LEASE RREEF AMERICA REIT II CORP. PPP, Landlord, and ALNYLAM PHARMACEUTICALS, INC., Tenant Riverfront Office Park Cambridge, Massachusetts

Exhibit 10.5

LEASE

RREEF AMERICA REIT II CORP. PPP,

Landlord,

and

ALNYLAM PHARMACEUTICALS, INC.,

Tenant

Riverfront Office Park

Cambridge, Massachusetts

TABLE OF CONTENTS

(continued)


		Page
1.	USE AND RESTRICTIONS ON USE		1

2.	TERM		2

3.	RENT		3

4.	RENT ADJUSTMENTS		4

5.	SECURITY DEPOSIT		5

6.	ALTERATIONS		7

7.	REPAIR		8

8.	LIENS		8

9.	ASSIGNMENT AND SUBLETTING		8

10.	INDEMNIFICATION		10

11.	INSURANCE		11

12.	WAIVER OF SUBROGATION		11

13.	SERVICES AND UTILITIES		12

14.	HOLDING OVER		13

15.	▇▇▇▇▇▇▇▇▇▇▇▇▇		▇▇

▇▇.	RULES AND REGULATIONS		14

17.	REENTRY BY LANDLORD		14

18.	DEFAULT		14

19.	REMEDIES		15

20.	TENANT’S BANKRUPTCY OR INSOLVENCY		18

21.	QUIET ENJOYMENT		18

22.	CASUALTY		18

23.	EMINENT DOMAIN		19

24.	SALE BY LANDLORD		20

25.	ESTOPPEL CERTIFICATES		20

26.	SURRENDER OF PREMISES		20

27.	NOTICES		21

28.	TAXES PAYABLE BY TENANT		21

29.	RELOCATION OF TENANT		21

30.	DEFINED TERMS AND HEADINGS		21

31.	TENANT’S ▇▇▇▇▇▇▇▇▇		▇▇

▇▇.	FINANCIAL STATEMENTS AND CREDIT REPORTS		22

33.	COMMISSIONS		22

34.	TIME AND APPLICABLE LAW		22

35.	SUCCESSORS AND ASSIGNS		22

TABLE OF CONTENTS

(continued)


		Page
36.	ENTIRE AGREEMENT		22

37.	EXAMINATION NOT OPTION		23

38.	RECORDATION		23

39.	PARKING		23

40.	ROOFTOP ANTENNA		24

41.	LIMITATION OF LANDLORD’S LIABILITY		25

EXHIBIT A – FLOOR PLAN DEPICTING THE PREMISES

EXHIBIT A-1 – SITE PLAN

EXHIBIT A-2 – LEGAL DESCRIPTION OF THE LOT

EXHIBIT B – INITIAL ALTERATIONS

EXHIBIT C – COMMENCEMENT DATE MEMORANDUM

EXHIBIT D – RULES AND REGULATIONS

EXHIBIT E – ELECTRICITY COSTS

GROSS (BY)-INS OFFICE LEASE

REFERENCE PAGES

BUILDING:

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LANDLORD:

RREEF AMERICA REIT II CORP. PPP, a Maryland corporation

LANDLORD’S ADDRESS:

c/o CB ▇▇▇▇▇▇▇ ▇▇▇▇▇ New England

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WIRE INSTRUCTIONS AND/OR

RREEF America REIT II CORP. PPP, Riverfront

ADDRESS FOR RENT PAYMENT:

61.J15 Riverfront Office – 1 Main

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LEASE REFERENCE DATE:

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ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation

TENANT’S NOTICE ADDRESS:

(a) As of beginning of Term:

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(b) Prior to beginning of Term (if different):

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PREMISES ADDRESS:

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PREMISES RENTABLE AREA:

Approximately 23,350 rentable sq. ft. (for outline of Premises see Exhibit A)

SCHEDULED COMMENCEMENT DATE:

March 13, 2015

RENT COMMENCEMENT DATE:

The earlier to occur of (i) sixty (60) days after the Commencement Date, or (ii) the date on which Tenant commences business operations in the Premises.


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Initials

iii

TERM OF LEASE:

Approximately forty-eight (48) months beginning on the Commencement Date and ending on the Termination Date. The period from the Rent Commencement Date to the last day of the same month is the “Rent Commencement Month.”

TERMINATION DATE:

The last day of the forty-sixth (46th) full calendar month after (if the Rent Commencement Month is not a full calendar month), or from and including (if the Rent Commencement Month is a full calendar month), the Rent Commencement Month.

ANNUAL RENT and MONTHLY

INSTALLMENT OF RENT (Article 3):


Period		Rentable Square Footage	Rent Per Square Foot	Annual Rent	Monthly Installment of Rent
from	to	Rentable Square Footage	Rent Per Square Foot	Annual Rent	Monthly Installment of Rent
Month 1	Month 12	23,350	$74.00	$1,727,900.00	$143,991.67
Month 13	Month 24	23,350	$75.00	$1,751,250.00	$145,937.50
Month 25	Month 36	23,350	$76.00	$1,774,600.00	$147,883.33
Month 37	Month 46	23,350	$77.00	$1,797,950.00	$149,829.17

Month 1 is the period beginning on the Rent Commencement Date and ending at the end of the first full calendar month of the Term (by way of example only, if the Rent Commencement Date were June 1, 2015, Month 1 would be the period June 1, 2015 through June 30, 2015; if the Rent Commencement Date were May 15, 2015, Month 1 would be the period from May 15, 2015 through June 30, 2015). Month 2 is the calendar month period immediately following Month 1; Month 3 is the full calendar month following Month 2, and so forth.

The actual dates are to be confirmed pursuant to Section 2.1.

All rental amounts are net of Tenant electricity.

BASE YEAR (EXPENSES):

2016

BASE YEAR (INSURANCE):

2016

BASE YEAR (TAXES):

Fiscal 2016 (Taxes for the period July 1, 2015 to June 30, 2016)

TENANT’S PROPORTIONATE SHARE:

6.8541%

SECURITY DEPOSIT:

$287,983.34 in the form of an irrevocable letter of credit; see Article 5.

ASSIGNMENT/SUBLETTING FEE:

$1,500.00

AFTER-HOURS HVAC COST:

$2.00 per heat pump per hour with a minimum charge of $30.00 per request, subject to change at any time


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PARKING

Twenty-three (23) passes at $290.00 per month (see Article 39)

REAL ESTATE BROKER DUE COMMISSION:

▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇▇▇ of Massachusetts, Inc., for Landlord; Transwestern/RBJ, for Tenant

TENANT’S NAICS CODE:

541711 Research and Development in Biotechnology

BUILDING BUSINESS HOURS:

Monday through Friday 8:00 a.m. – 6:00 p.m. (excluding Massachusetts state holidays) Saturday 8:00 a.m. – 12:00 p.m.

AMORTIZATION RATE:

11%

The Reference Pages information is incorporated into and made a part of the Lease. In the event of any conflict between any Reference Pages information and the Lease, the Lease shall control. This Lease includes Exhibits A through F, all of which are made a part of this Lease.

LANDLORD:

TENANT:

RREEF AMERICA REIT II CORP. PPP, a Maryland corporation

ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation

By:

/s/ ▇.▇. ▇▇▇▇▇▇

By:

/s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

Name:

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Name:

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Title:

Vice President

Title:

C.E.O.

Dated:

3-18

, 2015

Dated:

, 2015


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Initials

LEASE

By this Lease Landlord leases to Tenant and Tenant leases from Landlord the Premises in the Building as set forth and described on the Reference Pages. The Premises are depicted on the floor plan attached hereto as Exhibit A, and the Building is depicted on the site plan attached hereto as Exhibit A-1. The Building is located on the Lot legally described on Exhibit A-2. The Reference Pages, including all terms defined thereon, are incorporated as part of this Lease.

1. USE AND RESTRICTIONS ON USE.

1.1 The Premises are to be used solely for general office purposes. Tenant shall have access to the Premises 24 hours a day, 7 days a week. Tenant shall not do or permit anything to be done in or about the Premises which will in any way obstruct or interfere with the rights of other tenants or occupants of the Building or injure, annoy, or disturb them, or allow the Premises to be used for any improper, immoral, unlawful, or objectionable purpose, or commit any waste. Tenant shall not do, permit or suffer in, on, or about the Premises the sale of any alcoholic liquor without the written consent of Landlord first obtained. Tenant shall comply with all governmental laws, ordinances and regulations applicable to the use of the Premises and its occupancy and shall promptly comply with all governmental orders and directions for the correction, prevention and abatement of any violations in the Building or appurtenant land, caused or permitted by, or resulting from the specific use by, Tenant, or in or upon, or in connection with, the Premises, all at Tenant’s sole expense. Tenant shall not do or permit anything to be done on or about the Premises or bring or keep anything into the Premises which will in any way increase the rate of, invalidate or prevent the procuring of any insurance protecting against loss or damage to the Building or any of its contents by fire or other casualty or against liability for damage to property or injury to persons in or about the Building or any part thereof.

1.2 Tenant shall not, and shall not direct, suffer or permit any of its agents, contractors, employees, licensees or invitees (collectively, the “Tenant Entities”) to at any time handle, use, manufacture, store or dispose of in or about the Premises or the Building any (collectively “Hazardous Materials”) flammables, explosives, radioactive materials, hazardous wastes or materials, toxic wastes or materials, or other similar substances, petroleum products or derivatives or any substance subject to regulation by or under any federal, state and local laws and ordinances relating to the protection of the environment or the keeping, use or disposition of environmentally hazardous materials, substances, or wastes, presently in effect or hereafter adopted, all amendments to any of them, and all rules and regulations issued pursuant to any of such laws or ordinances (collectively “Environmental Laws”), nor shall Tenant suffer or permit any Hazardous Materials to be used in any manner not fully in compliance with all Environmental Laws, in the Premises or the Building and appurtenant land or allow the environment to become contaminated with any Hazardous Materials. Notwithstanding the foregoing, Tenant may handle, store, use or dispose of products containing small quantities of Hazardous Materials (such as aerosol cans containing insecticides, toner for copiers, paints, paint remover and the like) to the extent customary and necessary for the use of the Premises for general office purposes; provided that Tenant shall always handle, store, use, and dispose of any such Hazardous Materials in a safe and lawful manner and never allow such Hazardous Materials to contaminate the Premises, Building and appurtenant land or the environment. Tenant shall protect, defend, indemnify and hold each and all of the Landlord Entities (as defined in Article 30) harmless from and against any and all loss, claims, liability or costs (including court costs and attorney’s fees) incurred by reason of any actual or asserted failure of Tenant to fully comply with all applicable Environmental Laws, or the presence, handling, use or disposition in or from the Premises of any Hazardous Materials by Tenant or any Tenant Entity (even though permissible under all applicable Environmental Laws or the provisions of this Lease), or by reason of any actual or asserted failure of Tenant to keep, observe, or perform any provision of this Section 1.2.

1.3 The Tenant shall have, as appurtenant to the Premises, rights to use in common with others entitled thereto:

1.3.1 the common facilities included in the Building or the Lot, including common walkways, driveways, lobbies, hallways, ramps, stairways and elevators;

1.3.2 subject to Article 39, the parking facility (including the visitor’s parking area and parking spaces reserved for the disabled), at locations which may from time to time be designated by Landlord. Use of the parking facility shall be subject to the right of the Landlord to restrict parking during snowplowing operations, and during repair, maintenance and restriping work affecting the parking area;

1.3.3 the pipes, ducts, conduits, wires and appurtenant equipment serving the Premises;

1.3.4 if the Premises include less than the entire rentable area of any floor, the common toilets in the central core area of such floor.

Such rights shall always be subject to the Rules and Regulations set forth in Exhibit D as the same may be reasonably amended by the Landlord from time to time, and such other reasonable rules and regulations from time to time established by Landlord by suitable notice, and to the right of Landlord to designate and change from time to time areas and facilities so to be used, provided such designations and changes do not deprive Tenant of the substantive benefits of such areas and facilities.

Not included in the Premises are the ceiling, the floor and all perimeter walls of the space identified in Exhibit A, except the inner surfaces thereof and the perimeter doors and windows. Tenant agrees that Landlord shall have the right to place in the Premises (but in such manner as not unreasonably to interfere with Tenant’s use of the Premises) utility lines, telecommunication lines, shafts, pipes and the like, for the use and benefit of Landlord and other tenants in the Building, and to replace and maintain and repair such lines, pipes and the like, in, over and upon the Premises. Such utility lines, pipes and the like, shall not be deemed part of the Premises under this Lease.

2. TERM.

2.1 The Term of this Lease shall begin on the date (“Commencement Date”) which shall be the later of the Scheduled Commencement Date as shown on the Reference Pages and the date that Landlord shall tender possession of the Premises to Tenant, and shall terminate on the date as shown on the Reference Pages (“Termination Date”), unless sooner terminated by the provisions of this Lease. Landlord shall tender possession of the Premises with all the work, if any, to be performed by Landlord pursuant to Exhibit B to this Lease substantially completed and all base building systems in good working order and condition. Tenant shall deliver a punch list of items not completed within thirty (30) days after Landlord tenders possession of the Premises and Landlord agrees to proceed with due diligence to perform its obligations regarding such items. Tenant shall, at Landlord’s request, execute and deliver a memorandum agreement provided by Landlord in the form of Exhibit C attached hereto, setting forth the actual Commencement Date, Rent Commencement Date, Termination Date and, if necessary, a revised rent schedule. Should Tenant fail to do so within thirty (30) days after Landlord’s request, the information set forth in such memorandum provided by Landlord shall be conclusively presumed to be agreed and correct.

2.2 Tenant agrees that in the event of the inability of Landlord to deliver possession of the Premises on the Scheduled Commencement Date for any reason, Landlord shall not be liable for any damage resulting from such inability, but Tenant shall not be liable for any rent until the time when Landlord can, after notice to Tenant, deliver possession of the Premises to Tenant. No such failure to give possession on the Scheduled Commencement Date shall affect the other obligations of Tenant under this Lease, except that if Landlord is unable to deliver possession of the Premises within sixty (60) days after the Scheduled Commencement Date (other than as a result of strikes, shortages of materials, or similar matters beyond the reasonable control of Landlord and Tenant is notified by Landlord in writing as to such delay), Tenant shall have the option to terminate this Lease unless said delay is as a result of: (a) Tenant’s failure to agree to plans and specifications and/or construction cost estimates or bids; (b) Tenant’s request for materials, finishes or installations other than Landlord’s standard except those, if any, that Landlord shall have expressly agreed to furnish without extension of time agreed by Landlord; (c) Tenant’s change in any plans or specifications; or, (d) performance or completion by a party employed by Tenant (each of the foregoing, a “Tenant Delay”). If any delay is the result of a Tenant Delay, the Commencement Date and the payment of rent under this Lease shall be accelerated by the number of days of such Tenant Delay.

2.3 In the event Landlord permits Tenant, or any agent, employee or contractor of Tenant, to enter, use or occupy the Premises prior to the Commencement Date, such entry, use or occupancy shall be subject to all the provisions of this Lease other than the payment of rent, including, without limitation, Tenant’s compliance with the insurance requirements of Article 11. Said early possession shall not advance the Termination Date. After full execution and delivery of this Lease, and provided that Tenant shall have delivered to Landlord the first month’s

rent required under Section 3.1, insurance certificates required under Section 11.2 and evidence of authority required under Article 31, then, but subject to Section 2.4, Landlord shall permit Tenant to have access to the Premises in order to install its furniture, fixtures, equipment, cabling and wiring, construct tenant improvements and commence operations. The date on which Tenant is afforded access to the Premises is referred to as the “Early Access Date.” Tenant shall be responsible for utilities consumed in the Premises from and after the Early Access Date, but shall not otherwise be responsible for the payment of rent until the Commencement Date.

2.4 Notwithstanding anything in this Lease to the contrary, but without limiting the provisions of Section 2.2 above, this Lease and Landlord’s obligations hereunder are contingent upon (i) Landlord successfully negotiating a termination agreement, on terms and conditions acceptable to Landlord in its sole and absolute discretion, with the current occupant of the Premises (Monster), and (ii) Landlord obtaining undisputed possession of the Premises pursuant to such termination agreement. If Landlord at any time determines that it will be unable to satisfy the foregoing conditions, Landlord shall promptly terminate this Lease by written notice to Tenant, whereupon this Lease shall be null and void, any security deposited by Tenant shall be returned to Tenant and neither party shall have any further obligation to the other.

2.5 Assuming that the condition of the previous paragraph is satisfied, Tenant will take possession of the Premises with Monster’s furniture still in place. Tenant will dismantle Monster’s furniture while preserving the existing wiring in place. Tenant shall take reasonable efforts to preserve Monster’s furniture and avoid damage. Upon notice to Landlord, Landlord shall cause Monster to remove its furniture.

