SANGAMO BIOSCIENCES, INC. 3,000,000 SHARES

Exhibit 10.1

SANGAMO BIOSCIENCES, INC.
3,000,000 SHARES

CONTROLLED EQUITY OFFERING^SM

SALES AGREEMENT

May 18, 2007

CANTOR FITZGERALD & CO.
110 East 59th Street
New York, NY 10022

Ladies and Gentlemen:

          SANGAMO BIOSCIENCES, INC., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with Cantor Fitzgerald & Co. (“CF&Co”), as follows:

     1.   Issuance and Sale of Shares. The Company agrees that, from time to time during the term of this Agreement, on the terms and subject to the conditions set forth herein, it may issue and sell through CF&Co, acting as agent and/or principal, up to THREE MILLION (3,000,0000 shares of the Company’s common stock, par value $0.01 per share (the “Common Stock” or “Shares”). The issuance and sale of Shares through CF&Co will be effected pursuant to the Registration Statement (as defined below) filed by the Company and declared effective by the Securities and Exchange Commission (the “Commission”), although nothing in this Agreement shall be construed as requiring the Company to use the Registration Statement to issue Common Stock.

          The Company has filed, in accordance with the provisions of the Securities Act of 1933, as amended, and the rules and regulations thereunder (collectively, the “Securities Act”), with the Commission a registration statement on Form S-3 (File No. 333-134516), including a base prospectus, with respect to equity and other offerings, including the Shares, and which incorporates by reference documents that 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”). The Company has prepared a prospectus supplement (the “Prospectus Supplement”) to the base prospectus included as part of such registration statement. The Company has furnished to CF&Co, for use by CF&Co, copies of one or more prospectuses included as part of such registration statement, as supplemented by the Prospectus Supplement, relating to the Shares. Except where the context otherwise requires, such registration statement, as amended when it became effective, including all documents filed as part thereof or incorporated by reference therein, and including any information contained in a Prospectus (as defined below) subsequently filed with the Commission pursuant to Rule 424(b) under the Securities Act and also including any other registration statement filed pursuant to Rule 462(b) under the Securities Act, collectively, are herein called the “Registration Statement,” and the base prospectus, including all documents incorporated therein by reference, included in the Registration Statement, as it may be supplemented by the Prospectus

Supplement, in the form filed by the Company with the Commission pursuant to Rule 424(b) under the Securities Act is herein called the “Prospectus.” Unless otherwise provided herein, any reference herein to the Registration Statement, the Prospectus or any amendment or supplement thereto shall be deemed to refer to and include the documents incorporated by reference therein, and unless otherwise provided herein, any reference herein to the terms “amend,” “amendment” or “supplement” with respect to the Registration Statement or the Prospectus shall be deemed to refer to and include the filing after the execution hereof of any document with the Commission deemed to be incorporated by reference therein. For purposes of this Agreement, all references to the Registration Statement, the Prospectus or to any amendment or supplement thereto shall be deemed to include any copy filed with the Commission pursuant to its Electronic Data Gathering Analysis and Retrieval System (“EDGAR”).

     2.   Placements. Each time that the Company wishes to issue and sell Shares hereunder (each, a “Placement”), it will notify CF&Co by email notice (or other method mutually agreed to in writing by the parties) containing the parameters in accordance with which it desires the Shares to be sold, which shall at a minimum include the number of Shares to be issued (the “Placement Shares”), the time period during which sales are requested to be made, any limitation on the number of Shares that may be sold in any one day and any minimum price below which sales may not be made (a “Placement Notice”), a form of which containing such minimum sales parameters necessary is attached hereto as Schedule 1. The Placement Notice shall originate from any of the individuals from the Company set forth on Schedule 2 (with a copy to each of the other individuals from the Company listed on such schedule), and shall be addressed to each of the individuals from CF&Co set forth on Schedule 2, as such Schedule 2 may be amended from time to time. The Placement Notice shall be effective upon receipt by CF&Co unless and until (i) in accordance with the notice requirements set forth in Section 4, CF&Co declines to accept the terms contained therein for any reason, in its sole discretion, (ii) the entire amount of the Placement Shares have been sold, (iii) in accordance with the notice requirements set forth in Section 4, the Company suspends or terminates the Placement Notice, (iv) the Company issues a subsequent Placement Notice with parameters superseding those on the earlier dated Placement Notice, or (iv) the Agreement has been terminated under the provisions of Section 11. The amount of any discount, commission or other compensation to be paid by the Company to CF&Co in connection with the sale of the Placement Shares shall be calculated in accordance with the terms set forth in Schedule 3. It is expressly acknowledged and agreed that neither the Company nor CF&Co will have any obligation whatsoever with respect to a Placement or any Placement Shares unless and until the Company delivers a Placement Notice to CF&Co and CF&Co does not decline such Placement Notice pursuant to the terms set forth above, and then only upon the terms specified therein and herein. In the event of a conflict between the terms of this Agreement and the terms of a Placement Notice, the terms of the Placement Notice will control.

     3.   Sale of Placement Shares by CF&Co. Subject to the terms and conditions herein set forth, upon the Company’s issuance of a Placement Notice, and unless the sale of the Placement Shares described therein has been declined, suspended, or otherwise terminated in accordance with the terms of this Agreement, CF&Co, for the period specified in the Placement Notice, will use its commercially reasonable efforts consistent with its normal trading and sales practices to sell such Placement Shares up to the amount specified, and otherwise in accordance with the terms of such Placement Notice. CF&Co will provide written confirmation to the Company no later than the

opening of the Trading Day (as defined below) immediately following the Trading Day on which it has made sales of Placement Shares hereunder setting forth the number of Placement Shares sold on such day, the compensation payable by the Company to CF&Co pursuant to Section 2 with respect to such sales, and the Net Proceeds (as defined below) payable to the Company, with an itemization of the deductions made by CF&Co (as set forth in Section 5(a)) from the gross proceeds that it receives from such sales. CF&Co may sell Placement Shares by any method permitted by law deemed to be an “at the market” offering as defined in Rule 415 of the Securities Act, including without limitation sales made directly on the Nasdaq Global Market (the “NASDAQ”) or on any other existing trading market for the Common Stock (and together with the NASDAQ, an “Exchange”) or to or through a market maker. The Company acknowledges and agrees that (i) there can be no assurance that CF&Co will be successful in selling Placement Shares, and (ii) CF&Co will incur no liability or obligation to the Company or any other person or entity if it does not sell Placement Shares for any reason other than a failure by CF&Co to use its commercially reasonable efforts consistent with its normal trading and sales practices to sell such Placement Shares as required under this Section 3. For the purposes hereof, “Trading Day” means any day on which Common Stock is purchased and sold on the principal market on which the Common Stock is listed or quoted.

     4.   Suspension of Sales. The Company or CF&Co may, upon notice to the other party in writing (including by email correspondence to each of the individuals of the other Party set forth on Schedule 2, if receipt of such correspondence is actually acknowledged by any of the individuals to whom the notice is sent, other than via auto-reply) or by telephone (confirmed immediately by verifiable facsimile transmission or email correspondence to each of the individuals of the other Party set forth on Schedule 2), suspend any sale of Placement Shares; provided, however, that such suspension shall not affect or impair either party’s obligations with respect to any Placement Shares sold hereunder prior to the receipt of such notice. Each of the Parties agrees that no such notice under this Section 4 shall be effective against the other unless it is made to one of the individuals named on Schedule 2 hereto, as such Schedule may be amended from time to time.

     5.   Settlement.

          (a)  Settlement of Placement Shares. Unless otherwise specified in the applicable Placement Notice, settlement for sales of Placement Shares will occur on the third (3^rd) Business Day (or such earlier day as is industry practice for regular-way trading) following the date on which such sales are made (each, a “Settlement Date”). The amount of proceeds to be delivered to the Company on a Settlement Date against receipt of the Placement Shares sold (the “Net Proceeds”) will be equal to the aggregate sales price received by CF&Co at which such Placement Shares were sold, after deduction for (i) CF&Co’s commission, discount or other compensation for such sales payable by the Company pursuant to Section 2 hereof, (ii) any other amounts due and payable by the Company to CF&Co hereunder pursuant to Section 7(g) (Expenses) hereof, and (iii) any transaction fees imposed by any governmental or self-regulatory organization in respect of such sales.

          (b)  Delivery of Placement Shares. On or before each Settlement Date, the Company will, or will cause its transfer agent to, electronically transfer the Placement Shares being sold by crediting CF&Co’s or its designee’s (provided CF&Co shall have given the Company written notice of such designee at least one Business Day prior to the Settlement Date) account at The

Depository Trust Company through its Deposit and Withdrawal at Custodian System or by such other means of delivery as may be mutually agreed upon by the parties hereto and, upon receipt of such Placement Shares, which in all cases shall be freely tradable, transferable, registered shares in good deliverable form, CF&Co will deliver the related Net Proceeds in same day funds to an account designated by the Company prior to the Settlement Date. If the Company defaults in its obligation to deliver Placement Shares on a Settlement Date, the Company agrees that in addition to and in no way limiting the rights and obligations set forth in Section 9(a) (Indemnification) hereto, it will (i) hold CF&Co harmless against any loss, claim, damage, or expense (including reasonable legal fees and expenses), as incurred, arising out of or in connection with such default by the Company and (ii) pay to CF&Co any commission, discount, or other compensation to which it would otherwise have been entitled absent such default.

