Form of Securities Purchase Agreement

THIS SECURITIES PURCHASE AGREEMENT (this “Agreement”), dated as of July 9, 2008, by and among Threshold Pharmaceuticals, Inc., a Delaware corporation with headquarters located at 1300 Seaport Boulevard, Redwood City, CA 94063 (the “Company”), and each investor identified on the signature pages hereto (individually, an “Investor” and collectively, the “Investors”).

A. The Company and each Investor are executing and delivering this Agreement in reliance upon the exemption from registration afforded by Section 4(2) of the Securities Act of 1933, as amended (the “Securities Act”), and Rule 506 of Regulation D (“Regulation D”) as promulgated by the United States Securities and Exchange Commission (the “SEC”) under the Securities Act.

B. Each Investor, severally and not jointly, wishes to purchase, and the Company wishes to sell, subject to the Stockholder Approval (as defined herein) and upon the terms and conditions stated in this Agreement, (i) that aggregate number of shares of the common stock, par value $0.001 per share, of the Company (the “Common Stock”), set forth on such Investor’s signature page to this Agreement for a price per share equal to $0.34 (the “Per Share Price”) (which aggregate amount for all Investors together shall be 53,823,530 shares of Common Stock and shall collectively be referred to herein as the “Shares,” for an aggregate purchase price of $18,300,000 (the “Purchase Price”)) and (ii) warrants, in substantially the form attached hereto as Exhibit A (the “Warrants”), to acquire up to that number of additional shares of Common Stock set forth on such Investor’s signature page to this Agreement (the shares of Common Stock issuable upon exercise of or otherwise pursuant to the Warrants issued to the Investors, which aggregate amount for all Investors together shall be 21,529,413, collectively, the “Warrant Shares”).

C. The Shares, the Warrants and the Warrant Shares issued or issuable pursuant to this Agreement are collectively referred to herein as the “Securities.”

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 Investors agree as follows:

1.1 Definitions. In addition to the terms defined elsewhere in this Agreement, the following terms have the meanings indicated:

“Affiliate” means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common control with a Person, as such terms are used in and construed under Rule 144 under the Securities Act.

“Best Efforts” means the efforts that a prudent person desirous of achieving a result would use in similar circumstances to ensure that such result is achieved as expeditiously as practical; provided, however, that an obligation to use Best Efforts under this Agreement does not require the Company to dispose of or make any change to its business, expend any material funds or incur any other material burden.

“Business Day” means any day other than Saturday, Sunday, any day which shall be a federal legal holiday in the United States or any day on which banking institutions in The State of New York are authorized or required by law or other governmental action to close.

“Closing” means the closing of the purchase and sale of the Securities pursuant to Section 2.1.

“Closing Bid Price” shall mean, for any security as of any date, the last closing bid price for such security on the Trading Market, as reported by Bloomberg, or, if the Trading Market begins to operate on an extended hours basis and does not designate the closing bid price, then the last bid price of such security prior to 4:00:00 p.m., New York Time, as reported by Bloomberg, or, if the Trading Market is not the principal securities exchange or trading market for such security, the last closing bid price or last trade price, respectively, of such security on the Eligible Market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not apply, the average of the bid prices, or the ask prices, respectively, of any market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the National Quotation Bureau, Inc.); provided, that if the Closing Bid Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Closing Bid Price of such security on such date shall be the fair market value as mutually determined by the Company and the applicable Investors.

“Closing Date” shall mean the seventh Business Day following the date that the Company has satisfied the conditions to closing set forth in Section 5.1, including the receipt of Stockholder Approval, or such other time as shall be mutually agreed to by the Company and each Investor.

“Company Counsel” means Morrison & Foerster LLP, counsel to the Company.

“Convertible Securities” means any stock or securities (other than Options) convertible into or exercisable or exchangeable for Common Stock.

“Effective Date” means the date that the Registration Statement is first declared effective by the SEC.

“Eligible Market” means any of the New York Stock Exchange, the American Stock Exchange, the NASDAQ Global Select Market, the NASDAQ Global Market, the NASDAQ Capital Market or OTC Bulletin Board.

“Excluded Investors” means (i) Lazard Freres & Co. LLC and its Affiliates, and (ii) MTS Investment Advisors, Inc. and its Affiliates.

“Exempt Issuance” shall mean the issuance of: (a) shares of Common Stock or Convertible Securities, or options to employees, officers or directors of the Company pursuant to any stock or option plan duly adopted for such purpose by the Board of Directors or a majority of the members of a committee established for such purpose; (b) securities upon the exercise of the Warrants and/or the exercise or conversion of Convertible Securities issued and outstanding on the date of this Agreement; provided, that such securities have not been amended since the date hereof to increase the number of such securities or to decrease the exercise, exchange or conversion price of such securities; (c) securities issuable in accordance with existing obligations of the Company to Company employees, officers, directors, consultants or agents; (d) securities issuable to any employees or former agents of the Company in satisfaction of or in settlement of any disputes or controversies concerning the terms of such person’s employment or separation from the Company; (e) securities issued for consideration other than cash pursuant to a merger, consolidation, acquisition, licensing or similar business combination the primary purpose of which is not to raise equity capital; (f) securities issued in connection with any stock split, stock dividend, recapitalization or similar transaction by the Company; (g) securities issued as consideration, whether in whole or in part, to any person or entity for providing services or supplying goods to the Company; (h) securities issued to any entity which is or will be, itself or

through its subsidiaries or affiliates, an operating company in a business related to or complementary with the business of the Company and in which the Company receives material benefits in addition to the investment of funds; (i) securities issued pursuant to any equipment leasing arrangement; (j) securities issued to pay all or a portion of any investment banking, finders or similar fee or commission, which entitles the holders thereof to acquire shares of Common Stock at a price not less than the market price of the Common Stock on the date of such issuance and which is not subject to any adjustments other than on account of stock splits and reverse stock splits; and (k) any other securities as may be mutually agreed in writing prior to their issuance by the Company and the Investors holding 60% of the shares of Common Stock purchased under this Agreement.

“Filing Date” means the date that is thirty (30) days after the date of the Stockholder Approval or, if such date is not a Business Day, the next date that is a Business Day.

“Intellectual Property Rights” has the meaning set forth in Section 3.1(t).

“Lien” means any lien, charge, claim, security interest, encumbrance, right of first refusal or other restriction.

“Losses” means any and all losses, claims, damages, liabilities, settlement costs and expenses, including, without limitation, reasonable attorneys’ fees.

“Material Adverse Effect” means (i) a material adverse effect on the results of operations, assets, business or financial condition of the Company and the Subsidiaries taken as a whole on a consolidated basis or (ii) material and adverse impairment of the Company’s ability to perform its obligations under any of the Transaction Documents; provided, that none of the following alone shall be deemed, in and of itself, to constitute a Material Adverse Effect: (i) a change in the market price or trading volume of the Common Stock or (ii) changes in general economic conditions or changes affecting the industry in which the Company operates generally (as opposed to Company-specific changes).

“Options” means any outstanding rights, warrants or options to subscribe for or purchase Common Stock or Convertible Securities.

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

“Prospectus” means the prospectus included in the 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 promulgated under 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 the 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.

“Registrable Securities” means the Shares and the Warrant Shares issued or issuable pursuant to the Transaction Documents, together with any securities issued or issuable upon any stock split, dividend or other distribution, recapitalization or similar event with respect to the foregoing.

“Registration Statement” means each registration statement required to be filed under Article VI, including (in each case) the Prospectus, amendments and supplements to 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.

“Required Effectiveness Date” means (i) if the Registration Statement does not become subject to review by the SEC, the date which is the earliest of (a) ninety (90) days after the Closing Date or (b) five (5) Trading Days after the Company receives notification from the SEC that the Registration Statement will not become subject to review, or (ii) if the Registration Statement becomes subject to review by the SEC, the date which is the earliest of (a) one hundred twenty (120) days after the Closing Date or (b) five (5) Trading Days after the Company receives notification from the SEC that the SEC has no further comment to the Registration Statement.

“Rule 144,” “Rule 415,” and “Rule 424” means Rule 144, Rule 415 and Rule 424, respectively, promulgated by the SEC pursuant to the Securities Act, as such Rules may be amended from time to time, or any similar rule or regulation hereafter adopted by the SEC having substantially the same effect as such Rule.

“Stockholder Approval” means the approval by the Company’s stockholders of the issuance of all the Securities. In order to solicit such Stockholder Approval, the Company shall as soon as practical provide each stockholder entitled to vote at a special meeting of stockholders of the Company (the “Stockholder Meeting”) a proxy statement meeting the requirements of Section 14 of the Exchange Act and the related rules and regulations promulgated thereunder by the SEC (the “Proxy Statement”) soliciting each such stockholder’s affirmative vote at the Stockholder Meeting, which meeting shall be called promptly but in no event later than forty-five (45) days from the date hereof (unless the Proxy Statement relating to the Stockholder Meeting is reviewed by the SEC, in which case such date shall be extended to ninety (90) days from the date hereof), for approval of resolutions approving the Company’s issuance of all of the Securities in accordance with the law and the rules and regulations of Nasdaq and the Delaware General Corporation Law, and the Company shall use its Best Efforts to solicit its stockholders’ approval of such resolutions. The Proxy Statement shall contain a recommendation by the Board of Directors of the Company that the resolutions approving the Company’s issuance of all Securities be approved. Notwithstanding any other provision of this Agreement, no Securities shall be issued under this Agreement to any Investor prior to the Stockholder Approval except in accordance with the rules and interpretations of Nasdaq. The Company and the Investors shall cooperate with one another (i) in connection with the preparation of the Proxy Statement, and (ii) in taking such actions or making any such filings, furnishing information required in connection with the Proxy Statement and seeking timely to obtain any such actions, consents, approvals or waivers. The Investors and their counsel shall be given no less than five (5) Trading Days to review and comment on the Proxy Statement before that document (or any amendment thereto) is filed with the SEC, and reasonable and good faith consideration shall be given to any comments made by such party and its counsel. Each of the Investors and the Company shall provide the other party and its counsel with (x) any comments or other communications, whether written or oral, that such party or its counsel may receive from time to time from the SEC or its staff with respect to the Proxy Statement promptly after receipt of those comments or other communications and (y) a reasonable opportunity to participate in the response to those comments and to provide comments on that response (to which reasonable and good faith consideration shall be given), including by participating in any discussions or meetings with the SEC.

“Subsidiaries” or “Subsidiary” means the direct or indirect subsidiaries of the Company.

“Trading Day” means (i) a day on which the Common Stock is traded on a Trading Market (other than the OTC Bulletin Board), or (ii) if the Common Stock is not listed or quoted on a Trading Market (other than the OTC Bulletin Board), a day on which the Common Stock is traded in the over-the-counter market, as reported by the OTC Bulletin Board, or (iii) if the Common Stock is not listed or quoted on any Trading Market, a day on which the Common Stock is quoted in the over-the-counter market as reported by the Pink Sheets LLC (or any similar organization or agency succeeding to its functions of reporting prices); provided, that in the event that the Common Stock is not listed or quoted as set forth in (i), (ii) and (iii) hereof, then Trading Day shall mean a Business Day.

“Trading Market” means whichever of the New York Stock Exchange, the American Stock Exchange, the NASDAQ Global Select Market, the NASDAQ Global Market, the NASDAQ Capital Market or OTC Bulletin Board on which the Common Stock is listed or quoted for trading on the date in question.

“Transaction Documents” means this Agreement, the schedules and exhibits attached hereto, the Warrants, the Transfer Agent Instructions and any confidentiality agreements entered into between the Company and any Investors.

“Transfer Agent” means Mellon Investor Services LLC, located at 525 Market Street, Suite 3500, San Francisco, California 94105, or any successor transfer agent for the Company.

“Transfer Agent Instructions” means, with respect to the Company, the Irrevocable Transfer Agent Instructions, in the form of Exhibit E, executed by the Company and delivered to and acknowledged in writing by the Transfer Agent.

2.1 Closing. Subject to the Stockholder Approval and the terms and conditions of this Agreement, on the Closing Date, each Investor shall severally, and not jointly, purchase, and the Company shall sell and issue to each Investor, the Shares and the Warrants in the respective amounts set forth on such Investor’s signature page to this Agreement attached hereto in exchange for a payment by such Investor of the Per Share Price multiplied by the number of Shares set forth on such Investor’s signature page to this Agreement. The date and time of the Closing shall be 11:00 a.m., New York City time, on the Closing Date, or such later date agreed to between the Company and the holders of a majority in interest of the Shares. The Closing shall take place at the offices of the Company’s Counsel.

