UNDERWRITING AGREEMENT

February 6, 2007

UBS Securities LLC
    as Managing Underwriter
299 Park Avenue
New York, New York 10171-0026

Ladies and Gentlemen:

Conceptus, Inc., a Delaware corporation (the “ Company ”), proposes to issue and sell to the underwriters named in Schedule A annexed hereto (the “ Underwriters ”), for whom you are acting as representative, $75,000,000 aggregate principal amount of its 2.25% Convertible Senior Notes due 2027 (the “ Firm Notes ”).  In addition, solely for the purpose of covering over-allotments, the Company proposes to grant to the Underwriters the option to purchase from the Company up to an additional $11,250,000 aggregate principal amount of the Company’s 2.25% Convertible Senior Notes due 2027 (the “ Additional Notes ”).  The Firm Notes and the Additional Notes are hereinafter collectively sometimes referred to as the “ Notes .”

The Notes are to be issued pursuant to an indenture to be dated as of February 12, 2007, between the Company and Wells Fargo, N.A., as trustee (the “ Trustee ”), as supplemented by a supplemental indenture to be dated as of February 12, 2007, between the Company and the Trustee (such indenture, as supplemented, the “ Indenture ”).  The Notes will be convertible in accordance with their terms and the terms of the Indenture into cash and, if applicable, shares of the common stock (the “ Common Stock ”) of the Company, $0.003 par value per share (the “ Shares ”).

The Notes and the Shares are described in the Prospectus which is referred to below.  In connection with the issuance and sale of the Notes, the Company will enter into certain convertible note hedge and warrant transactions (collectively, the “ Hedging Transactions ”), as described in the Pre-Pricing Prospectus and Prospectus under the caption “Convertible note hedge and warrant transactions,” pursuant to agreements (the “ Hedging Transaction Agreements ”) described thereunder.

The Company has prepared and filed, in accordance with the provisions of the Securities Act of 1933, as amended, and the rules and regulations thereunder (collectively, the “ Act ”), with the Securities and Exchange Commission (the “ Commission ”) a registration statement on Form S-3 (File No. 333-139455) under the Act (the “ registration statement ”), including a prospectus, which registration statement registers the offer and sale of the Notes and the Shares under the Act and incorporates by reference documents which the Company has filed, or will file, in accordance with the provisions of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder (collectively, the “ Exchange Act ”).  Amendments to such registration statement, if necessary or appropriate, have been similarly prepared and filed with the Commission in accordance with the Act.  Such registration statement, as so amended, has become effective under the Act.

Except where the context otherwise requires, “ Registration Statement ,” as used herein, means the registration statement, as amended at the time of such registration statement’s effectiveness for purposes of Section 11 of the Act, as such section applies to the respective Underwriters (the “ Effective Time ”), including (i) all documents filed as a part thereof or incorporated or deemed to be incorporated by reference therein, (ii) any information contained or incorporated by reference in a prospectus filed with the Commission pursuant to Rule 424(b) under the Act, to the extent such information is deemed, pursuant to Rule 430B or Rule 430C under the Act, to be part of the registration statement at the Effective Time, and (iii) any registration statement filed to register the offer and sale of Notes pursuant to Rule 462(b) under the Act.

The Company has furnished to you, for use by the Underwriters and by dealers in connection with the offering of the Notes, copies of one or more preliminary prospectus supplements relating to the Notes.  Except where the context otherwise requires, “ Pre-Pricing Prospectus ,” as used herein, means each such preliminary prospectus supplement, in the form so furnished, including any basic prospectus (whether or not in preliminary form) furnished to you by the Company and attached to or used with such preliminary prospectus supplement.  Except where the context otherwise requires, “ Basic Prospectus ,” as used herein, means any such basic prospectus and any basic prospectus furnished to you by the Company and attached to or used with the Prospectus Supplement (as defined below).

