FORM 4
[ X ] 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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

SC XI MANAGEMENT LLC 		2. Issuer Name and Ticker or Trading Symbol

QUANTENNA COMMUNICATIONS INC [ QTNA ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      __ X __ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

2800 SAND HILL ROAD, SUITE 101 		3. Date of Earliest Transaction (MM/DD/YYYY)

11/14/2017
(Street)

MENLO PARK, CA 94025
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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
Common Stock   11/14/2017     J (1)    563332   D $0.00   1689996   I   By Sequoia Capital XI, L.P.   (2)
Common Stock   11/14/2017     J (1)    61285   D $0.00   183856   I   By Sequoia Capital XI Principals Fund, LLC   (2)
Common Stock   11/14/2017     J (1)    17793   D $0.00   53380   I   By Sequoia Technology Partners XI, L.P.   (2)
Common Stock   11/14/2017     J (1)    468048   D $0.00   1279816   I   By SC US GF V Holdings, LTD   (3)
Common Stock                  124327   I   By Sequoia Capital U.S. Growth Fund V, L.P.   (4)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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

Explanation of Responses:
(1)  Represents a pro rata in-kind distribution of Common Stock of the Issuer to partners or members and includes subsequent distributions by general partners or managing members to their respective partners or members.
(2)  SC XI Management, LLC ("SC XI Management") is the general partner of Sequoia Capital XI, L.P. ("SC XI") and Sequoia Technology Partners XI, L.P. ("STP XI"), and the managing member of Sequoia Capital XI Principals Fund, LLC ("SC XI PF"). Douglas Leone and Michael Moritz are the managing members of SC XI Management. As a result, each of Messrs. Leone and Moritz and SC XI Management may be deemed to share voting and dispositive power with respect to the shares held by SC XI, STP XI and SC XI PF. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of his or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
(3)  SC US (TTGP), Ltd. ("SC US TTGP") is the general partner of SCGF V Management, L.P. ("GF V Management"), which is the general partner of each of Sequoia Capital U.S. Growth Fund V, L.P. ("SC Growth") and Sequoia Capital USGF Principals Fund V, L.P. ("SC USGF"). SC Growth and SC USGF together own 100% of the outstanding ordinary shares of SC US GF V Holdings, Ltd. ("SC Holdings"). As a result, SC US TTGP, SC Growth, SC USGF and GF V Management may be deemed to share voting and dispositive power with respect to the shares held by SC Holdings. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
(4)  SC US TTGP is the general partner of GF V Management, which is the general partner of SC Growth. As a result, SC US TTGP and GF V Management may be deemed to share voting and dispositive power with respect to the shares held by SC Growth. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Remarks:
Form 2 of 2

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
SC XI MANAGEMENT LLC
2800 SAND HILL ROAD
SUITE 101
MENLO PARK, CA 94025
X

MORITZ MICHAEL J
2800 SAND HILL ROAD
SUITE 101
MENLO PARK, CA 94025
X


Signatures
/s/ Jung Yeon Son, by power of attorney for Michael J. Moritz 11/16/2017
** Signature of Reporting Person Date


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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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