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TABLE OF CONTENTS 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 or 0 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Delaware ( State or other jurisdiction of incorporation or organization ) to Commission File Number : 001-39649 GATOS SILVER GATOS SILVER , INC . ( Exact name of registrant as specified in its charter ) Title of each class Common Stock , par value $ 0.001 per share 8400 E. Crescent Parkway , Suite 600 Greenwood Village , CO 80111 ( Address of principal executive offices ) ( Zip Code ) ( 303 ) 784-5350 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading symbol ( s ) GATO 27-2654848 ( I.R.S. Employer Identification No. ) Name of each exchange on which registered New York Stock Exchange Toronto Stock Exchange 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 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 > 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 Exchange Act ) . Yes No As of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , there was no public market for the registrant's common stock . The registrant's common stock began trading on the New York Stock Exchange and the Toronto Stock Exchange on October 28 , 2020. The aggregate market value of voting and non - voting common equity held by non - affiliates of the registrant , based on the closing price of the registrant's common stock on the New York Stock Exchange on March 23 , 2021 , was $ 326,610,768 . As of March 23 , 2021 , the number of shares of Registrant's common stock outstanding was 59,409,052 . DOCUMENTS INCORPORATED BY REFERENCE Certain information required by Part III of this Form 10 - K is incorporated by reference from the registrant's definitive proxy statement for the 2021 Annual Meeting of Stockholders which will be filed pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this report .