SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC  20549
SCHEDULE 13D (Rule 13d-101)
UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.  ) 1
Obalon Therapeuticss, Inc.
(Name of Issuer)
Common Stock, $.001 par value
(Title of Class of Securities)
67424L100
(CUSIP Number)
Domain Associates, LLC	Ropes & Gray LLP
One Palmer Square	1211 Avenue of the Americas
Princeton, NJ  08542	New York, NY 10036
Attn: Lisa A. Kraeutler	Attn: Morri H. Weinberg, Esq
Tel: (609) 683-5656	Tel: (212) 596-9000
(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
August 23, 2018
(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box.    [  ]

Note.  Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.  See Rule 13d-7 for other parties to whom copies are to be sent.

¹ The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

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

Cusip No. 67424L100

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE  PERSONS (VOLUNTARY)			Domain Partners VII, L.P.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [X] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			WC
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS  REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	5,654,178*
		8.	SHARED VOTING POWER	0
		9.	SOLE DISPOSITIVE POWER	5,654,178*
		10.	SHARED DISPOSITIVE POWER	0
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			5,654,178*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			24.3%**
14.	TYPE OF REPORTING PERSON			PN

* Includes 19,849 shares issuable upon exercise of Warrants.

** Based on 23,285,210 shares of Common Stock outstanding as of August 29, 2018.

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Cusip No. 67424L100

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY)			DP VII Associates, L.P.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [X] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			Not Applicable
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS  REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	49,908*
		8.	SHARED VOTING POWER	0
		9.	SOLE DISPOSITIVE POWER	49,908*
		10.	SHARED DISPOSITIVE POWER	0
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			49,908*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			0.2% **
14.	TYPE OF REPORTING PERSON			PN

* Includes 338 shares issuable upon exercise of Warrants.

** Based on 23,285,210 shares of Common Stock outstanding as of August 29, 2018.

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Cusip No. 67424L100

SCHEDULE 13D

Item 1. Security and Issuer.

This statement on Schedule 13D relates to the Common Stock, $.001 par value (the "Common Stock"), of Obalon Therapeutics, Inc., a Delaware corporation (the "Issuer"). The address of the principal executive office of the Issuer is 5421 Avenida Encinas, Suite F, Carlsbad, CA  92008.

Item 2. Identity and Background.

(a)This Schedule 13D is being filed on behalf of each of the following persons pursuant to Rule 13d-1(k) of Regulation D-G under the Securities Exchange Act of 1934, as amended (the "Exchange Act"):  (i) Domain Partners VII, L.P., a Delaware limited partnership ("DP VII"), and (ii) DP VII Associates, L.P., a Delaware limited partnership ("DP VII A") (each, a "Reporting Person" and together, the "Reporting Persons").  The Reporting Persons are making this single, joint filing because they may be deemed to constitute a "group" within the meaning of Section 13(d)(3) of the Exchange Act.  The agreement among the Reporting Persons to file as a group (the "Joint Filing Agreement") is filed herewith as Exhibit A.

(b)-(c)The principal business of each of DP VII and DP VII A is that of a private investment partnership.  The sole general partner of DP VII and DP VII A is One Palmer Square Associates VII, LLC, a Delaware limited liability company ("OPSA VII").  The principal business of  OPSA VII is that of acting as the general partner of DP VII and DP VII A.  James C. Blair, Brian H. Dovey, Jesse I. Treu, Brian K. Halak, and Nicole Vitullo are the managing members of OPSA VII.  The principal business address of each of the entities and individuals named in this Item 2 is c/o Domain Associates, LLC., One Palmer Square, Princeton, New Jersey  08542.

(d)–(e)During the last five years, none of the Reporting Persons or individuals named in this Item 2 has been  (i) convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors); or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in his being subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f)Each of the individuals named in this Item 2 is a citizen of the United States.

Item 3. Source and Amount of Funds or Other Consideration

On August 22, 2018, the Issuer entered into a Securities Purchase Agreement (the "Purchase Agreement") with the investors named therein (the "Investors"), including DP VII. Pursuant to the Purchase Agreement, the Issuer agreed to sell an aggregate of 5,494,506 shares of Common Stock (the "Shares") for aggregate gross proceeds of approximately $10.0 million (the "Offering"). The purchase price for each Share was $1.82. The Offering closed on August 23, 2018. DP VII purchased 1,648,359 Shares, for an aggregate purchase price of $3,000.013.38.  The source of funds for such purchase was the working capital, or funds available for investment, of DP VII. The Purchase Agreement is filed herewith as Exhibit B, and any description thereof is qualified in its entirety by reference thereto.

Item 4. Purpose of Transaction.

DP VII participated in the Offering for investment purposes.  Except as otherwise described in this statement, the Reporting Persons do not have any present plans or proposals that relate to or would result in: (i) the acquisition by any person of additional securities of the Issuer, or the disposition of securities of the Issuer; (ii) an extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Issuer or any of its subsidiaries; (iii) a sale or transfer of a material amount of assets of the Issuer or any of its subsidiaries; (iv) any change in the present board of directors or management of the Issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board; (v) any material change in the present capitalization or dividend policy of the Issuer; (vi) any other material change in the Issuer's business or corporate structure; (vii) changes in the Issuer's charter, by-laws or instruments corresponding thereto or other actions which may impede the acquisition of control of the Issuer by any person; (viii) causing a class of securities of the Issuer to be de-listed from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association; (ix) a class of equity securities of the Issuer becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Exchange Act; or (x) any action similar to any of those enumerated above.  The Reporting Persons may change their present intentions at any time and therefore reserve their right to make alternative plans or proposals in the future or take any other steps to enhance the value of their investment.  The Reporting Persons further reserve the right to increase, decrease (including by distributions in kind to their partners or members) or eliminate their investment in the Issuer, or take any other action relative thereto, in all cases as permitted by the relevant securities laws and any agreement or agreements that have been or may be entered into with the Issuer.

Item 5. Interest in Securities of the Issuer.

(a)The information requested by this paragraph is incorporated herein by reference to the cover pages to this Schedule 13D.

(b)The managing members of OPSA VII may be deemed to share the power to vote or direct the voting of and to dispose or direct the disposition of the securities of the Issuer that are beneficially owned by DP VII and DP VII A.  Each of the managing members of OPSA VII disclaims beneficial ownership of all securities other than those he or she owns directly, if any, or by virtue of his or her indirect pro rata interest, as a managing member of OPSA VII , in the securities owned by DP VII and/or DP VII A.

(c)Not Applicable.

(d)Except as described in this statement, no person has the power to direct the receipt of dividends on or the proceeds of sales of, the shares of Common Stock owned by the Reporting Persons.

(e)Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

On August 22, 2018, the Issuer also entered into a Registration Rights Agreement (the "Registration Rights Agreement") with the Investors. Pursuant to the Registration Rights Agreement, the Issuer agreed to prepare and file a registration statement with the Securities and Exchange Commission (the "SEC") within 30 days after the closing of the Offering for purposes of registering the resale of the Shares. The Issuer also agreed to use its commercially reasonable efforts to cause this registration statement to be declared effective by the SEC within 60 calendar days after the closing of the Offering (90 days in the event the registration statement is reviewed by the SEC), and to indemnify the selling holders under the registration statement from certain losses, claims, damages and liabilities and to pay all fees and expenses (excluding underwriting discounts and selling commissions) incident to the performance of, or compliance with, the Issuer's obligations under the Registration Rights Agreement. The Registration Rights Agreement is filed herewith as Exhibit C, and any description thereof is qualified in its entirety by reference thereto.

Item 7. Material to be Filed as Exhibits

Exhibit A - Joint Filing Agreement

Exhibit B - Purchase Agreement

Exhibit C – Registration Rights Agreement

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Cusip No. 67424L100

SIGNATURES

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

Dated:  August 31, 2018

DOMAIN PARTNERS VII, L.P.
By:	One Palmer Square Associates VII, LLC, General Partner
By:	/s/ Lisa A. Kraeutler
	Attorney-in-Fact
DP VII ASSOCIATES, L.P.
By:	One Palmer Square Associates VII, LLC, General Partner
By:	/s/ Lisa A. Kraeutler
	Attorney-in-Fact

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Cusip No. 67424L100

Exhibit A

AGREEMENT REGARDING THE JOINT FILING OF

SCHEDULE 13D

______________________________

The undersigned hereby agree that the statement on Schedule 13D, and any amendments thereto, to which this Agreement is annexed as Exhibit A is and will be filed on behalf of each of them in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated:  August 31, 2018

DOMAIN PARTNERS VII, L.P.
By:	One Palmer Square Associates VII, LLC, General Partner
By:	/s/ Lisa A. Kraeutler
	Attorney-in-Fact
DP VII ASSOCIATES, L.P.
By:	One Palmer Square Associates VII, LLC, General Partner
By:	/s/ Lisa A. Kraeutler
	Attorney-in-Fact

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Cusip No. 67424L100

Exhibit B

PURCHASE AGREEMENT

OBALON THERAPEUTICS, INC.

SECURITIES PURCHASE AGREEMENT

This Securities Purchase Agreement ("Agreement") is made as of August 22, 2018 (the "Effective Date"), by and among Obalon Therapeutics, Inc., a Delaware corporation (the "Company"), and each of those persons and entities, severally and not jointly, listed as a Purchaser on the Schedule of Purchasers attached as Exhibit A hereto (the "Schedule of Purchasers").  Such persons andentities are hereinafter collectively referred to herein as "Purchasers" and each individually as a "Purchaser."

AGREEMENT

In consideration of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Company, and each Purchaser (severally and not jointly) hereby agree as follows:

SECTION 1.AUTHORIZATION OF SALE OF THE SHARES.

The Company has authorized the sale and issuance of 5,494,506 shares of its Common Stock, par value $0.001 per share (the "Common Stock"), on the terms and subject to the conditions set forth in this Agreement.  The shares of Common Stock sold hereunder at the Closing (as defined below) shall be referred to as the "Shares."

SECTION 2.AGREEMENT TO SELL AND PURCHASE THE SHARES.

2.1Sale of Shares.  At the Closing (as defined in Section 3), the Company will sell to each Purchaser, and each Purchaser will purchase from the Company, the number of Shares set forth opposite such Purchaser's name on the Schedule of Purchasers at a purchase price of $1.82 per Share.  The aggregate purchase price for the Shares purchased by each Purchaser (the "Purchase Amount") is set forth opposite such Purchaser's name on the Schedule of Purchasers.

2.2Form of Payment.  Except as may otherwise be agreed to among the Company and one or more of the Purchasers, on or prior to the business day immediately prior to the Closing Date (as defined below), each Purchaser shall wire its Purchase Amount, in United States dollars and in immediately available funds, to a non-interest bearing escrow account established by the Company with Citibank, N.A. (the "Escrow Agent") as set forth on Schedule 2 hereto (the aggregate amounts received being held in escrow by the Escrow Agent are referred to herein as the "Escrow Amount").

2.3Separate Agreement.  Each Purchaser shall severally, and not jointly, be liable for only the purchase of the Shares that appear on the Schedule of Purchasers that relate to such Purchaser.  The Company's agreement with each of the Purchasers, is a separate agreement, and the sale of Shares to each of the Purchasers is a separate sale.  The obligations of each Purchaser hereunder are expressly not conditioned on the purchase by any or all of the other Purchasers of the Shares such other Purchasers have agreed to purchase.

SECTION 3.CLOSING AND DELIVERY.

3.1Closing.  The closing of the purchase and sale of the Shares (which Shares are set forth in the Schedule of Purchasers) pursuant to this Agreement (the "Closing") shall be held on August 27, 2018 at the offices of Latham & Watkins LLP, 650 Town Center Drive, 20th Floor, Costa Mesa, CA 92626, or on such other date and place as may be agreed to by the Company and the Purchasers (the "Closing Date"). At or prior to the Closing, each Purchaser shall execute any related agreements or other documents required to be executed hereunder, dated on or before the Closing Date.

3.2Issuance of the Shares at the Closing.  On the Closing Date, (a) the Company shall instruct the Escrow Agent to deliver, in immediately available funds, the Escrow Amount constituting the aggregate purchase price to the Company, and (b) the Company shall irrevocably instruct its transfer agent to deliver to each Purchaser evidence of a book entry position (or, if requested in writing by a Purchaser on or before the date hereof, a certificate) evidencing the Shares purchased by such Purchaser hereunder, registered in the name of such Purchaser, or in such nominee name(s) as designated by such Purchaser, representing the number of Shares to be purchased by such Purchaser at such Closing as set forth in the Schedule of Purchasers against payment of the purchase price for such Shares, within three (3) business days after the Closing. The name(s) in which the Shares are to be issued to each Purchaser are set forth in the Purchaser Questionnaire and the Selling Stockholder Notice and Questionnaire in the form attached hereto as Appendices I and II (the "Purchaser Questionnaire" and the "Selling Stockholder Questionnaire," respectively), as completed by each Purchaser, which shall be provided to the Company no later than the Closing Date.

3.3Delivery of the Registration Rights Agreement.  At or before the Closing, the Company and each Purchaser shall execute and deliver the Registration Rights Agreement in the form attached hereto as Appendix III (the "Registration Rights Agreement"), with respect to the registration of the Shares under the Securities Act of 1933, as amended (the "Securities Act").

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SECTION 4.REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.

Except as set forth on the Schedule of Exceptions delivered to the Purchasers concurrently with the execution of this Agreement (the "Schedule of Exceptions") or as otherwise described in the SEC Documents (as defined below), which disclosures qualify these representations and warranties in their entirety, the Company hereby represents and warrants as of the date hereof, and covenants with, the Purchasers as follows:

4.1Organization and Standing.  The Company (a) has been duly incorporated and is validly existing as a corporation in good standing under the laws of Delaware, with full corporate power and authority to own, lease and to operate its properties and conduct its business as presently conducted, and (b) is duly qualified to do business as a foreign corporation and is in good standing under the laws of each jurisdiction where the ownership or leasing of its properties or the conduct of its business requires such qualification, except in the case of clause (b) above, where the failure to be so qualified or be in good standing would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on the business, properties, financial condition, results of operations or prospects of the Company (a "Material Adverse Effect"). Complete and correct copies of the charters and the bylaws or other organizational or governing documents of the Company and all amendments thereto have been made available to the Purchasers.

4.2Corporate Power; Authorization.  The Company has full corporate power and authority to execute and deliver this Agreement and the Registration Rights Agreement (the Registration Rights Agreement, collectively with the Agreement, the "Transaction Documents"), and to issue, sell and deliver the Shares.  Each Transaction Document has been duly authorized, executed and delivered by the Company.  Each Transaction Document constitutes the legal, valid and binding obligation of the Company, enforceable in accordance with its terms, except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws relating to or affecting the enforcement of creditors' rights generally, (ii) as limited by equitable principles generally, including any specific performance and (iii) with respect to the Registration Rights Agreement, as rights to indemnity or contribution may be limited by state or federal laws or public policy underlying such laws.

4.3Subsidiaries.  The Company has no subsidiaries (as defined under the Securities Act) and does not own, directly or indirectly, any shares of stock or any other equity interests or long-term debt securities of any corporation, firm, partnership, joint venture, association or other entity.

