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Table of Contents ( Mark One ) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K FOR ANNUAL AND TRANSITION REPORTS PURSUANT TO SECTIONS 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 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 1934 For the transition period from to Delaware State or other jurisdiction of incorporation or organization Title of each class Common stock , $ 0.001 par value PROTALIX BIOTHERAPEUTICS , INC . ( Exact name of registrant as specified in its charter ) 2 University Plaza Suite 100 Hackensack , NJ ( Address of principal executive offices ) 001-33357 ( Commission file number ) ( 201 ) 696-9345 Registrant's telephone number , including area code Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) PLX Securities registered pursuant to Section 12 ( g ) of the Act : None 65-0643773 ( I.R.S. Employer Identification No. ) 07601 ( Zip Code ) Name of each exchange on which registered NYSE American 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 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 No O No 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 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 definition 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 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 . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No = The aggregate market value of the voting common stock held by non - affiliates of the Registrant as of June 30 , 2020 was approximately $ 121.4 million , based on the closing price for shares of the Registrant's common stock reported by the NYSE American for such date . On March 1 , 2021 , approximately 45,382,831 shares of the Registrant's common stock , par value $ 0.001 per share , were outstanding . DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's proxy statement related to its 2021 Annual Stockholders ' Meeting to be filed subsequently are incorporated by reference into Part III of this Annual Report on Form 10 - K . Except as expressly incorporated by reference , the registrant's proxy statement shall not be deemed to be part of this report .