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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 to England and Wales ( State or other jurisdiction of incorporation or organization ) Commission file number 001-35961 Title of each class Class A ordinary shares Class B ordinary shares Class C ordinary shares Griffin House 161 Hammersmith Rd London Liberty Global plc ( Exact name of Registrant as specified in its charter ) United Kingdom ( Address of principal executive offices ) LIBERTY GLOBAL Accelerated Filer Registrant's telephone number , including area code : +44.208.483.6449 or 303.220.6600 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) 0 LBTYA LBTYB LBTYK 98-1112770 ( I.R.S. Employer Identification No. ) W6 8BS ( Zip Code ) 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 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 □ Indicate by check mark whether the 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 and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No □ No Name of each exchange on which registered Nasdaq Global Select Market Nasdaq Global Select Market Nasdaq Global Select Market Indicate by check mark whether the 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 . Yes No □ Indicate by check mark whether the Registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or emerging growth company . See definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Check one : Non - Accelerated Filer No Smaller Reporting Company Emerging Growth Company Large 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 the Registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes □ No State the aggregate market value of the voting and non - voting common equity held by non - affiliates , computed by reference to the price at which the common equity was last sold , or the average bid and ask price of such common equity , as of the last business day of the Registrant's most recently completed second fiscal quarter : $ 12.3 billion . The number of outstanding ordinary shares of Liberty Global plc as of January 31 , 2021 was : 181,355,249 shares of class A ordinary shares , 12,561,444 shares of class B ordinary shares and 383,495,825 shares of class C ordinary shares . DOCUMENTS INCORPORATED BY REFERENCE Portions of the definitive proxy statement for the Registrant's 2021 Annual General Meeting of Shareholders are incorporated by reference in Part III of this Form 10 - K .