Tenant Improvements. Unless specified otherwise herein, Tenant shall bear and pay the cost of the Tenant Improvements,(which cost shall include, without limitation, the costs of construction as provided for in the Tenant Improvement Contractor’s contract, the cost of permits, all architectural, design, space planning, and engineering services obtained by Tenant in connection with Tenant Improvements, laboratory and office improvements, wiring and cabling costs, and cubicle costs and the construction supervision fee payable to Landlord in an amount equal to the lesser of # $150,000, and # 1.5% of the cost (excluding such fee) of the Tenant Improvements; provided that so long as Tenant is not in default under the Lease beyond all applicable notice and cure periods, Landlord shall contribute a maximum of $150 per rentable square foot, for an aggregate maximum of # $15,121,200 (the “Tenant Improvement Allowance”), which shall be utilized only building improvements to the Building, the Generator and for any related costs, including but not limited to design, engineering, construction, furniture and equipment appurtenant to the Leased Premises, cabling, project management fees, moving expenses, and signage, plus # the additional sum of $350,000 (the “Elevator Allowance”) to be used by Tenant to partially defray the cost of the freight elevator to be installed by Tenant. The Tenant Improvement Allowance shall be available to Tenant until the later of # December 1, 2022, as may be delayed by Force Majeure and Landlord Delays, and # the date that is thirty (30) months after the Lease Commencement Date (the “TI Allowance Deadline”), after which Tenant shall have no further right to request any unrequested portion of the Tenant Improvement Allowance. The Elevator Allowance shall be available to Tenant until December 31, 2026, as may be delayed by Force Majeure and Landlord Delays (the “Elevator Allowance Deadline”; together with the TI Allowance Deadline, each an “Allowance Deadline”), after which Tenant shall have no further right to request any unrequested portion of the Elevator Allowance. Landlord acknowledges that Tenant may complete pre-construction, construction and installation of the freight elevator in phases over the course of the Term of the Lease, and agrees to make payments (which may be in multiple draws) of the Elevator Allowance to Tenant in accordance with this Paragraph 3. Subject to the applicable Allowance Deadline, based upon applications for payment prepared, certified and submitted by Tenant as described below, Landlord shall make progress payments from the Tenant Improvement Allowance or Elevator Allowance to Tenant in accordance with the provisions of this Paragraph 3 as follows:

Tenant Improvements. Unless specified otherwise herein, Tenant shall bear and pay the cost of the Tenant Improvements (which cost shall include, without limitation, the costs of construction as provided for in the Tenant Improvement Contractor’s contract, the cost of permits, and all architectural, design, space planning, and engineering services obtained by Tenant in connection with Tenant Improvements); provided that so long as Tenant is not in monetary or material non-monetary default under the Lease, Landlord shall contribute $15 per rentable square foot, for a total of $1,239,930 (the “Tenant Improvement Allowance”). The Tenant Improvement Allowance shall be utilized for the hard and soft costs of the Tenant Improvements, including without limitation building improvements to the Building, the cost of obtaining permits, costs of preparing any plans or drawings, the cost of performing the Tenant Improvements including labor and material costs, cost of any third party consulting or contracting fees (including without limitation costs of Tenant’s architect and engineers), costs with respect to the Tenant Improvement Project Manager, and any other hard costs of the Tenant Improvements; provided, however, the Tenant Improvement Allowance will not be used for signage, furniture costs, any telecom/cabling costs.