3. RENT.

3.1 Tenant agrees to pay to Landlord the Annual Rent in effect from time to time by paying the Monthly Installment of Rent then in effect on or before the first day of each full calendar month during the Term, except that the first full month’s rent shall be paid upon the execution of this Lease. The Monthly Installment of Rent in effect at any time shall be one-twelfth (1/12) of the Annual Rent in effect at such time. Rent for any period during the Term which is less than a full month shall be a prorated portion of the Monthly Installment of Rent based upon the number of days in such month. Said rent shall be paid to Landlord, without deduction or offset and without notice or demand, at the Rent Payment Address, as set forth on the Reference Pages, or to such other person or at such other place as Landlord may from time to time designate in writing. If an Event of Default occurs, Landlord may require by notice to Tenant that all subsequent rent payments be made by an automatic payment from Tenant’s bank account to Landlord’s account, without cost to Landlord. Tenant must implement such automatic payment system prior to the next scheduled rent payment or within ten (10) days after Landlord’s notice, whichever is later. Unless specified in this Lease to the contrary, all amounts and sums payable by Tenant to Landlord pursuant to this Lease shall be deemed additional rent.

3.2 Tenant recognizes that late payment of any rent or other sum due under this Lease will result in administrative expense to Landlord, the extent of which additional expense is extremely difficult and economically impractical to ascertain. Tenant therefore agrees that if rent or any other sum is not paid when due and payable pursuant to this Lease, a late charge shall be imposed in an amount equal to the greater of: (a) Fifty Dollars ($50.00), or (b) five percent (5%) of the unpaid rent or other payment. The amount of the late charge to be paid by Tenant shall be reassessed and added to Tenant’s obligation for each successive month until paid. The provisions of this Section 3.13.2 in no way relieve Tenant of the obligation to pay rent or other payments on or before the date on which they are due, nor do the terms of this Section 3.13.2 in any way affect Landlord’s remedies pursuant to Article 19 of this Lease in the event said rent or other payment is unpaid after date due.

3.3 Tenant hereby acknowledges and agrees that the obligations of Tenant hereunder shall be separate and independent covenants and agreements, that rent shall continue to be payable in all events and that the obligations of Tenant hereunder shall continue unaffected, unless the requirement to pay or perform the same shall have been terminated pursuant to an express provision of this Lease. Landlord and Tenant each acknowledges and agrees that the independent nature of the obligations of Tenant hereunder represents fair, reasonable, and accepted commercial practice with respect to the type of property subject to this Lease. Such acknowledgements by Tenant are a material inducement to landlord entering into this Lease.

4. RENT ADJUSTMENTS.

4.1 For the purpose of this Article 4, the following terms are defined as follows:

4.1.1 Lease Year: Each fiscal year (as determined by Landlord from time to time) falling partly or wholly within the Term.

4.1.2 Expenses: All costs of operation, maintenance, repair, replacement and management of the Building (including the amount of any credits which Landlord may grant to particular tenants of the Building in lieu of providing any standard services or paying any standard costs described in this Section 4.1.2 for similar tenants), as determined in accordance with generally accepted accounting principles, including the following costs by way of illustration, but not limitation: water and sewer charges; utility costs, including, but not limited to, the cost of heat, light, power, steam, gas; waste disposal; the cost of janitorial services; the cost of security and alarm services (including any central station signaling system); costs of cleaning, repairing, replacing and maintaining the common areas, including parking and landscaping, window cleaning costs; labor costs; costs and expenses of managing the Building including management and/or administrative fees; air conditioning maintenance costs; elevator maintenance fees and supplies; material costs; equipment costs including the cost of maintenance, repair and service agreements and rental and leasing costs; purchase costs of equipment (capital costs to be amortized over the useful life of the item in question as reasonably determined by Landlord); current rental and leasing costs of items which would be capital items if purchased; tool costs; licenses, permits and inspection fees; an allocable portion of wages and salaries for employees to the extent dedicated to the management of the Building; an allocable portion of employee benefits and payroll taxes for employees to the extent dedicated to the management of the Building; accounting and legal fees; any sales, use or service taxes incurred in connection therewith. Expenses shall also include the amounts paid to subsidize the operation of any cafeterias or restaurants in Riverfront Office Park, however, if an amount for this item is included in the Base Year (Expenses) amount and subsequently during the Term the subsidy is reduced to below the amount included in the Base Year (Expenses) amount, the Base Year (Expenses) amount will be reduced accordingly. In addition, Landlord shall be entitled to recover, as additional rent, Tenant’s Proportionate Share of: (i) an allocable portion of the cost of capital improvement items which are reasonably calculated to reduce operating expenses; (ii) the cost of fire sprinklers and suppression systems and other life safety systems; and (iii) other capital expenses which are required under any governmental laws, regulations or ordinances which were not applicable to the Building at the time it was constructed; but the costs described in this sentence shall be amortized over the reasonable life of such expenditures in accordance with such reasonable life and amortization schedules as shall be determined by Landlord in accordance with generally accepted accounting principles, with interest on the unamortized amount at one percent (1%) in excess of the Wall Street Journal prime lending rate announced from time to time. Expenses shall not include Taxes, Insurance Costs, depreciation or amortization of the Building or equipment in the Building except as provided herein, loan principal payments, costs of alterations of tenants’ premises, leasing commissions, interest expenses on long-term borrowings or advertising costs.

4.1.3 Taxes: Real estate taxes and any other taxes, charges and assessments which are levied with respect to the Building or the land appurtenant to the Building, or with respect to any improvements, fixtures and equipment or other property of Landlord, real or personal, located in the Building and used in connection with the operation of the Building and said land; and all fees, expenses and costs incurred by Landlord in investigating, protesting, contesting or in any way seeking to reduce or avoid increase in any assessments, levies or the tax rate pertaining to any Taxes to be paid by Landlord in any Lease Year. Taxes shall not include any corporate franchise, or estate, inheritance or net income tax, or tax imposed upon any transfer by Landlord of its interest in this Lease or the Building or any taxes to be paid by Tenant pursuant to Article 28.

4.1.4 Insurance Costs: Any and all insurance charges of or relating to all insurance policies and endorsements deemed by Landlord to be reasonably necessary or desirable and relating in any manner to the protection, preservation, or operation of the Building or any part thereof.

4.2 If in any Lease Year, (i) Expenses paid or incurred shall exceed Expenses paid or incurred in the Base Year (Expenses) and/or (ii) Taxes paid or incurred by Landlord in any Lease Year shall exceed the amount of such Taxes which became due and payable in the Base Year (Taxes), and/or (iii) Insurance Costs paid or incurred by Landlord in any Lease Year shall exceed the amount of such Insurance Costs which became due and payable in the Base Year (Insurance), Tenant shall pay as additional rent for such Lease Year Tenant’s Proportionate Share of each such excess amount.

4.3 The annual determination of Expenses and Insurance Costs shall be made by Landlord, and shall be binding upon Landlord and Tenant, subject to the provisions of this Section 4.3. During the Term, Tenant may review, at Tenant’s sole cost and expense, the books and records supporting such determination in an office of Landlord, or Landlord’s agent, during normal business hours, upon giving Landlord five (5) days advance written notice within sixty (60) days after receipt of such determination, but in no event more often than once in any one (1) year period, subject to execution of a confidentiality agreement acceptable to Landlord, and provided that if Tenant utilizes an independent accountant or a professional real estate services firm to perform such review it shall be one of national standing which is reasonably acceptable to Landlord, is not compensated on a contingency basis and is also subject to such confidentiality agreement. If Tenant fails to object to Landlord’s determination of Expenses and Insurance Costs within ninety (90) days after receipt, or if any such objection fails to state with specificity the reason for the objection, Tenant shall be deemed to have approved such determination and shall have no further right to object to or contest such determination. In the event that during all or any portion of any Lease Year or Base Year, the Building is not fully rented and occupied Landlord shall make an appropriate adjustment in occupancy-related Expenses for such year for the purpose of avoiding distortion of the amount of such Expenses to be attributed to Tenant by reason of variation in total occupancy of the Building, by employing consistent and sound accounting and management principles to determine Expenses that would have been paid or incurred by Landlord had the Building been one hundred percent (100%) rented and occupied, and the amount so determined shall be deemed to have been Expenses for such Lease Year.

4.4 Prior to the actual determination thereof for a Lease Year, Landlord may from time to time estimate Tenant’s liability for Expenses, Insurance Costs and/or Taxes under Section 4.1, Article 6 and Article 28 for the Lease Year or portion thereof. Landlord will give Tenant written notification of the amount of such estimate and Tenant agrees that it will pay, by increase of its Monthly Installments of Rent due in such Lease Year, additional rent in the amount of such estimate. Any such increased rate of Monthly Installments of Rent pursuant to this Section 4.4 shall remain in effect until further written notification to Tenant pursuant hereto.

4.5 When the above mentioned actual determination of Tenant’s liability for Expenses, Insurance Costs and/or Taxes is made for any Lease Year and when Tenant is so notified in writing, then:

4.5.1 If the total additional rent Tenant actually paid pursuant to Section 4.3 on account of Expenses, Insurance Costs and/or Taxes for the Lease Year is less than Tenant’s liability for Expenses, Insurance Costs and/or Taxes, then Tenant shall pay such deficiency to Landlord as additional rent in one lump sum within thirty (30) days of receipt of Landlord’s ▇▇▇▇ therefor; and

4.5.2 If the total additional rent Tenant actually paid pursuant to Section 4.3 on account of Expenses, Insurance Costs and/or Taxes for the Lease Year is more than Tenant’s liability for Expenses, Insurance Costs and/or Taxes, then Landlord shall credit the difference against the then next due payments to be made by Tenant under this Article 4, or, if the Lease has terminated, refund the difference in cash. Tenant shall not be entitled to a credit by reason of actual Expenses and/or Taxes and/or Insurance Costs in any Lease Year being less than Expenses and/or Taxes and/or Insurance Costs in the Base Year (Expenses and/or Taxes and/or Insurance).

4.6 If the Commencement Date is other than January 1 or if the Termination Date is other than December 31, Tenant’s liability for Expenses, Insurance Costs and Taxes for the Lease Year in which said Date occurs shall be prorated based upon a three hundred sixty-five (365) day year.

5. SECURITY DEPOSIT.

5.1 Tenant shall deposit the Security Deposit with Landlord upon the execution of this Lease. Said sum shall be held by Landlord as security for the faithful performance by Tenant of all the terms, covenants and conditions of this Lease to be kept and performed by Tenant and not as an advance rental deposit or as a measure of Landlord’s damage in case of Tenant’s default. If Tenant defaults with respect to any provision of this Lease, Landlord may use any part of the Security Deposit for the payment of any rent or any other sum in default, or for the payment of any amount which Landlord may spend or become obligated to spend by reason of Tenant’s default, or

to compensate Landlord for any other loss or damage which Landlord may suffer by reason of Tenant’s default. If any portion is so used, Tenant shall within five (5) days after written demand therefor, deposit with Landlord an amount sufficient to restore the Security Deposit to its original amount and Tenant’s failure to do so shall be a material breach of this Lease. Except to such extent, if any, as shall be required by law, Landlord shall not be required to keep the Security Deposit separate from its general funds, and Tenant shall not be entitled to interest on such deposit. If Tenant shall fully and faithfully perform every provision of this Lease to be performed by it, the Security Deposit or any balance thereof shall be returned to Tenant at such time after termination of this Lease when Landlord shall have determined that all of Tenant’s obligations under this Lease have been fulfilled.

5.2 The required Security Deposit shall be in the form of an Irrevocable Standby Letter of Credit in favor of Landlord (the “letter of credit”) in the amount set forth on the Reference Pages. Under any circumstance under which Landlord is entitled the use of all or a part of the Security Deposit, then, Landlord, in addition to all other rights and remedies provided under the Lease, shall have the right to draw down all or a portion of the full balance of the letter of credit and retain the proceeds. The following terms and conditions shall govern the letter of credit:

5.2.1 Upon expiration of the Term, the letter of credit shall be returned to Tenant when Tenant is entitled to return of its Security Deposit.

5.2.2 The letter of credit shall be in favor of Landlord, shall be issued by a commercial bank reasonably acceptable to Landlord, shall comply with all of the terms and conditions of this Section 5.2 and shall otherwise be in form reasonably acceptable to Landlord. Without limiting the generality of the foregoing, (i) the letter of credit must provide for all notices to the beneficiary to be sent simultaneously to up to two (2) addressees specified in the letter of credit, and (ii) there shall be no requirement of signature guaranty for draws, assignments or other documentary action to be taken by the beneficiary. If, at any time while the letter of credit is outstanding, (i) the issuing bank is declared insolvent or taken into receivership by the Federal Deposit Insurance Corporation or any other governmental agency, or is closed for any reason, or (ii) Landlord reasonably believes that the issuing bank may be or become insolvent or otherwise unable to meet its obligations, then, not later than thirty (30) days after written notice from Landlord, Tenant shall cause the existing letter of credit to be replaced by a new letter of credit issued by another commercial bank reasonably acceptable to Landlord, with such new letter of credit to comply with all of the terms and conditions of this Section 5.2. If Tenant fails to deliver an acceptable replacement letter of credit within such 30 day period, Landlord shall have the right to present the existing letter of credit to the issuing bank for payment, and the entire sum so obtained shall be paid to Landlord, to be held by Landlord until Tenant would otherwise be entitled to the return of the letter of credit, and to be retained by Landlord if a default occurs.

5.2.3 The initial letter of credit shall have an expiration date not earlier than fifteen (15) months after the Commencement Date. A draft of the form of letter of credit must be submitted to Landlord for its approval prior to issuance.

5.2.4 The letter of credit or any replacement letter of credit shall be irrevocable for the term thereof and shall automatically renew on a year to year basis until a period ending not earlier than three (3) months after the Termination Date (“End Date”) without any action whatsoever on the part of Landlord; provided that the issuing bank shall have the right not to renew the letter of credit by giving written notice to Landlord not less than sixty (60) days prior to the expiration of the then current term of the letter of credit that it does not intend to renew the letter of credit. Tenant understands that the election by the issuing bank not to renew the letter of credit shall not, in any event, diminish the obligation of Tenant to maintain such an irrevocable letter of credit in favor of Landlord through such date.

5.2.5 Landlord, or its then managing agent, shall have the right from time to time to make one or more draws on the letter of credit at any time that Landlord has the right to use all or a part of the Security Deposit pursuant to Article 5 of this Lease, and the proceeds may be applied as permitted under said Article 5. The letter of credit must state that it can be presented for payment at the office of the issuer or an approved correspondent in the metropolitan area in which the Building is located. Funds may be drawn down on the letter of credit upon presentation to the issuing or corresponding bank of Landlord’s (or Landlord’s then managing agent’s) certificate stating as follows:

“Beneficiary is entitled to draw on this credit pursuant to that certain Lease dated for reference March 9, ▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ REIT II CORP. PPP, a Maryland corporation, as Landlord and ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation, as Tenant, as amended from time to time.”

It is understood that if Landlord or its managing agent be a corporation, partnership or other entity, then such statement shall be signed by an officer (if a corporation), a general partner (if a partnership), or any authorized party (if another entity).

5.2.6 Tenant acknowledges and agrees (and the letter of credit shall so state) that the letter of credit shall be honored by the issuing bank without inquiry as to the truth of the statements set forth in such draw request and regardless of whether the Tenant disputes the content of such statement.

5.2.7 In the event of a transfer of Landlord’s interest in the Premises, Landlord shall have the right to transfer the letter of credit to the transferee and Tenant shall take whatever action and pay any bank fees necessary to effectuate such transfer and thereupon the Landlord shall, without any further agreement between the parties, be released by Tenant from all liability therefor, and it is agreed that the provisions hereof shall apply to every transfer or assignment of said letter of credit to a new landlord.

5.2.8 Without limiting the generality of the foregoing, if the letter of credit expires earlier than the End Date, or the issuing bank notifies Landlord that it will not renew the letter of credit, Landlord shall accept a renewal thereof or substitute letter credit (such renewal or substitute letter of credit to be in effect not later than thirty (30) days prior to the expiration of the expiring letter of credit), irrevocable and automatically renewable as above provided to the End Date upon the same terms as the expiring letter of credit or upon such other terms as may be acceptable to Landlord. However, if (i) the letter of credit is not timely renewed, or (ii) a substitute letter of credit, complying with all of the terms and conditions of this Section is not timely received, then Landlord may present the expiring letter of credit to the issuing bank, and the entire sum so obtained shall be paid to Landlord, to be held by Landlord in accordance with Article 5 of the Lease. Notwithstanding the foregoing, Landlord shall be entitled to receive from Tenant a fee in an amount not to exceed $500.00 for attorneys’ fees incurred in connection with the review of any proposed substitute letter of credit pursuant to this subparagraph.