     6.   Representations and Warranties of the Company. The Company represents and warrants to, and agrees with, CF&Co that as of the date of this Agreement and as of each Representation Date (as defined in Section 7(m) below) on which a certificate is required to be delivered pursuant to Section 7(m) of this Agreement, as the case may be:

          (a)  Registration Statement and Prospectus. The Company has been since the time of initial filing of the Registration Statement and continues to be eligible to use Form S-3 for the offering of the Shares. The Registration Statement has been filed with the Commission and has been declared effective under the Securities Act. The Registration Statement has named CF&Co as an underwriter, acting as principal and/or agent that the Company might engage in the section entitled “Plan of Distribution.” The Company has not received, and has no notice of, any order of the Commission preventing or suspending the use of the Registration Statement, or threatening or instituting proceedings for that purpose. Any statutes, regulations, contracts or other documents that are required to be described in the Registration Statement or the Prospectus or to be filed as exhibits to the Registration Statement have been so described or filed. Copies of the Registration Statement, the Prospectus, and any such amendments or supplements and all documents incorporated by reference therein that were filed with the Commission on or prior to the date of this Agreement have been delivered, or made available through EDGAR, to CF&Co and their counsel. The Company has not distributed and will not distribute any offering material in connection with the offering or sale of the Placement Shares other than the Registration Statement and the Prospectus. The Common Stock is currently listed on the NASDAQ under the trading symbol “SGMO.”

          (b)  No Misstatement or Omission. The Registration Statement, when it became or becomes effective, and the Prospectus, and any amendment or supplement thereto, on the date of such Prospectus or amendment or supplement, conformed or will conform in all material respects with the requirements of the Securities Act. At each Settlement Date, the Registration Statement and the Prospectus, as of such date, will conform in all material respects with the requirements of the Securities Act. The Registration Statement, when it became or becomes effective, did not, or will not, 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. The Prospectus and any amendment or supplement thereto, on the date thereof and at each Settlement Date, did not or will not include an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. The foregoing shall not apply to statements in, or omissions from, any such

document made in reliance upon, and in conformity with, information furnished to the Company by CF&Co specifically for use in the preparation thereof.

          (c)  Conformity with Securities Act and Exchange Act. The documents incorporated by reference in the Registration Statement, the Prospectus or any amendment or supplement thereto, when such documents were or are filed with the Commission under the Securities Act or the Exchange Act or became or become effective under the Securities Act, as the case may be, conformed or will conform in all material respects with the requirements of the Securities Act and the Exchange Act, as applicable.

          (d)  Financial Information. The financial statements of the Company and the Subsidiaries (as defined below), together with the related schedules and notes thereto, set forth or included or incorporated by reference in the Registration Statement and the Prospectus fairly present, in all material respects, the financial condition of the Company and the Subsidiaries as of and at the dates indicated and the results of operations, changes in financial position, stockholders’ equity and cash flows for the periods therein specified. Such financial statements, schedules, and notes are in conformity with generally accepted accounting principles as consistently applied in the United States throughout the periods involved (except as otherwise stated therein). The selected financial data included or incorporated by reference in the Registration Statement and the Prospectus present fairly the information shown therein and, to the extent based upon or derived from the financial statements, have been complied on a basis consistent with the financial statements presented therein. Any pro forma financial statements of the Company and the Subsidiaries, and the related notes thereto, included or incorporated by reference in the Registration Statement and the Prospectus present fairly the information shown therein, have been prepared in accordance with the Commission’s rules and guidelines with respect to pro forma financial statements and have been properly compiled on the basis described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein. The Company and, to the Company’s knowledge, the Subsidiaries (as defined below) do not have any material liabilities or obligations, direct or contingent (including any off-balance sheet obligations), not disclosed in the Registration Statement and the Prospectus. No other financial statements are required to be set forth or to be incorporated by reference in the Registration Statement or the Prospectus under the Securities Act.

          (e)  Conformity with EDGAR Filing. The Prospectus delivered to CF&Co for use in connection with the sale of the Placement Shares pursuant to this Agreement will be identical to the versions of the Prospectus created to be transmitted to the Commission for filing via EDGAR, except to the extent permitted by Regulation S-T.

          (f)  Organization. Each of the Company and its Subsidiaries (as defined herein) have been duly incorporated and are validly existing as a corporation in good standing under the laws of its respective jurisdiction or organization (as applicable) with full corporate power and authority necessary to own, hold, lease and/or operate its assets and properties and to conduct the business in which it is engaged and as described in the Registration Statement and Prospectus; each of the Company and its Subsidiaries, respectively, is duly qualified as a foreign entity to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure, individually or in the aggregate, to be so qualified and be in good standing, or

have such power and authority would not have a material adverse effect on (i) the consolidated business, operations, assets, properties, financial condition, reputation, prospects, or results of operations of the Company and the Subsidiaries (as defined herein) taken as a whole, (ii) the transactions contemplated hereby, or (iii) the ability of the Company to perform its obligation under this Agreement (collectively, a “Material Adverse Effect”). The Company has full corporate power and authority necessary to enter into and perform its obligations under this Agreement and to consummate the transactions contemplated hereby. The Company is in compliance with the laws, orders, rules, regulations and directives applicable to it, except for any noncompliance that, individually, or in the aggregate, would not reasonably be expected to have a Material Adverse Effect. Complete and correct copies of the articles of incorporation and of the bylaws of the Company and all amendments thereto have been delivered to CF&Co.

          (g)  Subsidiaries. (1) The Company has no “significant subsidiaries” (as such term is defined in Rule 1-02 of Regulation S-X promulgated under the Securities Act) other than as listed in Schedule I hereto (each a “Subsidiary” and, collectively, the “Subsidiaries”).

(2) Other than the capital stock of the Subsidiaries, the Company does not own, directly or indirectly, any shares of stock or any other equity or long-term debt securities of any corporation or have any equity interest in any firm, partnership, joint venture, association or other entity. No options, warrants or other rights to purchase, agreements or other obligations to issue or other rights to convert any obligation into shares of capital stock or ownership interests in the Subsidiaries are outstanding.

          (h)  No Violation or Default. Neither the Company nor any of its Subsidiaries is (i) in violation of any provision of its charter or bylaws or similar organizational documents, (ii) is in default in any respect, and no event has occurred which, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant, or condition of any indenture, contract, lease, mortgage, deed of trust, note agreement, loan agreement or other agreement, obligation, condition, covenant or instrument to which it is a party or by which it is bound or to which any of its property or assets is subject, or (iii) is in violation in any respect of any statute, law, rule, regulation, ordinance, judgment, order or decree of any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company, its Subsidiaries or any of its properties, as applicable (including, without limitation, those administered by the Food and Drug Administration of the U.S. Department of Health and Human Services (the “FDA”) or by any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA), except, with respect to clauses (ii) and (iii), any violations or defaults which, singularly or in the aggregate, would not reasonably be expected to result in a Material Adverse Effect. The execution, delivery and performance of this Agreement, the issuance and sale of the Placement Shares and the consummation of the transactions contemplated hereby will not conflict with, or result in any breach of or constitute a default under (nor constitute any event which with notice, lapse of time or both would result in any breach of, or constitute a default under), (i) any provision of the charter, bylaws or organizational documents, as the case may be, of the Company or any of the Subsidiaries, (ii) any provision of any contract, license, repurchase agreement, management agreement, indenture, mortgage, deed of trust, bank loan or credit agreement, note, lease or other evidence of indebtedness, or any lease, contract or other agreement or instrument to which the Company or any of the Subsidiaries is a party or by which

the Company or any of the Subsidiaries, or any of their respective assets or properties may be bound or affected, except for any breach or default that, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect or (iii) any federal, state, local or foreign law, regulation or rule or any decree, judgment or order applicable to the Company or any of the Subsidiaries, except for any breach or default that, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect.

          (i)  Capitalization. All of the issued and outstanding shares of capital stock of the Company have been duly and validly authorized and issued and are fully paid and nonassessable, have been issued in compliance with all federal and state securities laws and were not issued in violation of any preemptive right, resale right, right of first refusal or similar right. As of the date hereof and as of each Closing Date, the Company has or will have, as the case may be, an authorized, issued and outstanding capitalization as is set forth in the Registration Statement and the Prospectus (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 and the Prospectus and grant of options under existing stock option plans described in the Registration Statement and the Prospectus), and such authorized capital stock conforms to the description thereof set forth in the Registration Statement and the Prospectus. Except as described in the Registration Statement and the Prospectus, as of the date referred to therein, the Company did not have outstanding any options, warrants, agreements, contracts or other rights in existence to purchase or acquire from the Company or any Subsidiary of the Company any shares of the capital stock of the Company or any Subsidiary.

          (j)  Contracts. Each description of a contract, document or other agreement in the Registration Statement and the Prospectus accurately reflects in all material respects the terms of the underlying contract, document or other agreement. Each contract, document or other agreement described in the Registration Statement and the Prospectus or listed in the exhibits to the Registration Statement or incorporated therein by reference is in full force and effect, unless validly terminated in accordance with the provisions thereof, and is valid and enforceable against the Company or its Subsidiary, as the case may be, in accordance with its terms. There are no contracts or other documents that are required under the Securities Act to be filed as exhibits to the Registration Statement that are not so filed pursuant to the Securities Act.

