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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 FORM 10 - K Delaware ( State or other jurisdiction of incorporation or organization ) For the fiscal year ended December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Title of each class Common Stock , $ 0.001 par value per share 2.375 % Sustainability Notes due 2026 3.125 % Notes due 2031 For the transition period from OR to Commission file number 001-33647 Mercado Libre , Inc. ( Exact name of Registrant as specified in its Charter ) Securities registered pursuant to Section 12 ( g ) of the Act : None Pasaje Posta 4789 , 6th Floor Buenos Aires , Argentina , C1430EKG ( Address of registrant's principal executive offices ) ( Zip Code ) ( +5411 ) 4640-8000 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) MELI MELI26 MELI31 1 98-0212790 ( I.R.S. Employer Identification Number ) Name of each exchange on which registered Nasdaq Global Select Market The Nasdaq Stock Market LLC The Nasdaq Stock Market LLC