4.4Issuance and Delivery of the Shares.  The Shares have been duly and validly authorized and, when issued and paid for in compliance with the provisions of this Agreement, will be duly and validly issued, fully paid and non-assessable and free of statutory and contractual preemptive rights, resale rights, rights of first refusal and similar rights (each, an "Encumbrance"), except for restrictions on transfer under the Transaction Documents, applicable state and federal securities laws and Encumbrances created by or imposed by the Purchasers. Assuming the accuracy of the representations made by each Purchaser in Section 5, the offer and issuance by the Company of the Shares is exempt from registration under the Securities Act.

4.5SEC Documents; Financial Statements.  The Company has filed in a timely manner all documents that the Company was required to file with the Securities and Exchange Commission (the "Commission") under Sections 13, 14(a) and 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), since becoming subject to the requirements of the Exchange Act.  As of their respective filing dates (or, if amended prior to the date of this Agreement, when amended), all documents filed by the Company with the Commission (the "SEC Documents") complied in all material respects with the requirements of the Exchange Act and the rules and regulations of the Commission promulgated thereunder.  None of the SEC Documents as of their respective dates contained any untrue statement of material fact or omitted to state a material fact required to be stated therein or necessary to make the statements made therein, in light of the circumstances under which they were made, not misleading.  There are no contracts or documents that are required to be described in the SEC Documents that have not been so described and filed as required.  The Company has never been an issuer subject to Rule 144(i) under the Securities Act. The financial statements of the Company included or incorporated by reference in the SEC Documents, together with the related notes and schedules, present fairly the consolidated financial position of the Company as of the dates indicated and the consolidated results of operations, cash flows and changes in stockholders' deficit (equity) of the Company for the periods specified and have been prepared in compliance with the requirements of the Securities Act and the Exchange Act and in conformity with U.S. generally accepted accounting principles applied on a consistent basis during the periods involved.

4.6Auditors.  KPMG LLP, who have certified certain financial statements of the Company and delivered their report with respect to the audited financial statements and schedules included in the SEC Documents, are independent registered public accountants as required by the Securities Act and by the rules of the Public Company Accounting Oversight Board.

4.7Capitalization.  The authorized capital stock of the Company consists of 100,000,000 shares of common stock and 10,000,000 shares of preferred stock.  As of the Effective Date, there are no shares of preferred stock issued and outstanding and there are 17,805,704 shares of Common Stock issued and outstanding, of which no shares are owned by the Company.  There are no other shares of any other class or series of capital stock of the Company issued or outstanding.  The Company has no capital stock reserved for issuance, except that, as of the Effective Date, there are 4,935,319 shares of Common Stock reserved for issuance pursuant to the Company's equity incentive plans and outstanding warrants, of which 3,537,424 shares are issuable upon the exercise of stock options outstanding on the date hereof. Except as described in the SEC Documents, the Registration Rights Agreement or as have otherwise been waived (i) no person has the right, contractual or otherwise, to cause the Company to issue or sell to it any shares of Common Stock or shares of any other capital stock or other equity interests of the Company, (ii) no person has any preemptive rights, resale rights, rights of first refusal or other rights to purchase any shares of Common Stock or shares of any other capital stock of or other equity interests in the Company, (iii) no person has the right to act as an underwriter or as a financial advisor to the Company in connection with the offer and sale of the Shares; and (iv) no person has the right, contractual or otherwise, to cause the Company to register under the Securities Act any shares of Common Stock or shares of any other capital stock of or other equity interests in the Company.

4.8Litigation.  Except as disclosed in the SEC Documents, there are no actions, suits, claims, investigations or proceedings pending or, to the Company's knowledge, threatened or contemplated to which the Company or any of its directors or "officers" (within the meaning of Rule 16a-1(f) under the Exchange Act) is or would be a party or of which any of its properties is or would be subject at law or in equity, before or by any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency, or before or by any self-regulatory organization or other non-governmental regulatory authority (including, without limitation, Nasdaq), except any such action, suit, claim, investigation or proceeding which, if resolved adversely to the Company, would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect or prevent or materially interfere with consummation of the transactions contemplated hereby.

4.9Consents. No approval, authorization, consent or order of or filing with any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency, or of or with any self-regulatory organization or other non-governmental regulatory authority (including, without limitation, Nasdaq), or approval of the stockholders of the Company, is required in connection with the issuance and sale of the Shares or the consummation by the Company of the transactions contemplated by this Agreement or the Registration Rights Agreement, other than (i) any necessary qualification under the securities or blue sky laws of the various jurisdictions in which the Shares are being offered and sold, (ii) any listing applications and related consents or any notices required by Nasdaq in the ordinary course of the offering of the Shares, and (iii) the filing of one or more registration statements and all amendments thereto with the Commission as contemplated by the Registration Rights Agreement.

4.10No Breach or Violation. The Company is not in breach or violation of or in default under (nor has any event occurred which, with notice, lapse of time or both, would result in any breach or violation of, constitute a default under or give the holder of any indebtedness (or a person acting on such holder's behalf) the right to require the repurchase, redemption or repayment of all or a part of such indebtedness under) (A) its charter or bylaws or other organizational or governing documents, or (B) any indenture, mortgage, deed of trust, bank loan or credit agreement or other evidence of indebtedness, or any license, lease, contract or other agreement or instrument to which it is a party or by which it or any of its properties may be bound or affected, or (C) any applicable federal, state, local or foreign law, regulation or rule, or (D) any rule or regulation of any self-regulatory organization or other non-governmental regulatory authority having jurisdiction over the Company (including, without limitation, the rules and regulations of Nasdaq), or (E) any decree, judgment or order applicable to it or any of its properties, except in the case of the foregoing clauses (B), (C), (D) and (E), for any such breaches, violations, defaults or events that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

4.11No Default or Consents. The execution, delivery and performance of this Agreement and the Registration Rights Agreement, the issuance and sale of the Shares and the consummation of the transactions contemplated by this Agreement and the Registration Rights Agreement will not conflict with, result in any breach or violation of or constitute a default under (nor constitute any event which, with notice, lapse of time or both, would result in any breach or violation of, constitute a default under or give the holder of any indebtedness (or a person acting on such holder's behalf) the right to require the repurchase, redemption or repayment of all or a part of such indebtedness under) (or result in the creation or imposition of a lien, charge or encumbrance on any property or assets of the Company pursuant to) (A) the charter or bylaws or other organizational or governing documents of the Company, or (B) any indenture, mortgage, deed of trust, bank loan or credit agreement or other evidence of indebtedness, or any license, lease, contract or other agreement or instrument to which the Company is a party or by which it or any of its properties may be bound or affected, or (C) any applicable federal, state, local or foreign law, regulation or rule, or (D) any rule or regulation of any self-regulatory organization or other non-governmental regulatory authority having jurisdiction over the Company or the Shares (including, without limitation, the rules and regulations of Nasdaq), or (E) any decree, judgment or order applicable to the Company or any of its properties; except in the case of the foregoing clauses (B), (C), (D) and (E), for any such breaches, violations, defaults or events that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

4.12No Material Adverse Change.  Subsequent to the respective dates as of which information is given in the SEC Documents, in each case excluding any amendments or supplements to the foregoing made after the execution of this Agreement, there has not been (i) any material adverse change, or any development involving a prospective material adverse change, in the business, properties, management, financial condition or results of operations of the Company, (ii) any transaction which is material to the Company, (iii) any obligation or liability, direct or contingent (including any off-balance sheet obligations), incurred by the Company, which is material to the Company, (iv) any change in the capital stock or outstanding indebtedness of the Company or (v) any dividend or distribution of any kind declared, paid or made on the capital stock of the Company.

4.13No General Solicitation.  Neither the Company nor any Person acting on its behalf, has engaged in any form of general solicitation or general advertising (within the meaning of Regulation D promulgated under the Securities Act) in connection with the offer or sale of the Shares.

4.14No Integrated Offering.  Neither of the Company or any Person acting on its behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any Company security, under circumstances that would adversely affect reliance by the Company on Section 4(a)(2) of the Securities Act or require registration of any of the Shares under the Securities Act or cause this offering of the Shares to be integrated with prior offerings by the Company for purposes of the Securities Act.

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Cusip No. 67424L100

4.15Intellectual Property.  The Company owns, or has obtained valid and enforceable licenses for, or other rights to use, the inventions, patent applications, patents, trademarks (both registered and unregistered), tradenames, service names, copyrights, trade secrets and other proprietary information described in the SEC Documents as being owned or licensed by them or which are necessary for the conduct of its business as currently conducted or as currently proposed to be conducted (including the commercialization of products or services described in the SEC Documents as under development), except where the failure to own, license or have such rights would not, individually or in the aggregate, have a Material Adverse Effect (collectively, "Intellectual Property"); (i) there are no third parties who have or, to the Company's knowledge, will be able to establish rights to any Intellectual Property, except for, and to the extent of, the ownership rights of the owners of the Intellectual Property which the SEC Documents disclose is licensed to the Company; (ii) there is no infringement by third parties of any Intellectual Property; (iii) there is no pending or, to the Company's knowledge, threatened action, suit, proceeding or claim by others challenging the Company's rights in or to any Intellectual Property, and the Company is unaware of any facts which could form a reasonable basis for any such action, suit, proceeding or claim; (iv) there is no pending or, to the Company's knowledge, threatened action, suit, proceeding or claim by others challenging the validity, enforceability or scope of any Intellectual Property, and the Company is unaware of any facts which could form a reasonable basis for any such action, suit, proceeding or claim; (v) except as described in the SEC Documents, there is no pending or, to the Company's knowledge, threatened action, suit, proceeding or claim by others that the Company infringes or otherwise violates, or would, upon the commercialization of any product or service described in the SEC Documents as under development, infringe or violate, any patent, trademark, tradename, service name, copyright, trade secret or other proprietary rights of others, and the Company is unaware of any facts which could form a reasonable basis for any such action, suit, proceeding or claim; (vi) the Company has complied with the terms of each agreement pursuant to which Intellectual Property has been licensed to the Company, and all such agreements are in full force and effect; (vii) there is no patent or patent application that contains claims that interfere with the issued or pending claims of any of the Intellectual Property or that challenges the validity, enforceability or scope of any of the Intellectual Property; (viii) there is no prior art that may render any patent application within the Intellectual Property unpatentable that has not been disclosed to the U.S. Patent and Trademark Office or of which the Company is otherwise aware; and (ix) the product candidates described in the SEC Documents as under development by the Company fall within the scope of the claims of one or more patents owned by, or exclusively licensed to, the Company.

4.16Listing and Maintenance Requirements.  The Company' Common Stock is registered pursuant to Section 12(b) or 12(g) of the Exchange Act, and the Company has taken no action designed to, or which to the Company's knowledge, is likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act nor has the Company received any notification that the Commission is contemplating terminating such registration. The Company has not received any notice from Nasdaq regarding the delisting of the Common Stock from Nasdaq or noncompliance with any of the continued listing requirements of Nasdaq.  The Company has no reason to believe that it will not upon issuance of the Shares and for the foreseeable future continue to be, in compliance with all such continued listing requirements.  The issuance of the Shares does not contravene the rules of Nasdaq. The Common Stock is currently eligible for electronic transfer through the Depository Trust Company or another established clearing corporation and the Company is current in payment of the fees to the Depository Trust Company (or such other established clearing corporation) in connection with such electronic transfer.

4.17Disclosure.  The Company understands and confirms that the Purchasers will rely on the representations in this Section 4 in effecting transactions in securities of the Company.  All due diligence materials regarding the Company, its business and the transactions contemplated hereby, furnished by or on behalf of the Company to the Purchasers upon their request are, when taken together with the SEC Documents and Schedule of Exceptions, true and correct in all material respects and do not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements made therein, in light of the circumstances under which they were made, not misleading.

4.18Contracts.  There is no franchise, contract or other document of a character required to be described in the SEC Documents or to be filed as an exhibit thereto, which is not described or filed as required.

4.19Properties and Assets.  The Company has good and marketable title to all property (real and personal, excluding Intellectual Property (as defined above)) described in the SEC Documents as being owned by it, free and clear of all liens, claims, security interests or other encumbrances, except those that do not materially interfere with the use or proposed use of such property by the Company, or as would not materially or adversely affect the value of such property; all the property described in the SEC Documents as being held under lease by the Company is held thereby under valid, subsisting and enforceable leases, except where such failure to hold such property would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect and except that the enforcement thereof may be subject to (i) bankruptcy, insolvency, reorganization, receivership, moratorium, fraudulent conveyance or other similar laws relating to creditor's rights generally and (ii) general principles of equity and the discretion of the court before which any proceeding therefor may be brought.

4.20Taxes.  All federal and other material tax returns required to be filed by the Company have been timely filed (within any applicable time limit extensions permitted by the relevant tax authority) and such tax returns are true, complete and correct in all material respects; all taxes and other assessments of a similar nature (whether imposed directly or through withholding) including any material interest, additions to tax or penalties applicable thereto due or claimed to be due from such entities have been paid, other than those being contested in good faith and for which adequate reserves have been established by the Company.

4.21Investment Company.  The Company is not and, after giving effect to the offering and sale of the Shares, will not be, an "investment company" or an entity "controlled" by an "investment company, as such terms are defined in the Investment Company Act of 1940, as amended.

4.22Insurance.  The Company maintains insurance covering its properties, operations, personnel and business as the Company reasonably deems adequate; such insurance insures against such losses and risks to an extent which is adequate in accordance with customary industry practice to protect the Company and its business; all such insurance is fully in force on the date hereof and is expected to be fully in force at the time of purchase and each additional time of purchase, if any; the Company does not have reason to believe that it will not be able to (i) renew any such insurance as and when such insurance expires or (ii) obtain comparable coverage from similar institutions as may be necessary or appropriate to conduct its business as now conducted at a cost that would not reasonably be expected to result in any Material Adverse Effect.

4.23Price of Common Stock.  The Company has not taken, directly or indirectly, any action designed, or which has constituted or would reasonably be expected to cause or result in the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Shares in violation of Regulation M under the Exchange Act.

4.24Governmental Permits, Etc.  (i) The Company has all necessary licenses, authorizations, consents and approvals and has made all necessary filings required under any applicable law, regulation or rule, and has obtained all necessary licenses, authorizations, consents and approvals from other persons, in order to conduct its business as presently conducted, except where the failure to have, make or obtain the same would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and (ii) the Company is not in violation of, or in default under, or has received notice of any proceedings relating to the revocation or modification of, any such license, authorization, consent or approval or any federal, state, local or foreign law, regulation or rule or any decree, order or judgment applicable to the Company, except where such violation, default, revocation or modification would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

4.25Transactions with Affiliates and Employees.  Except as set forth in the SEC Documents, none of the officers or directors of the Company and, to the knowledge of the Company, none of the employees of the Company is presently a party to any transaction with the Company (other than for services as employees, officers and directors), including any contract, agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to or from, providing for the borrowing of money from or lending of money to or otherwise requiring payments to or from any officer, director or such employee or, to the knowledge of the Company, any entity in which any officer, director, or any such employee has a substantial interest or is an officer, director, trustee, stockholder, member or partner, in each case in excess of $120,000 other than for: (i) payment of salary or consulting fees for services rendered, (ii) reimbursement for expenses incurred on behalf of the Company, (iii) other employee benefits, including stock option agreements under any stock option plan of the Company and (iv) the Transaction Documents.