6. ALTERATIONS.

6.1 Except for those, if any, specifically provided for in Exhibit B to this Lease, Tenant shall not make or suffer to be made any alterations, additions, or improvements, including, but not limited to, the attachment of any fixtures or equipment in, on, or to the Premises or any part thereof or the making of any improvements as required by Article 7, without the prior written consent of Landlord. When applying for such consent, Tenant shall, if requested by Landlord, furnish complete plans and specifications for such alterations, additions and improvements. Landlord’s consent shall not be required (but notice to Landlord shall be required) with respect to alterations which (i) are not structural in nature, (ii) are not visible from the exterior of the Building, (iii) do not affect or require modification of the Building’s electrical, mechanical, plumbing, HVAC or other systems, and (iv) in aggregate do not cost more than $5.00 per rentable square foot of that portion of the Premises affected by the alterations in question.

6.2 In the event Landlord consents to the making of any such alteration, addition or improvement by Tenant, or to the extent that Landlord’s consent is not required for same, the same shall be made by using either Landlord’s contractor or a contractor reasonably approved by Landlord, in either event at Tenant’s sole cost and expense. If Tenant shall employ any contractor other than Landlord’s contractor and such other contractor or any subcontractor of such other contractor shall employ any non-union labor or supplier, Tenant shall be responsible for and hold Landlord harmless from any and all delays, damages and extra costs suffered by Landlord as a result of any dispute with any labor unions concerning the wage, hours, terms or conditions of the employment of any such labor. In any event Landlord may charge Tenant a construction management fee not to exceed three percent (3%) of the cost of such work if Landlord manages such construction, otherwise seventy-five one hundredths percent (.75%), to cover its overhead as it relates to such proposed work, plus third-party costs actually incurred by Landlord in connection with the proposed work and the design thereof, with all such amounts being due thirty (30) days after Landlord’s demand.

6.3 All alterations, additions or improvements proposed by Tenant shall be constructed in accordance with all government laws, ordinances, rules and regulations, using Building standard materials where applicable, and Tenant shall, prior to construction, provide the additional insurance required under Article 11 in such case, and also all such assurances to Landlord as Landlord shall reasonably require to assure payment of the costs thereof, including but not limited to, notices of non-responsibility, waivers of lien, surety company performance bonds and funded construction escrows and to protect Landlord and the Building and appurtenant land against any loss from any mechanic’s, materialmen’s or other liens. Tenant shall pay in addition to any sums due pursuant to Article 4, any increase in real estate taxes attributable to any such alteration, addition or improvement for so long, during the Term, as such increase is ascertainable; at Landlord’s election said sums shall be paid in the same way as sums due under Article 4.

7. REPAIR.

7.1 Landlord shall have no obligation to alter, remodel, improve, repair, decorate or paint the Premises, except as specified in Exhibit B if attached to this Lease and except that Landlord shall repair and maintain the structural portions of the Building and its systems, including, but not limited to, the basic plumbing, air conditioning, heating and electrical systems serving the Building and/or Premises. Landlord hereby covenants to Tenant that as of the Commencement Date the base building and its systems will be in good working order and condition. It is hereby understood and agreed that no representations respecting the condition of the Premises or the Building have been made by Landlord to Tenant, except as specifically set forth in this Lease.

7.2 Tenant shall, at all times during the Term, keep the Premises in good condition and repair excepting damage by fire, or other casualty, and in compliance with all applicable governmental laws, ordinances and regulations, promptly complying with all governmental orders and directives for the correction, prevention and abatement of any violations or nuisances in or upon, or connected with, the Premises, all at Tenant’s sole expense.

7.3 Landlord shall not be liable for any failure to make any repairs or to perform any maintenance unless such failure shall persist for an unreasonable time after written notice of the need of such repairs or maintenance is given to Landlord by Tenant.

7.4 Except as provided in Article 22, there shall be no abatement of rent and no liability of Landlord by reason of any injury to or interference with Tenant’s business arising from the making of any repairs, alterations or improvements in or to any portion of the Building or the Premises or to fixtures, appurtenances and equipment in the Building. Except to the extent, if any, prohibited by law, Tenant waives the right to make repairs at Landlord’s expense under any law, statute or ordinance now or hereafter in effect.

8. LIENS. Tenant shall keep the Premises, the Building and appurtenant land and Tenant’s leasehold interest in the Premises free from any liens arising out of any services, work or materials performed, furnished, or contracted for by Tenant, or obligations incurred by Tenant. In the event that Tenant fails, within ten (10) business days following the imposition of any such lien, to either cause the same to be released of record or provide Landlord with insurance against the same issued by a major title insurance company or such other protection against the same as Landlord shall accept (such failure to constitute an Event of Default), Landlord shall have the right to cause the same to be released by such means as it shall deem proper, including payment of the claim giving rise to such lien; provided, if Landlord shall cause such lien to be released, such failure by Tenant shall not be deemed an Event of Default but Tenant shall be required to reimburse Landlord all such sums paid by Landlord and all expenses incurred by it in connection therewith which shall be payable to it by Tenant within ten (10) business days of Landlord’s demand.

9. ASSIGNMENT AND SUBLETTING.

9.1 Except as otherwise provided in Section 9.8 below, Tenant shall not have the right to assign or pledge this Lease or to sublet the whole or any part of the Premises whether voluntarily or by operation of law, or permit the use or occupancy of the Premises by anyone other than Tenant and employees of its affiliates companies, and shall not make, suffer or permit such assignment, subleasing or occupancy without the prior written consent of Landlord, such consent not to be unreasonably withheld, conditioned or delayed, and said restrictions shall be binding upon any and all assignees of the Lease and subtenants of the Premises. In the event Tenant desires to

sublet, or permit such occupancy of, the Premises, or any portion thereof, or assign this Lease, Tenant shall give written notice thereof to Landlord at least twenty (20) days but no more than one hundred twenty (120) days prior to the proposed commencement date of such subletting or assignment, which notice shall set forth the name of the proposed subtenant or assignee, the relevant terms of any sublease or assignment and copies of financial reports and other relevant financial information of the proposed subtenant or assignee.

9.2 Notwithstanding any assignment or subletting, permitted or otherwise, Tenant shall at all times remain directly, primarily and fully responsible and liable for the payment of the rent specified in this Lease and for compliance with all of its other obligations under the terms, provisions and covenants of this Lease. Upon the occurrence of an Event of Default, if the Premises or any part of them are then assigned or sublet, Landlord, in addition to any other remedies provided in this Lease or provided by law, may, at its option, collect directly from such assignee or subtenant all rents due and becoming due to Tenant under such assignment or sublease and apply such rent against any sums due to Landlord from Tenant under this Lease, and no such collection shall be construed to constitute a novation or release of Tenant from the further performance of Tenant’s obligations under this Lease.

9.3 In addition to Landlord’s right to approve of any subtenant or assignee, Landlord shall have the option, in its sole discretion, in the event of any proposed subletting or assignment, to terminate this Lease, or in the case of a proposed subletting of less than the entire Premises, to recapture the portion of the Premises to be sublet, as of the date the subletting or assignment is to be effective. The option shall be exercised, if at all, by Landlord giving Tenant written notice given by Landlord to Tenant within fifteen (15) days following Landlord’s receipt of Tenant’s written notice as required above. However, if Tenant notifies Landlord, within five (5) days after receipt of Landlord’s termination notice, that Tenant is rescinding its proposed assignment or sublease, the termination notice shall be void and the Lease shall continue in full force and effect. If this Lease shall be terminated with respect to the entire Premises pursuant to this Section, the Term of this Lease shall end on the date stated in Tenant’s notice as the effective date of the sublease or assignment as if that date had been originally fixed in this Lease for the expiration of the Term. If Landlord recaptures under this Section only a portion of the Premises, the rent to be paid from time to time during the unexpired Term shall ▇▇▇▇▇ proportionately based on the proportion by which the approximate square footage of the remaining portion of the Premises shall be less than that of the Premises as of the date immediately prior to such recapture. Tenant shall, at Tenant’s own cost and expense, discharge in full any outstanding commission obligation which may be due and owing to any broker engaged by Tenant with respect to any proposed assignment or subletting, whether or not the Premises are recaptured pursuant to this Section 9.3 and rented by Landlord to the proposed tenant or any other tenant; provided that Tenant shall only be responsible for commissions due its broker and not any broker retained by Landlord or Landlord’s proposed tenant.

9.4 In the event that Tenant sells, sublets, assigns or transfers this Lease, Tenant shall pay to Landlord as additional rent an amount equal to fifty percent (50%) of any Increased Rent (as defined below), less the Costs Component (as defined below), when and as such Increased Rent is received by Tenant. As used in this Section, “Increased Rent” shall mean the excess of (i) all rent and other consideration which Tenant is entitled to receive by reason of any sale, sublease, assignment or other transfer of this Lease, over (ii) the rent otherwise payable by Tenant under this Lease at such time. For purposes of the foregoing, any consideration received by Tenant in form other than cash shall be valued at its fair market value as determined by Landlord in good faith. The “Costs Component” is that amount which, if paid monthly, would fully amortize on a straight-line basis, over the entire period for which Tenant is to receive Increased Rent, the reasonable costs incurred by Tenant for leasing commissions and tenant improvements in connection with such sublease, assignment or other transfer.

9.5 Notwithstanding any other provision hereof (other than Section 9.8), it shall be considered reasonable for Landlord to withhold its consent to any assignment of this Lease or sublease of any portion of the Premises if at the time of either Tenant’s notice of the proposed assignment or sublease or the proposed commencement date thereof, there shall exist any uncured default of Tenant or matter which will become a default of Tenant with passage of time unless cured, or if the proposed assignee or sublessee is an entity: (a) with which Landlord is already in negotiation (which shall mean Landlord and the proposed assignee or sublessee have been actively exchanging proposals, counter offers, etc., it being agreed that the submittal of proposals or offers to the proposed assignee or sublessee by Landlord without interest or active negotiations by the proposed assignee or sublessee shall not constitute negotiations hereunder); (b) is already an occupant of the Park unless Landlord is unable to provide the amount of space required by such occupant; (c) is a governmental agency; (d) is, in Landlord’s reasonable judgment, incompatible with the character of occupancy of the Building;; or (f) would subject the

Premises to a use which would: (i) involve increased personnel or wear upon the Building; (ii) violate any exclusive right granted to another tenant of the Building; (iii) require any addition to or modification of the Premises or the Building in order to comply with building code or other governmental requirements; or, (iv) involve a violation of Section 1.2. Tenant expressly agrees that for the purposes of any statutory or other requirement of reasonableness on the part of Landlord, Landlord’s refusal to consent to any assignment or sublease for any of the reasons described in this Section 9.5, shall be conclusively deemed to be reasonable.

9.6 Upon any request to assign or sublet, Tenant will pay to Landlord the Assignment/Subletting Fee plus, on demand, a sum equal to all of Landlord’s reasonable out of pocket costs, including reasonable attorney’s fees, incurred in investigating and considering any proposed or purported assignment or pledge of this Lease or sublease of any of the Premises, regardless of whether Landlord shall consent to, refuse consent, or determine that Landlord’s consent is not required for, such assignment, pledge or sublease. Any purported sale, assignment, mortgage, transfer of this Lease or subletting which does not comply with the provisions of this Article 9 shall be void.

9.7 If Tenant is a corporation, limited liability company, partnership or trust, any transfer or transfers of or change or changes within any twelve (12) month period in the number of the outstanding voting shares of the corporation or limited liability company, the general partnership interests in the partnership or the identity of the persons or entities controlling the activities of such partnership or trust resulting in the persons or entities owning or controlling a majority of such shares, partnership interests or activities of such partnership or trust at the beginning of such period no longer having such ownership or control shall be regarded as equivalent to an assignment of this Lease to the persons or entities acquiring such ownership or control and shall be subject to all the provisions of this Article 9 to the same extent and for all intents and purposes as though such an assignment.

9.8 Notwithstanding the foregoing provisions of this Article to the contrary, Tenant shall be permitted to freely assign this Lease, or freely sublet all or a portion of the Premises, to an Affiliate of Tenant without the prior consent of Landlord, if all of the following conditions are first satisfied:

9.8.1 Tenant shall not then be in default under this Lease;

9.8.2 a fully executed copy of such assignment or sublease, the assumption of this Lease by the assignee or acceptance of the sublease by the sublessee, and such other information regarding the assignment or sublease as Landlord may reasonably request, shall have been delivered to Landlord;

9.8.3 the Premises shall continue to be operated solely for the use specified in the Reference Page or other use acceptable to Landlord in its sole discretion;

9.8.4 any guarantor of this Lease reaffirms that its Guaranty remains in full force and effect; and

9.8.5 Tenant shall pay all reasonable out of pocket costs reasonably incurred by Landlord in connection with such assignment or subletting, including without limitation attorneys’ fees.

Tenant acknowledges (and, at Landlord’s request, at the time of such assignment or subletting shall confirm) that in each instance Tenant shall remain liable for performance of the terms and conditions of the Lease despite such assignment or subletting. As used herein the term “Affiliate” shall mean an entity which (i) directly or indirectly controls Tenant or (ii) is under the direct or indirect control of Tenant or (iii) is under common direct or indirect control with Tenant, (iv) is the successor in interest to Tenant by way of merger or consolidation, or by sale of all of the stock of Tenant or of all of the assets of Tenant, so long as the tangible net worth of the surviving or successor entity following such transaction is at least as much as the tangible net worth of Tenant immediately preceding the transaction or at the Commencement Date, whichever is higher. Control shall mean ownership of fifty-one percent (51%) or more of the voting securities or rights of the controlled entity.

10. INDEMNIFICATION. None of the Landlord Entities shall be liable and Tenant hereby waives all claims against them for any damage to any property or any injury to any person in or about the Premises or the Building by

or from any cause whatsoever (including without limiting the foregoing, rain or water leakage of any character from the roof, windows, walls, basement, pipes, plumbing works or appliances, the Building not being in good condition or repair, gas, fire, oil, electricity or theft), except to the extent caused by or arising from the gross negligence or willful misconduct of Landlord or its agents, employees or contractors. Tenant shall protect, indemnify and hold the Landlord Entities harmless from and against any and all loss, claims, liability or costs (including court costs and attorney’s fees) incurred by reason of (a) any damage to any property (including but not limited to property of any Landlord Entity) or any injury (including but not limited to death) to any person occurring in, on or about the Premises or the Building to the extent that such injury or damage shall be caused by or arise from any actual or alleged act, neglect, fault, or omission by or of Tenant or any Tenant Entity to meet any standards imposed by any duty with respect to the injury or damage; (b) the conduct or management of any work or thing whatsoever done by the Tenant in or about the Premises or from transactions of the Tenant concerning the Premises; (c) Tenant’s failure to comply with any and all governmental laws, ordinances and regulations applicable to the condition or use of the Premises or its occupancy; or (d) any breach or default on the part of Tenant in the performance of any covenant or agreement on the part of the Tenant to be performed pursuant to this Lease; except, in each of the foregoing, to the extent caused by or arising from the gross negligence or willful misconduct of Landlord or its agents, employees or contractors. The provisions of this Article shall survive the termination of this Lease with respect to any claims or liability accruing prior to such termination.

11. INSURANCE.

11.1 Tenant shall keep in force throughout the Term: (a) a Commercial General Liability insurance policy or policies to protect the Landlord Entities against any liability to the public or to any invitee of Tenant or a Landlord Entity incidental to the use of or resulting from any accident occurring in or upon the Premises with a limit of not less than $1,000,000.00 per occurrence and not less than $2,000,000.00 in the annual aggregate, or such larger amount as Landlord may prudently require from time to time, covering bodily injury and property damage liability and $1,000,000 products/completed operations aggregate; (b) Business Auto Liability covering owned, non-owned and hired vehicles with a limit of not less than $1,000,000 per accident; (c) Worker’s Compensation Insurance with limits as required by statute and Employers Liability with limits of $500,000 each accident, $500,000 disease policy limit, $500,000 disease – each employee; (d) All Risk or Special Form coverage protecting Tenant against loss of or damage to Tenant’s alterations, additions, improvements, carpeting, floor coverings, panelings, decorations, fixtures, inventory and other business personal property situated in or about the Premises to the full replacement value of the property so insured; and, (e) Business Interruption Insurance with limit of liability representing loss of at least approximately six (6) months of income.

