LEASE BETWEEN 2929 SEVENTH STREET, L.L.C. (LANDLORD) AND DYNAVAX TECHNOLOGIES CORPORATION (TENANT) 2919 Seventh Street Berkeley, California

Exhibit 10.73

LEASE

BETWEEN

0000 XXXXXXX XXXXXX, L.L.C. (LANDLORD)

AND

DYNAVAX TECHNOLOGIES CORPORATION (TENANT)

0000 Xxxxxxx Xxxxxx

Xxxxxxxx, Xxxxxxxxxx

ARTICLE 1		BASIC LEASE PROVISIONS			1
ARTICLE 2		PREMISES, TERM, FAILURE TO GIVE POSSESSION, AND PARKING			8
ARTICLE 3		RENT			10
ARTICLE 4		RENT ADJUSTMENTS AND PAYMENTS			10
ARTICLE 5		[RESERVED]			13
ARTICLE 6		SERVICES			13
ARTICLE 7		POSSESSION, USE AND CONDITION OF PREMISES			14
ARTICLE 8		MAINTENANCE			17
ARTICLE 9		ALTERATIONS AND IMPROVEMENTS			18
ARTICLE 10		ASSIGNMENT AND SUBLETTING			20
ARTICLE 11		DEFAULT AND REMEDIES			23
ARTICLE 12		SURRENDER OF PREMISES			29
ARTICLE 13		HOLDING OVER			29
ARTICLE 14		DAMAGE BY FIRE OR OTHER CASUALTY			30
ARTICLE 15		EMINENT DOMAIN			32
ARTICLE 16		INSURANCE			33
ARTICLE 17		WAIVER OF CLAIMS AND INDEMNITY			35
ARTICLE 18		RULES AND REGULATIONS			37
ARTICLE 19		LANDLORD’S RESERVED RIGHTS			37
ARTICLE 20		ESTOPPEL CERTIFICATE			38
ARTICLE 21		[RESERVED]			38
ARTICLE 22		REAL ESTATE BROKERS			38
ARTICLE 23		MORTGAGEE PROTECTION			39
ARTICLE 24		NOTICES			40
ARTICLE 25		MISCELLANEOUS			41

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LEASE

ARTICLE 1

BASIC LEASE PROVISIONS

1.1 BASIC LEASE PROVISIONS

In the event of any conflict between these Basic Lease Provisions and any other Lease provision, such other Lease provision shall control.

(1) BUILDING ADDRESS:

0000 Xxxxxxx Xxxxxx

Xxxxxxxx, Xxxxxxxxxx 00000

(2) LANDLORD AND ADDRESS:

0000 Xxxxxxx Xxxxxx, L.L.C.

0000 Xxx Xxxxxx, Xxxxx 000

Xxx Xxxxxx, Xxxxxxxxxx 00000

Notices to Landlord shall be addressed:

0000 Xxxxxxx Xxxxxx, L.L.C.

c/o Wareham Property Group

0000 Xxx Xxxxxx, Xxxxx 000

Xxx Xxxxxx, Xxxxxxxxxx 00000

with a copy to:

Shartsis Xxxxxx LLP

Xxx Xxxxxxxx Xxxxx, Xxx. 0000

Xxx Xxxxxxxxx, Xxxxxxxxxx 00000

Attn.: Xxxxx X. Xxxxxx, Esq.

(3) TENANT AND CURRENT ADDRESS:

		(a)		Name:		Dynavax Technologies Corporation
		(b)		State of incorporation:		Delaware

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Notices to Tenant shall be addressed:

0000 Xxxxxxx Xxxxxx, Xxxxx 000

Xxxxxxxx, XX 00000

Attn: Chief Financial Officer

(4) DATE OF LEASE: as of        December 14, 2012

(5) LEASE TERM:          approximately five (5) years

(6) PROJECTED COMMENCEMENT DATE: June 1, 2013

(7)          EXPIRATION DATE: The day immediately preceding the fifth (5th) anniversary of the Commencement Date, if the Commencement Date occurs on the first day of a calendar month; or, if the Commencement Date shall be other than the first day of a calendar month, then the last day of the calendar month in which the fifth (5th) anniversary of the Commencement Date occurs.

(8) MONTHLY BASE RENT:

PERIOD FROM/TO		MONTHLY
Months 1 – 12			$35,428.53
Months 13 – 24			$36,491.39
Months 25 – 36			$37,586.13
Months 37 – 48			$38,713.71
Months 49 – 60			$39,875.12

(9) RENTABLE AREA OF THE PREMISES:    approximately 14,461 square feet

(10) SECURITY DEPOSIT:  None

(11) [RESERVED]

(12) TENANT’S USE OF PREMISES:  General office administration

(13)        PARKING: 28 parking spaces, of which a number reasonably determined by Landlord will be reserved for Tenant in the nearest parking lots located to the west and north of the Building that are owned by Landlord or its Affiliate, and the balance of which shall be located in parking lot(s) owned by Landlord or its Affiliate within 400 yards of the corner of Seventh Street and Xxxxxxx Street. Parking shall be free of charge.

(14) BROKERS:     NONE

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(15) BASE YEAR:  2013

1.2 ENUMERATION OF EXHIBITS AND RIDER

The Exhibits and Rider set forth below and attached to this Lease are incorporated in this Lease by this reference:

EXHIBIT A		Plan of Premises
EXHIBIT B		Workletter Agreement
EXHIBIT C		Rules and Regulations
RIDER 1		Commencement Date Agreement

1.3 DEFINITIONS

For purposes hereof, the following terms shall have the following meanings:

ADJUSTMENT YEAR:  The applicable calendar year or any portion thereof, during the Term, after the Base Year for which a Rent Adjustment computation is being made.

AFFILIATE:    Any corporation or other business entity that is currently owned or controlled by, owns or controls, or is under common ownership or control with Tenant or Landlord, as the case may be, and as specified hereunder.

BUILDING:  The office building located at the address specified in Section 1.1.

COMMENCEMENT DATE:  The date described in Section 2.2(a).

COMMON AREAS:  All areas of the Property made available by Landlord from time to time for the general common use or benefit of the tenants of the Property, and their employees and invitees, or the public, as such areas currently exist and as they may be changed from time to time. Tenant occupies the entire Building; accordingly, there are no common areas within the Building.

DECORATION:   Tenant Alterations which do not require a building permit and which do not involve any of the structural elements of the Building, or any of the Building’s systems, including its electrical, mechanical, plumbing, security, heating, ventilating, air-conditioning, communication, and fire and life safety systems.

DEFAULT RATE:    Two (2) percentage points above the rate then most recently announced by Bank of America, N.A., at its San Francisco main office as its base lending reference rate, from time to time announced, but in no event higher than the maximum rate permitted by Law.

ENVIRONMENTAL LAWS:      All Laws governing the use, storage, disposal or generation of any Hazardous Material, including, without limitation, the Comprehensive Environmental Response Compensation and Liability Act of 1980, as amended, and the Resource Conservation and Recovery Act of 1976, as amended.

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EXPIRATION DATE:   The date specified in Section 1.1 as the Expiration Date, unless changed by operation of Article Two.

FORCE MAJEURE:  Any accident, casualty, act of God, war or civil commotion, strike or labor troubles, or any cause whatsoever beyond the reasonable control of Landlord or Tenant, including water shortages, energy shortages or governmental preemption in connection with an act of God, a national emergency, or by reason of Law, or by reason of the conditions of supply and demand which have been or are affected by act of God, war or other emergency.

HAZARDOUS MATERIAL:  Such substances, material and wastes which are or become regulated under any Environmental Law; or which are classified as hazardous or toxic under any Environmental Law; and explosives and firearms, radioactive material, asbestos, polychlorinated biphenyls, and petroleum products. The restrictions on use of Hazardous Material are set forth in Section 7.1(c).

INDEMNITEES:      Collectively, Landlord, any Mortgagee or ground lessor of the Property, the property manager and the leasing manager for the Property and their respective partners, members, directors, officers and employees.

LAND:  The parcel(s) of real estate on which the Building is located.

LANDLORD WORK:  The construction or installation of improvements to the Premises to be furnished by Landlord, if any, as specifically described in the Workletter.

LAWS OR LAW:   All laws, ordinances, rules, regulations, other requirements, orders, rulings or decisions adopted or made by any governmental body, agency, department or judicial authority having jurisdiction over the Property, the Premises or Tenant’s activities at the Premises and any covenants, conditions or restrictions of record which affect the Property.

LEASE:  This instrument and all exhibits and riders attached hereto, as may be amended from time to time.

MONTHLY BASE RENT:  The monthly base rent specified in Section 1.1.

MORTGAGEE:   Any holder of a mortgage, deed of trust or other security instrument encumbering the Property.

NATIONAL HOLIDAYS:   New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day and other holidays recognized by the Landlord and the janitorial and other unions servicing the Building in accordance with their contracts.

OPERATING EXPENSES:   All costs, expenses and disbursements of every kind and nature which Landlord shall pay or become obligated to pay in connection with the ownership, management, operation, maintenance, replacement and repair of the Building and the Property (including, without limitation, property management fees, costs and expenses, and the amortized portion of any capital expenditure or improvement, together with interest thereon, and the costs of changing utility service providers). Operating Expenses shall not include, (i) Leasing commissions, attorneys’ fees, costs, disbursements, and other expenses incurred in connection

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with negotiations or disputes with tenants, or in connection with leasing, renovating, or improving space for tenants or other occupants or prospective tenants or other occupants of the Building, (ii) capital costs for the Property (except for amortized portion of capital for the purpose of reducing or controlling Operating Expenses or complying with applicable Laws), (iii) depreciation charges; (iv) all interest, loan fees, and other carrying costs related to any mortgage or deed of trust or related to any capital item, and all rental and other payable due under any ground or underlying lease, or any lease for any equipment ordinarily considered to be of a capital nature (except janitorial equipment which is not affixed to the Building and except for loans for capital improvements which Landlord is allowed to include in Operating Expenses as provided above); (v) ground rental payments; (vi) advertising and marketing expenses; (vii) costs of Landlord reimbursed by insurance proceeds; (viii) Landlord’s general corporate overhead; (ix) the cost of any service sold to any tenant (including Tenant) or other occupant for which Landlord is entitled to be reimbursed as an additional charge or rental over and above the basic rent and escalations payable under the lease with that tenant; (x) the cost or expense of any services or benefits provided generally to other tenants in the Building and not provided or available to Tenant; (xi) any compensation paid to clerks, attendants, or other persons in commercial concessions operated by Landlord; (xii) any costs, fines, or penalties incurred due to violations by Landlord of any governmental rule or authority, this Lease or any other lease in the Property, or due to Landlord’s negligence or willful misconduct; (xiii) management fees in excess of 4 1/2% of gross receipts for the Property; (xiv) costs for sculpture, paintings, or other objects of art in excess of $2,500.00 for any one piece (nor insurance thereon or extraordinary security in connection therewith); (xv) wages, salaries, or other compensation paid to any executive employees above the grade of building manager; (xvi) the cost of containing, removing, or otherwise remediating any contamination of the Property by any Hazardous Materials where such contamination existed prior to the Commencement Date or was caused by another tenant of the Property; (xvii) costs incurred due to Landlord’s violation of any terms or conditions of this Lease or any other lease relating to the Building or Property; (xviii) overhead profit increments paid to Landlord’s subsidiaries or affiliates for services (other than management services, which services are capped pursuant to item xiii above) on or to the Building or for supplies or other materials to the extent that the cost of the services, supplies, or materials exceeds the cost that would have been paid had the services, supplies, or materials been provided by unaffiliated parties on a competitive basis; and (xix) the cost of correcting any building code or other violations of which Landlord received written notification prior to the Commencement Date. If Landlord pays the deductible portion on any insurance claim applicable to a capital expenditure or improvement, that deductible portion shall be amortized over the life of the capital expenditure or improvement. If any Operating Expense, though paid in one year, relates to more than one calendar year, at the option of Landlord such expense may be proportionately allocated among such related calendar years.

PREMISES:  The entirety of the Building depicted on Exhibit A attached hereto.

PROPERTY:  The Property consists of the Building, the building located at 0000 Xxxxxxx Xxxxxx, the two (2) buildings located at 000 Xxxxxxx Xxxxxx, associated surface and garage parking as designated by Landlord from time to time, landscaping and improvements, together with the Land, any associated interests in real property, and the personal property, fixtures, machinery, equipment, systems and apparatus located in or used in conjunction with any of the foregoing.

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REAL PROPERTY:  The Property excluding any personal property.

RENT:    Collectively, Monthly Base Rent, Rent Adjustments and Rent Adjustment Deposits, and all other charges, payments, late fees or other amounts required to be paid by Tenant under this Lease.

RENT ADJUSTMENT:  Any amounts owed by Tenant for payment of Operating Expenses or Taxes. The Rent Adjustments shall be determined and paid as provided in Article Four.

RENT ADJUSTMENT DEPOSIT:   An amount equal to Landlord’s estimate of the Rent Adjustment attributable to each month of the applicable Adjustment Year. On or before the beginning of each Adjustment Year or with Landlord’s Statement (defined in Article 4), Landlord may estimate and notify Tenant in writing of its estimate of the amount of Operating Expenses and Taxes payable by Tenant for such Adjustment Year. Prior to the first determination by Landlord of the amount of Operating Expenses and Taxes for the first Adjustment Year, Landlord may estimate such amounts in the foregoing calculation. The last estimate by Landlord shall remain in effect as the applicable Rent Adjustment Deposit unless and until Landlord notifies Tenant in writing of a change, which notice may be given by Landlord from time to time during any Adjustment Year.

RENTABLE AREA OF THE PREMISES:   The amount of square footage set forth in Section 1.1 which shall not be changed except as a result of the change in the physical size of the Premises.

RENTABLE AREA OF THE BUILDING:   The amount of square footage set forth in Section 1.1, which shall not be changed except as a result of the change in the physical size of the Premises.

SECURITY DEPOSIT:  None.

SUBSTANTIALLY COMPLETE or SUBSTANTIAL COMPLETION:   The completion of the Landlord Work (subject to Tenant’s obligation to pay for the portion of the Landlord Work as set forth in the Work Letter), in good and workmanlike manner, in material compliance with all applicable laws and the plans mutually agreed upon by Landlord and Tenant, except for minor insubstantial details of construction, decoration or mechanical adjustments and other “punchlist” items that do not unreasonably interfere with Tenant’s use of the Premises.

TAXES:   All federal, state and local governmental taxes, assessments and charges of every kind or nature, whether general, special, ordinary or extraordinary, which Landlord shall pay or become obligated to pay because of or in connection with the ownership, leasing, management, control or operation of the Property or any of its components (including any personal property used in connection therewith), which may also include any rental or similar taxes levied in lieu of or in addition to general real and/or personal property taxes. For purposes hereof, Taxes for any year shall be Taxes which are assessed for any period of such year, whether or not such Taxes are billed and payable in a subsequent calendar year. There shall be included in Taxes for any year the amount of all fees, costs and expenses (including reasonable attorneys’ fees) paid by Landlord during such year in seeking or obtaining any refund or

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reduction of Taxes. Taxes for any year shall be reduced by the net amount of any tax refund received by Landlord attributable to such year. If a special assessment payable in installments is levied against any part of the Property, Taxes for any year shall include only the installment of such assessment and any interest payable or paid during such year. Taxes shall not include any federal or state inheritance, general income, gift or estate taxes, except that if a change occurs in the method of taxation resulting in whole or in part in the substitution of any such taxes, or any other assessment, for any Taxes as above defined, such substituted taxes or assessments shall be included in the Taxes. Notwithstanding anything herein to the contrary, Taxes shall include only 50% of any increases that result from a reassessment of value due to “new construction” on or a “change of ownership” of the Property (as such terms are defined in part 0.5 of division 1 of the California Revenue and Taxation Code or any amendments or successor statutes thereto). For the purposes of the Rent Adjustment, Taxes shall be calculated based upon the longest period available for payment.

