Document:

Form of Indemnification Agreement

 Exhibit 10.16 
 INDEMNIFICATION AGREEMENT 
 This INDEMNIFICATION AGREEMENT (this
“Agreement”) is made and entered into this              day of
                    , 2011 (the “Effective Date”) by and between InvenSense, Inc., a Delaware corporation (the
“Company”), and [                    ] (the “Indemnitee”). 

WHEREAS, the Company believes it is essential to retain and attract qualified directors and officers; 

WHEREAS, the Indemnitee is a director and/or officer of the Company; 

WHEREAS, both the Company and the Indemnitee recognize the increased risk of litigation and other claims being asserted against directors
and officers of public companies; 
 WHEREAS, the Company’s Certificate of Incorporation (the “Certificate of
Incorporation”) and] Bylaws (the “Bylaws”) require the Company to indemnify and advance expenses to] its directors and officers to the extent permitted by the DGCL (as hereinafter defined); 

WHEREAS, the Indemnitee has been serving and intends to continue serving as a director and/or officer of the Company in part in reliance
on the Certificate of Incorporation and Bylaws and 
 WHEREAS, in recognition of the Indemnitee’s need for
(i) substantial protection against personal liability based on the Indemnitee’s reliance on the Certificate of Incorporation and Bylaws and (ii) an inducement to continue to provide effective services to the Company as a director
and/or officer thereof, the Company wishes to provide for the indemnification of the Indemnitee and to advance expenses to the Indemnitee to the fullest extent permitted by law and as set forth in this Agreement, and, to the extent insurance is
maintained by the Company, to provide for the continued coverage of the Indemnitee under the Company’s directors’ and officers’ liability insurance policies; and 

[WHEREAS, the Indemnitee is relying upon the rights afforded under this Agreement in accepting Indemnitee’s position as a director,
officer or employee of the Company;][omit for existing directors] 
 NOW, THEREFORE, in consideration of the premises contained
herein and of the Indemnitee continuing to serve the Company directly or, at its request, with another enterprise, and intending to be legally bound hereby, the parties hereto agree as follows: 

1.          Certain Definitions. 

(a)      A “Change in Control” shall be deemed to have occurred if: 

(i)        any “person,” as such term is used in Sections 13(d) and 14(d) of the
Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder (the “Exchange Act”), other than (a) a trustee or other fiduciary holding securities under an employee benefit plan of the Company;
(b) a corporation owned, directly or indirectly, by the stockholders 

  
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of the Company in substantially the same proportions as their ownership of stock of the Company; or (c) any current beneficial stockholder or group, as defined by Rule 13d-5 of the Exchange
Act, including the heirs, assigns and successors thereof, of beneficial ownership, within the meaning of Rule 13d-3 of the Exchange Act, of securities possessing more than 50% of the total combined voting power of the Company’s outstanding
securities; hereafter becomes the “beneficial owner,” as defined in Rule 13d-3 of the Exchange Act, directly or indirectly, of securities of the Company representing 20% or more of the total combined voting power represented by the
Company’s then outstanding Voting Securities; 
 (ii)      during any period of two
consecutive years, individuals who at the beginning of such period constitute the Board and any new director whose election by the Board or nomination for election by the Company’s stockholders was approved by a vote of at least two-thirds of
the directors then in office who either were directors at the beginning of the period or whose election or nomination for election was previously so approved, cease for any reason to constitute a majority thereof; or 

(iii)      the stockholders of the Company approve a merger or consolidation of the Company with any other
corporation, other than a merger or consolidation which would result in the Voting Securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into Voting Securities
of the surviving entity) at least 80% of the total voting power represented by the Voting Securities of the Company or such surviving entity outstanding immediately after such merger or consolidation, or the stockholders of the Company approve a
plan of complete liquidation of the Company or an agreement for the sale or disposition by the Company, in one transaction or a series of transactions, of all or substantially all of the Company’s assets. 

(b)      “DGCL” shall mean the General Corporation Law of the State of Delaware, as the
same exists or may hereafter be amended or interpreted; provided, however, that in the case of any such amendment or interpretation, only to the extent that such amendment or interpretation permits the Company to provide broader indemnification
rights than were permitted prior thereto. 
 (c)      “Expense” shall mean
attorneys’ fees and all other costs, expenses and obligations paid or incurred in connection with investigating, defending, being a witness in or participating in (including on appeal), or preparing for any of the foregoing, any Proceeding
relating to any Indemnifiable Event. 
 (d)      “Indemnifiable Event” shall
mean any event or occurrence that takes place either prior to or after the execution of this Agreement, related to the fact that the Indemnitee is or was a director or officer of the Company, or is or was serving at the request of the Company as a
director, officer, employee, or agent of another corporation or of a partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, or by reason of anything done or not done by the Indemnitee in any
such capacity. 
 (e)      “Proceeding” shall mean any threatened, pending or
completed action, suit, investigation or proceeding, and any appeal thereof, whether civil, criminal, administrative or investigative and/or any inquiry or investigation, whether conducted by the Company or any

  
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other party, that the Indemnitee in good faith believes might lead to the institution of any such action. 
 (f)        “Reviewing Party” shall mean any appropriate person or body consisting of a member or members of the Company’s Board or any other
person or body appointed by the Board (including the special independent counsel referred to in Section 6) who is not a party to the particular Proceeding with respect to which the Indemnitee is seeking indemnification. 

(g)        “Voting Securities” shall mean any securities of the Company which
vote generally in the election of directors. 
 2.      Indemnification.  In the event the
Indemnitee was or is a party to or is involved (as a party, witness, or otherwise) in any Proceeding by reason of (or arising in part out of) an Indemnifiable Event, whether the basis of the Proceeding is the Indemnitee’s alleged action in an
official capacity as a director or officer or in any other capacity while serving as a director or officer, the Company shall indemnify the Indemnitee to the fullest extent permitted by the DGCL against any and all Expenses, liability, and loss
(including judgments, fines, ERISA excise taxes or penalties, and amounts paid or to be paid in settlement, and any interest, assessments, or other charges imposed thereon, and any federal, state, local, or foreign taxes imposed on any director or
officer as a result of the actual or deemed receipt of any payments under this Agreement) (collectively, “Liabilities”) reasonably incurred or suffered by such person in connection with such Proceeding. The Company shall provide
indemnification pursuant to this Section 2 as soon as practicable, but in no event later than 30 days after it receives written demand from the Indemnitee. Notwithstanding anything in this Agreement to the contrary and except as provided in
Section 5 below, the Indemnitee shall not be entitled to indemnification pursuant to this Agreement (i) in connection with any Proceeding initiated by the Indemnitee against the Company or any director or officer of the Company unless the
Company has joined in or consented to the initiation of such Proceeding or (ii) on account of any suit in which judgment is rendered against the Indemnitee pursuant to Section 16(b) of the Exchange Act for an accounting of profits made
from the purchase or sale by the Indemnitee of securities of the Company. 
 3.      Advancement of
Expenses.  The Company shall advance Expenses to the Indemnitee within 30 business days of such request (an “Expense Advance”); provided, however, that if required by applicable corporate laws such Expenses shall be
advanced only upon delivery to the Company of an undertaking by or on behalf of the Indemnitee to repay such amount if it is ultimately determined that the Indemnitee is not entitled to be indemnified by the Company; and provided further, that the
Company shall make such advances only to the extent permitted by law. Expenses incurred by the Indemnitee while not acting in his/her capacity as a director or officer, including service with respect to employee benefit plans, may be advanced upon
such terms and conditions as the Board, in its sole discretion, deems appropriate. 
 4.      Review Procedure
for Indemnification.  Notwithstanding the foregoing, (i) the obligations of the Company under Sections 2 and 3 above shall be subject to the condition that the Reviewing Party shall not have determined (in a written opinion,
in any case in which the special independent counsel referred to in Section 6 hereof is involved) that the Indemnitee would not be permitted to be indemnified under applicable law, and (ii) the obligation of the Company to make an Expense
Advance pursuant to Section 3 above shall be subject to the 

  
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condition that, if, when and to the extent that the Reviewing Party determines that the Indemnitee would not be permitted to be so indemnified under applicable law, the Company shall be entitled
to be reimbursed by the Indemnitee (who hereby agrees to reimburse the Company) for all such amounts theretofore paid; provided, however, that if the Indemnitee has commenced legal proceedings in a court of competent jurisdiction pursuant to
Section 5 below to secure a determination that the Indemnitee should be indemnified under applicable law, any determination made by the Reviewing Party that the Indemnitee would not be permitted to be indemnified under applicable law shall not
be binding and the Indemnitee shall not be required to reimburse the Company for any Expense Advance until a final judicial determination is made with respect thereto (as to which all rights of appeal therefrom have been exhausted or have lapsed).
The Indemnitee’s obligation to reimburse the Company for Expense Advances pursuant to this Section 4 shall be unsecured and no interest shall be charged thereon. The Reviewing Party shall be selected by the Board, unless there has been a
Change in Control, other than a Change in Control which has been approved by a majority of the Company’s Board who were directors immediately prior to such Change in Control, in which case the Reviewing Party shall be the special independent
counsel referred to in Section 6 hereof. 
 5.      Enforcement of Indemnification
Rights.  If the Reviewing Party determines that the Indemnitee substantively would not be permitted to be indemnified in whole or in part under applicable law, or if the Indemnitee has not otherwise been paid in full pursuant to
Sections 2 and 3 above within 30 days after a written demand has been received by the Company, the Indemnitee shall have the right to commence litigation in any court in the State of Delaware having subject matter jurisdiction thereof and
in which venue is proper to recover the unpaid amount of the demand (an “Enforcement Proceeding”) and, if successful in whole or in part, the Indemnitee shall be entitled to be paid any and all Expenses in connection with such
Enforcement Proceeding. The Company hereby consents to service of process for such Enforcement Proceeding and to appear in any such Enforcement Proceeding. Any determination by the Reviewing Party otherwise shall be conclusive and binding on the
Company and the Indemnitee. 
 6.      Change in Control.  The Company agrees that if there is a
Change in Control of the Company, other than a Change in Control which has been approved by a majority of the Company’s Board who were directors immediately prior to such Change in Control, then with respect to all matters thereafter arising
concerning the rights of the Indemnitee to indemnity payments and Expense Advances under this Agreement or any other agreement or under applicable law or the Company’s Certificate of Incorporation or Bylaws now or hereafter in effect relating
to indemnification for Indemnifiable Events, the Company shall seek legal advice only from special independent counsel selected by the Indemnitee and approved by the Company, which approval shall not be unreasonably withheld. Such special
independent counsel shall not have otherwise performed services for the Company or the Indemnitee, other than in connection with such matters, within the last five years. Such independent counsel shall not include any person who, under the
applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the Company or the Indemnitee in an action to determine the Indemnitee’s rights under this Agreement. Such counsel, among
other things, shall render its written opinion to the Company and the Indemnitee as to whether and to what extent the Indemnitee would be permitted to be indemnified under applicable law. The Company agrees to pay the reasonable fees of the special
independent counsel referred to above 

  
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and to indemnify fully such counsel against any and all expenses (including attorneys’ fees), claims, liabilities and damages arising out of or relating to this Agreement or the engagement
of special independent counsel pursuant to this Agreement. 
 7.      Partial Indemnity.  If the
Indemnitee is entitled under any provision of this Agreement to indemnification by the Company for some or a portion of the Expenses and Liabilities, but not, however, for all of the total amount thereof, the Company shall nevertheless indemnify the
Indemnitee for the portion thereof to which the Indemnitee is entitled. Moreover, notwithstanding any other provision of this Agreement, to the extent that the Indemnitee has been successful on the merits or otherwise in defense of any or all
Proceedings relating in whole or in part to an Indemnifiable Event or in defense of any issue or matter therein, including dismissal without prejudice, the Indemnitee shall be indemnified against all Expenses incurred in connection therewith. In
connection with any determination by the Reviewing Party or otherwise as to whether the Indemnitee is entitled to be indemnified hereunder, the burden of proof shall be on the Company to establish that the Indemnitee is not so entitled. 

