Item 1.01 Entry into a Material Definitive Agreement. Senior Notes On May 11, 2026, Booking Holdings Inc. (the “ Company ”) executed three Officers’ Certificates (the “ Officers’ Certificates ”), in accordance with Sections 2.02 and 10.04 of the Indenture dated August 8, 2017 (the “ Base Indenture ” and, together with the Officers’ Certificates, the “ Indenture ”) between the Company and U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association), as trustee (the “ Trustee ”) and registrar, in connection with the sale of €600,000,000 aggregate principal amount of the Company’s 3.500% Senior Notes due 2030 (the “ 2030 Notes ”), €700,000,000 aggregate principal amount of the Company’s 4.000% Senior Notes due 2034 (the “ 2034 Notes ”), and €600,000,000 aggregate principal amount of the Company’s 4.500% Senior Notes due 2039 (the “ 2039 Notes ” and, together with the 2030 Notes and the 2034 Notes, the “ Senior Notes ”). The 2030 Notes will mature on May 11, 2030, the 2034 Notes will mature on May 11, 2034, and the 2039 Notes will mature on May 11, 2039, in each case unless earlier redeemed or repurchased. The Senior Notes are the Company’s general senior unsecured obligations and rank equally with the Company’s other senior unsecured obligations. Pursuant to an Agency Agreement dated as of May 11, 2026 (the “ Agency Agreement ”) relating to the Senior Notes, the Company has appointed U.S. Bank Europe DAC, UK Branch, to act as paying agent for the Senior Notes and U.S. Bank Trust Company, National Association to act as transfer agent for the Senior Notes. The Company will pay interest on the 2030 Notes at an annual rate of 3.500% payable on May 11 of each year, beginning on May 11, 2027. The Company will pay interest on the 2034 Notes at an annual rate of 4.000% payable on May 11 of each year, beginning on May 11, 2027. The Company will pay interest on the 2039 Notes at an annual rate of 4.500% payable on May 11 of each year, beginning on May 11, 2027. Prior to April 11, 2030, the date that is one month prior to the maturity date of the 2030 Notes (the “ 2030 Notes Par Call Date ”), the Company may redeem some or all of the 2030 Notes at a redemption price equal to the greater of the following amounts plus, in each case, accrued and unpaid interest thereon, if any, to, but excluding, the redemption date: (1) 100% of the aggregate principal amount of the 2030 Notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the 2030 Notes to be redeemed that would be due if such 2030 Notes matured on the 2030 Notes Par Call Date, not including any portion of the payments of interest accrued to the date of redemption, discounted to such redemption date on an annual basis at the Comparable Government Bond Rate (as defined in the Officers’ Certificate relating to the 2030 Notes), plus 15 basis points. The Company may also redeem some or all of the 2030 Notes on or after the 2030 Notes Par Call Date at 100% of the principal amount of the 2030 Notes, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, the Company may redeem the 2030 Notes in whole but not in part, at any time at the Company’s option, in the event of certain developments affecting U.S. taxation. Prior to February 11, 2034, the date that is three months prior to the maturity date of the 2034 Notes (the “ 2034 Notes Par Call Date ”), the Company may redeem some or all of the 2034 Notes at a redemption price equal to the greater of the following amounts plus, in each case, accrued and unpaid interest thereon, if any, to, but excluding, the redemption date: (1) 100% of the aggregate principal amount of the 2034 Notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the 2034 Notes to be redeemed that would be due if such 2034 Notes matured on the 2034 Notes Par Call Date, not including any portion of the payments of interest accrued to the date of redemption, discounted to such redemption date on an annual basis at the Comparable Government Bond Rate (as defined in the Officers’ Certificate relating to the 2034 Notes), plus 20 basis points. The Company may also redeem some or all of the 2034 Notes on or after the 2034 Notes Par Call Date at 100% of the principal amount of the 2034 Notes, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, the Company may redeem the 2034 Notes in whole but not in part, at any time at the Company’s option, in the event of certain developments affecting U.S. taxation. Prior to February 11, 2039, the date that is three months prior to the maturity date of the 2039 Notes (the “ 2039 Notes Par Call Date ”), the Company may redeem some or all of the 2039 Notes at a redemption price equal to the greater of the following amounts plus, in each case, accrued and unpaid interest thereon, if any, to, but excluding, the redemption date: (1) 100% of the aggregate principal amount of the 2039 Notes to be redeemed and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the 2039 Notes to be redeemed that would be due if such 2039 Notes matured on the 2039 Notes Par Call Date, not including any portion of the payments of interest accrued to the date of redemption, discounted to such redemption