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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K 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 Commission File Number : 001-39294 ASSERTIO HOLDINGS , INC . ( Exact Name of Registrant as Specified in its Charter ) ( STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION ) 100 South Saunders Road , Suite 300 , Lake Forest , Illinois ( Address of Principal Executive Offices ) Title of each class : Common Stock , $ 0.0001 par value 85-0598378 Registrant's telephone number , including area code : ( 224 ) 419-7106 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) : ASRT 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 No 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 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 ( I.R.S. EMPLOYER IDENTIFICATION NUMBER ) 60045 ( Zip Code ) Non - accelerated Filer 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 x No ■ Name of each exchange on which registered : Nasdaq Stock Market 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 Emerging growth company || Smaller reporting company ☐ 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 . 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 is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No The aggregate market value of the shares of common stock held by non - affiliates of the registrant , computed by reference to the closing price as reported on the Nasdaq Stock Market as of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , was approximately $ 89.9 million . The number of shares outstanding of the registrant's common stock , $ 0.0001 par value , as of March 1 , 2021 was 173,436,800 . Documents Incorporated by Reference Part III of this Annual Report on Form 10 - K incorporates by reference portions of the registrant's Proxy Statement for its 2021 Annual Meeting of Stockholders , which Proxy Statement will be filed with the United States Securities and Exchange Commission within 120 days after the end of the registrant's 2020 fiscal year .