8.      Non-exclusivity.  The rights of the Indemnitee hereunder shall be in addition to any other rights
the Indemnitee may have under any statute, provision of the Company’s Certificate of Incorporation or Bylaws, vote of stockholders or disinterested directors or otherwise, both as to action in an official capacity and as to action in another
capacity while holding such office. To the extent that a change in the DGCL permits greater indemnification by agreement than would be afforded currently under the Company’s Certificate of Incorporation and Bylaws and this Agreement, it is the
intent of the parties hereto that the Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change. 

9.      Liability Insurance.  To the extent the Company maintains an insurance policy or policies
providing directors’ and officers’ liability insurance, the Indemnitee shall be covered by such policy or policies, in accordance with its or their terms, to the maximum extent of the coverage available for any director or officer of the
Company. 
 10.     Settlement of Claims.  The Company shall not be liable to indemnify the Indemnitee
under this Agreement (a) for any amounts paid in settlement of any action or claim effected without the Company’s written consent, which consent shall not be unreasonably withheld; or (b) for any judicial award if the Company was not
given a reasonable and timely opportunity, at its expense, to participate in the defense of such action. 

11.     No Presumption.  For purposes of this Agreement, to the fullest extent permitted by law, the
termination of any Proceeding, action, suit or claim, by judgment, order, settlement (whether with or without court approval) or conviction, or upon a plea of nolo contendere, or its equivalent, shall not create a presumption that the Indemnitee did
not meet any particular standard of conduct or have any particular belief or that a court has determined that indemnification is not permitted by applicable law. 
 12.     Period of Limitations.  No legal action shall be brought and no cause of action shall be asserted by or on behalf of the Company or any affiliate of the
Company against the Indemnitee, the Indemnitee’s spouse, heirs, executors or personal or legal representatives after the expiration of two years from the date of accrual of such cause of action, or such longer period as may be

  
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required by state law under the circumstances, and any claim or cause of action of the Company or its affiliate shall be extinguished and deemed released unless asserted by the timely filing of a
legal action within such period; provided, however, that if any shorter period of limitations is otherwise applicable to any such cause of action, such shorter period shall govern. 
 13.      Amendment of this Agreement.  No supplement, modification or amendment of this Agreement shall be binding unless executed in writing by both of the
parties hereto. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provisions hereof (whether or not similar), nor shall such waiver constitute a continuing waiver. Except as specifically
provided herein, no failure to exercise or any delay in exercising any right or remedy hereunder shall constitute a waiver thereof. 

14.      Primacy of Indemnification.  Notwithstanding that the Indemnitee may have certain rights to
indemnification, advancement of expenses and/or insurance provided by other persons (collectively, the “Other Indemnitors”), the Company: (i) shall be the indemnitor of first resort (i.e., its obligations to the Indemnitee are primary
and any obligation of the Other Indemnitors to advance expenses or to provide indemnification for the same expenses or liabilities incurred by the Indemnitee are secondary); and (ii) shall required to advance the full amount of expenses
incurred by the Indemnitee and shall be liable for the full amount of all Expenses, without regard to any rights the Indemnitee may have against any of the Other Indemnitors. No advancement or payment by the Other Indemnitors on behalf of the
Indemnitee with respect to any claim for which the Indemnitee has sought indemnification from the corporation shall affect the immediately preceding sentence, and the Other Indemnitors shall have a right of contribution and/or be subrogated to the
extent of such advancement or payment to all of the rights of recovery of the Indemnitee against the Company. The Company and the Indemnitee agree that the Other Indemnitors are express third party beneficiaries of the terms of this Section 16.

 15.      Subrogation.  In the event of payment under this Agreement, the Company shall be
subrogated to the extent of such payment to all of the rights of recovery of the Indemnitee, who shall execute all papers required and shall do everything that may be necessary to secure such rights, including the execution of such documents
necessary to enable the Company effectively to bring suit to enforce such rights. 
 16.      No Duplication of
Payments.  The Company shall not be liable under this Agreement to make any payment in connection with any claim made against Indemnitee to the extent the Indemnitee has otherwise actually received payment (under any insurance policy,
Bylaw, vote, agreement or otherwise) of the amounts otherwise indemnifiable hereunder. 
 17.      Binding
Effect.  This Agreement shall be binding upon and inure to the benefit of and be enforceable by the parties hereto and their respective successors, assigns, including any direct or indirect successor by purchase, merger, consolidation
or otherwise to all or substantially all of the business and/or assets of the Company, spouses, heirs, and personal and legal representatives. The Company shall require and cause any successor (whether direct or indirect by purchase, merger,
consolidation or otherwise) to all, substantially all, or a substantial part, of the business and/or assets of the Company, by written agreement in form and substance satisfactory to the Indemnitee, expressly to assume and agree to perform this
Agreement in the same manner and to the same extent that the Company would be required to perform if no such succession had taken 

  
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place. This Agreement shall continue in effect regardless of whether the Indemnitee continues to serve as a director or officer of the Company or of any other enterprise at the Company’s
request. 
 18.      Severability.  The provisions of this Agreement shall be severable in the
event that any of the provisions hereof (including any provision within a single section, paragraph or sentence) is held by a court of competent jurisdiction to be invalid, void or otherwise unenforceable, and the remaining provisions shall remain
enforceable to the fullest extent permitted by law. Furthermore, to the fullest extent possible, the provisions of this Agreement (including, without limitation, each portion of this Agreement containing any provision held to be invalid, void or
otherwise unenforceable, that is not itself invalid, void or unenforceable) shall be construed so as to give effect to the intent manifested by the provision held invalid, illegal or unenforceable. 

19.      Governing Law.  This Agreement shall be governed by and construed and enforced in accordance with
the laws of the State of Delaware applicable to contracts made and to be performed in such State without giving effect to the principles of conflicts of laws. 
 20.      Counterparts.  This Agreement may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together
shall constitute one and the same instrument. 
 21.      Notices.  All notices, demands, and
other communications required or permitted hereunder shall be made in writing and shall be deemed to have been duly given if delivered by hand, against receipt, or mailed, postage prepaid, certified or registered mail, return receipt requested, and
addressed to the Company at: 
  

					
		 	InvenSense, Inc.	 	
		 	1197 Borregas Avenue	 	
		 	Sunnyvale, CA 94089	 	

					
		 	Attention: Chief Financial Officer

					
		
	 and to the Indemnitee at:
	 	

					
			
		 	
                    
                 
	 	
			
		 	
                    
                 
	 	
			
		 	
                    
                 
	 	
			
		 	  
	 	

 Notice of change of address shall be effective only
when done in accordance with this Section. All notices complying with this Section shall be deemed to have been received on the date of delivery or on the third business day after mailing. 

  
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 IN WITNESS WHEREOF, the parties hereto have duly executed and delivered this Agreement as of
the day first set forth above. 
  

			
	THE COMPANY:
	
	INVENSENSE, INC.
		
	By:  	 	 

			
		
	Name:	 	 
		
	Title:	 	 

			
	
	 INDEMNITEE:

	
	 
	Signature
		
	 Print Name:
	 	 

  
 82010 Amended and Restated Investors' Rights Agreement

 Exhibit 4.2 
 EXECUTION VERSION 
 ENPHASE ENERGY, INC. 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 
 March 15, 2010 

 ENPHASE ENERGY, INC. 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

This Amended and Restated Investors’ Rights Agreement (the “Agreement”) is made as of March 15, 2010, by and
among Enphase Energy, Inc., a Delaware corporation (the “Company”), and the investors listed on Exhibit A hereto, each of which is herein referred to as an “Investor” and all of whom herein collectively are
referred to as “Investors.” 
 RECITALS 

A. Certain of the Investors (the “Prior Investors”) are holders of outstanding shares of the Company’s
Series A Preferred Stock (the “Series A Preferred Stock”), Series B Preferred Stock (the “Series B Preferred Stock”), Series C Preferred Stock (the “Series C Preferred Stock”) and/or
Series D Preferred Stock (the “Series D Preferred Stock”) and have been granted certain information and registration rights and rights of first refusal under an Amended and Restated Investors’ Rights Agreement by and among the
Company and the Prior Investors dated April 24, 2009, as amended on June 23, 2009 (the “Prior Rights Agreement”). 
 B. Certain Investors (the “Series E Investors”) have agreed to purchase shares of the Company’s Series E Preferred Stock (the “Series E Preferred
Stock”) pursuant to a certain Series E Preferred Stock Purchase Agreement by and among the Company and such Series E Investors dated as of even date herewith, as amended from time to time (the “Series E
Agreement”). The Series E Agreement provides that, as a condition to the Series E Investors’ purchase of Series E Preferred Stock thereunder, the Company will enter into this Agreement, and the Series E Investors
will be granted the rights set forth herein. 
 C. The Company and the Investors (including the Prior Investors) desire to enter
into this Agreement in order to amend, restate and replace their rights and obligations under the Prior Rights Agreement with the rights and obligations set forth in this Agreement. Section 4.3 of the Prior Rights Agreement provides that the
Prior Rights Agreement may be amended by at least 60% of the outstanding shares of Preferred Stock held by the Investors, voting together as a single class, and the undersigned parties to this Agreement hold the requisite number of shares to amend
the Prior Rights Agreement. 
 AGREEMENT 
 The parties hereby agree as follows: 
 1. Registration Rights. The
Company and the Investors covenant and agree as follows: 
 1.1. Definitions. For purposes of this
Section 1: 
 (a) The term “Affiliated Fund” means, with respect to a Holder that is a
limited liability company or a limited liability partnership, a fund or entity managed by the same manager or managing member or general partner or management company or by an entity 

  
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controlling, controlled by, or under common control with such manager or managing member or general partner or management company; 

(b) The term “Board” means the Company’s Board of Directors. 

(c) The term “Exchange Act” means the Securities Exchange Act of 1934, as amended (and any successor
thereto) and the rules and regulations promulgated thereunder; 
 (d) The term “Form S-3” means
such form under the Securities Act as in effect on the date hereof or any successor form under the Securities Act; 
 (e) The term “Holder” means any person owning or having the right to acquire Registrable Securities or any assignee thereof in accordance with Section 1.12 of this Agreement;

 (f) The term “Horizon Warrant” means that certain warrant to purchase Preferred Stock of the
Company, dated March 11, 2010 issued by the Company to Compass Horizon Funding Company LLC (“Horizon”) pursuant to the Venture Loan and Security Agreement by and between the Company and Horizon, dated March 11, 2010.

