{"transactions":[{"id":1932311,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2023-04-03T21:28:35.000Z","date":"2023-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":2184,"price":18.68,"value":40797.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":172827,"source":{"system":"sec-edgar","filing":"0001127602-23-011961","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760223011961/form4.xml","form_type":"4"}},{"id":2062541,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2023-01-05T21:41:33.000Z","date":"2023-01-03","kind":"tax_withholding","acquired":false,"shares":3526,"price":14.01,"value":49399.26,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":175011,"source":{"system":"sec-edgar","filing":"0001127602-23-000892","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760223000892/form4.xml","form_type":"4"}},{"id":2147253,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-10-03T20:35:04.000Z","date":"2022-09-30","kind":"tax_withholding","acquired":false,"shares":4513,"price":14.17,"value":63949.21,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":178537,"source":{"system":"sec-edgar","filing":"0001127602-22-023252","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222023252/form4.xml","form_type":"4"}},{"id":2214626,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-07-05T20:27:37.000Z","date":"2022-07-01","kind":"tax_withholding","acquired":false,"shares":4512,"price":22.42,"value":101159.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":183050,"source":{"system":"sec-edgar","filing":"0001127602-22-018723","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222018723/form4.xml","form_type":"4"}},{"id":2308172,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-04-04T20:28:24.000Z","date":"2022-04-01","kind":"tax_withholding","acquired":false,"shares":4511,"price":43.52,"value":196318.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":187562,"source":{"system":"sec-edgar","filing":"0001127602-22-011174","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222011174/form4.xml","form_type":"4"}},{"id":2404278,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-02-11T01:16:51.000Z","date":"2022-02-09","kind":"sale","acquired":false,"shares":8173,"price":35.64,"value":291285.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.16 to $35.84 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."}],"balance_after":192073,"source":{"system":"sec-edgar","filing":"0001127602-22-004334","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222004334/form4.xml","form_type":"4"}},{"id":2404277,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-02-11T01:16:51.000Z","date":"2022-02-08","kind":"tax_withholding","acquired":false,"shares":1169,"price":34.88,"value":40774.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares withheld for payment of tax liability upon vesting of RSUs."}],"balance_after":200246,"source":{"system":"sec-edgar","filing":"0001127602-22-004334","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222004334/form4.xml","form_type":"4"}},{"id":2404276,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-02-11T01:16:51.000Z","date":"2022-02-08","kind":"grant","acquired":true,"shares":43004,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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, 6.25% of the RSUs will vest on April 1, 2022 and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2026. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan (the \"2017 Plan\"))."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The Reporting Person previously reported a prior award of performance-based RSUs in Table II of the Form 4 filed by the Reporting Person on February 12, 2021 (the \"Prior Form 4\"). These awards were amended by the Compensation Committee of the Issuer's Board of Directors on February 8, 2022 to revise the vesting terms thereunder from performance-based to time-based and therefore are being moved to Table I, consistent with prior grants of time-based RSUs by the Issuer to the Reporting Person. The total reported in Column 5 of this Form 4 includes the 10,530 time-based RSUs previously reported as performance-based RSUs in Table II of the Prior Form 4. Each such 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, 6.25% of the RSUs vested on each of April 1, 2021, July 1, 2021, October 1, 2021 and January 1, 2022, and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2025. Such vesting may be accelerated in connection with a Change of Control (as defined in the 2017 Plan)."}],"balance_after":201415,"source":{"system":"sec-edgar","filing":"0001127602-22-004334","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222004334/form4.xml","form_type":"4"}},{"id":2406346,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-02-09T22:12:43.000Z","date":"2022-02-08","kind":"sale","acquired":false,"shares":4521,"price":35.01,"value":158280.21,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.00 to $35.13 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."}],"balance_after":147881,"source":{"system":"sec-edgar","filing":"0001127602-22-003998","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222003998/form4.xml","form_type":"4"}},{"id":2406345,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-02-09T22:12:43.000Z","date":"2022-02-07","kind":"sale","acquired":false,"shares":200,"price":35.1,"value":7020.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.05 to $35.14 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."}],"balance_after":152402,"source":{"system":"sec-edgar","filing":"0001127602-22-003998","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222003998/form4.xml","form_type":"4"}},{"id":2443873,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-01-05T21:27:39.000Z","date":"2022-01-04","kind":"sale","acquired":false,"shares":300,"price":35.45,"value":10635.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.30 to $35.53 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."}],"balance_after":152602,"source":{"system":"sec-edgar","filing":"0001127602-22-000867","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222000867/form4.xml","form_type":"4"}},{"id":2443872,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-01-05T21:27:39.000Z","date":"2022-01-04","kind":"sale","acquired":false,"shares":18681,"price":34.63,"value":646923.03,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.28 to $35.27 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."}],"balance_after":152902,"source":{"system":"sec-edgar","filing":"0001127602-22-000867","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222000867/form4.xml","form_type":"4"}},{"id":2443871,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2022-01-05T21:27:39.000Z","date":"2022-01-03","kind":"tax_withholding","acquired":false,"shares":17786,"price":33.64,"value":598321.