date on an annual basis at the Comparable Government Bond Rate (as defined in the Officers’ Certificate relating to the 2039 Notes), plus 20 basis points. The Company may also redeem some or all of the 2039 Notes on or after the 2039 Notes Par Call Date at 100% of the principal amount of the 2039 Notes, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, the Company may redeem the 2039 Notes in whole but not in part, at any time at the Company’s option, in the event of certain developments affecting U.S. taxation. The Indenture contains customary events of default with respect to the Senior Notes, including failure to make required payments, failure to comply with certain agreements or covenants, acceleration of certain other indebtedness, and certain events of bankruptcy and insolvency. Events of default under the Indenture arising from certain events of bankruptcy or insolvency will automatically cause the acceleration of the amounts due under the Senior Notes. If any other event of default under the Indenture occurs and is continuing with respect to a series of Senior Notes, the Trustee or the holders of at least 25% in aggregate principal amount of the then outstanding Senior Notes of such series may declare the acceleration of the amounts due under the Senior Notes of such series. The foregoing description of the Senior Notes is qualified in its entirety by reference to the full text of the Base Indenture, which was previously filed as Exhibit 4.4 to the Company’s shelf registration statement on Form S-3 (Registration File No. 333-273678) (the “ Registration Statement ”), the Form of 2030 Note, which is filed as Exhibit 4.1, the Form of 2034 Note, which is filed as Exhibit 4.2, the Form of 2039 Note, which is filed as Exhibit 4.3, the Officers’ Certificate relating to the 2030 Notes, which is filed as Exhibit 4.4, the Officers’ Certificate relating to the 2034 Notes, which is filed as Exhibit 4.5, the Officers’ Certificate relating to the 2039 Notes, which is filed as Exhibit 4.6, and the Agency Agreement, which is filed as Exhibit 4.7, each of which is incorporated by reference. Item 2.03 Creation of a Direct Financial Obligation or an Obligation Under an Off-Balance Sheet Arrangement of the Registrant. The information set forth under Item 1.01 of this Current Report on Form 8-K is incorporated by reference. Item 8.01 Other Events . Senior Notes Offering On May 5, 2026, the Company entered into an underwriting agreement (the “ Underwriting Agreement ”) with Citigroup Global Markets Limited, Deutsche Bank AG, London Branch, Goldman Sachs & Co. LLC and J.P. Morgan Securities plc, as representatives of the several underwriters named in Schedule II thereto (the “ Underwriters ”), pursuant to which the Company agreed to issue and sell to the Underwriters €1,900,000,000 aggregate principal amount of Senior Notes in a registered public offering (the “ Offering ”). The Offering was consummated pursuant to the Company’s Registration Statement. The Underwriting Agreement is filed as Exhibit 1.1, and is incorporated by reference. The Opinion of Cravath, Swaine & Moore LLP with respect to the validity of the Senior Notes is filed as Exhibit 5.1, and is incorporated by reference. This Current Report on Form 8-K and the exhibits hereto are incorporated by reference into the Registration Statement. Item 9.01 Financial Statements and Exhibits . (d) Exhibits Exhibit Description 1.1* Underwriting Agreement, dated May 5, 2026, among Booking Holdings Inc., Citigroup Global Markets Limited, Deutsche Bank AG, London Branch, Goldman Sachs & Co. LLC and J.P. Morgan Securities plc, as representatives of the several underwriters named in Schedule II thereto. 4.1 Form of 3.500% Senior Note due 2030. 4.2 Form of 4.000% Senior Note due 2034. 4.3 Form of 4.500% Senior Note due 2039. 4.4* Officers’ Certificate, dated May 11, 2026, with respect to the 3.500% Senior Note due 2030 issued pursuant to the Base Indenture. 4.5* Officers’ Certificate, dated May 11, 2026, with respect to the 4.000% Senior Note due 2034 issued pursuant to the Base Indenture. 4.6* Officers’ Certificate, dated May 11, 2026, with respect to the 4.500% Senior Note due 2039 issued pursuant to the Base Indenture. 4.7 Agency Agreement, dated as of May 11, 2026, by and between Booking Holdings Inc., as issuer, U.S. Bank Europe DAC, UK Branch, as paying agent, and U.S. Bank Trust Company, National Association, as transfer agent, registrar and trustee. 5.1 Opinion of Cravath, Swaine & Moore LLP, relating to the Senior Notes. 23.1 Consent of Cravath, Swaine & Moore LLP (included as part of Exhibit 5.1 to this Current Report). 104 Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. *Schedules or similar attachments have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company hereby undertakes to furnish copies of any of the omitted schedules or similar attachments upon request by the Securities and Exchange Commission. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. BOOKING HOLDINGS INC. By: /s/ Peter J. Millones Name: Peter J. Millones Title: Executive Vice President and General Counsel Date: May 11, 2026