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Table of Contents No X X 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 TRANSITION REPORT UNDER SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Colorado ( State or other jurisdiction of incorporation or organization ) 150 King Street West , Suite 2800 , Toronto , Ontario Canada ( Address of principal executive offices ) Title of each class Commission file number 001-33190 MCEWEN MINING INC . ( Name of registrant as specified in its charter ) Securities registered pursuant to Section 12 ( b ) of the Act : to ( I.R.S. Employer Identification No. ) M5H 1J9 ( Zip Code ) ( 866 ) 441-0690 ( Registrant's telephone number , including area code ) Trading Symbol ( s ) 84-0796160 Name of each exchange on which registered New York Stock Exchange ( " NYSE " ) Common Stock , no par value MUX 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 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 Accelerated filer > Smaller reporting company Emerging growth company 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 . Large accelerated filer Non - accelerated filer 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 Exchange Act ) . Yes No As of June 30 , 2020 ( the last business day of the registrant's second fiscal quarter ) , the aggregate market value of the registrant's voting and non - voting common equity held by non - affiliates of the registrant was $ 406,515,026 based on the closing price of $ 1.01 per share as reported on the NYSE . There were 459,187,391 shares of common stock outstanding on March 10 , 2021 . DOCUMENTS INCORPORATED BY REFERENCE : Portions of the registrant's Proxy Statement for the 2021 Annual Meeting of Shareholders are incorporated into Part III , Items 10 through 14 of this report .