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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 Commission File No .: 1-36691 Booking Holdings Inc. ( Exact name of Registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) Title of Each Class : Common Stock par value $ 0.008 per share 0.800 % Senior Notes Due 2022 2.150 % Senior Notes Due 2022 2.375 % Senior Notes Due 2024 1.800 % Senior Notes Due 2027 800 Connecticut Avenue Norwalk , Connecticut 06854 ( address of principal executive offices ) Registrant's telephone number , including area code : ( 203 ) 299-8000 06-1528493 ( I.R.S. Employer Identification Number ) Securities Registered Pursuant to Section 12 ( b ) of the Act : Trading Symbol BKNG BKNG 22A BKNG 22 BKNG 24 BKNG 27 Securities Registered Pursuant to Section 12 ( g ) of the Act : None . No Indicate check mark if the registrant is a well - known seasoned issuer , 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 No 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 ( 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 No Name of Each Exchange on which Registered : The NASDAQ Global Select Market The NASDAQ Stock Market LLC The NASDAQ Stock Market LLC The NASDAQ Stock Market LLC The NASDAQ Stock Market LLC 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 ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No Accelerated filer Indicate by check mark whether the 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 : Large accelerated filer Smaller reporting company Emerging growth 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 the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No The aggregate market value of common stock held by non - affiliates of Booking Holdings Inc. at June 30 , 2020 was approximately $ 65.0 billion based upon the closing price reported for such date on the NASDAQ Global Select Market . For purposes of this disclosure , shares of common stock held by executive officers and directors of Booking Holdings Inc. on June 30 , 2020 have been excluded because such persons may be deemed to be affiliates of Booking Holdings Inc. This determination of affiliate status is not necessarily a conclusive determination for other purposes . The number of outstanding shares of Booking Holdings Inc.'s common stock was 40,961,796 at February 17 , 2021 .