Sec Form 4 Filing - Kumin Michael Andrew @ Wayfair Inc. - 2017-08-28

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 Kumin Michael Andrew 2. Issuer Name and Ticker or Trading Symbol Wayfair Inc. [ W] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O WAYFAIR INC., 4 COPLEY PLACE,, 7TH FLOOR, 3. Date of Earliest Transaction (MM/DD/YY) 08/28/2017 (Street) BOSTON, MA02116 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 08/28/2017 J( 1 ) 2,651,576 D $ 0 0 I By Great Hill Equity Partners IV, L.P. ( 2 ) Class A Common Stock 08/28/2017 J( 1 ) 593,992 A $ 0 593,992 I By Great Hill Partners GP IV, L.P. ( 3 ) Class A Common Stock 08/28/2017 J( 4 ) 593,992 D $ 0 0 I By Great Hill Partners GP IV, L.P. ( 3 ) Class A Common Stock 08/28/2017 J( 4 ) 67,539 A $ 0 156,439 D Class A Common Stock 08/30/2017 S 7,231 D $ 68.47 0 I Great Hill Investors, LLC ( 5 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kumin Michael Andrew C/O WAYFAIR INC., 4 COPLEY PLACE, 7TH FLOOR, BOSTON, MA02116 X Signatures /s/ Laurie T. Gerber, as attorney-in-fact for Michael A. Kumin 08/30/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Great Hill Equity Partners IV, L.P made a pro rata distribution for no consideration of an aggregate of 2,651,576 shares of Class A Common Stock of Wayfair Inc., 593,992 of which were distributed to its general partner , and 2,057,584 of which were distributed to its limited partners, on August 28, 2017. ( 2 )These securities are owned by Great Hill Equity Partners IV, L.P. Great Hill Partners GP IV, L.P. is the sole general partner of Great Hill Equity Partners IV, L.P. and GHP IV, LLC is the sole general partner of Great Hill Partners GP IV, L.P. GHP IV, LLC is controlled by Christopher S. Gaffney, John G. Hayes, Michael A. Kumin, Mark D. Taber and Matthew T. Vettel and, as such, they may be deemed to indirectly beneficially own the shares beneficially owned by Great Hill Equity Partners IV, L.P. Each of Messrs. Gaffney, Hayes, Kumin, Taber and Vettel disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. ( 3 )These securities are owned by Great Hill Partners GP IV, L.P. GHP IV, LLC is the sole general partner of Great Hill Partners GP IV, L.P. GHP IV, LLC is controlled by Christopher S. Gaffney, John G. Hayes, Michael A. Kumin, Mark D. Taber and Matthew T. Vettel and, as such, they may be deemed to indirectly beneficially own the shares beneficially owned by Great Hill Equity Partners IV, L.P. Each of Messrs. Gaffney, Hayes, Kumin, Taber and Vettel disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. ( 4 )Great Hill Partners GP IV, L.P. made a further pro rata distribution for no consideration of an aggregate of 593,992 shares of Class A Common Stock of Wayfair, Inc., 67,539 of which were distributed to Michael A. Kumin, on August 28, 2017. ( 5 )These securities are owned by Great Hill Investors, LLC. Great Hill Investors, LLC is controlled by Christopher S. Gaffney, John G. Hayes, Michael A. Kumin, Mark D. Taber and Matthew T. Vettel and, as such, they may be deemed to indirectly beneficially own the shares beneficially owned by Great Hill Investors, LLC. Each of Messrs. Gaffney, Hayes, Kumin, Taber and Vettel disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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