TENANT ADDITIONS:  Collectively, Landlord Work and Tenant Alterations.

TENANT ALTERATIONS:   Any alterations, improvements, additions, installations or construction in or to the Premises or any Building systems serving the Premises (excluding Landlord Work).

TENANT DELAY:  Any event or occurrence that delays the completion of the Landlord Work which is caused by or is described as follows:

(1) special work, changes, alterations or additions requested or made by Tenant in the design or finish in any part of the Premises after approval of the plans and specifications (as described in the Workletter);

(2) Tenant’s delay in submitting plans, supplying information, approving plans, specifications or estimates, giving authorizations or otherwise;

(3) [intentionally omitted];

(4) the performance or completion by Tenant or any person engaged by Tenant of any work in or about the Premises; or

(5) failure to perform or comply with any obligation or condition binding upon Tenant pursuant to the Workletter, including the failure to approve and pay for such Landlord Work or other items if and to the extent the Workletter provides they are to be approved or paid by Tenant.

TENANT’S SHARE:   The percentage that represents the ratio of the Rentable Area of the Premises to the Rentable Area of the Building (i.e., 100%). Tenant shall have no obligation to pay Tenant’s Share (or any other portion) of Operating Expenses attributable solely to other buildings on the Property, and shall only be responsible for paying a percentage of the Operating Expenses fairly attributable to the Common Areas, such percentage to be represented by a fraction, the numerator of which is the square footage in the Premises, and the denominator of which is the square footage contained in all buildings on the Property.

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TERM:   The term of this Lease commencing on the Commencement Date and expiring on the Expiration Date.

TERMINATION DATE:     The Expiration Date or such earlier date as this Lease terminates or Tenant’s right to possession of the Premises terminates.

WORKLETTER:  The Agreement regarding the manner of completion of Landlord Work set forth on Exhibit B attached hereto.

ARTICLE 2

PREMISES, TERM, FAILURE TO GIVE POSSESSION, AND PARKING

2.1 LEASE OF PREMISES

Landlord hereby leases to Tenant and Tenant hereby leases from Landlord the Premises for the Term and upon the terms, covenants and conditions provided in this Lease. In the event Landlord delivers possession of the Premises to Tenant prior to the Commencement Date in response to Tenant’s request, Tenant shall be subject to all of the terms, covenants and conditions of this Lease (except with respect to the payment of Rent) as of the date of such possession.

2.2 TERM

(a) The Commencement Date shall be the date the Landlord Work is Substantially Complete.

(b) Within thirty (30) days following the occurrence of the Commencement Date, Landlord and Tenant shall enter into an agreement (the form of which is attached hereto as Rider 1) confirming the Commencement Date and the Expiration Date. If Tenant fails to enter into such agreement, then the Commencement Date and the Expiration Date shall be the dates designated by Landlord in such agreement. If the Expiration Date does not fall on the last day of a calendar month, Landlord may elect to adjust the Expiration Date to the last day of the calendar month in which Expiration Date occurs through the agreement referenced above, which shall set forth such adjusted date.

2.3 FAILURE TO GIVE POSSESSION

If Landlord shall be unable to give possession of the Premises on the Projected Commencement Date by reason of the following: (i) the Building has not been sufficiently completed to make the Premises ready for occupancy, (ii) the Landlord Work, if any, is not Substantially Complete, (iii) the holding over or retention of possession of any tenant, tenants or occupants, or (iv) for any other reason, then Landlord shall not be subject to any liability for the failure to give possession on said date. Under such circumstances, the Commencement Date shall be the date the Premises are made available to Tenant by Landlord with the Landlord Work Substantially Complete, and no such failure to give possession on the Projected Commencement Date shall affect the validity of this Lease or the obligations of the Tenant hereunder. The said

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Premises shall be deemed to be ready for Tenant’s occupancy in the event Landlord’s Work, if any, is Substantially Complete, or if the delay in the availability of the Premises for occupancy shall be due to any Tenant Delay and/or default on the part of Tenant and/or its subtenant or subtenants. In the event of any dispute as to whether the Landlord Work is Substantially Complete, the decision of Landlord’s architect shall be final and binding on the parties.

2.4 CONDITION OF PREMISES

Tenant shall notify Landlord in writing within thirty (30) days after the later of Substantial Completion of the Landlord Work or when Tenant takes possession of the Premises of any defects in the Premises claimed by Tenant or in the materials or workmanship furnished by Landlord in completing the Landlord Work. Except for defects stated in such notice, Tenant shall be conclusively deemed to have accepted the Premises “AS IS” in the condition existing on the date Tenant first takes possession, and to have waived all claims relating to the condition of the Premises. Landlord shall proceed diligently to correct the defects stated in such notice unless Landlord disputes the existence of any such defects. In the event of any dispute as to the existence of any such defects, the decision of Landlord’s architect shall be final and binding on the parties. No agreement of Landlord to alter, remodel, decorate, clean or improve the Premises or the Real Property and no representation regarding the condition of the Premises or the Real Property has been made by or on behalf of Landlord to Tenant, except as may be specifically stated in this Lease or in the Workletter. Notwithstanding anything in this Section 2.4 to the contrary, Landlord shall deliver the Premises to Tenant in “broom clean” condition with all Building systems, doors and windows in operational condition. Tenant shall notify Landlord in writing within thirty (30) days of any portion of the Premises not being in compliance with the foregoing sentence, and Landlord shall promptly repair same at Landlord’s sole cost and expense (i.e., not as part of Operating Expenses).

2.5 PARKING

During the Term, Tenant may use the number of spaces specified in Section 1.1. The locations and type of parking shall be designated by Landlord or Landlord’s parking operator from time to time. Tenant acknowledges and agrees that the parking spaces serving the Property may include tandem parking and a mixture of spaces for compact vehicles as well as full-size passenger automobiles, and that Tenant shall not use parking spaces for vehicles larger than the striped size of the parking spaces. All vehicles utilizing Tenant’s parking privileges shall prominently display identification stickers or other markers, and/or have passes or keycards for ingress and egress, as may be required and provided by Landlord or its parking operator from time to time. Tenant shall comply with any and all parking rules and regulations from time to time established by Landlord or Landlord’s parking operator, including a requirement that Tenant pay to Landlord or Landlord’s parking operator a charge for loss and replacement of passes, keycards, identification stickers or markers, and for any and all loss or other damage caused by persons or vehicles related to use of Tenant’s parking privileges. Tenant shall not allow any vehicles using Tenant’s parking privileges to be parked, loaded or unloaded except in accordance with this Section, including in the areas and in the manner designated by Landlord or its parking operator for such activities. If any vehicle is using the parking or loading areas contrary to any provision of this Section, Landlord or its parking operator shall have the right, in addition to all other rights and remedies of Landlord under this Lease, to remove or tow away the

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vehicle without prior notice to Tenant, and the cost thereof shall be paid to Landlord within ten (10) days after notice from Landlord to Tenant.

ARTICLE 3

RENT

Tenant agrees to pay to Landlord at the first office specified in Section 1.1, or to such other persons, or at such other places designated by Landlord, without any prior demand therefor in immediately available funds and without any deduction or offset whatsoever, Rent, including Monthly Base Rent and Rent Adjustments in accordance with Article Four, during the Term. Monthly Base Rent shall be paid monthly in advance on the first day of each month of the Term, except that the first installment of Monthly Base Rent shall be paid by Tenant to Landlord concurrently with execution of this Lease. Monthly Base Rent shall be prorated for partial months within the Term. Unpaid Rent shall bear interest at the Default Rate from the date due until paid. Tenant’s covenant to pay Rent shall be independent of every other covenant in this Lease.

ARTICLE 4

RENT ADJUSTMENTS AND PAYMENTS

4.1 RENT ADJUSTMENTS

Tenant shall pay to Landlord Rent Adjustments with respect to each Adjustment Year as follows:

(i) The Rent Adjustment Deposit representing Tenant’s Share of increases in Operating Expenses for the applicable Adjustment Year over the Operating Expenses for the Base Year, monthly during the Term with the payment of Monthly Base Rent;

(ii) The Rent Adjustment Deposit representing Tenant’s Share of increases in Taxes for the applicable Adjustment Year over the Taxes for the Base Year, monthly during the Term with the payment of Monthly Base Rent; and

(iii) Any Rent Adjustments due in excess of the Rent Adjustment Deposits in accordance with Section 4.2. Rent Adjustments due from Tenant to Landlord for any Adjustment Year shall be Tenant’s Share of Operating Expenses for such year in excess of the Base Year Operating Expenses and Tenant’s Share of Taxes for such year in excess of the Base Year Taxes. If Operating Expenses and/or Taxes in any Adjustment Year decrease below the amount of Operating Expenses and/or Taxes for the Base Year for any reason, the Rent Adjustment Deposit for Operating Expenses and/or Taxes, as the case may be, for that Adjustment Year shall be $0.

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(iv) For purposes of determining Rent Adjustments, if the Building is not fully occupied during all or any portion of the Base Year or any Adjustment Year during the Term, Landlord shall make appropriate adjustments to the variable components of Operating Expenses for the Base Year or such Adjustment Year, employing sound accounting and management principles consistently applied, to determine the amount of Operating Expenses that would have been paid or incurred by Landlord had the Building been ninety-five percent (95%) occupied, and the amount so determined shall be deemed to have been the amount of Operating Expenses for the Base Year or such Adjustment Year. In the event that the Property is not fully assessed for all or a portion of the Base Year or any Adjustment Year, then Taxes shall be adjusted to an amount which would have been payable in the Base Year or such Adjustment Year if the Property had been fully assessed.

4.2 STATEMENT OF LANDLORD

As soon as practicable after the expiration of the Base Year, and each Adjustment Year thereafter, Landlord will furnish to Tenant a statement (“Landlord’s Statement”) showing the following:

(i) The amount of actual Operating Expenses and Taxes for the Base Year and thereafter for the most recent Adjustment Year;

(ii) The amount of Rent Adjustments due Landlord for the most recent Adjustment Year, less credit for Rent Adjustment Deposits or other amounts paid, if any, toward Operating Expenses and Taxes for such Adjustment Year; and

(iii) Any change in the Rent Adjustment Deposit due monthly in the current Adjustment Year, including the amount or revised amount due for months preceding any such change pursuant to Landlord’s Statement.

Tenant shall pay to Landlord within ten (10) business days after receipt of each Landlord’s Statement any amounts for Rent Adjustments then due in accordance with such Landlord’s Statement. Any amounts due from Landlord to Tenant pursuant to this Section shall be credited to the Rent Adjustment Deposit next coming due, or refunded to Tenant if the Term has already expired provided Tenant is not in default hereunder and no further Rent is due. No interest or penalties shall accrue on any amounts that Landlord is obligated to credit or refund to Tenant by reason of this Section 4.2. Landlord’s failure to deliver Landlord’s Statement or to compute the amount of the Rent Adjustments shall not constitute a waiver by Landlord of its right to deliver such items nor constitute a waiver or release of Tenant’s obligations to pay such amounts. The Rent Adjustment Deposit shall be credited against Rent Adjustments due for the applicable Adjustment Year. During the last complete Adjustment Year or during any partial Adjustment Year in which the Lease terminates, Landlord may include in the Rent Adjustment Deposit its estimate of Rent Adjustments which may not be finally determined until after the

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termination or expiration of this Lease. Tenant’s obligation to pay Rent Adjustments survives the expiration or termination of the Lease.

4.3 BOOKS AND RECORDS

Landlord shall maintain books and records showing Operating Expenses and Taxes in accordance with industry standard accounting and management practices, consistently applied. Tenant or its representative (which representative shall be a certified public accountant licensed to do business in the state in which the Property is located and whose primary business is certified public accounting and who shall not be paid on a contingency basis) shall have the right, for a period of sixty (60) days following the date upon which Landlord’s Statement is delivered to Tenant, to examine the Landlord’s books and records with respect to the items in the foregoing statement of Operating Expenses and Taxes during normal business hours, upon written notice, delivered at least three (3) business days in advance. If Tenant does not object in writing to Landlord’s Statement within sixty (60) days of Tenant’s receipt thereof, specifying the nature of the item in dispute and the reasons therefor, then Landlord’s Statement shall be considered final and accepted by Tenant. If Tenant does dispute any Landlord’s Statement, Tenant shall deliver a copy of any such audit to Landlord at the time of notification of the dispute. If Tenant does not provide such notice of dispute and a copy of such audit to Landlord within such sixty (60) day period, it shall be deemed to have waived such right to dispute Landlord’s Statement. Any amount due to the Landlord as shown on Landlord’s Statement, whether or not disputed by Tenant as provided herein shall be paid by Tenant when due as provided above, without prejudice to any such written exception. In no event shall Tenant be permitted to examine Landlord’s records or to dispute any statement of Operating Expenses and Taxes unless Tenant has paid and continues to pay all Rent when due. Tenant shall be solely responsible for all costs, expenses and fees incurred for the audit. However, notwithstanding the foregoing, if Landlord and Tenant determine that Operating Expenses for the Building for the year in question were less than stated by more than 5%, Landlord, within 30 days after its receipt of paid invoices therefor from Tenant, shall reimburse Tenant for the reasonable amounts paid by Tenant to third parties in connection with such review by Tenant up to a maximum of $3,500.00. Upon resolution of any dispute with respect to Operating Expenses and Taxes, Tenant shall either pay Landlord any shortfall or Landlord shall credit Tenant with respect to any overages paid by Tenant. The records obtained by Tenant shall be treated as confidential and neither Tenant nor any of its representatives or agents shall disclose or discuss the information set forth in the audit to or with any other person or entity (“Confidentiality Requirement”). Tenant shall indemnify and hold Landlord harmless for any losses or damages arising out of the breach of the Confidentiality Requirement. In no event shall Tenant be permitted to examine Landlord’s records or to dispute any statement of Expenses unless Tenant has paid and continues to pay all Rent when due.

4.4 TENANT OR LEASE SPECIFIC TAXES

In addition to Monthly Base Rent, Rent Adjustments, Rent Adjustment Deposits and other charges to be paid by Tenant, Tenant shall pay to Landlord, upon demand, any and all taxes payable by Landlord (other than federal or state inheritance, general income, franchise gift or estate taxes) whether or not now customary or within the contemplation of the parties hereto: (a) upon, allocable to, or measured by the Rent payable hereunder, including any gross receipts tax

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or excise tax levied by any governmental or taxing body with respect to the receipt of such rent; or (b) upon or with respect to the possession, leasing, operation, management, maintenance, alteration, repair, use or occupancy by Tenant of the Premises or any portion thereof; or (c) upon the measured value of Tenant’s personal property located in the Premises or in any storeroom or any other place in the Premises or the Property, or the areas used in connection with the operation of the Property, it being the intention of Landlord and Tenant that, to the extent possible, such personal property taxes shall be billed to and paid directly by Tenant; (d) resulting from Landlord Work or Tenant Alterations to the Premises, whether title thereto is in Landlord or Tenant; or (e) upon this transaction. Taxes paid by Tenant pursuant to this Section 4.4 shall not be included in any computation of Taxes payable pursuant to Sections 4.1 and 4.2.

ARTICLE 5

[RESERVED]

ARTICLE 6

SERVICES

6.1 UTILITIES; SERVICES

During the Term, all charges for electricity, gas, telephone, water, sewer, trash and janitorial services and any other service and utility servicing the Premises shall be paid by Tenant to the applicable utility or service provider. Gas, electricity and water services shall be metered, and Tenant shall establish an account with the applicable utility provider with respect to each such utility. If Tenant fails to pay any utility or service charges when due, Landlord may pay the amount due, which amount plus interest at the Default Rate, shall be due and payable by Tenant as additional Rent hereunder.