(a) At or prior to the Closing, as the case may be, the Company shall effect, deliver or cause to be delivered to each Investor the following:

(i) a copy of the Company’s irrevocable instructions to the Transfer Agent instructing the Transfer Agent to deliver, on an expedited basis, one or more stock certificates, free and clear of all restrictive and other legends (except as expressly provided in Section 4.1(b) hereof), evidencing such number of Shares set forth on such Investor’s signature page to this Agreement, registered in the name of such Investor;

(ii) a Warrant, issued in the name of such Investor, pursuant to which such Investor shall have the right to acquire such number of Warrant Shares set forth on such Investor’s signature page to this Agreement;

(iii) duly executed Transfer Agent Instructions acknowledged by the Transfer Agent;

(iv) a legal opinion of Company Counsel, in the form of Exhibit C, executed by such counsel and delivered to the Investors;

(v) a certificate of the Secretary of the Company, dated as of the Closing Date, (a) certifying the resolutions adopted by the Board of Directors of the Company approving the transactions contemplated by this Agreement and the other Transaction Documents and the issuance of the Securities, (b) certifying the current versions of the certificate of incorporation, as amended and by-laws of the Company and (c) certifying as to the signatures and authority of persons signing the Transaction Documents and related documents on behalf of the Company; and

(vi) a certificate of the Chief Executive Officer or Chief Financial Officer of the Company, dated as of the Closing Date, certifying to the fulfillment of the conditions specified in Section 5.1(a) and (b).

(b) At the Closing, each Investor shall deliver or cause to be delivered to the Company an amount representing such Investor’s share of the Purchase Price for the Shares and Warrants as set forth on the signature pages to this Agreement in United States dollars (the number of Shares to be purchased by such Investor multiplied by the Per Share Price) and in immediately available funds, by wire transfer to an account designated in writing to such Investor by the Company for such purpose.

3.1 Representations and Warranties of the Company. The Company hereby represents and warrants to the Investors as follows (which representations and warranties shall be deemed to apply, where appropriate, to any Subsidiary of the Company):

(a) Subsidiaries. The Company owns or controls, directly or indirectly, all of the capital stock or comparable equity interests of each Subsidiary free and clear of any Lien, and all issued and outstanding shares of capital stock or comparable equity interest of each Subsidiary are validly issued and are fully paid, non-assessable and free of preemptive and similar rights; and the Company owns or controls, directly or indirectly, only the following corporations, partnerships, limited liability partnerships, limited liability companies, associations or other entities: THLD Enterprises (UK), Limited, a United Kingdom limited liability company.

(b) Organization and Qualification. The Company and each Subsidiary is an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation, with the requisite legal authority to own and use its properties and assets and to carry on its business as currently conducted. Neither the Company nor any Subsidiary is in violation of any of the provisions of its respective certificate or articles of incorporation, bylaws or other organizational or charter documents. The Company and each Subsidiary is duly qualified to do business and is in good standing as a foreign corporation or other entity in each jurisdiction in which the nature of the business conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, would not, individually or in the aggregate, have or reasonably be expected to result in a Material Adverse Effect.

(c) Authorization; Enforcement. The Company has the requisite corporate authority to enter into and, subject to obtaining the Stockholder Approval, to consummate the transactions contemplated by each of the Transaction Documents to which it is a party and otherwise to carry out its obligations hereunder and thereunder. The execution and delivery of each of the Transaction Documents to which it is a party by the Company and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all necessary corporate action on the part of the Company and no further consent or action is required by the Company, its Board of Directors or its stockholders (other than the Stockholder Approval). Each of the Transaction Documents to which it is a party has been (or upon delivery will be) duly executed by the Company and is, or when delivered in accordance with the terms hereof, will constitute, the valid and binding obligation of the Company enforceable against the Company in accordance with its terms, except (i) as limited by general equitable principles and applicable bankruptcy, insolvency, reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law.

(d) No Conflicts. The execution, delivery and performance of the Transaction Documents to which it is a party by the Company and, assuming the Stockholder Approval is obtained, the consummation by the Company of the transactions contemplated hereby and thereby do not, and will not, (i) conflict with or violate any provision of the Company’s or any Subsidiary’s certificate or articles of incorporation, bylaws or other organizational or charter documents, (ii) conflict with, or constitute a default (or an event that with notice or lapse of time or both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation (with or without notice, lapse of time or

both) of, any agreement, credit facility, debt or other instrument (evidencing a Company or Subsidiary debt or otherwise) or other understanding to which the Company or any Subsidiary is a party or by which any property or asset of the Company or any Subsidiary is bound, or affected, except to the extent that such conflict, default, termination, amendment, acceleration or cancellation right would not reasonably be expected to have a Material Adverse Effect, or (iii) result in a violation of any law, rule, regulation, order, judgment, injunction, decree or other restriction of any court or governmental authority to which the Company or any Subsidiary is subject (including, assuming the accuracy of the representations and warranties of the Investors set forth in Section 3.2 hereof, federal and state securities laws and regulations and the rules and regulations of any self-regulatory organization to which the Company or its securities are subject, including all applicable Trading Markets), or by which any property or asset of the Company or any Subsidiary are bound or affected, except to the extent that such violation would not reasonably be expected to have a Material Adverse Effect.

(e) Securities. Upon receipt of the Stockholder Approval, the Securities (including the Warrant Shares) shall be duly authorized and, when issued and paid for in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid and nonassessable, free and clear of all Liens and will not be subject to preemptive or similar rights of stockholders (other than those imposed by the Investors). The Company has reserved from its duly authorized capital stock the maximum number of shares of Common Stock issuable upon exercise of the Warrants.

(f) Capitalization. The SEC Reports accurately report the number of shares and type of all authorized, issued and outstanding shares of capital stock of the Company as of the respective dates of such reports. All outstanding shares of capital stock are duly authorized, validly issued, fully paid and nonassessable and have been issued in compliance in all material respects with all applicable securities laws. Except as a result of the purchase and sale of the Shares and Warrants that may be issued pursuant to this Agreement and, except as described in the SEC Reports, there are no outstanding options, warrants, script rights to subscribe to, calls or commitments of any character whatsoever relating to shares of capital stock of the Company, or, rights or obligations convertible into or exchangeable for, or giving any Person any right to subscribe for or acquire, any shares of capital stock of the Company, or contracts, commitments, understandings or arrangements by which the Company is or may become bound to issue additional shares of its capital stock or rights convertible or exchangeable into shares of its capital stock. The issuance and sale of the Securities will not result in a right of any holder of outstanding securities of the Company to adjust the exercise, conversion, exchange or reset price under any outstanding securities. To the knowledge of the Company, except as disclosed in the SEC Reports and any Schedules 13D or 13G filed with the SEC pursuant to Rule 13d-1 of the Exchange Act by reporting persons or in Schedule 3.1(f) hereto, no Person or group of related Persons beneficially owns (as determined pursuant to Rule 13d-3 under the Exchange Act), or has the right to acquire, by agreement with or by obligation binding upon the Company, beneficial ownership of in excess of 5% of the outstanding shares of any class of the capital stock of the Company.

(g) SEC Reports; Financial Statements. Except as set forth on Schedule 3.1(g), the Company has filed all reports required to be filed by it under the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, for the twelve (12) months preceding the date hereof on a timely basis or has received a valid extension of such time of filing and has filed any such SEC Reports prior to the expiration of any such extension and has filed all reports required to be filed by it under the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, for the two (2) years preceding the date hereof. Such reports required to be filed by the Company under the Exchange Act during the two (2) years preceding the date of this Agreement, including pursuant to Section 13(a) or 15(d) thereof, together with any materials filed or furnished by the Company under the Exchange Act during the two (2) years preceding the date of this Agreement, whether or not any such reports were required being collectively referred to herein as the “SEC Reports” and, together with this Agreement and the Schedules to this Agreement, the “Disclosure Materials”. As of their respective dates (or, if amended or superseded by a filing prior to the Closing Date, then on the date of such filing), the SEC Reports filed by the Company complied in all material respects with the requirements of the Securities Act and the Exchange Act and the rules and regulations of the SEC promulgated thereunder, and none of the SEC Reports, when filed (or, if amended or superseded by a filing prior to the Closing Date, then on the date of such filing) by the Company, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The financial statements of the Company included in the SEC Reports comply in all material respects with applicable accounting requirements and the rules and regulations of the SEC with respect thereto as in effect at the time of filing (or, if amended or superseded by a filing prior to the Closing Date, then on the date of such filing). Such financial statements have been prepared in accordance with United States generally accepted accounting principles applied on a consistent basis during the periods involved (“GAAP”), except as may be otherwise specified in such financial statements, the notes thereto and except that unaudited financial statements may not contain all footnotes required by GAAP or may be condensed or summary statements, and fairly present the consolidated financial position of the Company and its Subsidiaries as of and for the dates thereof and the results of operations and cash flows for the periods then ended, subject, in the case of unaudited statements, to normal, year-end audit adjustments. All material agreements to which the Company or any Subsidiary is a party or to which the property or assets of the Company or any Subsidiary are subject are included as part of or identified in the SEC Reports, to the extent such agreements are required to be included or identified pursuant to the rules and regulations of the SEC.

(h) Material Changes; Undisclosed Events, Liabilities or Developments; Solvency. Since the date of the latest audited financial statements included within the SEC Reports, except as disclosed in the SEC Reports, (i) there has been no event, occurrence or development that, individually or in the aggregate, has had or that would reasonably be expected to result in a Material Adverse Effect, (ii) the Company has not incurred any material liabilities other than (A) trade payables and accrued expenses incurred in the ordinary course of business consistent with past practice and (B) liabilities not required to be reflected in the Company’s financial statements pursuant to GAAP or required to be disclosed in filings made with the SEC, (iii) the Company has not altered its method of accounting or changed its auditors, except as disclosed in its SEC Reports, (iv) the Company has not declared or made any dividend or distribution of cash or other property to its stockholders, in their capacities as such, or purchased, redeemed or made any agreements to

purchase or redeem any shares of its capital stock, except for the repurchase of shares of Common Stock from employees, consultants or service providers in connection with the termination of services pursuant to agreements with the Company providing for such repurchase right, and (v) the Company has not issued any equity securities to any officer, director or Affiliate, except pursuant to Company stock-based plans in existence as of the date of this Agreement. The Company has not taken any steps to seek protection pursuant to any bankruptcy law nor does the Company have any knowledge or reason to believe that its creditors intend to initiate involuntary bankruptcy proceedings or any actual knowledge of any fact which would reasonably lead a creditor to do so. The Company is not, as of the date hereof, and after giving effect to the transactions contemplated hereby to occur at the Closing, will not be, Insolvent (as defined below). For purposes of this Section 3.1(h), “Insolvent” means (i) the present fair saleable value of the Company’s assets is less than the amount required to pay the Company’s total Indebtedness (as defined in Section 3.1(aa)), (ii) the Company is unable to pay its debts and liabilities, subordinated, contingent or otherwise, as such debts and liabilities become absolute and matured, (iii) the Company intends to incur or believes that it will incur debts that would be beyond its ability to pay as such debts mature or (iv) the Company has unreasonably small capital with which to conduct the business in which it is engaged as such business is now conducted and is proposed to be conducted.

(i) Absence of Litigation. Except as disclosed in the SEC Reports, as of the date hereof, there is no action, suit, claim, or Proceeding, or, to the Company’s knowledge, inquiry or investigation, before or by any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company, threatened against or affecting the Company or any Subsidiary or any of their respective properties or assets that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(j) Compliance. (i) Neither the Company nor any Subsidiary is in default under or in violation of (and no event has occurred that has not been waived that, with notice or lapse of time or both, would result in a default by the Company or any Subsidiary under), nor has the Company or any Subsidiary received written notice of a claim that it is in default under or that it is in violation of, any indenture, loan or credit agreement or any other agreement or instrument to which it is a party or by which it or any of its properties is bound (whether or not such default or violation has been waived), the default under of violation of which would reasonably be expected to have a Material Adverse Effect, (ii) neither the Company nor any Subsidiary is in violation of any order of any court, arbitrator, or governmental body which would reasonably be expected to have a Material Adverse Effect, and (iii) neither the Company nor any Subsidiary is or has been in violation of any statute, rule or regulation of any governmental authority, the violation of which would reasonably be expected to have a Material Adverse Effect.

(k) Title to Assets. Neither the Company nor any Subsidiary owns real property. The Company and each Subsidiary has good and marketable title in all personal property owned by them that is material to the business of the Company and each Subsidiary, in each case free and clear of all Liens, except for Liens that would not, individually or in the aggregate, reasonably be expected to have or result in a Material Adverse Effect. Any real

property and facilities held under lease by the Company or any Subsidiary is held by it under valid, subsisting and enforceable leases of which the Company and each Subsidiary is in material compliance.