 (g) The term “Major Investor” means any person who holds at least 1,000,000 shares of
Preferred Stock or the Common Stock issued upon conversion thereof (subject to adjustment for stock splits, stock dividends, combinations, reclassifications or the like). A Major Investor includes any general partners, managing members and
affiliates of a Major Investor, including Affiliated Funds; 
 (h) The term “Preferred Stock”
means the Preferred Stock, $0.00001 par value, of the Company. 
 (i) The term “Qualified IPO”
means a firm commitment underwritten public offering by the Company of shares of its Common Stock in connection with which all the then-outstanding shares of Preferred Stock are converted into shares of Common Stock pursuant to the Company’s
Amended and Restated Certificate of Incorporation as it may be amended from time to time; 
 (j) The terms
“register,” “registered,” and “registration” refer to a registration effected by preparing and filing a registration statement or similar document in compliance with the Securities Act, and the
declaration or ordering of effectiveness of such registration statement or document; 
 (k) The term
“Registrable Securities” means (i) the shares of Common Stock issuable or issued upon conversion of any shares of the Company’s Preferred Stock, including Preferred Stock issuable upon exercise of warrants then
outstanding; and (ii) any other shares of Common Stock of the Company issued (or issuable upon the conversion or exercise of any warrant, right or other security) to the holders of the shares listed in (i) above; excluding in all cases any
Registrable Securities sold by a person in a transaction in which such person’s rights under this Agreement are not assigned. Notwithstanding the foregoing, Common Stock or 

  
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other securities shall only be treated as Registrable Securities if and so long as: (A) they have not been sold to or through a broker or dealer or underwriter in a public distribution or a
public securities transaction, (B) they have not been sold in a transaction exempt from the registration and prospectus delivery requirements of the Securities Act under Section 4(1) thereof so that all transfer restrictions, and
restrictive legends with respect thereto, if any, are removed upon the consummation of such sale, or (C) the rights of the Holder thereof have not been terminated in accordance with Section 1.15 below. Notwithstanding the foregoing, the
shares of Common Stock issuable or issued upon conversion of any shares of the Company’s Preferred Stock issuable upon exercise of the Horizon Warrant shall not be deemed Registrable Securities for purposes of Section 1.2; 

(l) The number of shares of “Registrable Securities then outstanding” shall be determined by the number
of shares of Common Stock outstanding which are, and the number of shares of Common Stock issuable pursuant to then exercisable or convertible securities which are, Registrable Securities; 

(m) The “Restated Certificate” means the Company’s Amended and Restated Certificate of
Incorporation; 
 (n) The term “SEC” means the Securities and Exchange Commission; 

(o) The term “Securities Act” means the Securities Act of 1933, as amended (and any successor thereto),
and the rules and regulations promulgated thereunder; and 
 (p) The term “Significant Holder”
means any person who holds at least 300,000 shares of Common Stock issued or issuable upon conversion of Preferred Stock (subject to adjustment for stock splits, stock dividends, combinations, reclassifications or the like). A Significant Holder
includes any general partners, managing members and affiliates of a Significant Holder, including Affiliated Funds. 
 1.2. Request for Registration. 
 (a) If the Company
shall receive at any time after six (6) months after the effective date of the Company’s initial public offering covering the offer and sale of Common Stock of the Company (the “IPO”) a written request from the Holders of
at least a majority of the Registrable Securities then outstanding (the “Initiating Holders”) that the Company file a registration statement under the Securities Act covering the registration of at least thirty percent (30%) of
the Registrable Securities with an anticipated aggregate offering price of at least $5,000,000, then the Company shall promptly give written notice of such request to all Holders and shall, subject to the limitations of subsections 1.2(b)-(d), as
soon as practicable, use its reasonable best efforts to effect a registration statement under the Securities Act covering all Registrable Securities which the Holders request to be registered within 15 business days of the mailing of such notice by
the Company. 
 (b) If the Initiating Holders intend to distribute the Registrable Securities covered by their
request by means of an underwriting, they shall so advise the Company as a part of their request and the Company shall include such information in the written notice referred to in subsection 1.2(a). The underwriter will be selected by the
Initiating 

  
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Holders and shall be reasonably acceptable to the Company. In such event, the right of any Holder to include such Holder’s Registrable Securities in such registration shall be conditioned
upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting (unless otherwise mutually agreed by a majority in interest of the Initiating Holders and such Holder) to
the extent provided herein. The Company and all Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such
underwriting; provided, however, that such agreement shall not provide for indemnification or contribution obligations on the part of the Holders materially greater than the obligations of the Holders under Section 1.10(b) hereof.
Notwithstanding any other provision of this Section 1.2, if the underwriter advises the Company in good faith that marketing factors require a limitation of the number of shares to be underwritten, then the Company shall so advise all Holders
of Registrable Securities which would otherwise be underwritten pursuant hereto, and the maximum number of shares of Registrable Securities that may be included in the underwriting shall be allocated among all participating Holders thereof,
including the Initiating Holders, in proportion (as nearly as practicable) to the amount of Registrable Securities of the Company owned by each participating Holder. In no event shall any Registrable Securities be excluded from such underwriting
unless all other securities are first excluded from such offering. Any Registrable Securities excluded from or withdrawn from such underwriting shall be withdrawn from registration. 

(c) Notwithstanding the foregoing, if the Company shall furnish to Holders requesting a registration statement pursuant to
this Section 1.2, a certificate signed by the President of the Company stating that in the good faith judgment of the Board, it would be seriously detrimental to the Company and its stockholders for such registration statement to be filed, the
Company shall have the right to defer such filing for a period of not more than 90 days after receipt of the request of the Initiating Holders; provided, however, that the Company may not utilize this right more than once in any
twelve-month period; provided, further that the Company shall not register any securities for the account of itself or any other stockholder during such 90-day period (other than in a Qualified IPO, a registration relating solely to
the sale of securities of participants in a Company stock plan, a registration relating to a corporate reorganization or transaction under Rule 145 of the Securities Act). 

(d) In addition, the Company shall not be obligated to effect, or to take any action to effect, any registration pursuant
to this Section 1.2: 
 (i) After the Company has effected two registrations pursuant to this
Section 1.2 and such registrations have been declared or ordered effective; 
 (ii) During the period
starting with the date 90 days prior to the Company’s good faith estimate of the date of filing of, and ending on a date 90 days after the effective date of; a registration subject to Section 1.3 hereof; provided that the Company is
actively employing in good faith all commercially reasonable efforts to cause such registration statement to become effective; and provided, further that the Company may only delay an offering pursuant to this Section 1.2(d) for a
period of not more than 90 days if a filing of a registration statement in connection with such registration is not made during such period and the Company may only exercise this right once in any twelve-month period; or 

  
 4 

 (iii) In any jurisdiction in which the Company would be required to qualify
to do business or execute a general consent to service of process in effecting such registration, unless the Company is already qualified to do business or subject to service of process in such jurisdiction. 

1.3. Company Registration. 
 (a) If (but without any obligation to do so) the Company proposes to register (including for this purpose a registration effected by the Company for stockholders other than the Holders) any of its stock
under the Securities Act in connection with the public offering of such securities solely for cash (other than a registration relating solely to the sale of securities to participants in a Company stock plan or a transaction covered by Rule 145
under the Securities Act, or any registration on any form which does not include substantially the same information as would be required to be included in a registration statement covering the sale of the Registrable Securities), the Company shall,
at such time, promptly give each Holder written notice of such registration (which notice shall include a list of the jurisdictions in which the Company intends to attempt to qualify such securities under the applicable blue sky or other state
securities laws and shall specify if such registration is for a registered public offering involving an underwriting). Upon the written request of any Holder given within 20 days after mailing of such notice by the Company in accordance with
Section 4.4, the Company shall, subject to the provisions of Section 1.8, include in the related registration statement all of the Registrable Securities that each such Holder has requested to be registered. 

(b) The Company shall have the right to terminate or withdraw any registration initiated by it under this Section 1.3
prior to the effectiveness of such registration whether or not any Holder has elected to include securities in such registration. The expenses of such registration shall be borne by the Company, in accordance with Section 1.7 hereof.

 (c) If the registration of which the Company gives notice is for a registered public offering involving an
underwriting, the Company shall so advise the Holders as a part of the written notice given pursuant to Section 1.3(a) hereof. In such event, the right of any Holder to registration pursuant to this Section 1.3 shall be conditioned upon
such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such underwriting
shall (together with the Company and the other stockholders distributing their securities through such underwriting) enter into an underwriting agreement in customary form with the representative of the underwriter or underwriters selected by the
Company. 
 (d) Notwithstanding any other provision of this Section 1.3, if the representative of the
underwriters advises the Company in writing that marketing factors require a limitation on the number of shares to be underwritten, the Company may limit the number of Registrable Securities to be included in the registration and underwriting;
provided, however, that (i) in no event shall any Registrable Securities be excluded from such underwriting unless all other securities are first excluded, and (ii) the number of Registrable Securities to be included in the
registration and underwriting shall not be reduced to less than thirty percent (30%) of the total amount of securities included in such registration, unless such registration is the IPO, in

  
 5 

 
which case all of the Registrable Securities may be excluded from such registration if requested by the underwriters. The Company shall so advise all holders of securities requesting
registration, and the number of shares of securities that are entitled to be included in the registration and underwriting (other than on behalf of the Company) as set forth in Section 1.13 hereof. Notwithstanding anything to the contrary, if
the registration is the IPO and the underwriters exclude all Registrable Securities and other stockholders from such registration, the Company shall have no obligation to provide notice as set forth in this Section 1.3. If any person does not
agree to the terms of any such underwriting, he or she shall be excluded therefrom by written notice from the Company or the underwriter. Any Registrable Securities or other securities excluded or withdrawn from such underwriting shall be withdrawn
from such registration. 
 1.4. Form S-3 Registration. Following the Qualified IPO, the Company
shall use its reasonable best efforts to qualify for registration on Form S-3 for secondary sales. After the Company has qualified for the use of Form S-3, if the Company shall receive from the Holders of at least twenty-five percent (25%) of
the Registrable Securities (the “S-3 Initiating Holders”) a written request that the Company effect a registration on Form S-3 and any related qualification or compliance with respect to all or a part of the Registrable Securities
owned by such Holder or Holders, the Company will: 
 (a) promptly give written notice of the proposed
registration, and any related qualification or compliance, to all other Holders; and 
 (b) use its reasonable
best efforts to effect, as soon as practicable, such registration and all such qualifications and compliances as may be so requested and as would permit or facilitate the sale and distribution of all or such portion of such Holders’ Registrable
Securities as are specified in such request, together with all or such portion of the Registrable Securities of any other Holders joining in such request as are specified in a written request given within 15 days after receipt of such written notice
from the Company; provided, however, that the Company shall not be obligated to effect any such registration, qualification or compliance, pursuant to this Section 1.4: (i) if Form S-3 is not available for such offering by
the Holders under applicable law; (ii) if the Holders, together with the holders of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any)
pursuant to such registration at an aggregate price to the public of less than $1,000,000; (iii) if the Company shall furnish to the Holders requesting a registration statement pursuant to this Section 1.4, a certificate signed by the
President of the Company stating that in the good faith judgment of the Board, it would be seriously detrimental to the Company and its stockholders for such Form S-3 Registration to be effected at such time, in which event the Company shall have
the right to defer the filing of the Form S-3 registration statement for a period of not more than 90 days after receipt of the request of the S-3 Initiating Holders; provided, however, that the Company shall not utilize this right
more than once in any 12-month period; (iv) if the Company has, within the 24-month period preceding the date of such request, already effected one such registration on Form S-3 for the Holders pursuant to this Section 1.4; (v) in any
jurisdiction in which the Company would be required to qualify to do business or to execute a general consent to service of process in effecting such registration, qualification or compliance unless the Company is already qualified to do business or
subject to 

  
 6 

 
service of process in that jurisdiction; or (vi) during the period ending 180 days after the effective date of a registration statement subject to Section 1.3. 