6.2 SIGNAGE

Initial Building standard signage will be installed by Landlord at the Building. Any change in such initial signage shall be only with Landlord’s prior written consent, shall conform to Building standard signage and shall be at Tenant’s sole cost and expense. Tenant shall not place on the exterior of the Premises or the door, window or roof, within any display window space or within five (5) feet behind the entry to the Premises, any sign, decoration, lettering, advertising matter or descriptive material without Landlord’s prior written approval. Tenant shall submit to Landlord reasonably detailed drawings of its proposed signs for review and approval by Landlord prior to utilizing same. All signs, awnings, canopies, decorations, lettering, advertising matter or other items used by Tenant shall conform to the standards of design, motif, and decor, from time to time, established by Landlord for the Building and shall be insured and maintained at all times by Tenant in good condition, operating order and repair. Flashing signs and credit card or other signs, advertisements and hand lettered signs visible from outside the Building or the Common Areas are prohibited. Landlord shall have the right, without notice to Tenant and without any liability for damage to the Premises reasonably caused thereby, to remove any items displayed or affixed in or to the Premises which Landlord determines to be in violation of the provisions of this Section. If any damage is done to Tenant’s signs, Tenant

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shall commence to repair same within five (5) days after such damage occurs, and upon Tenant’s failure to commence the repair work within said five (5) day period and to diligently prosecute the same to completion, Landlord may, after notice to Tenant, repair such damage and Tenant shall pay Landlord, upon demand, Landlord’s costs and expenses in connection therewith.

ARTICLE 7

POSSESSION, USE AND CONDITION OF PREMISES

7.1 POSSESSION AND USE OF PREMISES

(a) Tenant shall be entitled to possession of the Premises when the Landlord Work is Substantially Complete. Tenant shall occupy and use the Premises only for the uses specified in Section 1.1 to conduct Tenant’s business. Tenant shall not occupy or use the Premises (or permit the use or occupancy of the Premises) for any purpose or in any manner which: (1) is unlawful or in violation of any Law or Environmental Law; (2) may be dangerous to persons or property or which may increase the cost of, or invalidate, any policy of insurance carried on the Building or covering its operations; (3) is contrary to or prohibited by the terms and conditions of this Lease or the rules of the Building set forth in Article Eighteen; or (4) would tend to create or continue a nuisance.

(b) Tenant shall comply with all Environmental Laws pertaining to Tenant’s occupancy and use of the Premises and concerning the proper storage, handling and disposal of any Hazardous Material introduced to the Premises, the Building or the Property by Tenant or other occupants of the Premises, or their employees, servants, agents, contractors, customers or invitees during the Term. Landlord shall comply with all Environmental Laws applicable to the Property other than those to be complied with by Tenant pursuant to the preceding sentence. Tenant shall not generate, store, handle or dispose of any Hazardous Material in, on, or about the Property without the prior written consent of Landlord, which may be withheld in Landlord’s sole discretion, except that such consent shall not be required to the extent of Hazardous Material packaged and contained in office products for consumer use in general business offices or laboratories in quantities for ordinary day-to-day use provided such use does not give rise to, or pose a risk of, exposure to or release of Hazardous Material. Landlord consents to the use by Tenant of necessary quantities of Hazardous Material in connection with the operations of its laboratory facilities provided that: (i) materials are stored in original containers, (ii) Tenant provides Landlord with a list of all such Hazardous Materials and the quantities at the Premises from time to time within ten (10) days after request by Landlord, (iii) such use is in compliance with applicable Environmental Law and (iv) such use does not give rise to, or pose a risk of, exposure to or release of Hazardous Materials. Upon request, and from time to time, Tenant shall provide Landlord with a list of all such Hazardous Materials and the quantity of such Hazardous Materials used at the Premises. In the event that Tenant is notified of any investigation or violation of any Environmental Law arising from Tenant’s activities at the Premises, Tenant shall immediately deliver

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to Landlord a copy of such notice. In such event or in the event Landlord reasonably believes that a violation of Environmental Law exists, Landlord may conduct such tests and studies relating to compliance by Tenant with Environmental Laws or the alleged presence of Hazardous Materials upon the Premises as Landlord deems desirable, all of which shall be completed at Tenant’s expense. Landlord’s inspection and testing rights are for Landlord’s own protection only, and Landlord has not, and shall not be deemed to have assumed any responsibility to Tenant or any other party for compliance with Environmental Laws, as a result of the exercise, or non-exercise of such rights. Tenant hereby indemnifies, and agrees to defend, protect and hold harmless, the Indemnitees from any and all loss, claim, demand, action, expense, liability and cost (including attorneys’ fees and expenses) arising out of or in any way related to the presence of any Hazardous Material introduced to the Premises during the Term by any party other than Landlord or Landlord’s Indemnitees, agents or contractors. In case of any action or proceeding brought against the Indemnitees by reason of any such claim, upon notice from Landlord, Tenant covenants to defend such action or proceeding by counsel chosen by Landlord, in Landlord’s sole discretion. Landlord reserves the right to settle, compromise or dispose of any and all actions, claims and demands related to the foregoing indemnity. If any Hazardous Material is released, discharged or disposed of on or about the Property and such release, discharge or disposal is not caused by Tenant or other occupants of the Premises, or their employees, servants, agents, contractors, customers or invitees, such release, discharge or disposal shall be deemed casualty damage under Article Fourteen to the extent that the Premises are affected thereby; in such case, Landlord and Tenant shall have the obligations and rights respecting such casualty damage provided under such Article.

(c) Landlord and Tenant acknowledge that the Americans With Disabilities Act of 1990 (42 U.S.C. §12101 et seq.) and regulations and guidelines promulgated thereunder, as all of the same may be amended and supplemented from time to time (collectively referred to herein as the “ADA”) establish requirements for business operations, accessibility and barrier removal, and that such requirements may or may not apply to the Premises, the Building and the Property depending on, among other things: (1) whether Tenant’s business is deemed a “public accommodation” or “commercial facility”, (2) whether such requirements are “readily achievable”, and (3) whether a given alteration affects a “primary function area” or triggers “path of travel” requirements. The parties hereby agree that: (a) Landlord shall be responsible for ADA Title III compliance in the Common Areas, except as provided below, (b) Tenant shall be responsible for ADA Title III compliance in the Premises, including any leasehold improvements or other work to be performed in the Premises under or in connection with this Lease, (c) Landlord may perform, or require that Tenant perform, and Tenant shall be responsible for the cost of, ADA Title III “path of travel” requirements triggered by Tenant Alterations in the Premises, and (d) Landlord may perform, or require Tenant to perform, and Tenant shall be responsible for the cost of, ADA Title III compliance in the Common Areas necessitated by the Building being deemed to be a “public accommodation” instead of a “commercial facility” as a

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result of Tenant’s use of the Premises. Landlord represents and warrants that the Premises shall be in compliance with ADA Title III as of the Commencement Date, other than those ADA requirements that may be triggered by Tenant’s use of the Premises for other than general office use. Tenant shall be solely responsible for requirements under Title I of the ADA relating to Tenant’s employees.

7.2 LANDLORD ACCESS TO PREMISES; APPROVALS

(a) Tenant shall permit Landlord to erect, use and maintain pipes, ducts, wiring and conduits in and through the Premises, so long as Tenant’s use, layout or design of the Premises is not materially affected or altered. Landlord or Landlord’s agents shall have the right to enter upon the Premises in the event of an emergency, or to inspect the Premises, to perform services required hereunder, to conduct safety and other testing in the Premises and to make such repairs, alterations, improvements or additions to the Premises or the Building or other parts of the Property as Landlord may deem necessary or desirable (including all alterations, improvements and additions in connection with a change in service provider or providers). Any entry or work by Landlord may be during normal business hours and Landlord may use reasonable efforts to ensure that any entry or work shall not materially interfere with Tenant’s occupancy of the Premises.

(b) If Tenant shall not be personally present to permit an entry into the Premises when for any reason an entry therein shall be necessary or permissible, Landlord (or Landlord’s agents), after attempting to notify Tenant (unless Landlord believes an emergency situation exists), may enter the Premises without rendering Landlord or its agents liable therefor, and without relieving Tenant of any obligations under this Lease.

(c) Landlord may enter the Premises for the purpose of conducting such inspections, tests and studies as Landlord may deem desirable or necessary to confirm Tenant’s compliance with all Laws and Environmental Laws or for other purposes necessary in Landlord’s reasonable judgment to ensure the sound condition of the Property and the systems serving the Property. Landlord’s rights under this Section 7.2(c) are for Landlord’s own protection only, and Landlord has not, and shall not be deemed to have assumed, any responsibility to Tenant or any other party as a result of the exercise or non-exercise of such rights, for compliance with Laws or Environmental Laws or for the accuracy or sufficiency of any item or the quality or suitability of any item for its intended use.

(d) Landlord may do any of the foregoing, or undertake any of the inspection or work described in the preceding paragraphs without such action constituting an actual or constructive eviction of Tenant, in whole or in part, or giving rise to an abatement of Rent by reason of loss or interruption of business of the Tenant, or otherwise.

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(e) The review, approval or consent of Landlord with respect to any item required or permitted under this Lease is for Landlord’s own protection only, and Landlord has not, and shall not be deemed to have assumed, any responsibility to Tenant or any other party, as a result of the exercise or non-exercise of such rights, for compliance with Laws or Environmental Laws or for the accuracy or sufficiency of any item or the quality or suitability of any item for its intended use.

7.3 QUIET ENJOYMENT

Landlord covenants, in lieu of any implied covenant of quiet possession or quiet enjoyment, that so long as Tenant is in compliance with the covenants and conditions set forth in this Lease, Tenant shall have the right to quiet enjoyment of the Premises without hindrance or interference from Landlord or those claiming through Landlord, and subject to the covenants and conditions set forth in the Lease and to the rights of any Mortgagee or ground lessor.

ARTICLE 8

MAINTENANCE

8.1 LANDLORD’S MAINTENANCE

Subject to the provisions of Articles Four (as to reimbursement of Operating Expenses) and Fourteen, Landlord shall maintain in good order, condition and repair the foundations, roofs, exterior walls, and the structural elements of the Building, plus the electrical, plumbing, heating, ventilating, air-conditioning, mechanical and the fire and life safety systems of the Building (including the Premises), except that: (a) Landlord shall not be responsible for the maintenance or repair of any floor or wall coverings in the Premises; (b) the cost of performing any of said maintenance or repairs to the Premises shall be paid directly by Tenant as additional Rent and not included in Operating Expenses, and (c) the cost of performing any of said maintenance or repairs to the Building caused by the negligence of Tenant, its employees, agents, servants, licensees, subtenants, contractors or invitees, shall be paid directly by Tenant as additional Rent and not included in Operating Expenses, subject to the waivers set forth in Section 16.4. Landlord shall not be liable to Tenant for any expense, injury, loss or damage resulting from work done in or upon, or in connection with the use of, any adjacent or nearby building, land, street or alley. Landlord shall maintain the Building in compliance with all Environmental Laws to the extent Landlord has received written notice of violation of such Laws.

8.2 TENANT’S MAINTENANCE

Subject to the provisions of Section 8.1 above and Article Fourteen and Fifteen, Tenant, at its expense, shall keep and maintain the Premises and all Tenant Additions in good order, condition and repair and in accordance with all Laws and Environmental Laws (except to the extent Landlord is responsible for compliance with Laws and Environmental Laws in the Premises under the terms of this Lease). Tenant shall provide regular janitorial services to the Premises, at Tenant’s sole cost and expense. Tenant shall not permit waste and shall promptly and adequately repair all damages to the Premises and replace or repair all damaged or broken glass in the interior of the Premises, fixtures or appurtenances. Any repairs or maintenance shall

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be completed with materials of similar quality to the original materials, all such work to be completed under the supervision of Landlord. Any such repairs or maintenance shall be performed only by contractors or mechanics approved by Landlord, which approval shall not be unreasonably withheld, and whose work will not cause or threaten to cause disharmony or interference with Landlord or other tenants in the Building and their respective agents and contractors performing work in or about the Building. If Tenant fails to perform any of its obligations set forth in this Section 8.2, Landlord may, in its sole discretion and upon 24 hours prior notice to Tenant (except without notice in the case of emergencies), perform the same, and Tenant shall pay to Landlord any costs or expenses incurred by Landlord upon demand.

ARTICLE 9

ALTERATIONS AND IMPROVEMENTS

9.1 TENANT ALTERATIONS

(a) The following provisions shall apply to the completion of any Tenant Alterations:

(i) Tenant shall not, except as provided herein, without the prior written consent of Landlord, which consent shall not be unreasonably withheld, make or cause to be made any Tenant Alterations in or to the Premises or any Property systems serving the Premises. Prior to making any Tenant Alterations, Tenant shall give Landlord ten (10) days prior written notice (or such earlier notice as would be necessary pursuant to applicable Law) to permit Landlord sufficient time to post appropriate notices of non-responsibility. Subject to all other requirements of this Article Nine, Tenant may undertake Decoration work without Landlord’s prior written consent. Tenant shall furnish Landlord with the names and addresses of all contractors and subcontractors and copies of all contracts. All Tenant Alterations shall be completed at such time and in such manner as Landlord may from time to time designate, and only by contractors or mechanics approved by Landlord, which approval shall not be unreasonably withheld, provided, however, that Landlord may, in its sole discretion, specify the engineers and contractors to perform all work relating to the Building’s systems (including the mechanical, heating, plumbing, security, ventilating, air-conditioning, electrical, communication and the fire and life safety systems in the Building). The contractors, mechanics and engineers who may be used are further limited to those whose work will not cause or threaten to cause disharmony or interference with Landlord or other tenants in the Building and their respective agents and contractors performing work in or about the Building. Landlord may further condition its consent upon Tenant furnishing to Landlord and Landlord approving prior to the commencement of any work or delivery of materials to the Premises related to the Tenant Alterations such of the following as specified by Landlord: architectural plans and specifications, opinions from Landlord’s engineers stating that the Tenant Alterations will not in any

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way adversely affect the Building’s systems, necessary permits and licenses, certificates of insurance, and such other documents in such form reasonably requested by Landlord. Landlord may, in the exercise of reasonable judgment, request that Tenant provide Landlord with appropriate evidence of Tenant’s ability to complete and pay for the completion of the Tenant Alterations such as a performance bond or letter of credit. Upon completion of the Tenant Alterations, Tenant shall deliver to Landlord an as-built mylar and digitized (if available) set of plans and specifications for the Tenant Alterations.

(ii) Tenant shall pay the cost of all Tenant Alterations and the cost of decorating the Premises and any work to the Property occasioned thereby. Upon completion of Tenant Alterations, Tenant shall furnish Landlord with contractors’ affidavits and full and final waivers of lien and receipted bills covering all labor and materials expended and used in connection therewith and such other documentation reasonably requested by Landlord or Mortgagee.

(iii) Tenant agrees to complete all Tenant Alterations (i) in accordance with all Laws, Environmental Laws, all requirements of applicable insurance companies and in accordance with Landlord’s standard construction rules and regulations, and (ii) in a good and workmanlike manner with the use of good grades of materials. Tenant shall notify Landlord immediately if Tenant receives any notice of violation of any Law in connection with completion of any Tenant Alterations and shall immediately take such steps as are necessary to remedy such violation. In no event shall such supervision or right to supervise by Landlord nor shall any approvals given by Landlord under this Lease constitute any warranty by Landlord to Tenant of the adequacy of the design, workmanship or quality of such work or materials for Tenant’s intended use or of compliance with the requirements of Section 9.1 (a)(3)(i) and (ii) above or impose any liability upon Landlord in connection with the performance of such work.

(b) All Tenant Additions whether installed by Landlord or Tenant, shall without compensation or credit to Tenant, become part of the Premises and the property of Landlord at the time of their installation and shall remain in the Premises, unless pursuant to Article Twelve, Tenant may remove them or is required to remove them at Landlord’s request.