(l) No General Solicitation; Placement Agents’ Fees. Neither the Company, nor any of its Affiliates, nor any Person acting on its or their behalf, has engaged in any form of general solicitation or general advertising (within the meaning of Regulation D) in connection with the offer or sale of the Securities. The Company acknowledges that is has engaged Lazard Freres & Co. LLC and MTS Investment Advisors, Inc. as the placement agents (each an “Agent”, and collectively, the “Agents”) in connection with the sale of the Securities. Other than the Agents, the Company has not engaged any other placement agent or other agent in connection with the sale of the Securities and the Company shall be responsible for the payment of any placement agents’ fees, financial advisory fees, or brokers’ commission (other than for persons engaged by any Investor or its investment advisor) relating to or arising out of the issuance of the Securities pursuant to this Agreement.

(m) Private Placement; Investment Company; U.S. Real Property Holding Corporation. Neither the Company nor any of its Affiliates nor, any Person acting on the Company’s behalf has, directly or indirectly, at any time within the past six (6) months, made any offer or sale of any security or solicitation of any offer to buy any security under circumstances that would (i) eliminate the availability of the exemption from registration under Regulation D under the Securities Act in connection with the offer and sale by the Company of the Securities as contemplated hereby or (ii) cause the offering of the Securities pursuant to the Transaction Documents to be integrated with prior offerings by the Company for purposes of any applicable law, regulation or stockholder approval provisions, including, without limitation, under the rules and regulations of any Trading Market. Assuming the accuracy of the representations and warranties of the Investors set forth in Section 3.2, no registration under the Securities Act is required for the offer and sale of the Securities by the Company to the Investors as contemplated hereby. The sale and issuance of the Securities hereunder does not contravene the rules and regulations of any Trading Market on which the Common Stock is listed or quoted. The Company is not required to be registered as, and is not an Affiliate of, an “investment company” within the meaning of the Investment Company Act of 1940, as amended. The Company is not required to be registered as a United States real property holding corporation within the meaning of the Foreign Investment in Real Property Tax Act of 1980.

(n) Form S-1 Eligibility. The Company is eligible to register the Registrable Securities for resale by the Investors using Form S-1 promulgated under the Securities Act.

(o) Listing and Maintenance Requirements. Except as disclosed in the SEC Reports, the Company has not, in the twelve (12) months preceding the date hereof, received notice (written or oral) from any Trading Market on which the Common Stock is or has been listed or quoted to the effect that the Company is not in compliance with the listing or maintenance requirements of such Trading Market.

(p) Registration Rights. Except as described the SEC Reports as of the date hereof, the Company has not granted or agreed to grant to any Person any rights (including “piggy-back” registration rights) to have any securities of the Company registered with the SEC or any other governmental authority that have not expired or been satisfied or waived.

(q) Application of Takeover Protections. The Company and its Board of Directors have taken all necessary action, if any, to render inapplicable any control share acquisition, business combination, poison pill (including any distribution under a rights agreement) or other similar anti-takeover provision under the Company’s charter documents or the laws of its state of incorporation that is or could become applicable to any of the Investors as a result of the Investors and the Company fulfilling their obligations or exercising their rights under the Transaction Documents, including, without limitation, as a result of the Company’s issuance of the Securities and the Investors’ ownership of the Securities.

(r) Disclosure. The Company confirms that neither it nor any of its officers, directors or Affiliates, has provided any of the Investors (other than Excluded Investors or those certain investors who signed a confidentiality agreement with the Company) or their agents or counsel with any information that constitutes or might constitute material, nonpublic information (other than the existence and terms of the issuance of Securities, as contemplated by this Agreement). The Company understands and confirms that each of the Investors (other than Excluded Investors or those certain investors who signed a confidentiality agreement with the Company) will rely on the foregoing representations in effecting transactions in securities of the Company. All disclosure provided by the Company to the Investors regarding the Company, its business and the transactions contemplated hereby, including the Schedules to this Agreement furnished by or on behalf of the Company, are 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 the light of the circumstances under which they were made, not misleading. To the Company’s knowledge, except for the transactions contemplated by this Agreement, no event or circumstance has occurred or information exists with respect to the Company or any Subsidiary or their businesses, properties, operations or financial condition, which, under applicable law, rule or regulation, requires public disclosure or announcement by the Company but which has not been so publicly announced or disclosed. The Company acknowledges and agrees that no Investor (other than Excluded Investors) makes or has made any representations or warranties with respect to the transactions contemplated hereby other than those set forth in the Transaction Documents.

(s) Acknowledgment Regarding Investors’ Purchase of Securities. Based upon the assumption that the transactions contemplated by this Agreement are consummated in all material respects in conformity with the Transaction Documents, the Company acknowledges and agrees that each of the Investors (other than Excluded Investors) is acting solely in the capacity of an arm’s length purchaser with respect to the Transaction Documents and the transactions contemplated hereby and thereby. The Company further acknowledges that no Investor (other than Excluded Investors) is acting as a financial advisor or fiduciary of the Company (or in any similar capacity) with respect to this Agreement and the transactions contemplated hereby and any advice given by any Investor (other than Excluded Investors) or any of their respective representatives or agents in connection with the Transaction Documents and the transactions contemplated hereby and thereby is merely

incidental to the Investors’ purchase of the Securities. The Company further represents to each Investor that the Company’s decision to enter into this Agreement has been based solely on the independent evaluation of the transactions contemplated hereby by the Company and its advisors and representatives.

(t) Patents and Trademarks. As of the date hereof, the Company and each Subsidiary owns, or possesses adequate rights or licenses to use, all trademarks, trade names, service marks, service mark registrations, service names, patents, patent rights, copyrights, inventions, licenses, approvals, governmental authorizations, trade secrets and other intellectual property rights necessary to conduct their respective businesses as now conducted (“Intellectual Property Rights”), except as would not reasonably be expected to have a Material Adverse Effect. None of the Company’s or any Subsidiary’s Intellectual Property Rights have expired or terminated. As of the date hereof, the Company does not have any knowledge of any infringement by the Company or any Subsidiary of Intellectual Property Rights of others. Except as disclosed in the SEC Reports, as of the date hereof, there is no claim, action or proceeding being made or brought, or to the knowledge of the Company, being threatened, against the Company or any Subsidiary regarding its Intellectual Property Rights.

(u) Insurance. The Company and each Subsidiary is insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent and customary in the businesses and locations in which the Company and each Subsidiary is engaged.

(v) Regulatory Permits. The Company and each Subsidiary possesses all certificates, authorizations and permits issued by the appropriate federal, state, local or foreign regulatory authorities necessary to conduct their respective businesses as presently conducted and described in the SEC Reports as of the date hereof (“Material Permits”), except where the failure to possess such permits would not, individually or in the aggregate, have or reasonably be expected to result in a Material Adverse Effect, and neither the Company nor any Subsidiary has received any written notice of proceedings relating to the revocation or modification of any Material Permit.

(w) Transactions With Affiliates and Employees. Except as set forth or incorporated by reference in the Company’s SEC Reports, as of the date hereof, none of the officers, directors or employees of the Company is presently a party to any transaction with the Company or to any presently contemplated transaction with the Company that would be required to be reported on Form 10-K by Item 13 thereof pursuant to Regulation S-K Item 404(a) (other than for ordinary course services as employees, officers or 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, or otherwise requiring payments to or from any such officer, director or employee or, to the Company’s knowledge, any corporation, partnership, trust or other entity in which any such officer, director, or employee has a substantial interest or is an officer, director, trustee or partner.

(x) Internal Accounting Controls. The Company and its Subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability, (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 the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. The Company has established disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and designed such disclosure controls and procedures to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. The Company’s certifying officers have evaluated the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by the Company’s most recently filed periodic report under the Exchange Act (such date, the “Evaluation Date”). The Company presented in its most recently filed periodic report under the Exchange Act the conclusions of the certifying officers about the effectiveness of the disclosure controls and procedures based on their evaluations as of the Evaluation Date. Since the Evaluation Date, there have been no changes in the Company’s internal control over financial reporting (as such term is defined in the Exchange Act) that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

(y) Sarbanes-Oxley Act. The Company is in compliance with the applicable requirements of the Sarbanes-Oxley Act of 2002 and applicable rules and regulations promulgated by the SEC thereunder, except where such noncompliance would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(z) Foreign Corrupt Practices. Neither the Company nor any Subsidiary nor, to the knowledge of the Company, any director, officer, agent, employee or other Person acting on behalf of the Company or any Subsidiary has, in the course of its actions for, or on behalf of, the Company (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expenses relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee or to any foreign or domestic political parties or campaigns from corporate funds; (iii) violated or is in violation in any material respect of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as amended; or (iv) made any unlawful bribe, rebate, payoff, influence payment, kickback or other unlawful payment to any foreign or domestic government official or employee.

(aa) Indebtedness. Except as disclosed in the SEC Reports, as of the date hereof, neither the Company nor any Subsidiary (i) has any outstanding Indebtedness (as defined below), (ii) is in violation of any term of or is in default under any contract, agreement or instrument relating to any Indebtedness, except where such violations and defaults would not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect, and (iii) is a party to any contract, agreement or instrument relating to any Indebtedness, the performance of which, in the reasonable judgment of the Company’s officers, has or is reasonably expected to have a Material Adverse Effect. For purposes of

this Agreement: (x) “Indebtedness” of any Person means, without duplication (A) all indebtedness for borrowed money, (B) all obligations issued, undertaken or assumed as the deferred purchase price of property or services (other than trade payables entered into in the ordinary course of business), (C) all reimbursement or payment obligations with respect to letters of credit, surety bonds and other similar instruments, (D) all obligations evidenced by notes, bonds, debentures or similar instruments, including obligations so evidenced incurred in connection with the acquisition of property, assets or businesses, (E) all indebtedness created or arising under any conditional sale or other title retention agreement, or incurred as financing, in either case with respect to any property or assets acquired with the proceeds of such indebtedness (even though the rights and remedies of the seller or bank under such agreement in the event of default are limited to repossession or sale of such property), (F) all monetary obligations under any leasing or similar arrangement which, in connection with GAAP, consistently applied for the periods covered thereby, is classified as a capital lease, (G) all indebtedness referred to in clauses (A) through (F) above secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by) any mortgage, lien, pledge, charge, security interest or other encumbrance upon or in any property or assets (including accounts and contract rights) owned by any Person, even though the Person which owns such assets or property has not assumed or become liable for the payment of such indebtedness, and (H) all Contingent Obligations in respect of indebtedness or obligations of others of the kinds referred to in clauses (A) through (G) above; (y) “Contingent Obligation” means, as to any Person, any direct or indirect liability, contingent or otherwise, of that Person with respect to any indebtedness, lease, dividend or other obligation of another Person if the primary purpose or intent of the Person incurring such liability, or the primary effect thereof, is to provide assurance to the obligee of such liability that such liability will be paid or discharged, or that any agreements relating thereto will be complied with, or that the holders of such liability will be protected (in whole or in part) against loss with respect thereto; and (z) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization, a government or any department or agency thereof and any other legal entity.

(bb) Employee Relations. Neither the Company nor any Subsidiary is a party to any collective bargaining agreement or employs any member of a union. The Company believes that its relations with its employees are as disclosed in the SEC Reports. Except as disclosed in the SEC Reports, as of the date hereof, no executive officer of the Company or any Subsidiary has notified the Company or any Subsidiary that such officer intends to leave the Company or a Subsidiary, as applicable, or otherwise terminate such officer’s employment with the Company or a Subsidiary, as applicable. To the knowledge of the Company or any Subsidiary, as of the date hereof, no executive officer of the Company or any Subsidiary is in violation of any material term of any employment contract, confidentiality, disclosure or proprietary information agreement, non-competition agreement, or any other contract or agreement or any restrictive covenant, and the continued employment of each such executive officer does not subject the Company or any Subsidiary to any liability with respect to any of the foregoing matters.

(cc) Labor Matters. The Company and each Subsidiary is in compliance with all federal, state, local and foreign laws and regulations respecting labor, employment and employment practices and benefits, terms and conditions of employment and wages and hours, except where failure to be in compliance would not, either individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

(dd) Environmental Laws. The Company and each Subsidiary (i) is in compliance with any and all Environmental Laws (as hereinafter defined), (ii) has received all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct their respective businesses and (iii) is in compliance with all terms and conditions of any such permit, license or approval where, in each of the foregoing clauses (i), (ii) and (iii), the failure to so comply would not be reasonably expected to have, individually or in the aggregate, a Material Adverse Effect. The term “Environmental Laws” means all federal, state, local or foreign laws relating to pollution or protection of human health or the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata), including, without limitation, laws relating to emissions, discharges, releases or threatened releases of chemicals, pollutants, contaminants, or toxic or hazardous substances or wastes (collectively, “Hazardous Materials”) into the environment, or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials, as well as all authorizations, codes, decrees, demands or demand letters, injunctions, judgments, licenses, notices or notice letters, orders, permits, plans or regulations issued, entered, promulgated or approved thereunder.