Except where the context otherwise requires, “ Prospectus Supplement ,” as used herein, means the final prospectus supplement, relating to the Notes, filed by the Company with the Commission pursuant to Rule 424(b) under the Act on or before the second business day after the date hereof (or such earlier time as may be required under the Act), in the form furnished by the Company to you for use by the Underwriters and by dealers in connection with the offering of the Notes.

Except where the context otherwise requires, “ Prospectus ,” as used herein, means the Prospectus Supplement together with the Basic Prospectus attached to or used with the Prospectus Supplement.

“ Permitted Free Writing Prospectuses ,” as used herein, means the documents listed on Schedule B attached hereto and each “road show” (as defined in Rule 433 under the Act), if any, related to the offering of the Notes contemplated hereby that is a “written communication” (as defined in Rule 405 under the Act).  The Underwriters have not offered or sold and will not offer or sell, without the Company’s consent, any Notes by means of any “free writing prospectus” (as defined in Rule 405 under the Act) that is not a Permitted Free Writing Prospectus and that either (i) is required to be filed by the Underwriters with the Commission pursuant to Rule 433 under the Act or (ii) contains any “issuer information” (as defined in Rule 433 under the Act) that has not theretofore been filed with the Commission by the Company.

“ Disclosure Package ,” as used herein, means any Pre-Pricing Prospectus or Basic Prospectus, in either case together with any combination of one or more of the Permitted Free Writing Prospectuses, if any.

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Any reference herein to the registration statement, the Registration Statement, any Basic Prospectus, any Pre-Pricing Prospectus, the Prospectus Supplement, the Prospectus or any Permitted Free Writing Prospectus shall be deemed to refer to and include the documents, if any, incorporated by reference, or deemed to be incorporated by reference, therein (the “ Incorporated Documents ”), including, unless the context otherwise requires, the documents, if any, filed as exhibits to such Incorporated Documents.  Any reference herein to the terms “ amend ,” “ amendment ” or “ supplement ” with respect to the Registration Statement, any Basic Prospectus, any Pre-Pricing Prospectus, the Prospectus Supplement, the Prospectus or any Permitted Free Writing Prospectus shall be deemed to refer to and include the filing of any document under the Exchange Act on or after the initial effective date of the Registration Statement, or the date of such Basic Prospectus, such Pre-Pricing Prospectus, the Prospectus Supplement, the Prospectus or such Permitted Free Writing Prospectus, as the case may be, and deemed to be incorporated therein by reference.

As used in this Agreement, “ business day ” shall mean a day on which the NASDAQ Global Market (the “ NASDAQ ”) is open for trading.  The terms “herein,” “hereof,” “hereto,” “hereinafter” and similar terms, as used in this Agreement, shall in each case refer to this Agreement as a whole and not to any particular section, paragraph, sentence or other subdivision of this Agreement.  The term “or,” as used herein, is not exclusive.

The Company and the Underwriters agree as follows:

1.             Sale and Purchase .  Upon the basis of the representations and warranties and subject to the other terms and conditions herein set forth, the Company agrees to issue and sell to the respective Underwriters and each of the Underwriters, severally and not jointly, agrees to purchase from the Company the aggregate principal amount of Firm Notes set forth opposite the name of such Underwriter in Schedule A attached hereto, subject to adjustment in accordance with Section 8 hereof, in each case at a purchase price of 97% of the principal amount thereof.  The Company is advised by you that the Underwriters intend (i) to make a public offering of their respective portions of the Firm Notes as soon after the effectiveness of this Agreement as in your judgment is advisable and (ii) initially to offer the Firm Notes upon the terms set forth in the Prospectus.  You may from time to time increase or decrease the public offering price after the initial public offering to such extent as you may determine.