9.2 LIENS

Tenant shall not permit any lien or claim for lien of any mechanic, laborer or supplier or any other lien to be filed against the Building, the Land, the Premises, or any other part of the Property arising out of work performed, or alleged to have been performed by, or at the direction of, or on behalf of Tenant. If any such lien or claim for lien is filed, Tenant shall within ten (10) days of receiving notice of such lien or claim (a) have such lien or claim for lien released of record or (b) deliver to Landlord a bond in form, content, amount, and issued by surety,

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satisfactory to Landlord, indemnifying, protecting, defending and holding harmless the Indemnitees against all costs and liabilities resulting from such lien or claim for lien and the foreclosure or attempted foreclosure thereof. If Tenant fails to take any of the above actions, Landlord, in addition to its rights and remedies under Article Eleven, without investigating the validity of such lien or claim for lien, may pay or discharge the same and Tenant shall, as payment of additional Rent hereunder, reimburse Landlord upon demand for the amount so paid by Landlord, including Landlord’s expenses and attorneys’ fees.

ARTICLE 10

ASSIGNMENT AND SUBLETTING

10.1 ASSIGNMENT AND SUBLETTING

(a) Without the prior written consent of Landlord, which may be withheld in Landlord’s sole discretion, Tenant may not sublease, assign, mortgage, pledge, hypothecate or otherwise transfer or permit the transfer of this Lease or the encumbering of Tenant’s interest therein in whole or in part, by operation of Law or otherwise or permit the use or occupancy of the Premises, or any part thereof, by anyone other than Tenant, provided, however, if Landlord chooses not to recapture the space proposed to be subleased or assigned as provided in Section 10.2, Landlord shall not unreasonably withhold its consent to a subletting or assignment under this Section 10.1. Tenant agrees that the provisions governing sublease and assignment set forth in this Article Ten shall be deemed to be reasonable. If Tenant desires to enter into any sublease of the Premises or assignment of this Lease, Tenant shall deliver written notice thereof to Landlord (“Tenant’s Notice”), together with the identity of the proposed subtenant or assignee and the proposed principal terms thereof and financial and other information sufficient for Landlord to make an informed judgment with respect to such proposed subtenant or assignee at least fifteen (15) days prior to the commencement date of the term of the proposed sublease or assignment. If Tenant proposes to sublease less than all of the Rentable Area of the Premises, the space proposed to be sublet and the space retained by Tenant must each be a marketable unit as reasonably determined by Landlord and otherwise in compliance with all Laws. Landlord shall notify Tenant in writing of its approval or disapproval of the proposed sublease or assignment or its decision to exercise its rights under Section 10.2 within thirty (30) days after receipt of Tenant’s Notice (and all required information). Tenant shall submit for Landlord’s approval (which approval shall not be unreasonably withheld) any advertising which Tenant or its agents intend to use with respect to the space proposed to be sublet.

(b) With respect to Landlord’s consent to an assignment or sublease, Landlord may take into consideration any factors that Landlord may deem relevant, and the reasons for which Landlord’s denial shall be deemed to be reasonable shall include, without limitation, the following:

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(1) the business reputation or creditworthiness of any proposed subtenant or assignee is not acceptable to Landlord; or

(2) in Landlord’s reasonable judgment the proposed assignee or sublessee would diminish the value or reputation of the Building or Landlord; or

(3) any proposed assignee’s or sublessee’s use of the Premises would be different from the Use of the Premises set forth in Section 1.1 or would violate Section 7.1 of the Lease or would violate the provisions of any other leases of tenants in the Property; or

(4) the proposed sublessee or assignee is a bona fide prospective tenant of Landlord in the Property as demonstrated by a written proposal dated within ninety (90) days prior to the date of Tenant’s request; or

(5) the proposed sublessee or assignee would materially increase the estimated pedestrian and vehicular traffic to and from the Premises and the Building.

(c) Any sublease or assignment shall be expressly subject to the terms and conditions of this Lease. Any subtenant or assignee shall execute such documents as Landlord may reasonably require to evidence such subtenant’s sublease of all or a portion of the Premises or assignee’s assumption of the obligations and liabilities of Tenant under this Lease. Tenant shall deliver to Landlord a copy of all agreements executed by Tenant and the proposed subtenant and assignee with respect to the Premises. Landlord’s approval of a sublease, assignment, hypothecation, transfer or third party use or occupancy shall not constitute a waiver of Tenant’s obligation to obtain Landlord’s consent to further assignments or subleases, hypothecations, transfers or third party use or occupancy.

(d) For purposes of this Article Ten, an assignment shall be deemed to include a change in the majority control of Tenant, resulting from any transfer, sale or assignment of shares of stock of Tenant occurring by operation of Law or otherwise if Tenant is a corporation whose shares of stock are not traded publicly. If Tenant is a partnership, any change in the partners of Tenant shall be deemed to be an assignment.

(e) Notwithstanding anything in this Article Ten to the contrary, occupancy of all or part of the Premises by (i) any related entity, parent company, subsidiary, or Affiliate of Tenant, or (ii) any entity which owns or is owned by an Affiliate of Tenant, or (iii) any company in which Tenant has a controlling interest, or (iv) any successor corporation to Tenant, whether by merger, consolidation, or otherwise, or any person or entity who purchases all or substantially all of Tenant’s business or assets, shall not be deemed an assignment or subletting requiring Landlord’s prior written consent, provided that such related entity,

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parent company, subsidiary, Affiliate, controlled company, or successor corporation was not formed as a subterfuge to avoid the obligations of this Article Ten. In such transactions, the provisions of subsections (a) and (b), above, shall not apply, and Tenant may assign the Lease at any time, or sublease all or part of the Premise at any time, without receipt of Landlord’s consent, to any such entity so long as such transaction was not entered into as a subterfuge to avoid the obligations and restrictions of this Lease and Landlord receives written notice of such assignment or sublease within 30 days of such transaction. In addition, the provisions of Sections 10.2 and 10.3 below shall not apply to such transactions, and any options or rights that Tenant may have under this Lease shall transfer to such entity.

10.2 RECAPTURE

Excluding any assignment or sublease contemplated in Section 10.1(e), Landlord shall have the option to exclude from the Premises covered by this Lease (“recapture”) the space proposed to be sublet or subject to the assignment, effective as of the proposed commencement date of such sublease or assignment. If Landlord elects to recapture, Tenant shall surrender possession of the space proposed to be subleased or subject to the assignment to Landlord on the effective date of recapture of such space from the Premises, such date being the Termination Date for such space. Effective as of the date of recapture of any portion of the Premises pursuant to this section, the Monthly Base Rent, Rentable Area of the Premises and Tenant’s Share shall be adjusted accordingly.

10.3 EXCESS RENT

Except in connection with any assignment permitted under Section 10.1(e) above, Tenant shall pay Landlord on the first day of each month during the term of the sublease or assignment, fifty percent (50%) of the amount by which the sum of all rent and other consideration (direct or indirect) due from the subtenant or assignee for such month exceeds: (i) that portion of the Monthly Base Rent and Rent Adjustments due under this Lease for said month which is allocable to the space sublet or assigned (the “Sublease/Assignment Rent”); and (ii) the following costs and expenses for the subletting or assignment of such space: (1) brokerage commissions and attorneys’ fees and expenses, (2) the actual costs paid in making any improvements or substitutions in the Premises required by any sublease or assignment; and (3) “free rent” periods, costs of any inducements or concessions given to subtenant or assignee, moving costs, and other amounts in respect of such subtenant’s or assignee’s other leases or occupancy arrangements.

10.4 TENANT LIABILITY

In the event of any sublease or assignment, whether or not with Landlord’s consent, Tenant shall not be released or discharged from any liability, whether past, present or future, under this Lease, including any liability arising from the exercise of any renewal or expansion option, to the extent such exercise is expressly permitted by Landlord. Tenant’s liability shall remain primary, and in the event of default by any subtenant, assignee or successor of Tenant in performance or observance of any of the covenants or conditions of this Lease, Landlord may proceed directly against Tenant without the necessity of exhausting remedies against said

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subtenant, assignee or successor. After any assignment, Landlord may consent to subsequent assignments or subletting of this Lease, or amendments or modifications of this Lease with assignees of Tenant, without notifying Tenant, or any successor of Tenant, and without obtaining its or their consent thereto, and to the extent Tenant has delivered its written consent to such action, such action shall not relieve Tenant or any successor of Tenant of liability under this Lease. If Landlord grants consent to such sublease or assignment, Tenant shall pay all reasonable attorneys’ fees and expenses incurred by Landlord with respect to such assignment or sublease. In addition, if Tenant has any options to extend the Term or to add other space to the Premises, such options shall not be available to any subtenant or assignee, directly or indirectly without Landlord’s express written consent, which may be withheld in Landlord’s sole discretion.

10.5 ASSUMPTION AND ATTORNMENT

If Tenant shall assign this Lease as permitted herein, the assignee shall expressly assume all of the obligations of Tenant hereunder in a written instrument satisfactory to Landlord and furnished to Landlord not later than fifteen (15) days prior to the effective date of the assignment. If Tenant shall sublease the Premises as permitted herein, Tenant shall, at Landlord’s option, within fifteen (15) days following any request by Landlord, obtain and furnish to Landlord the written agreement of such subtenant to the effect that, upon termination of the Lease, the subtenant will attorn to Landlord and will pay all subrent directly to Landlord; provided, however, Landlord agrees to mitigate any damages to which Landlord would otherwise be entitled under California Civil Code Section 1951.2 by the amount of subrent Landlord receives.

ARTICLE 11

DEFAULT AND REMEDIES

11.1 EVENTS OF DEFAULT

The occurrence or existence of any one or more of the following shall constitute a “Default” by Tenant under this Lease:

(a) Tenant fails to pay any installment or other payment of Rent including Rent Adjustment Deposits or Rent Adjustments within five (5) days after written notice;

(b) Tenant fails to observe or perform any of the other covenants, conditions or provisions of this Lease or the Workletter and fails to cure such default within thirty (30) days after written notice thereof to Tenant (or such additional time as may be required, up to a maximum of ninety (90) days, subject to extension due to Force Majeure events), unless the default involves a hazardous condition, which shall be cured forthwith or unless the failure to perform is a Default for which this Lease specifies there is no cure or grace period;

(c) the interest of Tenant in this Lease is levied upon under execution or other legal process;

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(d) a petition is filed by or against Tenant to declare Tenant bankrupt or seeking a plan of reorganization or arrangement under any Chapter of the Bankruptcy Act, or any amendment, replacement or substitution therefor, or to delay payment of, reduce or modify Tenant’s debts, which in the case of an involuntary action is not discharged within thirty (30) days;

(e) Tenant is declared insolvent by Law or any assignment of Tenant’s property is made for the benefit of creditors;

(f) a receiver is appointed for Tenant or Tenant’s property, which appointment is not discharged within thirty (30) days;

(g) any action taken by or against Tenant to reorganize or modify Tenant’s capital structure in a materially adverse way which in the case of an involuntary action is not discharged within thirty (30) days;

(h) upon the dissolution of Tenant;

(i) upon the third occurrence within any calendar year during the Term that Tenant fails to pay Rent when due and incurred late fees or has breached a particular covenant of this Lease (whether or not such failure or breach is thereafter cured within any stated cure or grace period or statutory period); provided, this provision shall not apply unless Landlord has provided Tenant with written notice of its applicability following the second such occurrence; or

(j) Tenant’s default (beyond any applicable notice and cure period) under that certain lease dated as of January 7, 2004 between Landlord and Tenant, as such lease has been amended (and as may be further amended), pursuant to which Tenant leases from Landlord certain space located in the building adjacent to the Building, such building commonly known as 0000 Xxxxxxx Xxxxxx, Xxxxxxxx.

11.2 LANDLORD’S REMEDIES

(a) A Default shall constitute a breach of the Lease for which Landlord shall have the rights and remedies set forth in this Section 11.2 and all other rights and remedies set forth in this Lease or now or hereafter allowed by Law, whether legal or equitable, and all rights and remedies of Landlord shall be cumulative and none shall exclude any other right or remedy.

(b) With respect to a Default, at any time Landlord may terminate Tenant’s right to possession by written notice to Tenant stating such election. Any written notice required pursuant to Section 11.1 shall constitute notice of unlawful detainer pursuant to California Code of Civil Procedure Section 1161 if, at Landlord’s sole discretion, it states Landlord’s election that Tenant’s right to possession is terminated after expiration of any period required by Law or any longer period required by Section 11.1. Upon the expiration of the period stated in Landlord’s written notice of termination (and unless such notice provides an option to cure within such period and Tenant cures the Default within such period), Tenant’s

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right to possession shall terminate and this Lease shall terminate, and Tenant shall remain liable as hereinafter provided. Upon such termination in writing of Tenant’s right to possession, Landlord shall have the right, subject to applicable Law, to re-enter the Premises and dispossess Tenant and the legal representatives of Tenant and all other occupants of the Premises by unlawful detainer or other summary proceedings, or otherwise as permitted by Law, regain possession of the Premises and remove their property (including their trade fixtures, personal property and those Tenant Additions which Tenant is required or permitted to remove under Article Twelve), but Landlord shall not be obligated to effect such removal, and such property may, at Landlord’s option, be stored elsewhere, sold or otherwise dealt with as permitted by Law, at the risk of, expense of and for the account of Tenant, and the proceeds of any sale shall be applied pursuant to Law. Landlord shall in no event be responsible for the value, preservation or safekeeping of any such property. Tenant hereby waives all claims for damages that may be caused by Landlord’s removing or storing Tenant’s personal property pursuant to this Section or Section 12.1, and Tenant hereby indemnifies, and agrees to defend, protect and hold harmless, the Indemnitees from any and all loss, claims, demands, actions, expenses, liability and cost (including attorneys’ fees and expenses) arising out of or in any way related to such removal or storage. Upon such written termination of Tenant’s right to possession and this Lease, Landlord shall have the right to recover damages for Tenant’s Default as provided herein or by Law, including the following damages provided by California Civil Code Section 1951.2:

(i) the worth at the time of award of the unpaid Rent which had been earned at the time of termination;

(ii) the worth at the time of award of the amount by which the unpaid Rent which would have been earned after termination until the time of award exceeds the amount of such Rent loss that Tenant proves could reasonably have been avoided;

(iii) the worth at the time of award of the amount by which the unpaid Rent for the balance of the term of this Lease after the time of award exceeds the amount of such Rent loss that Tenant proves could be reasonably avoided; and

(iv) any other amount necessary to compensate Landlord for all the detriment proximately caused by Tenant’s failure to perform its obligations under this Lease or which in the ordinary course of things would be likely to result therefrom, including, without limitation, Landlord’s unamortized costs of tenant improvements, leasing commissions and legal fees incurred in connection with entering into this Lease. The word “rent” as used in this Section 11.2 shall have the same meaning as the defined term Rent in this Lease. The “worth at the time of award” of the amount referred to in clauses (1) and (2) above is computed by allowing interest at the Default Rate. The worth at the time of award of the amount referred to in clause

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(3) above is computed by discounting such amount at the discount rate of the Federal Reserve Bank of San Francisco at the time of award plus one percent (1%). For the purpose of determining unpaid Rent under clause (3) above, the monthly Rent reserved in this Lease shall be deemed to be the sum of the Monthly Base Rent, monthly storage space rent, if any, and the amounts last payable by Tenant as Rent Adjustments for the calendar year in which Landlord terminated this Lease as provided hereinabove.

