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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 Form 20 - F ( Mark One ) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR 12 ( g ) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☑ 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 or ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report For the transition period from to Commission file number : 001-36765 Momo Inc. ( Exact name of Registrant as specified in its charter ) N / A ( Translation of Registrant's name into English ) Cayman Islands ( Jurisdiction of incorporation or organization ) 20th Floor , Block B Tower 2 , Wangjing SOHO No. 1 Futongdong Street Chaoyang District , Beijing 100102 People's Republic of China ( Address of principal executive offices ) Jonathan Xiaosong Zhang , Chief Financial Officer Telephone : + 86-10-5731-0567 Email : ir@immomo.com 20th Floor , Block B Tower 2 , Wangjing SOHO No. 1 Futongdong Street Chaoyang District , Beijing 100102 People's Republic of China ( Name , Telephone , E - mail and / or Facsimile number and Address of Company Contact Person )