(c) If the S-3 Initiating Holders intend to distribute the Registrable Securities covered by their request by means of an
underwriting, they shall so advise the Company as part of their request made pursuant to this Section 1.4 and the Company shall include such information in the written notice referred to in Section 1.4(a). In such event, the right of any
Holder to include its Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting (unless otherwise
mutually agreed by a majority in interest of the S-3 Initiating Holders and such Holder) to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement in
customary form with the underwriter or underwriters selected for such underwriting by the Company (which underwriter or underwriters shall be reasonably acceptable to a majority in interest of the S-3 Initiating Holders). Notwithstanding any other
provision of this Section 1.4, if the underwriter advises the Company that marketing factors require a limitation of the number of securities underwritten (including Registrable Securities), then the Company shall so advise all Holders of
Registrable Securities that would otherwise be underwritten pursuant hereto, and the number of shares that may be included in the underwriting shall be allocated to the Holders of such Registrable Securities on a pro rata basis based on the number
of Registrable Securities held by all such Holders (including the S-3 Initiating Holders). In no event shall any Registrable Securities be excluded from such underwriting unless all other securities are first excluded. Any Registrable Security
excluded or withdrawn from such underwriting shall be withdrawn from the registration. 
 (d) Subject to the
foregoing, the Company shall file a registration statement covering the Registrable Securities and other securities so requested to be registered as soon as practicable after receipt of the request of the S-3 Initiating Holders. Registrations
effected pursuant to this Section 1.4 shall not be counted as demands for registration or registrations effected pursuant to Sections 1.2 or 1.3, respectively. 

1.5. Obligations of the Company. Whenever required under this Section 1 to effect the registration of
any Registrable Securities, the Company shall, as expeditiously as reasonably possible: 
 (a) Prepare and file
with the SEC a registration statement with respect to such Registrable Securities and use its reasonable best efforts to cause such registration statement to become effective, and, upon the request of the Holders of a majority of the Registrable
Securities registered thereunder, keep such registration statement effective for up to 120 days, or until the distribution described in such registration statement is completed, if earlier; provided, however, that (1) such 120-day
period shall be extended for a period of time equal to the period during which the Holders or partners or members, as applicable, refrain from selling any securities included in such registration in accordance with the provisions of
Section 1.13 hereof; and (2) in the case of any registration of Registrable Securities on Form S-3 which are intended to be offered on a continuous or delayed basis, such 120-day period shall be extended until all such Registrable
Securities are sold, provided that Rule 415, or any successor rule under the Securities Act, permits an offering on a continuous or delayed basis. 

  
 7 

 (b) Prepare and file with the SEC such amendments and supplements to such
registration statement and the prospectus used in connection with such registration statement as may be necessary to comply with the provisions of the Securities Act with respect to the disposition of all securities covered by such registration
statement for up to 120 days, or until the distribution described in such registration statement is completed, if earlier. 
 (c) Furnish to the Holders such numbers of copies of a prospectus, including a preliminary prospectus, in conformity with the requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable Securities owned by them. 
 (d) Use its
reasonable best efforts to register and qualify the securities covered by such registration statement under such other securities or Blue Sky laws of such jurisdictions as shall be reasonably requested by the Holders, provided that the
Company shall not be required in connection therewith or as a condition thereto to qualify to do business or to file a general consent to service of process in any such states or jurisdictions unless the Company is already qualified to do business
or subject to service of process in that jurisdiction. 
 (e) In the event of any underwritten public offering,
enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing underwriter of such offering. Each Holder participating in such underwriting shall also enter into and perform its obligations
under such an agreement. 
 (f) Furnish, on the date that such Registrable Securities are delivered to the
underwriters for sale, if such securities are being sold through underwriters or, if such securities are not being sold through underwriters, on the date that the registration statement with respect to such securities becomes effective, (1) an
opinion, dated as of such date, of the counsel representing the Company for the purposes of such registration, in form and substance as is customarily given to underwriters in an underwritten public offering and reasonably satisfactory to a majority
in interest of the Holders participating in such registration, addressed to the underwriters, if any, and to the Holders participating in such registration and (2) a letter, dated as of such date, from the independent certified public
accountants of the Company, in form and substance as is customarily given by independent certified public accountants to underwriters in an underwritten public offering and reasonably satisfactory to a majority in interest of the Holders
participating in such registration, addressed to the underwriters, if any, and if permitted by applicable accounting standards, to the Holders participating in such registration. 

(g) Notify each Holder of Registrable Securities covered by such registration statement at any time when a prospectus
relating thereto is required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in such registration statement, as then in effect, includes an untrue statement of a material fact or
omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing. 

(h) Keep the Holders, as applicable, advised in writing as to the initiation of each such registration and as to the
completion thereof. 

  
 8 

 (i) Cause all such Registrable Securities registered pursuant to this
Section 1 to be listed on each national securities exchange or trading system on which similar securities issued by the Company are then listed. 
 (j) Provide a transfer agent and registrar for all Registrable Securities registered pursuant hereunder and a CUSIP number for all such Registrable Securities, in each case not later than the effective
date of such registration. 
 1.6. Information from Holders. It shall be a condition precedent to
the obligations of the Company to take any action pursuant to this Section 1 with respect to the Registrable Securities of any selling Holder that such Holder shall furnish to the Company such information regarding itself, the Registrable
Securities held by it, and the intended method of disposition of such securities as shall be required to effect the registration of such Holder’s Registrable Securities. The Company shall have no obligation with respect to any registration
requested pursuant to Section 1.2 or Section 1.4 of this Agreement if, as a result of the application of the preceding sentence, the anticipated aggregate offering price of the Registrable Securities to be included in the registration does
not equal or exceed the anticipated aggregate offering price required to originally trigger the Company’s obligation to initiate such registration as specified in subsection 1.2(a) or subsection 1.4(b)(2), whichever is applicable. 

1.7. Expenses of Registration. All expenses, other than underwriting discounts and commissions, incurred in
connection with registrations, filings or qualifications pursuant to Sections 1.2, 1.3 and 1.4 including (without limitation) all registration, filing and qualification fees, printers’ and accounting fees, and the fees and disbursements of
counsel for the Company and the reasonable fees and disbursements of one counsel for the selling Holders (which may be counsel for the Company) up to a maximum of $50,000, shall be borne by the Company. Each Holder participating in a registration
pursuant to this Section 1 shall bear such Holder’s proportionate share (based on the number of shares sold by such Holder over the total number of shares included in such registration at the time it is declared effective) of all
discounts, commissions or other amounts payable to underwriters or brokers in connection with such offering and the fees and disbursements of any counsel for the participating Holders in excess of $50,000. The Company shall not be required to pay
for any expenses of any registration proceeding begun pursuant to Section 1.2 if the registration request is subsequently withdrawn at the request of the Holders of a majority of the Registrable Securities to be registered (in which case all
participating Holders shall bear such expenses), unless the Holders of a majority of the Registrable Securities agree to forfeit their right to one demand registration pursuant to Section 1.2; provided further, however, that, if
at the time of such withdrawal, the Holders (i) have learned of a material adverse change in the condition, business, or prospects of the Company that was not known to the Holders at the time of their request and (ii) have withdrawn the
request with reasonable promptness following disclosure by the Company of such material adverse change, then the Holders shall not be required to pay any of such expenses and shall not forfeit their rights pursuant to Section 1.2. 

1.8. Underwriting Requirements. In connection with any offering involving an underwriting of shares of the
Company’s capital stock, the Company shall not be required under Section 1.3 to include any of the Holders’ securities in such underwriting unless they accept the terms of the underwriting as agreed upon between the Company and the
underwriters 

  
 9 

 
selected by the Company (or by other persons entitled to select the underwriters) (provided, however, that such agreement shall not provide for indemnification or contribution obligations on the
part of the Holders materially greater than the obligations of the Holders under Section 1.10(b) hereof) and then only in such quantity as the underwriters determine in their sole discretion will not jeopardize the success of the offering by
the Company. If the total amount of securities, including Registrable Securities, requested by stockholders to be included in such offering exceeds the amount of securities sold other than by the Company that the underwriters determine in their sole
discretion is compatible with the success of the offering, then the Company shall be required to include in the offering only that number of such securities, including Registrable Securities, which the underwriters determine in their sole discretion
will not jeopardize the success of the offering (the securities so included to be apportioned pro rata among the selling stockholders according to the total amount of securities entitled to be included therein owned by each selling stockholder or in
such other proportions as shall mutually be agreed to by such selling stockholders) but in no event shall the amount of securities of the selling Holders included in the offering be reduced below 30% of the total amount of securities included in
such offering, unless such offering is the IPO, in which case, the selling stockholders may be excluded partially or entirely if the underwriters make the determination described above and no other stockholder’s securities are included. For
purposes of the preceding parenthetical concerning apportionment, for any selling stockholder which is a holder of Registrable Securities and which is a venture capital fund, or a partnership or corporation, the Affiliated Funds, partners, retired
partners and stockholders of such Holder, or the estates and family members of any such partners and retired partners and any trusts for the benefit of any of the foregoing persons shall be deemed to be a single “selling
stockholder” and any pro-rata reduction with respect to such “selling stockholder” shall be based upon the aggregate amount of shares carrying registration rights owned by all entities and individuals included in such
“selling stockholder,” as defined in this sentence. 
 1.9. Delay of Registration. No
Holder shall have any right to obtain or seek an injunction restraining or otherwise delaying any such registration as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 1.