(c) Even if Tenant is in Default and/or has abandoned the Premises, this Lease shall continue in effect for so long as Landlord does not terminate Tenant’s right to possession by written notice as provided in Section 11.2(b) above, and Landlord may enforce all its rights and remedies under this Lease, including the right to recover Rent as it becomes due under this Lease. In such event, Landlord shall have all of the rights and remedies of a landlord under California Civil Code Section 1951.4 (Landlord may continue Lease in effect after Tenant’s Default and abandonment and recover Rent as it becomes due, if Tenant has the right to sublet or assign, subject only to reasonable limitations), or any successor statute. During such time as Tenant is in Default, if Landlord has not terminated this Lease by written notice and if Tenant requests Landlord’s consent to an assignment of this Lease or a sublease of the Premises, subject to Landlord’s option to recapture pursuant to Section 10.2, Landlord shall not unreasonably withhold its consent to such assignment or sublease. Tenant acknowledges and agrees that the provisions of Article Ten shall be deemed to constitute reasonable limitations of Tenant’s right to assign or sublet. Tenant acknowledges and agrees that in the absence of written notice pursuant to Section 11.2(b) above terminating Tenant’s right to possession, no other act of Landlord shall constitute a termination of Tenant’s right to possession or an acceptance of Tenant’s surrender of the Premises, including acts of maintenance or preservation or efforts to relet the Premises or the appointment of a receiver upon initiative of Landlord to protect Landlord’s interest under this Lease or the withholding of consent to a subletting or assignment, or terminating a subletting or assignment, if in accordance with other provisions of this Lease.

(d) In the event that Landlord seeks an injunction with respect to a breach or threatened breach by Tenant of any of the covenants, conditions or provisions of this Lease, Tenant agrees to pay the premium for any bond required in connection with such injunction.

(e) Tenant hereby waives any and all rights to relief from forfeiture, redemption or reinstatement granted by Law (including California Civil Code of Procedure Sections 1174 and 1179) in the event of Tenant being evicted or dispossessed for any cause or in the event of Landlord obtaining possession of the Premises by reason of Tenant’s Default or otherwise;

(f) Notwithstanding any other provision of this Lease, a notice to Tenant given under this Article and Article Twenty-four of this Lease or given pursuant to California Code of Civil Procedure Section 1161, and any notice served by mail shall be

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deemed served, and the requisite waiting period deemed to begin under said Code of Civil Procedure Section upon mailing, without any additional waiting requirement under Code of Civil Procedure Section 1011 et seq. or by other Law. For purposes of Code of Civil Procedure Section 1162, Tenant’s “place of residence”, “usual place of business”, “the property” and “the place where the property is situated” shall mean and be the Premises, whether or not Tenant has vacated same at the time of service.

(g) The voluntary or other surrender or termination of this Lease, or a mutual termination or cancellation thereof, shall not work a merger and shall terminate all or any existing assignments, subleases, subtenancies or occupancies permitted by Tenant, except if and as otherwise specified in writing by Landlord.

(h) No delay or omission in the exercise of any right or remedy of Landlord upon any default by Tenant, and no exercise by Landlord of its rights pursuant to Section 25.15 to perform any duty which Tenant fails timely to perform, shall impair any right or remedy or be construed as a waiver. No provision of this Lease shall be deemed waived by Landlord unless such waiver is in writing signed by Landlord. The waiver by Landlord of any breach of any provision of this Lease shall not be deemed a waiver of any subsequent breach of the same or any other provision of this Lease.

11.3 ATTORNEY’S FEES

In the event any party brings any suit or other proceeding with respect to the subject matter or enforcement of this Lease, the prevailing party (as determined by the court, agency or other authority before which such suit or proceeding is commenced) shall, in addition to such other relief as may be awarded, be entitled to recover attorneys’ fees, expenses and costs of investigation as actually incurred, including court costs, expert witness fees, costs and expenses of investigation, and all attorneys’ fees, costs and expenses in any such suit or proceeding (including in any action or participation in or in connection with any case or proceeding under the Bankruptcy Xxxx, 00 Xxxxxx Xxxxxx Code Sections 101 et seq., or any successor statutes, in establishing or enforcing the right to indemnification, in appellate proceedings, or in connection with the enforcement or collection of any judgment obtained in any such suit or proceeding).

11.4 BANKRUPTCY

The following provisions shall apply in the event of the bankruptcy or insolvency of Tenant:

(a) In connection with any proceeding under Chapter 7 of the Bankruptcy Code where the trustee of Tenant elects to assume this Lease for the purposes of assigning it, such election or assignment, may only be made upon compliance with the provisions of (b) and (c) below, which conditions Landlord and Tenant acknowledge to be commercially reasonable. In the event the trustee elects to reject this Lease then Landlord shall immediately be entitled to possession of the Premises without further obligation to Tenant or the trustee.

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(b) Any election to assume this Lease under Chapter 11 or 13 of the Bankruptcy Code by Tenant as debtor-in-possession or by Tenant’s trustee (the “Electing Party”) must provide for:

(i) The Electing Party to cure or provide to Landlord adequate assurance that it will cure all monetary defaults under this Lease within fifteen (15) days from the date of assumption and it will cure all nonmonetary defaults under this Lease within thirty (30) days from the date of assumption. Landlord and Tenant acknowledge such condition to be commercially reasonable.

(ii) If the Electing Party has assumed this Lease or elects to assign Tenant’s interest under this Lease to any other person, such interest may be assigned only if the intended assignee has provided adequate assurance of future performance (as herein defined), of all of the obligations imposed on Tenant under this Lease.

(iii) For the purposes hereof, “adequate assurance of future performance” means that Landlord has ascertained that each of the following conditions has been satisfied:

(1) The assignee has submitted a current financial statement, certified by its chief financial officer, which shows a net worth and working capital in amounts sufficient to assure the future performance by the assignee of Tenant’s obligations under this Lease; and

(2) Landlord has obtained consents or waivers from any third parties that may be required under a lease, mortgage, financing arrangement, or other agreement by which Landlord is bound, to enable Landlord to permit such assignment.

(c) Landlord’s acceptance of rent or any other payment from any trustee, receiver, assignee, person, or other entity will not be deemed to have waived, or waive, the requirement of Landlord’s consent, Landlord’s right to terminate this Lease for any transfer of Tenant’s interest under this Lease without such consent, or Landlord’s claim for any amount of Rent due from Tenant.

11.5 LANDLORD’S DEFAULT

Landlord shall be in default hereunder in the event Landlord has not begun and pursued with reasonable diligence the cure of any failure of Landlord to meet its obligations hereunder within thirty (30) days after the receipt by Landlord of written notice from Tenant of the alleged failure to perform. In no event shall Tenant have the right to terminate or rescind this Lease as a result of Landlord’s default as to any covenant or agreement contained in this Lease. Tenant hereby waives such remedies of termination and rescission and hereby agrees that Tenant’s remedies for default hereunder and for breach of any promise or inducement shall be limited to a suit for damages and/or injunction. In addition, Tenant hereby covenants that, prior to the

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exercise of any such remedies, it will give the Mortgagee notice and a reasonable time to cure any default by Landlord.

ARTICLE 12

SURRENDER OF PREMISES

12.1 IN GENERAL

Upon the Termination Date, Tenant shall surrender and vacate the Premises immediately and deliver possession thereof to Landlord in a clean, good and tenantable condition, excepting ordinary wear and tear, and damage caused by Landlord. Tenant shall deliver to Landlord all keys to the Premises. Tenant shall remove from the Premises all movable personal property of Tenant and Tenant’s trade fixtures and cabling installed by or on behalf of Tenant. Tenant shall be entitled to remove such Tenant Alterations, which at the time of their installation Landlord and Tenant agreed may be removed by Tenant. Tenant shall also remove such other Tenant Alterations as required by Landlord, including any Tenant Alterations containing Hazardous Materials. Tenant shall pay any costs Landlord incurs to: (a) repair damage resulting from removal of any of Tenant’s property, furnishings or Tenant Alterations; (b) close floor, ceiling and roof openings caused by such removal; and (c) restore the Premises to a tenantable condition as reasonably determined by Landlord. If any of the Tenant Alterations which were installed by Tenant involved the lowering of ceilings, raising of floors or the installation of specialized wall or floor coverings or lights, then Tenant shall also be liable for the cost to return such surfaces to their condition prior to the commencement of this Lease. In the event possession of the Premises is not delivered to Landlord when required hereunder, or if Tenant shall fail to remove those items described above, Landlord may (but shall not be obligated to), at Tenant’s expense, remove any of such property and store, sell or otherwise deal with such property as provided in Section 11.2(b), including the waiver and indemnity obligations provided in that Section.

12.2 LANDLORD’S RIGHTS

All property which may be removed from the Premises by Landlord shall be conclusively presumed to have been abandoned by Tenant and Landlord may deal with such property as provided in Section 11.2(b), including the waiver and indemnity obligations provided in that Section. Tenant shall also reimburse Landlord for all costs and expenses incurred by Landlord in removing any of Tenant Alterations and in restoring the Premises to the condition required by this Lease at the Termination Date.

ARTICLE 13

HOLDING OVER

In the event that Tenant holds over in possession of the Premises after the Termination Date, Tenant shall pay Landlord 125% of the monthly Rent payable for the month immediately preceding the holding over (including increases for Rent Adjustments which Landlord may reasonably estimate. Tenant shall also pay all damages sustained by Landlord by reason of such retention of possession. The provisions of this Article shall not constitute a waiver by Landlord

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of any re-entry rights of Landlord, and Tenant’s continued occupancy of the Premises shall be as a tenancy in sufferance.

ARTICLE 14

DAMAGE BY FIRE OR OTHER CASUALTY

14.1 SUBSTANTIAL UNTENANTABILITY

(a) If any fire or other casualty (whether insured or uninsured) renders all or a substantial portion of the Premises or the Building untenantable for the Permitted Use, Landlord shall, with reasonable promptness after the occurrence of such damage, cause a licensed architect or contractor to estimate the length of time that will be required to substantially complete the repair and restoration and shall by notice advise Tenant of such estimate (“Landlord’s Notice”). If Landlord’s Notice indicates that the amount of time required to substantially complete such repair and restoration will exceed one hundred eighty (180) days from the date such damage occurred, then Landlord, or Tenant if all or a substantial portion of the Premises or the Building is rendered untenantable, shall have the right to terminate this Lease as of the date of such damage upon giving written notice to the other at any time within twenty (20) days after delivery of Landlord’s Notice, provided that if Landlord so chooses, Landlord’s Notice may also constitute such notice of termination.

(b) Unless this Lease is terminated as provided in the preceding subparagraph, Landlord shall proceed with reasonable promptness to repair and restore the Premises to its condition as existed prior to such casualty, subject to reasonable delays for insurance adjustments and Force Majeure delays, and also subject to zoning Laws and building codes then in effect. Landlord shall have no liability to Tenant, and Tenant shall not be entitled to terminate this Lease if such repairs and restoration are not in fact completed within the time period estimated by Landlord so long as Landlord shall proceed with reasonable diligence to complete such repairs and restoration. Notwithstanding the foregoing to the contrary, if the repair and restoration is not completed within two hundred seventy (270) days from the date such damage occurred, then Tenant shall have the right to terminate this Lease as of the two hundred seventy- first (271^st) day after the date such damage occurred by providing twenty (20) days prior written notice to Landlord.

(c) Tenant acknowledges that Landlord shall be entitled to the full proceeds of any insurance coverage, whether carried by Landlord or Tenant, for damages to the Premises, except for those proceeds of Tenant’s insurance of its own personal property and equipment which would be removable by Tenant at the Termination Date. All such insurance proceeds shall be payable to Landlord whether or not the Premises are to be repaired and restored, provided, however, if this Lease is not terminated and the parties proceed to repair and restore Tenant Additions at Tenant’s cost, to the extent Landlord received proceeds of Tenant’s insurance

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covering Tenant Additions, such proceeds shall be applied to reimburse Tenant for its cost of repairing and restoring Tenant Additions.

(d) Notwithstanding anything to the contrary herein set forth: (i) Landlord shall have no duty pursuant to this Section to repair or restore any portion of any Tenant Additions or to expend for any repair or restoration of the Premises or Building amounts in excess of insurance proceeds paid to Landlord and available for repair or restoration; and (ii) Tenant shall not have the right to terminate this Lease pursuant to this Section if any damage or destruction was caused by the act or neglect of Tenant, its agent or employees. Whether or not the Lease is terminated pursuant to this Article Fourteen, in no event shall Tenant be entitled to any compensation or damages for loss of the use of the whole or any part of the Premises or for any inconvenience or annoyance occasioned by any such damage, destruction, rebuilding or restoration of the Premises or the Building or access thereto.

(e) Any repair or restoration of the Premises performed by Tenant shall be in accordance with the provisions of Article Nine hereof.

14.2 INSUBSTANTIAL UNTENANTABILITY

If the Premises or the Building is damaged by a casualty but neither is rendered substantially untenantable for the Permitted Use and Landlord’s Notice indicates that the time to substantially complete the repair or restoration will not exceed one hundred eighty (180) days from the date such damage occurred, then Landlord shall proceed to repair and restore the Premises or the Building other than Tenant Additions, with reasonable promptness; provided, however, if such damage is to the Premises and occurs during the last twelve (12) months of the Term and the estimated time to complete repairs exceeds thirty-three and one-third percent (33 ¹/₃%) of the then remaining Term, or occurs during the last six (6) months of the Term (regardless of the estimated repair time), then either Tenant or Landlord shall have the right to terminate this Lease as of the date of such casualty by giving written notice thereof to the other within twenty (20) days after the date of such casualty. Notwithstanding the aforesaid, Landlord’s obligation to repair shall be limited in accordance with the provisions of Section 14.1 above.

14.3 RENT ABATEMENT

Except for the negligence or willful act of Tenant or its agents, employees, contractors or invitees, if all or any part of the Premises are rendered untenantable by fire or other casualty and this Lease is not terminated, Monthly Base Rent and Rent Adjustments shall xxxxx for that part of the Premises which is untenantable on a per diem basis from the date of the casualty until Landlord has Substantially Completed the repair and restoration work in the Premises which it is required to perform, provided, that as a result of such casualty, Tenant does not occupy the portion of the Premises which is untenantable during such period.

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14.4 WAIVER OF STATUTORY REMEDIES

The provisions of this Lease, including this Article Fourteen, constitute an express agreement between Landlord and Tenant with respect to any and all damage to, or destruction of, the Premises or the Property or any part of either, and any Law, including Sections 1932(2), 1933(4), 1941 and 1942 of the California Civil Code, with respect to any rights or obligations concerning damage or destruction shall have no application to this Lease or to any damage to or destruction of all or any part of the Premises or the Property or any part of either, and are hereby waived.

ARTICLE 15

EMINENT DOMAIN

15.1 TAKING OF WHOLE OR SUBSTANTIAL PART

In the event the whole or any substantial part of the Building or of the Premises is taken or condemned by any competent authority for any public use or purpose (including a deed given in lieu of condemnation) and is thereby rendered untenantable, this Lease shall terminate as of the date title vests in such authority, and Monthly Base Rent and Rent Adjustments shall be apportioned as of the Termination Date. Notwithstanding anything to the contrary herein set forth, in the event the taking is temporary (for less than the remaining Term of the Lease), Landlord may elect either (i) to terminate this Lease or (ii) permit Tenant to receive the entire award attributable to the Premises in which case Tenant shall continue to pay Rent and this Lease shall not terminate.

15.2 TAKING OF PART

In the event a part of the Building or the Premises is taken or condemned by any competent authority (or a deed is delivered in lieu of condemnation) and this Lease is not terminated, the Lease shall be amended to reduce or increase, as the case may be, the Monthly Base Rent and Tenant’s Share to reflect the Rentable Area of the Premises or Building, as the case may be, remaining after any such taking or condemnation. Landlord, upon receipt and to the extent of the award in condemnation (or proceeds of sale) shall make necessary repairs and restorations to the Premises (exclusive of Tenant Additions) and to the Building to the extent necessary to constitute the portion of the Building not so taken or condemned as a complete architectural and economically efficient unit. Notwithstanding the foregoing, if as a result of any taking, or a governmental order that the grade of any street or alley adjacent to the Building is to be changed and such taking or change of grade makes it necessary or desirable to substantially remodel or restore the Building or prevents the economical operation of the Building, Landlord shall have the right to terminate this Lease upon ninety (90) days prior written notice to Tenant.