11.2 The aforesaid policies shall (a) be provided at Tenant’s expense; (b) name the Landlord Entities as additional insureds (General Liability) and loss payee (Property – Special Form); (c) be issued by an insurance company with a minimum Best’s rating of “A-:VII” during the Term; and (d) provide that said insurance shall not be canceled unless thirty (30) days prior written notice (ten days for non-payment of premium) shall have been given to Landlord; a certificate of Liability insurance on ▇▇▇▇▇ Form 25 and a certificate of Property insurance on ▇▇▇▇▇ Form 27 shall be delivered to Landlord by Tenant upon the Commencement Date and upon renewal of said insurance.

11.3 Whenever Tenant shall undertake any alterations, additions or improvements in, to or about the Premises (“Work”) the aforesaid insurance protection must extend to and include injuries to persons and damage to property arising in connection with such Work, without limitation including liability under any applicable structural work act, and such other insurance as Landlord shall require; and the policies of or certificates evidencing such insurance must be delivered to Landlord prior to the commencement of any such Work.

12. WAIVER OF SUBROGATION. So long as their respective insurers so permit, Tenant and Landlord hereby mutually waive their respective rights of recovery against each other for any loss insured by fire, extended coverage, All Risks or other insurance now or hereafter existing for the benefit of the respective party but only to the extent of the net insurance proceeds payable under such policies. Each party shall obtain any special endorsements required by their insurer to evidence compliance with the aforementioned waiver.

13. SERVICES AND UTILITIES.

13.1 Provided Tenant shall not be in default under this Lease beyond any cure period, and subject to the other provisions of this Lease, Landlord agrees to furnish to the Premises (as to HVAC, during Building Business Hours specified on the Reference Pages on generally recognized business days, but exclusive in any event of Sundays and national and local legal holidays), the following services and utilities consistent with standards for comparable Class A office buildings in the Cambridge, MA area, in quantities sufficient for the reasonably anticipated demand for such services and subject to the rules and regulations of the Building prescribed from time to time: (a) water suitable for normal office use of the Premises; (b) heat and air conditioning required in Landlord’s judgment for the use and occupation of the Premises during Building Business Hours; (c) cleaning and janitorial service (provided only on generally recognized business days); (d) elevator service by nonattended automatic elevators, if applicable; and, (e) equipment to bring to the Premises electricity for lighting, convenience outlets and other normal office use. In the absence of Landlord’s gross negligence or willful misconduct, Landlord shall not be liable for, and Tenant shall not be entitled to, any abatement or reduction of rental by reason of Landlord’s failure to furnish any of the foregoing, unless such failure shall persist for an unreasonable time after written notice of such failure is given to Landlord by Tenant and provided further that Landlord shall not be liable when such failure is caused by accident, breakage, repairs, labor disputes of any character, energy usage restrictions or by any other cause, similar or dissimilar, beyond the reasonable control of Landlord. Landlord shall use commercially reasonable efforts to remedy any interruption in the furnishing of services and utilities as soon as possible.

13.1.1 Allocable Costs – Electricity. Tenant shall pay to Landlord monthly an amount reasonably estimated by Landlord to equal Tenant’s Allocable Electricity Costs for the electrical energy that Tenant requires for operation of the lighting fixtures, appliances and equipment of Tenant in the Premises and the heating and air conditioning equipment of Landlord servicing the Premises. “Tenant’s Allocable Electricity Costs” as used herein is initially estimated to be $2.00 per rsf, and shall be as determined in accordance with Exhibit E attached hereto and made a part hereof. Landlord shall from time to time furnish to Tenant a statement setting forth in reasonable detail the particulars relating to Tenant’s Allocable Electricity Costs for the period to which such a statement relates. In the event the estimated payments made by Tenant for said period shall be less than Tenant’s Allocable Electricity Costs for said period as set forth in said statement, Tenant shall promptly remit to Landlord the difference. In the event the estimated payments made by Tenant for said period exceed Tenant’s Allocable Electricity Costs for said period as set forth in said statement, such excess shall be refunded by Landlord. Landlord shall not be liable in any way to Tenant for any failure or defect in the supply or character of electrical energy furnished to the Premises by reason of any requirement, act or omission of the public utility serving the Building with electricity unless due to the act or omission of Landlord. Tenant’s use of electrical energy in the Premises shall not at any time exceed the capacity of any of the electrical conductors and equipment in or otherwise serving the Premises. In order to insure that such capacity is not exceeded and to avert possible adverse effect upon the Building electrical services, Tenant shall give notice to Landlord and obtain Landlord’s prior written consent whenever Tenant shall connect to the Building electrical distribution system any major fixtures, appliances or equipment. Any additional feeders or risers to supply Tenant’s electrical requirements in addition to those originally installed and all other equipment proper and necessary in connection with such feeders or risers, shall be installed by Landlord upon Tenant’s request, at the sole cost and expense of Tenant, provided that such additional feeders and risers are permissible under applicable laws and insurance regulations and the installation of such feeders or risers will not cause permanent damage or injury to the Building or cause or create a dangerous condition or unreasonably interfere with other tenants of the Building. Tenant agrees that it will not make any significant alteration or material addition to the electrical equipment and/or appliances in the Premises without the prior written consent of Landlord in each instance first obtained, which consent will not be unreasonably withheld or delayed, and will promptly advise Landlord of any alteration or addition to such electrical equipment and/or appliances. Landlord, at Tenant’s expense, shall purchase, install and replace all light fixtures, bulbs, tubes, lamps, lenses, globes, ballasts and switches used in the Premises. Notwithstanding the foregoing, Landlord, at its election, may install at Landlord’s cost and expense a separate meter for Tenant’s electric usage in which event Tenant shall thereafter obtain and pay for its electricity directly from the electric utility servicing the Building.

13.2 Should Tenant require any additional work or service, as described above, including services furnished outside ordinary business hours specified above, Landlord may, on terms to be agreed, upon reasonable advance notice by Tenant, furnish such additional service and Tenant agrees to pay Landlord such charges as may be agreed upon, including any tax imposed thereon, but in no event at a charge less than Landlord’s actual cost plus overhead for such additional service and, where appropriate, a reasonable allowance for depreciation of any systems being used to provide such service. The current charge for after-hours HVAC service, which is subject to change at any time, is specified on the Reference Pages.

13.3 Wherever heat-generating machines or equipment are used by Tenant in the Premises which affect the temperature otherwise maintained by the air conditioning system or Tenant allows occupancy of the Premises by more persons than the heating and air conditioning system is designed to accommodate, in either event whether with or without Landlord’s approval, Landlord reserves the right to install supplementary heating and/or air conditioning units in or for the benefit of the Premises and the cost thereof, including the cost of installation and the cost of operations and maintenance, shall be paid by Tenant to Landlord within ten (10) business days of Landlord’s demand.

13.4 Tenant will not, without the written consent of Landlord, use any apparatus or device in the Premises, including but not limited to, electronic data processing machines and machines using current in excess of 2000 ▇▇▇▇▇ and/or 20 amps or 120 volts, which will in any way increase the amount of electricity or water usually furnished or supplied for use of the Premises for normal office use, nor connect with electric current, except through existing electrical outlets in the Premises, or water pipes, any apparatus or device for the purposes of using electrical current or water. If Tenant shall require water or electric current in excess of that usually furnished or supplied for use of the Premises as normal office use, Tenant shall procure the prior written consent of Landlord for the use thereof, which Landlord may refuse, and if Landlord does consent, Landlord may cause a water meter or electric current meter to be installed so as to measure the amount of such excess water and electric current. The cost of any such meters shall be paid for by Tenant. Tenant agrees to pay to Landlord within five (5) days of Landlord’s demand , the cost of all such excess water and electric current consumed (as shown by said meters, if any, or, if none, as reasonably estimated by Landlord) at the rates charged for such services by the local public utility or agency, as the case may be, furnishing the same, plus any additional expense incurred in keeping account of the water and electric current so consumed.

13.5 Tenant will not, without the written consent of Landlord, contract with a utility provider to service the Premises with any utility, including, but not limited to, electricity, water, sewer or gas, which is not previously providing such service to other tenants in the Building. Subject to Landlord’s reasonable rules and regulations and the provisions of Articles 6 and 26, Tenant shall be entitled to the use of wiring (“Communications Wiring”) from the existing telecommunications nexus in the Building to the Premises, sufficient for normal general office use of the Premises. Tenant shall not install any additional Communications Wiring, nor remove any Communications Wiring, without in each instance obtaining the prior written consent of Landlord, which consent may be withheld in Landlord’s sole and absolute discretion. Landlord’s shall in no event be liable for disruption in any service obtained by Tenant pursuant to this paragraph.

14. HOLDING OVER. Tenant shall pay Landlord for each day Tenant retains possession of the Premises or part of them after termination of this Lease by lapse of time or otherwise at the rate (“Holdover Rate”) which shall be One Hundred Fifty Percent (150%) of the amount of the Annual Rent for the last period prior to the date of such termination plus all Rent Adjustments under Article 4, prorated on a daily basis, and also pay all damages sustained by Landlord by reason of such retention. If Landlord gives notice to Tenant of Landlord’s election to such effect, such holding over shall constitute renewal of this Lease for a period from month to month at the Holdover Rate, but if the Landlord does not so elect, no such renewal shall result notwithstanding acceptance by Landlord of any sums due hereunder after such termination; and instead, a tenancy at sufferance at the Holdover Rate shall be deemed to have been created. In any event, no provision of this Article 14 shall be deemed to waive Landlord’s right of reentry or any other right under this Lease or at law.

15. SUBORDINATION. Without the necessity of any additional document being executed by Tenant for the purpose of effecting a subordination, this Lease shall be subject and subordinate at all times to ground or underlying leases and to the lien of any mortgages or deeds of trust now or hereafter placed on, against or affecting the Building, Landlord’s interest or estate in the Building, or any ground or underlying lease; provided, however, that if the lessor, mortgagee, trustee, or holder of any such mortgage or deed of trust elects to have Tenant’s interest in this Lease be superior to any such instrument, then, by notice to Tenant, this Lease shall be deemed superior, whether this Lease was executed before or after said instrument. Notwithstanding the foregoing, Tenant covenants and agrees to execute and deliver within ten (10) days of Landlord’s request such further instruments evidencing such

subordination or superiority of this Lease as may be required by Landlord. At Tenant’s request and at Tenant’s sole expense, Landlord shall make request of any future mortgagee (there is no current mortgagee) that it provide a non-disturbance agreement in favor of Tenant, but the failure to obtain such non-disturbance agreement shall not be a failure of condition of this Lease. Tenant shall reimburse Landlord for any fees and charges imposed by said mortgagee in connection with the non-disturbance agreement, as well as for reasonable attorneys’ fees and costs incurred by Landlord.

16. RULES AND REGULATIONS. Tenant shall faithfully observe and comply with all the rules and regulations as set forth in Exhibit D to this Lease and all reasonable and non-discriminatory modifications of and additions to them from time to time put into effect by Landlord. Landlord shall not be responsible to Tenant for the non-performance by any other tenant or occupant of the Building of any such rules and regulations; provided that Landlord shall use reasonable efforts to enforce such rules and regulations against other tenants and occupants of the Building. In the event of a conflict between the rules and regulations set forth in Exhibit D and the term of this Lease, the terms of this Lease shall control.

17. REENTRY BY LANDLORD.

17.1 Landlord reserves and shall at all times and pursuant to the notice and restriction requirements set forth below, have the right to re-enter the Premises to inspect the same, to supply janitor service and any other service to be provided by Landlord to Tenant under this Lease, to show said Premises to prospective purchasers, mortgagees or tenants ( but for tenants, only during the last six (6) months of the Term of this Lease) and to alter, improve or repair the Premises and any portion of the Building, without abatement of rent, and may for that purpose erect, use and maintain scaffolding, pipes, conduits and other necessary structures and open any wall, ceiling or floor in and through the Building and Premises where reasonably required by the character of the work to be performed, provided entrance to the Premises shall not be blocked thereby, and further provided that the business of Tenant shall not be interfered with unreasonably. All entrances by Landlord shall be subject to reasonable advance notice by Landlord (except in instances of emergency, Tenant’s reasonable confidentiality requirements (including, but limited to, a representative of Tenant accompanying Landlord’s personnel while on the Premises). Landlord shall have the right at any time to change the arrangement and/or locations of entrances, or passageways, doors and doorways, and corridors, windows, elevators, stairs, toilets or other public parts of the Building and to change the name, number or designation by which the Building is commonly known. In the event that Landlord damages any portion of any wall or wall covering, ceiling, or floor or floor covering within the Premises, Landlord shall, as its sole cost, repair or replace the damaged portion to match the original as nearly as commercially reasonable but shall not be required to repair or replace more than the portion actually damaged. Except for instances of Landlord’s gross negligence or willful misconduct, Tenant hereby waives any claim for damages for any injury or inconvenience to or interference with Tenant’s business, any loss of occupancy or quiet enjoyment of the Premises, and any other loss occasioned by any action of Landlord authorized by this Article 17.

17.2 For each of the aforesaid purposes, Landlord shall at all times have and retain a key with which to unlock all of the doors in the Premises, excluding Tenant’s vaults and safes or special security areas (designated in advance), and Landlord shall have the right to use any and all means which Landlord may deem proper to open said doors in an emergency to obtain entry to any portion of the Premises. As to any portion to which access cannot be had by means of a key or keys in Landlord’s possession, Landlord is authorized to gain access by such means as Landlord shall elect and the cost of repairing any damage occurring in doing so shall be borne by Tenant and paid to Landlord within five (5) days of Landlord’s demand.

18. DEFAULT.

18.1 Except as otherwise provided in Article 20, the following events shall be deemed to be Events of Default under this Lease:

18.1.1 Tenant shall fail to pay when due any sum of money becoming due to be paid to Landlord under this Lease, whether such sum be any installment of the rent reserved by this Lease, any other amount treated as additional rent under this Lease, or any other payment or reimbursement to Landlord required by this Lease, whether or not treated as additional rent under this Lease, and such failure shall continue for a period of ten (10) business days after written notice that such payment was not made when due, but if any such notice shall be given, for the twelve (12) month period commencing with the date of such notice, the failure to pay within ten (10) days after due any additional sum of money becoming due to be paid to Landlord under this Lease during such period shall be an Event of Default, without notice.

18.1.2 Tenant shall fail to comply with any term, provision or covenant of this Lease which is not provided for in another Section of this Article and shall not cure such failure within twenty (20) business days (forthwith, if the failure involves a hazardous condition) after written notice of such failure to Tenant provided, however, that such failure shall not be an event of default if such failure could not reasonably be cured during such twenty (20) business day period, Tenant has commenced the cure within such twenty (20) business day period and thereafter is diligently pursuing such cure to completion, but the total aggregate cure period shall not exceed ninety (90) days.

18.1.3 Tenant shall fail to vacate the Premises immediately upon termination of this Lease, by lapse of time or otherwise, or upon termination of Tenant’s right to possession only, but subject to the provisions of Section 14 of this Lease.

18.1.4 Tenant shall become insolvent, admit in writing its inability to pay its debts generally as they become due, file a petition in bankruptcy or a petition to take advantage of any insolvency statute, make an assignment for the benefit of creditors, make a transfer in fraud of creditors, apply for or consent to the appointment of a receiver of itself or of the whole or any substantial part of its property, or file a petition or answer seeking reorganization or arrangement under the federal bankruptcy laws, as now in effect or hereafter amended, or any other applicable law or statute of the United States or any state thereof.

18.1.5 A court of competent jurisdiction shall enter an order, judgment or decree adjudicating Tenant bankrupt, or appointing a receiver of Tenant, or of the whole or any substantial part of its property, without the consent of Tenant, or approving a petition filed against Tenant seeking reorganization or arrangement of Tenant under the bankruptcy laws of the United States, as now in effect or hereafter amended, or any state thereof, and such order, judgment or decree shall not be vacated or set aside or stayed within ninety (90) days from the date of entry thereof.

19. REMEDIES.

19.1 Except as otherwise provided in Article 20, upon the occurrence of any of the Events of Default described or referred to in Article 18, Landlord shall have the option to pursue any one or more of the following remedies without any notice or demand whatsoever, concurrently or consecutively and not alternatively:

19.1.1 Landlord may, at its election, terminate this Lease or terminate Tenant’s right to possession only, without terminating the Lease.

19.1.2 Upon any termination of this Lease, whether by lapse of time or otherwise, or upon any termination of Tenant’s right to possession without termination of the Lease, Tenant shall surrender possession and vacate the Premises immediately, and deliver possession thereof to Landlord, and Tenant hereby grants to Landlord full and free license to enter into and upon the Premises in such event and to repossess Landlord of the Premises as of Landlord’s former estate and to expel or remove Tenant and any others who may be occupying or be within the Premises and to remove Tenant’s signs and other evidence of tenancy and all other property of Tenant therefrom without being deemed in any manner guilty of trespass, eviction or forcible entry or detainer, and without incurring any liability for any damage resulting therefrom, Tenant waiving any right to claim damages for such re-entry and expulsion, and without relinquishing Landlord’s right to rent or any other right given to Landlord under this Lease or by operation of law.

