X0306 4 2021-09-01 0001494259 CarGurus, Inc. CARG 0001801139 Eldridge Andrea Lee 2 CANAL PARK 4TH FLOOR CAMBRIDGE MA 02140 1 Chief People Officer Class A Common Stock 2021-09-01 4 F 0 226 30.68 D 46772 D Class A Common Stock 2021-09-02 4 S 0 160 30.44 D 46612 D Shares withheld for payment of tax liability upon vesting of restricted stock units. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.06 to $30.82 per share, inclusive. Information regarding the number of shares sold at each separate price will be made available from the Reporting Person upon request by the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer. /s/ Kathleen Patton, as attorney-in-fact 2021-09-03