          (k)  Authorization; Enforceability. This Agreement has been duly authorized, executed and delivered by the Company and is a legal, valid and binding agreement of the Company enforceable in accordance with its terms, except to the extent that (i) enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and by general equitable principles and (ii) the indemnification and contribution provisions of Section 9 hereof may be limited by federal or state securities laws and public policy considerations in respect thereof.

          (l)  Capital Stock and Placement Shares in Proper Form. The capital stock of the Company, including the Placement Shares, conforms in all material respects to the description thereof contained in the Registration Statement and the Prospectus. The form of certificates for the Placement Shares are in due and proper form and the holders of the Shares will not be subject to personal liability under the Delaware General Corporation Law by reason of being such holders.

          (m)  Authorization of Placement Shares. The Placement Shares, when issued and delivered pursuant to the terms approved by the Board of Directors or a duly designated committee thereof, against payment therefor as provided herein, will be duly and validly authorized and issued and fully paid and nonassessable, free and clear of any pledge, lien, encumbrance, security interest or other claim, including any statutory or contractual preemptive rights, resale rights, rights of first refusal or other similar rights, and will be registered pursuant to Section 12 of the Exchange Act.

          (n)  Consents and Permits. (1) The Company and each of its Subsidiaries has made all filings, applications and submissions required by, and possesses all approvals, licenses, certificates, certifications, clearances, consents, exemptions, marks, notifications, orders, permits and other authorizations issued by, the appropriate federal, state or foreign regulatory authorities (including, without limitation, the FDA, and any other foreign, federal, state or local government or regulatory authorities performing functions similar to those performed by the FDA) necessary for the ownership or lease of their respective properties or to conduct its businesses as described in the Registration Statement and the Prospectus (collectively, “Permits”), except for such Permits the failure of which to possess, obtain or make the same would not reasonably be expected to have a Material Adverse Effect; and except as set forth in the Prospectus, neither the Company nor any of its Subsidiaries has received any written notice of proceedings relating to the limitation, revocation, cancellation, suspension, modification or non-renewal of any such Permit which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would have a Material Adverse Effect, and has any reason to believe that any such license, certificate, permit or authorization will not be renewed in the ordinary course. (2) No approval, authorization, consent or order of or filing with any national, state or local governmental or regulatory commission, board, body, authority or agency is required in connection with the issuance and sale of the Placement Shares or the consummation by the Company of the transactions contemplated hereby other than (i) registration of the Placement Shares under the Securities Act, (ii) any necessary qualification under the securities or blue sky laws of the various jurisdictions in which the Placement Shares are being offered by CF&Co, (iii) filing of any reports under the Exchange Act, (iv) such approvals obtained or to be obtained in connection with the approval of the listing of the Placement Shares on the NASDAQ or other Exchange, or (v) such approvals as may be required by the rules of the National Association of Securities Dealers (“NASD”).

          (o)  No Preferential Rights. Except as set forth in the Registration Statement and the Prospectus, (i) no person, as such term is defined in Rule 1-02 of Regulation S-X promulgated under the Securities Act (each, a “Person”), has the right, contractual or otherwise, to cause the Company to issue or sell to such Person any shares of Common Stock or shares of any other capital stock or other securities of the Company, (ii) no Person has any preemptive rights, resale rights, rights of first refusal, or any other rights (whether pursuant to a “poison pill” provision or otherwise) to purchase any shares of Common Stock or shares of any other capital stock or other securities of the Company, (iii) no Person has the right to act as an underwriter or as a financial advisor to the Company in connection with the offer and sale of the Shares, and (iv) no Person has the right, contractual or otherwise, to require the Company to register under the Securities Act any shares of Common Stock or shares of any other capital stock or other securities of the Company (other than the registration rights provided in the Asset Purchase Agreement dated December 4, 2006 with Edward Lifesciences, LLC), or to include any such shares or other

securities in the Registration Statement or the offering contemplated thereby, whether as a result of the filing or effectiveness of the Registration Statement or the sale of the Placement Shares as contemplated thereby or otherwise.

          (p)  Independent Public Accountant. Ernst & Young LLP (“Ernst & Young”), whose report on the audited consolidated financial statements of the Company is filed with the Commission as part of the Registration Statement and the Prospectus, are and, during the periods covered by their report, were independent public accountants within the meaning of the Securities Act and the Public Accounting Oversight Board (United States).

          (q)  Enforceability of Agreements. To the knowledge of the Company, all agreements between the Company and third parties expressly referenced in the Prospectus are legal, valid and binding obligations of the Company enforceable in accordance with their respective terms, except to the extent that (i) enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and by general equitable principles and (ii) the indemnification provisions of certain agreements may be limited be federal or state securities laws or public policy considerations in respect thereof and except for any unenforceability that, individually or in the aggregate, would not unreasonably be expected to have a Material Adverse Effect.

          (r)  No Litigation. Except as disclosed in the Registration Statement, there are no actions, suits, claims, investigations, inquiries or proceedings pending or, to the best of the Company’s knowledge, threatened to which either the Company or, to the Company’s knowledge, none of the Subsidiaries, nor any of their respective officers or directors is a party or of which any of their respective properties or other assets is subject at law or in equity, or before or by any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency that could reasonably be expected to result in a judgment, decree or order having individually or in the aggregate a Material Adverse Effect or prevent, or interfere in any material respect with the consummation of the transactions contemplated hereby.

          (s)  Insurance. The Company and each of its Subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent and customary in the businesses in which they are engaged or propose to engage after giving effect to the transactions described in the Registration Statement and the Prospectus; all policies of insurance and fidelity or surety bonds insuring the Company and each of its Subsidiaries and their businesses, assets, employees, officers and directors are in full force and effect; the Company and each of its Subsidiaries is in compliance with the terms of such policies and instruments in all material respects; and the Company and each of its Subsidiaries has no reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that is not materially greater than the current cost.

          (t)  Regulatory Filings. Neither the Company nor any of its Subsidiaries has failed to file with the applicable regulatory authorities (including, without limitation, the FDA or any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA) any filing, declaration, listing, registration, report or submission; all such filings, declarations, listings, registrations, reports or submissions were in compliance with applicable laws when filed and no deficiencies have been asserted by any applicable regulatory

authority with respect to any such filings, declarations, listings, registrations, reports or submissions.

          (u)  Market Capitalization. As of the date of this Agreement, the aggregate market value of the Company’s voting stock held by nonaffiliates of the Company was equal to or greater than $150 million.

          (v)  Certain Market Activities. Neither the Company nor, to the Company’s knowledge, any of the Subsidiaries, nor, to the Company’s knowledge, any of their respective directors, officers or controlling persons has taken, directly or indirectly, any action designed, or that has constituted or might reasonably be expected to cause or result in, under the Exchange Act or otherwise, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Placement Shares.

          (w)  Broker/Dealer Relationships. Neither the Company nor any of the Subsidiaries or any related entities (i) is required to register as a “broker” or “dealer” in accordance with the provisions of the Exchange Act or (ii) directly or indirectly through one or more intermediaries, controls or is a “person associated with a [NASD] member” or “associated person of a [NASD] member” (within the meaning of Article I of the Bylaws of the NASD).

          (x)  No Reliance. The Company has not relied upon CF&Co or legal counsel for CF&Co for any legal, tax or accounting advice in connection with the offering and sale of the Placement Shares.

          (y)  Taxes. The Company and its Subsidiaries have timely filed all federal, state, local and foreign income and franchise tax returns (or timely filed applicable extensions therefore) required to be filed and are not in default in the payment of any taxes which were payable pursuant to said returns or any assessments with respect thereto, other than any which the Company or any of its Subsidiaries is contesting in good faith and for which adequate reserves have been provided.

          (z)  Title to Real and Personal Property. The Company and each of its Subsidiaries have good and valid title to all property (whether real or personal) described in the Registration Statement and the Prospectus as being owned by each of them, in each case free and clear of all liens, claims, security interests, other encumbrances or defects except such as are described in the Registration Statement and the Prospectus and those that do not materially and adversely affect the value of such property and do not materially interfere with the use made of such property by the Company. All of the property described in the Registration Statement and the Prospectus as being held under lease by the Company or a Subsidiary is held thereby under valid, subsisting and enforceable leases, without any liens, restrictions, encumbrances or claims, except those that (i) do not materially interfere with the use made or proposed to be made of such property by the Company or any of its Subsidiaries or (ii) would not, individually or in the aggregate, have a Material Adverse Effect.

