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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 Commission file number 001-36451 Quest Resource Holding Corporation ( Exact Name of Registrant as specified in its Charter ) Nevada ( State or Other Jurisdiction of Incorporation or Organization ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , par value $ .001 per share 3481 Plano Parkway The Colony , Texas 75056 ( Address of Principal Executive Offices and Zip Code ) (972)464-0004 ( Registrant's telephone number , including area code ) Trading Symbol QRHC | | □ 51-0665952 ( I.R.S. Employer Identification No. ) Name of each exchange on which registered NASDAQ 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 因 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 □ 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 the definitions of " large accelerated filer , " " accelerated filer " , " smaller reporting company " , and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Accelerated filer Large accelerated filer Non - accelerated filer Smaller reporting company 0 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 . The number of shares of Registrant's Common Stock outstanding as of March 1 , 2021 , was 18,413,419 . DOCUMENTS INCORPORATED BY REFERENCE None 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 Exchange Act ) . Yes No > The aggregate market value of the Common Stock held by non - affiliates of the Registrant , based on the closing price of such shares as quoted on the NASDAQ Stock Market on June 30 , 2020 was $ 13,132,156 . For purposes of this computation , all officers , directors , and 10 % beneficial owners of the registrant are deemed to be affiliates . Such determination should not be deemed to be an admission that such officers , directors , or 10 % beneficial owners are , in fact , affiliates of the Registrant .