In addition, the Company hereby grants to the several Underwriters the option (the “ Over-Allotment Option ”) to purchase, and upon the basis of the representations and warranties and subject to the terms and conditions herein set forth, the Underwriters shall have the right to purchase, severally and not jointly, from the Company, ratably in accordance with the aggregate principal amount of Firm Notes to be purchased by each of them, all or a portion of the Additional Notes as may be necessary to cover over-allotments made in connection with the offering of the Firm Notes, at a purchase price of 97% of the principal amount thereof.  The Over-Allotment Option may be exercised by UBS Securities LLC (“ UBS ”) on behalf of the several Underwriters at any time and from time to time on or before the thirtieth day following the date of the Prospectus Supplement by written notice to the Company.  Such notice shall set forth the aggregate principal amount of Additional Notes as to which the Over-Allotment Option is being exercised and the date and time when the Additional Notes are to be delivered (any such

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date and time being herein referred to as an “ additional time of purchase ”); provided , however , that no additional time of purchase shall be earlier than the “time of purchase” (as defined below) nor earlier than the second business day after the date on which the Over-Allotment Option shall have been exercised nor later than the tenth business day after the date on which the Over-Allotment Option shall have been exercised.  The principal amount of Additional Notes to be sold to each Underwriter shall be the principal amount which bears the same proportion to the aggregate principal amount of Additional Notes being purchased as the principal amount of Firm Notes set forth opposite the name of such Underwriter on Schedule A hereto bears to the aggregate principal amount of Firm Notes, subject to adjustment in accordance with Section 8 hereof.

2.             Payment and Delivery .  Payment of the purchase price for the Firm Notes shall be made to the Company by Federal Funds wire transfer, against delivery of the Firm Notes to you through the facilities of The Depository Trust Company (“ DTC ”) for the respective accounts of the Underwriters.  Such payment and delivery shall be made at 10:00 A.M., New York City time, on February 12, 2007 (unless another time shall be agreed to by you and the Company or unless postponed in accordance with the provisions of Section 8 hereof).  The time at which such payment and delivery are to be made is hereinafter sometimes called the “ time of purchase .”  Electronic transfer of the Firm Notes shall be made to you at the time of purchase in such names and in such denominations as you shall specify.

Payment of the purchase price for the Additional Notes shall be made at the additional time of purchase in the same manner and at the same office and time of day as the payment for the Firm Notes.  Electronic transfer of the Additional Notes shall be made to you at the additional time of purchase in such names and in such denominations as you shall specify.

For the purpose of expediting the checking of the certificates for the Notes by you, the Company agrees to make such certificates available to you for such purpose at least one full business day preceding the time of purchase or the additional time of purchase, as the case may be.

Deliveries of the documents described in Section 6 hereof with respect to the purchase of the Notes shall be made at the offices of Dewey Ballantine LLP at 1301 Avenue of the Americas, New York, New York, at 9:00 A.M., New York City time, on the date of the closing of the purchase of the Firm Notes or the Additional Notes, as the case may be.

3.             Representations and Warranties of the Company .  The Company represents and warrants to and agrees with each of the Underwriters that:

(a)           the Registration Statement has heretofore become effective under the Act or, with respect to any registration statement to be filed to register the offer and sale of Notes and the Shares pursuant to Rule 462(b) under the Act, will be filed with the Commission and become effective under the Act no later than 10:00 P.M., New York City time, on the date hereof; no stop order of the Commission preventing or suspending the use of any Basic Prospectus, any Pre-Pricing Prospectus, the Prospectus Supplement, the Prospectus or any Permitted Free Writing Prospectus, or the effectiveness of the

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Registration Statement, has been issued, and no proceedings for such purpose have been instituted or, to the Company’s knowledge, are contemplated by the Commission;