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":171583,"source":{"system":"sec-edgar","filing":"0001127602-22-000867","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760222000867/form4.xml","form_type":"4"}},{"id":2548857,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-10-05T21:56:11.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":4489,"price":31.17,"value":139922.13,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.00 to $31.55 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."}],"balance_after":189369,"source":{"system":"sec-edgar","filing":"0001127602-21-026725","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221026725/form4.xml","form_type":"4"}},{"id":2548856,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-10-05T21:56:11.000Z","date":"2021-10-01","kind":"tax_withholding","acquired":false,"shares":3581,"price":32.55,"value":116561.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":193858,"source":{"system":"sec-edgar","filing":"0001127602-21-026725","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221026725/form4.xml","form_type":"4"}},{"id":2639337,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-07-07T20:14:21.000Z","date":"2021-07-02","kind":"sale","acquired":false,"shares":4490,"price":25.73,"value":115527.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.40 to $26.33 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."}],"balance_after":197439,"source":{"system":"sec-edgar","filing":"0001127602-21-021677","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221021677/form4.xml","form_type":"4"}},{"id":2644601,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-07-02T20:28:47.000Z","date":"2021-07-01","kind":"tax_withholding","acquired":false,"shares":3582,"price":26.33,"value":94314.06,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":201929,"source":{"system":"sec-edgar","filing":"0001127602-21-021247","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221021247/form4.xml","form_type":"4"}},{"id":2714421,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-05-13T20:12:14.000Z","date":"2021-05-12","kind":"sale","acquired":false,"shares":732,"price":27.96,"value":20466.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.57 to $28.37 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."}],"balance_after":205511,"source":{"system":"sec-edgar","filing":"0001127602-21-016555","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221016555/form4.xml","form_type":"4"}},{"id":2752919,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-04-08T20:01:46.000Z","date":"2021-04-06","kind":"sale","acquired":false,"shares":4691,"price":25.25,"value":118447.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.04 to $25.47 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."}],"balance_after":206243,"source":{"system":"sec-edgar","filing":"0001127602-21-013480","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221013480/form4.xml","form_type":"4"}},{"id":2757757,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-04-05T21:33:42.000Z","date":"2021-04-01","kind":"tax_withholding","acquired":false,"shares":2648,"price":24.505,"value":64889.24,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":210934,"source":{"system":"sec-edgar","filing":"0001127602-21-013204","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221013204/form4.xml","form_type":"4"}},{"id":2863239,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Performance-Based Restricted Stock Units","published_at":"2021-02-12T22:16:06.000Z","date":"2021-02-10","kind":"grant","acquired":true,"shares":10530,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Each performance-based RSU (\"PSU\") represents a contingent right to receive one share of the Issuer's Class A Common Stock, based on the Issuer's total shareholder return (\"TSR\") compared to pre-established relative TSR goals, based on the median TSR of the TSR of the companies that comprise the S&P 500 Index as of the day before the applicable performance period, that were set by the Compensation Committee of the Issuer's Board of Directors. The aggregate number of shares issued may range from zero (0) shares to 200% of the target number of shares reported in columns 7 and 9 of this report."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Between zero (0) and 200% of one-half of the PSUs will vest, if at all, on each of December 31, 2023 and December 31, 2024. Such vesting may be accelerated in connection with a Change of Control (as defined in the 2017 Plan) or if the Reporting Person's service is terminated by the Issuer without Cause or by the Reporting Person for Good Reason (each as defined in the Reporting Person's PSU grant agreement). Any vested PSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Between zero (0) and 200% of one-half of the PSUs will vest, if at all, on each of December 31, 2023 and December 31, 2024. Such vesting may be accelerated in connection with a Change of Control (as defined in the 2017 Plan) or if the Reporting Person's service is terminated by the Issuer without Cause or by the Reporting Person for Good Reason (each as defined in the Reporting Person's PSU grant agreement). Any vested PSUs will settle within 60 days of the date of vesting."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"Each performance-based RSU (\"PSU\") represents a contingent right to receive one share of the Issuer's Class A Common Stock, based on the Issuer's total shareholder return (\"TSR\") compared to pre-established relative TSR goals, based on the median TSR of the TSR of the companies that comprise the S&P 500 Index as of the day before the applicable performance period, that were set by the Compensation Committee of the Issuer's Board of Directors. The aggregate number of shares issued may range from zero (0) shares to 200% of the target number of shares reported in columns 7 and 9 of this report."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Each performance-based RSU (\"PSU\") represents a contingent right to receive one share of the Issuer's Class A Common Stock, based on the Issuer's total shareholder return (\"TSR\") compared to pre-established relative TSR goals, based on the median TSR of the TSR of the companies that comprise the S&P 500 Index as of the day before the applicable performance period, that were set by the Compensation Committee of the Issuer's Board of Directors. The aggregate number of shares issued may range from zero (0) shares to 200% of the target number of shares reported in columns 7 and 9 of this report."}],"balance_after":10530,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":10530},"source":{"system":"sec-edgar","filing":"0001127602-21-005495","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221005495/form4.xml","form_type":"4"}},{"id":2863238,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Stock Option","published_at":"2021-02-12T22:16:06.000Z","date":"2021-02-10","kind":"grant","acquired":true,"shares":21904,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Subject to the Reporting Person's continuous service as an employee of the Issuer, 6.25% of the shares underlying the stock option will vest on April 1, 2021 and 6.25% of the shares underlying the stock option will vest on the last day of each three-month period thereafter until January 1, 2025. Such vesting may be accelerated in connection with a Change of Control (as defined in the 2017 Plan)."