 1.10. Indemnification. In the event any Registrable Securities are included in a registration
statement under this Section 1: 
 (a) To the extent permitted by law, the Company will indemnify and hold
harmless each Holder, such Holder’s officers, directors, partners and members (each, a “Holder Party”), any underwriter (as defined in the Securities Act) for such Holder and each person, if any, who controls such Holder or
underwriter within the meaning of the Securities Act or the Exchange Act, against any losses, claims, damages, or liabilities (joint or several) to which they may become subject under the Securities Act, the Exchange Act or other federal or state
law, insofar as such losses, claims, damages, or liabilities (or actions in respect thereof) arise out of or are based upon any of the following statements, omissions or violations (collectively a “Violation”): (i) any untrue
statement or alleged untrue statement of a material fact contained in such registration statement, including any preliminary prospectus or final prospectus contained therein or any amendments or supplements thereto, (ii) the omission or alleged
omission to state therein a material fact required to be stated therein, or necessary to make the statements therein 

  
 10 

 
not misleading, or (iii) any violation or alleged violation by the Company of the Securities Act, the Exchange Act, any state securities law or any rule or regulation promulgated under the
Securities Act, the Exchange Act or any state securities law; and the Company will pay to each such Holder, Holder Party, underwriter or controlling person, as incurred, any legal or other expenses reasonably incurred by them in connection with
investigating or defending any such loss, claim, damage, liability, or action; provided, however, that the indemnity agreement contained in this subsection 1.10(a) shall not apply to amounts paid in settlement of any such loss, claim,
damage, liability, or action if such settlement is effected without the consent of the Company (which consent shall not be unreasonably withheld), nor shall the Company be liable to any Holder, Holder Party, underwriter or controlling person for any
such loss, claim, damage, liability, or action to the extent that it arises out of or is based upon a Violation which arises out of or is based upon and in conformity with written information furnished expressly for use in connection with such
registration by any such Holder, Holder Party, underwriter or controlling person. 
 (b) To the extent permitted
by law, each selling Holder will indemnify and hold harmless the Company, each of its directors, each of its officers who has signed the registration statement, each person, if any, who controls the Company within the meaning of the Securities Act,
any underwriter of the Company’s securities covered by such a registration statement, any other Holder selling securities in such registration statement and any controlling person of any such underwriter or other Holder, against any losses,
claims, damages, or liabilities (joint or several) to which any of the foregoing persons may become subject, under the Securities Act, the Exchange Act or other federal or state law, insofar as such losses, claims, damages, or liabilities (or
actions in respect thereto) arise out of or are based upon any Violation, in each case to the extent (and only to the extent) that such Violation occurs in reliance upon and in conformity with written information furnished by such Holder expressly
for use in connection with such registration; and each such Holder will pay, as incurred, any legal or other expenses reasonably incurred by any person intended to be indemnified pursuant to this subsection 1.10(b), in connection with investigating
or defending any such loss, claim, damage, liability, or action; provided, however, that the indemnity agreement contained in this subsection 1.10(b) shall not apply to amounts paid in settlement of any such loss, claim, damage,
liability or action if such settlement is effected without the consent of the Holder, which consent shall not be unreasonably withheld provided that in no event shall any indemnity under this subsection 1.10(b) exceed the net proceeds from
the offering received by such Holder, except in the case of willful fraud by such Holder. 
 (c) Promptly after
receipt by an indemnified party under this Section 1.10 of notice of the commencement of any action (including any governmental action), such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party
under this Section 1.10, deliver to the indemnifying party a written notice of the commencement thereof and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any
other indemnifying party similarly noticed, to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party (together with all other indemnified parties which may be
represented without conflict by one counsel) shall have the right to retain one separate counsel, with the reasonable fees and expenses to be paid by the indemnifying party, if representation of such indemnified party by the counsel retained by the
indemnifying party would be inappropriate due 

  
 11 

 
to actual or potential differing interests between such indemnified party and any other party represented by such counsel in such proceeding. The failure to deliver written notice to the
indemnifying party within a reasonable time of the commencement of any such action, if prejudicial to its ability to defend such action, shall relieve such indemnifying party of any liability to the indemnified party under this Section 1.10,
but the omission so to deliver written notice to the indemnifying party will not relieve it of any liability that it may have to any indemnified party otherwise than under this Section 1.10. 

(d) If the indemnification provided for in this Section 1.10 is held by a court of competent jurisdiction to be
unavailable to an indemnified party with respect to any loss, liability, claim, damage or expense referred to therein, then the indemnifying party, in lieu of indemnifying such indemnified party hereunder, shall contribute to the amount paid or
payable by such indemnified party as a result of such loss, liability, claim, damage, or expense in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the other
in connection with the statements or omissions that resulted in such loss, liability, claim, damage or expense as well as any other relevant equitable considerations; provided that in no event shall any contribution by a Holder under this
subsection 1.10(d) exceed the net proceeds from the offering received by such Holder, except in the case of willful fraud by such Holder. The relative fault of the indemnifying party and of the indemnified party shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the indemnifying party or by the indemnified party and the
parties’ relative intent, knowledge, access to information, and opportunity to correct or prevent such statement or omission. 
 (e) Notwithstanding the foregoing, to the extent that the provisions on indemnification and contribution contained in the underwriting agreement entered into in connection with the underwritten public
offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control. 
 (f) The obligations of the Company and Holders under this Section 1.10 shall survive the completion of any offering of Registrable Securities in a registration statement under this Section 1,
and otherwise. 
 1.11. Reports under the Exchange Act. With a view to making available to the
Holders the benefits of Rule 144 promulgated under the Securities Act and any other rule or regulation of the SEC that may at any time permit a Holder to sell securities of the Company to the public without registration or pursuant to a registration
on Form S-3, the Company agrees to use its reasonable best efforts to: 
 (a) make and keep public information
available, as those terms are understood and defined in SEC Rule 144, at all times after 90 days after the effective date of the Qualified IPO so long as the Company remains subject to the periodic reporting requirements under Sections 13 or 15(d)
of the Exchange Act; 
 (b) take such action, including the voluntary registration of its Common Stock under
Section 12 of the Exchange Act, as is necessary to enable the Holders to 

  
 12 

 
utilize Form S-3 for the sale of their Registrable Securities, such action to be taken as soon as practicable after the end of the fiscal year in which the first registration statement filed by
the Company for the offering of its securities to the general public is declared effective; 
 (c) file with the
SEC in a timely manner all reports and other documents required of the Company under the Securities Act and the Exchange Act at any time after it has become subject to such reporting requirements; and 

(d) furnish to any Holder upon request, so long as the Holder owns any Registrable Securities, (i) a written
statement by the Company that it has complied with the reporting requirements of SEC Rule 144 (at any time after 90 days after the effective date of the Qualified IPO), the Securities Act and the Exchange Act (at any time after it has become subject
to such reporting requirements), or that it qualifies as a registrant whose securities may be resold pursuant to Form S-3 (at any time after it so qualifies), (ii) a copy of the most recent annual or quarterly report of the Company and such
other reports and documents so filed by the Company, and (iii) such other information as may be reasonably requested in availing any Holder of any rule or regulation of the SEC which permits the selling of any such securities without
registration or pursuant to such form. 
 1.12. Assignment of Registration Rights. The rights to
cause the Company to register Registrable Securities pursuant to this Section 1 may be assigned (but only with all related obligations) by a Holder to a transferee or assignee (i) of at least 75,000 shares of such securities (subject to
adjustment for stock splits, stock dividends, reclassification or the like) (or if the transferring Holder owns less than 75,000 shares of such securities, then all Registrable Securities held by the transferring Holder), (ii) that is a
subsidiary, parent, partner, limited partner, retired partner, member, retired member or stockholder of a Holder, (iii) that is an Affiliated Fund, (iv) who is a Holder’s child, stepchild, grandchild, parent, stepparent, grandparent,
spouse, sibling, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother- in-law, or sister-in-law (such a relation, a Holder’s “Immediate Family Member,” which term shall include adoptive relationships), or
(v) that is a trust for the benefit of an individual Holder or such Holder’s Immediate Family Member, provided the Company is, within a reasonable time after such transfer, furnished with written notice of the name and address of
such transferee or assignee and the securities with respect to which such registration rights are being assigned; and provided, further that such assignment shall be effective only if the transferee agrees to be bound by this Agreement
and immediately following such transfer the further disposition of such securities by the transferee or assignee is restricted under the Securities Act. For the purposes of determining the number of shares of Registrable Securities held by a
transferee or assignee, the holdings of transferees and assignees of (x) a partnership who are partners or retired partners of such partnership or (y) a limited liability company who are members or retired members of such limited liability
company (including Immediate Family Members of such partners or members who acquire Registrable Securities by gift, will or intestate succession) shall be aggregated together and with the partnership or limited liability company; provided
that all assignees and transferees who would not qualify individually for assignment of registration rights shall have a single attorney-in-fact for the purpose of exercising any rights, receiving notices or taking any action under Section 1.

 1.13. Lock-Up Agreement 

  
 13 

 (a) Lock-Up Period; Agreement. Each Holder hereby agrees that
it shall not, to the extent requested by the Company or an underwriter of securities of the Company, sell or otherwise transfer or dispose of any Registrable Securities or other shares of stock of the Company then owned by such Holder (other than to
donees or partners of the Holder who agree to be similarly bound) for up to one hundred eighty (180) days following the effective date of any registration statement of the Company filed under the Securities Act; provided however
that, if during the last 17 days of the restricted period the Company issues an earnings release or material news or a material event relating to the Company occurs, or prior to the expiration of the restricted period the Company announces that it
will release earnings results during the 16-day period beginning on the last day of the restricted period, and if the Company’s securities are listed on the Nasdaq Stock Market and Rule 2711 thereof applies, then the restrictions imposed
by this Section 1.13 shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event. In no event will the restricted period extend
beyond two hundred and fifteen (215) days after the effective date of the registration statement. 
 (b)
Limitations. The obligations described in subsection 1.13(a): 
 (i) apply only to the
Company’s initial public offering; 
 (ii) will not apply unless all executive officers and directors of
the Company then holding Common Stock of the Company and all stockholders holding in the aggregate at least 1% of the total equity of the Company, enter into substantially identical agreements; and 

(iii) will not apply to any shares purchased pursuant to such registration statement by a Holder. 

(c) No Selective Relief. Any relief granted by the Company or such underwriters from the obligations
described in subsection 1.13(a) must be granted ratably to all Holders subject to such obligations. 
 (d)
Stop-Transfer Instructions. In order to enforce the foregoing covenants, the Company may impose stop-transfer instructions with respect to the securities of each Holder (and the securities of every other person subject to the
restrictions in subsection 1.13(a)). 
 (e) Transferees Bound. Each Holder agrees that it will not
transfer securities of the Company unless each transferee agrees in writing to be bound by all of the provisions of this Section 1.13. Furthermore, for purposes of this Section 1.13, the term “Company” shall include any
wholly-owned subsidiary of the Company into which the Company merges or consolidates. 
 (f) Further
Assurances. Each Holder further agrees to enter into any agreement reasonably required by the underwriters to implement this Section 1.13 within any reasonable timeframe so requested. 

  
 14 

 1.14. Grant of Future Registration Rights. Future registration
rights that are superior to or on parity with the rights of the Investors hereunder require the consent of the Company and the holders of a majority of the Registrable Securities. 