19.1.3 Upon any termination of this Lease, whether by lapse of time or otherwise, Landlord shall be entitled to recover as damages, all rent, including any amounts treated as additional rent under this Lease, and other sums due and payable by Tenant on the date of termination, plus as liquidated damages and not as a penalty, an amount equal to the sum of: (a) an amount equal to the then present value of the rent reserved in this Lease for the residue of the stated Term of this Lease including any amounts treated as additional rent under this

Lease and all other sums provided in this Lease to be paid by Tenant, minus the fair rental value of the Premises for such residue; (b) the value of the time and expense necessary to obtain a replacement tenant or tenants, and the estimated expenses described in Section 19.1.4 relating to recovery of the Premises, preparation for reletting and for reletting itself; and (c) the cost of performing any other covenants which would have otherwise been performed by Tenant.

19.1.4 Upon any termination of Tenant’s right to possession only without termination of the Lease:

19.1.4.1 Neither such termination of Tenant’s right to possession nor Landlord’s taking and holding possession thereof as provided in Section 19.1.2 shall terminate the Lease or release Tenant, in whole or in part, from any obligation, including Tenant’s obligation to pay the rent, including any amounts treated as additional rent, under this Lease for the full Term, and if Landlord so elects Tenant shall continue to pay to Landlord the entire amount of the rent as and when it becomes due, including any amounts treated as additional rent under this Lease, for the remainder of the Term plus any other sums provided in this Lease to be paid by Tenant for the remainder of the Term.

19.1.4.2 Landlord shall use commercially reasonable efforts to relet the Premises or portions thereof to the extent required by applicable law. Landlord and Tenant agree that nevertheless Landlord shall at most be required to use only the same efforts Landlord then uses to lease premises in the Building generally and that in any case that Landlord shall not be required to give any preference or priority to the showing or leasing of the Premises or portions thereof over any other space that Landlord may be leasing or have available and may place a suitable prospective tenant in any such other space regardless of when such other space becomes available and that Landlord shall have the right to relet the Premises for a greater or lesser term than that remaining under this Lease, the right to relet only a portion of the Premises, or a portion of the Premises or the entire Premises as a part of a larger area, and the right to change the character or use of the Premises. In connection with or in preparation for any reletting, Landlord may, but shall not be required to, make repairs, alterations and additions in or to the Premises and redecorate the same to the extent Landlord deems necessary or desirable, and Tenant shall pay the cost thereof, together with Landlord’s expenses of reletting, including, without limitation, any commission incurred by Landlord, within five (5) days of Landlord’s demand. Landlord shall not be required to observe any instruction given by Tenant about any reletting or accept any tenant offered by Tenant unless such offered tenant has a credit-worthiness acceptable to Landlord and leases the entire Premises upon terms and conditions including a rate of rent (after giving effect to all expenditures by Landlord for tenant improvements, broker’s commissions and other leasing costs) all no less favorable to Landlord than as called for in this Lease, nor shall Landlord be required to make or permit any assignment or sublease for more than the current term or which Landlord would not be required to permit under the provisions of Article 9.

19.1.4.3 Until such time as Landlord shall elect to terminate the Lease and shall thereupon be entitled to recover the amounts specified in such case in Section 19.1.3, Tenant shall pay to Landlord upon demand the full amount of all rent, including any amounts treated as additional rent under this Lease and other sums reserved in this Lease for the remaining Term, together with the costs of repairs, alterations, additions, redecorating and Landlord’s expenses of reletting and the collection of the rent accruing therefrom (including reasonable attorney’s fees and broker’s commissions), as the same shall then be due or become due from time to time, less only such consideration as Landlord may have received from any reletting of the Premises; and Tenant agrees that Landlord may file suits from time to time to recover any sums falling due under this Article 19 as they become due. Any proceeds of reletting by Landlord in excess of the amount then owed by Tenant to Landlord from time to time shall be credited against Tenant’s future obligations under this Lease but shall not otherwise be refunded to Tenant or inure to Tenant’s benefit.

19.2 Upon the occurrence of an Event of Default, Landlord may (but shall not be obligated to) cure such default at Tenant’s sole expense. Without limiting the generality of the foregoing, Landlord may, at Landlord’s option, enter into and upon the Premises if Landlord determines in its sole discretion that Tenant is not acting within a commercially reasonable time to maintain, repair or replace anything for which Tenant is responsible under this Lease or to otherwise effect compliance with its obligations under this Lease and correct the same, without being deemed in any manner guilty of trespass, eviction or forcible entry and detainer and without incurring any liability for any damage or interruption of Tenant’s business resulting therefrom and Tenant agrees to reimburse Landlord within five (5) days of Landlord’s demand as additional rent, for any expenses which Landlord may incur in thus effecting compliance with Tenant’s obligations under this Lease, plus interest from the date of expenditure by Landlord at the Wall Street Journal prime rate.

19.3 Tenant understands and agrees that in entering into this Lease, Landlord is relying upon receipt of all the Annual and Monthly Installments of Rent to become due with respect to all the Premises originally leased hereunder over the full Initial Term of this Lease for amortization, including interest at the Amortization Rate. Accordingly, Tenant agrees that if this Lease or Tenant’s right to possession of the Premises leased hereunder shall be terminated as of any date (“Default Termination Date”) prior to the expiration of the full Initial Term hereof by reason of a default of Tenant, there shall be due and owing to Landlord as of the day prior to the Default Termination Date, as rent in addition to all other amounts owed by Tenant as of such Date all the Annual and Monthly Installments of Rent to become due with respect to all the Premises originally leased hereunder over the full Initial Term of this Lease for amortization, including interest at the Amortization Rate.

19.4 If, on account of any breach or default by Tenant in Tenant’s obligations under the terms and conditions of this Lease, it shall become necessary or appropriate for Landlord to employ or consult with an attorney or collection agency concerning or to enforce or defend any of Landlord’s rights or remedies arising under this Lease or to collect any sums due from Tenant, Tenant agrees to pay all costs and fees so incurred by Landlord, including, without limitation, reasonable attorneys’ fees and costs. TENANT EXPRESSLY WAIVES ANY RIGHT TO A TRIAL BY JURY.

19.5 Pursuit of any of the foregoing remedies shall not preclude pursuit of any of the other remedies provided in this Lease or any other remedies provided by law (all such remedies being cumulative), nor shall pursuit of any remedy provided in this Lease constitute a forfeiture or waiver of any rent due to Landlord under this Lease or of any damages accruing to Landlord by reason of the violation of any of the terms, provisions and covenants contained in this Lease.

19.6 No act or thing done by Landlord or its agents during the Term shall be deemed a termination of this Lease or an acceptance of the surrender of the Premises, and no agreement to terminate this Lease or accept a surrender of said Premises shall be valid, unless in writing signed by Landlord. No waiver by Landlord of any violation or breach of any of the terms, provisions and covenants contained in this Lease shall be deemed or construed to constitute a waiver of any other violation or breach of any of the terms, provisions and covenants contained in this Lease. Landlord’s acceptance of the payment of rental or other payments after the occurrence of an Event of Default shall not be construed as a waiver of such Default, unless Landlord so notifies Tenant in writing. Forbearance by Landlord in enforcing one or more of the remedies provided in this Lease upon an Event of Default shall not be deemed or construed to constitute a waiver of such Default or of Landlord’s right to enforce any such remedies with respect to such Default or any subsequent Default.

19.7 Intentionally Deleted.

19.8 Any and all property which may be removed from the Premises by Landlord pursuant to the authority of this Lease or of law, to which Tenant is or may be entitled, may be handled, removed and/or stored, as the case may be, by or at the direction of Landlord but at the risk, cost and expense of Tenant, and Landlord shall in no event be responsible for the value, preservation or safekeeping thereof. Tenant shall pay to Landlord, upon demand, any and all expenses incurred in such removal and all storage charges against such property so long as the same shall be in Landlord’s possession or under Landlord’s control. Any such property of Tenant not retaken by Tenant from storage within thirty (30) days after removal from the Premises shall, at Landlord’s option, be deemed conveyed by Tenant to Landlord under this Lease as by a ▇▇▇▇ of sale without further payment or credit by Landlord to Tenant.

19.9 If more than two (2) Events of Default occurs during the Term or any extension thereof, Tenant’s extension options, expansion options, purchase options and rights of first offer and/or refusal, if any are provided for in this Lease, shall be null and void.

20. TENANT’S BANKRUPTCY OR INSOLVENCY.

20.1 If at any time and for so long as Tenant shall be subjected to the provisions of the United States Bankruptcy Code or other law of the United States or any state thereof for the protection of debtors as in effect at such time (each a “Debtor’s Law”):

20.1.1 Tenant, Tenant as debtor-in-possession, and any trustee or receiver of Tenant’s assets (each a “Tenant’s Representative”) shall have no greater right to assume or assign this Lease or any interest in this Lease, or to sublease any of the Premises than accorded to Tenant in Article 9, except to the extent Landlord shall be required to permit such assumption, assignment or sublease by the provisions of such Debtor’s Law. Without limitation of the generality of the foregoing, any right of any Tenant’s Representative to assume or assign this Lease or to sublease any of the Premises shall be subject to the conditions that:

20.1.1.1 Such Debtor’s Law shall provide to Tenant’s Representative a right of assumption of this Lease which Tenant’s Representative shall have timely exercised and Tenant’s Representative shall have fully cured any default of Tenant under this Lease.

20.1.1.2 Tenant’s Representative or the proposed assignee, as the case shall be, shall have deposited with Landlord as security for the timely payment of rent an amount equal to the larger of: (a) three (3) months’ rent and other monetary charges accruing under this Lease; and (b) any sum specified in Article 5; and shall have provided Landlord with adequate other assurance of the future performance of the obligations of the Tenant under this Lease. Without limitation, such assurances shall include, at least, in the case of assumption of this Lease, demonstration to the satisfaction of the Landlord that Tenant’s Representative has and will continue to have sufficient unencumbered assets after the payment of all secured obligations and administrative expenses to assure Landlord that Tenant’s Representative will have sufficient funds to fulfill the obligations of Tenant under this Lease; and, in the case of assignment, submission of current financial statements of the proposed assignee, audited by an independent certified public accountant reasonably acceptable to Landlord and showing a net worth and working capital in amounts determined by Landlord to be sufficient to assure the future performance by such assignee of all of the Tenant’s obligations under this Lease.

20.1.1.3 The assumption or any contemplated assignment of this Lease or subleasing any part of the Premises, as shall be the case, will not breach any provision in any other lease, mortgage, financing agreement or other agreement by which Landlord is bound.

20.1.1.4 Landlord shall have, or would have had absent the Debtor’s Law, no right under Article 9 to refuse consent to the proposed assignment or sublease by reason of the identity or nature of the proposed assignee or sublessee or the proposed use of the Premises concerned.

21. QUIET ENJOYMENT. Landlord represents and warrants that it has full right and authority to enter into this Lease and that Tenant, while paying the rental and performing its other covenants and agreements contained in this Lease, shall peaceably and quietly have, hold and enjoy the Premises for the Term without hindrance or molestation from Landlord subject to the terms and provisions of this Lease. Landlord shall not be liable for any interference or disturbance by other tenants or third persons, nor shall Tenant be released from any of the obligations of this Lease because of such interference or disturbance; provided however, that Landlord shall use all commercially reasonable efforts to exercise its contractual and legal rights to minimize the extent of any such interference or disturbance.

22. CASUALTY

22.1 In the event the Premises or the Building are damaged by fire or other cause and in Landlord’s reasonable estimation such damage can be materially restored within one hundred eighty (180) days, Landlord shall forthwith repair the same and this Lease shall remain in full force and effect, except that Tenant shall be entitled to a proportionate abatement in rent from the date of such damage. Such abatement of rent shall be made pro rata in accordance with the extent to which the damage and the making of such repairs shall interfere with the use and occupancy by Tenant of the Premises from time to time. Within forty-five (45) days from the date of such damage,

Landlord shall notify Tenant, in writing, of Landlord’s reasonable estimation of the length of time within which material restoration can be made, and Landlord’s determination shall be binding on Tenant. For purposes of this Lease, the Building or Premises shall be deemed “materially restored” if they are in such condition as would not prevent or materially interfere with Tenant’s use of the Premises for the purpose for which it was being used immediately before such damage.

22.2 If such repairs cannot, in Landlord’s reasonable estimation, be made within one hundred eighty (180) days, Landlord and Tenant shall each have the option of giving the other, at any time within ninety (90) days after such damage, notice terminating this Lease as of the date of such damage. In the event of the giving of such notice, this Lease shall expire and all interest of the Tenant in the Premises shall terminate as of the date of such damage as if such date had been originally fixed in this Lease for the expiration of the Term. In the event that neither Landlord nor Tenant exercises its option to terminate this Lease, then Landlord shall forthwith repair or restore such damage, this Lease continuing in full force and effect, and the rent hereunder shall be proportionately abated as provided in Section 22.1.

22.3 Landlord shall not be required to repair or replace any damage or loss by or from fire or other cause to any panelings, decorations, partitions, additions, railings, ceilings, floor coverings, office fixtures or any other property or improvements installed on the Premises by, or belonging to, Tenant. Any property insurance which may be carried by Landlord or Tenant against loss or damage to the Building or Premises shall be for the sole benefit of the party carrying such insurance and under its sole control.

22.4 In the event that Landlord should fail to complete such repairs and material restoration within sixty (60) days after the date estimated by Landlord therefor as extended by this Section 22.4, Tenant may at its option and as its sole remedy terminate this Lease by delivering written notice to Landlord, within fifteen (15) days after the expiration of said period of time, whereupon the Lease shall end on the date of such notice or such later date fixed in such notice as if the date of such notice was the date originally fixed in this Lease for the expiration of the Term; provided, however, that if construction is delayed because of changes, deletions or additions in construction requested by Tenant, strikes, lockouts, casualties, Acts of God, war, material or labor shortages, government regulation or control or other causes beyond the reasonable control of Landlord, the period for restoration, repair or rebuilding shall be extended for the amount of time Landlord is so delayed.

22.5 Notwithstanding anything to the contrary contained in this Article: (a) Landlord and Tenant shall have the right to terminate this Lease by notice to the other party within fifteen (15) days when the damages resulting from any casualty covered by the provisions of this Article 22 occur during the last twelve (12) months of the Term or any extension thereof; and (b) in the event the holder of any indebtedness secured by a mortgage or deed of trust covering the Premises or Building requires that any insurance proceeds be applied to such indebtedness, then Landlord shall have the right to terminate this Lease by delivering written notice of termination to Tenant within fifteen (15) days after such requirement is made by any such holder, whereupon this Lease shall end on the date of such damage as if the date of such damage were the date originally fixed in this Lease for the expiration of the Term.

22.6 In the event of any damage or destruction to the Building or Premises by any peril covered by the provisions of this Article 22, it shall be Tenant’s responsibility to properly secure the Premises and upon notice from Landlord to remove forthwith, at its sole cost and expense, such portion of all of the property belonging to Tenant or its licensees from such portion or all of the Building or Premises as Landlord shall request.

23. EMINENT DOMAIN. If all or any substantial part of the Premises shall be taken or appropriated by any public or quasi-public authority under the power of eminent domain, or conveyance in lieu of such appropriation, either party to this Lease shall have the right, at its option, of giving the other, at any time within thirty (30) days after such taking, notice terminating this Lease, except that Tenant may only terminate this Lease by reason of taking or appropriation, if such taking or appropriation shall be so substantial as to materially interfere with Tenant’s use and occupancy of the Premises. If neither party to this Lease shall so elect to terminate this Lease, the rental thereafter to be paid shall be adjusted on a fair and equitable basis under the circumstances. In addition to the rights of Landlord above, if any substantial part of the Building shall be taken or appropriated by any public or quasi-public authority under the power of eminent domain or conveyance in lieu thereof, and regardless of whether the Premises or any part thereof are so taken or appropriated, Landlord shall have the right, at its sole option, to

terminate this Lease. Landlord shall be entitled to any and all income, rent, award, or any interest whatsoever in or upon any such sum, which may be paid or made in connection with any such public or quasi-public use or purpose, and Tenant hereby assigns to Landlord any interest it may have in or claim to all or any part of such sums, other than any separate award which may be made with respect to Tenant’s trade fixtures and moving expenses; Tenant shall make no claim for the value of any unexpired Term.