}],"balance_after":21904,"derivative":{"exercise_price":35.61,"expiration_date":"2031-02-10","underlying":"Class A Common Stock","underlying_shares":21904},"source":{"system":"sec-edgar","filing":"0001127602-21-005495","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221005495/form4.xml","form_type":"4"}},{"id":2863237,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-02-12T22:16:06.000Z","date":"2021-02-10","kind":"grant","acquired":true,"shares":21061,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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, 6.25% of the RSUs will vest on April 1, 2021 and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2025. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan (the \"2017 Plan\"))."}],"balance_after":213582,"source":{"system":"sec-edgar","filing":"0001127602-21-005495","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221005495/form4.xml","form_type":"4"}},{"id":2915576,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2021-01-06T21:44:15.000Z","date":"2021-01-04","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F6","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-21-001020","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221001020/form4.xml","form_type":"4"}},{"id":2915575,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-01-06T21:44:15.000Z","date":"2021-01-05","kind":"sale","acquired":false,"shares":13289,"price":32.02,"value":425513.78,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.69 to $32.42 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."}],"balance_after":192521,"source":{"system":"sec-edgar","filing":"0001127602-21-001020","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221001020/form4.xml","form_type":"4"}},{"id":2915574,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-01-06T21:44:15.000Z","date":"2021-01-04","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":205810,"source":{"system":"sec-edgar","filing":"0001127602-21-001020","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221001020/form4.xml","form_type":"4"}},{"id":2915573,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2021-01-06T21:44:15.000Z","date":"2021-01-04","kind":"tax_withholding","acquired":false,"shares":5839,"price":31.73,"value":185271.47,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":197562,"source":{"system":"sec-edgar","filing":"0001127602-21-001020","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760221001020/form4.xml","form_type":"4"}},{"id":2962748,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-12-01T21:14:08.000Z","date":"2020-11-30","kind":"sale","acquired":false,"shares":2465,"price":25.02,"value":61674.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.06 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."}],"balance_after":203401,"source":{"system":"sec-edgar","filing":"0001127602-20-030205","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220030205/form4.xml","form_type":"4"}},{"id":2964177,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-11-30T21:28:54.000Z","date":"2020-11-27","kind":"sale","acquired":false,"shares":140,"price":25.12,"value":3516.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.12 to $25.13 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."}],"balance_after":205866,"source":{"system":"sec-edgar","filing":"0001127602-20-030117","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220030117/form4.xml","form_type":"4"}},{"id":2964176,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-11-30T21:28:54.000Z","date":"2020-11-25","kind":"sale","acquired":false,"shares":2715,"price":25.02,"value":67929.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.10 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."}],"balance_after":206006,"source":{"system":"sec-edgar","filing":"0001127602-20-030117","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220030117/form4.xml","form_type":"4"}},{"id":3011628,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2020-10-06T22:24:27.000Z","date":"2020-10-02","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":8248,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-20-026629","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026629/form4.xml","form_type":"4"}},{"id":3011627,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-10-06T22:24:27.000Z","date":"2020-10-05","kind":"sale","acquired":false,"shares":3443,"price":22.45,"value":77295.35,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.95 to $22.70 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."}],"balance_after":208721,"source":{"system":"sec-edgar","filing":"0001127602-20-026629","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026629/form4.xml","form_type":"4"}},{"id":3011626,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-10-06T22:24:27.000Z","date":"2020-10-02","kind":"tax_withholding","acquired":false,"shares":5487,"price":21.97,"value":120549.39,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":212164,"source":{"system":"sec-edgar","filing":"0001127602-20-026629","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026629/form4.xml","form_type":"4"}},{"id":3011625,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-10-06T22:24:27.000Z","date":"2020-10-02","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":217651,"source":{"system":"sec-edgar","filing":"0001127602-20-026629","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026629/form4.xml","form_type":"4"}},{"id":3011624,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-10-06T22:24:27.000Z","date":"2020-10-02","kind":"sale","acquired":false,"shares":1879,"price":22.01,"value":41356.79,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.63 to $22.38 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."}],"balance_after":209403,"source":{"system":"sec-edgar","filing":"0001127602-20-026629","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026629/form4.xml","form_type":"4"}},{"id":3016237,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-10-02T20:02:55.000Z","date":"2020-10-01","kind":"tax_withholding","acquired":false,"shares":2998,"price":22.31,"value":66885.38,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":211282,"source":{"system":"sec-edgar","filing":"0001127602-20-026237","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220026237/form4.xml","form_type":"4"}},{"id":3074825,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-07-28T21:12:33.000Z","date":"2020-07-27","kind":"sale","acquired":false,"shares":10643,"price":25.5,"value":271396.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.04 to $25.82 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."