1.15. Termination of Registration Rights. No Holder shall be entitled to exercise any right provided for in
this Section 1 after the earlier of (i) five years following the consummation of a Qualified IPO, or (ii) with respect to any Holder, at such time after the Qualified IPO as Rule 144 or another similar exemption under the Securities
Act is available for the sale of all of such Holder’s shares during a three-month period without registration. 
 2.
Covenants of the Company 
 2.1. Delivery of Financial Information. The Company shall
deliver to each Major Investor (other than a Major Investor reasonably deemed by the Company to be a competitor of the Company): 
 (a) as soon as practicable, but in any event within 120 days after the end of each fiscal year of the Company (or such longer period as may be approved by the Board), an audited income statement for such
fiscal year, an audited balance sheet of the Company and statement of stockholder’s equity as of the end of such year, and an audited statement of cash flows for such year, such year-end financial reports to be in reasonable detail, prepared in
accordance with generally accepted accounting principles (“GAAP”) on an accrual basis where applicable; 
 (b) as soon as practicable, but in any event within 45 days after the end of each of the first three quarters of each fiscal year of the Company, an unaudited profit or loss statement, an unaudited
statement of cash flows for such fiscal quarter and an unaudited balance sheet as of the end of such fiscal quarter; 
 (c) as soon as practicable, but in any event at least 30 days prior to the end of each fiscal year, a budget and business plan for the next fiscal year; 

(d) within forty-five (45) days of receipt by the Company, copies of all audit reports; 

(e) copies of all other reports sent to stockholders; 

(f) upon request, a copy of the then-current capitalization table of the Company; and 

(g) such other information as such Major Investor may reasonably request. 

2.2. Inspection. The Company shall permit each Significant Holder (except for a Significant Holder
reasonably deemed by the Company to be a competitor of the Company), at such Significant Holder’s expense, to visit and inspect the Company’s properties, to examine its books of account and records and to discuss the Company’s
affairs, finances and accounts with its officers, all at such reasonable times as requested by the Significant Holder and 

  
 15 

 
reasonably agreed by the Company during normal business hours upon one business day’s advance written notice; provided, however, that the Company shall not be obligated
pursuant to this Section 2.2 to provide access to any information which it reasonably considers to be a trade secret or similar confidential information. 
 2.3. Right of First Offer. Subject to the terms and conditions specified in this Section 2.3, the Company hereby grants to each Significant Holder (other than a Significant Holder
reasonably deemed by the Company to be a competitor of the Company) a right of first offer with respect to any sales by the Company of its Shares (as hereinafter defined) after the date hereof. For purposes of this Section 2.3, Significant
Holder includes any general partners, managing members and affiliates of a Major Investor, including Affiliated Funds. A Significant Holder who chooses to exercise the right of first offer shall be entitled to apportion the right of first offer
hereby granted it among itself and its partners and affiliates, including Affiliated Funds, in such proportions as it deems appropriate. Each time the Company proposes to offer any shares of, or securities convertible into or exercisable for any
shares of, any class of its capital stock (“Shares”), the Company shall first make an offering of such Shares to each Significant Holder in accordance with the following provisions: 

(a) The Company shall deliver a notice (the “RFO Notice”) to the Significant Holders stating (i) its
bona fide intention to offer such Shares, (ii) the number of such Shares to be offered, and (iii) the price and terms upon which it proposes to offer such Shares. 

(b) Within 15 business days after delivery of the RFO Notice, the Significant Holder may elect to purchase or obtain, at
the price and on the terms specified in the RFO Notice, up to that portion of such Shares which equals the proportion that the number of shares of Common Stock issued and held, or issuable upon conversion and exercise of all convertible or
exercisable securities then held, by such Significant Holder bears to the sum of (A) the total number of shares of Common Stock then outstanding (assuming full conversion and exercise of all convertible or exercisable securities) and
(B) shares of Common Stock issuable to employees, consultants or directors pursuant to a stock option plan, restricted stock plan, or other stock plan approved by the Board. Such purchase shall be completed at the same closing as that of any
third party purchasers or at an additional closing thereunder. The Company shall promptly, in writing, inform each Significant Holder that purchases all the shares available to it (each, a “Fully-Exercising Investor”) of any other
Significant Holder’s failure to do likewise. During the 10-day period commencing after receipt of such information, each Fully-Exercising Investor shall be entitled to obtain that portion of the Shares for which Significant Holders were
entitled to subscribe but which were not subscribed for by the Significant Holders that is equal to the proportion that the number of shares of Common Stock issued and held, or issuable upon conversion and exercise of all convertible or exercisable
securities then held, by such Fully-Exercising Investor bears to the total number of shares of Common Stock then issued and held, or issuable upon conversion and exercise of all convertible or exercisable securities then held, by all
Fully-Exercising Investors. 
 (c) The Company may, during the 45-day period following the expiration of the
10-day period provided in subsection 2.3(b) hereof; offer the remaining unsubscribed portion of the Shares to any person or persons at a price not less than, and upon terms no more favorable to the offeree than those specified in the RFO Notice. If
the Company 

  
 16 

 
does not enter into an agreement for the sale of the Shares within such period, or if such agreement is not consummated within 60 days of the execution thereof, the right provided hereunder shall
be deemed to be revived and such Shares shall not be offered unless first reoffered to the Significant Holders in accordance herewith. 
 (d) The right of first offer in this Section 2.3 shall not be applicable to: 
 (i) shares of Common Stock issued or issuable upon conversion of the outstanding shares of the Preferred Stock; 
 (ii) shares of capital stock issued pursuant to the Series E Agreement; 
 (iii) shares of Common Stock or Preferred Stock (or options, warrants or rights therefor) granted or issued hereafter to employees, officers, directors, contractors, consultants or advisers to, the
Company or any Subsidiary pursuant to incentive agreements, stock purchase or stock option plans, stock bonuses or awards, warrants, contracts or other arrangements that are approved by the Board; 

(iv) shares of Common Stock or Preferred Stock (or options, warrants or rights therefor) issued to parties that are:
(a) strategic partners investing in connection with a commercial relationship with the Company, or (b) providing the Company with equipment leases, real property leases, loans, credit lines, guaranties of indebtedness, cash price
reductions or similar transactions, under arrangements, in each case, where such issuances are not intended as a source of equity financing for the Company and approved by the Board; 

(v) shares of capital stock issued pursuant to the acquisition of another Company or entity by the Company by
consolidation, merger, purchase of all or substantially all of the assets, or other reorganization in which the Company acquires, in a single transaction or series of related transactions, all or substantially all of the assets of such other Company
or entity or fifty percent (50%) or more of the voting power of such other Company or entity or fifty percent (50%) or more of the equity ownership of such other entity, provided that such transaction or series of transactions has been
approved by the Board; or pursuant to the purchase of less than a fifty percent (50%) equity ownership in connection with a joint venture or other strategic arrangement or other commercial relationship, provided such an arrangement is approved
by the Board; 
 (vi) shares of Common Stock or Preferred Stock issuable upon exercise of any options, warrants
or rights to purchase any securities of the Company outstanding as of the date of the filing of the Amended and Restated Certificate of the Company and any securities issuable upon the conversion thereof; 

(vii) shares of Common Stock issued pursuant to (A) a dividend or other distribution on outstanding Common Stock,
(B) a subdivision of the outstanding shares of Common Stock into a greater number of shares of Common Stock, or (C) a combination of the outstanding shares of Common Stock into a smaller number of shares of Common Stock; 

  
 17 

 (viii) shares of Common Stock issued or issuable in a public offering prior
to or in connection with which all outstanding shares of Preferred Stock will be converted to Common Stock; and 

(ix) shares of Common Stock or Preferred Stock (or options, or warrants or rights to acquire same), issued or issuable
hereafter that are (A) approved by the Board, and (B) approved by the vote of the holders of at least 60% of the then outstanding shares of Preferred Stock held by the Investors, voting together as a single class, as being excluded from
the right of first refusal under this Section 2.3. 
 (e) In addition to the foregoing, the right of first
offer in this Section 2.3 shall not be applicable with respect to any Significant Holder and any subsequent securities issuance, if (i) at the time of such subsequent securities issuance, the Significant Holder is not an “accredited
investor,” as that term is then defined in Rule 501(a) under the Securities Act, and (ii) such subsequent securities issuance is otherwise being offered only to accredited investors. 

2.4. Termination of Covenants. 

(a) The covenants set forth in Sections 2.1 through Section 2.3 shall terminate as to each Holder and be of no
further force or effect immediately prior to the consummation of a Qualified IPO. 
 (b) The covenants set forth
in Sections 2.1 and 2.2 shall terminate as to each Holder and be of no further force or effect when the Company first becomes subject to (or upon a Change of Control (as defined in the Restated Certificate) where the successor company is subject to)
the periodic reporting requirements of Sections 13 or 15(d) of the Exchange Act, if this occurs earlier than the event described in subsection 2.4(a) above. 
 3. Other Covenants. 
 3.1. Employee
Vesting. Except as otherwise approved by the Board, including the affirmative vote of at least one director designated by the holders of Preferred Stock, options granted to employees of the Company (or shares of restricted stock issued to
such employees) shall be subject to vesting over a four-year period, with the first 25% vesting twelve (12) months following the date of hire, and the remainder vesting ratably each month thereafter. 

3.2. Employee Loans. The Company shall not make any loans to its employees unless such loan is approved by
the Board, including the affirmative vote of at least one director designated by the holders of Preferred Stock. 

3.3. Interested Transactions. The Company shall not enter into or amend in any material respect any
agreement, arrangement or transaction between the Company and any of the Company’s executive officers, directors or affiliates unless approved by the disinterested members of the Board, including the affirmative vote of at least one of the
disinterested directors designated by the holders of Preferred Stock. 

  
 18 

 3.4. Conduct of Business. Except as agreed in writing by the
holders of at least 60% of the outstanding shares of Preferred Stock held by the Investors, voting together as a single class, the Company will: 
 (a) continue to engage in business of the same general type as now conducted or as presently contemplated by it and preserve, renew and keep in full force and effect its corporate existence and take all
reasonable action to maintain all rights, privileges and franchises necessary or desirable in the normal conduct of its business; 
 (b) require all of its employees or consultants to enter into appropriate confidentiality agreements to protect confidential information relating to the Company and its business, including trade secrets;

 (c) comply in all material respects with all applicable laws, rules, regulations and orders except where the
failure to comply would not have a material adverse effect on the business, properties, results of operations or condition of the Company; 
 (d) maintain insurance with responsible and reputable insurance companies or associations in such amounts and covering such risks as is usually carried by companies of similar size and credit standing
engaged in similar business and owning similar properties, provided that such insurance is and remains available to the Company at commercially reasonable rates, as determined by the Board; and 

(e) keep proper books of record and account, in which full and correct entries shall be made of all financial transactions
and the assets and business of the Company to facilitate the preparation of financial statements by the Company in accordance with GAAP. 
 3.5. Termination of Covenants. The covenants set forth in this Section 3 shall terminate as to each Holder and be of no further force or effect immediately prior to the consummation of
a Qualified IPO. 
 4. Miscellaneous. 