(ee) Subsidiary Rights. The Company or its Subsidiaries have the unrestricted right to vote, and (subject to limitations imposed by applicable law) to receive dividends and distributions on, all capital securities of its Subsidiaries as owned by the Company.

(ff) Tax Status. Except for matters that would not, individually or in the aggregate, have or reasonably be expected to result in a Material Adverse Effect, the Company and each Subsidiary (i) has made or filed all foreign, federal and state income and all other tax returns, reports and declarations required by any jurisdiction to which it is subject, (ii) has paid all taxes and other governmental assessments and charges shown or determined to be due on such returns, reports and declarations, except those being contested in good faith and (iii) has set aside on its books provision reasonably adequate for the payment of all taxes for periods subsequent to the periods to which such returns, reports or declarations apply. There are no unpaid taxes in any material amount claimed to be due by the taxing authority of any jurisdiction, and the officers of the Company know of no basis for any such claim.

(gg) The Company is not, and was not in the past, a “Shell Company” (as defined in Rule 405 promulgated under the Securities Act).

3.2 Representations and Warranties of the Investors. Each Investor hereby, as to itself only and for no other Investor, represents and warrants to the Company as follows:

(a) Organization; Authority. Such Investor is an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization with the requisite corporate, partnership or other power and authority to enter into and to

consummate the transactions contemplated by the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder. The purchase by such Investor of the Securities hereunder has been duly authorized by all necessary corporate, partnership or other action on the part of such Investor. This Agreement has been duly executed and delivered by such Investor and constitutes the valid and binding obligation of such Investor, enforceable against it in accordance with its terms, except (i) as limited by general equitable principles and applicable bankruptcy, insolvency, reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law.

(b) No Public Sale or Distribution. Such Investor is (i) acquiring the Shares and the Warrants and (ii) upon exercise of the Warrants will acquire the Warrant Shares issuable upon exercise thereof, in the ordinary course of business for its own account and not with a view towards, or for resale in connection with, the public sale or distribution thereof, except pursuant to sales registered under the Securities Act or under an exemption from such registration and in compliance with applicable federal and state securities laws, and such Investor does not have a present arrangement to effect any distribution of the Securities to or through any person or entity; provided, however, that by making the representations herein, such Investor does not agree to hold any of the Securities for any minimum or other specific term and reserves the right to dispose of the Securities at any time in accordance with or pursuant to a registration statement or an exemption under the Securities Act.

(c) Investor Status. At the time such Investor was offered the Securities, it was, at the date hereof it is, and on the date which it exercises any Warrants it will be an “accredited investor” as defined in Rule 501(a) under the Securities Act or a “qualified institutional buyer” as defined in Rule 144A(a) under the Securities Act. Such Investor is not a registered broker dealer registered under Section 15(a) of the Exchange Act, or a member of the Financial Industry Regulatory Association (“FINRA”) or an entity engaged in the business of being a broker dealer. Except as otherwise disclosed in writing to the Company on Exhibit B-2 (attached hereto) on or prior to the date of this Agreement, such Investor is not affiliated with any broker dealer registered under Section 15(a) of the Exchange Act, or a member of FINRA or an entity engaged in the business of being a broker dealer.

(d) General Solicitation. Such Investor is not purchasing the Securities as a result of any advertisement, article, notice or other communication regarding the Securities published in any newspaper, magazine or similar media, broadcast over television or radio, disseminated over the Internet or presented at any seminar or any other general solicitation or general advertisement.

(e) Experience of Such Investor. Such Investor, either alone or together with its representatives has such knowledge, sophistication and experience in business and financial matters so as to be capable of evaluating the merits and risks of the prospective investment in the Securities, and has so evaluated the merits and risks of such investment. Such Investor understands that it must bear the economic risk of this investment in the Securities indefinitely, and is able to bear such risk and is able to afford a complete loss of such investment.

(f) Access to Information. Such Investor acknowledges that it has reviewed the Disclosure Materials and has been afforded: (i) the opportunity to ask such questions as it has deemed necessary of, and to receive answers from, representatives of the Company concerning the terms and conditions of the offering of the Securities and the merits and risks of investing in the Securities; (ii) access to information (other than material non-public information for those certain investors who did not enter into a confidentiality agreement with the Company) about the Company and each Subsidiary and their respective financial condition, results of operations, business, properties, management and prospects sufficient to enable it to evaluate its investment; and (iii) the opportunity to obtain such additional information that the Company possesses or can acquire without unreasonable effort or expense that is necessary to make an informed investment decision with respect to the investment. Neither such inquiries nor any other investigation conducted by or on behalf of such Investor or its representatives or counsel shall modify, amend or affect such Investor’s right to rely on the truth, accuracy and completeness of the Disclosure Materials and the Company’s representations and warranties contained in the Transaction Documents. Such Investor acknowledges receipt of copies of the SEC Reports.

(g) No Governmental Review. Such Investor understands that no United States federal or state agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Securities or the fairness or suitability of the investment in the Securities nor have such authorities passed upon or endorsed the merits of the offering of the Securities.

(h) No Conflicts. The execution, delivery and performance by such Investor of this Agreement and the consummation by such Investor of the transactions contemplated hereby will not (i) result in a violation of the organizational documents of such Investor or (ii) conflict with, or constitute a default (or an event which with notice or lapse of time or both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, any agreement, indenture or instrument to which such Investor is a party, or (iii) result in a violation of any law, rule, regulation, order, judgment or decree (including federal and state securities laws) applicable to such Investor, except in the case of clauses (ii) and (iii) above, for such that are not material and do not otherwise materially adversely affect the ability of such Investor to consummate the transactions contemplated hereby.

(i) Prohibited Transactions; Confidentiality. No Investor, directly or indirectly, and no Person acting on behalf of or pursuant to any understanding with any Investor, has engaged in any purchases or sales in the securities, including derivatives, of the Company (including, without limitation, any Short Sales (a “Transaction”) involving any of the Company’s securities) since the time that such Investor was first contacted by the Company, an Agent or any other Person regarding an investment in the Company. Such Investor covenants that neither it nor any Person acting on its behalf or pursuant to any understanding with such Investor will engage, directly or indirectly, in any Transactions in the securities of the Company (including Short Sales) prior to the time the transactions

contemplated by this Agreement are publicly disclosed. “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act and all types of direct and indirect stock pledges, forward sale contracts, options, puts, calls, short sales, swaps, derivatives and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker-dealers or foreign regulated brokers.

(j) Restricted Securities. The Investors understand that the Securities 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.

(k) Legends. It is understood that, except as provided in Section 4.1(b) of this Agreement, certificates evidencing such Securities may bear the legend set forth in Section 4.1(b).

(l) No Legal, Tax or Investment Advice. Such Investor understands that nothing in this Agreement or any other materials presented by or on behalf of the Company to the Investor in connection with the purchase of the Securities constitutes legal, tax or investment advice. Such Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Securities. Such Investor understands that each Agent has acted solely as an agent of the Company in this placement of the Securities, and that neither Agent makes any representation or warranty with regard to the merits of this transaction or as to the accuracy of any information such Investor may have received in connection therewith. Such Investor acknowledges that he has not relied on any information or advice furnished by or on behalf of such Agent.

(m) Such Investor shall have completed or caused to be completed and delivered to the Company upon the execution of this Agreement, the Questionnaires attached hereto as Exhibits B1-B3, and the answers to such Questionnaires are true and correct in all material respects as of the date of this Agreement and will be true and correct in all material respects as of the Closing Date and the effective date of the Registration Statement; provided, that such Investor shall be entitled to update such information by providing notice thereof to the Company before the effective date of such Registration Statement.

(a) The Investors covenant that the Securities will only be disposed of pursuant to an effective registration statement under, and in compliance with the requirements of, the Securities Act or pursuant to an available exemption from the registration requirements of the Securities Act, and in compliance with any applicable state securities laws. In connection with any transfer of Securities other than pursuant to an

effective registration statement or to the Company, or pursuant to Rule 144, the Company may require the transferor to provide to the Company an opinion of counsel selected by the transferor, the form and substance of which opinion shall be reasonably satisfactory to the Company, to the effect that such transfer does not require registration under the Securities Act. Notwithstanding the foregoing, the Company hereby consents to and agrees to register on the books of the Company and with its Transfer Agent, without any such legal opinion, except to the extent that the transfer agent requests such legal opinion, any transfer of Securities by an Investor to an Affiliate of such Investor, provided that the transferee certifies to the Company that it is an “accredited investor” as defined in Rule 501(a) under the Securities Act and provided that such Affiliate does not request any removal of any existing legends on any certificate evidencing the Securities.

(b) The Investors agree to the imprinting, until no longer required by this Section 4.1(b), of the following legend on any certificate evidencing any of the Securities:

THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN COMPLIANCE WITH APPLICABLE STATE SECURITIES LAWS OR BLUE SKY LAWS. THESE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT WITH A REGISTERED BROKER-DEALER OR OTHER LOAN WITH A FINANCIAL INSTITUTION THAT IS AN “ACCREDITED INVESTOR” AS DEFINED IN RULE 501(a) UNDER THE SECURITIES ACT OR OTHER LOAN SECURED BY SUCH SECURITIES.

Certificates evidencing the Shares and the Warrant Shares shall not be required to contain such legend or any other legend (i) while a registration statement (including the Registration Statement) covering the resale of the Shares and the Warrant Shares is effective under the Securities Act, (ii) following any sale of such Securities pursuant to Rule 144 if the holder provides the Company with a representation letter executed by such holder that is reasonably acceptable to the Company and its counsel to the effect that the Securities can be sold under Rule 144, (iii) if the Securities are eligible for sale under Rule 144, or (iv) if the holder provides the Company with a representation letter executed by such holder that is reasonably acceptable to the Company and its counsel to the effect that the legend is not required under applicable requirements of the Securities Act (including controlling judicial interpretations and pronouncements issued by the Staff of the SEC). Following the Effective Date and provided the registration statement referred to in clause (i) above is then in effect, or at such earlier time as a legend is no longer required for certain Securities, the Company will no later than three (3) Trading Days following the delivery by an Investor to the Company or the Transfer Agent (if

delivery is made to the Transfer Agent a copy shall be contemporaneously delivered to the Company) of (i) a legended certificate representing such Securities (and, in the case of a requested transfer, endorsed or with stock powers attached, signatures guaranteed, and otherwise in form necessary to affect transfer), and (ii) an opinion of counsel to the extent required by Section 4.1(a), deliver or cause to be delivered to such Investor a certificate representing such Securities that is free from all restrictive and other legends. Upon the written request of the Holder and provided that the Transfer Agent is participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer Program, the Company shall use commercially reasonable efforts to reissue such Securities to which a Holder is entitled to such Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system (“DWAC”) provided that the Holder provides the Company the reasonably necessary details to effect the foregoing DWAC delivery. When the Company is required to cause an unlegended certificate to replace a previously issued legended certificate, if: (1) the unlegended certificate is not delivered to a Investor within three Trading Days of submission by that Investor of a legended certificate and supporting documentation to the Company and its counsel as provided above and (2) prior to the time such unlegended certificate is received by the Investor, the Investor, or any third party on behalf of such Investor or for the Investor’s account, purchases (in an open market transaction or otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Investor of shares represented by such certificate (a “Buy-In”), then the Company shall either (i) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue such shares of Common Stock) or credit such Holder’s balance account with DTC shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or certificates representing such shares of Common Stock or credit such Holder’s balance account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the Closing Bid Price on the date of exercise. The Company may not make any notation on its records or give instructions to the Transfer Agent that enlarge the restrictions on transfer set forth in this Section.

