Base Rent. Tenant shall continue paying Base Rent with respect to the Original Premises as provided for in the Lease through June 30, 2016. Commencing on the Expansion Premises Commencement Date, Tenant shall pay Base Rent for the Expansion Premises at the same Base Rent per rentable square foot that Tenant is then paying for the Original Premises. Commencing on July 1, 2016, Tenant shall commence paying Base Rent with respect to the entire Premises (the Original Premises and the Expansion Premises) in the amount of $3.25 per rentable square foot of the entire Premises per month. Base Rent for the Premises shall be increased on July 1, 2017, and on each subsequent July 1st during the Base Term (each, an “Premises Adjustment Date”) by multiplying the Base Rent payable with respect to the Premises immediately before such Premises Adjustment Date by the Rent Adjustment Percentage and adding the resulting amount to the Base Rent payable with respect to the Premises immediately before such Premises Adjustment Date.

Base Rent. From and after the Expansion Date, Base Rent with respect to the Premises, including the Expansion Space, shall be as follows:

Tenant shall pay all Base Rent and all other amounts payable under the Lease solely for the Expansion Premises and shall perform all other obligations of Tenant under the Lease with respect to the Expansion Premises until the later of # the Termination Date (as herein defined), and # upon completion of Tenant’s Expansion Premises Surrender Obligations (as defined herein). Base Rent for the Expansion Premises shall be payable in the amounts set forth in [Section 3(a)] of the Second Amendment.

The Base Rent payable under [Section 5.02] of the Lease for the Premises (the Existing Premises and the Expansion Premises) shall be as follows:

BASE RENT. Tenant shall pay, without prior notice or demand, to Landlord or Landlord's agent at the management office of the Project, or at such other place as Landlord may from time to time designate in writing, by a check, wire transfer, ACH or other electronic means acceptable to Landlord, for currency which, at the time of payment, is legal tender for private or public debts in the United States of America, base rent ("Base Rent XE "Base Rent" ") as set forth in Section 4 of the Summary, payable in equal monthly installments as set forth in Section 4 of the Summary in advance on or before the first day of each and every calendar month during the Lease Term, without any setoff or deduction whatsoever, except to the extent expressly provided otherwise in this Lease. The Base Rent for the first full month of the Lease Term shall be paid at the time of Tenant's execution of this Lease. If any Rent (hereinafter defined) payment date (including the Lease Commencement Date) falls on a day of the month other than the first day of such month or if any payment of Rent is for a period which is shorter than one month, the Rent for any fractional month shall accrue on a daily basis for the period from the date such payment is due to the end of such calendar month or to the end of the Lease Term at a rate per day which is equal to 1/365 of the applicable annual Rent. All other payments or adjustments required to be made under the terms of this Lease that require proration on a time basis shall be prorated on the same basis.

Base Rent. Simultaneously with Subtenant’s execution of the Sublease, Subtenant shall pay to Sublandlord via wire or cashier’s check one (1) month’s Base Rent in the amount of one hundred twenty-nine thousand two hundred eighty-one 40/100 dollars ($129,281.40). Beginning Month Thirteen # of the Term, there will be two and fifty hundredths percent (2.50%) annual increases of the Base Rent as set forth in the Rent Schedule herein. If the Commencement Date is not the first of a month, on the Commencement date Subtenant shall pay, via wire of cashier’s check, Base Rent in a pro-rated amount for the partial month between the Commencement Date and the last day of the month. After the Commencement Date, Base Rent shall be paid via wire or via cashier’s check, monthly on the first of the month starting on the first day of the second full month.