Tenant Improvements Allowance. Tenant shall be entitled to a tenant improvement allowance (the “Tenant Improvements Allowance”) in the maximum aggregate amount of $1,220,720.00 (in a total amount equivolent to $70.58 per rentable square foot of the entire Premises initially leased hereunder) and adjusted based on the actual square footage) (the “Maximum Allowance Amount”) for the hard costs and customary soft costs, as noted below, incurred by Tenant, including, without limitation, architectural and engineering fees, construction contractor fees, Tenant’s project management fees, a 2% fee payable to Landlord or its affiliates for oversight and administrative costs related to the Tenant Improvements (“Landlord’s Project Oversight Fee”), permits, and such other costs arising from or relating to the design and construction of Tenant’s improvements which are to be permanently affixed to the Premises in accordance with this Work Letter (the “Tenant Improvements”). Landlord’s Project Oversight Fee shall be equivolent to, but not exceed, a total of 2% of the Tenant Improvement Allowance paid to Tenant. For the avoidance of any doubt, the purchase and installation of data and telecommunications cabling shall not be included in the definition of Tenant Improvements and there shall not be any Landlord’s Project Oversight Fee payable with respect to costs and expenses related thereto. Tenant agrees to keep the Landlord advised as to the progress of the work by providing copies of the Contractor’s applications for payment. In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Maximum Allowance Amount. All Tenant Improvements for which the Tenant Improvements Allowance has been used to pay shall be deemed Landlord’s property under the terms of the Lease.

Tenant Improvements Allowance. Tenant shall be entitled to a tenant improvement allowance (the “Tenant Improvements Allowance”) in the maximum aggregate amount of $1,650,455.00 (i.e., $205.00 per rentable square foot of the entire Premises initially leased hereunder) (the “Maximum Allowance Amount”) for the hard costs and customary soft costs incurred by Landlord including, without limitation out-of-pocket architectural and engineering fees and a five (5%) project management fee payable to Landlord or its affiliates and permits, relating to the initial design and construction of Tenant’s improvements which are to be permanently affixed to the Premises in accordance with this Tenant Work Letter (the “Tenant Improvements”). At least eight-five percent (85%) of the Maximum Allowance Amount must be applied towards the hard costs of the Tenant Improvements. For the avoidance of any doubt, the purchase and installation of data and telecommunications cabling shall not be included in the definition of Tenant Improvements and there shall not be any project management fee payable with respect to costs and expenses related thereto. Landlord agrees to keep Tenant advised as to the progress of the work by providing copies of the Contractor’s applications for payment. The Tenant Improvements are described on the allocation of responsibility attached as Attachment 2 (the “Base TI Requirements”), and Landlord and Tenant acknowledge and agree that the Tenant Improvements Allowance shall be utilized subject to and pursuant to this Tenant Work Letter to construct the Tenant Improvements as described in the Base TI Requirements. In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Maximum Allowance (as it may be increased by the Additional Allowance below). All Tenant Improvements for which the Tenant Improvements Allowance has been made available shall be deemed Landlord’s property under the terms of the Lease.

Tenant Improvement Allowance. Subject to any restrictions, conditions or limitations expressly set forth in this Tenant Work Letter or in the Lease or as otherwise expressly provided by mutual written agreement of Landlord and Tenant, the cost of construction of the Tenant Improvements shall be paid or reimbursed by Landlord up to a maximum amount equal to $125.00 per rentable square foot of the Premises (i.e., $7,831,875.00 based upon 62,655 rentable square feet in the Premises) (the "Tenant Improvement Allowance"), which amount is being made available by Landlord to be applied towards the Cost of Improvements for the construction of the Tenant Improvements in the Premises, less any reduction in or charge against such amount pursuant to any applicable provisions of this Tenant Work Letter. Tenant shall be responsible, at its sole cost and expense, for payment of the entire Cost of Improvements of the Tenant Improvements in excess of the Tenant Improvement Allowance (such excess amount is referred to herein as the "Tenant Funds Amount", including (but not limited to) any costs or cost increases incurred as a result of delays (unless caused by Landlord), governmental requirements or unanticipated conditions (unless caused by Landlord), and for payment of any and all costs and expenses relating to any alterations, additions, improvements, furniture, furnishings, equipment, fixtures and personal property items which are not eligible for application of Tenant Improvement Allowance funds under the restrictions expressly set forth below in this paragraph, but Tenant shall be entitled to use or apply the entire Tenant Improvement Allowance toward the Cost of Improvements of the Tenant Improvements (subject to any applicable restrictions, conditions, limitations, reductions or charges set forth in the Lease or in this Tenant Work Letter) prior to being required to expend any of Tenant’s own funds for the Tenant Improvements. The funding of the Tenant Improvement Allowance shall be made on a monthly basis or at other convenient intervals mutually approved by Landlord and Tenant and in all other respects shall be based on such commercially reasonable disbursement conditions and procedures as Landlord, Project Manager and Landlord’s lender (if any) may reasonably prescribe. Notwithstanding the foregoing provisions, under no circumstances shall the Tenant Improvement Allowance or any portion thereof be used or useable by Tenant for any moving or relocation expenses of Tenant, or for any Cost of Improvement (or any other cost or expense) associated with any moveable furniture or trade fixtures, personal property or any other item or element which, under the applicable provisions of the Lease, will not become Landlord’s property and remain with the Building upon expiration or termination of the Lease.

