Sec Form 4 Filing - Steinert Langley @ CarGurus, Inc. - 2020-03-17

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Steinert Langley 2. Issuer Name and Ticker or Trading Symbol CarGurus, Inc. [ CARG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) CEO and Chairman (Last) (First) (Middle) 2 CANAL PARK, 4TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 03/17/2020 (Street) CAMBRIDGE, MA02141 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 03/17/2020 C 334,801 ( 1 ) A $ 0 1,862,077 D Class A Common Stock 04/01/2020 F( 2 ) 3,471 D $ 17.19 1,834,594 D Class A Common Stock 255,602 I See Footnote ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 4 ) 03/17/2020 C 334,801 ( 1 ) ( 4 ) ( 4 ) Class A Common Stock 334,801 $ 0 17,888,451 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Steinert Langley 2 CANAL PARK, 4TH FLOOR CAMBRIDGE, MA02141 X X CEO and Chairman Signatures /s/ Kathleen Patton, as attorney-in-fact 04/03/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the conversion of Class B Common Stock into Class A Common Stock at the Reporting Person's election. ( 2 )Shares withheld for payment of tax liability upon vesting of restricted stock units. ( 3 )These shares are owned directly by The Langley Steinert Irrevocable Family Trust dated June 21, 2004, of which the Reporting Person's children are the beneficiaries. The Reporting Person may be deemed to have indirect ownership over such shares, but expressly disclaims beneficial ownership of such shares. ( 4 )Each share of Class B Common Stock has no expiration date and 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 transfers described in the Issuer's amended and restated certificate of incorporation, 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 Issuer's amended and restated certificate of incorporation), 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.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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