Base Rent. For the first year of this Lease, Tenant shall pay to Landlord in good funds representing lawful currency of the United States for the payment of debts monthly in advance on the first day of each month unless a different period of time and method of payment is hereinafter provided Base Rent of ​ per month. The first twelve-month period in which rent is herein payable and each twelve-month period thereafter is hereinafter referred to as a “Lease Year”. The first Lease Year shall commence on the first day of the term of this Lease, ​, and shall end on ​. For the second Lease Year and for each Lease Year thereafter, the monthly Base Rent shall be adjusted so that it is equal to the monthly Base Rent in effect at the end of the immediately preceding Lease Year multiplied by a fraction, the numerator of which shall be the Consumer Price Index (CPI-U) (1982-1984 = 100) for the immediately preceding December, and the denominator of which shall be the Consumer Price Index for the month of December immediately preceding the beginning of the prior Lease Year. As used herein, the Consumer Price Index means the Consumer Price Index – All Cities Average Urban Wage Earners as published by the Bureau of Labor Statistics of the Department of Labor of the United States, or if no longer published, that index as determined by Landlord which most closely reflects the components of the Consumer Price Index (CPI-U). The Base Rent, as adjusted, shall remain in effect until the next adjustment period and shall be paid in twelve equal monthly installments. In no event shall the monthly Base Rent, as adjusted, be less than the monthly Base Rent for the period immediately prior to such adjustment period. In the event that the amount of such adjustment cannot be calculated prior to the effective date thereof, the monthly Base Rent for the period prior to the effective date of such adjustment shall continue to be paid by Tenant. As soon as Tenant shall be notified of the amount of the adjustment, Tenant shall, within thirty (30) days, pay to the Landlord the difference between the monthly Base Rent, as adjusted, for all monthly periods occurring in whole or in part after the date such adjustment was to be effective and the monthly Base Rent actually paid. Thereafter the monthly Base Rent, as adjusted, shall be payable by the Tenant as herein provided.

If the fair market rent is not established prior to the commencement of the renewal term, then Tenant shall pay fixed annual rent and payments for Operating Expenses and Taxes for the 14th Floor Expansion Space at the rate that was in effect for the 14th Floor Expansion Space immediately prior to the commencement of the renewal term and, as soon as the fair market rent is determined for the 14th Floor Expansion Space, Tenant shall pay to Landlord within ten (10) days of written demand any deficiency in the amount paid by Tenant during such period, or, if Tenant paid excess rent during such period, Landlord shall credit such excess payments to the rent amounts next due.

From and after the Effective Date, all references in the Lease to the “Premises” shall be deemed to mean the Existing Premises plus the Expansion Premises.

The “Expansion Premises Commencement Date” shall be the date Landlord Delivers the Expansion Premises to Tenant. Upon the request of Landlord, Tenant shall execute and deliver a written acknowledgment of the Expansion Premises Commencement Date and the expiration date of the Lease in substantially the form of the “Acknowledgement of Commencement Date” attached to the Lease as [Exhibit D]; provided, however, Tenant’s failure to execute and deliver such acknowledgment shall not affect Landlord’s rights hereunder.

In any case where Landlord exercises its right of termination as provided in [Section 2.2] hereof, or temporary repossession as provided in [Section 2.3] hereof, as to a portion of the Premises, the Base Rent after the effective date of such termination shall be the product of # the Base Rent immediately prior to the withdrawal or temporary repossession and # a fraction the numerator of which shall be the number of usable parking spaces located on the Premises immediately after the effective date of the partial termination or temporary repossession and the denominator shall be the number of parking spaces located on the Premises immediately before such partial termination or temporary repossession. A “usable” parking space is a space that continues to be reasonably usable in Tenant’s ordinary course of business, as opposed to a space that, for example, but without limitation, is functionally cut off and not reasonably usable, whether due to the particular configuration of the space re-taken by Landlord, or otherwise. Further, in the case of the termination of this Lease as to only a portion of a Particular Parking Lot, it shall nonetheless be deemed that no Base Rent is due as to the remainder of such Particular Parking Lot if “reasonably comparable” (as defined in [Section 2.3]) access does not continue to exist to the same public streets that existed prior to such partial termination. Such Base Rent as so adjusted to reflect a permanent termination of a portion of the Premises shall remain in effect (but, to be clear, shall still be subject to the annual increases discussed in [Section 3.2]) until the end of the Term of this Lease. Such Base Rent as so adjusted to reflect a temporary repossession shall remain in effect (but, to be clear, shall still be subject to annual increases discussed in [Section 3.2]) until the portion of the Premises so repossessed is returned to Tenant, at which time the reduction in Base Rent due to such temporary repossession shall end. For avoidance of doubt, when the temporary repossession ends, the Base Rent shall return to being, on a going forward basis, what it would have been had the temporary repossession never occurred. Landlord and Tenant agree that upon return of the Lot 20 Construction Area, the Base Rent shall be increased by ​ per month, adjusted for any increase as required by [Section 3.2] hereof