}],"balance_after":214280,"source":{"system":"sec-edgar","filing":"0001127602-20-022179","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220022179/form4.xml","form_type":"4"}},{"id":3087494,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2020-07-07T22:57:10.000Z","date":"2020-07-02","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":16496,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-20-021276","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220021276/form4.xml","form_type":"4"}},{"id":3087493,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-07-07T22:57:10.000Z","date":"2020-07-02","kind":"tax_withholding","acquired":false,"shares":5487,"price":26.3,"value":144308.1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":216675,"source":{"system":"sec-edgar","filing":"0001127602-20-021276","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220021276/form4.xml","form_type":"4"}},{"id":3087492,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-07-07T22:57:10.000Z","date":"2020-07-02","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":224923,"source":{"system":"sec-edgar","filing":"0001127602-20-021276","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220021276/form4.xml","form_type":"4"}},{"id":3091805,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-07-02T22:55:49.000Z","date":"2020-07-01","kind":"tax_withholding","acquired":false,"shares":2997,"price":26,"value":77922.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":222162,"source":{"system":"sec-edgar","filing":"0001127602-20-021057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220021057/form4.xml","form_type":"4"}},{"id":3181638,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2020-04-06T20:02:18.000Z","date":"2020-04-03","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":24744,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-20-013310","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220013310/form4.xml","form_type":"4"}},{"id":3181637,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-04-06T20:02:18.000Z","date":"2020-04-03","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":229805,"source":{"system":"sec-edgar","filing":"0001127602-20-013310","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220013310/form4.xml","form_type":"4"}},{"id":3181636,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-04-06T20:02:18.000Z","date":"2020-04-03","kind":"tax_withholding","acquired":false,"shares":4646,"price":15.93,"value":74010.78,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":225159,"source":{"system":"sec-edgar","filing":"0001127602-20-013310","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220013310/form4.xml","form_type":"4"}},{"id":3183329,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-04-03T20:21:14.000Z","date":"2020-04-01","kind":"tax_withholding","acquired":false,"shares":1984,"price":17.19,"value":34104.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":221557,"source":{"system":"sec-edgar","filing":"0001127602-20-013119","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220013119/form4.xml","form_type":"4"}},{"id":3273892,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-02-13T23:25:47.000Z","date":"2020-02-12","kind":"grant","acquired":true,"shares":83176,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares issuable upon settlement of 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 January 1, 2022 and the remaining 50% of the RSUs will vest on January 1, 2024. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan)."}],"balance_after":223541,"source":{"system":"sec-edgar","filing":"0001127602-20-005356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220005356/form4.xml","form_type":"4"}},{"id":3273891,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-02-13T23:25:47.000Z","date":"2020-02-12","kind":"grant","acquired":true,"shares":44361,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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, 6.25% of the RSUs will vest on April 1, 2020 and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2024. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan)."}],"balance_after":140365,"source":{"system":"sec-edgar","filing":"0001127602-20-005356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220005356/form4.xml","form_type":"4"}},{"id":3318412,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2020-01-06T21:09:14.000Z","date":"2020-01-03","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":32992,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-20-001114","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220001114/form4.xml","form_type":"4"}},{"id":3318411,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-01-06T21:09:14.000Z","date":"2020-01-03","kind":"tax_withholding","acquired":false,"shares":3623,"price":36.35,"value":131696.05,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":87756,"source":{"system":"sec-edgar","filing":"0001127602-20-001114","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220001114/form4.xml","form_type":"4"}},{"id":3318410,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-01-06T21:09:14.000Z","date":"2020-01-03","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":96004,"source":{"system":"sec-edgar","filing":"0001127602-20-001114","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220001114/form4.xml","form_type":"4"}},{"id":3318409,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2020-01-06T21:09:14.000Z","date":"2020-01-02","kind":"tax_withholding","acquired":false,"shares":1379,"price":35.18,"value":48513.22,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":91379,"source":{"system":"sec-edgar","filing":"0001127602-20-001114","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760220001114/form4.xml","form_type":"4"}},{"id":3374478,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-11-12T21:20:29.000Z","date":"2019-11-08","kind":"sale","acquired":false,"shares":5301,"price":38,"value":201438.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."}],"balance_after":92758,"source":{"system":"sec-edgar","filing":"0001127602-19-032518","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219032518/form4.xml","form_type":"4"}},{"id":3396664,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2019-10-07T20:21:44.000Z","date":"2019-10-04","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":41240,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-19-030218","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219030218/form4.xml","form_type":"4"}},{"id":3396663,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-10-07T20:21:44.000Z","date":"2019-10-04","kind":"tax_withholding","acquired":false,"shares":5495,"price":30.29,"value":166443.