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.

Plus: Property Rent Expense (base rent + any % rent)

All monthly installments of Base Rent, all Additional Rent and all monthly installments of estimated Additional Rent have been paid when due through . The current monthly installment of Base Rent is $ .

Tenant shall have until six (6) months following the Term Commencement Date (the “TI Deadline”), to submit Fund Requests (as defined in the Work Letter) to Landlord for disbursement of the unused portion of the TI Allowance, after which date Landlord’s obligation to fund any such costs for which Tenant has not submitted a Fund Request to Landlord shall expire. Base Rent shall be increased to include the amount of the Additional TI Allowance disbursed by Landlord in accordance with this Lease amortized over the portion of the initial Term occurring after the expiration of the Abatement Period (as defined below) at a rate of eight percent (8.00%) annually. The amount by which Base Rent shall be increased shall be determined as of the Term Commencement Date and Base Rent shall be increased accordingly and the payments of such increased Base Rent shall commence after expiration of the Abatement Period. If such determination of the increase in Base Rent as of the Term Commencement Date does not reflect use by Tenant of all of the Additional TI Allowance, then it shall be determined again as of the TI Deadline, with Tenant paying (on the next succeeding day that Base Rent is due under this Lease (the “TI True-Up Date”)) any underpayment of the further adjusted Base Rent for the period beginning on the day after the Abatement Period expires and ending on the TI True-Up Date. For purposes of clarification, the annual upward adjustments of Base Rent described in Section 2.3 shall apply to any increase in Base Rent arising from any disbursement of the Additional TI Allowance. Landlord shall not be obligated to expend any portion of the Additional TI Allowance unless and until Landlord shall have received from Tenant a letter in the form attached as [Exhibit D] hereto executed by an authorized officer of Tenant.

The parties acknowledge that ​ may be obligated to make one or more payments of monthly Base Rent prior to final determination of the actual Total Development Costs and, therefore, the actual initial monthly/annual Base Rent in accordance with this Exhibit J. ​ shall make any such monthly Base Rent payment based upon the FTDCB Preliminary Base Rent, and any shortfall due to ​ as a result of the determination of the actual initial Base Rent pursuant to this Exhibit J shall be paid to ​ with ​’s next payment of Base Rent following such determination, and any refund due to ​ as a result of the determination of the actual initial Base Rent pursuant to this Exhibit J shall be deducted by ​ from ​’s next payment of Base Rent following such determination.

Base Rent and Additional Rent, as defined in Paragraph 4.B below, with the exception of the initial Base Rent as provided in Paragraph 4.C below, shall be paid on or before the first (1st) day of each month. Base Rent and Additional Rent shall be payable without notice or demand and without any deduction, offset, or abatement, in lawful money of the United States of America. Base Rent and Additional Rent shall be paid directly to Sublessor at the applicable address set forth below Sublessor’s signature to this Sublease or such other address as may be designated in writing by Sublessor. Base Rent and Additional Rent for any period during the Term hereof which is for less than one (1) month of the Term shall be a pro rata portion of the monthly installment based on a thirty (30) day month. If an increase in Base Rent becomes effective on a date other than the first day of a calendar month, the Base Rent for that month shall be the sum of the two applicable rates, each prorated for the portion of the month during which the rate is in effect.

The initial monthly Base Rent shall be equal to one-twelfth (1/12) of the initial annual Base Rent determined as provided for above.

“1.03 “Base Rent”. The Annual Rate Per Square Foot is now amended to read $0.88. The Monthly Base Rent is now amended to read $1,291.36

Upon final determination of the initial monthly Base Rent, if the amount of the Letter of Credit then held by ​ is not equal to the initial monthly Base Rent, then ​ shall promptly obtain a revised Letter of Credit in an amount equal to the initial monthly Base Rent.