X0306 4 2021-05-04 0001494259 CarGurus, Inc. CARG 0001842845 Gellot Yann Bruno 2 CANAL PARK 4TH FLOOR CAMBRIDGE MA 02141 1 VP, Finance & Accounting (PAO) Class A Common Stock 2021-05-04 4 A 0 2108 0 A 26391 D Represents shares issuable upon settlement of restricted stock units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. Subject to the Reporting Person's continuous service as an employee of the Issuer, 50% of the RSUs will vest on November 1, 2021 and the remaining 50% of the RSUs will vest on May 1, 2022. /s/ Kathleen Patton, as attorney-in-fact 2021-05-05