Page 1

☐ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 20 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR ( 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 OR ☐ to SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 for the transition period from Commission file number 001-36848 Check - Cap Ltd. ( Exact name of the Registrant as specified in its charter ) Israel ( Jurisdiction of incorporation or organization ) Check - Cap Building 29 Abba Hushi Avenue P.O. Box 1271 Isfiya , 3009000 , Israel Title of each class ( Address of principal executive offices ) Alex Ovadia Chief Executive Officer 29 Abba Hushi Avenue P.O. Box 1271 Isfiya , 3009000 , Israel Telephone : +972 546706451 Email : Alex.Ovadia@check-cap.com ( Name , Telephone , E - mail and / or Facsimile number and Address of Company Contact Person ) Ordinary Shares , par value NIS 2.40 Warrants to purchase Ordinary Shares Securities registered or to be registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) CHEK CHEKZ Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : None Name of each exchange on which registered Nasdaq Capital Market Nasdaq Capital Market