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":89811,"source":{"system":"sec-edgar","filing":"0001127602-19-030218","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219030218/form4.xml","form_type":"4"}},{"id":3396662,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-10-07T20:21:44.000Z","date":"2019-10-04","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":98059,"source":{"system":"sec-edgar","filing":"0001127602-19-030218","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219030218/form4.xml","form_type":"4"}},{"id":3398496,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-10-03T20:15:07.000Z","date":"2019-10-01","kind":"tax_withholding","acquired":false,"shares":1769,"price":31.07,"value":54962.83,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":95306,"source":{"system":"sec-edgar","filing":"0001127602-19-029996","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219029996/form4.xml","form_type":"4"}},{"id":3463596,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-07-11T20:05:47.000Z","date":"2019-07-10","kind":"sale","acquired":false,"shares":5300,"price":38.06,"value":201718.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.00 to $38.11 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."}],"balance_after":97075,"source":{"system":"sec-edgar","filing":"0001127602-19-024380","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219024380/form4.xml","form_type":"4"}},{"id":3465914,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2019-07-08T20:14:17.000Z","date":"2019-07-03","kind":"exercise","acquired":false,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":49488,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8248},"source":{"system":"sec-edgar","filing":"0001127602-19-024099","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219024099/form4.xml","form_type":"4"}},{"id":3465913,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-07-08T20:14:17.000Z","date":"2019-07-03","kind":"tax_withholding","acquired":false,"shares":5495,"price":36.17,"value":198754.15,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":102375,"source":{"system":"sec-edgar","filing":"0001127602-19-024099","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219024099/form4.xml","form_type":"4"}},{"id":3465912,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-07-08T20:14:17.000Z","date":"2019-07-03","kind":"exercise","acquired":true,"shares":8248,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":107870,"source":{"system":"sec-edgar","filing":"0001127602-19-024099","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219024099/form4.xml","form_type":"4"}},{"id":3467976,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-07-03T19:00:48.000Z","date":"2019-07-01","kind":"tax_withholding","acquired":false,"shares":1770,"price":36.02,"value":63755.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":99622,"source":{"system":"sec-edgar","filing":"0001127602-19-023999","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219023999/form4.xml","form_type":"4"}},{"id":3559330,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-04-09T20:41:51.000Z","date":"2019-04-05","kind":"sale","acquired":false,"shares":5353,"price":41.33,"value":221239.49,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.90 to $41.70 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."}],"balance_after":101392,"source":{"system":"sec-edgar","filing":"0001127602-19-015114","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219015114/form4.xml","form_type":"4"}},{"id":3561332,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Restricted Stock Units","published_at":"2019-04-05T20:40:41.000Z","date":"2019-04-04","kind":"exercise","acquired":false,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F4","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":57736,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8252},"source":{"system":"sec-edgar","filing":"0001127602-19-014939","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219014939/form4.xml","form_type":"4"}},{"id":3561331,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-04-05T20:40:41.000Z","date":"2019-04-04","kind":"tax_withholding","acquired":false,"shares":4731,"price":41.24,"value":195106.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":106745,"source":{"system":"sec-edgar","filing":"0001127602-19-014939","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219014939/form4.xml","form_type":"4"}},{"id":3561330,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-04-05T20:40:41.000Z","date":"2019-04-04","kind":"exercise","acquired":true,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":111476,"source":{"system":"sec-edgar","filing":"0001127602-19-014939","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219014939/form4.xml","form_type":"4"}},{"id":3564811,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-04-03T20:45:36.000Z","date":"2019-04-02","kind":"sale","acquired":false,"shares":617,"price":40,"value":24680.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."}],"balance_after":103224,"source":{"system":"sec-edgar","filing":"0001127602-19-014643","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219014643/form4.xml","form_type":"4"}},{"id":3564810,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Chief Product Officer"}}],"security":"Class A Common Stock","published_at":"2019-04-03T20:45:36.000Z","date":"2019-04-01","kind":"tax_withholding","acquired":false,"shares":1172,"price":39.9,"value":46762.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":103841,"source":{"system":"sec-edgar","filing":"0001127602-19-014643","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219014643/form4.xml","form_type":"4"}},{"id":3653762,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2019-02-15T21:54:16.000Z","date":"2019-02-14","kind":"sale","acquired":false,"shares":6595,"price":39.97,"value":263602.15,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."}],"balance_after":105013,"source":{"system":"sec-edgar","filing":"0001127602-19-006363","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219006363/form4.xml","form_type":"4"}},{"id":3670384,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2019-02-07T22:20:28.000Z","date":"2019-02-06","kind":"grant","acquired":true,"shares":43725,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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, 6.25% of the RSUs will vest on April 1, 2019 and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2023. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan)."}],"balance_after":111608,"source":{"system":"sec-edgar","filing":"0001127602-19-004613","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219004613/form4.xml","form_type":"4"}},{"id":3700252,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Restricted Stock Units","published_at":"2019-01-08T21:48:25.000Z","date":"2019-01-04","kind":"exercise","acquired":false,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":65988,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8252},"source":{"system":"sec-edgar","filing":"0001127602-19-001637","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219001637/form4.xml","form_type":"4"}},{"id":3700251,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2019-01-08T21:48:25.000Z","date":"2019-01-04","kind":"exercise","acquired":true,"shares":8252,"price":33.19,"value":273883.