Commission “Form 10 information” (as defined in Rule 144(i)(3) under the Securities Act) reflecting its status as an entity that is no longer an issuer described in Rule 144(i)(1)(i) promptly following the closing of the Merger. For a period extending from the date that is twelve (12) months after the filing of such Form 10 information until at least twelve (12) months following the Effective Date, the Company shall (a) cause itself to be subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act and (b) use its commercially reasonable efforts to timely file all reports required to be filed by the Company during such period under the Exchange Act and the rules and regulations adopted by the Commission thereunder.

10.         Independent Nature of Each Purchaser’s Obligations and Rights. The obligations of each Purchaser and each Other Holder under this Agreement are several and not joint with the obligations of any other Purchaser or Other Holder, and each Purchaser and each Other Holder shall not be responsible in any way for the performance of the obligations of any other Purchaser or any Other Holder under this Agreement. Nothing contained herein and no action taken by any Purchaser or Other Holder pursuant hereto, shall be deemed to constitute such Purchasers and/or Other Holders as a partnership, an association, a joint venture, or any other kind of entity, or create a presumption that the Purchasers and/or Other Holders are in any way acting in concert or as a group with respect to such obligations or the transactions contemplated by this Agreement. Each Purchaser and each Other Holder shall be entitled to independently protect and enforce its rights, including without limitation the rights arising out of this Agreement, and it shall not be necessary for any other Purchaser or Other Holder to be joined as an additional party in any proceeding for such purpose.

11.         Miscellaneous.

(a)          Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the United States of America and the State of New York, both substantive and remedial, without regard to New York conflicts of law principles. Any judicial proceeding brought against either of the parties to this Agreement or any dispute arising out of this Agreement or any matter related hereto shall be brought in the courts of the State of New York, New York County, or in the United States District Court for the Southern District of New York and, by its execution and delivery of this Agreement, each party to this Agreement accepts the jurisdiction of such courts. The foregoing consent to jurisdiction shall not be deemed to confer rights on any person other than the parties to this Agreement.

(b)          Remedies. In the event of a breach by the Company or by a Holder of any of their respective obligations under this Agreement, each Holder or the Company, as the case may be, in addition to being entitled to exercise all rights granted by law and under this Agreement, including recovery of damages, shall be entitled to specific performance of its rights under this Agreement. The Company and each Holder agree that monetary damages would not provide adequate compensation for any losses incurred by reason of a breach by it of any of the provisions of this Agreement and hereby further agrees that, in the event of any action for specific performance in respect of such breach, it shall not assert or shall waive the defense that a remedy at law would be adequate.

(c)          Successors and Assigns. Except as otherwise provided herein, the provisions hereof shall inure to the benefit of, and be binding upon, the successors, Permitted Assignees, executors and administrators of the parties hereto.

(d)          No Inconsistent Agreements. The Company has not entered, as of the date hereof, and shall not enter, on or after the date of this Agreement, into any agreement with respect to its securities that would have the effect of impairing the rights granted to the Holders in this Agreement or otherwise conflicts with the provisions hereof.

(e)          Entire Agreement. This Agreement and the documents, instruments and other agreements specifically referred to herein or delivered pursuant hereto constitute the full and entire understanding and agreement between the parties with regard to the subjects hereof.

(f)          Notices, etc. All notices or other communications which are required or permitted under this Agreement shall be in writing and sufficient if transmitted by hand delivery, by facsimile transmission, by registered or certified mail, postage pre-paid, by electronic mail, or by nationally recognized overnight carrier, to the persons at the addresses set forth below (or at such other address as may be provided hereunder), and shall be deemed to have been delivered (i) if transmitted by hand delivery, as of the date delivered, (ii) if transmitted by facsimile or electronic mail, as of the date so transmitted with an automated confirmation of delivery, (iii) if transmitted by nationally recognized overnight carrier, as of the Business Day following the date of delivery to the carrier, and (iv) if transmitted by registered or certified mail, postage pre-paid, on the third Business Day following posting with the U.S. Postal Service:

If to the Company, to:

Ekso Bionics Holdings, Inc.

1414 Harbour Way South, Suite 1201 Richmond, CA 94804

Attention:

Facsimile:

E-mail Address:

with copy to:

Attn:

Facsimile Number:

Telephone Number:

E-mail Address:

if to a Purchaser or Other Holder, to:

such Purchaser or Other Holder at the address set forth on the signature page hereto;

or at such other address as any party shall have furnished to the other parties in writing.

(g)          Delays or Omissions. No delay or omission to exercise any right, power or remedy accruing to any Holder, upon any breach or default of the Company under this Agreement, shall impair any such right, power or remedy of such Holder nor shall it be construed to be a waiver of any such breach or default, or an acquiescence therein, or of any similar breach or default thereunder occurring; nor shall any waiver of any single breach or default be deemed a waiver of any other breach or default theretofore or thereafter occurring. Any waiver, permit, consent or approval of any kind or character on the part of any Holder of any breach or default under this Agreement, or any waiver on the part of any Holder of any provisions or conditions of this Agreement, must be in writing and shall be effective only to the extent specifically set forth in such writing. All remedies, either under this Agreement, or by law or otherwise afforded to any holder, shall be cumulative and not alternative.

(h)          Counterparts. This Agreement may be executed in any number of counterparts, and with respect to any Purchaser, by execution of an Omnibus Signature Page to this Agreement and the Bridge Purchase Agreement or PIPE Subscription Agreement, each of which shall be enforceable against the parties actually executing such counterparts, and all of which together shall constitute one instrument. In the event that any signature is delivered by facsimile transmission or by e-mail, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such facsimile signature page were an original thereof.

(i)          Severability. In the case any provision of this Agreement shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

(j)          Amendments. Except as otherwise provided herein, the provisions of this Agreement may be amended at any time and from time to time, and particular provisions of this Agreement may be waived, with and only with an agreement or consent in writing signed by the Company and the Majority Holders. The Purchasers and Other Holders acknowledge that by the operation of this Section, the Majority Holders may have the right and power to diminish or eliminate all rights of the Purchasers and/or Other Holders under this Agreement.

[COMPANY SIGNATURE PAGE FOLLOWS]

This Registration Rights Agreement is hereby executed as of the date first above written.

Annex A

EKSO BIONICS HOLDINGS, INC.

Selling Securityholder Notice and Questionnaire

The undersigned beneficial owner of Registrable Securities of Ekso Bionics Holdings, Inc., a Nevada corporation (the “Company”), understands that the Company has filed or intends to file with the U.S. Securities and Exchange Commission a registration statement (the “Registration Statement”) for the registration and resale under Rule 415 of the Securities Act of 1933, as amended, of the Registrable Securities, in accordance with the terms of the Registration Rights Agreement (the “Registration Rights Agreement”) to which this document is annexed. A copy of the Registration Rights Agreement is available from the Company upon request at the address set forth below. All capitalized terms not otherwise defined herein shall have the meanings ascribed thereto in the Registration Rights Agreement.

Certain legal consequences arise from being named as a selling security holder in the Registration Statement and the related prospectus. Accordingly, holders and beneficial owners of Registrable Securities are advised to consult their own securities law counsel regarding the consequences of being named or not being named as a selling security holder in the Registration Statement and the related prospectus.

NOTICE

The undersigned beneficial owner (the “Selling Securityholder”) of Registrable Securities hereby elects to include the Registrable Securities owned by it in the Registration Statement.

The undersigned hereby provides the following information to the Company and represents and warrants that such information is accurate:

QUESTIONNAIRE

1. Name: 

2. Address for Notices to Selling Securityholder:

3. Broker-Dealer Status:

Yes   ¨         No   ¨

Yes   ¨         No   ¨

Note:     If “no” to Section 3(b), the Commission’s staff has indicated that you should be identified as an underwriter in the Registration Statement.

Yes   ¨         No   ¨

Yes   ¨         No   ¨

4. Beneficial Ownership of Securities of the Company Owned by the Selling Securityholder:

Except as set forth below in this Item 4, the undersigned is not the beneficial or registered owner of any securities of the Company.

5. Relationships with the Company:

Except as set forth below, neither you nor (if you are a natural person) any member of your immediate family, nor (if you are not a natural person) any of your affiliates², officers, directors or principal equity holders (owners of 5% of more of the equity securities of the undersigned) has held any position or office or has had any other material relationship with the Company (or its predecessors or affiliates) during the past three years.

It is possible that a security may have more than one “beneficial owner,” such as a trust, with two co-trustees sharing voting power, and the settlor or another third party having investment power, in which case each of the three would be the “beneficial owner” of the securities in the trust.  The power to vote or direct the voting, or to invest or dispose of, or direct the investment or disposition of, a security may be indirect and arise from legal, economic, contractual or other rights, and the determination of beneficial ownership depends upon who ultimately possesses or shares the power to direct the voting or the disposition of the security.

The final determination of the existence of beneficial ownership depends upon the facts of each case.  You may, if you believe the facts warrant it, disclaim beneficial ownership of securities that might otherwise be considered “beneficially owned” by you.

The undersigned agrees to promptly notify the Company of any inaccuracies or changes in the information provided herein that may occur subsequent to the date hereof at any time while the Registration Statement remains effective.

By signing below, the undersigned consents to the disclosure of the information contained herein in its answers to Items 1 through 5 and the inclusion of such information in the Registration Statement and the related prospectus and any amendments or supplements thereto. The undersigned understands that such information will be relied upon by the Company in connection with the preparation or amendment of the Registration Statement and the related prospectus and any amendments or supplements thereto.

IN WITNESS WHEREOF the undersigned, by authority duly given, has caused this Selling Securityholder Notice and Questionnaire to be executed and delivered either in person or by its duly authorized agent.

PLEASE E-MAIL OR FAX A COPY OF THE COMPLETED AND EXECUTED SELLING SECURITYHOLDER NOTICE AND QUESTIONNAIRE, AND RETURN THE ORIGINAL BY OVERNIGHT MAIL, TO:

Gottbetter & Partners, LLP

488 Madison Avenue, 12th Floor

New York, NY 10022

Attention: Eleanor M. Osmanoff

Facsimile: (212) 400-6901

E-mail Address: emo@gottbetter.com