4.1. Amendment and Restatement of Prior Rights Agreement; Entire Agreement. Pursuant to Section 4.3 of
the Prior Rights Agreement, the undersigned parties who are parties to such Prior Rights Agreement hereby amend and restate the Prior Rights Agreement to read in its entirety as set forth in this Agreement, all with the intent and effect that the
Prior Rights Agreement shall hereby be terminated and entirely replaced and superseded by this Agreement. This Agreement constitutes the entire agreement between the parties hereto pertaining to the subject matter hereof; and any and all other
written or oral agreements relating to the subject matter hereof existing between the parties hereto, including the Prior Rights Agreement, are expressly canceled and superseded. 

4.2. Successors and Assigns. Except as otherwise provided in this Agreement, the terms and conditions of
this Agreement shall inure to the benefit of and be binding upon the respective permitted successors and assigns of the parties (including transferees of any of the Preferred Stock or any Common Stock issued upon conversion thereof). Nothing in

  
 19 

 
this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations, or liabilities
under or by reason of this Agreement, except as expressly provided in this Agreement. 
 4.3. Amendments
and Waivers. Any term of this Agreement may be amended or waived only with the written consent of the Company and the holders of at least 60% of the outstanding shares of Preferred Stock held by the Investors, voting together as a
single class. Notwithstanding the foregoing, this Agreement may be amended with only the written consent of the Company for the sole purpose of including additional purchasers of Preferred Stock as “Investors” and “Holders”
pursuant to the Series E Agreement. Any amendment or waiver effected in accordance with this paragraph shall be binding upon each party to the Agreement, whether or not such party has signed such amendment or waiver, each future holder of all such
Registrable Securities, and the Company. 
 4.4. Notices. Any notice required or permitted to be
given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed given to such party under this Agreement on the earliest of the following: 

(a) the date of personal delivery; 

(b) one (1) business day after transmission by facsimile or electronic mail, addressed to the other party at its
facsimile number or electronic mail address specified herein (or hereafter noticed to the parties hereto), with confirmation of transmission; 
 (c) one (1) business day after deposit with a return receipt express courier for United States deliveries, or three (3) business days after such deposit for deliveries outside of the United
States; or 
 (d) three (3) business days after deposit in the United States mail by registered or certified
mail (return receipt requested) for United States deliveries. 
 All notices not delivered personally or by facsimile or electronic mail will be
sent with postage and/or other charges prepaid and properly addressed to the party to be notified at the address set forth below such party’s signature on this Agreement or on an Exhibit hereto, or at such other address as such other party may
designate by ten (10) days advance written notice to the other parties hereto. All notices for delivery outside the United States will be sent by facsimile or electronic mail or by express courier. Any notice given hereunder to more than one
person will be deemed to have been given, for purposes of counting time periods hereunder, on the date effectively given to the last party required to be given such notice. Notices to the Company will be marked “Attention: President.”

 4.5. Severability. If one or more provisions of this Agreement are held to be unenforceable
under applicable law, such provision shall be excluded from this Agreement, and the balance of the Agreement shall be interpreted as if such provision were so excluded and shall be enforceable in accordance with its terms. 

  
 20 

 4.6. Governing Law. This Agreement and all acts and
transactions pursuant hereto shall be governed, construed and interpreted in accordance with the laws of the State of Delaware, without giving effect to principles of conflicts of laws. 

4.7. Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed
an original, but all of which together shall constitute one and the same instrument. 
 4.8. Titles and
Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be considered in construing or interpreting this Agreement. 

4.9. Aggregation of Stock. All shares of the Series A Preferred Stock, the Series B Preferred Stock, the
Series C Preferred Stock, the Series D Preferred Stock or the Series E Preferred Stock, as applicable, held or acquired by affiliated entities or persons shall be aggregated together for the purpose of determining the availability of any rights
under this Agreement. 
 [Signature page follows] 

  
 21 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE COMPANY: 
  

			
	ENPHASE ENERGY, INC.
		
	Name:	 	/s/ Paul Nahi
	By: Paul Nahi
	Title: President and CEO
		
	Address:	 	201 1st Street Suite 300
Petaluma, CA 94952

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
  

			
	By:	 	 /s/ Paul Nahi

		 	Paul Nahi
		
	By:	 	 /s/ Raghuveer Belur

		 	Raghuveer Belur
		
	By:	 	 /s/ Martin Fornage

		 	Martin Fornage
		
	By:	 	 /s/ Andrew Nichols

		 	Andrew Nichols
		
	By:	 	 /s/ John Nichols

		 	John Nichols
		
	By:	 	 /s/ William Orenstein

		 	William Orenstein
		
	By:	 	 /s/ Paul Elliot

		 	Paul Elliot

 SIGNATURE PAGE TO THE AMENDED
AND RESTATED 
 INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
 BAY PARTNERS XI, L.P. 
  

			
	By:	 	Bay Management Company XI, LLC, General Partner
		
	By:	 	/s/ Neal Dempsey
		 	Neal Dempsey, Manager

 BAY PARTNERS XI
PARALLEL FUND, L.P. 
  

			
	By:	 	Bay Management Company XI, LLC, General Partner
		
	By:	 	/s/ Neal Dempsey
		 	Neal Dempsey, Manager

  

			
	Address:	 	490 South California Avenue, Suite 200
Palo Alto, CA 94306

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
 MADRONE PARTNERS, L.P. 

			
		
	By:	 	Madrone Capital Partners, LLC, its general partner
		
	By:	 	/s/ James McInnis
	Name:	 	James McInnis
	Title:	 	Managing Member

			
		
	Address:	 	 3000 Sand Hill Road
 Building
1, Suite 150
 Menlo Park, CA 94025

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
 ROCKPORT CAPITAL PARTNERS II, L.P. 

			
		
	By:	 	RockPort Capital II, L.L.C., its General Partner
		
	By:	 	/s/ Stoddard Wilson
	Name:	 	Stoddard Wilson
	Title:	 	Managing Member

			
		
	Address:	 	 c/o RockPort Capital
 160
Federal Street
 18th Floor
 Boston, MA
02110-1700

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 

INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
 THIRD POINT PARTNERS QUALIFIED L.P. 
 THIRD POINT PARTNERS L.P. 

THIRD POINT OFFSHORE MASTER FUND L.P. 

THIRD POINT ULTRA MASTER FUND L.P. 

			
		
	By:	 	Third Point LLC
		
	By:	 	/s/ James P. Gallagher
	Name:	 	James P. Gallagher
	Title:	 	CAO

			
		
	Address:	 	 c/o Third Point LLC
 390 Park
Ave., 18th Floor

New York, NY 10022
 Attn: James P.
Gallagher

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 

INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
  

			
	APPLIED VENTURES LLC
		
	By:	 	/s/ J. Christopher Moran
	Name:	 	J. Christopher Moran
	Title:	 	Vice President, General Manager
		
	Address:	 	c/o Applied Materials, Inc.
3050 Bowers Avenue
Santa Clara, CA 95054-3299

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 INVESTORS: 
  

			
	COMPASS HORIZON FUNDING COMPANY LLC
		
	By:	 	 Horizon Technology Finance Management LLC,
 its adviser

		
	By:	 	/s/ Robert D. Pomeroy, Jr.
	Name:	 	Robert D. Pomeroy, Jr.
	Title:	 	Chief Executive Officer

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
  

			
	JOHN F. NICHOLS REVOCABLE TRUST,
UNDER AGREEMENT DATED JUNE 12, 1998
		
	By:	 	/s/ John F. Nichols
	Name:	 	John F. Nichols
	Title:	 	Trustee

 SIGNATURE PAGE TO THE AMENDED
AND RESTATED 
 INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
  

			
		
	By:	 	/s/ Daniel Loeb
		 	Daniel Loeb

 SIGNATURE PAGE TO THE
AMENDED AND RESTATED 
 INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first above written. 
 THE INVESTORS: 
  

			
	DONALD & MAUREEN GREEN LIVING TRUST
		
	By:	 	/s/ Donald Green
	Name:	 	Donald Green
	Title:	 	Trustee
		
	Address:	 	950 Shiloh Vista
Santa Rosa, CA 95403

SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
3/30, 2010. 
 THE INVESTORS: 
  

			
	G&W VENTURES
		
	By:	 	/s/ William C. White
	Name:	 	William C. White
	Title:	 	Manager
		
	Address:	 	201 1st Street, Suite 100
Petaluma, CA 94952

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
April 5, 2010. 
 THE INVESTORS: 
  

			
	Flextronics International USA, Inc., a California corporation
		
	By:	 	/s/ Donald Standley
	Name:	 	Donald Standley
	Title:	 	Vice President, Director of Tax

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
April 5, 2010. 
 INVESTORS: 
  

			
	PCG CLEAN ENERGY & TECHNOLOGY FUND LLC
		
	By:	 	/s/ Mark A. Nydau
	Name:	 	Mark A. Nydau
	Title:	 	Managing Director
		
	By:	 	/s/ Kara Boone King
	Name:	 	Kara Boone King
	Title:	 	Managing Director

  

			
	PCG CLEAN ENERGY & TECHNOLOGY FUND (EAST) LLC
		
	By:	 	/s/ Mark A. Nydau
	Name:	 	Mark A. Nydau
	Title:	 	Managing Director
		
	By:	 	/s/ Kara Boone King
	Name:	 	Kara Boone King
	Title:	 	Managing Director
		
	Address:	 	1200 Prospect Street, Suite 200
La Jolla, CA 92037

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
April 5, 2010. 
 INVESTORS: 

			
		
	By: 	 	/s/ Jim Carstensen
		 	Jim Carstensen
		
	By:	 	/s/ Robert Schwartz
		 	Robert Schwartz
		
	By:	 	/s/ Timothy Lash
		 	Timothy Lash
		
	By:	 	/s/ David Fisher
		 	David Fisher
		
	By:	 	/s/ William Orenstein
		 	William Orenstein
		
	By:	 	/s/ Tom Birdsall and Rebecca Green
		 	Tom Birdsall and Rebecca Green
		
	By:	 	/s/ Ellen Schwab
		 	Ellen Schwab

 SIGNATURE
PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
May 21, 2010. 
 INVESTORS: 
  

			
	CONTRA COSTA CAPITAL, LLC
		
	By:	 	/s/ Stephan Segouin
	Name:	 	Stephan Segouin
	Title:	 	Vice President

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
May 21, 2010. 
 INVESTORS: 
  

			
	KPCB HOLDINGS, INC., AS NOMINEE
		
	By:	 	/s/ John Denniston
	Name:	 	John Denniston
	Title:	 	Senior Vice President

 SIGNATURE PAGE TO THE AMENDED AND RESTATED 
 INVESTORS’ RIGHTS
AGREEMENT OF ENPHASE ENERGY, INC. 

