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UNITED STATES SECURITIES AND EXCHANGE COMMISSION 1934 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF WASHINGTON , D.C. 20549 Nevada ( State or Other Jurisdiction of Incorporation or Organization ) FORM 10 - K Title of each class Common Stock , $ 0.001 par value Commission File No. 001-37854 Ekso Bionics Holdings , Inc. ( Exact name of registrant as specified in its charter ) 99-0367049 1414 Harbour Way South , Suite 1201 Richmond , California 94804 ( Address of Principal Executive Offices ) ( Zip Code ) Registrant's telephone number , including area code : ( 510 ) 984-1761 Securities registered pursuant to section 12 ( b ) of the Act : Trading Symbol EKSO ( I.R.S. Employer Identification No. ) Name of each exchange on which registered Nasdaq Stock Market LLC ( Nasdaq Capital Market ) Securities registered pursuant to section 12 ( g ) of the Act : None Indicate by check mark if the Registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes No ý No ý Indicate by check mark whether the registrant : ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes ý No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes ý No " Indicate by check mark whether the Registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Accelerated filer Non - accelerated filer ý Smaller reporting company Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . ¨