          (aa)  Intellectual Property. Except as set forth in the Prospectus, the Company and its Subsidiaries own, possess, license or have other rights to use all foreign and domestic patents, patent applications, trade and service marks, trade and service mark registrations, trade names, copyrights, licenses, inventions, trade secrets, technology, Internet domain names, know-how

and other intellectual property (collectively, the “Intellectual Property”), necessary for the conduct of their respective businesses as now conducted or as proposed in the Prospectus to be conducted except to the extent that the failure to own or possess adequate rights to use such Intellectual Property would not, individually or in the aggregate, have a Material Adverse Effect. Except as set forth in the Prospectus, (a) there are no rights of third parties to any such Intellectual Property owned by the Company and its Subsidiaries; (b) to the Company’s knowledge, there is no infringement by third parties of any such Intellectual Property; (c) to the Company’s knowledge, there is no pending or threatened action, suit, proceeding or claim by others challenging the Company’s and its Subsidiaries’ rights in or to any such Intellectual Property; (d) to the Company’s knowledge, there is no pending or threatened action, suit, proceeding or claim by others challenging the validity or scope of any such Intellectual Property; (e) there is no pending or, to the Company’s knowledge, threatened action, suit, proceeding or claim by others that the Company and its Subsidiaries infringe or otherwise violate any patent, trademark, copyright, trade secret or other proprietary rights of others; (f) to the Company’s knowledge, there is no third-party U.S. patent or published U.S. patent application which contains claims for which an Interference Proceeding (as defined in 35 U.S.C. § 135) have been commenced against any patent or patent application described in the Prospectus as being owned by or licensed to the Company; and (g) the Company and its Subsidiaries have taken all reasonable steps necessary to perfect its ownership of the Intellectual Property, in each of clauses (a)-(g) except for such infringement, conflict or action which would not, singularly or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

          (bb)  Clinical Studies. The clinical, pre-clinical and other studies and tests conducted by or on behalf of or sponsored by the Company and its Subsidiaries were and, if still pending, are being conducted in accordance in all material respects with all statutes, laws, rules and regulations, as applicable (including, without limitation, those administered by the FDA or by any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA). The descriptions in the Registration Statement and Prospectus of the results of such studies and tests are accurate and complete in all material respects and fairly present the published data derived from such studies and tests. Except as set forth in the Registration Statement and the Prospectus neither the Company nor any of its Subsidiaries have received any notices or other correspondence from the FDA or any other foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA with respect to any ongoing clinical or pre-clinical studies or tests requiring the termination or suspension of such studies or tests.

          (cc)  Compliance Program. The Company has established and administers a compliance program applicable to the Company, to assist the Company and the directors, officers and employees of the Company in complying with applicable regulatory guidelines (including, without limitation, those administered by the FDA and any other foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA).

          (dd)  Environmental Laws. The Company and its Subsidiaries: (i) are in compliance with any and all applicable federal, state, local and foreign laws, rules, regulations, decisions and orders relating to the protection of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”);

(ii) have received and are in compliance with all permits, licenses and other approvals required of them under applicable Environmental Laws to conduct their respective businesses as described in the Registration Statement and the Prospectus; and (iii) have not received notice of any actual or potential liability for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, except, in the case of any of clauses (i), (ii) or (iii) above, for any such failure to comply or failure to receive required permits, licenses, or other approvals or any such liability as would not, individually or in the aggregate, have a Material Adverse Effect.

          (ee)  Accounting Controls. The Company and each of its Subsidiaries maintains a system of internal accounting controls sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorization; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain accountability for assets; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

          (ff)  Disclosure Controls. The Company has established and maintains disclosure controls and procedures (as such term is defined in Rule 13a-15e and 15d-15e under the Exchange Act), which are designed to ensure that material information relating to the Company is made known to the Company’s principal executive officer and its principal financial officer by others within those entities, particularly during the periods in which the periodic reports required under the Exchange Act are being prepared, and that such disclosure controls and procedures are appropriate to allow timely decisions regarding required disclosure to be included in the Company’s periodic filings under the Exchange Act. The Company’s certifying officers have evaluated the effectiveness of the Company’s disclosure controls and procedures as of the most recently ended quarter (such date, the “Evaluation Date”). The Company presented in its most recently filed periodic report 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 significant changes in the Company’s internal control over financial reporting (as such term is defined in Exchange Act Rules 13a-15 and 15d-15) or, to the Company’s knowledge, in other factors that could significantly affect the Company’s internal controls.

          (gg)  Sarbanes-Oxley. The principal executive officer and principal financial officer of the Company have made all certifications required by Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 and the rules and regulations promulgated in connection therewith (the “Sarbanes-Oxley Act”) with respect to all reports, schedules, forms, statements and other documents required to be filed by it with the Commission, and the statements contained in any such certification are complete and correct. The Company, and to its knowledge after due inquiry, all of the Company’s directors or officers, in their capacities as such, is in compliance in all material respects with all applicable effective provisions of the Sarbanes-Oxley Act (and intends to comply with all applicable provisions that are not yet effective upon effectiveness).

          (hh)  Finder’s Fees. Neither the Company nor any of the Subsidiaries has incurred any liability for any finder’s fees, broker’s fee, or similar payments in connection with the

transactions herein contemplated, except as may otherwise exist with respect to CF&Co pursuant to this Agreement.

          (ii)  Labor Disputes. There are no existing or threatened labor disputes with the employees of the Company or, to the Company’s knowledge, any Subsidiary that, individually or in the aggregate, could reasonably be expected to have individually or in the aggregate a Material Adverse Effect.

          (jj)  Investment Company Act. Neither the Company nor any of the Subsidiaries, after giving effect to the offering and sale of the Placement Shares, will 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”).

          (kk)  Casualty. Neither the Company nor, to the Company’s knowledge, any of the Subsidiaries has sustained since the date of the last audited financial statements included in the Registration Statement, and the Prospectus any loss or interference with its respective business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, in each case that, individually or in the aggregate, could reasonably be expected to have a Material Adverse Effect.

          (ll)  ERISA. The Company and the Subsidiaries are in compliance with all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”), except for any noncompliance that, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect.. No “reportable event” (as defined in section 4043 of ERISA) for which the Pension Benefit Guaranty Corporation has not waived the notice requirement has occurred in the past three years with respect to any “pension plan” (as defined in ERISA) for which the Company and the Subsidiaries would reasonably expect to have any liability. The Company and the Subsidiaries have not incurred and do not reasonably expect to incur liability under (i) Title IV of ERISA with respect to termination of, or withdrawal from, any “pension plan” or (ii) Sections 412 or 4971 of the Code. Each “pension plan” for which the Company or the Subsidiaries would have any liability that is intended to be qualified under Section 401(a) of the Code has received a favorable determination or opinion letter to that effect and, to the Company’s knowledge , no event has occurred since the date of such letter that could reasonably be expected to result in the loss of such qualification.

          (mm)  Forward Looking Statements. No forward looking statement within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act contained in the Prospectus, the Registration Statement, or any other document filed with the Commission has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

          (nn)  CF&Co Purchases. The Company acknowledges and agrees that CF&Co has informed the Company that CF&Co may, to the extent permitted under the Securities Act and the Exchange Act, purchase and sell shares of Common Stock for its own account while this Agreement is in effect, provided, that (i) no such purchase or sales shall take place while a Placement Notice is in effect (except to the extent CF&Co may engage in sales of Placement Shares purchased or deemed purchased from the Company as a “riskless principal” or in a

similar capacity) and (ii) the Company shall not be deemed to have authorized or consented to any such purchases or sales by CF&Co.

          (oo)  No Improper Practices. (i) Neither the Company nor, to the Company’s knowledge, the Subsidiaries, nor to the Company’s knowledge, any of their respective executive officers has, in the past five years, made any unlawful contributions to any candidate for any political office (or failed fully to disclose any contribution in violation of law) or made any contribution or other payment to any official of, or candidate for, any federal, state, municipal, or foreign office or other person charged with similar public or quasi-public duty in violation of any law or of the character required to be disclosed in the Prospectus; (ii) no relationship, direct or indirect, exists between or among the Company or, to the Company’s knowledge, any Subsidiary or any affiliate of any of them, on the one hand, and the directors, officers and stockholders of the Company or, to the Company’s knowledge, any Subsidiary, on the other hand, that is required by the Securities Act to be described in the Registration Statement and the Prospectus that is not so described; (iii) no relationship, direct or indirect, exists between or among the Company or any Subsidiary or any affiliate of them, on the one hand, and the directors, officers, stockholders or directors of the Company or, to the Company’s knowledge, any Subsidiary, on the other hand, that is required by the rules of the NASD to be described in the Registration Statement and the Prospectus that is not so described; and (iv) except as described in the Prospectus, there are no material outstanding loans or advances or material guarantees of indebtedness by the Company or, to the Company’s knowledge, any Subsidiary to or for the benefit of any of their respective officers or directors or any of the members of the families of any of them.

          (pp)  Foreign Corrupt Practices. Neither the Company nor any of its Subsidiaries, nor, to the knowledge of the Company, any director, officer, agent or employee of the Company or its Subsidiaries, has, directly or indirectly, during the last five years, while acting on behalf of the Company or its Subsidiaries (i) used any corporate funds for unlawful contributions, gifts, entertainment or other unlawful expenses relating to political activity; (ii) made any unlawful payment to foreign or domestic government officials or employees or to foreign or domestic political parties or campaigns from corporate funds; (iii) violated any provision of the Foreign Corrupt Practices Act of 1977, as amended; (iv) made any other unlawful bribe, rebate, payoff, influence, kickback or payment to any foreign or domestic government official or employee.