24. SALE BY LANDLORD. In event of a sale or conveyance by Landlord of the Building, and provided that Landlord has transferred the Security Deposit and any other escrowed amounts to the assignee of the Lease, the same shall operate to release Landlord from any future liability upon any of the covenants or conditions, expressed or implied, contained in this Lease in favor of Tenant, and in such event Tenant agrees to look solely to the responsibility of the successor in interest of Landlord in and to this Lease. Except as set forth in this Article 24, this Lease shall not be affected by any such sale and Tenant agrees to attorn to the purchaser or assignee. If any security has been given by Tenant to secure the faithful performance of any of the covenants of this Lease, Landlord may transfer or deliver said security, as such, to Landlord’s successor in interest and thereupon Landlord shall be discharged from any further liability with regard to said security.

25. ESTOPPEL CERTIFICATES. Within fifteen (15) days following any written request which Landlord may make from time to time, Tenant shall execute and deliver to Landlord or mortgagee or prospective mortgagee a sworn statement certifying: (a) the date of commencement of this Lease; (b) the fact that this Lease is unmodified and in full force and effect (or, if there have been modifications to this Lease, that this lease is in full force and effect, as modified, and stating the date and nature of such modifications); (c) the date to which the rent and other sums payable under this Lease have been paid; (d) the fact that there are or are not any current defaults under this Lease by either Landlord or Tenant; and (e) such other matters as may be requested by Landlord. Landlord and Tenant intend that any statement delivered pursuant to this Article 25 may be relied upon by any mortgagee, beneficiary or purchaser, and Tenant shall be liable for all loss, cost or expense resulting from the failure of any sale or funding of any loan caused by any material misstatement contained in such estoppel certificate.

26. SURRENDER OF PREMISES.

26.1 Tenant shall arrange to meet Landlord for two (2) joint inspections of the Premises, the first to occur at least thirty (30) days (but no more than sixty (60) days) before the last day of the Term, and the second to occur not later than forty-eight (48) hours after Tenant has vacated the Premises. In the event of Tenant’s failure to arrange such joint inspections and/or participate in either such inspection, Landlord’s inspection at or after Tenant’s vacating the Premises shall be conclusively deemed correct for purposes of determining Tenant’s responsibility for repairs and restoration.

26.2 All alterations, additions, and improvements in, on, or to the Premises made or installed by or for Tenant, including, without limitation, carpeting (collectively, “Alterations”), shall be and remain the property of Tenant during the Term. Upon the expiration or sooner termination of the Term, all Alterations shall become a part of the realty and shall belong to Landlord without compensation, and title shall pass to Landlord under this Lease as by a ▇▇▇▇ of sale. At the end of the Term or any extension of the Term or other sooner termination of this Lease, Tenant will peaceably deliver up to Landlord possession of the Premises, together with all Alterations by whomsoever made, in the same conditions received or first installed, broom clean and free of all debris, excepting only ordinary wear and tear and damage by fire or other casualty. Notwithstanding the foregoing, if Landlord elects by notice given to Tenant at least thirty (30) days prior to expiration of the Term, Tenant shall, at Tenant’s sole cost, remove any Alterations, including carpeting, so designated by Landlord’s notice, and repair any damage caused by such removal. Tenant must, at Tenant’s sole cost, remove upon termination of this Lease, any and all of Tenant’s furniture, furnishings, equipment, movable partitions of less than full height from floor to ceiling and other trade fixtures and personal property, as well as all data/telecommunications cabling and wiring installed by or on behalf of Tenant, whether inside walls, under any raised floor or above any ceiling (collectively, “Personalty”). Personalty not so removed shall be deemed abandoned by the Tenant and title to the same shall thereupon pass to Landlord under this Lease as by a ▇▇▇▇ of sale, but Tenant shall remain responsible for the cost of removal and disposal of such Personalty, as well as any damage caused by such removal. All obligations of Tenant under this Lease not fully performed as of the expiration or earlier termination of the Term shall survive the expiration or earlier termination of the Term Upon the expiration or earlier termination of the Term, Tenant shall pay to Landlord the amount, as estimated by Landlord, necessary to repair and restore the Premises as provided in this Lease and/or to discharge

Tenant’s obligation for unpaid amounts due or to become due to Landlord. All such amounts shall be used and held by Landlord for payment of such obligations of Tenant, with Tenant being liable for any additional costs upon demand by Landlord, or with any excess to be returned to Tenant after all such obligations have been determined and satisfied. Any otherwise unused Security Deposit shall be credited against the amount payable by Tenant under this Lease.

27. NOTICES. Any notice or document required or permitted to be delivered under this Lease shall be addressed to the intended recipient at the address for such party set forth in the Reference Page of this Lease, by fully prepaid registered or certified United States Mail return receipt requested, or by reputable independent contract delivery service furnishing a written record of attempted or actual delivery, and shall be deemed to be delivered upon receipt.

28. TAXES PAYABLE BY TENANT. In addition to rent and other charges to be paid by Tenant under this Lease, Tenant shall reimburse to Landlord, upon demand, any and all taxes payable by Landlord (other than net income taxes) whether or not now customary or within the contemplation of the parties to this Lease: (a) upon, allocable to, or measured by or on the gross or net rent payable under this Lease, including without limitation any gross income tax or excise tax levied by the State, any political subdivision thereof, or the Federal Government with respect to the receipt of such rent; (b) upon or with respect to the possession, leasing, operation, management, maintenance, alteration, repair, use or occupancy of the Premises or any portion thereof, including any sales, use or service tax imposed as a result thereof; (c) upon or measured by the Tenant’s gross receipts or payroll or the value of Tenant’s equipment, furniture, fixtures and other personal property of Tenant or leasehold improvements, alterations or additions located in the Premises; or (d) upon this transaction or any document to which Tenant is a party creating or transferring any interest of Tenant in this Lease or the Premises. In addition to the foregoing, Tenant agrees to pay, before delinquency, any and all taxes levied or assessed against Tenant and which become payable during the term hereof upon Tenant’s equipment, furniture, fixtures and other personal property of Tenant located in the Premises.

29. RELOCATION OF TENANT. Landlord, at its sole expense, on at least ninety (90) days prior written notice, may require Tenant to move from the Premises to other space of comparable size and decor in order to permit Landlord to consolidate the space leased to Tenant with other adjoining space leased or to be leased to another tenant. If the new space in the Building offered to Tenant is not acceptable to Tenant, Tenant may terminate this Lease by written notice to Landlord given not later than ten (10) days after Tenant inspects the new space, such termination to be effective on the date originally specified for relocation in Landlord’s relocation notice. However, Landlord may withdraw its relocation notice and nullify Tenant’s termination of the Lease by written notice to Tenant given not later than ten (10) days after Landlord’s receipt of Tenant’s termination notice, whereupon the Lease shall continue in full force and effect without relocating the Premises. In the event of any such relocation, Landlord will pay all expenses of preparing and decorating the new premises so that they will be substantially similar to the Premises from which Tenant is moving, and Landlord will also pay the expense of moving Tenant’s furniture and equipment to the relocated premises, as well as all other reasonable out of pocket costs incurred by Tenant due to the relocation, such as new stationery and business cards. In such event this Lease and each and all of the terms and covenants and conditions hereof shall remain in full force and effect and thereupon be deemed applicable to such new space except that revised Reference Pages and a revised Exhibit A shall become part of this Lease and shall reflect the location of the new premises. Landlord’s right to relocate under this Section may only be exercised once during the Term or any extension thereof.

30. DEFINED TERMS AND HEADINGS. The Article headings shown in this Lease are for convenience of reference and shall in no way define, increase, limit or describe the scope or intent of any provision of this Lease. Any indemnification or insurance of Landlord shall apply to and inure to the benefit of all the following “Landlord Entities”, being Landlord, Landlord’s investment manager, and the trustees, boards of directors, officers, general partners, beneficiaries, stockholders, employees and agents of each of them. Any option granted to Landlord shall also include or be exercisable by Landlord’s trustee, beneficiary, agents and employees, as the case may be. In any case where this Lease is signed by more than one person, the obligations under this Lease shall be joint and several. The terms “Tenant” and “Landlord” or any pronoun used in place thereof shall indicate and include the masculine or feminine, the singular or plural number, individuals, firms or corporations, and their and each of their respective successors, executors, administrators and permitted assigns, according to the context hereof. The term “rentable area” shall mean the rentable area of the Premises or the Building as calculated by the Landlord on the basis of the

plans and specifications of the Building including a proportionate share of any common areas. Absent manifest error, Tenant hereby accepts and agrees to be bound by the figures for the rentable square footage of the Premises and Tenant’s Proportionate Share shown on the Reference Pages; however, Landlord may adjust either or both figures if there is manifest error, addition or subtraction to the Building or any business park or complex of which the Building is a part, remeasurement or other circumstance reasonably justifying adjustment. The term “Building” refers to the structure in which the Premises are located and the common areas (parking lots, sidewalks, landscaping, etc.) appurtenant thereto. If the Building is part of a larger complex of structures, the term “Building” may include the entire complex, where appropriate (such as shared Expenses, Insurance Costs or Taxes) and subject to Landlord’s reasonable discretion.

31. TENANT’S AUTHORITY. If Tenant signs as a corporation, partnership, trust or other legal entity each of the persons executing this Lease on behalf of Tenant represents and warrants that Tenant has been and is qualified to do business in the state in which the Building is located, that the entity has full right and authority to enter into this Lease, and that all persons signing on behalf of the entity were authorized to do so by appropriate actions. Tenant agrees to deliver to Landlord, simultaneously with the delivery of this Lease, a corporate resolution, proof of due authorization by partners, opinion of counsel or other appropriate documentation reasonably acceptable to Landlord evidencing the due authorization of Tenant to enter into this Lease.

Tenant hereby represents and warrants that neither Tenant, nor any persons or entities holding any legal or beneficial interest whatsoever in Tenant, are (i) the target of any sanctions program that is established by Executive Order of the President or published by the Office of Foreign Assets Control, U.S. Department of the Treasury (“OFAC”); (ii) designated by the President or OFAC pursuant to the Trading with the Enemy Act, 50 U.S.C. App. § 5, the International Emergency Economic Powers Act, 50 U.S.C. §§ 1701-06, the Patriot Act, Public Law 107-56, Executive Order 13224 (September 23, 2001) or any Executive Order of the President issued pursuant to such statutes; or (iii) named on the following list that is published by OFAC: “List of Specially Designated Nationals and Blocked Persons.” If the foregoing representation is untrue at any time during the Term, an Event of Default will be deemed to have occurred, without the necessity of notice to Tenant.

32. FINANCIAL STATEMENTS AND CREDIT REPORTS. Landlord understands that Tenant is a publicly-traded company subject to the reporting requirements of the Securities Act of 1934. As such, all of Tenant’s quarterly and annual reports are available to the general public and Tenant shall have no obligation to provide to Landlord anything other than such publicly available financial statements. If at any time Tenant is not publicly traded and its financial information is not publicly available, then at Landlord’s request, Tenant shall deliver to Landlord a copy, certified by an officer of Tenant as being a true and correct copy, of Tenant’s most recent audited financial statement, or, if unaudited, certified by Tenant’s chief financial officer as being true, complete and correct in all material respects. Tenant hereby authorizes Landlord to obtain one or more credit reports on Tenant at any time, and shall execute such further authorizations as Landlord may reasonably require in order to obtain a credit report.

33. COMMISSIONS. Each of the parties represents and warrants to the other that it has not dealt with any broker or finder in connection with this Lease, except as described on the Reference Pages (the “Brokers”). Landlord covenants that it will pay such Brokers pursuant to separate agreements between Landlord and the Brokers and that Landlord shall indemnify and hold Tenant harmless against any obligation to make any payments to such Brokers.

34. TIME AND APPLICABLE LAW. Time is of the essence of this Lease and all of its provisions. This Lease shall in all respects be governed by the laws of the state in which the Building is located.

35. SUCCESSORS AND ASSIGNS. Subject to the provisions of Article 9, the terms, covenants and conditions contained in this Lease shall be binding upon and inure to the benefit of the heirs, successors, executors, administrators and assigns of the parties to this Lease.

36. ENTIRE AGREEMENT. This Lease, together with its exhibits, contains all agreements of the parties to this Lease and supersedes any previous negotiations. There have been no representations made by the Landlord or any of its representatives or understandings made between the parties other than those set forth in this Lease and its exhibits. This Lease may not be modified except by a written instrument duly executed by the parties to this Lease.

37. EXAMINATION NOT OPTION. Submission of this Lease shall not be deemed to be a reservation of the Premises. Landlord shall not be bound by this Lease until it has received a copy of this Lease duly executed by Tenant and has delivered to Tenant a copy of this Lease duly executed by Landlord, and until such delivery Landlord reserves the right to exhibit and lease the Premises to other prospective tenants. Notwithstanding anything contained in this Lease to the contrary, Landlord may withhold delivery of possession of the Premises from Tenant until such time as Tenant has paid to Landlord any security deposit required by Article 4.15, the first month’s rent as set forth in Article 3 and any sum owed pursuant to this Lease.

38. RECORDATION. Tenant shall not record or register this Lease or a short form memorandum hereof without the prior written consent of Landlord, and then shall pay all charges and taxes incident such recording or registration.

39. PARKING.

39.1 During the initial Term of this Lease, Tenant agrees to lease from Landlord and Landlord agrees to lease to Tenant, the number and type of parking passes as set forth on the Reference Page of this Lease. This right to park in the Building’s parking facilities (the “Parking Facility”) shall be on an unreserved, nonexclusive, first come, first served basis, for passenger-size automobiles and is subject to the following terms and conditions:

39.1.1 Tenant shall pay to Landlord, or Landlord’s designated parking operator, the Building’s prevailing monthly parking charges, without deduction or offset, on the first day of each month during the Term of this Lease. The initial charges are specified on the Reference Page. Landlord will notify Tenant upon not less than thirty (30) days’ notice of any increases in the monthly parking charges prior to billing Tenant any increases. No deductions from the monthly charge shall be made for days on which the Parking Facility is not used by Tenant.

39.1.2 Tenant shall at all times abide by and shall cause each of Tenant’s employees, agents, customers, visitors, invitees, (but only while such visitors and invitees are on the Premises) licensees, contractors, assignees and subtenants (collectively, “Tenant’s Parties”) to abide by any rules and regulations (“Rules”) for use of the Parking Facility that Landlord or Landlord’s garage operator reasonably establishes from time to time, and otherwise agrees to use the Parking Facility in a safe and lawful manner. Landlord reserves the right to adopt, modify and enforce the Rules governing the use of the Parking Facility from time to time including any key-card, sticker or other identification or entrance system and hours of operation. Landlord may refuse to permit any person who violates such Rules to park in the Parking Facility, and any violation of the Rules shall subject the car to removal from the Parking Facility.

39.1.3 Unless specified to the contrary above, the parking spaces hereunder shall be provided on a non-designated “first-come, first-served” basis. Landlord reserves the right to assign specific spaces, and to reserve spaces for visitors, small cars, disabled persons or for other tenants or guests, and Tenant shall not park and shall not allow Tenant’s Parties to park in any such assigned or reserved spaces. Tenant may validate visitor parking by such method as Landlord may approve, at the validation rate from time to time generally applicable to visitor parking. Tenant acknowledges that the Parking Facility may be closed entirely or in part in order to make repairs or perform maintenance services, or to alter, modify, re-stripe or renovate the Parking Facility, or if required by casualty, strike, condemnation, act of God, governmental law or requirement or other reason beyond the operator’s reasonable control.

39.1.4 Tenant acknowledges that to the fullest extent permitted by law, Landlord shall have no liability for any damage to property or other items located in the parking areas of the Project (including without limitation, any loss or damage to tenant’s automobile or the contents thereof due to theft, vandalism or accident), nor for any personal injuries or death arising out of the use of the Parking Facility by Tenant or any Tenant’s Parties, whether or not such loss or damage results from Landlord’s active negligence or negligent omission. The limitation on Landlord’s liability under the preceding sentence shall not apply however to loss or damage arising directly from Landlord’s willful misconduct. Without limiting the foregoing, if Landlord arranges for the parking areas to be operated by an independent contractor not affiliated with Landlord, Tenant acknowledges that Landlord shall have no liability for claims arising through acts or omissions of such independent contractor. Except in instances involving gross negligence or willful misconduct, Tenant and Tenant’s Parties each hereby voluntarily releases, discharges, waives and relinquishes any and all actions or causes of action for personal injury or property damage

occurring to Tenant or any of Tenant’s Parties arising as a result of parking in the Parking Facility, or any activities incidental thereto, wherever or however the same may occur, and further agrees that Tenant will not prosecute any claim for personal injury or property damage against Landlord or any of its officers, agents, servants or employees for any said causes of action and in all events, Tenant agrees to look first to its insurance carrier and to require that Tenant’s Parties look first to their respective insurance carriers for payment of any losses sustained in connection with any use of the Parking Facility. Tenant hereby waives on behalf of its insurance carriers all rights of subrogation against Landlord or Landlord’s agents.

