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( Mark One ) 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 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 Commission file number : 001-37877 to The Bank of N.T. Butterfield & Son Limited ( Exact name of Registrant as specified in its charter ) Bermuda ( Jurisdiction of incorporation or organization ) 65 Front Street , Hamilton , HM 12 Bermuda ( Address of principal executive offices ) Shaun Morris , 65 Front Street , Hamilton , HM 12 Bermuda Telephone : ( 441 ) 295-1111 ; Fax : ( 441 ) 292-4365 E - mail : Shaun.Morris@Butterfieldgroup.com ( 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 Voting ordinary shares of par value BM $ 0.01 each Voting ordinary shares of par value BM $ 0.01 each Trading Symbol ( s ) NTB NTB.BH Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : None Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act : None Name of each exchange on which registered New York Stock Exchange Bermuda Stock Exchange Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report . As at December 31 , 2020 , there were 50,010,948 shares of the registrant's common stock outstanding . 1