 Schedule A 

Investors 
 Bay Partners
XI, L.P. 
 Bay Partners XI Parallel Fund, L.P. 
 Madrone Partners, L.P. 
 RockPort Capital Partners II, LP 

Third Point Partners Qualified L.P. 
 Third Point
Partners L.P. 
 Third Point Offshore Master Fund L.P. 
 Third Point Ultra Master Fund L.P. 
 TGI Holdings, LLC 

James A. Stern Trust F/B/O Peter Stern 
 James A.
Stern Trust F/B/O David Stern 
 Thomas G. Mendell 
 Emil Meshberg 
 Applied Ventures, LLC 
 ATEL Ventures, Inc. as Trustee 
 Raghuveer Belur 

Tom Birdsall and Rebecca Green 
 Martin Fornage

 G&W Ventures 
 Donald and Maureen
Green Living Trust 
 Michael Hatfield 

J. Rick Johnston 
 Ted Lord 

Steve Milborrow 
 William Orenstein 

Ellen Schwab 
 Redstone Investments LLC

 J. Steve Sheppard 
 F&W
Investments LLC – Series 2006 
 Daniel Loeb 
 Timothy Lash 
 Robert Schwartz 
 Brian Hamel 
 Ray Moser 
 David Fisher 
 Restatement of James H. Carstensen 1995 Revocable Trust dated, March 13, 2000

 Ed Falsetti 
 Paul Nahi 

John F. Nichols Revocable Trust, under Agreement dated June 12, 1998 
 Andrew Nichols 
 PCG Clean Energy & Technology Fund LLC 

PCG Clean Energy & Technology Fund (East) LLC 

Paul Elliot & Mary E. Elliot 
 Flextronics
International USA, Inc., a California corporation 
 Compass Horizon Funding Company LLC 
 Contra Costa Capital, LLC 
 KPCB Holdings, Inc., as nominee 

 ENPHASE ENERGY, INC. 

AMENDMENT NO. 1 TO INVESTORS’ RIGHTS AGREEMENT 

This Amendment No. 1 to Investors’ Rights Agreement (this “Amendment”) is made as of March
    , 2011, by and among Enphase Energy, Inc., a Delaware corporation (the “Company”), the investors listed on Schedule A hereto (the “Investors”), and amends that certain Amended
and Restated Investors’ Rights Agreement dated March 15, 2010, by and among the Company and the Investors (the “Investors’ Rights Agreement”). 
 RECITALS 
 WHEREAS, the Company and
the Investors entered into the Investors’ Rights Agreement in connection with the sale and issuance of the Company’s Series E Preferred Stock pursuant to the Series E Preferred Stock Purchase Agreement dated March 15, 2010, as amended
by that certain Amendment No. 1 to Series E Preferred Stock Purchase Agreement dated May 21, 2010; 

WHEREAS, in connection with that certain Loan and Security Agreement dated March 11, 2010 (the
“Prior Loan Agreement”), between the Company and Horizon Funding Company LLC (“Horizon”), the Company issued to Horizon a warrant to acquire shares of the Company’s Preferred Stock (the “Preferred
Stock”), dated March 11, 2010 (“Warrant A”), pursuant to which the Company agreed to grant Horizon certain registration rights with respect to the shares of the Company’s Common Stock issuable upon conversion of
the Preferred Stock issuable upon exercise of Warrant A, which registration rights were granted under the Investors’ Rights Agreement; 
 WHEREAS, in connection with an additional credit facility with Horizon, the Company will issue an additional warrant to acquire shares of Preferred Stock to Horizon
(“Warrant B”) pursuant to the terms and conditions of that certain Amended and Restated Loan and Security Agreement dated as of March     , 2011, between the Company and Horizon (the “Restated Loan
Agreement”); 
 WHEREAS, as a condition to the financing pursuant to the Restated
Loan Agreement, the Company has agreed to grant Horizon registration rights with respect to the shares of the Company’s Common Stock issuable upon conversion of the Preferred Stock issuable upon exercise of Warrant B (the “Registration
Rights”), and the Investors desire to amend the Investors’ Rights Agreement to include such Registration Rights thereunder as provided herein; and 
 WHEREAS, pursuant to Section 4.3 of the Investors’ Rights Agreement, this Amendment is being executed by the Company and Investors holding at least 60% of
the outstanding shares of Preferred Stock held by the Investors, thereby permitting the Investors’ Rights Agreement to be amended by this Amendment. 

 NOW, THEREFORE, for and in consideration
of the mutual promises and covenants set forth herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties to this Amendment hereby agree as follows: 

AGREEMENT 
 1.
Section 1.1(f) of the Investors’ Rights Agreement is amended and restated to read in its entirety as follows: 

“(f) The term “Horizon Warrants” means (i) that certain warrant to purchase Preferred Stock of the Company
dated March 11, 2010, issued by the Company to Compass Horizon Funding Company LLC (“Horizon”) pursuant to the Venture Loan and Security Agreement by and between the Company and Horizon, dated March 11, 2010, as amended,
and (ii) that certain warrant to purchase Preferred Stock of the Company dated March     , 2011, issued by the Company to Horizon pursuant to the Amended and Restated Venture Loan and Security Agreement by and between
the Company and Horizon, dated March     , 2011. 
 2. Section 1.1(k) of the Investors’ Rights Agreement is
amended and restated to read in its entirety as follows: 
 “(k) The term “Registrable Securities” means
(i) the shares of Common Stock issuable or issued upon conversion of any shares of the Company’s Preferred Stock, including Preferred Stock issuable upon exercise of warrants then outstanding; and (ii) any other shares of Common Stock
of the Company issued (or issuable upon the conversion or exercise of any warrant, right or other security) to the holders of the shares listed in (i) above; excluding in all cases any Registrable Securities sold by a person in a transaction in
which such person’s rights under this Agreement are not assigned. Notwithstanding the foregoing, Common Stock or other securities shall only be treated as Registrable Securities if and so long as: (A) they have not been sold to or through
a broker or dealer or underwriter in a public distribution or a public securities transaction, (B) they have not been sold in a transaction exempt from the registration and prospectus delivery requirements of the Securities Act under
Section 4(1) thereof so that all transfer restrictions, and restrictive legends with respect thereto, if any, are removed upon the consummation of such sale, or (C) the rights of the Holder thereof have not been terminated in accordance
with Section 1.15 below. Notwithstanding the foregoing, the shares of Common Stock issuable or issued upon conversion of any shares of the Company’s Preferred Stock issuable upon exercise of the Horizon Warrants shall not be deemed
Registrable Securities for purposes of Section 1.2;” 
 3. Effectiveness; Prior Amendment; Continuity of Terms. This Amendment
shall be effective when executed by the Company and by the Investors holding at least 60% of the outstanding shares of Preferred Stock held by the Investors. All the other terms and provisions of the Investors’ Rights Agreement shall remain in
full force and effect. 

  
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 4. Counterparts. This Amendment may be executed in counterparts all of which together shall
constitute one and the same instrument. 
 [Signature Pages Follow] 

  
 -3-

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 THE COMPANY: 
  

			
	ENPHASE ENERGY, INC.
		
	By:	 	/s/ Paul Nahi
	Name:	 	Paul Nahi
	Title:	 	President and CEO

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
	BAY PARTNERS XI, L.P.
		
	By:	 	Bay Management Company XI, LLC, General Partner

			
		
	By:	 	/s/ Neal Dempsey
	Name:	 	Neal Dempsey
	Title:	 	Manager

  

			
	BAY PARTNERS XI PARALLEL FUND, L.P.
		
	By:	 	Bay Management Company XI, LLC, General Partner

			
		
	By:	 	/s/ Neal Dempsey
	Name:	 	Neal Dempsey
	Title:	 	Manager

			
		
	Address:	 	 490 South California Avenue, Suite 200
 Palo Alto, CA 94306

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
	MADRONE PARTNERS, L.P.
		
	By:	 	Madrone Capital Partners, LLC, its General Partner

			
		
	By:	 	/s/ Jamie McJunkin
	Name:	 	Jamie McJunkin
	Title:	 	Managing Member

			
		
	Address:	 	 3000 Sand Hill Road
 Building
1, Suite 150
 Menlo Park, CA 94025

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
	 THIRD POINT PARTNERS QUALIFIED L.P.
 THIRD POINT PARTNERS L.P.
 THIRD POINT OFFSHORE MASTER FUND L.P.

THIRD POINT ULTRA MASTER FUND L.P.

			
		
	By:	 	Third Point LLC
		
	By:	 	/s/ James Gallagher
	Name:	 	James Gallagher
	Title:	 	CAO

			
		
	Address:	 	 c/o Third Point LLC
 390 Park
Ave., 18th Floor

New York, NY 10022
 Attn: James P.
Gallagher

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
	ROCKPORT CAPITAL PARTNERS II, L.P.
		
	By:	 	RockPort Capital II, L.L.C., its General Partner

			
		
	By:	 	/s/ Stoddard Wilson
	Name:	 	Stoddard Wilson
	Title:	 	Managing Member

			
		
	Address:	 	 c/o RockPort Capital
 160
Federal Street
 18th Floor
 Boston, MA
02110-1700

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
	KPCB HOLDINGS, INC., AS NOMINEE
		
	By:	 	/s/ John Denniston
	Name:	 	John Denniston
	Title:	 	Senior Vice President

 

			
	Address:	 	2750 Sand Hill Road
Menlo Park, CA 94025

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date
first written above. 
 INVESTORS: 
  

			
		
	By:	 	 
		 	Paul Nahi
		
	By:	 	/s/ Raghuveer Belur
		 	Raghuveer Belur
		
	By:	 	 
		 	Martin Fornage

 ENPHASE ENERGY, INC. 
 AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT 

 Schedule A 

Investors 
 Bay Partners
XI, L.P. 
 Bay Partners XI Parallel Fund, L.P. 
 Madrone Partners, L.P. 
 RockPort Capital Partners II, LP 

Third Point Partners Qualified L.P. 
 Third Point
Partners L.P. 
 Third Point Offshore Master Fund L.P. 
 Third Point Ultra Master Fund L.P. 
 TGI Holdings, LLC 

James A. Stern Trust F/B/O Peter Stern 
 James A.
Stern Trust F/B/O David Stern 
 Thomas G. Mendell 
 Emil Meshberg 
 Applied Ventures, LLC 
 ATEL Ventures, Inc. as Trustee 
 Raghuveer Belur 

Tom Birdsall and Rebecca Green 
 Martin Fornage

 G&W Ventures 
 Green Ventures
Capital II 
 Michael Hatfield 
 J. Rick
Johnston 
 Ted Lord 
 Steve Milborrow

 William Orenstein 
 Ellen Schwab

 Redstone Investments LLC 
 J. Steve
Sheppard 
 F&W Investments LLC – Series 2006 
 Daniel Loeb 
 Timothy Lash 
 Robert Schwartz 
 Brian Hamel 
 Ray Moser 
 David Fisher 
 Restatement of James H. Carstensen 1995 Revocable Trust dated, March 13, 2000 
 Ed Falsetti

 Paul Nahi 
 John F. Nichols Revocable
Trust, under Agreement dated June 12, 1998 
 Andrew Nichols 
 CalPERS Clean Energy & Technology Fund, LLC 
 PCG Clean Energy & Technology Fund (East) LLC

 Paul Elliot & Mary E. Elliot 

Flextronics International USA, Inc., a California corporation 
 Compass Horizon Funding Company LLC 
 Contra Costa Capital, LLC 

KPCB Holdings, Inc., as nominee

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