UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-36691 Booking Holdings Inc. (Exact name of Registrant as specified in its charter) (State or other jurisdiction of incorporation or ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-36691 Booking Holdings Inc. (Exact name of Registrant as specified in its charter) (State or other jurisdiction of incorporation o ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _____________________________________________________________________________________________ FORM 10-K Title of Each Class: Name of Each Exchange on which Registered: Common Stock, par value $0.008 per share The NASDAQ Global Select Market 0.800% Senior Notes Due 2022 New York Stock Exchange 2.150% Senior Notes Due 2022 New York Stock Exchange 2.375% Senior Notes Due 2024 New York Stock Exchange 1.800% Senior Notes Due 2027 New York St ...