4.26Internal Control over Financial Reporting.  The Company maintains a system of internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management's general or specific authorization; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain accountability for assets; (iii) access to assets is permitted only in accordance with management's general or specific authorization; and (iv) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences.  Except as set forth in the SEC Documents, the Company's internal controls over financial reporting are effective and the Company is not aware of any material weakness in its internal controls over financial reporting.

4.27Sarbanes-Oxley Act. The Company has established and maintains "disclosure controls and procedures" (as such term is defined in Rules 13a-15 and 15d-15 under the Exchange Act) and "internal control over financial reporting" (as such term is defined in Rules 13a-15 and 15d-15 under the Exchange Act); such disclosure controls and procedures are designed to ensure that material information relating to the Company is made known to the Company's Chief Executive Officer and its Chief Financial Officer by others within those entities, and such disclosure controls and procedures are effective to perform the functions for which they were established; the Company's independent registered public accountants and the Audit Committee of the Board of Directors of the Company have been advised of: (i) all significant deficiencies, if any, in the design or operation of internal controls which could adversely affect the Company's ability to record, process, summarize and report financial data; and (ii) all fraud, if any, whether or not material, that involves management or other employees who have a role in the Company's internal controls; all "significant deficiencies" and "material weaknesses" (as such terms are defined in Rule 1-02(a)(4) of Regulation S-X under the Act) of the Company, if any, have been identified to the Company's independent registered public accountants and are disclosed in the SEC Documents; since the date of the most recent evaluation of such disclosure controls and procedures and internal controls, there have been no material changes in internal controls or in other factors that could materially affect internal controls, including any corrective actions with regard to significant deficiencies and material weaknesses; the principal executive officers (or their equivalents) and principal financial officers (or their equivalents) of the Company have made all certifications required by the Sarbanes-Oxley Act of 2002 (the "Sarbanes-Oxley Act") and any related rules and regulations promulgated by the Commission, and the statements contained in each such certification are complete and correct; the Company and the Company's directors and officers are each in compliance in all material respects with all applicable effective provisions of the Sarbanes-Oxley Act and the rules and regulations of the Commission and the Nasdaq promulgated thereunder.

4.28Labor.  The Company is not engaged in any unfair labor practice. Except for matters which would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, (i) there is (A) no unfair labor practice complaint pending or, to the Company's knowledge, threatened against the Company before the National Labor Relations Board, and no grievance or arbitration proceeding arising out of or under collective bargaining agreements is pending or, to the Company's knowledge, threatened, (B) no strike, labor dispute, slowdown or stoppage pending or, to the Company's knowledge, threatened against the Company and (C) no union representation dispute currently existing concerning the employees of the Company, and (ii) there has been no violation of any federal, state, local or foreign law relating to discrimination in the hiring, promotion or pay of employees, any applicable wage or hour laws or any provision of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), or the rules and regulations promulgated thereunder concerning the employees of the Company.  To the Company's knowledge, (i) no union organizing activities are currently taking place concerning the employees of the Company and (ii) there is no existing or imminent labor disturbance by the employees of any of the Company's principal suppliers, customers or contractors.

4.29ERISA.  (i) No Plan is, and none of the Company or any of its ERISA Affiliates (as defined below) has within the past six years sponsored, maintained, participated in, contributed to, or had any obligation (contingent or otherwise) with respect to any (A) "multiemployer plan" within the meaning of Section 3(37) of ERISA, (B) pension plan subject to Title IV or Part 3 of Title I of ERISA or Section 412 of the Code, (C) "multiple employer plan" within the meaning of Section 413(c) of the Code or (D) multiple employer welfare arrangement within the meaning of Section 3(40) of ERISA; and (ii) except for matters which would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, (A) each "employee benefit plan" (within the meaning of Section 3(3) of ERISA) for which the Company would have any liability (each a "Plan") has been maintained in compliance in all material respects with its terms and with the requirements of all applicable statutes, rules and regulations, including ERISA and the Internal Revenue Code of 1986, as amended, and the regulations and published interpretations thereunder (the "Code"); (B) each Plan that is intended to be qualified under Section 401(a) of the Code is so qualified and nothing has occurred, whether by action or by failure to act, which would cause the loss of such qualification; and (C) there is no pending audit or investigation by the Internal Revenue Service, the U.S. Department of Labor, the Pension Benefit Guaranty Corporation or any other governmental agency or any foreign regulatory agency with respect to any Plan that could reasonably be expected to result in material liability to the Company. "ERISA Affiliate," as used herein, means, with respect to the Company, any member of any group of organizations described in Sections 414(b), (c), (m) or (o) of the Code of which the Company is a member.

4.30Environmental Laws.  The Company and its properties, assets and operations are in compliance with, and the Company holds all permits, authorizations and approvals required under, Environmental Laws (as defined below), except to the extent that failure to so comply or to hold such permits, authorizations or approvals would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; the Company is not aware of any non-compliance with Environmental Laws, any past or present events, conditions, circumstances, activities, practices, actions, omissions or plans that could reasonably be expected to result in non-compliance with Environmental Laws or any current liabilities under Environmental Laws that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; the Company (i) is not the subject of any investigation known to the Company, (ii) has not received any notice or claim, (iii) is not a party to or affected by any pending or, to the Company's knowledge, threatened action, suit or proceeding, (iv) is not bound by any judgment, decree or order or (v) has not entered into any agreement, in each case relating to any alleged violation of any Environmental Law or any actual or alleged release or threatened release or cleanup at any location of any Hazardous Materials (as defined below) (as used herein, "Environmental Law" means any federal, state, local or foreign law, statute, ordinance, rule, regulation, order, decree, judgment, injunction, permit, license, authorization or other binding requirement, or common law, relating to health, safety or the protection, cleanup or restoration of the environment or natural resources, including those relating to the distribution, processing, generation, treatment, storage, disposal, transportation, other handling or release or threatened release of Hazardous Materials, and "Hazardous Materials" means any material (including, without limitation, pollutants, contaminants, hazardous or toxic substances or wastes) that is regulated by or may give rise to liability under any Environmental Law). In the ordinary course of its business, the Company conducts periodic reviews of the effect of the Environmental Laws on its business, operations and properties, in the course of which they identify and evaluate associated costs and liabilities (including, without limitation, any capital or operating expenditures required for cleanup, closure of properties or compliance with the Environmental Laws or any permit, license or approval, any related constraints on operating activities and any potential liabilities to third parties).

4.31Foreign Corrupt Practices.  Neither the Company nor any director or officer of the Company, nor, to the knowledge of the Company, any employee, agent or affiliate of the Company, is aware of or has taken, any action, directly or indirectly, that would result in a violation by such persons or entities of the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder (the "FCPA"), the U.K. Bribery Act 2010, or other applicable anti-corruption laws (collectively, "Anti-Corruption Laws"); the Company will not use the proceeds of the offering of the Shares contemplated hereby in violation of Anti-Corruption Laws; and the Company has instituted and maintains policies and procedures designed to ensure continued compliance therewith.

4.32Money Laundering Laws. The operations of the Company are and have been conducted at all times in material compliance with applicable financial recordkeeping and reporting requirements of the USA Patriot Act, the Bank Secrecy Act of 1970, as amended, the money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency having jurisdiction over the Company (collectively, the "Money Laundering Laws"); and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator or non-governmental authority involving the Company with respect to the Money Laundering Laws is pending or, to the Company's knowledge, threatened.

4.33OFAC. Neither the Company nor any of its officers, nor to the knowledge of the Company, after due inquiry, any director, agent, employee or affiliate of the Company is (i) currently subject to or the target of any economic, financial or trade sanctions administered or enforced by the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, the United Nations Security Council, the European Union, Her Majesty's Treasury of the United Kingdom or any other relevant sanctions authority (collectively, "Sanctions"), or (ii) operating, organized or resident in, or is engaging or has engaged in the past five years in any transaction or dealing, directly or indirectly, with a country or territory that is the target of comprehensive U.S. Sanctions or a designated state sponsor of terrorism (at the time of this Agreement, Cuba, Iran, North Korea, Sudan, Syria, and the Crimea region of Ukraine) (collectively, "Sanctioned Country"); and the Company will not directly or indirectly use the proceeds of the offering of the Shares contemplated hereby, or lend, contribute or otherwise make available such proceeds to any joint venture partner or other person or entity (i) for the purpose of funding, financing or facilitating any activities, business or transaction of or with any person that is the target of Sanctions, or in any Sanctioned Country, or (ii) in any manner that would reasonably be expected to result in the violation of any Sanctions applicable to any party hereto.

4.34Compliance in Clinical Trials.  The clinical studies and tests conducted by the Company or on behalf of the Company, have been and, if still pending, are being conducted in all material respects in accordance with the protocol, investigator agreements, and requirements of the Company's FDA-approved investigational device exemption ("IDE") application and all applicable laws and regulations; the descriptions of the results of the clinical trials contained in the SEC Documents are accurate and complete in all material respects and fairly present the data derived from such trials, and the Company has no knowledge of any other studies or tests the results of which are inconsistent with, or otherwise call into question, the clinical trial results described or referred to in the SEC Documents; the Company has made all such filings and obtained all such licenses, certificates, permits, approvals, clearances, registrations, exemptions, consents and other authorizations required by the Food and Drug Administration of the U.S. Department of Health and Human Services or any other U.S. or foreign government medical device regulatory agency, or health care facility Institutional Review Board (collectively, the "Regulatory Agencies") for the conduct of its business as described in the SEC Documents; the Company has not received any notice of, or other correspondence from, any Regulatory Agency requiring the termination, suspension or modification of any clinical trials that are described or referred to in the SEC Documents; and the Company has operated and currently is in compliance in all material respects with all applicable laws and regulations of the Regulatory Agencies including, without limitation, the Federal Food, Drug and Cosmetic Act ("FFDCA") and its implementing regulations at 21 C.F.R. Parts 50, 54, 56, 58, and 812.

4.35Compliance with Health Care Laws.  The Company has operated and currently is in compliance with all applicable Health Care Laws, except where the failure to do so would not reasonably be expected to have a Material Adverse Effect. For purposes of this Agreement, "Health Care Laws" means: (i) the FFDCA, and the regulations promulgated thereunder; (ii) all applicable foreign and U.S. federal, state, and local health care related fraud and abuse laws and regulations, including, without limitation, the state fraud and abuse prohibitions, including those that apply to all payors (governmental, commercial insurance and self-payors), the U.S. Anti-Kickback Statute (42 U.S.C. § 1320a-7b(b)), the U.S. Physician Payments Sunshine Act (42 U.S.C. § 1320a-7h), the U.S. Civil False Claims Act (31 U.S.C. § 3729 et seq.), the Federal False Statements Law (42 U.S.C. § 1320a-7b(a)), all criminal laws relating to health care fraud and abuse, including but not limited to 18 U.S.C. Sections 286 and 287, and the health care fraud criminal provisions under the U.S. Health Insurance Portability and Accountability Act of 1996 ("HIPAA") (42 U.S.C. § 1320d et seq.), the Civil Monetary Penalties Law (42 U.S.C. § 1320a-7a), the exclusion laws (42 U.S.C. § 1320a-7), the Medicare statute (Title XVIII of the Social Security Act), and the Medicaid statute (Title XIX of the Social Security Act) and the regulations promulgated pursuant to such statutes; and (iii) the administrative simplification provisions of Title II, Subtitle F of HIPAA, as amended, and the regulations promulgated by the Secretary of the United States Department of Health and Human Services to implement the administrative simplification provisions of Title II, Subtitle F of HIPAA, as amended, including the Standards for Privacy of Individually Identifiable Health Information, 45 C.F.R. parts 160 and 164 (subparts A and E); the Security Standards for the Protection of Electronic Protected Health Information, 45 C.F.R. parts 160 and 164 (subparts A and C); Notification in the Case of Breach of Unsecured Protected Health Information, 45 C.F.R. part 164 (subpart D); and the Standards for Electronic Transactions and Code Sets, 45 C.F.R. parts 160 and 162. The Company has not received written notice of any claim, action, suit, proceeding, hearing, enforcement, investigation, arbitration or other action from any court, arbitrator, governmental or regulatory authority, or third-party alleging that any product, operation or activity is in material violation of any Health Care Laws, and, to the Company's knowledge, no such claim, action, suit, proceeding, hearing, enforcement, investigation, arbitration or other action is threatened. To the Company's knowledge, the Company has not engaged in activities which are, as applicable, cause for false claims liability, civil penalties, or mandatory or permissive exclusion from Medicare, Medicaid, or any other state or federal health care program. The Company is not a party to and does not have any ongoing reporting obligations pursuant to any corporate integrity agreements, deferred prosecution agreements, monitoring agreements, consent decrees, settlement orders, plans of correction or similar agreements with or imposed by any governmental or regulatory authority. Additionally, neither the Company nor any of its officers, directors or employees has been excluded, suspended or debarred from participation in any U.S. federal health care program or human clinical research or, to the knowledge of the Company, is subject to a governmental inquiry, investigation, proceeding, or other similar action that could reasonably be expected to result in debarment, suspension, or exclusion. The Company has filed, obtained, maintained or submitted all reports, documents, forms, notices, applications, records, claims, submissions and supplements or amendments as required by the Health Care Laws for the conduct of its business as described in the SEC Documents, and all such reports, documents, forms, notices, applications, records, claims, submissions and supplements or amendments were complete and accurate on the date filed in all material respects (or were corrected or supplemented by a subsequent submission), except in each case, as would not reasonably be expected to have a Material Adverse Effect.

4.36No Disqualification Events.  With respect to the Shares to be offered and sold hereunder in reliance on Rule 506 under the Securities Act, none of the Company, any of its predecessors, any affiliated issuer, any director, executive officer, other officer of the Company participating in the offering hereunder, any beneficial owner of 20% or more of the Company's outstanding voting equity securities, calculated on the basis of voting power, nor any promoter (as that term is defined in Rule 405 under the Securities Act) connected with the Company in any capacity at the time of sale (each, an "Issuer Covered Person" and, together, "Issuer Covered Persons") is subject to any of the "Bad Actor" disqualifications described in Rule 506(d)(1)(i) to (viii) under the Securities Act (a "Disqualification Event"), except for a Disqualification Event covered by Rule 506(d)(2) or (d)(3). The Company has exercised reasonable care to determine whether any Issuer Covered Person is subject to a Disqualification Event.

4.37Use of Form S-3.  The Company meets the registration and transaction requirements for use of Form S-3 for the registration of the Shares for resale by the Purchasers.

9

Cusip No. 67424L100

SECTION 5.REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE PURCHASERS.

5.1Each Purchaser, severally and not jointly, represents and warrants to and covenants with the Company that: 

(a)Such Purchaser (if an entity) is a validly existing corporation, limited partnership, limited liability company, trust, pension plan, or government plan and has all requisite corporate, partnership, limited liability company or other requisite organizational power and authority to enter into and consummate the transactions contemplated by the Transaction Documents and to carry out its obligations hereunder and thereunder, and to invest in the Shares pursuant to this Agreement.

(b)Such Purchaser acknowledges that it can bear the economic risk and complete loss of its investment in the Shares and has such knowledge and experience in financial or business matters that it is capable of evaluating the merits and risks of the investment contemplated hereby.