(b)           the Registration Statement complied when it became effective, complies as of the date hereof and, as amended or supplemented, at the time of purchase, each additional time of purchase, if any, and at all times during which a prospectus is required by the Act to be delivered (whether physically or through compliance with Rule 172 under the Act or any similar rule) in connection with any sale of Notes, will comply, in all material respects, with the requirements of the Act; the conditions to the use of Form S-3 in connection with the offering and sale of the Notes and Shares as contemplated hereby have been satisfied; the Registration Statement meets, and the offering and sale of the Notes and the Shares as contemplated hereby complies with, the requirements of Rule 415 under the Act; the Registration Statement did not, as of the Effective Time, 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 not misleading; each Pre-Pricing Prospectus complied, at the time it was filed with the Commission, and complies as of the date hereof, in all material respects with the requirements of the Act; at no time during the period that begins on the date of such Pre-Pricing Prospectus and ends at the time of purchase did or will any Pre-Pricing Prospectus, as then amended or supplemented, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, and at no time during such period did or will any Pre-Pricing Prospectus, as then amended or supplemented, together with any combination of one or more of the then issued Permitted Free Writing Prospectuses, if any, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; each Basic Prospectus complied or will comply, as of its date and the date it was or will be filed with the Commission, complies as of the date hereof (if filed with the Commission on or prior to the date hereof) and, at the time of purchase, each additional time of purchase, if any, and at all times during which a prospectus is required by the Act to be delivered (whether physically or through compliance with Rule 172 under the Act or any similar rule) in connection with any sale of Notes, will comply, in all material respects, with the requirements of the Act; at no time during the period that begins on the date of such Basic Prospectus and the date such Basic Prospectus was filed with the Commission and ends at the time of purchase did or will any Basic Prospectus, as then amended or supplemented, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, and at no time during such period did or will any Basic Prospectus, as then amended or supplemented, together with any combination of one or more of the then issued Permitted Free Writing Prospectuses, if any, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; each of the Prospectus Supplement and the Prospectus will comply, as of the date that it is filed with the Commission, the date of the Prospectus Supplement, the time of purchase, each additional time of purchase, if any, and at all times during which a prospectus is required by the Act to be delivered (whether

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physically or through compliance with Rule 172 under the Act or any similar rule) in connection with any sale of Notes, in all material respects, with the requirements of the Act (in the case of the Prospectus, including, without limitation, Section 10(a) of the Act); at no time during the period that begins on the date of the Prospectus Supplement and ends at the later of the time of purchase, the latest additional time of purchase, if any, and the end of the period during which a prospectus is required by the Act to be delivered (whether physically or through compliance with Rule 172 under the Act or any similar rule) in connection with any sale of Notes did or will any Prospectus Supplement or the Prospectus, as then amended or supplemented, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; at no time during the period that begins on the date of such Permitted Free Writing Prospectus and ends at the time of purchase did or will any Permitted Free Writing Prospectus include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided , however , that the Company makes no representation or warranty in this Section 3(b) with respect to any statement contained in the Registration Statement, any Pre-Pricing Prospectus, the Prospectus or any Permitted Free Writing Prospectus in reliance upon and in conformity with information concerning an Underwriter and furnished in writing by or on behalf of such Underwriter through you to the Company expressly for use in the Registration Statement, such Pre-Pricing Prospectus, the Prospectus or such Permitted Free Writing Prospectus; each Incorporated Document, at the time such document was filed, or will be filed, with the Commission or at the time such document became or becomes effective, as applicable, complied or will comply, in all material respects, with the requirements of the Exchange Act and did not or will not, as applicable, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading;

(c)           prior to the execution of this Agreement, the Company has not, directly or indirectly, offered or sold any Notes by means of any “prospectus” (within the meaning of the Act) or used any “prospectus” (within the meaning of the Act) in connection with the offer or sale of the Notes, in each case other than the Pre-Pricing Prospectuses and the Permitted Free Writing Prospectuses, if any; the Company has not, directly or indirectly, prepared, used or referred to any Permitted Free Writing Prospectus except in compliance with Rules 164 and 433 under the Act; assuming that such Permitted Free Writing Prospectus is so sent or given after the Registration Statement was filed with the Commission (and after such Permitted Free Writing Prospectus was, if required pursuant to Rule 433(d) under the Act, filed with the Commission), the sending or giving, by any Underwriter, of any Permitted Free Writing Prospectus will satisfy the provisions of Rule 164 and Rule 433 (without reliance on subsections (b), (c) and (d) of Rule 164); the conditions set forth in one or more of subclauses (i) through (iv), inclusive, of Rule 433(b)(1) under the Act are satisfied, and the registration statement relating to the offering of the Notes and the Shares contemplated hereby, as initially filed with the Commission, includes a prospectus that, other than by reason of Rule 433 or Rule 431 under the Act, satisfies the requirements of Section 10 of the Act; neither the Company

