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✔ 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 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from_ Commission file number : 001-36211 Noble Corporation ( Exact name of registrant as specified in its charter ) Cayman Islands ( State or other jurisdiction of incorporation or organization ) to 13135 Dairy Ashford , Suite 800 , Sugar Land , Texas , 77478 ( Address of principal executive offices ) ( Zip Code ) Registrant's Telephone Number , Including Area Code : ( 281 ) 276-6100 Noble Holding Corporation plc ( Former name or former address , if changed since last report ) Commission file number : 001-31306 Cayman Islands ( State or other jurisdiction of incorporation or organization ) Noble Finance Company ( Exact name of registrant as specified in its charter ) 98-1575532 ( I.R.S. employer identification number ) Securities registered pursuant to Section 12 ( b ) of the Act : None 13135 Dairy Ashford , Suite 800 , Sugar Land , Texas 77478 ( Address of principal executive offices ) ( Zip Code ) Registrant's Telephone Number , Including Area Code : ( 281 ) 276-6100 98-0366361 ( I.R.S. employer identification number ) Noble Corporation Suite 3D Landmark Square , 64 Earth Close , P.O. Box 31327 George Town , Grand Cayman , Cayman Islands , KY1-1206 ( Address of principal executive offices ) ( Zip Code ) Registrant's Telephone Number , Including Area Code : ( 345 ) 938-0293 ( Former name or former address , if changed since last report ) 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 p 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 p Indicate by check mark whether each 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 þ No Non - accelerated filer ☐ Indicate by check mark whether each registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes þ No Indicate by check mark whether each 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 . ( Check one ) : Noble Corporation Large accelerated filer Large accelerated filer Accelerated filer Accelerated filer Smaller reporting company Smaller reporting company Emerging growth company 0 Emerging growth company Noble Finance Company 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 each registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No p As of June 30 , 2020 , the aggregate market value of the registered shares of Noble Holding Corporation plc ( the Exchange Act predecessor to the registrant Noble Corporation ) held by non - affiliates was $ 79.5 million based on the closing price of such shares on such date as reported on the New York Stock Exchange . Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12 , 13 or 15 ( d ) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court . Yes þ No Number of shares outstanding at March 10 , 2021 : Noble Corporation - 43,536,636 Number of shares outstanding : Noble Finance Company — 261,246,093