15.3 COMPENSATION

Landlord shall be entitled to receive the entire award (or sale proceeds) from any such taking, condemnation or sale without any payment to Tenant, and Tenant hereby assigns to Landlord Tenant’s interest, if any, in such award; provided, however, Tenant shall have the right separately to pursue against the condemning authority a separate award in respect of the loss, if

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any, to Tenant Additions paid for by Tenant without any credit or allowance from Landlord so long as there is no diminution of Landlord’s award as a result.

ARTICLE 16

INSURANCE

16.1 TENANT’S INSURANCE

Tenant, at Tenant’s expense, agrees to maintain in force, with a company or companies acceptable to Landlord, during the Term: (a) Commercial General Liability Insurance on a primary basis and without any right of contribution from any insurance carried by Landlord covering the Premises on a claims-made basis against all claims for personal injury, bodily injury, death and property damage, including broad form contractual liability coverage, and such insurance shall be for such limits that are reasonably required by Landlord from time to time but not less than a combined single limit of One Million and No/100 Dollars ($1,000,000.00), plus an umbrella policy of not less than Four Million and No/100 Dollars ($4,000,000.00), have a retroactive date that is the same as the Commencement Date and be written with an insurance company having an A.M. Best Rating of “A-VII” or greater; (b) Workers’ Compensation and Employers’ Liability Insurance to the extent required by and in accordance with the Laws of the State of California; (c) “Special Perils” property insurance in an amount adequate to cover the full replacement cost of all Tenant Additions, equipment, installations, fixtures and contents of the Premises in the event of loss; (d) in the event a motor vehicle is to be used by Tenant in connection with its business operation from the Premises, Comprehensive Automobile Liability Insurance coverage with limits of not less than One Million and No/100 Dollars ($1,000,000.00) combined single limit coverage against bodily injury liability and property damage liability arising out of the use by or on behalf of Tenant, its agents and employees in connection with this Lease, of any owned, non-owned or hired motor vehicles; and (e) such other insurance or coverages as Landlord reasonably requires provided such other insurance or coverages are consistent with the requirements of landlords of buildings similar to the Building in the San Francisco Bay Area.

16.2 FORM OF POLICIES

The Commercial General Liability Insurance and umbrella policies referred to in 16.1 shall satisfy the following requirements. Each policy shall (i) name Landlord and the Indemnitees as additional insureds (except Workers’ Compensation and Employers’ Liability Insurance), (ii) be issued by one or more responsible insurance companies licensed to do business in the State of California reasonably satisfactory to Landlord, (iii) where applicable, provide for deductible amounts satisfactory to Landlord and not permit co-insurance, (iv) shall provide that such insurance may not be canceled without thirty (30) days’ prior written notice to the Landlord, and (v) each policy of “Special Perils” property insurance shall provide that the policy shall not be invalidated should the insured waive in writing prior to a loss, any or all rights of recovery against any other party for losses covered by such policies. Tenant shall deliver to Landlord, certificates of insurance and at Landlord’s request, copies of all policies and renewals thereof to be maintained by Tenant hereunder, not less than ten (10) days prior to the Commencement Date and not less than ten (10) days prior to the expiration date of each policy.

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16.3 LANDLORD’S INSURANCE

Landlord agrees to purchase and keep in full force and effect during the Term hereof, including any extensions or renewals thereof, insurance under policies issued by insurers of recognized responsibility, qualified to do business in the State of California on the Building in amounts not less than the greater of eighty (80%) percent of the then full replacement cost (without depreciation) of the Building (above foundations and excluding Tenant Additions) or an amount sufficient to prevent Landlord from becoming a co-insurer under the terms of the applicable policies, against fire and such other risks as may be included in standard forms of all risk coverage insurance reasonably available from time to time. Landlord agrees to maintain in force during the Term, Commercial General Liability Insurance covering the Building on an occurrence basis against all claims for personal injury, bodily injury, death, and property damage. Such insurance shall be for a combined single limit of not less than Three Million and No/100 Dollars ($3,000,000.00). Neither Landlord’s obligation to carry such insurance nor the carrying of such insurance shall be deemed to be an indemnity by Landlord with respect to any claim, liability, loss, cost or expense due, in whole or in part, to Tenant’s negligent acts or omissions or willful misconduct. Without obligation to do so, Landlord may, in its sole discretion from time to time, carry insurance in amounts greater and/or for coverage additional to the coverage and amounts set forth above.

16.4 WAIVER OF SUBROGATION

(a) Landlord agrees that, if obtainable at no, or minimal, additional cost, and so long as the same is permitted under the laws of the State of California, it will include in its “Special Perils” policies appropriate clauses pursuant to which the insurance companies (i) waive all right of subrogation against Tenant with respect to losses payable under such policies and/or (ii) agree that such policies shall not be invalidated should the insured waive in writing prior to a loss any or all right of recovery against any party for losses covered by such policies.

(b) Tenant agrees to include, if obtainable at no, or minimal, additional cost, and so long as the same is permitted under the laws of the State of California, in its “Special Perils” insurance policy or policies on Tenant Additions, whether or not removable, and on Tenant’s furniture, furnishings, fixtures and other property removable by Tenant under the provisions of this Lease appropriate clauses pursuant to which the insurance company or companies (i) waive the right of subrogation against Landlord and/or any tenant of space in the Building with respect to losses payable under such policy or policies and/or (ii) agree that such policy or policies shall not be invalidated should the insured waive in writing prior to a loss any or all right of recovery against any party for losses covered by such policy or policies. If Landlord shall be named as an additional insured in accordance with the foregoing, Landlord agrees to endorse promptly to the order of Tenant, without recourse, any check, draft, or order for the payment of money representing the proceeds of any such policy or representing any other payment growing out of or connected with said policies, and Landlord does hereby irrevocably waive any and all rights in and to such proceeds and payments.

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(c) Provided that Landlord’s right of full recovery under its policy or policies aforesaid is not adversely affected or prejudiced thereby, Landlord hereby waives any and all right of recovery which it might otherwise have against Tenant, its servants, agents and employees, for loss or damage occurring to the Real Property and the fixtures, appurtenances and equipment therein, to the extent the same is covered by Landlord’s insurance, notwithstanding that such loss or damage may result from the negligence or fault of Tenant, its servants, agents or employees. Provided that Tenant’s right of full recovery under its aforesaid policy or policies is not adversely affected or prejudiced thereby, Tenant hereby waives any and all right of recovery which it might otherwise have against Landlord, its servants, and employees and against every other tenant of the Real Property who shall have executed a similar waiver as set forth in this Section 16.4 (c) for loss or damage to Tenant Additions, whether or not removable, and to Tenant’s furniture, furnishings, fixtures and other property removable by Tenant under the provisions hereof to the extent the same is coverable by Tenant’s insurance required under this Lease, notwithstanding that such loss or damage may result from the negligence or fault of Landlord, its servants, agents or employees, or such other tenant and the servants, agents or employees thereof.

(d) Landlord and Tenant hereby agree to advise the other promptly if the clauses to be included in their respective insurance policies pursuant to subparagraphs (a) and (b) above cannot be obtained on the terms hereinbefore provided and thereafter to furnish the other with a certificate of insurance or copy of such policies showing the naming of the other as an additional insured, as aforesaid. Landlord and Tenant hereby also agree to notify the other promptly of any cancellation or change of the terms of any such policy that would affect such clauses or naming.

16.5 NOTICE OF CASUALTY

Tenant shall give Landlord notice in case of a fire or accident in the Premises promptly after Tenant is aware of such event.

ARTICLE 17

WAIVER OF CLAIMS AND INDEMNITY

17.1 WAIVER OF CLAIMS

To the extent permitted by Law, Tenant releases the Indemnitees from, and waives all claims for, damage to person or property sustained by the Tenant or any occupant of the Premises or the Property resulting directly or indirectly from any existing or future condition, defect, matter or thing in and about the Premises or the Property or any part of either or any equipment or appurtenance therein, or resulting from any accident in or about the Premises or the Property, or resulting directly or indirectly from any act or neglect of any tenant or occupant of the Property or of any other person, including Landlord’s agents and servants, except to the extent caused by the gross negligence or willful and wrongful act of any of the Indemnitees. To the extent permitted by Law, Tenant hereby waives any consequential damages, compensation or

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claims for inconvenience or loss of business, rents, or profits as a result of such injury or damage, whether or not caused by the gross negligence or willful and wrongful act of any of the Indemnitees. If any such damage, whether to the Premises or the Property or any part of either, or whether to Landlord or to other tenants in the Property, results from any act or neglect of Tenant, its employees, servants, agents, contractors, invitees or customers, Tenant shall be liable therefor and Landlord may, at Landlord’s option, repair such damage and Tenant shall, upon demand by Landlord, as payment of additional Rent hereunder, reimburse Landlord within ten (10) days of demand for the total cost of such repairs, in excess of amounts, if any, paid to Landlord under insurance covering such damages.

17.2 INDEMNITY BY TENANT

To the extent permitted by Law, Tenant hereby indemnifies, and agrees to protect, defend and hold the Indemnitees harmless, against any and all actions, claims, demands, liability, costs and expenses, including attorneys’ fees and expenses for the defense thereof, arising from Tenant’s occupancy of the Premises performed by Tenant, from the undertaking of any Tenant Alterations or repairs to the Premises, from the conduct of Tenant’s business on the Premises, or from any breach or default on the part of Tenant in the performance of any covenant or agreement on the part of Tenant to be performed pursuant to the terms of this Lease, or from any willful act or negligence of Tenant, its agents, contractors, servants, employees, customers or invitees, in or about the Premises or the Property or any part of either. In case of any action or proceeding brought against the Indemnitees by reason of any such claim, upon notice from Landlord, Tenant covenants to defend such action or proceeding by counsel chosen by Tenant and reasonably acceptable to Landlord. Landlord reserves the right to settle, compromise or dispose of any and all actions, claims and demands related to the foregoing indemnity. The foregoing indemnity shall not operate to relieve Indemnitees of liability to the extent such liability is caused by the willful and wrongful act of Indemnitees. Further, the foregoing indemnity is subject to and shall not diminish any waivers in effect in accordance with Section 16.4 by Landlord or its insurers to the extent of amounts, if any, paid to Landlord under its “Special Perils” property insurance.

17.3 INDEMNITY BY LANDLORD

To the extent permitted by Law, Landlord hereby indemnifies, and agrees to protect, defend and hold Tenant harmless from and against any and all liability, loss, suits, claims, actions, costs and expense, including without limitation, any attorney’s fees, arising from any contamination of the Premises or the Property (including the underlying land and groundwater) by any Hazardous Materials, where such contamination was not caused by Tenant. The provision of this Section 17.3 shall survive the expiration or earlier termination of the Term. Nothing in this Section 17.3 shall be deemed to modify Tenant’s obligations under Section 4.1 of the Lease.

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ARTICLE 18

RULES AND REGULATIONS

18.1 RULES

Tenant agrees for itself and for its subtenants, employees, agents, and invitees to comply with the rules and regulations listed on Exhibit C attached hereto and with all reasonable modifications and additions thereto which Landlord may make from time to time.

18.2 ENFORCEMENT

Nothing in this Lease shall be construed to impose upon the Landlord any duty or obligation to enforce the rules and regulations as set forth on Exhibit C or as hereafter adopted, or the terms, covenants or conditions of any other lease as against any other tenant, and the Landlord shall not be liable to the Tenant for violation of the same by any other tenant, its servants, employees, agents, visitors or licensees. Landlord shall use reasonable efforts to enforce the rules and regulations of the Property in a uniform and non-discriminatory manner.

ARTICLE 19

LANDLORD’S RESERVED RIGHTS

Landlord shall have the following rights exercisable without notice to Tenant and without liability to Tenant for damage or injury to persons, property or business and without being deemed an eviction or disturbance of Tenant’s use or possession of the Premises or giving rise to any claim for offset or abatement of Rent: (1) to change the Building’s name or street address upon thirty (30) days’ prior written notice to Tenant; (2) to install, affix and maintain all signs on the exterior and/or interior of the Building; (3) to designate and/or approve prior to installation, all types of signs, window shades, blinds, drapes, awnings or other similar items, and all internal lighting that may be visible from the exterior of the Premises; (4) upon reasonable notice to Tenant, to display the Premises to prospective purchasers and lenders at reasonable hours at any time during the Term and to prospective tenants at reasonable hours during the last twelve (12) months of the Term; (5) to grant to any party the exclusive right to conduct any business or render any service in or to the Building, provided such exclusive right shall not operate to prohibit Tenant from using the Premises for the purpose permitted hereunder; (6) to change the arrangement and/or location of entrances or passageways, doors and doorways, corridors, elevators, stairs, washrooms or public portions of the Building, and to close entrances, doors, corridors, elevators or other facilities, provided that such action shall not materially and adversely interfere with Tenant’s access to the Premises or the Building; (7) to have access for Landlord and other tenants of the Building to any mail chutes and boxes located in or on the Premises as required by any applicable rules of the United States Post Office; and (8) to close the Building after Standard Operating Hours, except that Tenant and its employees and invitees shall be entitled to admission at all times, under such regulations as Landlord prescribes for security purposes. Notwithstanding anything in this Article 19 to the contrary, clauses (5) through (7) above, inclusive, shall only be applicable at any time that the Premises consist of less than the entire Building.

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ARTICLE 20

ESTOPPEL CERTIFICATE

20.1 IN GENERAL

Within ten (10) days after request therefor by Landlord, Tenant, Mortgagee or any prospective mortgagee or owner, Tenant or Landlord agrees as directed in such request to execute an Estoppel Certificate in recordable form, binding upon Tenant or Landlord, certifying (i) that this Lease is unmodified and in full force and effect (or if there have been modifications, a description of such modifications and that this Lease as modified is in full force and effect); (ii) the dates to which Rent has been paid; (iii) that Tenant is in the possession of the Premises if that is the case; (iv) that to the knowledge of the party completing the Estoppel Certificate, Landlord or Tenant (as applicable) is not in default under this Lease, or, if a default has occurred, the nature thereof in detail; (v) (if Tenant is completing Estoppel Certificate) that Tenant, to its knowledge, has no offsets or defenses to the performance of its obligations under this Lease (or if Tenant believes there are any offsets or defenses, a full and complete explanation thereof); (vi) that the Premises have been completed in accordance with the terms and provisions hereof or the Workletter, that Tenant has accepted the Premises and the condition thereof and of all improvements thereto and has no claims against Landlord or any other party with respect thereto; (vii) (if Tenant is completing Estoppel Certificate) that if an assignment of rents or leases has been served upon the Tenant by a Mortgagee, Tenant will acknowledge receipt thereof and agree to be bound by the reasonable provisions thereof; (viii) (if Tenant is completing Estoppel Certificate) that Tenant will give to the Mortgagee copies of all notices required or permitted to be given by Tenant to Landlord; and (ix) to any other information reasonably requested. Landlord or Tenant shall pay all reasonable attorneys’ fees and expenses incurred by the requesting party with respect to executing the Estoppel Certificate.

20.2 ENFORCEMENT

In the event that Tenant fails to deliver an Estoppel Certificate, then such failure shall be a Default for which there shall be no cure or grace period. In addition to any other remedy available to Landlord, Landlord may impose a charge equal to $500.00 for each day that Tenant fails to deliver an Estoppel Certificate

ARTICLE 21

[RESERVED]

ARTICLE 22

REAL ESTATE BROKERS

Tenant represents that Tenant has not dealt with any real estate broker, sales person, or finder in connection with this Lease, and no such person initiated or participated in the negotiation of this Lease, or showed the Premises to Tenant. Tenant hereby agrees to indemnify, protect, defend and hold Landlord and the Indemnitees, harmless from and against any and all

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liabilities and claims for commissions and fees arising out of a breach of the foregoing representation.