     7.   Covenants of the Company. The Company covenants and agrees with CF&Co that:

          (a)  Registration Statement Amendments. After the date of this Agreement and during any period in which a Prospectus relating to any Placement Shares is required to be delivered by CF&Co under the Securities Act, (i) the Company will notify CF&Co promptly when any subsequent amendment to the Registration Statement, other than documents incorporated by reference, has been filed with the Commission and/or has become effective, any subsequent supplement to the Prospectus has been filed and any request by the Commission for any amendment or supplement to the Registration Statement or Prospectus or for additional information has been received, (ii) the Company will prepare and file with the Commission, promptly upon CF&Co’s request, any amendments or supplements to the Registration Statement or Prospectus that, in CF&Co’s reasonable judgment, may be necessary or advisable in connection with the distribution of the Placement Shares by CF&Co (provided, however, that the failure of CF&Co to make such request shall not relieve the Company of any obligation or

liability hereunder, or affect CF&Co’s right to rely on the representations and warranties made by the Company in this Agreement); (iii) the Company will not file any amendment or supplement to the Registration Statement or Prospectus relating to the Placement Shares (except for documents incorporated by reference) unless a copy thereof has been submitted to CF&Co a reasonable period of time before the filing and CF&Co has not reasonably objected thereto (provided, however, (A) that the failure of CF&Co to make such objection shall not relieve the Company of any obligation or liability hereunder, or affect CF&Co’s right to rely on the representations and warranties made by the Company in this Agreement and (B) that the Company has no obligation to provide CF&Co any advance copy of such filing or to provide CF&Co an opportunity to object to such filing if such filing does not name CF&Co or does not relate to the transactions contemplated hereunder) and the Company will furnish to CF&Co at the time of filing thereof a copy of any document that upon filing is deemed to be incorporated by reference into the Registration Statement or Prospectus, except for those documents available via EDGAR; and (iv) the Company will cause each amendment or supplement to the Prospectus to be filed with the Commission as required pursuant to the applicable paragraph of Rule 424(b) of the Securities Act or, in the case of any document to be incorporated therein by reference, to be filed with the Commission as required pursuant to the Exchange Act, within the time period prescribed (the determination to file or not file any amendment or supplement with the Commission under this Section 7(a), based on the Company’s reasonable opinion or reasonable objections, shall be made exclusively by the Company).

          (b)  Notice of Commission Stop Orders. During any period in which a Prospectus relating to any Placement Shares is required to be delivered by CF&Co under the Securities Act, the Company will advise CF&Co, promptly after it receives notice or obtains knowledge thereof, of the issuance or threatened issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement, of the suspension of the qualification of the Placement Shares for offering or sale in any jurisdiction, or of the initiation or threatening of any proceeding for any such purpose; and it will promptly use its commercially reasonable efforts to prevent the issuance of any stop order or to obtain its withdrawal if such a stop order should be issued.

          (c)  Delivery of Prospectus; Subsequent Changes. During any period in which a Prospectus relating to the Placement Shares is required to be delivered by CF&Co under the Securities Act with respect to the offer and sale of the Placement Shares, the Company will use its best efforts to comply with all requirements imposed upon it by the Securities Act, as from time to time in force, and to file on or before their respective due dates all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, 15(d) or any other provision of or under the Exchange Act. If during such period any event occurs as a result of which the Prospectus as then amended or supplemented would include an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances then existing, not misleading, or if during such period it is necessary to amend or supplement the Registration Statement or Prospectus to comply with the Securities Act, the Company will promptly notify CF&Co to suspend the offering of Placement Shares during such period and the Company will promptly amend or supplement the Registration Statement or Prospectus (at the expense of the Company) so as to correct such statement or omission or effect such compliance.

          (d)  Listing of Placement Shares. During any period in which the Prospectus relating to the Placement Shares is required to be delivered by CF&Co under the Securities Act with respect to the offer and sale of the Placement Shares, the Company will use its commercially reasonable efforts to cause the Placement Shares to be listed on the Exchange and to qualify the Placement Shares for sale under the securities laws of such jurisdictions as CF&Co reasonably designates and to continue such qualifications in effect so long as required for the distribution of the Placement Shares; provided, however, that the Company shall not be required in connection therewith to qualify as a foreign corporation or dealer in securities or file a general consent to service of process in any jurisdiction.

          (e)  Delivery of Registration Statement and Prospectus. The Company will furnish to CF&Co and its counsel (at the expense of the Company) copies of the Registration Statement, the Prospectus (including all documents incorporated by reference therein) and all amendments and supplements to the Registration Statement or Prospectus that are filed with the Commission during any period in which a Prospectus relating to the Placement Shares is required to be delivered under the Securities Act (including all documents filed with the Commission during such period that are deemed to be incorporated by reference therein), in each case as soon as reasonably practicable and in such quantities as CF&Co may from time to time reasonably request and, at CF&Co’s request, will also furnish copies of the Prospectus to each exchange or market on which sales of the Placement Shares may be made; provided, however, that the Company shall not be required to furnish any document (other than the Prospectus) to CF&Co to the extent such document is available on EDGAR.

          (f)  Earnings Statement. The Company will make generally available to its security holders as soon as practicable, that satisfies the provisions of Section 11(a) and Rule 158 of the Securities Act. Any document or information filed with the Commission and available on EDGAR shall be deemed to be delivered for purposes of this section.

          (g)  Expenses. The Company, whether or not the transactions contemplated hereunder are consummated or this Agreement is terminated, in accordance with the provisions of Section 11 hereunder, will pay all reasonable expenses incident to the performance of its obligations hereunder, including, but not limited to, expenses relating to (i) the preparation, printing and filing of the Registration Statement and each amendment and supplement thereto, of each Prospectus and of each amendment and supplement thereto, (ii) the preparation, issuance and delivery of the Placement Shares, (iii) the qualification of the Placement Shares under securities laws in accordance with the provisions of Section 7(d) of this Agreement, including filing fees and any reasonable fees or disbursements of counsel for CF&Co in connection therewith, (iv) the printing and delivery to CF&Co of copies of the Prospectus and any amendments or supplements thereto, and of this Agreement, (v) the fees and expenses incurred in connection with the listing or qualification of the Placement Shares for trading on the Exchange, (vi) filing fees and expenses, if any, of the Commission and the NASD Corporate Finance Department.

          (h)  Use of Proceeds. The Company will use the Net Proceeds as described in the Prospectus in the section entitled “Use of Proceeds.”

          (i)  Notice of Other Sales. During either the pendency of any Placement Notice given hereunder, or any period in which the Prospectus relating to the Placement Shares is required to be delivered by CF&Co, the Company shall provide CF&Co notice as promptly as reasonably

possible before it offers to sell, contracts to sell, sells, grants any option to sell or otherwise disposes of any shares of Common Stock (other than Placement Shares offered pursuant to the provisions of this Agreement) or securities convertible into or exchangeable for Common Stock, warrants or any rights to purchase or acquire Common Stock; provided, that such notice shall not be required in connection with the (i) issuance, grant or sale of Common Stock, options to purchase shares of Common Stock or Common Stock issuable upon the exercise of options or other equity awards pursuant to the the 1995 Stock Option Plan, the 2000 Stock Incentive Plan, the 2000 Employee Stock Repurchase Plan (each as amended to date and hereafter amended) and any stock option plans, deferred compensation plans, restricted stock plans and employee stock purchase plans hereafter adopted in compliance with the NASD Marketplace Rule 4350(i)(1)(D) or (ii) the issuance or sale of Common Stock pursuant to any dividend reinvestment plan that the Company may adopt from time to time provided the implementation of such is disclosed to CF & Co. in advance or (iii) the issuance of Common Stock upon the exercise of any currently outstanding warrant.

          (j)  Change of Circumstances. The Company will, at any time during the pendency of a Placement Notice, advise CF&Co promptly after it shall have received notice or obtained knowledge thereof, of any information or fact that would alter or affect in any material respect any opinion, certificate, letter or other document required to be provided to CF&Co pursuant to this Agreement.

          (k)  Due Diligence Cooperation. The Company will cooperate with any reasonable due diligence review conducted by CF&Co or its agents in connection with the transactions contemplated hereby, including, without limitation, providing information and making available documents and senior corporate officers, during regular business hours and at the Company’s principal offices, as CF&Co may reasonably request.

          (l)  Required Filings Relating to Placement of Placement Shares. The Company agrees that on such dates as the Securities Act shall require, the Company will (i) file a prospectus supplement with the Commission under the applicable paragraph of Rule 424(b) under the Securities Act (each and every filing under Rule 424(b), a “Filing Date”), which prospectus supplement will set forth, within the relevant period, the amount of Placement Shares sold through CF&Co, the Net Proceeds to the Company and the compensation payable by the Company to CF&Co with respect to such Placement Shares, and (ii) deliver such number of copies of each such prospectus supplement to each exchange or market on which such sales were effected as may be required by the rules or regulations of such exchange or market.