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nor the Underwriters are disqualified, by reason of subsection (f) or (g) of Rule 164 under the Act, from using, in connection with the offer and sale of the Notes and the Shares, “free writing prospectuses” (as defined in Rule 405 under the Act) pursuant to Rules 164 and 433 under the Act; the Company is not an “ineligible issuer” (as defined in Rule 405 under the Act) as of the eligibility determination date for purposes of Rules 164 and 433 under the Act with respect to the offering of the Notes and the Shares contemplated by the Registration Statement, without taking into account any determination by the Commission pursuant to Rule 405 under the Act that it is not necessary under the circumstances that the Company be considered an “ineligible issuer”; the parties hereto agree and understand that the content of any and all “road shows” (as defined in Rule 433 under the Act) related to the offering of the Notes and the Shares contemplated hereby is solely the property of the Company;

(d)           in accordance with Rule 2710(b)(7)(C)(i) of the National Association of Securities Dealers, Inc. (the “ NASD ”), the Notes have been registered with the Commission on Form S-3 under the Act pursuant to the standards for such Form S-3 in effect prior to October 21, 1992;

(e)           the Company has and, as of the time of purchase and any additional time of purchase, as the case may be, the Company shall have an authorized and outstanding capitalization as set forth in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and each Permitted Free Writing Prospectus, if any (subject, in each case, to the issuance of shares of Common Stock upon exercise of stock options and warrants disclosed as outstanding in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus and the grant of options under existing stock option plans described in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus); all of the issued and outstanding shares of capital stock, including the Common Stock, of the Company have been duly authorized and validly issued and are fully paid and non-assessable, have been issued in compliance with all applicable securities laws and were not issued in violation of any preemptive right, resale right, right of first refusal or similar right; upon issuance, the Shares will be duly listed, and admitted and authorized for trading, on the NASDAQ);

(f)            the Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the State of Delaware, with full corporate power and authority to own, lease and operate its properties and conduct its business as described in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, to execute and deliver this Agreement, the Indenture and the Notes and to issue, sell and deliver the Notes and the Shares issuable upon conversion of the Notes as contemplated by this Agreement, the Indenture and the Notes, and to enter into and perform the Hedge Transaction Agreements;

(g)           the Company is duly qualified to do business as a foreign corporation and is in good standing in each jurisdiction where the ownership or leasing of its properties or the conduct of its business requires such qualification, except where the failure to be so qualified and in good standing would not, individually or in the aggregate, either (i) have

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a material adverse effect on the business, properties, financial condition, results of operations or prospects of the Company, (ii) prevent or materially interfere with consummation of the transactions contemplated by this Agreement, the Indenture or the Notes or (iii) result in the delisting of shares of Common Stock from the NASDAQ (the occurrence of any such effect or any such prevention or interference or any such result described in the foregoing clauses (i), (ii) or (iii) being herein referred to as a “ Material Adverse Effect ”);

(h)           the Company has no subsidiaries (as defined under the Act); except as disclosed in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus, the Company does not own, directly or indirectly, any shares of stock or any other equity interests or long-term debt securities of any corporation, firm, partnership, joint venture, association or other entity; complete and correct copies of the charters and the bylaws of the Company and all amendments thereto have been delivered to you, and no changes therein will be made on or after the date hereof through and including the time of purchase or, if later, any additional time of purchase;

(i)            this Agreement has been duly authorized, executed and delivered by the Company;