Rent. All Rent and other payments required to be made by Tenant to Landlord hereunder shall be payable to Landlord at Landlord’s Remittance Address set forth in the Basic Lease Information, or at such other address as Landlord may specify from time to time by written notice delivered in accordance herewith. Tenant’s obligation to pay Rent and any other amounts to Landlord under the terms of this Lease shall not be deemed satisfied until such Rent and other amounts have been actually received by Landlord.

RENT. LESSEE shall pay LESSOR base rent of one hundred five thousand nine hundred ninety nine (105,999) U.S. dollars per year, drawn on a U.S. bank, in monthly installments of $8,833.25 on or before the first day of each calendar month, without offset or deduction. One monthly rental payment, plus an appropriate traction of a monthly payment for any portion of a month at the commencement of the lease term, shall be made upon LESSEE’S execution of this lease. All payments shall be made to LESSOR at 200 West Cummings Park, Woburn, Massachusetts 01801, or at such other place designated in writing by LESSOR. If the “Cost of Living” has increased as shown by the Consumer Price Index (Boston, Massachusetts, all items, all urban consumers), U.S. Bureau of Labor Statistics (“Index”), then base rent due during each calendar year of this lease and all extensions thereof shall be adjusted in proportion to any increase in the Index. The base month from which to determine the amount of each increase shall be January 2016, which figure shall be compared with the figure for November 2016, and each November thereafter to determine the increase (if any) in base rent to be paid during the following calendar year commencing each January 1.

Notwithstanding anything to the contrary contained in this Lease, Tenant’s Share of each earthquake deductible or occurrence of uninsured earthquake damage affecting to Premises shall not exceed ​ per rentable square foot of the Premises with respect to which Tenant is then obligated to pay Base Rent under this Lease (the “Initial Cap”). On each annual anniversary of the Commencement Date, the Initial Cap shall be reduced by ​ per rentable square foot of the Premises with respect to which Tenant is then obligated to pay Base Rent under this Lease. Following earthquake damage to the Project, Tenant shall pay Tenant’s Share of any such deductible or uninsured damage in equal monthly installments (not to exceed the Initial Cap) amortized over the remaining balance of the Base Term of the Lease.

*Note: During the first six (6) full months of the Lease Term, Tenant shall pay Base Rent for the Premises as if the Premises contained only 43,225 RSF but shall be entitled to use the entire Premises during such period. Tenant shall be required to pay Tenant's Share of Direct Expenses attributable to such period for the entire Premises without reduction, as well as for all utilities and other services.

The Rent Commencement Date for the Expansion Space is November 22. 2020. subject to extension as provided above in Paragraph 3. Beginning on the Rent Commencement Dale, Minimum Rent and all additional rent will be calculated using a Floor Area of 50,148 rentable square feet.

Notwithstanding anything to the contrary contained in the original Lease or this First Amendment, commencing on July 1, 2016, Tenant’s Share of each earthquake deductible or occurrence of uninsured earthquake damage affecting to Premises shall be equal to $4.50 per rentable square foot of the Premises with respect to which Tenant is then obligated to pay Base Rent under the Lease (the “Earthquake Cap”). On each Original Premises Adjustment Date, the Earthquake Cap shall be reduced by $1.50 per rentable square foot of the Premises with respect to which Tenant is then obligated to pay Base Rent under the Lease. Following earthquake damage to the Project, Tenant shall pay Tenant’s Share of any such deductible or uninsured damage in equal monthly installments (not to exceed the Earthquake Cap) amortized over the