(c)Such Purchaser has had an opportunity to receive, review and understand all information related to the Company requested by it and to ask questions of and receive answers from the Company regarding the Company, its business and the terms and conditions of the offering of the Shares, and has conducted and completed its own independent due diligence. Such Purchaser acknowledges that the Company has made available the SEC Documents. Based on the information such Purchaser has deemed appropriate, and without reliance upon any placement agent, it has independently made its own analysis and decision to enter into the Transaction Documents. Such Purchaser is relying exclusively on the contents of the Transaction Documents and its own sources of information, investment analysis and due diligence (including professional advice it deems appropriate) with respect to the execution, delivery and performance of the Transaction Documents, the Shares and the business, condition (financial and otherwise), management, operations, properties and prospects of the Company, including but not limited to all business, legal, regulatory, accounting, credit and tax matters.

(d)The Shares to be received by such Purchaser hereunder will be acquired for such Purchaser's own account, not as nominee or agent, and not with a view to the resale or distribution of any part thereof in violation of the Securities Act.

(e)Such Purchaser has no present intention of selling, granting any participation in, or otherwise distributing the same in violation of the Securities Act without prejudice, however, to such Purchaser's right at all times to sell or otherwise dispose of all or any part of such Shares in compliance with applicable federal and state securities laws.

(f)Such Purchaser is not a broker-dealer registered with the Commission under the Exchange Act or an entity engaged in a business that would require it to be so registered. Such Purchaser understands that the Shares are characterized as "restricted securities" under the U.S. federal securities laws inasmuch as they are being acquired from the Company in a transaction not involving a public offering and that under such laws and applicable regulations such securities may be resold without registration under the Securities Act only in certain limited circumstances. Purchaser will not, directly or indirectly, offer, sell, pledge, transfer or otherwise dispose of (or solicit any offers to buy, purchase or otherwise acquire or take a pledge of) any of the securities purchased hereunder except in compliance with the Securities Act, applicable blue sky laws, and the rules and regulations promulgated thereunder.

(g)Such Purchaser is an "accredited investor" within the meaning of Rule 501(a) under the Securities Act.

(h)Such Purchaser has determined based on its own independent review and such professional advice as it deems appropriate that its purchase of the Shares and participation in the transactions contemplated by the Transaction Documents (i) are fully consistent with its financial needs, objectives and condition, (ii) comply and are fully consistent with all investment policies, guidelines and other restrictions applicable to such Purchaser, (iii) have been duly authorized and approved by all necessary action on the part of Purchaser, (iv) do not and will not violate or constitute a default under such Purchaser's charter, by-laws or other constituent document or, to the extent defaults would have a material effect on the Purchaser's ability to perform its obligations under this Agreement, under any law, rule, regulation, agreement or other obligation by which such Purchaser is bound and (v) are a fit, proper and suitable investment for such Purchaser, notwithstanding the substantial risks inherent in investing in or holding the Shares.

(i)The execution, delivery and performance by such Purchaser of the Transaction Documents to which such Purchaser is a party have been duly authorized and each has been duly executed and when delivered will constitute the valid and legally binding obligation of such Purchaser, enforceable against such Purchaser in accordance with their respective terms, subject to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and similar laws of general applicability, relating to or affecting creditors' rights generally.

(j)Such Purchaser is not a broker or dealer registered pursuant to Section 15 of the Exchange Act (a "registered broker-dealer") and is not affiliated with a registered broker-dealer.  Purchaser is not party to any agreement for distribution of any of the Shares.

(k)Such Purchaser shall have completed or caused to be completed and delivered to the Company at no later than the Closing Date, the Purchaser Questionnaire and the Selling Stockholder Questionnaire for use in preparation of the registration statement meeting the requirements set forth in the Registration Rights Agreement and covering the resale by the Purchasers of the Registrable Securities (as defined in the Registration Rights Agreement) (the "Registration Statement"), and the answers to the Purchaser Questionnaire and the Selling Stockholder Questionnaire are true and correct in all material respects as of the date of this Agreement and will be true and correct as of the Closing Date and the effective date of the Registration Statement; provided, that the Purchasers shall be entitled to update such information by providing notice thereof to the Company before the effective date of such Registration Statement.

(l)Such Purchaser understands that no United States federal or state agency, or similar agency of any other country, has reviewed, approved, passed upon, or made any recommendation or endorsement of the Company or the purchase of the Shares.

(m)Such Purchaser has no present intent to effect a "change of control" of the Company as such term is understood under the rules promulgated pursuant to Section 13(d) of the Exchange Act.

(n)Such Purchaser has not taken any of the actions set forth in, or is not subject to, the disqualification provisions of Rule 506(d)(1) of the Securities Act.

(o)Such Purchaser did not learn of the investment in the Shares as a result of any general solicitation or general advertising.

(p)Such Purchaser's residence (if an individual) or offices in which its investment decision with respect to the Shares was made (if an entity) are located at the address immediately below such Purchaser's name on its signature page hereto.

(q)Such Purchaser (including any person controlling, controlled by, or under common control with such Purchaser, as the term "control" is defined pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and its implementing regulations (the "HSR Act")) in connection with the consummation of the transactions contemplated by this Agreement will not be required to and will not complete a filing with the U.S. government pursuant to the HSR Act.

5.2Other than consummating the transactions contemplated hereunder, such Purchaser has not, nor has any person acting on behalf of or pursuant to any understanding with such Purchaser, directly or indirectly executed any purchases or sales, including all "short sales" as defined in Rule 200 of Regulation SHO under the Exchange Act (but shall not be deemed to include the location and/or reservation of borrowable shares of Common Stock) ("Short Sales"), of the securities of the Company during the period commencing as of the time that such Purchaser was first contacted by the Company or any other person regarding the transactions contemplated hereby and ending immediately prior to the Effective Date. Notwithstanding the foregoing, in the case of a Purchaser that is a multi-managed investment vehicle whereby separate portfolio managers manage separate portions of such Purchaser's assets and the portfolio managers have no direct knowledge of the investment decisions made by the portfolio managers managing other portions of such Purchaser's assets, the representation set forth above shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase the Shares covered by this Agreement. Other than to other persons party to this Agreement, such Purchaser has maintained the confidentiality of all disclosures made to it in connection with this transaction (including the existence and terms of this transaction). Notwithstanding the foregoing, for avoidance of doubt, nothing contained herein shall constitute a representation or warranty, or preclude any actions, with respect to the identification of the availability of, or securing of, available shares to borrow in order to effect Short Sales or similar transactions in the future.

5.3Purchaser understands that nothing in this Agreement or any other materials presented to Purchaser in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice.  Purchaser has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchae of the Share.

5.4Legends.

(a)Purchaser understands that, until such time as the Shares have been registered for resale pursuant to the Registration Statement or the Shares may be sold pursuant to Rule 144 under the Securities Act ("Rule 144") without any restriction as to the number of securities as of a particular date that can then be immediately sold, the certificate or book entry notations evidencing the Shares may bear one or more legends in substantially the following form and substance:

"THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY OTHER APPLICABLE SECURITIES LAWS AND HAVE BEEN ISSUED IN RELIANCE UPON AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND SUCH OTHER SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED OR OTHERWISE DISPOSED OF, EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO A TRANSACTION WHICH IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION, IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS, AND IN THE CASE OF A TRANSACTION EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION, UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT THAT SUCH TRANSACTION DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT AND SUCH OTHER APPLICABLE LAWS."

In addition, certificates or book entry notations representing the Shares may contain:

(i)Any legend required by the laws of the State of California, including any legend required by the California Department of Corporations.

(ii)Any legend required by the blue sky laws of any other state to the extent such laws are applicable to the sale of such Shares hereunder.

(iii)A legend regarding affiliate status of the Purchasers set forth in Schedule 1 hereto, in the form included therein.

(b)The Company agrees that at such time as such legend is no longer required under this section, it will, no later than three business days following the delivery by a Purchaser to the Company or the Company's transfer agent of a certificate representing Shares, and if such Shares are certificated, issued with a restrictive legend, together with such representations and covenants of such Purchaser or such Purchaser's executing broker as the Company may reasonably require in connection therewith, deliver or cause to be delivered to such Purchaser a book entry position representing such shares that is free from any legend referring to the Securities Act.  The Company shall not make any notation on its records or give instructions to any transfer agent of the Company that enlarge the restrictions on transfer set forth in this section.  To the extent that certificates or book entry positions are issued representing the Shares, such certificates or book entry positions subject to legend removal hereunder shall be transmitted by the transfer agent of the Company to the Purchasers by crediting the account of such Purchaser's prime broker with the Depository Trust Company ("DTC").  All costs and expenses related to the removal of the legends and the reissuance of any Shares shall be borne by the Company.

(c)The restrictive legend set forth in this section above shall be removed and the Company shall issue a certificate or book entry position without such restrictive legend or any other restrictive legend to the holder of the applicable shares upon which it is stamped or issue to such holder by electronic delivery with the applicable balance account at DTC or in physical certificated shares, if appropriate, if (i) such Shares are registered for resale under the Securities Act (provided that, if the Purchaser is selling pursuant to an effective registration statement registering the Shares for resale, the Purchaser agrees to only sell such Shares during such time that such registration statement is effective and such Purchaser is not aware or has not been notified by the Company that such registration statement has been withdrawn or suspended, and only as permitted by such registration statement); (ii) such Shares are sold or transferred pursuant to Rule 144 (if the transferor is not an affiliate of the Company); or (iii) such Shares are eligible for sale without the requirement for the Company to be in compliance with the current public information required under Rule 144 as to such securities and without volume or manner-of-sale restrictions.  Subject to receipt of such representations, and covenants as are contemplated hereby, following the earlier of (i) the effective date of the Registration Statement or (ii) Rule 144 becoming available for the resale of the Shares, without the requirement for the Company to be in compliance with the current public information required under Rule 144 as to the Shares and without volume or manner-of-sale restrictions, the Company shall issue to the Company's transfer agent the instructions with respect to legend removal consistent with this section and any legal opinion required by the transfer agent with respect thereto.  Any fees (with respect to the transfer agent, the Company's counsel or otherwise) associated with the issuance of such opinion or the removal of such legend shall be borne by the Company.

5.5Restricted Shares.  Purchaser understands that the Shares are characterized as "restricted securities" under the federal securities laws inasmuch as they are being acquired from the Company in a transaction not involving a public offering and that under such laws and applicable regulations such Shares may be resold without registration under the Securities Act only in certain limited circumstances.  In this connection, such Purchaser represents that it is familiar with Rule 144, as presently in effect, and understands the resale limitations imposed thereby and by the Securities Act.

5.6Exculpation Among Purchasers.  Purchaser acknowledges that it is not relying upon any other Purchaser, or any officer, director, employee, agent, partner, member or affiliate of any such other Purchaser, in making its investment or decision to invest in the Company.  Purchaser agrees that neither any Purchaser nor the respective controlling Persons, officers, directors, partners, agents, or employees of any Purchaser shall be liable to any other Purchaser for any action heretofore taken or omitted to be taken by any of them in connection with the purchase of the Shares.

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SECTION 6.CONDITIONS TO COMPANY'S OBLIGATIONS AT THE CLOSING.

The Company's obligation to complete the sale and issuance of the Shares and deliver Shares to each Purchaser, individually, as set forth in the Schedule of Purchasers at the Closing shall be subject to the following conditions to the extent not waived by the Company:

6.1Receipt of Payment.  On or prior to the business date immediately prior to the Closing Date, each Purchaser shall have delivered or caused to be delivered its Purchase Amount, in United States dollars and in immediately available funds, by wire transfer to the Escrow Agent, as set forth on Schedule 2 hereto, and the Company shall have received payment, by wire transfer of immediately available funds, in the full amount of the purchase price for the number of Shares being purchased by each such Purchaser at the Closing as set forth in the Schedule of Purchasers.

6.2Representations and Warranties.  The representations and warranties made by the Purchasers in Section 5 hereof shall be true and correct in all material respects when made, and shall be true and correct in all material respects on the Closing Date with the same force and effect as if they had been made on and as of said date. The Purchaser shall have performed in all material respects all obligations and covenants herein required to be performed by them on or prior to the Closing Date.

6.3Receipt of Executed Documents.  Such Purchaser shall have executed and delivered to the Company the Registration Rights Agreement, the Purchaser Questionnaire and the Selling Stockholder Questionnaire.

SECTION 7.CONDITIONS TO PURCHASERS' OBLIGATIONS AT THE CLOSING.

Each Purchaser's obligation to accept delivery of the Shares and to pay for the Shares shall be subject to the following conditions to the extent not waived by such Purchaser:

7.1Representations and Warranties.  The representations and warranties made by the Company in Section 4 hereof shall be true and correct in all material respects as of, and as if made on, the date of this Agreement and as of the Closing Date, except to the extent any such representation or warranty expressly speaks as of an earlier date, in which case such representation or warranty shall be true and correct as of such earlier date.

7.2Performance. The Company shall have performed in all material respects all obligations and covenants herein required to be performed by it on or prior to the Closing Date.

7.3Receipt of Executed Registration Rights Agreement.  The Company shall have executed and delivered to the Purchasers the Registration Rights Agreement.

7.4Legal Opinion.  The Purchasers shall have received an opinion of Latham & Watkins LLP, special counsel to the Company, dated as of the Closing Date, in form and substance reasonably acceptable to the Purchasers.

7.5Certificate.  Each Purchaser shall have received a certificate signed by the Chief Executive Officer or the Chief Financial Officer to the effect that the representations and warranties of the Company in Section 4 hereof are true and correct in all material respects as of, and as if made on, the date of this Agreement and as of the Closing Date and that the Company has satisfied in all material respects all of the conditions set forth in this Section 7.

7.6Good Standing.  The Company is validly existing as a corporation in good standing under the laws of Delaware.

7.7Nasdaq Approval.  The Company shall have filed with Nasdaq a Notification Form: Listing of Additional Shares for the listing of the Shares.

7.8Judgments.  No judgment, writ, order, injunction, award or decree of or by any court, or judge, justice or magistrate, including any bankruptcy court or judge, or any order of or by any governmental authority, shall have been issued, and no action or proceeding shall have been instituted by any governmental authority, enjoining or preventing the consummation of the transactions contemplated hereby.

7.9Stop Orders. No stop order or suspension of trading shall have been imposed by the Nasdaq Global Market, the Commission or any other governmental regulatory body with respect to public trading in the Common Stock (any such order or suspension, a "Suspension").

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SECTION 8.Termination of Obligations to Effect Closing; Effects.

8.1Theobligations of the Company; on the one hand, and the Purchasers, on the other hand, to effect the Closing shall terminate as follows:

(a)upon the mutual written consent of the Company and such Purchasers that agreed to purchase a majority of the Shares to be issued and sold pursuant to this Agreement;

(b)by the Company if any of the conditions set forth in Section 6 shall have become incapable of fulfillment, and shall not have been waived by the Company; or

(c)by a Purchaser (with respect to itself only) if any of the conditions set forth in Section 7 shall have become incapable of fulfillment, and shall not have been waived by the Purchaser;

provided, however, that, except in the case of clauses (b) and (c) above, the party seeking to terminate its obligation to effect the Closing shall not then be in breach of any of its representations, warranties, covenants or agreements contained in this Agreement or the other Transaction Documents if such breach has resulted in the circumstances giving rise to such party's seeking to teminate its obligation to effect the Closing.

