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 *
  CHICKASAW NATION INDUSTRIES, INC.
 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)
2600 JOHN SAXON BLVD.		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NORMAN, OK 73071		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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 10,368,373 (1)
I
By CNI Commercial LLC (1)

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
Warrant (RIGHT TO BUY)   (2)   (2) COMMON STOCK 279,645 (1) $ 1.38 I By CNI Commercial LLC (1)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
CHICKASAW NATION INDUSTRIES, INC.
2600 JOHN SAXON BLVD.
NORMAN, OK 73071		     X    
CNI COMMERCIAL LLC
2020 LONNIE ABBOTT BLVD
ADA, OK 74820		     X    
NIMMO DAVID
2600 JOHN SAXON BLVD.
NORMAN, OK 73071		     X    

Signatures

/s/ DAVID NIMMO, AUTHORIZED SIGNATORY 05/07/2015
**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 shares and the warrants are owned directly by CNI Commercial LLC, which is a wholly owned subsidiary of Chickasaw Nation Industries, Inc., of which David Nimmo is the President and Chief Executive Officer. David Nimmo disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that he is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
(2) The Warrant is currently exercisable and expires on May 20, 2020.

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