(c) The Company will not object to and shall permit (except as prohibited by law) an Investor to pledge or grant a security interest in some or all of the Securities in connection with a bona fide margin agreement with a registered broker-dealer or grant a security interest in some or all of the Securities 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, the Company will not object to and shall permit (except as prohibited by law) such Investor to transfer pledged or secured Securities to the pledgees or secured parties. Except as required by law, such a pledge or transfer would not be subject to approval of the Company, no legal opinion of the pledgee, secured party or pledgor shall be required in connection therewith (but such legal opinion shall be required in connection with a subsequent transfer or foreclosure following default by the Investor transferee of the pledge), and no notice shall be required of such pledge. Each Investor acknowledges that the Company shall not be responsible for any pledges relating to, or the grant of any security interest in, any of the Securities or for any agreement, understanding or arrangement between any Investor and its pledgee or secured party. At the appropriate Investor’s expense, the Company will execute and deliver such reasonable documentation as a pledgee or secured party of Securities may reasonably request in connection with a pledge or

transfer of the Securities, including the preparation and filing of any required prospectus supplement under Rule 424(b)(3) of the Securities Act or other applicable provision of the Securities Act to appropriately amend the list of Selling Stockholders thereunder. Provided that the Company is in compliance with the terms of this Section 4.1(c), the Company’s indemnification obligations pursuant to Section 6.4 shall not extend to any Proceeding or Losses arising out of or related to this Section 4.1(c).

4.2 Furnishing of Information. Until the date that all Investors owning Shares, Warrants or Warrant Shares may sell all of them under Rule 144(b) of the Securities Act (or any successor provision) without compliance with Rule 144(c) of the Securities Act (or any successor provision), the Company covenants to 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 period, if the Company is not required to file reports pursuant to such laws, it will prepare and furnish to the Investors and make publicly available in accordance with Rule 144 such information as is required for the Investors to sell the Shares and Warrant Shares under Rule 144. The Company further covenants that it will take such further action as any holder of Securities may reasonably request to satisfy the provisions of this Section 4.2.

4.3 Integration. The Company shall not, and shall use its commercially reasonable efforts to ensure that no Affiliate thereof 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 would be integrated with the offer or sale of the Securities in a manner that would require the registration under the Securities Act of the sale of the Securities to the Investors or that would be integrated with the offer or sale of the Securities for purposes of the rules and regulations of any Trading Market.

4.4 Reservation of Securities. The Company shall maintain a reserve from its duly authorized shares of Common Stock for issuance pursuant to the Transaction Documents in such amount as may be required to fulfill its obligations to issue such Securities under the Transaction Documents. In the event that at any time the then authorized shares of Common Stock are insufficient for the Company to satisfy its obligations to issue such Securities under the Transaction Documents, the Company shall promptly take such actions as may be required to increase the number of authorized shares.

4.5 Securities Laws Disclosure; Publicity. The Company shall, at or before 9:00 a.m., New York time, on the first Trading Day following execution of this Agreement, issue a press release disclosing all material terms of the transactions contemplated hereby and shall file such press release as an exhibit to a Form 8-K. The Company shall reflect in such Form 8-K when so filed with the SEC such comments relating to such Investor as such Investor may reasonably propose. In the event such Form 8-K is not filed by the Company, the Investors shall each have the right to make a public disclosure, in the form of a press release, of the transactions contemplated hereby only upon the review and approval of such public disclosure by the Company, which such approval shall not be unreasonably withheld. Within four (4) Trading Days of the execution of this Agreement, the Company shall file a Current Report on Form 8-K with the SEC (the “8-K Filing”) describing the terms of the transactions contemplated by the Transaction Documents and including as exhibits to such Current Report on Form 8-K the

Transaction Documents (including the schedules and the names, and addresses of the Investors and the amount(s) of Securities respectively purchased) and the form of Warrants, in the form required by the Exchange Act. Thereafter, the Company shall timely file any filings and notices required by the SEC or applicable law with respect to the transactions contemplated hereby and provide copies thereof to the Investors promptly after filing. Except as herein provided, neither the Company nor any Subsidiary shall publicly disclose the name of any Investor, or include the name of any Investor in any press release without the prior written consent of such Investor (which consent shall not be unreasonably withheld or delayed), unless otherwise required by law, regulatory authority or Trading Market. Neither the Company nor any Subsidiary shall, nor shall any of their respective officers, directors, employees and agents, provide any Investor with any material nonpublic information regarding the Company or any Subsidiary from and after the issuance of the above referenced press release without the express written consent of such Investor.

4.6 Use of Proceeds. The Company intends to use the net proceeds from the sale of the Securities for working capital and general corporate purposes. The Company also may use a portion of the net proceeds, currently intended for general corporate purposes, to acquire or invest in technologies, products or services that complement its business, although the Company has no present plans or commitments and is not currently engaged in any material negotiations with respect to these types of transactions.

(a) Each Investor, for so long as it holds at least 50% of the sum of (i) the original number of Shares issued to such Investor under this Agreement and (ii) the number of Warrant Shares underlying the Warrants issued to such Investor under this Agreement, will have the right to purchase its pro rata share of any future offering by the Company of shares of capital stock of the Company or rights, options, or warrants to purchase shares of capital stock of the Company or securities of any type whatsoever that are, or may become, convertible into shares of capital stock of the Company on the terms and conditions of such financing; provided, that underwritten public offerings and Exempt Issuances will be excluded from this right. For purposes of the foregoing, the pro rata share of any Investor shall be equal to a fraction, the numerator of which is the number of Shares purchased by the Investor under this Agreement and the denominator of which is all of the outstanding shares of the Common Stock of the Company upon the consummation of the sale of Shares pursuant to this Agreement. This Section 4.7 shall terminate and cease to have any force or effect on such date as the Company shall have issued equity securities resulting in net proceeds to the Company equal to or in excess of $25 million in a single transaction after the date hereof, excluding Exempt Issuances.

(b) The Company shall provide each Investor notice at least five (5) Business Days in advance of the closing of any equity financing to which this Section 4.7 applies, which notice shall specify the terms and conditions of such financing. Each Investor shall notify the Company within such five (5) Business Day period if such Investor is electing to exercise its rights under this Section 4.7 with respect to such financing on such terms and conditions. Any Investor that fails to so notify the Company of such election within such five (5) Business Day period shall be deemed to have waived its rights under this Section 4.7 with respect to the financing described in the Company’s notice. Such waiver shall not affect such Investor’s rights to any additional equity financings to which this Section 4.7 applies.

(c) The Company shall have thirty (30) days from the expiration of the ten (10) Business Day offer period described above to offer, issue or sell all or any part of such offered securities as to which the Investors have not exercised their participation rights under this Section 4.7, but only upon terms and conditions that are not more favorable to the acquiring person or persons or less favorable to the Company than those set forth in the notice provided to the Investors by the Company pursuant to Section 4.7(b) hereof.

4.8 Equal Treatment of Investors. No consideration shall be offered or paid to any person to amend or consent to a waiver or modification of any provision of any of the Transaction Documents or in consideration of the exchange, redemption or repurchase of any Security unless the same consideration is also offered to all of the parties to the Transaction Documents. For clarification purposes, this provision constitutes a separate right granted to each Investor by the Company and negotiated separately by each Investor, and is intended for the Company to treat the Investors as a class and shall not in any way be construed as the Investors acting in concert or as a group with respect to the purchase, disposition or voting of Securities or otherwise.

4.9 Alternate Warrants. If the Board of Directors of the Company elects not to proceed with the transactions contemplated by the Transaction Documents for any reason other than a failure by the Investors to perform the conditions precedent set forth in Section 5.2, the Company shall promptly issue to the Investors, in the aggregate, a number of warrants (the “Alternate Warrants”) equal to 19.9% of the outstanding shares of Common Stock of the Company as of the date hereof. The Alternate Warrants shall be substantially in the form of the warrant attached hereto as Exhibit A except that the exercise price of the Alternate Warrants shall be equal to $0.34 per share. If issued, the Alternate Warrants shall be distributed to each Investor on a pro rata basis based upon a fraction, the numerator of which is equal to the amount of the aggregate Per Share Price committed to by the Investor and the denominator of which is equal to the Purchase Price.

5.1 Conditions Precedent to the Obligations of the Investors. The obligation of each Investor to acquire Securities at the Closing is subject to the satisfaction or waiver by such Investor, at or before the Closing, of each of the following conditions:

(a) Stockholder Approval. Prior to the Closing, the Company shall have received the Stockholder Approval.

(b) Representations and Warranties. The representations and warranties of the Company contained herein shall be true and correct in all material respects as of the date when made and as of the Closing as though made on and as of such date, other than with respect to representations and warranties of the Company which are qualified by materiality or by Material Adverse Effect, which shall be true and correct in all respects (provided, that any representation made “as of the date hereof” shall be deemed, for purposes of this section, to be made as of the Closing Date).

(c) Performance. The Company and each other Investor shall have performed, satisfied and complied in all material respects with all covenants, agreements and conditions required by the Transaction Documents to be performed, satisfied or complied with by it at or prior to the Closing, other than with respect to covenants, agreements and conditions of the Company which are qualified by materiality or by Material Adverse Effect, which shall be complied with in all respects.

(d) Consents. The Company shall have obtained in a timely fashion any and all consents, permits, approvals, registrations and waivers necessary for consummation of the purchase and sale of the Shares at the Closing, all of which shall be and remain so long as necessary in full force and effect.

(e) No Suspensions of Trading in Common Stock; Listing. Trading in the Common Stock shall not have been suspended by the SEC or any Trading Market (except for any suspensions of trading of not more than one Trading Day solely to permit dissemination of material information regarding the Company) at any time since the date of execution of this Agreement, and the Common Stock shall have been at all times since such date listed for trading on a Trading Market.

(f) Absence of Litigation. No action, suit or proceeding by or before any court or any governmental body or authority, against the Company or any Subsidiary or pertaining to the transactions contemplated by this Agreement or their consummation, shall have been instituted on or before the Closing Date, which action, suit or proceeding would, if determined adversely, reasonably be expected to have a Material Adverse Effect on the ability of the Company to consummate the transactions contemplated hereby.

(g) Company Deliverables. The Company shall have delivered the Company Deliverables in accordance with Section 2.2(a).

(h) No Change to Investors. There shall have been no change to the identity of the Investors, the number of Shares that each such Investor is purchasing under this Agreement or the aggregate amount of the Purchase Price.

5.2 Conditions Precedent to the Obligations of the Company. The obligation of the Company to sell the Securities at the Closing is subject to the satisfaction or waiver by the Company, at or before the Closing, of each of the following conditions:

(a) Representations and Warranties. The representations and warranties of the Investors contained herein shall be true and correct in all material respects as of the date when made and as of the Closing Date as though made on and as of such date, other than with respect to representations and warranties of the Investors which are qualified by materiality or by Material Adverse Effect, which shall be true and correct in all respects (provided, that any representation made “as of the date hereof” shall be deemed, for purposes of this section, to be made as of the Closing Date).

(b) Performance. The Investors shall have performed, satisfied and complied in all material respects with all covenants, agreements and conditions required by the Transaction Documents to be performed, satisfied or complied with by the Investors at or prior to the Closing, other than with respect to covenants, agreements and conditions of the Investors which are qualified by materiality or by Material Adverse Effect, which shall be complied with in all respects.

(c) Investors Deliverables. Such Investor shall have delivered its share of the Purchase Price in accordance with Section 2.2(b).

(a) As promptly as possible, and in any event on or prior to the Filing Date, the Company shall prepare and file with the SEC a Registration Statement covering the resale of all Registrable Securities for an offering to be made on a continuous basis pursuant to Rule 415; provided, however, that if at any time the SEC takes the position that the offering of some or all of the Registrable Securities in a Registration Statement is not eligible to be made on a delayed or continuous basis under the provisions of Rule 415 as a result of a characterization by the SEC of the transaction described by the Registration Statement as a primary offering by the Company, the Company shall use its Best Efforts to persuade the SEC that the offering contemplated by the Registration Statement is a valid secondary offering and not an offering “by or on behalf of the issuer” as defined in Rule 415. In the event that, despite the Company’s Best Efforts and compliance with the terms of this Section 6.1(a) the SEC refuses to alter its position, the Company shall, upon obtaining consent of the Investors, (i) remove from the Registration Statement such portion of the Registrable Securities (the “Cut Back Shares”) and/or (ii) agree to such restrictions and limitations on the registration and resale of the Registrable Securities as the SEC may require to assure the Company’s compliance with the requirements of Rule 415. Any Registrable Securities not able to be included in the Registration Statement shall reduce the number of Registrable Securities of each Investor covered by such Registration Statement on a pro-rata basis based on the number of Registrable Securities issued or issuable to each Investor, and the Company shall have no liability to any Investor pursuant to Section 6.1(d) or otherwise as a result of the filing of a Registration Statement covering less than all of the Registrable Securities under the circumstances described in this proviso. As soon as practicable following such intervening period of time as shall be required by the SEC prior to the filing thereof, the Company shall file one or more additional registration statements covering the resale of the Cut Back Shares. With regard to any such new Registration Statement, all of the provisions of this Section 6.1 shall again be applicable to the Cut Back Shares. For purposes of any such new Registration Statement, the Filing Date shall be deemed to be ten (10) Business Days after such intervening period of time as shall be required by the SEC prior to the filing thereof and the Required Effectiveness Date shall be deemed to be the date which is the earliest of (a) ninety (90) days after the filing thereof or (b) five (5) Trading Days after the Company receives notification from the SEC that such Registration Statement will not become subject to review. The Registration Statement 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 with the Securities Act and the Exchange Act) and shall contain (except if otherwise directed by the Investors or requested by the SEC) the “Plan of Distribution” in substantially the form attached hereto as Exhibit D (except if otherwise required pursuant to written comments received from the SEC upon a review of such Registration Statement).