39.1.5 In the event any surcharge or regulatory fee is at any time imposed by any governmental authority with reference to parking, Tenant shall (commencing after two (2) weeks’ notice to Tenant) pay, per parking pass, such surcharge or regulatory fee to Landlord in advance on the first day of each calendar month concurrently with the month installment of rent due under this Lease. Landlord will enforce any surcharge or fee in an equitable manner amongst the Building tenants.

39.2 If Tenant violates any of the terms and conditions of this Article, the operator of the Parking Facility shall have the right to remove from the Parking Facility any vehicles hereunder which shall have been involved or shall have been owned or driven by parties involved in causing such violation, without liability therefore whatsoever. In addition, Landlord shall have the right to cancel Tenant’s right to use the Parking Facility pursuant to this Article upon thirty (30) days’ written notice, unless within such thirty (30) day period, Tenant cures such default. Such cancellation right shall be cumulative and in addition to any other rights or remedies available to Landlord at law or equity, or provided under this Lease.

40. ROOFTOP ANTENNA. Landlord agrees that, subject to availability of space, Tenant may install, at Tenant’s expense and for its own internal business use (and not for the purpose of granting access to others, whether or not for profit), a microwave, satellite or other antenna communications system on the roof of the Building at a location chosen by Landlord. so long as Tenant executes, and complies with all of the terms and conditions of, Landlord’s then standard form of license agreement (which may provide for the reimbursement of costs, but there shall be no additional rent or license fee). Without limiting the generality of the foregoing, the installation, size and location of such system must comply with all governmental requirements (local, state and federal). Prior to installation of such system, Tenant shall furnish plans and specifications for such system and its location and installation (which installation shall not involve any penetration of the roof) to Landlord for its approval, which approval shall not be unreasonably withheld or delayed. In addition, prior to installation of such system, Tenant shall obtain all necessary governmental permits and approvals and deliver copies thereof to Landlord. All costs related to such system shall be paid by Tenant, including all costs of installation, screening (if required by Landlord or any governmental entity), maintenance, repair, restoration and removal. If requested by Landlord, Tenant will, at Tenant’s expense, move the system to another location on the roof selected by Landlord and reasonably acceptable to Tenant. Tenant acknowledges that Landlord may also install or grant to others the right to install microwave, satellite or other antenna communications systems on the roof. Upon the expiration or sooner termination of the Term, Tenant shall, at Tenant’s sole cost, remove the antenna and all appurtenances and related equipment, and repair any damage caused by such removal. Tenant shall be responsible for any damage to the roof, or any impairment of any existing roof warranty, resulting from the installation, use, maintenance, operation or removal of the antenna and related equipment. Tenant shall be responsible for any damage to the roof, or any impairment of any existing roof warranty, resulting from the installation, use, maintenance, operation or removal of the antenna and related equipment. Tenant shall also be responsible for all cost and coordination of temporary removal or relocation of Tenant’s equipment to the extent required in connection with roof or Building maintenance or repairs. Tenant shall be responsible for any interference with any existing systems located at the Building caused by Tenant’s equipment.

41. LIMITATION OF LANDLORD’S LIABILITY. Redress for any claim against Landlord under this Lease shall be limited to and enforceable only against and to the extent of Landlord’s interest in the Building. The obligations of Landlord under this Lease are not intended to be and shall not be personally binding on, nor shall any resort be had to the private properties of, any of its or its investment manager’s trustees, directors, officers, partners, beneficiaries, members, stockholders, employees, or agents, and in no case shall Landlord be liable to Tenant hereunder for any lost profits, damage to business, or any form of special, indirect or consequential damages.

LANDLORD:

TENANT:

RREEF AMERICA REIT II CORP. PPP, a Maryland corporation

ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation

By:

/s/ ▇.▇. ▇▇▇▇▇▇

By:

/s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

Name:

▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇

Name:

▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

Title:

Vice President

Title:

C.E.O.

Dated:

3-18

, 2015

Dated:

, 2015

EXHIBIT A – FLOOR PLAN DEPICTING THE PREMISES


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▇▇▇▇▇▇▇ ▇-▇ – SITE PLAN


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EXHIBIT A-2 – LEGAL DESCRIPTION OF THE LOT


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EXHIBIT B – INITIAL ALTERATIONS


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SCHEDULE I

INSURANCE REQUIREMENTS

1. Tenant shall cause to be maintained for Landlord’s benefit insurance in an insurance company or companies which are “A” rated, Class VII or better in Best’s Key Rating Guide or such lesser standard as shall be acceptable to Landlord and authorized to transact business in the state in which the Building is located, protecting Landlord against liabilities arising out of the operations of subcontractors and sub-subcontractors as well as Tenant’s contractor (“Contractor”) with respect to all the Work, including at least and in amounts not less than:

1.1 Worker’s Compensation & Employers Liability: Statutory limits required by applicable Worker’s Compensation Law and $500,000 per occurrence for Employers Liability, without limitation including all liability arising under any applicable structural work act and any other statute for the protection of employees.

1.2 Commercial or Comprehensive Liability including completed operations coverage, contractual, personal injury $5,000,000 per occurrence Bodily Injury and Property Damage, $5,000,000 combined single limit.

1.3 Comprehensive Auto Liability including owned, non-owned, or hired vehicles coverage: $1,000,000 per occurrence Bodily Injury and Property Damage Liability (Combined Single Limit).

1.4 Builder’s Risk in an “all risk” form covering the Tenant Work against loss by fire and other casualty in an amount equal to the full insurable value of the Tenant Work.

2. Contractor shall either have the Landlord added as an additional named insured to the preceding Commercial or Comprehensive General Liability insurance policy or shall supply a separate Landlord’s Protective policy, with limits as specified, naming the Landlord as named insured, and said General Liability or Landlord’s Protective policy shall be maintained in force until the completion of the Work.

3. Each insurance policy shall be written to cover all claims arising out of occurrences taking place within the period of coverage; insurance written to cover only claims made within the policy period is not acceptable without the express advance written consent of Landlord. To the extent the policy is not a Landlord’s Protective policy, it shall be endorsed to indicate that it is primary as respects Landlord, not contributory with any other insurance available to the Landlord and not subject to reduction of coverage as to Landlord by reason of any claim asserted against Contractor other than in connection with the Work or by reason of any misstatement, act or omission of any party other than Landlord applying for or insured by such insurance.

4. Each insurance policy and any certificate furnished in lieu of a policy shall state that it will not be cancelled, reduced or materially changed without thirty (30) days’ prior written notice to Landlord, ten (10) days’ prior written notice for cancellation due to non-payment of premium. In the event Tenant fails to provide replacement coverage at least fifteen (15) days prior to the expiration of any policy of insurance, Landlord may at its option secure such insurance and Tenant shall reimburse Landlord for the cost thereof as additional rent; but Landlord shall not have any obligation to secure any such insurance.

5. If and so long as any monies shall be or be about to be owed to any lender upon the security of an interest in the Premises or the Building, at Landlord’s request any insurance required hereunder for Landlord’s protection shall also protect Landlord’s mortgagee and whenever Landlord is to be an additional insured, Landlord’s mortgagee shall also be so insured.

6. Each of the aforesaid insurance coverages shall be placed into effect before any of the Work is commenced and shall be maintained in force at all times while and for at least so long as any of the Work is carried on, including without limitation, any and all activities performed in fulfillment of any obligation of Contractor or any Subcontractor to correct defects in the Work or under any other warranty. Before commencing any of the Work, and as often thereafter as reasonably requested by Landlord, Tenant shall supply Landlord with either the policies themselves or certificates of insurance satisfactory to Landlord, evidencing compliance with all the foregoing requirements.


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No insurance policy purporting to insure Landlord or Landlord’s lender, as the case may be, shall without the prior written consent of said party be so written as to limit or condition any of the insurer’s obligations to said party with respect to any insured loss or liability by any condition or requirement that said party bear, assume or pay any portion of such loss or liability before the insurer’s obligation to said party shall come into effect.


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SCHEDULE II

STANDARDS FOR PLANS

1.	The space plan shall contain the following information:

(a) A layout of the Premises showing demising, corridor and exterior walls in relationship to the Building core. The locations of exterior window mullions, columns, stairways and other building features shall also be shown on the Space Plans.

(b) The location and composition of all walls. Non-standard improvements, such as walls requiring insulation, half walls, vinyl wall coverings or walls requiring special construction must be clearly noted on the Space Plans. Sectional details must be provided to adequately describe the construction of any non-standard wall.

(c) The location, size and swing of all doors. All doors shall conform with Landlord’s standard door specifications, unless otherwise noted on the Space Plans.

(d) A description of flooring materials.

(e) A reflected ceiling plan showing the layout of lighting fixtures, switches, and any other non-standard improvements which are to be located within the ceiling system.

(f) The location of all telephone and electrical outlets. Non-standard improvements, such as outlets to be located more than twelve (12) inches above the floor, dedicated circuit outlets or high amperage/voltage outlets must be clearly noted on the Space Plans.

2.	The working drawings shall be prepared at a scale of not less than 1/8”=1 foot and in accordance with Landlord’s design/build specification.

3.	All working drawings shall be prepared based upon the use of Landlord’s Building Standard Improvements as set forth in Schedule 1 attached hereto. All Improvements must conform to Landlord’s design/build specifications.

4.	The Plans shall contain sufficient notations, specifications and details to describe all Improvements, including but not limited to:

(a) Insulated walls, special wall coverings, graphics, special painting or special wall materials such as plate glass or glass block.

(b) Door dimensions, thickness, hardware or locks.

(d) Electrical outlets requiring a dedicated circuit, more than 120 volts or more than 15 amperes.

(e) Telephone outlets requiring more than 3/4 inch diameter conduit.

(f) Light fixtures, exhaust fans, ceiling heights, or ceiling designs using non-standard materials.


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(g) Any special conduits, receptacles or electrical devices necessary to serve communications equipment, computers or other facilities to be installed by Tenant.

(h) Any special requirements to accommodate handicapped employees of Tenant within the Premises.

(i) Any requirements for fire protection of computers, other equipment or materials installed by Tenant.

(j) Any requirements for special fire detection or life safety equipment not required by applicable building codes in effect at the time of construction.

(k) Any special reinforcing of the floor system which will be necessary to support computers, filing systems, equipment or furnishings having a load exceeding fifty pounds per square foot of floor area.

(l) Any special requirements for humidity control, temperature control, extra air-conditioning capacity, ventilation or heating which would not be provided by Landlord’s standard building systems. Such special requirements may arise as a result of Tenant’s desire to install a computer or other equipment which generates heat, food preparation facilities, bathrooms, laboratories, microfilm storage or other special facilities, equipment or products.

(m) Any private bathrooms, wet-bars, kitchens, vending machines or other installations requiring plumbing work or ventilation.

(n) Any cabinetry, wood paneling, reception desks, built-in shelving or furniture.

(o) Any improvement which will require modification of the Building’s structural, mechanical or electrical components.

(p) Sufficient details, specifications and other information as may be necessary for accurate pricing of any other non-standard Improvements


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EXHIBIT C – COMMENCEMENT DATE MEMORANDUM

attached to and made a part of Lease bearing the

Lease Reference Date of March 9, ▇▇▇▇ ▇▇▇▇▇▇▇

▇▇▇▇▇ ▇▇▇▇▇▇▇ REIT II CORP. PPP, as Landlord and

ALNYLAM PHARMACEUTICALS, INC., as Tenant

▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇

COMMENCEMENT DATE MEMORANDUM

THIS MEMORANDUM, made as of , 2015, by and between RREEF AMERICA REIT II CORP. PPP, a Maryland corporation (“Landlord”) and ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation(“Tenant”).

Recitals:

Landlord and Tenant are parties to that certain Lease, dated for reference March 9, 2015 (the “Lease”) for certain premises (the “Premises”) consisting of approximately 23,350 square feet at the building commonly known as ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇.

Tenant is in possession of the Premises and the Term of the Lease has commenced.

Landlord and Tenant desire to enter into this Memorandum confirming the Commencement Date, the Termination Date and other matters under the Lease.

NOW, THEREFORE, Landlord and Tenant agree as follows:

The actual Commencement Date is .

The actual Rent Commencement Date is .

The actual Termination Date is .

The schedule of the Annual Rent and the Monthly Installment of Rent set forth on the Reference Pages is deleted in its entirety, and the following is substituted therefor:

[insert rent schedule]


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Capitalized terms not defined herein shall have the same meaning as set forth in the Lease.

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the date and year first above written.

LANDLORD:

TENANT:

RREEF AMERICA REIT II CORP. PPP, a Maryland corporation

ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation

By:

/s/ ▇.▇. ▇▇▇▇▇▇

By:

/s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

Name:

▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇

Name:

▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

Title:

Vice President

Title:

C.E.O.

Dated:

3-18

, 2015

Dated:

, 2015


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EXHIBIT D – RULES AND REGULATIONS

attached to and made a part of Lease bearing the

Lease Reference Date of March 9, ▇▇▇▇ ▇▇▇▇▇▇▇

▇▇▇▇▇ ▇▇▇▇▇▇▇ REIT II CORP. PPP, as Landlord and

ALNYLAM PHARMACEUTICALS, INC., as Tenant

▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇

1. No sign, placard, picture, advertisement, name or notice shall be installed or displayed on any part of the outside or inside of the Building without the prior written consent of the Landlord. Landlord shall have the right to remove, at Tenant’s expense and without notice, any sign installed or displayed in violation of this rule. All approved signs or lettering on doors and walls shall be printed, painted, affixed or inscribed at Tenant’s expense by a vendor designated or approved by Landlord. In addition, Landlord reserves the right to change from time to time the format of the signs or lettering and to require previously approved signs or lettering to be appropriately altered. Tenant shall have the right, at Landlord’s expense, to have Building-standard signage on the lobby directory and on Tenant’s floor.

2. If Landlord reasonably objects in writing to any curtains, blinds, shades or screens attached to or hung in or used in connection with any window or door of the Premises because such window treatments materially alter or affect the Building’s character or appearance, Tenant shall immediately discontinue such use. No awning shall be permitted on any part of the Premises. Tenant shall not place anything or allow anything to be placed against or near any glass partitions or doors or windows which may appear unsightly, in the reasonable opinion of Landlord, from outside the Premises.

3. Tenant shall not obstruct any sidewalks, halls, passages, exits, entrances, elevators, or stairways of the Building. No tenant and no employee or invitee of any tenant shall go upon the roof of the Building.

4. Any directory of the Building, if provided, will be exclusively for the display of the name and location of tenants only and Landlord reserves the right to exclude any other names.

5. All cleaning and janitorial services for the Building and the Premises shall be provided exclusively through Landlord. Tenant shall not cause any unnecessary labor by carelessness or indifference to the good order and cleanliness of the Premises. Except for instances involving gross negligence or willful misconduct, Landlord shall not in any way be responsible to any Tenant for any loss of property on the Premises, or for any damage to any Tenant’s property by the janitor or any other employee or any other person.

6. The toilet rooms, toilets, urinals, wash bowls and other apparatus shall not be used for any purpose other than that for which they were constructed. No foreign substance of any kind whatsoever shall be thrown into any of them, and the expense of any breakage, stoppage or damage resulting from the violation of this rule shall be borne by the Tenant who, or whose employees or invitees, shall have caused it.

7. Tenant shall store all its trash and garbage within its Premises. Tenant shall not place in any trash box or receptacle any material which cannot be disposed of in the ordinary and customary manner of trash and garbage disposal. All garbage and refuse disposal shall be made in accordance with directions issued from time to time by Landlord. Tenant will comply with any and all reasonable recycling procedures designated by Landlord.

8. Landlord will furnish Tenant two (2) keys free of charge to each door in the Premises that has a passage way lock. Landlord may charge Tenant a reasonable amount for any additional keys, and Tenant shall not make or have made additional keys on its own. Tenant shall not alter any lock or install a new or additional lock or bolt on any door of its Premises. Tenant, upon the termination of its tenancy, shall deliver to Landlord the keys of all doors which have been furnished to Tenant, and in the event of loss of any keys so furnished, shall pay Landlord therefor.


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9. If Tenant requires telephone, data, burglar alarm or similar service, the cost of purchasing, installing and maintaining such service shall be borne solely by Tenant. No boring or cutting for wires will be allowed without the prior written consent of Landlord.

