Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
  HarbourVest Partners IX-Venture Fund L.P.
2. Date of Event Requiring Statement (Month/Day/Year)
11/18/2015
3. Issuer Name and Ticker or Trading Symbol
Wayfair Inc. [W]
(Last)
(First)
(Middle)
C/O OF HARBOURVEST PARTNERS LLC, ONE FINANCIAL CENTER, 44TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
See remarks
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BOSTON, MA 02111
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Class A Common Stock 16,275
D (1)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
HarbourVest Partners IX-Venture Fund L.P.
C/O OF HARBOURVEST PARTNERS LLC
ONE FINANCIAL CENTER, 44TH FLOOR
BOSTON, MA 02111
      See remarks
HarbourVest IX-Venture Associates L.P.
C/O HARBOURVEST PARTNERS LLC
ONE FINANCIAL CENTER, 44TH FLOOR
BOSTON, MA 02110
      See remarks
HarbourVest IX-Venture Associates LLC
C/O HARBOURVEST PARTNERS LLC
ONE FINANCIAL CENTER, 44TH FLOOR
BOSTON, MA 02110
      See remarks

Signatures

HarbourVest Partners IX-Venture Fund L.P., Harbourvest IX-Venture Associates L.P., its GP; By: HarbourVest IX-Venture Associates LLC, its GP; By: HarbourVest Partners, LLC, its Managing Member; By: /s/ Danielle Green, Chief Compliance Officer 11/24/2015
**Signature of Reporting Person Date

HarbourVest IX-Venture Associates L.P., By: HarbourVest IX-Venture Associates LLC, its GP; By HarbourVest Partners, LLC, its Managing Member; By: /s/ Danielle Green, Chief Compliance Officer 11/24/2015
**Signature of Reporting Person Date

Harbourvest IX-Venture Associates LLC; By: HarbourVest Partners, LLC, its Managing Member; By: /s/ Danielle Green, Chief Compliance Officer 11/24/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) The securities are owned solely by HarbourVest Partners IX-Venture Fund L.P. ("HV9"). HarbourVest IX-Associates LLC, which is the general partner of HarbourVest IX-Associates L.P. which is the general partner of HarbourVest Partners IX-Venture Fund L.P. may be deemed to have a beneficial interest in the securities held by HV9 and each disclaims beneficial ownership of the securities held by HV9, except to the extent of its pecuniary interest which is subject to indeterminable future events.
 
Remarks:
The reporting persons beneficially own less than 10% of the Issuer's Class A Common Stock, which is the class of equity securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the "Exchange Act').  This Form 3 is being filed as a precautionary measure because Ian Lane, a Managing Direct of HarbourVest Partners LLC, serves as a member of the  board of directors of the Issuer. The filing of this Form shall not be deemed an admission that the reporting persons are required to file reports pursuant to Section 16 of the Exchange Act.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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