8.2If this Agreement is terminated by either the Company or a Purchaser pursuant to the provisions of Section 8.1, this Agreement with respect to the Company and such Purchaser shall forthwith become void and there shall be no further obligations on the part of the Company or such Purchaser or their respective stockholders, directors, officers, employees, agents or representatives, except for rights and obligations that had accrued hereunder prior to such termination and the provisions of Sections 10.6 with respect to the Confidentiality Obligations (as defined below), 10.7, 11, 12 and 13, which shall survive any termination of this Agreement; provided, that nothing in this Section 8 shall be deemed (i) to release any party from any liability for any breach by such party of the terms and provisions of this Agreement or the other Transaction Documents, or (ii) to impair the right of any party to compel specific performance by any other party of its obligations under this Agreement or the other Transaction Documents, in either case, which may have arisen prior to termination of this Agreement.

SECTION 9.Broker's fees.

The Company and each Purchaser (severally and not jointly), hereby represent that there are no brokers or finders entitled to compensation, commissions, placement agent's fees or similar payments in connection with the sale of the Shares, and shall indemnify each other for any such fees for which they are responsible.

SECTION 10.Additional Agreements of the Parties.

10.1Nasdaq Listing. The Company will use commercially reasonable efforts to continue the listing and trading of its Common Stock on the Nasdaq Global Market and, in accordance, therewith, will use commercially reasonable efforts to comply in all respects with the Company's reporting, filing and other obligations under the bylaws or rules of such market or exchange, as applicable.

10.2Access to Information. From the date hereof until the Closing, the Company will make reasonably available to the Purchasers' representatives, consultants and their respective counsels for inspection, such information and documents as the Purchasers reasonably request, and will make available at reasonable times and to a reasonable extent officers and employees of the Company to discuss the business and affairs of the Company.

10.3Termination of Covenants.  The provisions of Sections 10.1 and 10.2 shall terminate and be of no further force and effect on the date on which the Company's obligations under the Registration Rights Agreement to register or maintain the effectiveness of any registration covering the Registrable Shares (as such term is defined in the Registration Rights Agreement) shall terminate.

10.4Form D; Blue Sky Filings. The Company agrees to timely file a Form D with respect to the Shares and to provide a copy thereof, promptly upon request of any Purchaser. The Company shall take such action as the Company shall reasonably determine is necessary in order to obtain an exemption for, or to qualify the Shares for, sale to the Purchaser at the Closing under applicable securities or "Blue Sky" laws of the states of the United States, and shall provide evidence of such actions promptly upon request of any Purchaser.

10.5Integration. The Company shall not, and shall use its commercially reasonable efforts to ensure that no affiliate of the Company shall, sell, offer for sale or solicit offers to buy or otherwise negotiate in respect of any security (as defined in Section 2 of the Securities Act) that will be integrated with the offer or sale of the Shares in a manner that would require the registration under the Securities Act of the sale of the Shares to the Purchasers, or that will be integrated with the offer or sale of the Shares for purposes of the rules and regulations of any trading market such that it would require stockholder approval prior to the closing of such other transaction unless stockholder approval is obtained before the closing of such subsequent transaction.

10.6Short Sales and Confidentiality After the Date Hereof. Each Purchaser covenants that neither it nor any affiliates acting on its behalf or pursuant to any understanding with it will execute any Short Sales during the period from the date hereof until the earlier of such time as (i) after the transactions contemplated by this Agreement are first publicly announced or (ii) this Agreement is terminated in full. Each Purchaser covenants that until such time as the transactions contemplated by this Agreement are publicly disclosed by the Company, such Purchaser will maintain the confidentiality of all disclosures made to it in connection with this transaction (including the existence and terms of this transaction) (such obligations, the "Confidentiality Obligations"). Each Purchaser understands and acknowledges that the Commission currently takes the position that coverage of short sales of shares of the Common Stock "against the box" prior to effectiveness of a resale registration statement with securities included in such registration statement would be a violation of Section 5 of the Securities Act, as set forth in Item 239.10 of the Securities Act Rules Compliance and Disclosure Interpretations compiled by the Office of Chief Counsel, Division of Corporation Finance.

10.7Pledges. The Company acknowledges and agrees that a Purchaser may from time to time pledge pursuant to a bona fide margin agreement with a registered broker-dealer or grant a security interest in some or all of the Shares to a financial institution that is an "accredited investor" as defined in Rule 501(a) under the Securities Act and who agrees to be bound by the provisions of this Agreement and, if required under the terms of such arrangement, such Purchaser may transfer pledged or secured Securities to the pledgees or secured parties. Such a pledge or transfer would not be subject to approval of the Company and no legal opinion of legal counsel of the pledgee, secured party or pledgor shall be required in connection therewith. Further, no notice shall be required of such pledge. At the appropriate Purchaser's expense, the Company will execute and deliver such reasonable documentation as a pledgee or secured party of Shares may reasonably request in connection with a pledge or transfer of the Shares.

10.8Transfer to Affiliates. Notwithstanding any other provision of this Article IV to the contrary, no registration statement or opinion of counsel shall be required for a transfer of the Shares by a Purchaser to an affiliate of such Purchaser so long as the transferee of such Shares is an "accredited investor" and agrees to be subject to the terms hereof to the same extent as the transferor in its capacity as a Purchaser hereunder.

10.9Securities Laws Disclosure; Publicity. By 5:00 P.M., New York City time, on the trading day immediately following the Effective Date, the Company shall issue a press release disclosing the material terms of the transactions contemplated hereby.  On or before 9:00 A.M., New York City time, on the third trading day immediately following the execution of this Agreement, the Company will file a Current Report on Form 8-K (the "8-K") with the Commission describing the material terms of the Transaction Documents (and including as exhibits to the Form 8-K the agreements required to be filed in connection therewith). Notwithstanding the foregoing, the Company shall not publicly disclose the name of any Purchaser, or include the name of any Purchaser in any public filing with the Commission or any regulatory agency or Nasdaq, without the consent of such Purchaser, which consent shall not be unreasonably withheld, conditioned or delayed, except: (a) as required by federal securities law in connection with (i) any registration statement contemplated by the Registration Rights Agreement and (ii) the filing of final Transaction Documents with the Commission; (b) the filing of a Form D with the Commission under the Securities Act and (c) to the extent such disclosure is required by law or Nasdaq regulations, in which case the Company shall provide the Purchaser with prior notice of such disclosure permitted under this clause (c). As of the time of the filing of the 8-K, no Purchaser shall be in possession of any material, non-public information received from the Company, any subsidiary of the Company or any of their respective officers, directors, employees or agents, pursuant to the transactions contemplated by this Agreement that is not disclosed in the 8-K, press release or other disclosure by the Company that complies with the requirements of Regulation FD. 

10.10Furnishing Information.  In order to enable the Purchasers to sell the Shares under Rule 144, until such time as no Purchaser holds Shares, the Company shall use its commercially reasonable efforts to timely file (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to the Exchange Act. During such twelve (12) month period, if the Company is not required to file reports pursuant to the Exchange Act, it will prepare and furnish to the Purchasers and make publicly available in accordance with Rule 144(c) such information as is required for the Purchasers to sell the Shares under Rule 144.

10.11Confirmation of Securities Holdings.  Upon request of a Purchaser, as long as such Purchaser is a record holder of the Shares, the Company will use commercially reasonable efforts to cause the transfer agent of the Shares to provide confirmation of such Purchaser's Common Stock holdings.

SECTION 11.Indemnification.

11.1Indemnification by the Company.  The Company agrees to indemnify and hold harmless each of the Purchasers, the officers, directors, partners, members, and employees of each Purchaser, each Person, if any, who controls any such Purchaser (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers, directors, partners, members and employees of each such controlling Person (each, an "Indemnified Party"), against any losses, claims, damages, liabilities or expenses, joint or several, to which such Indemnified Party may become subject under the Securities Act, the Exchange Act, or any other federal or state statutory law or regulation, or at common law (including in settlement of any litigation, if such settlement is effected with the written consent of the Company), insofar as such losses, claims, damages, liabilities or expenses (or actions in respect thereof as contemplated below) arise out of or are based in whole or in part on the inaccuracy in the representations and warranties of the Company contained in this Agreement or the failure of the Company to perform its obligations hereunder, and will reimburse each Indemnified Party for legal and other expenses reasonably incurred as such expenses are reasonably incurred by such Indemnified Party in connection with investigating, defending, settling, compromising or paying such loss, claim, damage, liability, expense or action; provided, however, that the Company will not be liable in any such case to the extent that any such loss, claim, damage, liability or expense arises out of or is based upon (i) the failure of such Indemnified Party to comply with the covenants and agreements contained in Sections 5 and 10.6 above respecting sale of the Shares, or (ii) the inaccuracy of any representations made by such Indemnified Party herein.

11.2Indemnification by Purchasers.  Each Purchaser shall severally, and not jointly, indemnify and hold harmless the other Purchasers and the Company, its directors, officers, and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act) and the directors, officers, partners, members or employees of such controlling Persons, against any losses, claims, damages, liabilities or expenses to which the Company, each of its directors or each of its controlling Persons may become subject, under the Securities Act, the Exchange Act, or any other federal or state statutory law or regulation, or at common law or otherwise (including in settlement of any litigation, if such settlement is effected with the written consent of such Purchaser) insofar as such losses, claims, damages, liabilities or expenses (or actions in respect thereof as contemplated below) arise out of or are based upon (i) any failure by such Purchaser to comply with the covenants and agreements contained in Sections 5 and 10.6 above respecting the sale of the Shares unless such failure by such Purchaser is directly caused by the Company's failure to provide written notice of a Suspension to such Purchaser or (ii) the inaccuracy of any representation made by such Purchaser herein, in each case to the extent, and will reimburse the Company, each of its directors, and each of its controlling Persons for any legal and other expense reasonably incurred, as such expenses are reasonably incurred by the Company, each of its directors, and each of its controlling Persons in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action.  No Purchaser shall be liable for the indemnification obligations of any other Purchaser.

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SECTION 12.NOTICES.

All notices, requests, consents and other communications hereunder shall be in writing, shall be sent by confirmed electronic mail, or mailed by first-class registered or certified airmail, or nationally recognized overnight express courier, postage prepaid, and shall be deemed given when so sent in the case of electronic mail transmission, or when so received in the case of mail or courier, and addressed as follows:

if to the Company, to:

Obalon Therapeutics, Inc.

5421 Avenida Encinas, Suite F

Carlsbad, California 92008

Attention: Andrew Rasdal, President and Chief Executive Officer

E-Mail:  arasdal@obalon.com

with a copy (which shall not constitute notice) to:

Latham & Watkins LLP

650 Town Center Drive

20th Floor

Costa Mesa, CA 92626

Attention:  Shayne Kennedy

E-Mail:  shayne.kennedy@lw.com

or to such other person at such other place as the Company shall designate to the Purchasers in writing; and if to the Purchasers, at the address as set forth at the end of this Agreement, or at such other address or addresses as may have been furnished to the Company in writing.

SECTION 13.MISCELLANEOUS.

13.1Waivers and Amendments.  Neither this Agreement nor any provision hereof may be changed, waived, discharged, terminated, modified or amended except upon the written consent of the Company and holders of at least a majority of the Shares; provided, that, in the event of any such change, waiver, discharge, termination, modification or amendment, the company shall notify each of the Purchasers of such change, waiver, discharge, termination, modification or amendment at the address as set forth at the end of this Agreement, or at such other address or addresses as may have been furnished to the Company in writing.

13.2Headings.  The headings of the various sections of this Agreement have been inserted for convenience of reference only and shall not be deemed to be part of this Agreement.

13.3Severability.  In case any provision contained in this Agreement should be invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein shall not in any way be affected or impaired thereby.

13.4Replacement of Shares.  If the Shares are certificated and any certificate or instrument evidencing any Shares is mutilated, lost, stolen or destroyed, the Company shall issue or cause to be issued in exchange and substitution for and upon cancellation thereof, or in lieu of and substitution therefor, a new certificate or instrument, but only upon receipt of evidence reasonably satisfactory to the Company and the Company's transfer agent of such loss, theft or destruction and the execution by the holder thereof of a customary lost certificate affidavit of that fact and an agreement to indemnify and hold harmless the Company and the Company's transfer agent for any losses in connection therewith or, if required by the transfer agent, a bond in such form and amount as is required by the transfer agent.  The applicants for a new certificate or instrument under such circumstances shall also pay any reasonable third-party costs associated with the issuance of such replacement Shares.  If a replacement certificate or instrument evidencing any Shares is requested due to a mutilation thereof, the Company may require delivery of such mutilated certificate or instrument as a condition precedent to any issuance of a replacement.

13.5Independent Nature of Purchasers' Obligations and Rights.  The obligations of each Purchaser under this Agreement are several and not joint with the obligations of any other Purchaser, and no Purchaser shall be responsible in any way for the performance of the obligations of any other Purchaser under this Agreement. Nothing contained herein and no action taken by any Purchaser pursuant hereto, shall be deemed to constitute the Purchaser as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchasers are in any way acting in concert or as a group, or are deemed affiliates (as such term is defined under the Exchange Act) with respect to such obligations or the transactions contemplated by this Agreement. Each Purchaser shall be entitled to independently protect and enforce its rights, including without limitation the rights arising out of this Agreement, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose.

13.6Governing Law.  This Agreement and any claim, counterclaim or dispute of any kind or nature whatsoever arising out of or in any way relating to this Agreement ("Claim"), directly or indirectly, shall be governed by, and construed in accordance with, the laws of the State of New York without regard to the conflicts of law principles thereof.  The section headings in this Agreement have been inserted as a matter of convenience of reference and are not a part of this Agreement. Except as set forth below, no Claim may be commenced, prosecuted or continued in any court other than the courts of the State of New York located in the City and County of New York or in the United States District Court for the Southern District of New York, which courts shall have jurisdiction over the adjudication of such matters, and the Company consents to the jurisdiction of such courts and personal service with respect thereto.  The Company hereby consents to personal jurisdiction, service and venue in any court in which any Claim arising out of or in any way relating to this Agreement is brought by any third party against any Purchaser or any Indemnified Party.  Each Purchaser and the Company (on its behalf and, to the extent permitted by applicable law, on behalf of its stockholders and affiliates) waive all right to trial by jury in any action, proceeding or counterclaim (whether based upon contract, tort or otherwise) in any way arising out of or relating to this Agreement.  The Company agrees that a final judgment in any such action, proceeding or counterclaim brought in any such court shall be conclusive and binding upon the Company and may be enforced in any other courts to the jurisdiction of which the Company is or may be subject, by suit upon such judgment.

13.7Counterparts.  This Agreement may be executed in two or more counterparts, each of which shall constitute an original, but all of which, when taken together, shall constitute but one instrument, and shall become effective when one or more counterparts have been signed by each party hereto and delivered to the other parties. In the event that any signature is delivered by facsimile transmission or by e-mail delivery of a ".pdf" format data file, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) the same with the same force and effect as if such facsimile of ".pdf" signature were the original thereof.

13.8Successors and Assigns.  Except as otherwise expressly provided herein, the provisions hereof shall inure to the benefit of, and be binding upon, the successors, assigns, heirs, executors and administrators of the parties hereto.

13.9Entire Agreement.  This Agreement and other documents delivered pursuant hereto, including the exhibit and the Schedule of Exceptions, constitute the full and entire understanding and agreement between the parties with regard to the subjects hereof and thereof.

13.10Payment of Fees and Expenses.  Each of the Company and the Purchasers shall bear its own expenses and legal fees incurred on its behalf with respect to this Agreement and the transactions contemplated hereby.  If any action at law or in equity is necessary to enforce or interpret the terms of this Agreement, the prevailing party shall be entitled to reasonable attorney's fees, costs and necessary disbursements in addition to any other relief to which such party may be entitled.