10. No equipment, materials, furniture, packages, bulk supplies, merchandise or other property will be received in the Building or carried in the elevators except between such hours and in such elevators as may be reasonably designated by Landlord in writing. The persons employed to move such equipment or materials in or out of the Building must be reasonably acceptable to Landlord.

11. Tenant shall not place a load upon any floor which exceeds the load per square foot which such floor was designed to carry and which is allowed by applicable building codes. Heavy objects shall stand on such platforms as determined by Landlord to be necessary to properly distribute the weight. Business machines and mechanical equipment belonging to Tenant which cause noise or vibration that may be transmitted to the structure of the Building or to any space in the Building to such a degree as to be reasonably objectionable to Landlord or to any tenants shall be placed and maintained by Tenant, at Tenant’s expense, on vibration eliminators or other devices sufficient to eliminate the noise or vibration. Landlord will not be responsible for loss of or damage to any such equipment or other property from any cause, and all damage done to the Building by maintaining or moving such equipment or other property shall be repaired at the expense of Tenant.

12. Landlord shall in all cases retain the right to control and prevent access to the Building of all persons whose presence in the judgment of Landlord would be prejudicial to the safety, character, reputation or interests of the Building and its tenants, provided that nothing contained in this rule shall be construed to prevent such access to persons with whom any tenant normally deals in the ordinary course of its business, unless such persons are engaged in illegal activities. Landlord reserves the right to exclude from the Building between the hours of 6 p.m. and 7 a.m. the following day, or such other hours as may be established from time to time by Landlord, and on Sundays and legal holidays, any person unless that person is known to the person or employee in charge of the Building and has a pass or is properly identified. Tenant shall be responsible for all persons for whom it requests passes and shall be liable to Landlord for all acts of such persons. Except in instances involving gross negligence of willful misconduct, Landlord shall not be liable for damages for any error with regard to the admission to or exclusion from the Building of any person.

13. Tenant shall not use any method of heating or air conditioning other than that supplied or approved in writing by Landlord.

14. Tenant shall not knowingly waste electricity, water or air conditioning. Tenant shall keep corridor doors closed. Tenant shall close and lock the doors of its Premises and entirely shut off all water faucets or other water apparatus and electricity, gas or air outlets before Tenant and its employees leave the Premises. Tenant shall be responsible for any damage or injuries sustained by other tenants or occupants of the Building or by Landlord to the extent due to Tenant’s noncompliance with this rule.

15. Tenant shall not install any radio or television antenna, satellite dish, loudspeaker or other device on the roof or exterior walls of the Building without Landlord’s prior written consent, which consent may be withheld in Landlord’s sole discretion, and which consent may in any event be conditioned upon Tenant’s execution of Landlord’s standard form of license agreement. Tenant shall be responsible for any interference caused by such installation.

16. Tenant shall not ▇▇▇▇, drive nails, screw or drill into the partitions, woodwork, plaster, or drywall (except for pictures, monitors, tackboards and similar office uses) or in any way deface the Premises. Tenant shall not cut or bore holes for wires. Tenant shall not affix any floor covering to the floor of the Premises in any manner except as approved by Landlord. Tenant shall repair any damage resulting from noncompliance with this rule.


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17. Tenant shall not install, maintain or operate upon the Premises any vending machine without Landlord’s prior written consent, except that Tenant may install food and drink vending machines solely for the convenience of its employees.

18. No cooking shall be done or permitted by any tenant on the Premises, except that Underwriters’ Laboratory approved microwave ovens or equipment for brewing coffee, tea, hot chocolate and similar beverages shall be permitted provided that such equipment and use is in accordance with all applicable federal, state and city laws, codes, ordinances, rules and regulations.

19. Tenant shall not use in any space or in the public halls of the Building any hand trucks except those equipped with the rubber tires and side guards or such other material-handling equipment as Landlord may approve. Tenant shall not bring any other vehicles of any kind into the Building.

20. Tenant shall not permit any motor vehicles to be washed or mechanical work or maintenance of motor vehicles to be performed in any parking lot.

21. Tenant shall not use the name of the Building or any photograph or likeness of the Building in connection with or in promoting or advertising Tenant’s business, except that Tenant may include the Building name in Tenant’s address and a photograph of the Building for purposes of directing visitors. Landlord shall have the right, exercisable without notice and without liability to any tenant, to change the name and address of the Building.

22. Tenant requests for services must be submitted to the Building office by an authorized individual. Employees of Landlord shall not perform any work or do anything outside of their regular duties unless under special instruction from Landlord.

23. Tenant shall not permit smoking or carrying of lighted cigarettes or cigars other than in areas designated by Landlord as smoking areas.

24. Canvassing, soliciting, distribution of handbills or any other written material in the Building is prohibited and each tenant shall cooperate to prevent the same. No tenant shall solicit business from other tenants or permit the sale of any good or merchandise in the Building without the written consent of Landlord.

25. Tenant shall not permit any animals other than service animals, e.g. seeing-eye dogs, to be brought or kept in or about the Premises or any common area of the Building.

26. These Rules and Regulations are in addition to, and shall not be construed to in any way modify or amend, in whole or in part, the terms, covenants, agreements and conditions of any lease of any premises in the Building. In the event of a conflict between these Rules and Regulations and the Lease, the terms of the Lease shall control. Landlord may waive any one or more of these Rules and Regulations for the benefit of any particular tenant or tenants, but no such waiver by Landlord shall be construed as a waiver of such Rules and Regulations in favor of any other tenant or tenants, nor prevent Landlord from thereafter enforcing any such Rules and Regulations against any or all of the tenants of the Building. Notwithstanding the foregoing, Landlord shall use commercially reasonable efforts to enforce these rules uniformly against all tenants in the Building.

27. Landlord reserves the right to make such other and reasonable rules and regulations as in its judgment may from time to time be needed for safety and security, for care and cleanliness of the Building, and for the preservation of good order in and about the Building. Tenant agrees to abide by all such rules and regulations herein stated and any additional rules and regulations which are adopted. Tenant shall be responsible for the observance of all of the foregoing rules by Tenant’s employees, agents, clients, customers, invitees and guests.


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EXHIBIT E – ELECTRICITY COSTS

attached to and made a part of Lease bearing the

Lease Reference Date of March 9, ▇▇▇▇ ▇▇▇▇▇▇▇

▇▇▇▇▇ ▇▇▇▇▇▇▇ REIT II CORP. PPP, as Landlord and

ALNYLAM PHARMACEUTICALS, INC., as Tenant

▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇

PROCEDURE FOR ALLOCATION OF COSTS OF ELECTRIC POWER USAGE BY TENANTS

1. Main electric service to the Building will be provided by the local utility company to a single main meter. All charges by the utility will be read from this meter and billed to and paid by Landlord at rates established by the utility company; provided however, Landlord will use commercially reasonable efforts to obtain electrical service as the lowest available price.

2. In order to allocate charges for electric service fairly among tenants in relation to the relative amounts of electricity used by each tenant, additional meters (known as “check meters”) will be installed by Landlord for each tenant to measure all electricity provided for lights and power to that tenant. This shall not, however, include the following, which shall be wired from the main Building service and not through the check meters: stairwell and emergency lights; elevators; heat pumps and HVAC in the Building; exterior lighting; and all main Building mechanical systems (common areas on each floor, including the elevator lobby, corridors, and bathrooms, will have service through the check meters on each floor) (the “Basic Building Electricity”) and which shall be separately metered.

3. Additional check meters may be installed by Landlord where necessary to assure measurement of all electric service to tenant areas (e.g., in the case of separate dedicated circuits to computer rooms, cafeterias, or other special purpose facilities). Ground floor tenant space will be check-metered if it is not separately metered. In addition, further modification to the number and location of check meters may be made by Landlord if required to improve the quality of information obtained thereby.

4. Landlord will cause the check meters to be read monthly by its employees and will perform an analysis of the information for the purpose of determining an equitable allocation of the costs of electric service among the tenants in the Building in relation to the respective amounts of usage of electricity by those tenants.

5. Each tenant’s allocable share (“Tenant’s Allocable Electricity Cost”), shall be determined by Landlord on the following basis:

(a)

The total kilowatt hour usage for the period under evaluation shall be established for each check meter and also for the Building as a whole by a reading of the main Building meter for that period.

(b)

The cost of the total amount of electricity supplied for usage by tenants during the period (exclusive of the Base Building Electricity) (herein called “Tenant Electricity”) shall be determined by multiplying the total cost of electricity as invoiced by the utility company for the same period by a fraction, the numerator of which is the total amount of kilowatt hour usage as measured by all of the Tenant Electricity check meters in the Building and the denominator of which is the total amount of kilowatt hour usage for the Building as measured by the main Building electric meter.

(c)

Tenant’s Allocable Electricity Cost for the period shall be determined by multiplying the total costs of Tenant Electricity by a fraction, the numerator of which is the kilowatt hour usage of Tenant Electricity by said tenant (calculated as the sum of kilowatt hour usage during the period measured by all check meters serving its premises) and the denominator of which is the total kilowatt hour usage of Tenant Electricity for the same period.


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(d)

Where part or all of the rentable area on a floor has been occupied by a tenant for less than all of the period for which said Tenant’s Allocable Electricity Cost is being calculated, appropriate and equitable modifications shall be made to the allocation formula so that each tenant’s allocable share of costs equitably reflects its period of occupancy, provided that in no event shall the total of all costs as allocated to tenants be less than the total cost of Tenant Electricity for said period.

(e)

If and as necessary, Landlord will take commercially reasonable efforts to adjust Tenant’s Allocable Electricity Cost as necessary to account for any tenant in the Building using a disproportionate amount of the available supply of electricity.

6. All costs of Base Building Electricity to Landlord shall be treated as part of the Expenses of the Building for purposes of determining the allocation of those costs.


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FIRST AMENDMENT TO LEASE

THIS FIRST AMENDMENT TO LEASE, dated as of April 16, 2015 (this “Amendment”), between RREEF AMERICA REIT II CORP. PPP, a Maryland corporation (“Landlord”), and ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation (“Tenant”), for certain premises located in the building commonly known as ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ (the “Building”).

RECITALS:

A. Landlord and Tenant entered into that certain Lease dated for reference March 9, 2015 (as amended, the “Lease”) for approximately 23,350 rentable square feet on the tenth floor of the Building (the “Premises”).

B. Simultaneously with the execution and delivery of this Amendment, Landlord and Tenant are also entering into a separate lease (the “Other Lease”) for approximately 48,599 rentable square feet on the 12th, 13th and 16th floors of the Building.

C. The Other Lease contains an extension option, and Landlord and Tenant have agreed to add a parallel extension option to the Lease.

D. All terms, covenants and conditions contained in this Amendment shall have the same meaning as in the Lease, and, shall govern should a conflict exist with previous terms and conditions.

AGREEMENT:

NOW, THEREFORE, in consideration of the foregoing recitals and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Landlord and Tenant hereby agree as follows:

1. Extension Option. Tenant shall, provided the Lease is in full force and effect and Tenant is not in default under any of the other terms and conditions of the Lease at the time of notification or commencement, have one (1) option to extend the Term of this Lease for a term of five (5) years, for the portion of the Premises being leased by Tenant as of the date the extended term is to commence, on the same terms and conditions set forth in the Lease, except as modified by the terms, covenants and conditions as set forth below:

(a) If Tenant elects to exercise said option, then Tenant shall provide Landlord with written notice no earlier than the date which is twelve (12) months prior to the expiration of the then current term of the Lease but no later than the date which is nine (9) months prior to the expiration of the then current term of this Lease. If Tenant fails to provide such notice, Tenant shall have no further or additional right to extend or renew the term of the Lease.

(b) The Annual Rent and Monthly Installment in effect at the expiration of the then current term of the Lease shall be increased to reflect the current fair market rental for comparable space in the Building and in other similar buildings in the same rental market as of

the date the extension term is to commence, taking into account the specific provisions of the Lease which will remain constant. Landlord shall advise Tenant of the new Annual Rent and Monthly Installment for the Premises no later than thirty (30) days after receipt of Tenant’s written request therefor. Said request shall be made no earlier than thirty (30) days prior to the first date on which Tenant may exercise its option under this Paragraph. Said notification of the new Annual Rent may include a provision for its escalation to provide for a change in fair market rental between the time of notification and the commencement of the extension term. If Tenant and Landlord are unable to agree on a mutually acceptable rental rate not later than sixty (60) days prior to the expiration of the then current term, then Landlord and Tenant shall each appoint a qualified MAI appraiser doing business in the area, in turn those two independent MAI appraisers shall appoint a third MAI appraiser and the majority shall decide upon the fair market rental for the Premises as of the expiration of the then current term. Landlord and Tenant shall equally share in the expense of this appraisal except that in the event the Annual Rent and Monthly Installment is found to be within ten percent (10%) of the original rate quoted by Landlord, then Tenant shall bear the full cost of all the appraisal process. In no event shall the Annual Rent and Monthly Installment for any option period be less than the Annual Rent and Monthly Installment in the preceding period.

(c) This option is not transferable; the parties hereto acknowledge and agree that they intend that the aforesaid option to extend this Lease shall be “personal” to Tenant as set forth above and that in no event will any assignee or sublessee have any rights to exercise the aforesaid option to extend.

2. TI Allowance. Paragraph 3.4 of Exhibit B to the Lease is hereby amended to change the TI Allowance from $280,200.00 ($12.00 psf) to $373,600.00 ($16.00 psf).

3. Cross-Default. Landlord and Tenant hereby acknowledge and agree that (i) an Event of Default under the Lease shall constitute an Event of Default under the Other Lease, and (ii) an Event of Default under the Other Lease shall constitute an Event of Default under the Lease.

4. Brokers. Landlord and Tenant each (i) represents and warrants to the other that it has not dealt with any broker or finder in connection with this Amendment other than ▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇▇▇ of Massachusetts, Inc., for Landlord, and Transwestern/RBJ, for Tenant, whose commissions, if any, shall be paid by Landlord pursuant to separate agreements; and (ii) agrees to defend, indemnify and hold the other harmless from and against any losses, damages, costs or expenses (including reasonable attorneys’ fees) incurred by such other party due to a breach of the foregoing warranty by the indemnifying party.

5. Incorporation. Except as modified herein, all other terms and conditions of the Lease shall continue in full force and effect and Tenant hereby ratifies and confirms its obligations thereunder. Tenant acknowledges that as of the date of the Amendment, Tenant (i) is not in default under the terms of the Lease; (ii) has no defense, set off or counterclaim to the enforcement by Landlord of the terms of the Lease; and (iii) is not aware of any action or inaction by Landlord that would constitute a default by Landlord under the Lease.

6. Tenant’s Authority. If Tenant signs as a corporation, Tenant represents and warrants that Tenant has been and is qualified to do business in the state in which the Building is located, that the corporation has full right and authority to enter into this Amendment, and that all persons signing on behalf of the corporation were authorized to do so by appropriate corporate actions. If Tenant signs as a partnership, trust or other legal entity, each of the persons executing this Amendment on behalf of Tenant represents and warrants that Tenant has complied with all applicable laws, rules and governmental regulations relative to its right to do business in the state and that such entity on behalf of the Tenant was authorized to do so by any and all appropriate partnership, trust or other actions. Tenant agrees to furnish promptly upon request a corporate resolution, proof of due authorization by partners, or other appropriate documentation evidencing the due authorization of Tenant to enter into this Amendment.

7. Limitation of Landlord Liability. Redress for any claim against Landlord under this Amendment or the Lease shall be limited to and enforceable only against and to the extent of Landlord’s interest in the Building. The obligations of Landlord under this Amendment and Lease are not intended to be and shall not be personally binding on, nor shall any resort be had to the private properties of, any of its or its investment manager’s trustees, directors, officers, partners, beneficiaries, members, stockholders, employees, or agents, and in no case shall Landlord be liable to Tenant hereunder for any lost profits, damage to business, or any form of special, indirect or consequential damages.

IN WITNESS WHEREOF, Landlord and Tenant have executed this Amendment as of the day and year first written above.

LANDLORD:

TENANT:

RREEF AMERICA REIT II CORP. PPP, a Maryland corporation

ALNYLAM PHARMACEUTICALS, INC., a Delaware corporation

By:

/s/ ▇.▇. ▇▇▇▇▇▇

By:

/s/ ▇▇▇▇▇▇▇ ▇▇▇▇▇

Name:

▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇

Name:

▇▇▇▇▇▇▇ ▇▇▇▇▇

Title:

Vice President

Title:

Vice President of Finance

Dated:

May 5

, 2015

Dated:

, 2015

LEASE RREEF AMERICA REIT II CORP. PPP, Landlord, and ALNYLAM PHARMACEUTICALS, INC., Tenant Riverfront Office Park Cambridge, Massachusetts

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