Item 4. Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and our principal financial officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Exchange Act Rule 13a-15(e). Based on this evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report.

No change in our internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f), occurred during the three months ended March 31, 2023 that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

In 2022, we began a multi-year implementation to integrate and upgrade certain cross-brand global financial systems and processes, including but not limited to SAP S4 Hana ("SAP").

The first phase of this implementation became operational in 2022 at select financially immaterial entities at Booking.com. We expect most of the remaining Booking.com entities to go live in 2023 as part of the next phase of this implementation. As a result, there will be certain material changes to our processes and procedures that impact our internal control over financial reporting. We believe we are taking the necessary steps to monitor and maintain appropriate internal control over financial reporting.

While we expect this implementation to strengthen our internal financial controls by automating certain manual processes and standardizing business processes and reporting across our organization, management will continue assessing changes to our internal controls during subsequent periods.

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

A description of any material legal proceedings to which we are a party, and updates thereto, is included in Note 13 to our Unaudited Consolidated Financial Statements included in this Quarterly Report on Form 10-Q for the three months ended March 31, 2023, and is incorporated into this Part II, Item 1 by reference thereto.