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."}],"balance_after":67883,"source":{"system":"sec-edgar","filing":"0001127602-19-001637","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219001637/form4.xml","form_type":"4"}},{"id":3700250,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2019-01-08T21:48:25.000Z","date":"2019-01-04","kind":"tax_withholding","acquired":false,"shares":3773,"price":33.19,"value":125225.87,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":59631,"source":{"system":"sec-edgar","filing":"0001127602-19-001637","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219001637/form4.xml","form_type":"4"}},{"id":3704032,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2019-01-04T21:57:13.000Z","date":"2019-01-02","kind":"tax_withholding","acquired":false,"shares":435,"price":33.73,"value":14672.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":63404,"source":{"system":"sec-edgar","filing":"0001127602-19-001342","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760219001342/form4.xml","form_type":"4"}},{"id":3794432,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-10-09T20:19:03.000Z","date":"2018-10-05","kind":"sale","acquired":false,"shares":3093,"price":49.99,"value":154619.07,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.84 to $51.49 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."}],"balance_after":63839,"source":{"system":"sec-edgar","filing":"0001127602-18-029810","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218029810/form4.xml","form_type":"4"}},{"id":3795962,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Restricted Stock Units","published_at":"2018-10-05T20:22:14.000Z","date":"2018-10-04","kind":"exercise","acquired":false,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":74240,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8252},"source":{"system":"sec-edgar","filing":"0001127602-18-029634","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218029634/form4.xml","form_type":"4"}},{"id":3795961,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-10-05T20:22:14.000Z","date":"2018-10-04","kind":"exercise","acquired":true,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."}],"balance_after":66932,"source":{"system":"sec-edgar","filing":"0001127602-18-029634","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218029634/form4.xml","form_type":"4"}},{"id":3795960,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-10-05T20:22:14.000Z","date":"2018-10-04","kind":"tax_withholding","acquired":false,"shares":5504,"price":51.34,"value":282575.36,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":58680,"source":{"system":"sec-edgar","filing":"0001127602-18-029634","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218029634/form4.xml","form_type":"4"}},{"id":3798681,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-10-03T21:54:59.000Z","date":"2018-10-01","kind":"tax_withholding","acquired":false,"shares":556,"price":54.7,"value":30413.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":64184,"source":{"system":"sec-edgar","filing":"0001127602-18-029461","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218029461/form4.xml","form_type":"4"}},{"id":3840084,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-08-17T20:51:27.000Z","date":"2018-08-15","kind":"sale","acquired":false,"shares":3094,"price":50.54,"value":156370.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.21 to $51.01 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."}],"balance_after":64740,"source":{"system":"sec-edgar","filing":"0001127602-18-025694","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218025694/form4.xml","form_type":"4"}},{"id":3871802,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class B Common Stock","published_at":"2018-07-06T20:36:27.000Z","date":"2018-07-03","kind":"exercise","acquired":false,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":8252},"source":{"system":"sec-edgar","filing":"0001127602-18-022926","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022926/form4.xml","form_type":"4"}},{"id":3871801,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Restricted Stock Units","published_at":"2018-07-06T20:36:27.000Z","date":"2018-07-03","kind":"exercise","acquired":false,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock. The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering, and a service-based vesting requirement. Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021. Any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":82492,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8252},"source":{"system":"sec-edgar","filing":"0001127602-18-022926","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022926/form4.xml","form_type":"4"}},{"id":3871800,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-07-06T20:36:27.000Z","date":"2018-07-05","kind":"sale","acquired":false,"shares":3094,"price":35.72,"value":110517.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.09 to $35.99 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."}],"balance_after":67834,"source":{"system":"sec-edgar","filing":"0001127602-18-022926","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022926/form4.xml","form_type":"4"}},{"id":3871799,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-07-06T20:36:27.000Z","date":"2018-07-03","kind":"exercise","acquired":true,"shares":8252,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":70928,"source":{"system":"sec-edgar","filing":"0001127602-18-022926","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022926/form4.xml","form_type":"4"}},{"id":3871798,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-07-06T20:36:27.000Z","date":"2018-07-03","kind":"tax_withholding","acquired":false,"shares":5503,"price":35.52,"value":195466.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units (\"RSUs\")."}],"balance_after":62676,"source":{"system":"sec-edgar","filing":"0001127602-18-022926","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022926/form4.xml","form_type":"4"}},{"id":3875047,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"officer":true,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-07-03T20:42:22.000Z","date":"2018-06-29","kind":"tax_withholding","acquired":false,"shares":556,"price":34.74,"value":19315.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares withheld for payment of tax liability upon vesting of restricted stock units."}],"balance_after":68179,"source":{"system":"sec-edgar","filing":"0001127602-18-022656","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000112760218022656/form4.xml","form_type":"4"}},{"id":3928176,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-05-17T20:31:21.000Z","date":"2018-05-15","kind":"sale","acquired":false,"shares":16798,"price":31.62,"value":531152.