ARTICLE 23

MORTGAGEE PROTECTION

23.1 SUBORDINATION AND ATTORNMENT

This Lease is and shall be expressly subject and subordinate at all times to (i) any ground or underlying lease of the Real Property, now or hereafter existing, and all amendments, extensions, renewals and modifications to any such lease, and (ii) the lien of any mortgage or trust deed now or hereafter encumbering fee title to the Real Property and/or the leasehold estate under any such lease, and all amendments, extensions, renewals, replacements and modifications of such mortgage or trust deed and/or the obligation secured thereby, unless such ground lease or ground lessor, or mortgage, trust deed or Mortgagee, expressly provides or elects that the Lease shall be superior to such lease or mortgage or trust deed. If any such mortgage or trust deed is foreclosed (including any sale of the Real Property pursuant to a power of sale), or if any such lease is terminated, upon request of the Mortgagee or ground lessor, as the case may be, Tenant shall attorn to the purchaser at the foreclosure sale or to the ground lessor under such lease, as the case may be, provided, however, that such purchaser or ground lessor shall not be (i) bound by any payment of Rent for more than one month in advance except payments in the nature of security for the performance by Tenant of its obligations under this Lease; (ii) subject to any offset, defense or damages arising out of a default of any obligations of any preceding Landlord; or (iii) bound by any amendment or modification of this Lease made without the written consent of the Mortgagee or ground lessor subsequent to the date of such Mortgagee’s or ground lessor’s security interest; or (iv) liable for any security deposits not actually received in cash by such purchaser or ground lessor. This subordination shall be self-operative and no further certificate or instrument of subordination need be required by any such Mortgagee or ground lessor. In confirmation of such subordination, however, Tenant shall execute promptly any reasonable certificate or instrument that Landlord, Mortgagee or ground lessor may request. Tenant hereby constitutes Landlord as Tenant’s attorney-in-fact to execute such certificate or instrument for and on behalf of Tenant upon Tenant’s failure to do so within fifteen (15) days of a request to do so. Upon request by such successor in interest, Tenant shall execute and deliver reasonable instruments confirming the attornment provided for herein.

Notwithstanding the foregoing, upon written request by Tenant, Landlord will use reasonable efforts to obtain a non-disturbance, subordination and attornment agreement from Landlord’s then current Mortgagee on such Mortgagee’s then current standard form of agreement. “Reasonable efforts” of Landlord shall not require Landlord to incur any cost, expense or liability to obtain such agreement, it being agreed that Tenant shall be responsible for any fee or review costs charged by the Mortgagee. Upon request of Landlord, Tenant will execute the Mortgagee’s form of non-disturbance, subordination and attornment agreement and return the same to Landlord for execution by the Mortgagee. Landlord’s failure to obtain a non-disturbance, subordination and attornment agreement for Tenant shall have no effect on the rights, obligations and liabilities of Landlord and Tenant or be considered to be a default by Landlord hereunder.

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23.2 MORTGAGEE PROTECTION

Tenant agrees to give any Mortgagee or ground lessor, by registered or certified mail, a copy of any notice of default served upon the Landlord by Tenant, provided that prior to such notice Tenant has received notice (by way of service on Tenant of a copy of an assignment of rents and leases, or otherwise) of the address of such Mortgagee or ground lessor. Tenant further agrees that if Landlord shall have failed to cure such default within the time provided for in this Lease, then the Mortgagee or ground lessor shall have an additional thirty (30) days after receipt of notice thereof within which to cure such default or if such default cannot be cured within that time, then such additional notice time as may be necessary, if, within such thirty (30) days, any Mortgagee or ground lessor has commenced and is diligently pursuing the remedies necessary to cure such default (including commencement of foreclosure proceedings or other proceedings to acquire possession of the Real Property, if necessary to effect such cure). Such period of time shall be extended by any period within which such Mortgagee or ground lessor is prevented from commencing or pursuing such foreclosure proceedings or other proceedings to acquire possession of the Real Property by reason of Landlord’s bankruptcy. Until the time allowed as aforesaid for Mortgagee or ground lessor to cure such defaults has expired without cure, Tenant shall have no right to, and shall not, terminate this Lease on account of default. This Lease may not be modified or amended so as to reduce the Rent or shorten the Term, or so as to adversely affect in any other respect to any material extent the rights of the Landlord, nor shall this Lease be canceled or surrendered, without the prior written consent, in each instance, of the ground lessor or the Mortgagee.

ARTICLE 24

NOTICES

All notices, demands or requests provided for or permitted to be given pursuant to this Lease must be in writing and shall be personally delivered, sent by Federal Express or other reputable overnight courier service, or mailed by first class, registered or certified United States mail, return receipt requested, postage prepaid. All notices, demands or requests to be sent pursuant to this Lease shall be deemed to have been properly given or served by delivering or sending the same in accordance with this Section, addressed to the parties hereto at their respective addresses listed in Sections 1.1. Notices, demands or requests sent by mail or overnight courier service as described above shall be effective upon deposit in the mail or with such courier service. However, the time period in which a response to any such notice, demand or request must be given shall commence to run from (i) in the case of delivery by mail, the date of receipt on the return receipt of the notice, demand or request by the addressee thereof, or (ii) in the case of delivery by Federal Express or other overnight courier service, the date of acceptance of delivery by an employee, officer, director or partner of Landlord or Tenant. Rejection or other refusal to accept or the inability to deliver because of changed address of which no notice was given, as indicated by advice from Federal Express or other overnight courier service or by mail return receipt, shall be deemed to be receipt of notice, demand or request sent. Notices may also be served by personal service upon any officer, director or partner of Landlord or Tenant, and shall be effective upon such service. By giving to the other party at least thirty (30) days written notice thereof, either party shall have the right from time to

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time during the term of this Lease to change their respective addresses for notices, statements, demands and requests, provided such new address shall be within the United States of America.

ARTICLE 25

MISCELLANEOUS

25.1 LATE CHARGES

(a) All payments required hereunder (other than the Monthly Base Rent, Rent Adjustments, and Rent Adjustment Deposits, which shall be due as hereinbefore provided) to Landlord shall be paid within ten (10) business days after Landlord’s demand therefor. All such amounts (including Monthly Base Rent, Rent Adjustments, and Rent Adjustment Deposits) not paid when due shall bear interest from the date due until the date paid at the Default Rate in effect on the date such payment was due.

(b) In the event Tenant is more than five (5) days late in paying any installment of Rent due under this Lease, Tenant shall pay Landlord a late charge equal to five percent (5%) of the delinquent installment of Rent. The parties agree that (i) such delinquency will cause Landlord to incur costs and expenses not contemplated herein, the exact amount of which will be difficult to calculate, including the cost and expense that will be incurred by Landlord in processing each delinquent payment of rent by Tenant, (b) the amount of such late charge represents a reasonable estimate of such costs and expenses and that such late charge shall be paid to Landlord for each delinquent payment in addition to all Rent otherwise due hereunder. The parties further agree that the payment of late charges and the payment of interest provided for in subparagraph (a) above are distinct and separate from one another in that the payment of interest is to compensate Landlord for its inability to use the money improperly withheld by Tenant, while the payment of late charges is to compensate Landlord for its additional administrative expenses in handling and processing delinquent payments.

(c) Payment of interest at the Default Rate and/or of late charges shall not excuse or cure any default by Tenant under this Lease, nor shall the foregoing provisions of this Article or any such payments prevent Landlord from exercising any right or remedy available to Landlord upon Tenant’s failure to pay Rent when due, including the right to terminate this Lease.

25.2 NO JURY TRIAL; VENUE; JURISDICTION

Each party hereto (which includes any assignee, successor, heir or personal representative of a party) shall not seek a jury trial, hereby waives trial by jury, and hereby further waives any objection to venue in the County in which the Property is located, and agrees and consents to personal jurisdiction of the courts of the State of California, in any action or proceeding or counterclaim brought by any party hereto against the other on any matter whatsoever arising out of or in any way connected with this Lease, the relationship of Landlord and Tenant, Tenant’s

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use or occupancy of the Premises, or any claim of injury or damage, or the enforcement of any remedy under any statute, emergency or otherwise, whether any of the foregoing is based on this Lease or on tort law. No party will seek to consolidate any such action in which a jury has been waived with any other action in which a jury trial cannot or has not been waived. It is the intention of the parties that these provisions shall be subject to no exceptions. By execution of this Lease the parties agree that this provision may be filed by any party hereto with the clerk or judge before whom any action is instituted, which filing shall constitute the written consent to a waiver of jury trial pursuant to and in accordance with Section 631 of the California Code of Civil Procedure. No party has in any way agreed with or represented to any other party that the provisions of this Section will not be fully enforced in all instances. The provisions of this Section shall survive the expiration or earlier termination of this Lease.

25.3 OPTION

This Lease shall not become effective as a lease or otherwise until executed and delivered by both Landlord and Tenant. The submission of the Lease to Tenant does not constitute a reservation of or option for the Premises, but when executed by Tenant and delivered to Landlord, the Lease shall constitute an irrevocable offer by Tenant in effect for fifteen (15) days to lease the Premises on the terms and conditions herein contained.

25.4 AUTHORITY

Each party represents and warrants to the other party that it has full authority and power to enter into and perform its obligations under this Lease, that the person executing this Lease is fully empowered to do so, and that no consent or authorization is necessary from any third party. Either party may request that the other party provide the requesting party with evidence of authority.

25.5 ENTIRE AGREEMENT

This Lease, plus the Exhibits and any Rider, attached hereto contain the entire agreement between Landlord and Tenant concerning the Premises and there are no other agreements, either oral or written, and no other representations or statements, either oral or written, on which Tenant has relied. This Lease shall not be modified except by a writing executed by Landlord and Tenant.

25.6 MODIFICATION OF LEASE FOR BENEFIT OF MORTGAGEE

If Mortgagee of Landlord requires a modification of this Lease which shall not result in any increased cost or expense to Tenant or in any other substantial and adverse change in the rights and obligations of Tenant hereunder, then Tenant agrees that the Lease may be so modified.

25.7 EXCULPATION

Tenant agrees, on its behalf and on behalf of its successors and assigns, that any liability or obligation under this Lease shall only be enforced against Landlord’s equity interest in the Property and in no event against any other assets of the Landlord, or Landlord’s officers or

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directors or partners, and that any liability of Landlord with respect to this Lease shall be so limited and Tenant shall not be entitled to any judgment in excess of such amount.

25.8 ACCORD AND SATISFACTION

No payment by Tenant or receipt by Landlord of a lesser amount than any installment or payment of Rent due shall be deemed to be other than on account of the amount due, and no endorsement or statement on any check or any letter accompanying any check or payment of Rent shall be deemed an accord and satisfaction, and Landlord may accept such check or payment without prejudice to Landlord’s right to recover the balance of such installment or payment of Rent or pursue any other remedies available to Landlord. No receipt of money by Landlord from Tenant after the termination of this Lease or Tenant’s right of possession of the Premises shall reinstate, continue or extend the Term. Receipt or acceptance of payment from anyone other than Tenant, including an assignee of Tenant, is not a waiver of any breach of Article Ten, and Landlord may accept such payment on account of the amount due without prejudice to Landlord’s right to pursue any remedies available to Landlord.

25.9 LANDLORD’S OBLIGATIONS ON SALE OF BUILDING

In the event of any sale or other transfer of the Building, Landlord shall be entirely freed and relieved of all agreements and obligations of Landlord hereunder accruing or to be performed after the date of such sale or transfer, provided such transferee has expressly assumed such obligations of Landlord. Landlord shall have the right to assign this Lease to an entity comprised of the principals of Landlord or affiliates of such entities. Upon such assignment and assumption of the obligations of Landlord hereunder, Landlord shall be entirely freed and relieved of all obligations hereunder after the date of transfer.

25.10 BINDING EFFECT

Subject to the provisions of Article Ten, this Lease shall be binding upon and inure to the benefit of Landlord and Tenant and their respective heirs, legal representatives, successors and permitted assigns.

25.11 CAPTIONS

The Article and Section captions in this Lease are inserted only as a matter of convenience and in no way define, limit, construe, or describe the scope or intent of such Articles and Sections.

25.12 TIME; APPLICABLE LAW; CONSTRUCTION

Time is of the essence of this Lease and each and all of its provisions. This Lease shall be construed in accordance with the Laws of the State of California. If more than one person signs this Lease as Tenant, the obligations hereunder imposed shall be joint and several. If any term, covenant or condition of this Lease or the application thereof to any person or circumstance shall, to any extent, be invalid or unenforceable, the remainder of this Lease, or the application of such term, covenant or condition to persons or circumstances other than those as to which it is held invalid or unenforceable, shall not be affected thereby and each item, covenant or condition

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of this Lease shall be valid and be enforced to the fullest extent permitted by Law. Wherever the term “including” or “includes” is used in this Lease, it shall have the same meaning as if followed by the phrase “but not limited to”. The language in all parts of this Lease shall be construed according to its normal and usual meaning and not strictly for or against either Landlord or Tenant.

25.13 ABANDONMENT

In the event Tenant abandons the Premises but is otherwise in compliance with all the terms, covenants and conditions of this Lease, Landlord shall (i) have the right to enter into the Premises in order to show the space to prospective tenants, (ii) have the right to reduce the services provided to Tenant pursuant to the terms of this Lease to such levels as Landlord reasonably determines to be adequate services for an unoccupied premises and (iii) during the last six (6) months of the Term, have the right to prepare the Premises for occupancy by another tenant upon the end of the Term. Tenant expressly acknowledges that in the absence of written notice pursuant to Section 11.2(b) or pursuant to California Civil Code Section 1951.3 terminating Tenant’s right to possession, none of the foregoing acts of Landlord or any other act of Landlord shall constitute a termination of Tenant’s right to possession or an acceptance of Tenant’s surrender of the Premises, and the Lease shall continue in effect.

25.14 LANDLORD’S RIGHT TO PERFORM TENANT’S DUTIES

If Tenant fails timely to perform any of its duties under this Lease or the Workletter, Landlord shall have the right (but not the obligation), to perform such duty on behalf and at the expense of Tenant without prior notice to Tenant, and all sums expended or expenses incurred by Landlord in performing such duty shall be deemed to be additional Rent under this Lease and shall be due and payable upon demand by Landlord.

25.15 SECURITY SYSTEM

Landlord shall not be obligated to provide or maintain any security patrol or security system. Landlord shall not be responsible for the quality of any such patrol or system which may be provided hereunder or for damage or injury to Tenant, its employees, invitees or others due to the failure, action or inaction of such patrol or system.

25.16 NO LIGHT, AIR OR VIEW EASEMENTS

Any diminution or shutting off of light, air or view by any structure which may be erected on lands of or adjacent to the Property shall in no way affect this Lease or impose any liability on Landlord.

25.17 CONSENTS

Wherever the consent, approval, judgment or determination of Landlord or Tenant is required or permitted under this Lease, such consent, approval, judgment or determination shall not be unreasonably withheld, conditioned or delayed, unless the Lease specifically otherwise specifies the standards under which Landlord or Tenant may withhold its consent.

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25.18 RECORDATION

Neither this Lease, nor any notice nor memorandum regarding the terms hereof, shall be recorded by Tenant. Any such unauthorized recording shall be a Default for which there shall be no cure or grace period. Tenant agrees to execute and acknowledge, at the request of Landlord, a memorandum of this Lease, in recordable form.