(b) The Company shall use its reasonable Best Efforts to cause the Registration Statement to be declared effective by the SEC as promptly as possible after the filing thereof, but in any event prior to the Required Effectiveness Date, and shall use its reasonable Best Efforts to keep the Registration Statement continuously effective under the Securities Act until the earlier of the date that all Registrable Securities covered by such Registration Statement have been sold or can be sold publicly under Rule 144 without volume restrictions (the “Effectiveness Period”); provided that, upon notification by the SEC that a Registration Statement will not be reviewed or is no longer subject to further review and comments, the Company shall request acceleration of such Registration Statement within five (5) Trading Days after receipt of such notice and request that it become effective on 4:00 p.m. New York City time on the Effective Date and file a prospectus supplement for any Registration Statement, whether or not required under Rule 424 (or otherwise), by 9:00 a.m. New York City time the day after the Effective Date.

(c) The Company shall notify the Investors in writing promptly (and in any event within two (2) Trading Days) after receiving notification from the SEC that the Registration Statement has been declared effective.

(d) Should an Event (as defined below) occur, then upon the occurrence of such Event, and on every monthly anniversary thereof until the applicable Event is cured, the Company shall pay to each Investor an amount in cash, as liquidated damages and not as a penalty, as follows: after each Event, equal to one percent (1.0%) for the first month (or a pro rata portion thereof if less than a full month), and two percent (2.0%) for each month thereafter (or a pro rata portion thereof, if less than a full month), of (i) the number of Shares held by such Investor as of the date of such Event, multiplied by (ii) the Per Share Price; provided, however, that the total amount of payments pursuant to this Section 6.1(d) shall not exceed, when aggregated with all such payments paid to all Investors, ten percent (10%) of the aggregate purchase price of the Securities purchased pursuant to this Agreement. The payments to which an Investor shall be entitled pursuant to this Section 6.1(d) are referred to herein as “Event Payments.” Any Event Payments payable pursuant to the terms hereof shall apply on a pro rated basis for any portion of a month prior to the cure of an Event. In the event the Company fails to make Event Payments in a timely manner, such Event Payments shall bear interest at the rate of one percent (1.0%) per month (pro rated for partial months) until paid in full. All pro rated calculations made pursuant to this paragraph shall be based upon the actual number of days in such pro rated month. Notwithstanding the foregoing, the maximum payment to an Investor associated with all Events in the aggregate shall not exceed (i) in any thirty (30)-day period, an aggregate of two percent (2.0%) of the purchase price paid by such Investor for its Shares then held (plus interest accrued thereon, if applicable) and (ii) ten percent (10.0%) of the purchase paid by such Investor for its Shares then held.

(ii) the Registration Statement is not declared effective on or prior to the Required Effectiveness Date;

(iii) except as provided for in Section 6.1(e) (the “Excluded Events”), after the Effective Date and during the Effectiveness Period, an Investor is not permitted to sell Registrable Securities under the Registration Statement (or a subsequent Registration Statement filed in replacement thereof) for any reason (other than the fault of such Investor) for three (3) or more Trading Days (whether or not consecutive);

(iv) except as a result of the Excluded Events, the Common Stock is not listed or quoted, or is suspended from trading, on an Eligible Market for a period of three (3) Trading Days (which need not be consecutive Trading Days) during the Effectiveness Period;

(v) with respect to an Investor, the Company fails for any reason to deliver a certificate evidencing any Securities to such Investor within five (5) Trading Days after delivery of such certificate is required pursuant to any Transaction Document or the exercise rights of the Investors pursuant to the Warrants are otherwise suspended for any reason; or

(vi) during the Effectiveness Period, except as a result of the Excluded Events, the Company fails to have any Shares listed or quoted on an Eligible Market.

(e) Notwithstanding anything in this Agreement to the contrary, the Company may, by written notice to the Investors, suspend sales under a Registration Statement after the Effective Date thereof and/or require that the Investors immediately cease the sale of shares of Common Stock pursuant thereto and/or defer the filing of any subsequent Registration Statement if the Board of Directors determines in good faith that (A) it would be materially detrimental to the Company (other than as relating solely to the price of the Common Stock) to maintain a Registration Statement at such time or (B) it is in the best interests of the Company to suspend sales under such registration at such time. Upon receipt of such notice, each Investor shall immediately discontinue any sales of Registrable Securities pursuant to such registration until such Investor is advised in writing by the Company that the current Prospectus or amended Prospectus, as applicable, may be used. In no event, however, shall this right be exercised to suspend sales beyond the period during which (in the good faith determination of the Company’s Board of Directors) the failure to require such suspension would be materially detrimental to the Company. The Company’s rights under this Section 6(e) may be exercised for a period of no more than thirty (30) Trading Days at a time (which may be consecutive) and not more than three (3) times in any twelve (12)-month period, without such suspension being considered as part of an Event Payment determination. Immediately after the end of any suspension period under this Section 6(e), the Company shall take all necessary actions (including filing any required supplemental prospectus) to restore the effectiveness of the applicable Registration Statement and the ability of the Investors to publicly resell their Registrable Securities pursuant to such effective Registration Statement.

(f) The Company shall not, from the date hereof until the Effective Date of the Registration Statement, prepare and file with the SEC a registration statement relating to an offering for its own account or the account of others under the Securities Act of any of its equity securities, other than any registration statement or post-effective amendment to a registration statement (or supplement thereto) relating to the Company’s employee benefit plans registered on Form S-8.

6.2 Registration Procedures. In connection with the Company’s registration obligations hereunder, the Company shall:

(a) Not less than five (5) Trading Days prior to the filing of a Registration Statement or any related Prospectus or any amendment or supplement thereto, furnish via email to those Investors who have supplied the Company with email addresses copies of all such documents proposed to be filed, which documents (other than any document that is incorporated or deemed to be incorporated by reference therein) will be subject to the review of such Investors. The Company shall reflect in each such document when so filed with the SEC such comments regarding the Investors and the plan of distribution as the Investors may reasonably and promptly propose no later than four (4) Trading Days after the Investors have been so furnished with copies of such documents as aforesaid.

(b) (i) Subject to Section 6.1(e), prepare and file with the SEC such amendments, including post-effective amendments, to each Registration Statement and the Prospectus used in connection therewith as may be necessary to keep the Registration Statement continuously effective, as to the applicable Registrable Securities for the Effectiveness Period and prepare and file with the SEC 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, and in any event within twelve (12) Trading Days (except to the extent that the Company reasonably requires additional time to respond to accounting comments), to any comments received from the SEC with respect to any Registration Statement or any amendment thereto; and (iv) comply in all material respects with the provisions of the Securities Act and the Exchange Act with respect to the disposition of all Registrable Securities covered by a Registration Statement during the applicable period in accordance with the intended methods of disposition by the Investors thereof set forth in the Registration Statement as so amended or in such Prospectus as so supplemented.

(c) Notify the Investors as promptly as reasonably possible, and (if requested by the Investors confirm such notice in writing no later than two (2) Trading Days thereafter) of any of the following events: (i) the SEC notifies the Company whether there will be a “review” of any Registration Statement; (ii) the SEC comments in writing on any Registration Statement; (iii) any Registration Statement or any post-effective amendment is declared effective; (iv) the SEC or any other Federal or state governmental authority requests any amendment or supplement to any Registration Statement or Prospectus or requests

additional information related thereto; (v) the SEC issues any stop order suspending the effectiveness of any Registration Statement or initiates any Proceedings for that purpose; (vi) the Company receives notice of any suspension of the qualification or exemption from qualification of any Registrable Securities for sale in any jurisdiction, or the initiation or threat of any Proceeding for such purpose; or (vii) the financial statements included in any Registration Statement become ineligible for inclusion therein or any Registration Statement or Prospectus or other document contains any untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(d) Use its commercially reasonable efforts to avoid the issuance of or, if issued, obtain the withdrawal of (i) any order suspending the effectiveness of any Registration Statement, or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction, as soon as possible.

(e) If requested by an Investor, provide such Investor without charge, at least one conformed copy of each Registration Statement and each amendment thereto, including financial statements and schedules, and all exhibits to the extent requested by such Person (including those previously furnished or incorporated by reference) promptly after the filing of such documents with the SEC.

(f) Promptly deliver to each Investor, without charge, as many copies of the Prospectus or Prospectuses (including each form of prospectus) and each amendment or supplement thereto as such Persons may reasonably request. The Company hereby consents to the use of such Prospectus and each amendment or supplement thereto by each of the selling Investors in connection with the offering and sale of the Registrable Securities covered by such Prospectus and any amendment or supplement thereto to the extent permitted by federal and state securities laws and regulations.

(g) (i) In the time and manner required by each Trading Market, prepare and file with such Trading Market an additional shares listing application covering all of the Registrable Securities; (ii) take all steps necessary to cause such Shares and Warrant Shares to be approved for listing on each Trading Market as soon as possible thereafter; (iii) provide to each Investor evidence of such listing; and (iv) except as a result of the Excluded Events, during the Effectiveness Period, maintain the listing of such Shares and Warrant Shares on each such Trading Market or another Eligible Market.

(h) Prior to any public offering of Registrable Securities, use its Best Efforts to register or qualify or cooperate with the selling Investors 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 such jurisdictions within the United States as any Investor requests in writing, to keep each such registration or qualification (or exemption therefrom) effective for so long as required, but not to exceed the duration of the Effectiveness Period, and to do any and all other acts or things reasonably necessary or advisable to enable the disposition in such jurisdictions of the Registrable Securities covered by a Registration Statement; provided, however, that the

Company shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject.

(i) Cooperate with the Investors to facilitate the timely preparation and delivery of certificates representing Registrable Securities to be delivered to a transferee pursuant to a Registration Statement, which certificates shall be free, to the extent permitted by this Agreement and under law, of all restrictive legends, and to enable such certificates to be in such denominations and registered in such names as any such Investors may reasonably request.

(j) Upon the occurrence of any event described in Section 6.2(c)(vii), as promptly as reasonably possible, prepare a supplement or amendment, including a post-effective amendment, to the Registration Statement 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, neither the Registration Statement nor such 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 the light of the circumstances under which they were made, not misleading.

(k) Cooperate with any reasonable due diligence investigation undertaken by the Investors in connection with the sale of Registrable Securities, including, without limitation, by making available documents and information; provided that the Company will not deliver or make available to any Investor material, nonpublic information unless such Investor requests in advance in writing to receive material, nonpublic information and agrees to keep such information confidential.

(l) Comply with all rules and regulations of the SEC applicable to the registration of the Securities.

(m) It shall be a condition precedent to the obligations of the Company to complete the registration pursuant to this Agreement with respect to the Registrable Securities of any particular Investor or to make any Event Payments set forth in Section 6.1(d) to such Investor that such Investor furnish to the Company the information specified in Exhibits B-1, B-2 and B-3 hereto and such other information regarding itself, the Registrable Securities and other shares of Common Stock held by it and the intended method of disposition of the Registrable Securities held by it (if different from the Plan of Distribution set forth on Exhibit D hereto) as shall be reasonably required to effect the registration of such Registrable Securities and shall complete and execute such documents in connection with such registration as the Company may reasonably request.

(n) The Company shall comply with all applicable rules and regulations of the SEC under the Securities Act and the Exchange Act, including, without limitation, Rule 172 under the Securities Act, file any final Prospectus, including any supplement or amendment thereof, with the SEC pursuant to Rule 424 under the Securities Act, promptly inform the Investors in writing if, at any time during the Effectiveness Period, the Company does not

satisfy the conditions specified in Rule 172 and, as a result thereof, the Investors are required to make available a Prospectus in connection with any disposition of Registrable Securities and take such other actions as may be reasonably necessary to facilitate the registration of the Registrable Securities hereunder.

6.3 Registration Expenses. The Company shall pay all fees and expenses incident to the performance of or compliance with Article VI of this Agreement by the Company, including without limitation (a) all registration and filing fees and expenses, including without limitation those related to filings with the SEC, any Trading Market and in connection with applicable state securities or Blue Sky laws, (b) printing expenses (including without limitation expenses of printing certificates for Registrable Securities), (c) messenger, telephone and delivery expenses, (d) fees and disbursements of counsel for the Company, (e) fees and expenses of all other Persons retained by the Company in connection with the consummation of the transactions contemplated by this Agreement, and (f) all listing fees to be paid by the Company to the Trading Market.