          (m)  Representation Dates; Certificate. During the term of this Agreement, on the date of the first Placement Notice given hereunder and each time the Company (i) files the Prospectus relating to the Placement Shares or amends or supplements the Registration Statement or the Prospectus relating to the Placement Shares (other than a prospectus supplement filed in accordance with Section 7(l) of this Agreement) by means of a post-effective amendment, sticker, or supplement but not by means of incorporation of document(s) by reference to the Registration Statement or the Prospectus relating to the Placement Shares; (ii) files an annual report on Form 10-K under the Exchange Act; (iii) files its quarterly reports on Form 10-Q under the Exchange Act; (iv) files a report on Form 8-K containing amended financial information (other than an earnings release, to “furnish” information pursuant to Items 2.02 or 7.01 of Form 8-K or to provide disclosure pursuant to Item 8.01 of Form 8-K relating to the reclassifications of

certain properties as discontinued operations in accordance with Statement of Financial Accounting Standards No. 144) under the Exchange Act (each date of filing of one or more of the documents referred to in clauses (i) through (iv) shall be a “Representation Date”); the Company shall furnish CF&Co with a certificate, in the form attached hereto as Exhibit 7(m). The requirement to provide a certificate under this Section 7(m) shall be waived for any Representation Date occurring at a time at which no Placement Notice is pending, which waiver shall continue until the earlier to occur of the date the Company issues a Placement Notice hereunder (which for such calendar quarter shall be considered a Representation Date) and the next occurring Representation Date. Notwithstanding the foregoing, if the Company subsequently issues a Replacement Notice following a Representation Date when the Company relied on such waiver and did not provide CF&Co with a certificate under this Section 7(m), then the Company shall provide CF&Co with a certificate, in the form attached hereto as Exhibit 7(m), dated the date of the Placement Notice.

          (n)  Legal Opinion. On the date of the first Placement Notice given hereunder and thereafter within five (5) Trading Days of each Representation Date with respect to which the Company is obligated to deliver a certificate in the form attached hereto as Exhibit 7(m) for which no waiver is applicable, the Company shall cause to be furnished to CF&Co a written opinion of Morgan Lewis & Bockius LLP (the “Company Counsel”), dated the Representation Date, substantially similar to the form attached hereto as Exhibit 7(n)(1) (for the date of the first Placement Notice given hereunder), and Exhibit 7(n)(2) (for subsequent Representation Dates), modified, as necessary, to relate to the Registration Statement and the Prospectus as then amended or supplemented; provided, however, that in lieu of such opinions, counsel may furnish CF&Co with a letter to the effect that CF&Co may rely on a prior opinion delivered under this Section 7(n) to the same extent as if it were dated the date of such letter (except that statements in such prior opinion shall be deemed to relate to the Registration Statement and the Prospectus as amended or supplemented at such Representation Date).

          (o)  Comfort Letter. On the date of the first Placement Notice given hereunder and thereafter within five (5) Trading Days of the Representation Date or any period in which the Prospectus relating to the Placement Shares is required to be delivered by CF&Co, each time that the Registration Statement is amended or the Prospectus supplemented to include additional amended financial information or there is filed with the Commission any document incorporated by reference into the Prospectus that contains additional amended financial information (other than an earnings release, to “furnish” information pursuant to Items 2.02 or 7.01 of Form 8-K or to provide disclosure pursuant to Item 8.01 of Form 8-K relating to the reclassifications of certain properties as discontinued operations in accordance with Statement of Financial Accounting Standards No. 144), the Company shall cause its independent accountants to furnish CF&Co letters (the “Comfort Letters”), dated the date of such Representation Date, in form and substance satisfactory to CF&Co, (i) confirming that they are independent public accountants within the meaning of the Securities Act and are in compliance with the applicable requirements relating to the qualification of accountants under Rule 2-01 of Regulation S-X of the Commission, (ii) stating, as of such date, the conclusions and findings of such firm with respect to the financial information and other matters ordinarily covered by accountants’ “comfort letters” to underwriters in connection with registered public offerings (the first such letter, the “Initial Comfort Letter”) and (iii) updating the Initial Comfort Letter with any information that would have been included in the Initial Comfort Letter had it been given on

such date and modified as necessary to relate to the Registration Statement and the Prospectus, as amended and supplemented to the date of such letter. The requirement to provide a Comfort Letter under this Section 7(o) shall be waived for any Representation Date occurring at a time at which no Placement Notice is pending, which waiver shall continue until the earlier to occur of the date the Company issues a Placement Notice hereunder (which for such calendar quarter shall be considered a Representation Date) and the next occurring Representation Date. Notwithstanding the foregoing, if the Company subsequently decides to sell Placement Shares following a Representation Date when the Company relied on such waiver and did not provide CF&Co with a Comfort Letter under this Section 7(o), then before CF&Co either delivers the Placement Notice or sells any Placement Shares, the Company shall provide CF&Co with a Comfort Letter dated the date of the Placement Notice.

          (p)  Market Activities. The Company will not, directly or indirectly take any action designed to cause or result in, or that constitutes or might reasonably be expected to constitute, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Placement Shares.

          (q)  Investment Company Act. The Company will conduct its affairs in such a manner so as to reasonably ensure that neither it nor the Subsidiaries will be or become, at any time prior to the termination of this Agreement, an “investment company,” as such term is defined in the Investment Company Act, assuming no change in the Commission’s current interpretation as to entities that are not considered an investment company.

          (r)  Sarbanes-Oxley Act. The Company and the Subsidiaries will maintain and keep accurate books and records reflecting their assets and maintain internal accounting controls in a manner designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and including those policies and procedures that (i) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the Company, (ii) provide reasonable assurance that transactions are recorded as necessary to permit the preparation of the Company’s consolidated financial statements in accordance with generally accepted accounting principals , (iii) that receipts and expenditures of the Company are being made only in accordance with management’s and the Company’s directors’ authorization, and (iv) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company’s assets that could have a material effect on its financial statements. The Company and the Subsidiaries will maintain such controls and other procedures, including, without limitation, those required by Sections 302 and 906 of the Sarbanes-Oxley Act, and the applicable regulations thereunder that are designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms, including, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its Chief Executive Officer and principal financial officer, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure and to ensure that material information relating to the Company or the Subsidiaries is made known to them by others within those entities,

particularly during the period in which such periodic reports are being prepared. The Company and the Subsidiaries will use their best efforts to comply with all effective applicable provisions of the Sarbanes-Oxley Act.

     8.   Conditions to CF&Co’s Obligations. The obligations of CF&Co hereunder with respect to a Placement will be subject to the continuing accuracy and completeness of the representations and warranties made by the Company herein, to the due performance by the Company of its obligations hereunder, to the completion by CF&Co of a due diligence review satisfactory to CF&Co in its reasonable judgment, and to the continuing satisfaction (or waiver by CF&Co in its sole discretion) of the following additional conditions:

          (a)  Registration Statement Effective. The Registration Statement shall have become effective and shall be available for the (i) resale of all Placement Shares issued to CF&Co and not yet sold by CF&Co and (ii) the sale of all Placement Shares contemplated to be issued by any Placement Notice.

          (b)  No Material Notices. None of the following events shall have occurred and be continuing: (i) receipt by the Company of any request for additional information from the Commission or any other federal or state governmental authority during the period of effectiveness of the Registration Statement, the response to which would require any post-effective amendments or supplements to the Registration Statement or the Prospectus; (ii) the issuance by the Commission or any other federal or state governmental authority of any stop order suspending the effectiveness of the Registration Statement or the initiation of any proceedings for that purpose; (iii) receipt by the Company of any notification with respect to the suspension of the qualification or exemption from qualification of any of the Placement Shares for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; (iv) the occurrence of any event that makes any material statement made in the Registration Statement or the Prospectus or any material document incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires the making of any changes in the Registration Statement, related Prospectus or documents so that, in the case of the Registration Statement, it will not contain any materially untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading and, that in the case of the Prospectus, it will not contain any materially untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

          (c)  Material Changes. Except as contemplated in the Prospectus, or disclosed in the Company’s reports filed with the Commission, there shall not have been any material adverse change, on a consolidated basis, in the authorized capital stock of the Company or any Material Adverse Effect, or any development that could reasonably be expected to cause a Material Adverse Effect, or a downgrading in or withdrawal of the rating assigned to any of the Company’s securities (other than asset backed securities) by any rating organization or a public announcement by any rating organization that it has under surveillance or review its rating of any of the Company’s securities (other than asset backed securities), the effect of which, in the case of any such action by a rating organization described above, in the reasonable judgment of CF&Co (without relieving the Company of any obligation or liability it may otherwise have), is

so material as to make it impracticable or inadvisable to proceed with the offering of the Placement Shares on the terms and in the manner contemplated in the Prospectus.

          (d)  Legal Opinion. CF&Co shall have received the opinions of Company Counsel required to be delivered pursuant Section 7(n) on or before the date on which such delivery of such opinion is required pursuant to Section 7(n).

          (e)  Comfort Letter. CF&Co shall have received the Comfort Letter required to be delivered pursuant Section 7(o) on or before the date on which such delivery of such opinion is required pursuant to Section 7(o).

          (f)  Representation Certificate. CF&Co shall have received the certificate required to be delivered pursuant to Section 7(m) on or before the date on which delivery of such certificate is required pursuant to Section 7(m).

          (g)  No Suspension. Trading in the Shares shall not have been suspended on the Exchange.

          (h)  Other Materials. On each date on which the Company is required to deliver a certificate pursuant to Section 7(m), the Company shall have furnished to CF&Co such appropriate further information, certificates and documents as CF&Co may reasonably request. All such opinions, certificates, letters and other documents will be in compliance with the provisions hereof. The Company will furnish CF&Co with such conformed copies of such opinions, certificates, letters and other documents as CF&Co shall reasonably request.