13.11Survival. The representations, warranties, covenants and agreements made in this Agreement shall survive any investigation made by the Company or the Purchasers and the Closing.

13.12Waiver of Potential Conflicts of Interest.  Each of the Purchasers and the Company acknowledges that Latham & Watkins LLP ("Latham") may have represented and may currently represent certain of the Purchasers.  In the course of such representation, Latham may have come into possession of confidential information relating to such Purchasers.  Each of the Purchasers and the Company acknowledges that Latham is representing only the Company in this transaction.  By executing this Agreement, each of the Purchasers and the Company hereby waives any actual or potential conflict of interest which has or may arise as a result of Latham's representation of such persons and entities, and represents that it has had the opportunity to consult with independent counsel concerning the giving of this waiver.

[Signature pages follow]

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Cusip No. 67424L100

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

OBALON THERAPEUTICS, INC.
By:	/s/ Andrew Rasdal
Name: Title:	Andrew Rasdal President and Chief Executive Officer

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Cusip No. 67424L100

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

PURCHASERS:
DOMAIN PARTNERS VII, L.P.
By:	One Palmer Square Associates VII, LLC
By:	/s/ Lisa A. Kraeutler
Name: Title: Address:	Lisa A. Kraeutler Attorney-in-Fact One Palmer Square, Suite 515 Princeton, NJ 08542 Email: Kraeutler@domainvc.com

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Cusip No. 67424L100

EXHIBIT A

SCHEDULE OF PURCHASERS

Name and Address	Number of Shares	Aggregate Purchase Price of Shares
Domain Partners VII, L.P. c/o One Palmer Square Associates VII, L.L.C. One Palmer Square, Suite 515 Princeton NJ, 08542 Email: kraeutler@domainvc.com	1,648,359	$3,000,013.38
InterWest Partners X, LP 2710 Sand Hill Road, Suite 200 Menlo Park, CA 94025 Email: kwilson@interwest.com	1,098,901	$1,999,999.82
Tamarack Global Healthcare Fund QP, LP 5050 Avenida Encinas, Suite 360 Carlsbad, CA 92008 Email: justin@tamarackcap.com	211,538	$384,999.16
Tamarack Global Healthcare Fund, LP 5050 Avenida Encinas, Suite 360 Carlsbad, CA 92008 Email: justin@tamarackcap.com	887,362	$1,614,998.84
Vintage Capital Management LLC 4707 South Apopka Vineland Road #206 Orlando, FL 32819 Email: bkahn@vintcap.com	1,098,901	$1,999,999.82
Kim Kamdar 906 Muirlands Vista Way La Jolla, CA 92037 Email: kamdar@domainvc.com	54,945	$99,999.90
Sharon Stevenson 1980 Ocean Way Laguna Beach, CA 92651 Email: stevenson@okapivc.com	27,472	$49,999.04
Les Howe 5054 McGill Way San Diego, CA 92130 Email: leshowe@san.rr.com	27,472	$49,999.04
Dittamore Community Property Trust Dated August 31, 2016 PO Box 2050 Glenwood Springs, CO 81602 Email: raydittamore@yahoo.com	27,472	$49,999.04
David Moatazedi 117 Via Eboli Newport Beach, CA 92663 Email: david.moatazedi@gmail.com	5,494	$9,999.08
Rasdal Family Trust DTD 12/10/1996 1028 Devonshire Drive San Diego, CA 92107 Email: arasdal@obalon.com	109,890	$199,999.80
Mark Brister 1055 Valleyside Lane Encinitas, CA 92024 Email: mark.brister@sbcglobal.net	107,142	$194,998.44
Kelly Huang 637 Sweet Pea Place Encinitas, CA 92024 Email: khuang8@yahoo.com	54,945	$99,999.90
William J. Plovanic Revocable Trust Dated 02/29/2008 815 Lake Ave Wilmette, IL 60091 Email: wplovanic@gmail.com	27,472	$49,999.04
Nooshin Hussainy 17188 Province Court San Diego, CA 92127 Email: n.hussainy@hotmail.com	32,967	$59,999.94
Robert H. Mondore, Jr. 3655 Garfield St. Carlsbad, CA 92008 Email: bmondore@gmail.com	13,736	$24,999.52
Neil Drake 12020 Least Tern Ct. San Diego, CA 92129 Email: ndrake@obalon.com	13,736	$24,999.52
Amy VandenBerg 15623 Jube Wright Court San Diego, CA 92127 Email: avandenberg@obalon.com	10,989	$19,999.98
Todd Wood 12 Lapis Ave Dana Point, CA 92629 Email: twood@obalon.com	5,494	$9,999.08
Donald R. Young 10557 Moorland Heights Way San Diego, CA 92121 Email: donyoung27@ATT.net	2,747	$4,999.54
Robin Fisher 148 West 23rd St., Apt. 7A New York, NY 10017 Email: robin.fisher@gmail.com	27,472	$49,999.04
TOTAL	5,494,506	$10,000,000.92

16

Cusip No. 67424L100

Exhibit C

REGISTRATION RIGHTS AGREEMENT

REGISTRATION RIGHTS AGREEMENT

This Registration Rights Agreement (this "Agreement") is made and entered into as of August 22, 2018, by and among Obalon Therapeutics, Inc., a Delaware corporation (the "Company"), and the investors signatory hereto (each a "Purchaser" and collectively, the "Purchasers").

This Agreement is made pursuant to the Securities Purchase Agreement, dated as of August 22, 2018, among the Company and the Purchasers (the "Purchase Agreement").

NOW, THEREFORE, IN CONSIDERATION of the mutual covenants contained in this Agreement, and for other good and valuable consideration the receipt and adequacy of which are hereby acknowledged, the Company and the Purchasers agree as follows:

1.Definitions.  Capitalized terms used and not otherwise defined herein that are defined in the Purchase Agreement shall have the meanings given such terms in the Purchase Agreement.  As used in this Agreement, the following terms shall have the respective meanings set forth in this Section 1:

"Advice" shall have the meaning set forth in Section 7(d).

"Affiliate" means, with respect to any Person, any other Person that, directly or indirectly through one or more intermediaries, Controls, is controlled by or is under common control with such Person, as such terms are used in and construed under Rule 405 under the Securities Act.

"Control" (including the terms "controlling", "controlled by" or "under common control with") means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise.

"Commission" means the United States Securities and Exchange Commission, or any successor entity or entities, including, if applicable, the staff of the Commission.

"Common Stock" means the common stock, par value $0.001 per share, of the Company.

"Closing Date" shall have the meaning set forth in the Purchase Agreement.

"Effectiveness Date" means: (a) with respect to the Initial Registration Statement required to be filed hereunder, the 60^th calendar day following the Closing Date (or the 90^th day following the Closing Date in the event the Initial Registration Statement is reviewed by the Commission), (b) with respect to any additional Registration Statements which may be required pursuant to Section 2, the 60^th calendar day following the date on which the Company first knows, or reasonably should have known, that such additional Registration Statement is required under such Section (or the 90^th day following the Closing Date in the event the Initial Registration Statement is reviewed by the Commission); provided, however, that if the Company is notified by the Commission that the Initial Registration Statement or any additional Registration Statement will not be reviewed or is no longer subject to further review and comments, the Effectiveness Date as to such Registration Statement shall be the fifth (5th) Trading Day following the date on which the Company is so notified if such date precedes the dates otherwise required above. If the Effectiveness Date falls on a Saturday, Sunday or other date that the Commission is closed for business, the Effectiveness Date shall be extended to the next day on which the Commission is open for business.

"Effectiveness Period" shall have the meaning set forth in Section 2(a).

"Exchange Act" means the Securities Exchange Act of 1934, as amended.

"Filing Date" means: (a) with respect to the Initial Registration Statement, the 30^th calendar day following the Closing Date, and (b) with respect to any additional Registration Statements required to register Reduction Securities pursuant to Section 2 hereof, the 15^th calendar day following the date on which the Commission would permit such Registration Statement to be filed. If the Filing Date falls on a Saturday, Sunday or other date that the Commission is closed for business, the Filing Date shall be extended to the next day on which the Commission is open for business.

"Holder" or "Holders" means the holder or holders, as the case may be, from time to time of Registrable Securities.

"Indemnified Party" shall have the meaning set forth in Section 6(c).

"Indemnifying Party" shall have the meaning set forth in Section 6(c).

"Initial Registration Statement" shall mean the initial Registration Statement required to be filed to cover the resale by the Holders of the Registrable Securities pursuant to Section 2(a).

"Investor" shall have the meaning set forth in the Preamble to this Agreement.

"Losses" shall have the meaning set forth in Section 6(a).

"Person" means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

"Proceeding" means an action, claim, suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a deposition), whether commenced or threatened.

"Prospectus" means the prospectus included in a Registration Statement (including, without limitation, a prospectus that includes any information previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A or Rule 430B promulgated by the Commission pursuant to the Securities Act), as amended or supplemented by any prospectus supplement, with respect to the terms of the offering of any portion of the Registrable Securities covered by a Registration Statement, and all other amendments and supplements to the Prospectus, including post-effective amendments, and all material incorporated by reference or deemed to be incorporated by reference in such Prospectus.

"Reduction Securities" shall have the meaning set forth in Section 2(b).

"Registrable Securities" means (i) the Shares issued pursuant to the Purchase Agreement and (ii) any securities issued or issuable upon any stock split, dividend or other distribution, recapitalization or similar event with respect to the Shares; provided, however, that any such Registrable Securities shall cease to be Registrable Securities (and the Company shall not be required to maintain the effectiveness of any, or file another, Registration Statement hereunder with respect thereto) for so long as (a) a Registration Statement with respect to the sale of such Registrable Securities is declared effective by the Commission under the Securities Act and such Registrable Securities have been disposed of by the Holder in accordance with such effective Registration Statement, (b) such Registrable Securities have been previously sold or transferred in accordance with Rule 144, or (c) such securities become eligible for resale without volume or manner-of-sale restrictions and without current public information pursuant to Rule 144 as set forth in a written opinion letter to such effect, addressed, delivered and acceptable to the Company's transfer agent and the affected Holders (assuming that such securities and any securities issuable upon exercise, conversion or exchange of which, or as a dividend upon which, such securities were issued or are issuable, were at no time held by any Affiliate of the Company), as reasonably determined by the Company, upon the advice of counsel to the Company.

"Registration Statement" means each of the following: (i) an initial registration statement which is required to register the resale of the Registrable Securities, and (ii) each additional registration statement, if any, contemplated by Section 2, and including, in each case, the Prospectus, amendments and supplements to each such registration statement or Prospectus, including pre- and post-effective amendments, all exhibits thereto, and all material incorporated by reference or deemed to be incorporated by reference in such registration statement.

"Rule 144" means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule.

"Rule 415" means Rule 415 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule.

"Rule 424" means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule.

"SEC Guidance" means (i) any publicly-available written or oral guidance, comments, requirements or requests of the Commission and (ii) the Securities Act.

"Securities Act" means the Securities Act of 1933, as amended.

"Shares" shall have the meaning set forth in the Purchase Agreement.

"Trading Day" means any day on which the Common Stock is traded on the Nasdaq Global Market, or, if the Nasdaq Global Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded.

"Transaction Documents" shall have the meaning set forth in the Purchase Agreement.

"Underwritten Offering" means a registration in which Registrable Securities are sold to an underwriter for reoffering to the public.

2.Registration. 

(a)On or prior to each Filing Date, the Company shall prepare and file with the Commission a Registration Statement covering the resale of all of the Registrable Securities that are not then registered on an existing and effective Registration Statement for an offering to be made on a continuous basis pursuant to Rule 415.  The Registration Statement filed hereunder shall be on Form S-3 (except if the Company is not then eligible to register for resale the Registrable Securities on Form S-3, in which case such registration shall be on another appropriate form in accordance herewith) and shall contain (except if otherwise required pursuant to written comments received from the Commission upon a review of such Registration Statement) the "Plan of Distribution" in substantially the form attached hereto as Annex A (which may be modified to respond to comments, if any, provided by the Commission).  The Company shall use its commercially reasonable efforts to cause a Registration Statement filed under this Agreement to be declared effective under the Securities Act promptly but, in any event, no later than the Effectiveness Date for such Registration Statement, and shall, subject to Section 7(d) hereof, use its commercially reasonable efforts to keep the Registration Statement continuously effective under the Securities Act until the earlier of (i) the date that is two years after the Closing Date and (ii) the date on which all securities under such Registration Statement have ceased to be Registrable Securities (the "Effectiveness Period").  It is agreed and understood that the Company shall, from time to time, be obligated to file one or more additional Registration Statements to cover any Registrable Securities which are not registered for resale pursuant to a pre-existing Registration Statement.

(b)Notwithstanding anything contained herein to the contrary, in the event that the Commission limits the amount of Registrable Securities that may be included and sold by Holders in any Registration Statement, including the Initial Registration Statement, pursuant to Rule 415 or any other basis, the Company may, after giving notice to the Holders, reduce the number of Registrable Securities included in such Registration Statement on behalf of the Holders in whole or in part (in case of an exclusion as to a portion of such Registrable Securities, such portion shall be allocated pro rata among such Holders in proportion to the respective numbers of Registrable Securities represented by Shares requested to be registered by each such Holder over the total amount of Registrable Securities represented by Shares) (such Registrable Securities, the "Reduction Securities"); provided, however, that prior to taking any such action, the Company shall be obligated to use its commercially reasonable efforts to advocate with the Commission for the registration of all of the Registrable Securities in accordance with SEC Guidance, including without limitation, the Manual of Publicly Available Telephone Interpretations D.29.  In such event the Company shall give the Holders prompt notice of the number of such Reduction Securities to be excluded and the Company will not be liable for any damages under this Agreement in connection with the exclusion of such Reduction Securities.  The Company shall use its commercially reasonable efforts at the first opportunity that is permitted by the Commission to register for resale the Reduction Securities.  Such new Registration Statement shall be on Form S-3 (except if the Company is not then eligible to register for resale the Reduction Securities on Form S-3, in which case such registration shall be on another appropriate form for such purpose) and shall contain (except if otherwise required pursuant to written comments received from the Commission upon a review of such Registration Statement) the "Plan of Distribution" in substantially the form attached hereto as Annex A (which may be modified to respond to comments, if any, provided by the Commission).  The Company shall use its commercially reasonable efforts to cause each such Registration Statement to be declared effective under the Securities Act as soon as possible but, in any event, no later than the Effectiveness Date, and shall use its commercially reasonable efforts to keep such Registration Statement continuously effective under the Securities Act during the entire Effectiveness Period, subject to Section 7(d) hereof.