25.19 SURVIVAL

The waivers of the right of jury trial, the other waivers of claims or rights, the releases and the obligations of Tenant under this Lease to indemnify, protect, defend and hold harmless Landlord and/or Indemnitees shall survive the expiration or termination of this Lease, and so shall all other obligations or agreements which by their terms survive expiration or termination of the Lease.

25.20 RIDERS

Any Rider attached hereto and executed both by Landlord and Tenant shall be deemed to be a part hereof and hereby incorporated herein.

IN WITNESS WHEREOF, this Lease has been executed as of the date set forth in Section 1.1 hereof.

TENANT:
DYNAVAX TECHNOLOGIES CORPORATION,
a Delaware corporation
By:		/s/ Xxxxxxxx Xxx

Print Name:     Xxxxxxxx Xxx

Its:         VP Finance

LANDLORD:
0000 XXXXXXX XXXXXX, L.L.C.,
a California limited liability company
By:		/s/ Xxxxxxx X. Xxxxxxx
		Xxxxxxx X. Xxxxxxx
		Managing Member

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EXHIBIT A

PLAN OF PREMISES

A-1

EXHIBIT B

WORKLETTER AGREEMENT

This Workletter Agreement (“Workletter”) is attached to and a part of a certain Lease herewith by 0000 Xxxxxxx Xxxxxx, L.L.C., a California limited liability company, as Landlord, and Dynavax Technologies Corporation, a Delaware corporation, as Tenant, for the Premises as described therein (the “Lease”).

1.          Capitalized terms used in this Work Letter shall have the same meanings set forth in the Lease except as otherwise specified herein and except for terms capitalized in the ordinary course of punctuation.

2.          Landlord shall perform improvements to the Premises in accordance with the preliminary space plan attached hereto as Schedule 1 (the “Space Plan”), such Space Plan being subject to final approval by Landlord and Tenant (acting in good faith), using Building standard methods, materials and finishes that are consistent with those in the space leased by Tenant from Landlord in the adjacent building located at 0000 Xxxxxxx Xxxxxx and shall use commercially reasonable efforts to Substantially Complete the Landlord Work by the Projected Completion Date. The improvements to be performed in accordance with this Workletter and the Space Plan are hereinafter referred to as the “Landlord Work” and shall be performed at Landlord’s sole cost and expense. Notwithstanding the foregoing sentence to the contrary, following Substantial Completion of the Landlord Work, Tenant shall pay for the items of the Landlord Work set forth in Schedule 2 to this Workletter as additional Rent, and such payment shall be made within two (2) weeks following Landlord’s demand therefor. Landlord shall enter into direct contracts for the Landlord Work with subcontractors selected by Landlord.

3.          All other work and upgrades, subject to Landlord’s approval, shall be at Tenant’s sole cost and expense (subject to the terms of Section 9.1 of the Lease), plus any applicable state sales or use tax thereon. Tenant shall be responsible for any Tenant Delay in completion of the Landlord Work resulting from any such other work and upgrades requested or performed by Tenant. Subject to the terms and conditions of the Lease including, without limitation, Article 17, and provided Landlord has received evidence of Tenant’s procurement of all insurance coverage required under the Lease, Tenant, at Tenant’s sole risk, shall be permitted to enter the Premises from and after the mutual execution and delivery of the Lease (and concurrently during the period of the performance of the Landlord Work), solely for the purpose of installing Tenant’s voice and data cabling and any security system. Landlord may withdraw such permission for Tenant to enter the Premises, if Landlord determines that such entry is causing a dangerous situation for Landlord, Tenant, or Tenant’s vendors or contractors, or is otherwise interfering with the progress of the Landlord Work. Tenant will have no obligation to pay Rent during such early access period.

4.          Other than as specified above, Landlord’s supervision or performance of any work for or on behalf of Tenant shall not be deemed to be a representation by Landlord that such work complies with applicable insurance requirements, building codes, ordinances, laws or regulations or that the improvements constructed will be adequate for Tenant’s use.

B-1

SCHEDULE 1 TO EXHIBIT B

SPACE PLAN

B-2

SCHEDULE 2 TO EXHIBIT B

LANDLORD WORK ITEMS SUBJECT TO TENANT REIMBURSEMENT

— One extra shower, approximate cost of $7,500

— Projection equipment support and electrical, approximate cost of $3,500

— Acoustic paneling at conference room, approximate cost of $24,800.00

— Lockers, approximate cost of $6,100.00

Tenant, in its sole and absolute discretion, reserves the right to remove all or any portion of the items set forth above from the scope of work if it so elects by providing written notice to Landlord prior to the date Landlord has incurred costs in connection with the applicable item; otherwise, Tenant shall be required to pay the costs incurred by Landlord in connection with the applicable item.

B-3

EXHIBIT C

RULES AND REGULATIONS

1.         No sidewalks, entrance, passages, courts, elevators, vestibules, stairways, corridors or halls shall be obstructed or encumbered by Tenant or used for any purpose other than ingress and egress to and from the Premises and if the Premises are situated on the ground floor of the Property, Tenant shall further, at Tenant’s own expense, keep the sidewalks and curb directly in front of the Premises clean and free from rubbish.

2.         No awning or other Projection shall be attached to the outside walls or windows of the Property without the prior written consent of Landlord. No curtains, blinds, shades, drapes or screens shall be attached to or hung in, or used in connection with any window or door of the Premises, without the prior written consent of Landlord. Such awnings, Projections, curtains, blinds, shades, drapes, screens and other fixtures must be of a quality, type, design, color, material and general appearance approved by Landlord, and shall be attached in the manner approved by Landlord. All lighting fixtures hung in offices or spaces along the perimeter of the Premises must be of a quality, type, design, bulb color, size and general appearance approved by Landlord.

3.         No sign, advertisement, notice, lettering, decoration or other thing shall be exhibited, inscribed, painted or affixed by Tenant on any part of the outside or inside of the Premises or of the Property, without the prior written consent of Landlord. In the event of the violation of the foregoing by Tenant, Landlord may remove same without any liability, and may charge the expense incurred by such removal to Tenant.

4.         The sashes, sash doors, skylights, windows and doors that reflect or admit light or air into the halls, passageways or other public places in the Property shall not be covered or obstructed by Tenant, nor shall any bottles, parcels or other articles be placed on the window xxxxx or in the public portions of the Property.

5.         No showcases or other articles shall be put in front of or affixed to any part of the exterior of the Property, nor placed in public portions thereof without the prior written consent of Landlord.

6.         The water and wash closets and other plumbing fixtures shall not be used for any purposes other than those for which they were constructed, and no sweepings, rubbish, rags or other substances shall be thrown therein. All damages resulting from any misuse of the fixtures shall be borne by Tenant to the extent that Tenant or Tenant’s agents, servants, employees, contractors, visitors or licensees shall have caused the same.

7.         Tenant shall not xxxx, paint, drill into or in any way deface any part of the Premises or the Property. No boring, cutting or stringing of wires shall be permitted, except with the prior written consent of Landlord, and as Landlord may direct.

8.         No animal or bird of any kind shall be brought into or kept in or about the Premises or the Property, except seeing-eye dogs, other seeing-eye animals or animals used in connection with Tenant’s laboratory use of the Premises.

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9.         Prior to leaving the Premises for the day, Tenant shall draw or lower window coverings and extinguish all lights.

10.       Tenant shall not make, or permit to be made, any unseemly or disturbing noises or disturb or interfere with occupants of the Property, or neighboring buildings or premises, or those having business with them. Tenant shall not throw anything out of the doors, windows or skylights or down the passageways.

11.       Neither Tenant nor any of Tenant’s agents, servants, employees, contractors, visitors or licensees shall at any time bring or keep upon the Premises any flammable, combustible or explosive fluid, chemical or substance.

12.       No additional locks, bolts or mail slots of any kind shall be placed upon any of the doors or windows by Tenant, nor shall any change be made in existing locks or the mechanism thereof. Tenant must, upon the termination of the tenancy, restore to Landlord all keys of stores, offices and toilet rooms, either furnished to, or otherwise procured by Tenant, and in the event of the loss of any keys so furnished, Tenant shall pay to Landlord the cost thereof.

13.       All removals, or the carrying in or out of any safes, freight, furniture, construction material, bulky matter or heavy equipment of any description must take place during the hours which Landlord or its agent may determine from time to time. Landlord reserves the right to prescribe the weight and position of all safes, which must be placed upon two-inch thick plank strips to distribute the weight. The moving of safes, freight, furniture, fixtures, bulky matter or heavy equipment of any kind must be made upon previous notice to the Building Manager and in a manner and at times prescribed by him, and the persons employed by Tenant for such work are subject to Landlord’s prior approval. Landlord reserves the right to inspect all safes, freight or other bulky articles to be brought into the Property and to exclude from the Property all safes, freight or other bulky articles which violate any of these Rules and Regulations or the Lease of which these Rules and Regulations are a part.

14.       Tenant shall not purchase spring water, towels, janitorial or maintenance or other like service from any company or persons not approved by Landlord. Landlord shall approve a sufficient number of sources of such services to provide Tenant with a reasonable selection, but only in such instances and to such extent as Landlord in its judgment shall consider consistent with security and proper operation of the Property.

15.       Landlord shall have the right to prohibit any advertising or business conducted by Tenant referring to the Property which, in Landlord’s opinion, tends to impair the reputation of the Property or its desirability as a first class building for offices and/or commercial services and upon notice from Landlord, Tenant shall refrain from or discontinue such advertising.

16.       Tenant’s contractors shall, while in the Premises or elsewhere in the Property, be subject to and under the control and direction of the Building Manager (but not as agent or servant of said Building Manager or of Landlord).

17.       If the Premises is or becomes infested with vermin as a result of the use or any misuse or neglect of the Premises by Tenant, its agents, servants, employees, contractors, visitors or licensees, Tenant shall forthwith at Tenant’s expense cause the same to be exterminated from

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time to time to the satisfaction of Landlord and shall employ such licensed exterminators as shall be approved in writing in advance by Landlord.

18.       The requirements of Tenant will be attended to only upon application at the office of the Property. Property personnel shall not perform any work or do anything outside of their regular duties unless under special instructions from the office of the Landlord.

19.       Canvassing, soliciting and peddling in the Property are prohibited and Tenant shall cooperate to prevent the same.

20.       No water cooler, air conditioning unit or system or other apparatus shall be installed or used by Tenant without the written consent of Landlord.

21.       There shall not be used in any premises, or in the public halls, plaza areas, lobbies, or elsewhere in the Property, either by Tenant or by Tenant’s contractors or others, in the delivery or receipt of merchandise, any hand trucks or dollies, except those equipped with rubber tires and sideguards.

22.       Tenant, Tenant’s agents, servants, employees, contractors, licensees, or visitors shall not park any vehicles in any driveways, service entrances, or areas posted “No Parking” and shall comply with any other parking restrictions imposed by Landlord from time to time.

23.       Tenant shall install and maintain, at Tenant’s sole cost and expense, an adequate visibly marked (at all times properly operational) fire extinguisher next to any duplicating or photocopying machine or similar heat producing equipment, which may or may not contain combustible material, in the Premises.

24.       Tenant shall not use the name of the Property for any purpose other than as the address of the business to be conducted by Tenant in the Premises, nor shall Tenant use any picture of the Property in its advertising, stationery or in any other manner without the prior written permission of Landlord. Landlord expressly reserves the right at any time to change said name without in any manner being liable to Tenant therefor.

25.       Tenant shall not prepare any food nor do any cooking, operate or conduct any restaurant, luncheonette or cafeteria for the sale or service of food or beverages to its employees or to others, except that food and beverage preparation by Tenant’s employees using microwave ovens or coffee makers shall be permitted provided no odors of cooking or other processes emanate from the Premises without the prior approval of Landlord. Tenant shall not install or permit the installation or use of any vending machine or permit the delivery of any food or beverage to the Premises except by such persons and in such manner as are approved in advance in writing by Landlord.

26.       The Premises shall not be used as an employment agency, a public stenographer or typist, a labor union office, a physician’s or dentist’s office, a dance or music studio, a school, a beauty salon, or xxxxxx shop, the business of photographic, multilith or multigraph reproductions or offset printing (not precluding using any part of the Premises for photographic, multilith or multigraph reproductions solely in connection with Tenant’s own business and/or activities), a restaurant or bar, an establishment for the sale of confectionery, soda, beverages,

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sandwiches, ice cream or baked goods, an establishment for preparing, dispensing or consumption of food or beverages of any kind in any manner whatsoever, or news or cigar stand, or a radio, television or recording studio, theatre or exhibition hall, or manufacturing, or the storage or sale of merchandise, goods, services or property of any kind at wholesale, retail or auction, or for lodging, sleeping or for any immoral purposes.

27.       Business machines and mechanical equipment shall be placed and maintained by Tenant at Tenant’s expense in settings sufficient in Landlord’s judgment to absorb and prevent vibration, noise and annoyance. Tenant shall not install any machine or equipment which causes noise, heat, cold or vibration to be transmitted to the structure of the building in which the Premises are located without Landlord’s prior written consent, which consent may be conditioned on such terms as Landlord may require. Tenant shall not place a load upon any floor of the Premises exceeding the floor load per square foot that such floor was designed to carry and which is allowed by Law.

28.       Tenant shall not bring any Hazardous Materials onto the Premises except for those that are in general commercial and laboratory use and are incidental to Tenant’s business operations and only in quantities suitable for immediate use.

29.       Tenant shall not store any vehicle within the parking area. Tenant’s parking rights are limited to the use of parking spaces for short-term parking, of up to twenty-four (24) hours, of vehicles utilized in the normal and regular daily travel to and from the Property. Tenants who wish to park a vehicle for longer than a 24-hour period shall notify the Building Manager for the Property and consent to such long-term parking may be granted for periods up to two (2) weeks. Any motor vehicles parked without the prior written consent of the Building Manager for the Property for longer than a 24-hour period shall be deemed stored in violation of this rule and regulation and shall be towed away and stored at the owner’s expense or disposed of as provided by Law.

30.       Smoking is prohibited in the Building, including all lobbies, all hallways, all elevators and all lavatories.

31.       In the event of any conflict between these Rules and Regulations and any other Lease provision, such other Lease provision shall control.

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RIDER 1

COMMENCEMENT DATE AGREEMENT

0000 Xxxxxxx Xxxxxx, L.L.C., a California limited liability company (“Landlord”), and Dynavax Technologies Corporation, a Delaware corporation (“Tenant”), have entered into a certain Lease dated as of December 12, 2012 (the “Lease”).

WHEREAS, Landlord and Tenant wish to confirm and memorialize the Commencement Date and Expiration Date of the Lease as provided for in Section 2.2(b) of the Lease;

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants contained herein and in the Lease, Landlord and Tenant agree as follows:

1.         Unless otherwise defined herein, all capitalized terms shall have the same meaning ascribed to them in the Lease.

2.         The Commencement Date of the Lease is                       .

3.         The Expiration Date of the Lease is                         .

4.         Tenant hereby confirms the following:

(a)        That it has accepted possession of the Premises pursuant to the terms of the Lease; and

(b)        That the Landlord Work is Substantially Complete; and

(c)        That the Lease is in full force and effect.

6.         Except as expressly modified hereby, all terms and provisions of the Lease are hereby ratified and confirmed and shall remain in full force and effect and binding on the parties hereto.

7.         The Lease and this Commencement Date Agreement contain all of the terms, covenants, conditions and agreements between the Landlord and the Tenant relating to the subject matter herein. No prior other agreements or understandings pertaining to such matters are valid or of any force and effect.

TENANT:

DYNAVAX TECHNOLOGIES CORPORATION,

a Delaware corporation

By:

Print Name:

Its:

LANDLORD:
0000 XXXXXXX XXXXXX, L.L.C.,
a California limited liability company
By:		/s/ Xxxxxxx X. Xxxxxxx
		Xxxxxxx X. Xxxxxxx
		Managing Member

1856342.7

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