(a) Indemnification by the Company. The Company shall, notwithstanding any termination of this Agreement, indemnify and hold harmless each Investor, the officers, directors, partners, members, agents and employees of each of them, each Person who controls any such Investor (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers, directors, partners, managers, members, agents and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and all Losses, as incurred, arising out of or relating to (i) any breach of any covenant, agreement or obligation of the Company contained in the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby or (ii) any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any Prospectus or any form of Company prospectus or in any amendment or supplement thereto or in any Company preliminary prospectus, 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 the light of the circumstances under which they were made) not misleading, except to the extent, but only to the extent, that (A) such untrue statements, alleged untrue statements, omissions or alleged omissions are based solely upon information regarding such Investor furnished in writing to the Company by such Investor for use therein, or to the extent that such information relates to such Investor or such Investor’s proposed method of distribution of Registrable Securities and was reviewed and expressly approved by such Investor in writing expressly for use in the Registration Statement, or (B) with respect to any prospectus, if the untrue statement or omission of material fact contained in such prospectus was corrected on a timely basis in the prospectus, as then amended or supplemented, if such corrected prospectus was timely made available by the Company to the Investor, and the Investor seeking indemnity hereunder was advised in writing not to use the incorrect prospectus prior to the use giving rise to Losses.

(b) Indemnification by Investors. Each Investor shall, severally and not jointly, indemnify and hold harmless the Company and its directors, officers, agents and employees to the fullest extent permitted by applicable law, from and against all Losses (as

determined by a court of competent jurisdiction in a final judgment not subject to appeal or review) arising solely out of any untrue statement of a material fact contained in the Registration Statement, any Prospectus, or any form of prospectus, or in any amendment or supplement thereto, or arising out of or relating to 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 form of prospectus or supplement thereto, in the light of the circumstances under which they were made) not misleading, but only to the extent that (i) such untrue statements or omissions are based solely upon information regarding such Investor furnished to the Company by such Investor in writing expressly for use therein, or to the extent that such information relates to such Investor or such Investor’s proposed method of distribution of Registrable Securities and was reviewed and expressly approved in writing by such Investor expressly for use in the Registration Statement (it being understood that the information provided by the Investor to the Company in Exhibits B-1, B-2 and B-3 and the Plan of Distribution set forth on Exhibit D, as the same may be modified by such Investor constitutes information reviewed and expressly approved by such Investor in writing expressly for use in the Registration Statement), such Prospectus or such form of prospectus or in any amendment or supplement thereto. In no event shall the liability of any selling Investor hereunder be greater in amount than the dollar amount of the net proceeds received by such Investor 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 have the right to 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 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: (i) the Indemnifying Party has agreed in writing to pay such fees and expenses; or (ii) 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 (iii) 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 reasonably satisfactory to the indemnifying party 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 the reasonable fees and expenses of separate counsel shall be at the expense of the Indemnifying Party). It shall be understood, however, that the Indemnifying Party shall not, in connection with any one such Proceeding (including separate Proceedings that have

been or will be consolidated before a single judge) be liable for the fees and expenses of more than one separate firm of attorneys at any time for all Indemnified Parties, which firm shall be appointed by a majority of the Indemnified Parties. 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.

All reasonable 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 twenty (20) 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).

(d) Contribution. If the indemnification under Section 6.4(a) or (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 6.4(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.

(e) The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 6.4(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 6.4(d), no Investor shall be required to contribute, in the aggregate, any amount in excess of the amount by which the net proceeds actually received by such Investor from the sale of the Registrable Securities subject to the Proceeding exceed the amount of any damages that such Investor 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.

(f) The indemnity and contribution agreements contained in this Section are in addition to any liability that the Indemnifying Parties may have to the Indemnified Parties.

6.5 Dispositions. Each Investor 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 and shall sell its Registrable Securities in accordance with the Plan of Distribution set forth in the Prospectus. Each Investor further agrees that, upon receipt of a notice from the Company of the occurrence of any event of the kind described in Sections 6.2(c)(v), (vi) or (vii), such Investor will discontinue disposition of such Registrable Securities under the Registration Statement until such Investor is advised in writing by the Company that the use of the Prospectus, or amended Prospectus, as applicable, may be resumed. The Company may provide appropriate stop orders to enforce the provisions of this paragraph. Each Investor, severally and not jointly with the other Investors, agrees that the removal of the restrictive legend from certificates representing Securities as set forth in this Section 4.1 is predicated upon the Company’s reliance that the Investor will comply with the provisions of this subsection. Both the Company and the Transfer Agent, and their respective directors, officers, employees and agents, may rely on this subsection.

6.6 No Piggyback on Registrations. Neither the Company nor any of its security holders (other than the Investors in such capacity pursuant hereto and the Excluded Investors) may include securities of the Company in the Registration Statement other than the Registrable Securities.

7.1 Termination. This Agreement may be terminated by the Company or any Investor, by written notice to the other parties, if between the date hereof and the Closing: (A) the Company shall have breached any of its representations, warranties, covenants or obligations contained herein, which breach would result in the failure to satisfy any condition set forth in Section 5.1 at the time of the Closing and which the Company would be incapable of curing prior to the Closing Date, (B) the Stockholder Approval shall not have been obtained by the date that is ninety-one (91) days after the date hereof or (C) the Closing shall not have been consummated on or before the date that is ten (10) Trading Days after the date that the Company obtains the Stockholder Approval; provided, however, that no such termination will affect the right of any party to sue for any breach by the other party (or parties). The Company and the Investor(s) may extend the termination of this Agreement by mutual written agreement.

7.2 Fees and Expenses. Except as expressly set forth in the Transaction Documents to the contrary, each party shall pay the fees and expenses of its advisers, counsel, accountants and other experts, if any, and all other expenses incurred by such party incident to the negotiation, preparation, execution, delivery and performance of this Agreement; provided, however, that if (i) the Company fails to hold the Stockholder Meeting within ninety (90) days from the date hereof

or (ii) the Stockholder Approval is not obtained at the Stockholder Meeting, the Company shall reimburse the Investors for their reasonable fees and expenses, including fees of their advisers, counsel, accountants and other experts, if any, actually incurred incident to the negotiation, execution, delivery and performance of the Transaction Documents; provided, further, however, that the Company shall not be obligated to reimburse any individual Investor more than $10,000 under this Section 7.2. The Company shall pay all Transfer Agent fees, stamp taxes and other taxes and duties levied in connection with the sale and issuance of the applicable Securities.

7.3 Entire Agreement. The Transaction Documents, together with the Exhibits and Schedules thereto, contain the entire understanding of the parties with respect to the subject matter hereof and supersede all prior agreements and understandings, oral or written, with respect to such matters, which the parties acknowledge have been merged into such documents, exhibits and schedules. At or after the Closing, and without further consideration, the Company will execute and deliver to the Investors such further documents as may be reasonably requested in order to give practical effect to the intention of the parties under the Transaction Documents.

7.4 Notices. Any and all notices or other communications or deliveries required or permitted to be provided hereunder shall be in writing and shall be deemed given and effective on the earliest of (a) the date of transmission, if such notice or communication is delivered via facsimile or email at the facsimile number or email address specified in this Section prior to 6:30 p.m. (New York City time) on a Trading Day, (b) the next Trading Day after the date of transmission, if such notice or communication is delivered via facsimile or email at the facsimile number or email address specified in this Section on a day that is not a Trading Day or later than 6:30 p.m. (New York City time) on any Trading Day, (c) the Trading Day following the date of deposit with a nationally recognized overnight courier service, or (d) upon actual receipt by the party to whom such notice is required to be given. The addresses, facsimile numbers and email addresses for such notices and communications are those set forth on the signature pages hereof, or such other address or facsimile number as may be designated in writing hereafter, in the same manner, by any such Person.

7.5 Amendments; Waivers. No provision of this Agreement may be waived or amended except in a written instrument signed, in the case of an amendment, by the Company and each of the Investors or, in the case of a waiver, by the party against whom enforcement of any such waiver is sought. 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 any party to exercise any right hereunder in any manner impair the exercise of any such right. Notwithstanding the foregoing, a waiver or consent to depart from the provisions hereof with respect to a matter that relates exclusively to the rights of Investors under Article VI may be given by Investors holding at least a majority of the Registrable Securities to which such waiver or consent relates.

7.6 Construction. The headings herein are for convenience only, do not constitute a part of this Agreement and shall not be deemed to limit or affect any of the provisions hereof. The language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party.

7.7 Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties and their successors and permitted assigns. The Company may not assign this Agreement or any rights or obligations hereunder without the prior written consent of the Investors. Any Investor may assign its rights under this Agreement to any Person to whom such Investor assigns or transfers any Securities; provided, (i) such transferor agrees in writing with the transferee or assignee to assign such rights, and a copy of such agreement is furnished to the Company after such assignment, (ii) the Company is furnished with written notice of (x) the name and address of such transferee or assignee and (y) the Registrable Securities with respect to which such registration rights are being transferred or assigned, (iii) following such transfer or assignment, the further disposition of such securities by the transferee or assignee is restricted under the Securities Act and applicable state securities laws, (iv) such transferee agrees in writing to be bound, with respect to the transferred Securities, by the provisions hereof that apply to the “Investors” and (v) such transfer shall have been made in accordance with the applicable requirements of this Agreement and with all laws applicable thereto.

7.8 No Third-Party Beneficiaries. This Agreement is intended for the benefit of the parties hereto and their respective successors and permitted assigns and is not for the benefit of, nor may any provision hereof be enforced by, any other Person, except that each Indemnified Party is an intended third party beneficiary of Section 6.4 and (in each case) may enforce the provisions of such Section directly against the parties with obligations thereunder.

7.9 Governing Law; Venue; Waiver of Jury Trial. THE CORPORATE LAWS OF THE STATE OF DELAWARE SHALL GOVERN ALL ISSUES CONCERNING THE RELATIVE RIGHTS OF THE COMPANY AND ITS STOCKHOLDERS. ALL QUESTIONS CONCERNING THE CONSTRUCTION, VALIDITY, ENFORCEMENT AND INTERPRETATION OF THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. THE COMPANY AND INVESTORS HEREBY IRREVOCABLY SUBMIT TO THE NON-EXCLUSIVE JURISDICTION OF THE STATE AND FEDERAL COURTS SITTING IN THE CITY OF NEW YORK, BOROUGH OF MANHATTAN FOR THE ADJUDICATION OF ANY DISPUTE BROUGHT BY THE COMPANY OR ANY INVESTOR HEREUNDER, IN CONNECTION HEREWITH OR WITH ANY TRANSACTION CONTEMPLATED HEREBY OR DISCUSSED HEREIN (INCLUDING WITH RESPECT TO THE ENFORCEMENT OF ANY OF THE TRANSACTION DOCUMENTS), AND HEREBY IRREVOCABLY WAIVE, AND AGREE NOT TO ASSERT IN ANY SUIT, ACTION OR PROCEEDING BROUGHT BY THE COMPANY OR ANY INVESTOR, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE JURISDICTION OF ANY SUCH COURT, OR THAT SUCH SUIT, ACTION OR PROCEEDING IS IMPROPER. EACH PARTY HEREBY IRREVOCABLY WAIVES PERSONAL SERVICE OF PROCESS AND CONSENTS TO PROCESS BEING SERVED IN ANY SUCH SUIT, ACTION OR PROCEEDING BY MAILING A COPY THEREOF VIA REGISTERED OR CERTIFIED MAIL OR OVERNIGHT DELIVERY (WITH EVIDENCE OF DELIVERY) TO SUCH PARTY AT THE ADDRESS IN EFFECT FOR NOTICES TO IT UNDER THIS AGREEMENT AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE OF PROCESS AND NOTICE THEREOF. NOTHING CONTAINED HEREIN SHALL BE DEEMED TO LIMIT IN ANY WAY ANY RIGHT TO SERVE PROCESS IN ANY MANNER PERMITTED BY LAW. THE COMPANY AND INVESTORS HEREBY WAIVE ALL RIGHTS TO A TRIAL BY JURY.

7.10 Survival. The representations and warranties, agreements and covenants contained herein shall survive the Closing.

7.11 Execution. This Agreement may be executed in two (2) or more counterparts, all of which when taken together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both parties need not sign the same counterpart. In the event that any signature is delivered by facsimile transmission or email attachment, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such facsimile or email-attached signature page were an original thereof.

