Park West Asset Management SC 13G Enphase Energy, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.    )*

ENPHASE ENERGY, INC.

(Name of Issuer)

Common Stock, $0.00001 par value per share

(Title of Class of Securities)

29355A107

(CUSIP Number)

February 11, 2019

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed:

[   ] Rule 13d-1(b)

[X] Rule 13d-1(c)

[   ] Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.  29355A107
(1) Names of Reporting Persons
	Park West Asset Management LLC
(2) Check the Appropriate Box if a Member of a Group			(a) [    ]
			(b) [    ]
(3) SEC Use Only
(4) Citizenship or Place of Organization
	Delaware
Number of Shares Beneficially Owned By Each Reporting Person With
		(5) Sole Voting Power:	0
		(6) Shared Voting Power:	5,704,401*
		(7) Sole Dispositive Power:	0
		(8) Shared Dispositive Power:	5,704,401*
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
	5,704,401*
(10) Check if the Aggregate Amount  in Row (9) Excludes Certain Shares (See Instructions):
	[    ]
(11) Percent of Class Represented by Amount in Row (9)
	5.4%*
(12) Type of Reporting Person
	IA

* See Item 4 for additional information.

CUSIP No.  29355A107
(1) Names of Reporting Persons
	Peter S. Park
(2) Check the Appropriate Box if a Member of a Group			(a) [    ]
			(b) [    ]
(3) SEC Use Only
(4) Citizenship or Place of Organization
	United States of America
Number of Shares Beneficially Owned By Each Reporting Person With
		(5) Sole Voting Power:	0
		(6) Shared Voting Power:	5,704,401*
		(7) Sole Dispositive Power:	0
		(8) Shared Dispositive Power:	5,704,401*
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
	5,704,401*
(10) Check if the Aggregate Amount  in Row (9) Excludes Certain Shares (See Instructions):
	[    ]
(11) Percent of Class Represented by Amount in Row (9)
	5.4%*
(12) Type of Reporting Person
	IN

* See Item 4 for additional information.

Item 1(a).  Name Of Issuer:   Enphase Energy, Inc. (the “Company”)
Item 1(b).  Address of Issuer’s Principal Executive Offices:
	47281 Bayside Parkway Fremont, California  94538
Item 2(a).  Name of Person Filing:
	This report on Schedule 13G (this “Schedule 13G”), is being jointly filed by (i) Park West Asset Management LLC, a Delaware limited liability company (“PWAM”) and (ii) Peter S. Park, as the sole member and manager of PWAM (“Mr. Park” and, collectively with PWAM, the “Reporting Persons”). PWAM is the investment manager to Park West Investors Master Fund, Limited, a Cayman Islands exempted company (“PWIMF”), and Park West Partners International, Limited, a Cayman Islands exempted company (“PWPI” and, collectively with PWIMF, the “PW Funds”).
Item 2(b).  Address of Principal Business Office or, if None, Residence:
	The address for the Reporting Persons is: 900 Larkspur Landing Circle, Suite 165, Larkspur, California 94939.
Item 2(c).  Citizenship:
	PWAM is organized under the laws of the State of Delaware. Mr. Park is a citizen of the United States.

Item 2(d).  Title of Class of Securities:

	Common Stock, $0.00001 par value per share (the “Common Stock”).
Item 2(e).  CUSIP No.:
	29355A107

Item 3.  If This Statement Is Filed Pursuant to Section 240.13d-1(b) or 240.13d-2(b) or (c), check whether the Person Filing is a:
	Not Applicable.
Item 4.  Ownership:
	As reported in the cover pages to this report, the ownership information with respect to the Reporting Persons is as follows:
	(a)     Amount Beneficially Owned:		5,704,401*
	(b)    Percent of Class:		5.4%*
	(c)     Number of Shares as to which such person has:
		(i)     Sole power to vote or to direct the vote:	0
		(ii)     Shared power to vote or to direct the vote:	5,704,401*
		(iii)     Sole power to dispose or to direct the disposition of:	0
		(iv)     Shared power to dispose or to direct the disposition of:	5,704,401*

  * Thisreport on Schedule 13G is being jointly filed by PWAM and Mr. Park.

The foregoing beneficial ownership percentages are based upon 106,321,821 shares of Common Stock, issued and outstanding as of December 3, 2018, as reported by the Company in its Registration Statement on Form S-3, filed with the Securities and Exchange Commission on December 13, 2018. 

As of the date of the event requiring this filing, PWIMF held 5,159,319 shares of Common Stock and PWPI held 545,082 shares of Common Stock.

Item 5.  Ownership of Five Percent or Less of a Class
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:  [  ]
Item 6.  Ownership of More Than Five Percent on Behalf of Another Person
	Not Applicable.
Item 7.  Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person
	Not Applicable.

Item 8.  Identification and Classification of Members of the Group
	Not Applicable.
Item 9.  Notice of Dissolution of Group
	Not Applicable.
Item 10.  Certification
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

          After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

February 21, 2019
PARK WEST ASSET MANAGEMENT LLC
By:	/s/ Grace Jimenez
	Name: Grace Jimenez
	Title: Chief Financial Officer

/s/ Peter S. Park

Peter S. Park

Attention: Intentional misstatements or omissions of fact constitute

Federal criminal violations (See 18 U.S.C. 1001)

Exhibit Index

Exhibit

1.  Joint Filing Agreement, dated as of February 21, 2019, by and among Park West Asset Management LLC and Peter S. Park.