          (i)  Securities Act Filings Made. All filings with the Commission required by Rule 424 under the Securities Act to have been filed prior to the issuance of any Placement Notice hereunder shall have been made within the applicable time period prescribed for such filing by Rule 424.

          (j)  Approval for Listing. The Placement Shares shall either have been (i) approved for listing on the Exchange, subject only to notice of issuance, or (ii) the Company shall have filed an application for listing of the Placement Shares on the Exchange at, or prior to, the issuance of any Placement Notice.

          (k)  No Termination Event. There shall not have occurred any event that would permit CF&Co to terminate this Agreement pursuant to Section 11(a).

     9.   Indemnification and Contribution.

          (a)  Company Indemnification. The Company agrees to indemnify and hold harmless CF&Co, the directors, officers, partners, employees and agents of CF&Co and each person, if any, who (i) controls CF&Co within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, or (ii) is controlled by or is under common control with CF&Co (a “CF&Co Affiliate”) from and against any and all losses, claims, liabilities, expenses and damages (including, but not limited to, any and all reasonable investigative, legal and other expenses incurred in connection with, and any and all amounts paid in settlement (in accordance with Section 9(a)) of, any action, suit or proceeding between any of the indemnified parties and

any indemnifying parties or between any indemnified party and any third party, or otherwise, or any claim asserted), as and when incurred, to which CF&Co, or any such person, may become subject under the Securities Act, the Exchange Act or other federal or state statutory law or regulation, at common law or otherwise, insofar as such losses, claims, liabilities, expenses or damages arise out of or are based, directly or indirectly, on (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or the Prospectus or any amendment or supplement to the Registration Statement or the Prospectus or (ii) the omission or alleged omission to state in such document a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made in the case of the Prospectus, not misleading; provided, however, that this indemnity agreement shall not apply to the extent that such loss, claim, liability, expense or damage arises from the sale of the Placement Shares pursuant to this Agreement and is caused directly or indirectly by an untrue statement or omission made in reliance on and in conformity with information relating to CF&Co and furnished in writing to the Company by CF&Co expressly for inclusion in any document described in clause (a)(i) above. This indemnity agreement will be in addition to any liability that the Company might otherwise have.

          (b)  CF&Co Indemnification. CF&Co agrees to indemnify and hold harmless the Company and its directors and each officer of the Company who signed the Registration Statement, and each person, if any, who (i) controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act or (ii) is controlled by or is under common control with the Company (a “Company Affiliate”) against any and all loss, liability, claim, damage and expense described in the indemnity contained in Section 9(a), as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendments thereto) or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with written information relating to CF&Co and furnished to the Company by CF&Co expressly for inclusion in any document as described in Section 9(a).

          (c)  Procedure. Any party that proposes to assert the right to be indemnified under this Section 9 will, promptly after receipt of notice of commencement of any action against such party in respect of which a claim is to be made against an indemnifying party or parties under this Section 9, notify each such indemnifying party of the commencement of such action, enclosing a copy of all papers served, but the omission so to notify such indemnifying party will not relieve the indemnifying party from (i) any liability that it might have to any indemnified party otherwise than under this Section 9 and (ii) any liability that it may have to any indemnified party under the foregoing provision of this Section 9 unless, and only to the extent that, such omission results in the forfeiture of substantive rights or defenses by the indemnifying party. If any such action is brought against any indemnified party and it notifies the indemnifying party of its commencement, the indemnifying party will be entitled to participate in and, to the extent that it elects by delivering written notice to the indemnified party promptly after receiving notice of the commencement of the action from the indemnified party, jointly with any other indemnifying party similarly notified, to assume the defense of the action, with counsel reasonably satisfactory to the indemnified party, and after notice from the indemnifying party to the indemnified party of its election to assume the defense, the indemnifying party will not be liable to the indemnified party for any legal or other expenses except as provided below and except for the reasonable costs of investigation subsequently incurred by the indemnified party in

connection with the defense. The indemnified party will have the right to employ its own counsel in any such action, but the fees, expenses and other charges of such counsel will be at the expense of such indemnified party unless (1) the employment of counsel by the indemnified party has been authorized in writing by the indemnifying party, (2) the indemnified party has reasonably concluded (based on advice of counsel) that there may be legal defenses available to it or other indemnified parties that are different from or in addition to those available to the indemnifying party, (3) a conflict or potential conflict exists (based on advice of counsel to the indemnified party) between the indemnified party and the indemnifying party (in which case the indemnifying party will not have the right to direct the defense of such action on behalf of the indemnified party) or (4) the indemnifying party has not in fact employed counsel to assume the defense of such action within a reasonable time after receiving notice of the commencement of the action, in each of which cases the reasonable fees, disbursements and other charges of counsel will be at the expense of the indemnifying party or parties. It is understood that the indemnifying party or parties shall not, in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the reasonable fees, disbursements and other charges of more than one separate firm admitted to practice in such jurisdiction at any one time for all such indemnified party or parties. All such fees, disbursements and other charges will be reimbursed by the indemnifying party promptly as they are incurred. An indemnifying party will not, in any event, be liable for any settlement of any action or claim effected without its written consent. No indemnifying party shall, without the prior written consent of each indemnified party, settle or compromise or consent to the entry of any judgment in any pending or threatened claim, action or proceeding relating to the matters contemplated by this Section 9 (whether or not any indemnified party is a party thereto), unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability arising or that may arise out of such claim, action or proceeding.

          (d)  Contribution. In order to provide for just and equitable contribution in circumstances in which the indemnification provided for in the foregoing paragraphs of this Section 9 is applicable in accordance with its terms but for any reason is held to be unavailable from the Company or CF&Co, the Company and CF&Co will contribute to the total losses, claims, liabilities, expenses and damages (including any investigative, legal and other expenses reasonably incurred in connection with, and any amount paid in settlement of, any action, suit or proceeding or any claim asserted, but after deducting any contribution received by the Company from persons other than CF&Co, such as persons who control the Company within the meaning of the Securities Act, officers of the Company who signed the Registration Statement and directors of the Company, who also may be liable for contribution) to which the Company and CF&Co may be subject in such proportion as shall be appropriate to reflect the relative benefits received by the Company on the one hand and CF&Co on the other. The relative benefits received by the Company on the one hand and CF&Co on the other hand shall be deemed to be in the same proportion as the total net proceeds from the sale of the Placement Shares (before deducting expenses) received by the Company bear to the total compensation received by CF&Co from the sale of Placement Shares on behalf of the Company. If, but only if, the allocation provided by the foregoing sentence is not permitted by applicable law, the allocation of contribution shall be made in such proportion as is appropriate to reflect not only the relative benefits referred to in the foregoing sentence but also the relative fault of the Company, on the one hand, and CF&Co, on the other, with respect to the statements or omission that resulted in such loss, claim, liability, expense or damage, or action in respect thereof, as well as any other

relevant equitable considerations with respect to such offering. Such relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or CF&Co, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company and CF&Co agree that it would not be just and equitable if contributions pursuant to this Section 9(d) were to be determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to herein. The amount paid or payable by an indemnified party as a result of the loss, claim, liability, expense, or damage, or action in respect thereof, referred to above in this Section 9(d) shall be deemed to include, for the purpose of this Section 9(d), any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim to the extent consistent with Section 9(c) hereof. Notwithstanding the foregoing provisions of this Section 9(d), CF&Co shall not be required to contribute any amount in excess of the commissions received by it under this Agreement and no person found guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this Section 9(d), any person who controls a party to this Agreement within the meaning of the Securities Act, and any officers, directors, partners, employees or agents of CF&Co, will have the same rights to contribution as that party, and each officer of the Company who signed the Registration Statement will have the same rights to contribution as the Company, subject in each case to the provisions hereof. Any party entitled to contribution, promptly after receipt of notice of commencement of any action against such party in respect of which a claim for contribution may be made under this Section 9(d), will notify any such party or parties from whom contribution may be sought, but the omission to so notify will not relieve that party or parties from whom contribution may be sought from any other obligation it or they may have under this Section 9(d) except to the extent that the failure to so notify such other party materially prejudiced the substantive rights or defenses of the party from whom contribution is sought. Except for a settlement entered into pursuant to the last sentence of Section 9(c) hereof, no party will be liable for contribution with respect to any action or claim settled without its written consent if such consent is required pursuant to Section 9(c) hereof.

     10.   Representations and Agreements to Survive Delivery. All representations and warranties of the Company herein or in certificates delivered pursuant hereto shall survive, as of their respective dates, regardless of (i) any investigation made by or on behalf of CF&Co, any controlling persons, or the Company (or any of their respective officers, directors or controlling persons), (ii) delivery and acceptance of the Placement Shares and payment therefor or (iii) any termination of this Agreement.