(c)If: (i) the Initial Registration Statement is not filed with the Commission on or prior to the Filing Date, (ii) the Initial Registration Statement or any additional Registration Statement is not declared effective by the Commission (or otherwise does not become effective) on or prior to the Effectiveness Date or (iii) after the date it is declared effective by the Commission and except as provided in Section 3(i), (A) such Registration Statement ceases for any reason (including without limitation by reason of a stop order, or the Company's failure to update the Registration Statement), to remain continuously effective as to all Registrable Securities included in such Registration Statement or (B) the Holders are not permitted to utilize the Prospectus therein to resell such Registrable Securities for any reason (other than due to a change in the "Plan of Distribution" or the inaccuracy of any information regarding the Holders) in each case for more than an aggregate of fifteen (15) consecutive Trading Days or forty (40) Trading Days in the aggregate (which need not be consecutive) in any given 360-day period (other than as a result of a breach of this Agreement by such Holder), or (iv) the Company fails to satisfy the current public information requirement pursuant to Rule 144(c)(1) as a result of which the Holders who are not affiliates are unable to sell Registrable Securities without restriction under Rule 144 (or any successor thereto), (any such failure or breach in clauses (i) through (iv) above being referred to as an "Event," and, for purposes of clauses (i), (ii) or (iv), the date on which such Event occurs, or for purposes of clause (iii), the date on which such fifteen (15) or forty (40) Trading Day period is exceeded, being referred to as an "Event Date"), then in addition to any other rights the Holders may have hereunder or under applicable law, (x) within five business days after an Event Date relating to a failure in clause (i) only, the Company shall pay to each Holder an amount in cash, as liquidated damages and not as a penalty ("Liquidated Damages"), equal to one percent (1.0%) of the aggregate purchase price paid by such Holder pursuant to the Purchase Agreement for any unregistered Registrable Securities then held by such Holder on such Event Date; and (y) on each monthly anniversary following any Event Date (if the applicable Event shall not have been cured by such date) until the earlier of (1) the applicable Event is cured or (2) the Registrable Securities are eligible for resale pursuant to Rule 144 without manner of sale or volume restrictions or the current public information requirement, the Company shall pay to each Holder an amount in cash, Liquidated Damages, equal to one percent (1.0%) of the aggregate purchase price paid by such Holder pursuant to the Purchase Agreement for any unregistered Registrable Securities then held by such Holder.  The parties agree that (1) notwithstanding anything to the contrary herein or in the Purchase Agreement, no Liquidated Damages shall be payable with respect to any period after the expiration of the Effectiveness Period (it being understood that this sentence shall not relieve the Company of any Liquidated Damages accruing prior to the Effectiveness Deadline) and in no event shall, the aggregate amount of Liquidated Damages payable to a Holder exceed, in the aggregate, five percent (5.0%) of the aggregate purchase price paid by such Holder pursuant to the Purchase Agreement) and (2) in no event shall the Company be liable in any thirty (30) day period for Liquidated Damages under this Agreement in excess of one percent (1.0%) of the aggregate purchase price paid by the Holders pursuant to the Purchase Agreement.  The Liquidated Damages pursuant to the terms hereof shall apply on a daily pro-rata basis for any portion of a month prior to the cure of an Event, except in the case of the first Event Date.  The Company shall not be liable for Liquidated Damages under this Agreement as to any Registrable Securities which are not permitted by the Commission to be included in a Registration Statement due solely to SEC Guidance from the time that it is determined that such Registrable Securities are not permitted to be registered until such time as the provisions of this Agreement as to the additional Registration Statement required to be filed hereunder with respect to such Registrable Securities are triggered, in which case the provisions of this Section 2(c) shall once again apply, if applicable.  In such case, the Liquidated Damages shall be calculated to only apply to the percentage of Registrable Securities which are permitted to be included in such Registration Statement. The Effectiveness Deadline for a Registration Statement shall be extended without default or Liquidated Damages hereunder in the event that the Company's failure to obtain the effectiveness of the Registration Statement on a timely basis results from the failure of a Purchaser to timely provide the Company with information requested by the Company and necessary to complete the Registration Statement in accordance with the requirements of the Securities Act (in which case the Effectiveness Deadline would be extended with respect to Registrable Securities held by such Purchaser).

17

Cusip No. 67424L100

3.Registration Procedures.

In connection with the Company's registration obligations hereunder, the Company shall:

(a)Not less than three Trading Days prior to the filing of a Registration Statement or any related Prospectus or any amendment or supplement thereto, furnish to the Holders copies of all such documents proposed to be filed (other than those incorporated by reference).  Notwithstanding the foregoing, the Company shall not be required to furnish to the Holders any prospectus supplement being prepared and filed solely to name new or additional selling stockholders unless such Holders or their controlling Person or custodian are named in such prospectus supplement.  In addition, in the event that any Registration Statement is on Form S-1 (or other form which does not permit incorporation by reference), the Company shall not be required to furnish to the Holders any prospectus supplement containing information included in a report or proxy statement filed under the Exchange Act that would be incorporated by reference in such Registration Statement if such Registration Statement were on Form S-3 (or other form which permits incorporation by reference).  The Company shall duly incorporate any comments made by Holders acting reasonably and received by the Company not later than two Trading Days prior to the filing of the Registration Statement, but shall not be required to accept any such comments to which it reasonably objects.

(b)(i) Prepare and file with the Commission such amendments, including post-effective amendments, to each Registration Statement and the Prospectus used in connection therewith as may be necessary to keep such Registration Statement continuously effective as to the applicable Registrable Securities for its Effectiveness Period and prepare and file with the Commission such additional Registration Statements in order to register for resale under the Securities Act all of the Registrable Securities; (ii) cause the related Prospectus to be amended or supplemented by any required Prospectus supplement, and as so supplemented or amended to be filed pursuant to Rule 424; (iii) respond as promptly as reasonably possible to any comments received from the Commission with respect to each Registration Statement or any amendment thereto and, as promptly as reasonably possible provide the Holders true and complete copies of all correspondence from and to the Commission relating to such Registration Statement that pertains to the Holders as selling stockholders but not any comments that would result in the disclosure to the Holders of material and non-public information concerning the Company; and (iv) comply in all material respects with the provisions of the Securities Act and the Exchange Act with respect to the Registration Statements and the disposition of all Registrable Securities covered by each Registration Statement.

(c)Notify the Holders as promptly as reasonably possible (and, in the case of (i)(A) below, not less than three Trading Days prior to such filing) and (if requested by any such Person) confirm such notice in writing no later than one Trading Day following the day: (i)(A) when a Prospectus or any prospectus supplement (but only to the extent notice is required under Section 3(a) above) or post-effective amendment to a Registration Statement is proposed to be filed; (B) when the Commission notifies the Company whether there will be a "review" of such Registration Statement and whenever the Commission comments in writing on such Registration Statement (in which case the Company shall provide true and complete copies thereof and all written responses thereto to each of the Holders that pertain to the Holders as a selling stockholder or to the Plan of Distribution, but not information which the Company believes would constitute material and non-public information); and (C) with respect to each Registration Statement or any post-effective amendment, when the same has been declared effective; (ii) of any request by the Commission or any other Federal or state governmental authority for amendments or supplements to a Registration Statement or Prospectus or for additional information that pertains to the Holders as selling stockholders or the Plan of Distribution; (iii) of the issuance by the Commission or any other federal or state governmental authority of any stop order suspending the effectiveness of a Registration Statement covering any or all of the Registrable Securities or the initiation of any Proceedings for that purpose; (iv) of the receipt by the Company of any notification with respect to the suspension of the qualification or exemption from qualification of any of the Registrable Securities for sale in any jurisdiction, or the initiation or threatening of any Proceeding for such purpose; (v) of the occurrence of any event or passage of time that makes the financial statements included or incorporated by reference in a Registration Statement ineligible for inclusion or incorporation by reference therein or any statement made in such Registration Statement or Prospectus or any document incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires any revisions to such Registration Statement, Prospectus or other documents so that, in the case of such Registration Statement or the Prospectus, as the case may be, it will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading; and (vi) of the occurrence or existence of any pending corporate development with respect to the Company that the Company believes may be material and that, in the determination of the Company, makes it not in the best interest of the Company to allow continued availability of a Registration Statement or Prospectus; provided, that any and all of such information shall remain confidential to each Holder until such information otherwise becomes public, unless disclosure by a Holder is required by law; provided, further, that notwithstanding each Holder's agreement to keep such information confidential, each such Holder makes no acknowledgement that any such information is material, non-public information.

(d)Use its reasonable best efforts to avoid the issuance of, or, if issued, obtain the withdrawal of (i) any order suspending the effectiveness of a Registration Statement, or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction, at the earliest practicable moment.

(e)If requested by a Holder, furnish to each Holder, without charge, at least one conformed copy of each Registration Statement and each amendment thereto and all exhibits to the extent reasonably requested by such Person (including those previously furnished or incorporated by reference) promptly after the filing of such documents with the Commission; provided, that the Company shall have no obligation to provide any document pursuant to this clause that is available on the EDGAR system.

(f)If requested by a Holder, promptly deliver to each Holder, without charge, as many copies of each Prospectus or Prospectuses (including each form of prospectus) and each amendment or supplement thereto as such Persons may reasonably request.  Subject to Section 7(d) hereof, the Company hereby consents to the use of such Prospectus and each amendment or supplement thereto by each of the selling Holders in connection with the offering and sale of the Registrable Securities covered by such Prospectus and any amendment or supplement thereto.

(g)Prior to any public offering of Registrable Securities, use its commercially reasonable efforts to register or qualify or cooperate with the selling Holders in connection with the registration or qualification (or exemption from such registration or qualification) of such Registrable Securities for offer and sale under the securities or Blue Sky laws of those jurisdictions within the United States as any Holder reasonably requests in writing to keep each such registration or qualification (or exemption therefrom) effective during the Effectiveness Period and to do any and all other acts or things necessary or advisable to enable the disposition in such jurisdictions of the Registrable Securities covered by the Registration Statements; provided, that the Company shall not be required to qualify generally to do business in any jurisdiction where it is not then so qualified or subject the Company to any material tax in any such jurisdiction where it is not then so subject.

(h)Cooperate with the Holders to facilitate the timely preparation and delivery of certificates or book-entry statements representing Registrable Securities to be delivered to a transferee pursuant to the Registration Statements, which certificates or book-entry statements shall be free, to the extent permitted by the Purchase Agreement, of all restrictive legends, and to enable such Registrable Securities to be in such denominations and registered in such names as any such Holders may request.

(i)Upon the occurrence of any event contemplated by Section 3(c)(v), as promptly as reasonably possible, prepare a supplement or amendment, including a post-effective amendment, to the affected Registration Statements or a supplement to the related Prospectus or any document incorporated or deemed to be incorporated therein by reference, and file any other required document so that, as thereafter delivered, no Registration Statement nor any Prospectus will contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading.

(j)The Company may require each selling Holder to furnish to the Company a certified statement as to the number of shares of Common Stock beneficially owned by such Holder and any Affiliate thereof, the natural persons thereof that have voting and dispositive control over the shares and any other information with respect to such Holder as the Commission requests.

4.Holder's Obligations.  Each Holder agrees, by acquisition of the Registrable Securities, that no Holder shall be entitled to sell any of such Registrable Securities pursuant to a Registration Statement or to receive a Prospectus relating thereto, unless such Holder has furnished the Company with all material information required to be set forth in the Purchaser Questionnaire and Selling Stockholder Questionnaire pursuant to the Purchase Agreement.  Any sale of any Registrable Securities by any Holder pursuant to a Prospectus delivered by such Holder shall constitute a representation and warranty by such Holder that the information regarding such Holder is as set forth in such Prospectus, and that such Prospectus does not as of the time of such sale contain any untrue statement of a material fact regarding such Holder or omit to state any material fact regarding such Holder necessary to make the statements in such Prospectus, in the light of the circumstances under which they were made, not misleading, solely to the extent such facts are based upon information regarding such Holder furnished in writing to the Company by such Holder for use in such Prospectus.

5.Registration Expenses.  All fees and expenses incident to the Company's performance of or compliance with its obligations under this Agreement (excluding any underwriting discounts and selling commissions) shall be borne by the Company whether or not any Registrable Securities are sold pursuant to a Registration Statement.  The fees and expenses referred to in the foregoing sentence shall include, without limitation, (i) all registration expenses of the Company and the Holders and all filing fees (including, without limitation, fees and expenses (A) with respect to filings required to be made with the Principal Market on which the Common Stock is then listed for trading, and (B) in compliance with applicable state securities or Blue Sky laws (including, without limitation, fees and disbursements of counsel for the Company in connection with Blue Sky qualifications or exemptions of the Registrable Securities and determinations of the eligibility of the Registrable Securities for investment under the laws of such jurisdictions as requested by the Holders)), (ii) printing expenses (including, without limitation, expenses of printing certificates for Registrable Securities and of printing prospectuses if the printing of prospectuses is reasonably requested by the holders of a majority of the Registrable Securities included in the Registration Statement), (iii) messenger, telephone and delivery expenses, (iv) fees and disbursements of counsel for the Company, including with respect to the issuance of opinions required for the removal of securities legends in the manner described in the Transaction Documents, (v) reasonable fees and disbursements of one counsel to the Holders, in an amount not to exceed $35,000, (vi) Securities Act liability insurance, if the Company so desires such insurance, and (vii) reasonable fees and expenses of all other Persons retained by the Company in connection with the consummation of the transactions contemplated by this Agreement.  In addition, the Company shall be responsible for all of its internal expenses incurred in connection with the consummation of the transactions contemplated by this Agreement (including, without limitation, all salaries and expenses of its officers and employees performing legal or accounting duties), the expense of any annual audit and the fees and expenses incurred in connection with the listing of the Registrable Securities on any securities exchange as required hereunder.  In no event shall the Company be responsible for any broker or similar commissions of any Holder or, except to the extent provided for in the Transaction Documents, any legal fees or other costs of the Holders. To the extent that underwriting discounts and selling commissions are incurred in connection with the sale of Registrable Securities in an Underwritten Offering hereunder, such underwriting discounts and selling commissions shall be borne by the Holders of Registrable Securities sold pursuant to such Underwritten Offering, pro rata on the basis of the number of Registrable Securities sold on their behalf in such Underwritten Offering.

6.Indemnification.

(a)Indemnification by the Company.  The Company shall, notwithstanding any termination of this Agreement, indemnify and hold harmless each Holder, the officers, directors, agents, partners, members, stockholders and employees of each Holder, each Person who controls any such Holder (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers, directors, agents, partners, members, stockholders and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including, without limitation, reasonable costs of preparation and reasonable attorneys' fees) and expenses (collectively, "Losses"), as incurred, arising out of or relating to any untrue or alleged untrue statement of a material fact contained in any Registration Statement, any Prospectus or any form of prospectus or in any amendment or supplement thereto (it being understood that the Holder has approved Annex A hereto for this purpose), or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading, except to the extent, but only to the extent, that (1) such untrue statements, alleged untrue statements, omissions or alleged omissions are based solely upon information regarding such Holder furnished in writing to the Company by such Holder expressly for use therein, or to the extent that such information relates to such Holder or such Holder's proposed method of distribution of Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in the Registration Statement, such Prospectus or such form of Prospectus or in any amendment or supplement thereto (it being understood that the Holder has approved Annex A hereto for this purpose) or (2) in the case of an occurrence of an event of the type specified in Section 3(c)(ii)-(v), the use by such Holder of an outdated or defective Prospectus after the Company has validly notified such Holder in writing (in accordance with Section 7(h) below) that the Prospectus is outdated or defective and prior to the receipt by such Holder of an Advice (as defined below) or an amended or supplemented Prospectus, but only if and to the extent that following the receipt of the Advice or the amended or supplemented Prospectus the misstatement or omission giving rise to such Loss would have been corrected.  The Company shall notify the Holders promptly of the institution, threat or assertion of any Proceeding of which the Company is aware in connection with the transactions contemplated by this Agreement.