7.12 Severability. If any provision of this Agreement is held to be invalid or unenforceable in any respect, the validity and enforceability of the remaining terms and provisions of this Agreement shall not in any way be affected or impaired thereby and the parties will attempt to agree upon a valid and enforceable provision that is a reasonable substitute therefor, and upon so agreeing, shall incorporate such substitute provision in this Agreement.

7.13 Rescission and Withdrawal Right. Notwithstanding anything to the contrary contained in (and without limiting any similar provisions of) the Transaction Documents, whenever any Investor exercises a right, election, demand or option owed to such Investor by the Company under a Transaction Document and the Company does not timely perform its related obligations within the periods therein provided, then, prior to the performance by the Company of the Company’s related obligation, such Investor may rescind or withdraw, in its sole discretion from time to time upon written notice to the Company, any relevant notice, demand or election in whole or in part without prejudice to its future actions and rights.

7.14 Replacement of Securities. If any certificate or instrument evidencing any Securities 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 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 for any losses in connection therewith. 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 Securities.

7.15 Remedies. In addition to being entitled to exercise all rights provided herein or granted by law, including recovery of damages, each of the Investors and the Company will be entitled to seek specific performance under the Transaction Documents. The parties agree that monetary damages may not be adequate compensation for any loss incurred by reason of any breach of obligations described in the foregoing sentence and hereby agree to waive in any action for specific performance of any such obligation (other than in connection with any action for a temporary restraining order) the defense that a remedy at law would be adequate.

7.16 Payment Set Aside. To the extent that the Company makes a payment or payments to any Investor hereunder or any Investor enforces or exercises its rights hereunder, and such payment or payments or the proceeds of such enforcement or exercise or any part thereof are subsequently invalidated, declared to be fraudulent or preferential, set aside, recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company by a trustee, receiver or any other person under any law (including, without limitation, any bankruptcy law, state or federal law, common law or equitable cause of action), then to the extent of any such restoration the obligation or part thereof originally intended to be satisfied shall be revived and continued in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred.

7.17 Adjustments in Share Numbers and Prices. In the event of any stock split, subdivision, dividend or distribution payable in shares of Common Stock (or other securities or rights convertible into, or entitling the holder thereof to receive directly or indirectly shares of Common Stock), combination or other similar recapitalization or event occurring after the date hereof, each reference in any Transaction Document to a number of shares or a price per share shall be amended to appropriately account for such event.

7.18 Independent Nature of Investors’ Obligations and Rights. The obligations of each Investor under any Transaction Document are several and not joint with the obligations of any other Investor, and no Investor shall be responsible in any way for the performance of the obligations of any other Investor under any Transaction Documents. The decision of each Investor to purchase Securities pursuant to this Agreement has been made by such Investor independently of any other Investor and independently of any information, materials, statements or opinions as to the business, affairs, operations, assets, properties, liabilities, results of operations, condition (financial or otherwise) or prospects of the Company which may have been made or given by any other Investor or by any agent or employee of any other Investor, and no Investor or any of its agents or employees shall have any liability to any other Investor (or any other person) relating to or arising from any such information, materials, statements or opinions. Nothing contained herein or in any Transaction Document, and no action taken by any Investor pursuant thereto, shall be deemed to constitute the Investors as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Investors are in any way acting in concert or as a group with respect to such obligations or the transactions contemplated by the Transaction Document. Each Investor acknowledges that no other Investor has acted as agent for such Investor in connection with making its investment hereunder and that no other Investor will be acting as agent of such Investor in connection with monitoring its investment hereunder. Each Investor shall be entitled to independently protect and enforce its rights, including without limitation the rights arising out of this Agreement or out of the other Transaction Documents, and it shall not be necessary for any other Investor to be joined as an additional party in any Proceeding for such purpose.

IN WITNESS WHEREOF, the parties hereto have caused this Securities Purchase Agreement to be duly executed by their respective authorized signatories as of the date first indicated above.


THRESHOLD PHARMACEUTICALS, INC.

By:
Name:
Title:

Address for Notice:

1300 Seaport Boulevard Redwood City, CA 94063 Tel: (650) 474-8200 Fax: (650) 474-2529 Attn: Joel A. Fernandes, Senior Director, Finance and Controller

With a copy to:

Morrison & Foerster LLP 755 Page Mill Road Palo Alto, California 94304 Tel: (650) 813-5640 Fax: (650) 494-0792 Attn: Stephen B. Thau, Esq.

By its execution and delivery of this signature page, the undersigned Investor hereby joins in and agrees to be bound by the terms and conditions of the Securities Purchase Agreement dated as of July 9, 2008 (the “Purchase Agreement”) by and among Threshold Pharmaceuticals, Inc. and the Investors (as defined therein), as to the number of shares of Common Stock and Warrants set forth below, and authorizes this signature page to be attached to the Purchase Agreement or counterparts thereof.

Telephone No.: ___________________________

Facsimile No.: ____________________________

Email Address: ___________________________

Number of Shares: ________________________

Number of Warrants: ______________________

Purchase Price: $__________________________

In connection with the Registration Statement, please provide us with the following information regarding the Investor.

1. Please state your organization’s name exactly as it should appear in the Registration Statement:

________________________________________________________________________________________________

Except as set forth below, your organization does not hold any equity securities of the Company on behalf of another person or entity.

________________________________________________________________________________________________

If the Investor is not a natural person, please identify the natural person or persons who will have voting and investment control over the Securities owned by the Investor:

________________________________________________________________________________________________

3. Have you or your organization had any position, office or other material relationship within the past three years with the Company or its affiliates? (Include any relationships involving you or any

of your affiliates, officers, directors, or principal equity holders (5% or more) that has held any position or office or has had any other material relationship with the Company (or its predecessors or affiliates) during the past three years.)

4. Are you the beneficial owner of any other securities of the Company? (Include any equity securities that you beneficially own or have a right to acquire within sixty (60) days after the date hereof, and as to which you have sole voting power, shared voting power, sole investment power or shared investment power.)

If yes, please describe the nature and amount of such ownership as of a recent date.

5. Except as set forth below, you wish that all the shares of the Company’s common stock beneficially owned by you or that you have the right to acquire from the Company be offered for your account in the Registration Statement.

6. Have you made or are you aware of any arrangements relating to the distribution of the shares of the Company pursuant to the Registration Statement?

(a) State below whether (i) you or any associate or affiliate of yours are a member of the FINRA, a controlling shareholder of an FINRA member, a person associated with a member, a direct or indirect affiliate of a member, or an underwriter or related person with respect to the proposed offering; (ii) you or any associate or affiliate of yours owns any stock or other securities of any FINRA member not purchased in the open market; or (iii) you or any associate or affiliate of yours has made any outstanding subordinated loans to any FINRA member. If you are a general or limited partnership, a no answer asserts that no such relationship exists for you as well as for each of your general or limited partners.

If “yes,” please identify the FINRA member and describe your relationship, including, in the case of a general or limited partner, the name of the partner:

(b) State below whether you or any associate or affiliate of yours has been an underwriter, or a controlling person or member of any investment banking or brokerage firm which has been or might be an underwriter for securities of the Corporation or any affiliate thereof including, but not limited to, the common stock now being registered.

If “yes,” please identify the FINRA member and describe your relationship, including, in the case of a general or limited partner, the name of the partner.

The undersigned hereby agrees to notify the Company promptly of any changes in the foregoing information which should be made as a result of any developments, including the passage of time. The undersigned also agrees to provide the Company and the Company’s counsel any and all such further information regarding the undersigned promptly upon request in connection with the preparation, filing, amending, and supplementing of the Registration Statement (or any prospectus contained therein). The undersigned hereby consents to the use of all such information in the Registration Statement.

The undersigned understands and acknowledges that the Company will rely on the information set forth herein for purposes of the preparation and filing of the Registration Statement.

The undersigned understands that the undersigned may be subject to serious civil and criminal liabilities if the Registration Statement, when it becomes effective, either contains an untrue statement of a material fact or omits to state a material fact required to be stated in the Registration Statement or necessary to make the statements in the Registration Statement not misleading. The undersigned represents and warrants that all information it provides to the Company and its counsel is currently accurate and complete and will be accurate and complete at the time the Registration Statement becomes effective and at all times subsequent thereto, and agrees during the Effectiveness Period and any additional period in which the undersigned is making sales of Shares under and pursuant to the Registration Statement, and agrees during such periods to notify the Company immediately of any misstatement of a material fact in the Registration Statement, and of the omission of any material fact necessary to make the statements contained therein not misleading.

If the Investor is a corporation, partnership, limited liability company, trust, pension plan, foundation, joint Investor (other than a married couple) or other entity, an authorized officer, partner, or trustee must complete, date and sign this Certificate.

The undersigned certifies that the representations and responses below are true and accurate:

(a) The Investor has been duly formed and is validly existing and has full power and authority to invest in the Company. The person signing on behalf of the undersigned has the authority to execute and deliver the Securities Purchase Agreement on behalf of the Investor and to take other actions with respect thereto.

¨ Revocable Trust (identify each grantor and indicate under what circumstances the trust is revocable by the grantor): __________________________________________________________________________________________ __________________________________________________________________________________________________

¨ Other type of Trust (indicate type of trust and, for trusts other than pension trusts, name the grantors and beneficiaries): _____________________________________________________________________________________ __________________________________________________________________________________________________

¨ Other form of organization (indicate form of organization (__________________________________________

_________________________________________________________________________________________________).

(d) In order for the Company to offer and sell the Securities in conformance with state and federal securities laws, the following information must be obtained regarding your investor status. Please initial each category applicable to you as an investor in the Company.

Please set forth in the space provided below the (i) states, if any, in the U.S. in which you maintained your principal office during the past two years and the dates during which you maintained your office in each state, (ii) state(s), if any, in which you are incorporated or otherwise organized and (iii) state(s), if any, in which you pay income taxes.

The selling stockholders may, from time to time, sell any or all of their shares of common stock on any stock exchange, market or trading facility on which the shares are traded or in private transactions. These sales may be at fixed or negotiated prices. The selling stockholders may use any one or more of the following methods when selling shares:

The selling stockholders may also sell shares under Rule 144 under the Securities Act, if available, rather than under this prospectus.

Broker-dealers engaged by the selling stockholders may arrange for other brokers-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the selling stockholders (or, if any broker-dealer acts as agent for the purchaser of shares, from the purchaser) in amounts to be negotiated. The selling stockholders do not expect these commissions and discounts to exceed what is customary in the types of transactions involved. Any profits on the resale of shares of common stock by a broker-dealer acting as principal might be deemed to be underwriting discounts or commissions under the Securities Act. Discounts, concessions, commissions and similar selling expenses, if any, attributable to the sale of shares will be borne by a selling stockholder. The selling stockholders may agree to indemnify any agent, dealer or broker-dealer that participates in transactions involving sales of the shares if liabilities are imposed on that person under the Securities Act.

The selling stockholders may from time to time pledge or grant a security interest in some or all of the shares of common stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of common stock from time to time under this prospectus after we have filed a supplement to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act of 1933 supplementing or amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus.

The selling stockholders also may transfer the shares of common stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus and may sell the shares of common stock from time to time under this prospectus after we have filed a supplement to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act of 1933 supplementing or amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus.

The selling stockholders and any broker-dealers or agents that are involved in selling the shares of common stock may be deemed to be “underwriters” within the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on the resale of the shares of common stock purchased by them may be deemed to be underwriting commissions or discounts under the Securities Act.

We are required to pay all fees and expenses incident to the registration of the shares of common stock. We have agreed to indemnify the selling stockholders against certain losses, claims, damages and liabilities, including liabilities under the Securities Act.

The selling stockholders have advised us that they have not entered into any agreements, understandings or arrangements with any underwriters or broker-dealers regarding the sale of their shares of common stock, nor is there an underwriter or coordinating broker acting in connection with a proposed sale of shares of common stock by any selling stockholder. If we are notified by any selling stockholder that any material arrangement has been entered into with a broker-dealer for the sale of shares of common stock, if required, we will file a supplement to this prospectus. If the selling stockholders use this prospectus for any sale of the shares of common stock, they will be subject to the prospectus delivery requirements of the Securities Act.

The anti-manipulation rules of Regulation M under the Securities Exchange Act of 1934 may apply to sales of our common stock and activities of the selling stockholders.


		Please provide us with the following information:

1.		The exact name that the Securities are to be registered in (this is the name that will appear on the stock and warrant certificate(s)). You may use a nominee name if appropriate:

2.		The relationship between the Investor of the Securities and the Registered Holder listed in response to item 1 above:

3.		The mailing address, telephone and telecopy number and email address of the Registered Holder listed in response to item 1 above:









4.		The Tax Identification Number of the Registered Holder listed in response to item 1 above:


Yes: ¨		No: ¨


Yes: ¨		No: ¨