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.43 to $31.83 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."}],"balance_after":68735,"source":{"system":"sec-edgar","filing":"0000899243-18-013218","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318013218/doc4.xml","form_type":"4"}},{"id":3963204,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-04-16T21:12:25.000Z","date":"2018-04-13","kind":"sale","acquired":false,"shares":9948,"price":33.23,"value":330572.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.55 to $33.75 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."}],"balance_after":85533,"source":{"system":"sec-edgar","filing":"0000899243-18-010211","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010211/doc4.xml","form_type":"4"}},{"id":3963996,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Restricted Stock Units","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":false,"shares":20628,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Such RSUs convert into shares of Class A common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"On October 11, 2017, the Reporting Person was granted 66,000 RSUs convertible into shares of Class A common stock.  The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the IPO, and a service-based vesting requirement.  Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021.  Currently vested RSUs settled 180 days after the date the liquidity-based vesting requirement was satisfied (April 11, 2018).  Thereafter, any vested RSUs will settle within 60 days of the date of vesting.  The Reporting Person has elected to report the remaining unvested 45,372 shares of Class A common stock underlying this RSU on Table I on subsequent reports (see footnote 2)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"On October 11, 2017, the Reporting Person was granted 66,000 RSUs convertible into shares of Class A common stock.  The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the IPO, and a service-based vesting requirement.  Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021.  Currently vested RSUs settled 180 days after the date the liquidity-based vesting requirement was satisfied (April 11, 2018).  Thereafter, any vested RSUs will settle within 60 days of the date of vesting.  The Reporting Person has elected to report the remaining unvested 45,372 shares of Class A common stock underlying this RSU on Table I on subsequent reports (see footnote 2)."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":20628},"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963995,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class B Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":false,"shares":41256,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":41256},"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963994,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class B Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":true,"shares":41256,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder and has no expiration date."}],"balance_after":41256,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":41256},"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963993,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Restricted Stock Units","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":false,"shares":41256,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Such RSUs convert into shares of Class B common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock.  The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering (the \"IPO\"), and a service-based vesting requirement.  Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021.  Currently vested RSUs settled 180 days after the date the liquidity-based vesting requirement was satisfied (April 11, 2018).  Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On October 11, 2017, the Reporting Person was granted 132,000 RSUs convertible into shares of Class B common stock.  The RSUs are subject to a liquidity-based vesting requirement, which was satisfied in connection with the Issuer's initial public offering (the \"IPO\"), and a service-based vesting requirement.  Subject to the Reporting Person's continued employment, 25% of the RSUs vested on January 4, 2018 and 6.25% of the RSUs vest (or have vested, as applicable) on the last day of each three-month period thereafter until January 4, 2021.  Currently vested RSUs settled 180 days after the date the liquidity-based vesting requirement was satisfied (April 11, 2018).  Thereafter, any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":90744,"derivative":{"underlying":"Class B Common Stock","underlying_shares":41256},"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963992,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-12","kind":"sale","acquired":false,"shares":6850,"price":33.89,"value":232146.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F9","text":"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.41 to $34.35 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."}],"balance_after":95481,"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963991,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"tax_withholding","acquired":false,"shares":24925,"price":38.06,"value":948645.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld for payment of tax liability upon vesting of RSUs."}],"balance_after":102331,"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963990,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":true,"shares":20628,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The reported transaction represents the conversion of restricted stock units (\"RSUs\") into shares of Class A common stock.  The Reporting Person has previously reported the October 11, 2017 award of RSUs convertible into shares of Class A common stock in Table II of Form 4.  The total reported in Column 5 includes the 64,122 previously reported unvested RSUs convertible into shares of Class A common stock and 63,134 shares of Class A common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Such RSUs convert into shares of Class A common stock on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reported transaction represents the conversion of restricted stock units (\"RSUs\") into shares of Class A common stock.  The Reporting Person has previously reported the October 11, 2017 award of RSUs convertible into shares of Class A common stock in Table II of Form 4.  The total reported in Column 5 includes the 64,122 previously reported unvested RSUs convertible into shares of Class A common stock and 63,134 shares of Class A common stock."}],"balance_after":127256,"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":3963989,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-04-13T22:33:09.000Z","date":"2018-04-11","kind":"exercise","acquired":true,"shares":41256,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the conversion of Class B common stock into Class A common stock at the Reporting Person's election."