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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 ( 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_ ☑ ☐ OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from July 1 , 2020 to December 31 , 2020 OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Title of each class Date of event requiring this shell company report Commission file number 001-39633 Abcam plc ( Exact name of Registrant as specified in its charter ) Not Applicable ( Translation of Registrant's name into English ) United Kingdom ( Jurisdiction of incorporation or organization ) Discovery Drive Cambridge Biomedical Campus Cambridge , CB2 0AX United Kingdom ( Address of principal executive offices ) Alan Hirzel Chief Executive Officer Telephone : +44 ( 0 ) 1223 696000 Discovery Drive Cambridge Biomedical Campus Cambridge , CB2 0AX United Kingdom ( 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 Ordinary shares , nominal value of £ 0.002 per share * Trading Symbol ( s ) ABCM Name of each exchange on which registered The Nasdaq Global Select Market * The ordinary shares are represented by American Depositary Shares , which are exempt from registration under Section 12 ( b ) of the Securities Exchange Act of 1934 , as amended , pursuant to Rule 12a - 8 thereunder .