(j)            the Indenture has been duly qualified under the Trust Indenture Act of 1939, as amended (the “ Trust Indenture Act ”), and has been duly authorized by the Company and, when executed and delivered by the Company and the Trustee, will be a legal, valid and binding agreement of the Company, enforceable in accordance with its terms, except as the enforceability thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and general principles of equity;

(k)           the Notes have been duly authorized by the Company and, when executed and delivered by the Company and duly authenticated in accordance with the terms of the Indenture and delivered to and paid for by the Underwriters in accordance with the terms hereof, will constitute legal, valid and binding obligations of the Company, enforceable in accordance with their terms, except as the enforceability thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and general principles of equity, and will be entitled to the benefits of the Indenture; the Shares issuable upon conversion of the Notes have been duly authorized and validly reserved for issuance upon conversion of the Notes, and, upon conversion of the Notes in accordance with their terms and the terms of the Indenture, will be issued free of statutory and contractual preemptive rights, resale rights, rights of first refusal and similar rights and free of any voting restrictions (and will be free of any restriction, pursuant to the Company’s charter or bylaws or any agreement or other instrument to which the Company is a party, upon the transfer thereof); such Shares, when so issued upon such conversion in accordance with the terms of the Notes and of the Indenture, will be duly and validly issued and fully paid and nonassessable; and the certificates for such Shares will be in due and proper form;

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(l)            each of the Hedging Transaction Agreements has been duly authorized by the Company and, when executed and delivered by the Company and the counterparty or counterparties thereto, will be a legal, valid and binding agreement of the Company, enforceable in accordance with its terms, except as the enforceability thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and general principles of equity;

(m)          the terms of the Notes, the Indenture, the capital stock of the Company, including the Shares, and the Hedging Transactions conform in all material respects to each description thereof contained in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any;

(n)           the Company is not in breach or violation of or in default under (and no event has occurred which, with notice, lapse of time or both, would result in any breach or violation of, constitute a default under or give the holder of any indebtedness (or a person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a part of such indebtedness under) (A) its charter or bylaws, or (B) any indenture, mortgage, deed of trust, bank loan or credit agreement or other evidence of indebtedness, or any license, lease, contract or other agreement or instrument to which it is a party or by which it or any of its properties may be bound or affected, or (C) any federal, state, local or foreign law, regulation or rule, or (D) any rule or regulation of any self-regulatory organization or other non-governmental regulatory authority (including, without limitation, the rules and regulations of the NASDAQ), or (E) any decree, judgment or order applicable to it or any of its properties, except, in the case of clauses (B), (C) and (D), for breaches, violations and defaults as would not, individually or in the aggregate, have a Material Adverse Effect;

(o)           the execution, delivery and performance of this Agreement, the Indenture and the Notes and the consummation of the transactions contemplated hereby and thereby, including the issuance and sale of the Notes and the issuance of the Shares issuable upon conversion of the Notes, and the consummation of the Hedging Transactions, will not conflict with, result in any breach or violation of or constitute a default under (nor constitute any event which, with notice, lapse of time or both, would result in any breach or violation of, constitute a default under or give the holder of any indebtedness (or a person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a part of such indebtedness under) (or result in the creation or imposition of a lien, charge or encumbrance on any property or assets of the Company) (A) the charter or bylaws of the Company, or (B) any indenture, mortgage, deed of trust, bank loan or credit agreement or other evidence of indebtedness, or any license, lease, contract or other agreement or instrument to which the Company is a party or by which the Company or any of its properties may be bound or affected, or (C) any applicable federal, state, local or foreign law, regulation or rule, or (D) any rule or regulation of any self-regulatory organization or other non-governmental regulatory authority (including, without limitation, the rules and regulations of the NASDAQ) having jurisdiction over the Company, or (E) any decree, judgment or order applicable to the Company or any of the Company’s properties;