     11.   Termination.

          (a)  CF&Co shall have the right by giving notice as hereinafter specified at any time to terminate this Agreement if (i) any Material Adverse Effect, or any development that has actually occurred and that is reasonably expected to cause a Material Adverse Effect has occurred that, in the reasonable judgment of CF&Co, may materially impair the ability of CF&Co to sell the Placement Shares hereunder, (ii) the Company shall have failed, refused or been unable to perform any agreement on its part to be performed hereunder; provided, however,

in the case of any failure of the Company to deliver (or cause another person to deliver) any certification, opinion, or letter required under Sections 7(m), 7(n), or 7(o), CF&Co’s right to terminate shall not arise unless such failure to deliver (or cause to be delivered) continues for more than thirty (30) days from the date such delivery was required to which such delivery was required; or (iii) any other condition of CF&Co’s obligations hereunder is not fulfilled, or (iv), any suspension or limitation of trading in the Placement Shares or in securities generally on the Exchange shall have occurred. Any such termination shall be without liability of any party to any other party except that the provisions of Section 7(g) (Expenses), Section 9 (Indemnification), Section 10 (Survival of Representations), Section 16 (Applicable Law; Consent to Jurisdiction) and Section 17 (Waiver of Jury Trial) hereof shall remain in full force and effect notwithstanding such termination. If CF&Co elects to terminate this Agreement as provided in this Section 11(a), CF&Co shall provide the required notice as specified in Section 12 (Notices).

          (b)  The Company shall have the right, by giving ten (10) days notice as hereinafter specified to terminate this Agreement in its sole discretion at any time after the date of this Agreement. Any such termination shall be without liability of any party to any other party except that the provisions of Section 7(g), Section 9, Section 10, Section 16 and Section 17 hereof shall remain in full force and effect notwithstanding such termination.

          (c)  CF&Co shall have the right, by giving ten (10) days notice as hereinafter specified to terminate this Agreement in its sole discretion at any time after the date of this Agreement. Any such termination shall be without liability of any party to any other party except that the provisions of Section 7(g), Section 9, Section 10, Section 16 and Section 17 hereof shall remain in full force and effect notwithstanding such termination.

          (d)  Unless earlier terminated pursuant to this Section 11, this Agreement shall automatically terminate upon the issuance and sale of all of the Placement Shares through CF&Co on the terms and subject to the conditions set forth herein; provided that the provisions of Section 7(g), Section 9, Section 10, Section 16 and Section 17 hereof shall remain in full force and effect notwithstanding such termination.

          (e)  This Agreement shall remain in full force and effect unless terminated pursuant to Sections 11(a), (b), (c), or (d) above or otherwise by mutual agreement of the parties; provided, however, that any such termination by mutual agreement shall in all cases be deemed to provide that Section 7(g), Section 9, Section 10, Section 16 and Section 17 shall remain in full force and effect.

          (f)  Any termination of this Agreement shall be effective on the date specified in such notice of termination; provided, however, that such termination shall not be effective until the close of business on the date of receipt of such notice by CF&Co or the Company, as the case may be. If such termination shall occur prior to the Settlement Date for any sale of Placement Shares, such Placement Shares shall settle in accordance with the provisions of this Agreement.

     12.   Notices.

          All notices or other communications required or permitted to be given by any party to any other party pursuant to the terms of this Agreement shall be in writing and if sent to CF&Co, shall

be delivered to CF&Co at Cantor Fitzgerald & Co., 110 East 59th Street, New York, New York 10022, fax no. (212)  ###-###-####, Attention: ITD-Investment Banking, with copies to Stephen Merkel, General Counsel, at the same address, and DLA Piper US LLP, 1251 Avenue of the Americas, New York, NY 10020, fax no. (212)  ###-###-####, Attention: Dean M. Colucci; or if sent to the Company, shall be delivered to Sangamo Biosciences, Inc., 501 Canal Boulevard, Suite A100, Richmond, CA 94804 fax no. (510 ###-###-#### attention: Greg Zante, Vice President Finance and Administration, with a copy to Morgan, Lewis & Bockius LLP, One Market Place, San Fransico, CA 94105 fax no. (415)  ###-###-####, attention: John W. Larson. Each party to this Agreement may change such address for notices by sending to the parties to this Agreement written notice of a new address for such purpose. Each such notice or other communication shall be deemed given (i) when delivered personally or by verifiable facsimile transmission (with an original to follow) on or before 4:30 p.m., New York City time, on a Business Day or, if such day is not a Business Day, on the next succeeding Business Day, (ii) on the next Business Day after timely delivery to a nationally-recognized overnight courier and (iii) on the Business Day actually received if deposited in the U.S. mail (certified or registered mail, return receipt requested, postage prepaid). For purposes of this Agreement, “Business Day” shall mean any day on which the Exchange and commercial banks in the City of New York are open for business.

     13.   Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the Company and CF&Co and their respective successors and the affiliates, controlling persons, officers and directors referred to in Section 9 hereof. References to any of the parties contained in this Agreement shall be deemed to include the successors and permitted assigns of such party. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and permitted assigns any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. Neither party may assign its rights or obligations under this Agreement without the prior written consent of the other party.

     14.   Adjustments for Stock Splits. The parties acknowledge and agree that all share-related numbers contained in this Agreement shall be adjusted to take into account any stock split, stock dividend or similar event effected with respect to the Placement Shares.

     15.   Entire Agreement; Amendment; Severability. This Agreement (including all schedules and exhibits attached hereto and placement notices issued pursuant hereto) constitutes the entire agreement and supersedes all other prior and contemporaneous agreements and undertakings, both written and oral, among the parties hereto with regard to the subject matter hereof. Neither this Agreement nor any term hereof may be amended except pursuant to a written instrument executed by the Company and CF&Co. In the event that any one or more of the provisions contained herein, or the application thereof in any circumstance, is held invalid, illegal or unenforceable as written by a court of competent jurisdiction, then such provision shall be given full force and effect to the fullest possible extent that it is valid, legal and enforceable, and the remainder of the terms and provisions herein shall be construed as if such invalid, illegal or unenforceable term or provision was not contained herein, but only to the extent that giving effect to such provision and the remainder of the terms and provisions hereof shall be in accordance with the intent of the parties as reflected in this Agreement.

     16.   Applicable Law; Consent to Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the internal laws of the State of New York without regard to the principles of conflicts of laws. Each party hereby irrevocably submits 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 hereunder or in connection with any transaction contemplated hereby, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of 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 (certified or registered mail, return receipt requested) 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.

     17.   Waiver of Jury Trial. The Company and CF&Co each hereby irrevocably waives any right it may have to a trial by jury in respect of any claim based upon or arising out of this agreement or any transaction contemplated hereby.

     18.   Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Delivery of an executed Agreement by one party to the other may be made by facsimile transmission.

[Remainder of Page Intentionally Blank]

     If the foregoing correctly sets forth the understanding between the Company and CF&Co, please so indicate in the space provided below for that purpose, whereupon this letter shall constitute a binding agreement between the Company and CF&Co.

		Very truly yours,
		SANGAMO BIOSCIENCES, INC.
		By:		/s/ Greg Zante
				Name: Greg Zante Title: Vice President, Finance and Administration
		ACCEPTED as of the date first-above written:
		CANTOR FITZGERALD & CO.
		By:		/s/ Jeffrey Lumby
				Name: Jeffrey Lumby Title: Senior Managing Director,           Equity Capital Markets

SCHEDULE 1

FORM OF PLACEMENT NOTICE

From:		[		]
Cc:		[		]
To:		[		]
Subject:		Controlled Equity Offering—Placement Notice

Gentlemen:

Pursuant to the terms and subject to the conditions contained in the Controlled Equity Offering^SM Sales Agreement between Sangamo Biosciences, Inc. (the “Company”) and Cantor Fitzgerald & Co. (“CF&Co”) dated May 18, 2007 (the “Agreement”), I hereby request on behalf of the Company that CF&Co sell up to [ ] shares of the Company’s common stock, par value $0.01 per share, at a minimum market price of $                     per share.

SCHEDULE 2

CANTOR FITZGERALD & CO.

SANGAMO BIOSCIENCES, INC.

SCHEDULE 3

Compensation

CF&Co shall be paid compensation equal to five percent (5%) of the gross proceeds from the sales of Shares pursuant to the terms of this Agreement.

Exhibit 7(n)

MATTERS TO BE COVERED BY INITIAL OPINION OF

MORGAN LEWIS & BOCKIUS LLP

Exhibit 7(n)(2)

Matters to be covered by subsequent Company Counsel Opinions

Exhibit 7(m)

OFFICER CERTIFICATE

The undersigned, the duly qualified and elected                                         , of SANGAMO BIOSCIENCES, INC. (“Company”), a Delaware corporation, does hereby certify in such capacity and on behalf of the Company, pursuant to Section 7(m) of the Sales Agreement dated April [ ], 2007 (the “Sales Agreement”) between the Company and Cantor Fitzgerald & Co., that to the best of the knowledge of the undersigned.

          (i) The representations and warranties of the Company in Section 6 of the Sales Agreement (A) to the extent such representations and warranties are subject to qualifications and exceptions contained therein relation to materiality or Material Adverse Effect, are true and correct on and as of the date hereof, except for those representations and warranties that speak solely as of a specific date and which were true and correct as of such date, with the same force and effect as if expressly made on and as of the date hereof and (B) to the extent such representations and warranties are not subject to any qualifications or exceptions, are true and correct in all material respects as of the date hereof as if made on and as of the date hereof except for those representations and warranties that speak solely as of a specific date and which were true and correct as of such date, with the same force and effect as if expressly made on and as of the date hereof; and

          (ii) The Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied pursuant to the Sales Agreement at or prior to the date hereof.

						By:
								Name: Title:
Date: