FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Harding Nathan
 2. Date of Event Requiring Statement (Month/Day/Year)
05/06/2015		 3. Issuer Name and Ticker or Trading Symbol
EKSO BIONICS HOLDINGS, INC. [EKSO]
(Last)
(First)
(Middle)
C/O EKSO BIONICS HOLDINGS, INC., 1414 HARBOUR WAY SOUTH, SUITE 1201		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

RICHMOND, CA 94804		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 3,504,740
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy)   (1) 04/24/2022 Common Stock 266,665 $ 0.54 D  
Employee Stock Option (right to buy)   (2) 07/15/2023 Common Stock 20,513 $ 0.54 D  
Employee Stock Option (right to buy)   (3) 01/15/2024 Common Stock 900,000 $ 1 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Harding Nathan
C/O EKSO BIONICS HOLDINGS, INC.
1414 HARBOUR WAY SOUTH, SUITE 1201
RICHMOND, CA 94804		   X     Chief Executive Officer  

Signatures

Michelle L. Basil as Attorney-in-Fact 05/06/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The option became exercisable as to 25% of the total number of shares on April 24, 2013, and thereafter vests in equal monthly installments for 36 months.
(2) The option became exercisable as to 12.5% of the total number of shares on January 15, 2014, and thereafter vests in equal monthly installments for 42 months.
(3) The option became exercisable as to 25% of the total number of shares on January 15, 2015 and thereafter vests in equal monthly installments for 36 months.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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