(b)Indemnification by Holders.  Each Holder shall, notwithstanding any termination of this Agreement, severally and not jointly, indemnify and hold harmless the Company, its directors, officers, agents and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), and the directors, officers, agents, partners, members, stockholders or employees of such controlling Persons, to the fullest extent permitted by applicable law, from and against all Losses, as incurred, arising solely out of or based solely upon: (x) for so long as the Company is not eligible to use Form S-3 under the Securities Act for a primary offering in reliance on General Instruction I.B.1 of such form and the prospectus delivery requirements of the Securities Act apply to sales by such Holder, such Holder's failure to comply with the prospectus delivery requirements of the Securities Act or (y) any untrue statement of a material fact contained in any Registration Statement, any Prospectus, or any form of prospectus, or in any amendment or supplement thereto, or arising solely out of or based solely upon any omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any Prospectus, or any form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading to the extent, but only to the extent that, (1) such untrue statements or omissions are based solely upon information regarding such Holder furnished in writing to the Company by such Holder expressly for use therein, or to the extent that such information relates to such Holder or such Holder's proposed method of distribution of Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in the Registration Statement, such Prospectus or such form of Prospectus or in any amendment or supplement thereto (it being understood that the Holder has approved Annex A hereto for this purpose) or (2) in the case of an occurrence of an event of the type specified in Section 3(c)(ii)-(v), the use by such Holder of an outdated or defective Prospectus after the Company has validly notified such Holder in writing (in accordance with Section 7(h) below) that the Prospectus is outdated or defective and prior to the receipt by such Holder of an Advice or an amended or supplemented Prospectus, but only if and to the extent that following the receipt of the Advice or the amended or supplemented Prospectus the misstatement or omission giving rise to such Loss would have been corrected.  In no event shall the liability of any selling Holder hereunder be greater in amount than the dollar amount of the net proceeds received by such Holder upon the sale of the Registrable Securities giving rise to such indemnification obligation.

(c)Conduct of Indemnification Proceedings.  If any Proceeding shall be brought or asserted against any Person entitled to indemnity hereunder (an "Indemnified Party"), such Indemnified Party shall promptly notify the Person from whom indemnity is sought (the "Indemnifying Party") in writing, and the Indemnifying Party shall assume the defense thereof, including the employment of counsel reasonably satisfactory to the Indemnified Party and the payment of all fees and expenses incurred in connection with defense thereof; provided, that the failure of any Indemnified Party to give such notice shall not relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except (and only) to the extent that it shall be finally determined by a court of competent jurisdiction (which determination is not subject to appeal or further review) that such failure shall have proximately and materially adversely prejudiced the Indemnifying Party.

An Indemnified Party shall have the right to employ separate counsel in any such Proceeding and to participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such Indemnified Party or Parties unless:  (1) the Indemnifying Party has agreed in writing to pay such fees and expenses; (2) the Indemnifying Party shall have failed promptly to assume the defense of such Proceeding and to employ counsel reasonably satisfactory to such Indemnified Party in any such Proceeding; or (3) the named parties to any such Proceeding (including any impleaded parties) include both such Indemnified Party and the Indemnifying Party, and such Indemnified Party shall have been advised by counsel that a conflict of interest is likely to exist if the same counsel were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party notifies the Indemnifying Party in writing that it elects to employ separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall not have the right to assume the defense thereof and such counsel shall be at the expense of the Indemnifying Party); provided, that the Indemnifying Party shall not be liable for the fees and expenses of more than one separate firm of attorneys at any time for all Indemnified Parties pursuant to this Section 6(c).  The Indemnifying Party shall not be liable for any settlement of any such Proceeding effected without its written consent, which consent shall not be unreasonably withheld, delayed or conditioned.  No Indemnifying Party shall, without the prior written consent of the Indemnified Party, effect any settlement of any pending Proceeding in respect of which any Indemnified Party is a party, unless such settlement includes an unconditional release of such Indemnified Party from all liability on claims that are the subject matter of such Proceeding. Each Indemnified Party shall furnish such information regarding itself or the claim in question as an Indemnifying Party may reasonably request in writing and as shall be reasonably required in connection with defense of such claim and litigation resulting therefrom.

All fees and expenses of the Indemnified Party (including reasonable fees and expenses to the extent incurred in connection with investigating or preparing to defend such Proceeding in a manner not inconsistent with this Section) shall be paid to the Indemnified Party, as incurred, within ten Trading Days of written notice thereof to the Indemnifying Party (regardless of whether it is ultimately determined that an Indemnified Party is not entitled to indemnification hereunder; provided, that the Indemnifying Party may require such Indemnified Party to undertake to reimburse all such fees and expenses to the extent it is finally judicially determined that such Indemnified Party is not entitled to indemnification hereunder). The failure to deliver written notice to the Indemnifying Party within a reasonable time of the commencement of any such action shall not relieve such Indemnifying Party of any liability to the Indemnified Party under this Section, except to the extent that the Indemnifying Party is materially and adversely prejudiced in its ability to defend such action.

(d)Contribution.  If a claim for indemnification under Section 6(a) or 6(b) is unavailable to an Indemnified Party (by reason of public policy or otherwise), then each Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute to the amount paid or payable by such Indemnified Party as a result of such Losses, in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party and Indemnified Party in connection with the actions, statements or omissions that resulted in such Losses as well as any other relevant equitable considerations.  The relative fault of such Indemnifying Party and Indemnified Party shall be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission of a material fact, has been taken or made by, or relates to information supplied by, such Indemnifying Party or Indemnified Party, and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such action, statement or omission.  The amount paid or payable by a party as a result of any Losses shall be deemed to include, subject to the limitations set forth in Section 6(c), any reasonable attorneys' or other reasonable fees or expenses incurred by such party in connection with any Proceeding to the extent such party would have been indemnified for such fees or expenses if the indemnification provided for in this Section was available to such party in accordance with its terms.

The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 6(d) were determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to in the immediately preceding paragraph.  Notwithstanding the provisions of this Section 6(d), no Holder shall be required to contribute, in the aggregate, any amount in excess of the amount by which the proceeds actually received by such Holder from the sale of the Registrable Securities subject to the Proceeding exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission.  No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.

The indemnity and contribution agreements contained in this Section 6 are in addition to any liability that the Indemnifying Parties may have to the Indemnified Parties and are not in diminution or limitation of the indemnification provisions under the Purchase Agreement.

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Cusip No. 67424L100

7.Miscellaneous.

(a)Remedies.  The parties agree that, in the event of a breach of this Agreement, the parties will, in addition to being entitled to exercise all rights granted by law and under this Agreement, including recovery of damages, be entitled to specific performance of its rights under this Agreement.  The parties agree that monetary damages may not provide adequate compensation for any losses incurred by reason of a breach of the provisions of this Agreement and hereby further agree that, in the event of any action for specific performance in respect of such breach, it shall waive the defense that a remedy at law would be adequate.

(b)Compliance.  Each Holder covenants and agrees that it will comply with the prospectus delivery requirements of the Securities Act as applicable to it in connection with sales of Registrable Securities pursuant to the Registration Statement.

(c)Subsequent Registration Rights.  Until the Initial Registration Statement required hereunder is declared effective by the Commission, the Company shall not enter into any agreement granting any registration rights with respect to any of its securities to any Person without the written consent of Holders representing no less than a majority of the then outstanding Registrable Securities; provided, that this Section 7(c) shall not prohibit the Company from fulfilling its obligations under any other registration rights agreements existing as of the date hereof.

(d)Discontinued Disposition.  Each Holder agrees by its acquisition of such Registrable Securities that, upon receipt of a notice from the Company of the occurrence of any event of the kind described in Section 3(c), such Holder will forthwith discontinue disposition of such Registrable Securities under the Registration Statement until such Holder's receipt of the copies of the supplemented Prospectus and/or amended Registration Statement or until it is advised in writing (the "Advice") by the Company that the use of the applicable Prospectus may be resumed, and, in either case, has received copies of any additional or supplemental filings that are incorporated or deemed to be incorporated by reference in such Prospectus or Registration Statement.  The Company may provide appropriate stop orders to enforce the provisions of this paragraph.

(e)Furnishing of Information.  Each Holder shall furnish in writing to the Company such information regarding itself, the Registrable Securities held by it and the intended method of disposition of the Registrable Securities held by it, as shall be reasonably requested by the Company to effect the registration of such Registrable Securities and shall execute such customary and appropriate documents in connection with such registration as the Company may reasonably request.

(f)Amendments and Waivers.  No provision of this Agreement may be waived or amended with respect to the Company and another party hereto except with the written consent of the Company and such other party.  The Company shall provide prior notice to all Holders of any proposed waiver or amendment.  No waiver of any default with respect to any provision, condition or requirement of this Agreement shall be deemed to be a continuing waiver in the future or a waiver of any subsequent default or a waiver of any other provision, condition or requirement hereof, nor shall any delay or omission of either party to exercise any right hereunder in any manner impair the exercise of any such right.

(g)Termination of Registration Rights.  For the avoidance of doubt, it is expressly agreed and understood that (i) in the event that there are no Registrable Securities outstanding as of a Filing Date, then the Company shall have no obligation to file, cause to be declared effective or to keep effective any Registration Statement hereunder (including any Registration Statement previously filed pursuant to this Agreement) and (ii) all registration rights granted to the Holders hereunder (including the rights set forth in Sections 7(c)), shall terminate in their entirety effective on the first date on which there shall cease to be any Registrable Securities outstanding.  If not previously terminated pursuant to the foregoing sentence, it is expressly agreed and understood that all registration rights granted to the Holder pursuant to this Agreement shall terminate as to the Holder on the earlier of (a) such time following the date that is five (5) years following the date of this Agreement that the Holders own in the aggregate less than 25% of the number of Registrable Securities that the Holders owned in the aggregate as of the date hereof (as adjusted for stock splits, combinations, dividends, recapitalizations and the like) and (b) the date that is ten (10) years following the date of this Agreement.

(h)Notices.  All notices, requests, consents and other communications hereunder shall be in writing, shall be sent by confirmed electronic mail, or mailed by first-class registered or certified airmail, or nationally recognized overnight express courier, postage prepaid, and shall be deemed given when so sent in the case of electronic mail transmission, or when so received in the case of mail or courier, and addressed as follows:

if to the Company, to:

Obalon Therapeutics, Inc.

5421 Avenida Encinas, Suite F

Carlsbad, California 92008

Attention: Andrew Rasdal, President and Chief Executive Officer

E-Mail:  arasdal@obalon.com

with a copy (which shall not constitute notice) to:

Latham & Watkins LLP

650 Town Center Drive

20th Floor

Costa Mesa, CA 92626

Attention:  Shayne Kennedy

E-Mail:  shayne.kennedy@lw.com

If to a Purchaser:	To the address set forth under such Purchaser's name on the signature pages hereto
If to any other Person who is then the registered Holder:	To the address of such Holder as it appears in the stock transfer books of the Company

or such other address as may be designated in writing hereafter, in the same manner, by such Person.

(i)Successors and Assigns.  This Agreement shall inure to the benefit of and be binding upon the successors and permitted assigns of each of the parties and shall inure to the benefit of each Holder.

(j)Execution and Counterparts.  This Agreement may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original and, all of which taken together shall constitute one and the same Agreement and shall become effective when counterparts have been signed by each party and delivered to the other parties, it being understood that all parties need not sign the same counterpart.  In the event that any signature is delivered by facsimile transmission or by e-mail delivery of a ".pdf" format data file, such signature shall create a valid binding obligation of the party executing (or on whose behalf such signature is executed) the same with the same force and effect as if such facsimile or ".pdf" signature were the original thereof.

(k)Governing Law.  This Agreement and any claim, counterclaim or dispute of any kind or nature whatsoever arising out of or in any way relating to this Agreement ("Claim"), directly or indirectly, shall be governed by, and construed in accordance with, the laws of the State of New York without regard to the conflicts of law principles thereof.  The section headings in this Agreement have been inserted as a matter of convenience of reference and are not a part of this Agreement. Except as set forth below, no Claim may be commenced, prosecuted or continued in any court other than the courts of the State of New York located in the City and County of New York or in the United States District Court for the Southern District of New York, which courts shall have jurisdiction over the adjudication of such matters, and the Company consents to the jurisdiction of such courts and personal service with respect thereto.  The Company hereby consents to personal jurisdiction, service and venue in any court in which any Claim arising out of or in any way relating to this Agreement is brought by any third party against any Purchaser or any Indemnified Party.  Each Purchaser and the Company (on its behalf and, to the extent permitted by applicable law, on behalf of its stockholders and affiliates) waive all right to trial by jury in any action, proceeding or counterclaim (whether based upon contract, tort or otherwise) in any way arising out of or relating to this Agreement.  The Company agrees that a final judgment in any such action, proceeding or counterclaim brought in any such court shall be conclusive and binding upon the Company and may be enforced in any other courts to the jurisdiction of which the Company is or may be subject, by suit upon such judgment.

(l)Cumulative Remedies.  The remedies provided herein are cumulative and not exclusive of any remedies provided by law.

(m)Severability.  If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated, and the parties hereto shall use their reasonable best efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated by such term, provision, covenant or restriction.  It is hereby stipulated and declared to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be hereafter declared invalid, illegal, void or unenforceable.

(n)Use of Terms.  The parties agree and acknowledge that when, in this Agreement, the Company is required to use its reasonable best efforts to perform any covenant under this Agreement, such requirement shall not obligate the Company, in the reasonable judgment of the disinterested members of its Board of Directors, to perform any act that will have a material adverse effect on the Company.

(o)Headings.  The headings in this Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof.

(p)Independent Nature of Purchasers' Obligations and Rights.  The obligations of each Purchaser hereunder is several and not joint with the obligations of any other Purchaser hereunder, and no Purchaser shall be responsible in any way for the performance of the obligations of any other Purchaser hereunder.  The decision by each Purchaser to purchase Shares pursuant to the Transaction Documents has been made independently of any other Purchaser.  Nothing contained herein or in any other agreement or document delivered at any closing, and no action taken by any Purchaser pursuant hereto or thereto, shall be deemed to constitute the Purchaser as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchaser are in any way acting in concert with respect to such obligations or the transactions contemplated by this Agreement.  Each Purchaser acknowledges that no other Purchaser has acted as agent for such Purchaser in connection with making its investment hereunder and that no Investor will be acting as agent of such Purchaser in connection with monitoring its investment in the Shares or enforcing its rights under the Transaction Documents.  Each Purchaser shall be entitled to protect and enforce its rights, including without limitation the rights arising out of this Agreement, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose.

(q)Entire Agreement. This Agreement and the Purchase Agreement contain the entire agreement among the parties with respect to the subject matter hereof and thereof and supersede all prior and contemporaneous arrangements or understandings, whether written or oral, with respect hereto and thereto.

 [Signature pages follow]

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Cusip No. 67424L100

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

OBALON THERAPEUTICS, INC.
By:	/s/ Andrew Rasdal
Name: Title:	Andrew Rasdal President and Chief Executive Officer

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Cusip No. 67424L100

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

PURCHASERS:
DOMAIN PARTNERS VII, L.P.
By:	One Palmer Square Associates VII, LLC
By:	/s/ Lisa A. Kraeutler
Name: Title: Address:	Lisa A. Kraeutler Attorney-in-Fact One Palmer Square, Suite 515 Princeton, NJ 08542 Email: Kraeutler@domainvc.com

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