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10/17/25 , 2:28 PM OR ☐ 5 ☑ borr - 20201231 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 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ ☐ 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 Commission File Number : 001-39007 Borr Drilling Limited ( Exact name of registrant as specified in its charter ) Bermuda ( Jurisdiction of incorporation or organization ) S.E. Pearman Building 2nd Floor 9 Par - la - Ville Road Hamilton HM11 Bermuda +1 ( 441 ) 737-0152 ( Address of principal executive offices ) Georgina Sousa 2nd Floor 9 Par - la - Ville Road Hamilton HM11 Bermuda +1 ( 441 ) 737-0152 James A. McDonald Skadden , Arps , Slate , Meagher & Flom ( UK ) LLP 40 Bank Street , Canary Wharf London E14 5DS England +44 ( 0 ) 20 7519 7183 ( Name , Telephone , E - mail and / or Facsimile number and Address of Company Contact Person ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Common shares of par value $ 0.05 per share Trading Symbol BORR Name of Each Exchange on Which Registered The New York Stock Exchange https://www.sec.gov/Archives/edgar/data/1715497/000162828021008274/borr-20201231.htm 1/295