}],"balance_after":61256,"source":{"system":"sec-edgar","filing":"0000899243-18-010152","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318010152/doc4.xml","form_type":"4"}},{"id":4020062,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Product"}}],"security":"Class A Common Stock","published_at":"2018-03-02T23:13:20.000Z","date":"2018-02-28","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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 Issuer's Class A Common Stock. Subject to the reporting person's continuous service as an employee of the Issuer, 6.25% of the RSUs will vest on April 1, 2018 and 6.25% of the RSUs will vest on the last day of each three-month period thereafter until January 1, 2022. Such vesting may be accelerated in connection with a Change of Control (as defined in the Issuer's Omnibus Incentive Compensation Plan)."}],"balance_after":20000,"source":{"system":"sec-edgar","filing":"0000899243-18-006205","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000089924318006205/doc4.xml","form_type":"4"}},{"id":4183921,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, Product"}}],"security":"Restricted Stock Unit","published_at":"2017-10-18T18:14:34.000Z","date":"2017-10-11","kind":"grant","acquired":true,"shares":132000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F4","text":"Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the reporting person or automatically either upon the transfer of such share of Class B Common Stock, except for certain events described in the Issuer's amended and restated certificate of incorporation (the \"Certificate\"), or upon the date falling after the first to occur of the death of Langley Steinert, Langley Steinert's voluntary termination of all employment with the Issuer and service on the Issuer's board of directors or the sum of the number of shares of the Issuer's capital stock held by Langley Steinert, by any Family Member of Langley Steinert, and by any Permitted Entity of Langley Steinert (as such terms are defined in the Certificate),"},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F5","text":"assuming the exercise and settlement in full of all outstanding options and convertible securities and calculated on an as-converted to Class A Common Stock basis, being less than 9,091,484 shares."}],"balance_after":132000,"derivative":{"underlying":"Class B Common Stock","underlying_shares":132000},"source":{"system":"sec-edgar","filing":"0001104659-17-062742","document":"a4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000110465917062742/a4a.xml","form_type":"4/A","original_submission_date":"2017-10-13"}},{"id":4183920,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, Product"}}],"security":"Restricted Stock Unit","published_at":"2017-10-18T18:14:34.000Z","date":"2017-10-11","kind":"grant","acquired":true,"shares":66000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":66000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":66000},"source":{"system":"sec-edgar","filing":"0001104659-17-062742","document":"a4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000110465917062742/a4a.xml","form_type":"4/A","original_submission_date":"2017-10-13"}},{"id":4186807,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, Product"}}],"security":"Restricted Stock Unit","published_at":"2017-10-13T23:35:28.000Z","date":"2017-10-11","kind":"grant","acquired":true,"shares":132000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Registration Statement for the registration of its Class A Common Stock in its IPO, and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class B Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the 2015 Plan). Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F4","text":"Upon the closing of the IPO, each share of Class B Common Stock will be convertible into one share of Class A Common Stock at the option of the reporting person or automatically upon the transfer of such share of Class B Common Stock, except for certain events described in the Issuer's amended and restated certificate of incorporation then in effect (the \"Certificate\"), and upon the date falling after the first to occur of the death of the reporting person's voluntary termination of all employment with the Issuer and service on the Issuer's board of directors or the sum of the number of shares of the Issuer's capital stock held by Langley Steinert, by any Family Member of Langley Steinert, and by any Permitted Entity of Langley Steinert (as such terms are defined in the Certificate),"},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F5","text":"assuming the exercise and settlement in full of all outstanding options and convertible securities and calculated on an as-converted to Class A Common Stock basis, being less than 9,091,484."}],"balance_after":132000,"derivative":{"underlying":"Class B Common Stock","underlying_shares":132000},"source":{"system":"sec-edgar","filing":"0001104659-17-062192","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000110465917062192/a4.xml","form_type":"4"}},{"id":4186806,"issuer":{"id":4203,"kind":"organization","name":"CarGurus, Inc.","symbol":"CARG"},"owners":[{"id":114859,"kind":"person","name":"Caputo Thomas Michael","position":1,"cik":"0001719192","reported_name":"Caputo Thomas Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, Product"}}],"security":"Restricted Stock Unit","published_at":"2017-10-13T23:35:28.000Z","date":"2017-10-11","kind":"grant","acquired":true,"shares":66000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock units (\"RSUs\") granted to the reporting person are subject to a liquidity-based vesting requirement, which was satisfied upon effectiveness of the Issuer's Registration Statement on Form S-1 (Form 333-220495) (the \"Registration Statement\") for the registration of its Class A Common Stock in its initial public offering (the \"IPO\"), and a service-based vesting requirement. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. Subject to the reporting person's continued employment, 25% of the RSUs vest on January 4, 2018 and 6.25% of the RSUs vest on the last day of each three month period thereafter until January 4, 2021. The RSUs are also subject to certain acceleration of vesting provisions in connection with the occurrence of a transaction (as defined in the Issuer's Amended and Restated 2015 Equity Incentive Plan (the \"2015 Plan\"))."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Currently vested RSUs will settle 180 days after the date the liquidity-based vesting requirement was satisfied. Thereafter, any vested RSUs will settle within 60 days of the date of vesting."}],"balance_after":66000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":66000},"source":{"system":"sec-edgar","filing":"0001104659-17-062192","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1494259/000110465917062192/a4.xml","form_type":"4"}}]}