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(p)           no approval, authorization, consent or order of or filing with any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency, or of or with any self-regulatory organization or other non-governmental regulatory authority (including, without limitation, the NASDAQ), or approval of the stockholders of the Company, is required in connection with the issuance and sale of the Notes or the issuance of Shares upon conversion of the Notes or the consummation of the transactions contemplated by this Agreement, the Indenture or the Notes, or the consummation of the Hedging Transactions, other than (i) as have been obtained from NASDAQ, (ii) as may be required under the securities or blue sky laws of the various jurisdictions in which the Notes are being offered by the Underwriters or (iii) under the Conduct Rules of the NASD;

(q)           except as described in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus, (i) no person has the right, contractual or otherwise, to cause the Company to issue or sell to it any shares of Common Stock or shares of any other capital stock or other equity interests of the Company, (ii) no person has any preemptive rights, resale rights, rights of first refusal or other rights to purchase any shares of Common Stock or shares of any other capital stock of or other equity interests in the Company and (iii) no person has the right to act as an underwriter or initial purchaser or as a financial advisor to the Company in connection with the offer and sale of the Notes; except as described in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus, no person has the right, contractual or otherwise, to cause the Company to register under the Act any shares of Common Stock or shares of any other capital stock of or other equity interests in the Company; no person has the right, contractual or otherwise, to include any shares of Common Stock or shares of any other capital stock of or other equity interests in the Company in the Registration Statement or the offering contemplated thereby, other than any right of the broker-dealer parties to the Hedging Transaction Agreements to so include any such shares;

(r)            the Company has all necessary licenses, authorizations, consents and approvals and has made all necessary filings required under any applicable law, regulation or rule, and has obtained all necessary licenses, authorizations, consents and approvals from other persons, in order to conduct its business; the Company is not in violation of, or in default under, and has not received notice of any proceedings relating to revocation or modification of, any such license, authorization, consent or approval or any federal, state, local or foreign law, regulation or rule or any decree, order or judgment applicable to the Company, except where such violation, default, revocation or modification would not, individually or in the aggregate, have a Material Adverse Effect;

(s)           there are no actions, suits, claims, investigations or proceedings pending or, to the Company’s knowledge, threatened or contemplated to which the Company or any of its directors or officers is or would be a party or of which any of its properties is or would be subject at law or in equity, before or by any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency, or before or by any self-regulatory organization or other non-governmental regulatory authority

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(including, without limitation, the NASDAQ), except any such action, suit, claim, investigation or proceeding which, if resolved adversely to the Company, would not, individually or in the aggregate, have a Material Adverse Effect;

(t)            PricewaterhouseCoopers LLP, whose report on the consolidated financial statements of the Company is included or incorporated by reference in the Registration Statement, the Pre-Pricing Prospectuses and the Prospectus, are independent registered public accountants as required by the Act and by the rules of the Public Company Accounting Oversight Board;

(u)           the financial statements included or incorporated by reference in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, together with the related notes and schedules, present fairly the consolidated financial position of the Company as of the dates indicated and the consolidated results of operations, cash flows and changes in stockholders’ equity of the Company for the periods specified and have been prepared in compliance with the requirements of the Act and Exchange Act and in conformity with U.S. generally accepted accounting principles applied on a consistent basis during the periods involved; all pro forma financial statements, if any, or pro forma financial data included or incorporated by reference in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, comply with all applicable requirements of the Act and the Exchange Act, and the assumptions used in the preparation of such pro forma financial statements and data are reasonable, the pro forma adjustments used therein are appropriate to give effect to the transactions or circumstances described therein and the pro forma adjustments have been properly applied to the historical amounts in the compilation of those statements and data; the other financial and statistical data contained or incorporated by reference in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, are accurately and fairly presented and prepared on a basis consistent with the financial statements and books and records of the Company; there are no financial statements (historical or pro forma) that are required to be included or incorporated by reference in the Registration Statement, any Pre-Pricing Prospectus or the Prospectus that are not included or incorporated by reference as required; the Company does not have any material liabilities or obligations, direct or contingent (including any off-balance sheet obligations), not described in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus; and all disclosures contained or incorporated by reference in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, regarding “non-GAAP financial measures” (as such term is defined by the rules and regulations of the Commission) comply with Regulation G of the Exchange Act and Item 10 of Regulation S-K under the Act, to the extent applicable;

(v)           except as disclosed in the Registration Statement, each Pre-Pricing Prospectus and the Prospectus, each stock option granted under any stock option plan of the Company (each, a “ Stock Plan ”) was granted with a per share exercise price no less than the fair market value per share of Common Stock on the grant date of such option,

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and no such option was dated as of a date other than the date such option was deemed, pursuant to U.S. generally accepted accounting principles, to be granted; except as would not, individually or in the aggregate, have a Material Adverse Effect, each such option (i) was granted in material compliance with applicable law and with the applicable Stock Plan(s), (ii) was duly approved by the board of directors (or a duly authorized committee thereof or an individual with authority duly delegated by the board of directors) of the Company and (iii) has been properly accounted for in the Company’s financial statements in accordance with U.S. generally accepted accounting principles and disclosed in the Company’s filings with the Commission;

(w)          subsequent to the respective dates as of which information is given in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, in each case excluding any amendments or supplements to the foregoing made after the execution of this Agreement, there has not been (i) any material adverse change, or any development involving a prospective material adverse change, in the business, properties, management, financial condition or results of operations of the Company, (ii) any transaction that is material to the Company, (iii) any obligation or liability, direct or contingent (including any off-balance sheet obligations), incurred by the Company, which is material to the Company, (iv) any change in the capital stock or outstanding indebtedness of the Company or (v) any dividend or distribution of any kind declared, paid or made on the capital stock of the Company;

(x)            the Company has obtained for the benefit of the Underwriters the agreement (a “ Lock-Up Agreement ”), in the form set forth as Exhibit A hereto, with such changes, if any, as are acceptable to UBS, of each of its directors and “officers” (within the meaning of Rule 16a-1(f) under the Exchange Act), VantagePoint Venture Partners IV (Q), L.P.,  VantagePoint Venture Partners IV, L.P. and VantagePoint Venture Partners IV Principals Fund, L.P.;

(y)           the Company is not, and at no time during which a prospectus is required by the Act to be delivered (whether physically or through compliance with Rule 172 under the Act or any similar rule) in connection with any sale of Shares will the Company be, and, after giving effect to the offering and sale of the Notes and the application of the proceeds thereof, the Company will not be an “investment company” or an entity “controlled” by an “investment company,” as such terms are defined in the Investment Company Act of 1940, as amended (the “ Investment Company Act ”);

(z)            except as would not, individually or in the aggregate, have a Material Adverse Effect, the Company has good and marketable title to all property (real and personal) described in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, as being owned by the Company, free and clear of all liens, claims, security interests or other encumbrances; all the property described in the Registration Statement, the Pre-Pricing Prospectuses, the Prospectus and the Permitted Free Writing Prospectuses, if any, as being held under lease by the Company is held thereby under valid, subsisting and enforceable leases;

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

(bb)                           the Company is not engaged in any unfair labor practice; except for matters which would not, individually or in the aggregate, have a Material Adverse

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Effect, (i) there is (A) no unfair labor practice complaint pending or, to the Company’s knowledge, threatened against the Company before the National Labor Relations Board, and no grievance or arbitration proceeding arising out of or under collective bargaining agreements is pending or, to the Company’s knowledge, threatened, (B) no strike, labor dispute, slowdown or stoppage pending or, to the Company’s knowledge, threatened against the Company and (C) no union representation dispute currently existing concerning the employees of the Company, (ii) to the Company’s knowledge, no union organizing activities are currently taking place concerning the employees of the Company and (iii) there has been no violation of any federal, state, local or foreign law relating to discrimination in the hiring, promotion or pay of employees, any applicable wage or hour laws or any provision of the Employee Retirement Income Security Act of 1974 (“ ERISA ”) or the rules and regulations promulgated thereunder concerning the emp