Tenant Improvements Allowance. So long as Tenant is not in default, Tenant shall be entitled to an one-time tenant improvements allowance (the “Tenant Improvements Allowance”) in the maximum aggregate amount of: # $898,645.00 for the Expansion Premises (i.e., $55.00 per rentable square foot of the Expansion Premises) (the “Maximum Allowance Amount”) for the hard costs and customary soft costs, as noted below, incurred by Tenant including, without limitation out-of-pocket architectural and engineering fees, construction contractor fees, Tenant’s project management fees, and a two percent (2%) project management fee payable to Landlord or its affiliates (“Landlord’s Project Oversight Fee”), and permits, and such other costs arising from or relating to the design and construction of Tenant’s improvements which are to be permanently affixed to the Expansion Premises in accordance with this Work Letter (the “Tenant Improvements”). Landlord’s Project Oversight Fee shall be equivolent to, but not exceed, a total of 2% of the Tenant Improvement Allowance paid to Tenant. In no event shall Tenant be permitted to use any excess Tenant Improvements Allowance toward the Base Rent or any soft costs that are not directly related to the design and construction within the Expansion Premises. For the avoidance of any doubt, the purchase and installation of data and telecommunications cabling shall not be included in the definition of Tenant Improvements and there shall not be any Landlord’s Project Oversight Fee payable with respect to costs and expenses related thereto. The Tenant agrees to keep the Landlord advised as to the progress of the work by providing copies of the Contractor’s applications for payment. In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Maximum Allowance Amount and in no event shall Tenant be entitled to any credit for any unused portion of the Tenant Improvements Allowance. All Tenant Improvements for which the Tenant Improvements Allowance has been made available shall be deemed Landlord’s property under the terms of the Lease.

Landlord and Tenant acknowledge that Tenant has been occupying the Premises pursuant to the Lease. Except as specifically set forth herein, Landlord shall not be obligated to construct or install any improvements or facilities of any kind in the Premises, and Tenant shall continue to accept the Premises in its currently-existing, "as-is" condition. Notwithstanding the foregoing, Tenant shall be entitled to a one-time tenant improvement allowance (the "Tenant Improvement Allowance") equal to $739,450.00 (i.e., approximately $10.00 per rentable square feet of the Original Premises) for the costs relating to the design and construction of Tenant's improvements which are permanently affixed to the Original Premises (the “Tenant Improvements”). The Tenant Improvement Allowance will be disbursed in accordance with Landlord's standard disbursement procedures, including, without limitation, following Landlord's receipt of (i) evidence (i.e., invoices or other documentation reasonably satisfactory to Landlord) of payment for the Tenant Improvements, and (ii) fully executed, unconditional lien releases from all contractors, subcontractors, laborers, materialmen, and suppliers used by Tenant in connection with the Tenant Improvements. The Tenant Improvements shall be constructed in accordance with the terms and conditions of Article 9 of the Original Lease. In no event shall Landlord be obligated to disburse any portion of the Tenant Improvement Allowance subsequent to the date which is twelve (12) months following the Effective Date, nor shall Landlord be obligated to disburse any amount in excess of the Tenant Improvement Allowance in connection with the construction of the Tenant Improvements. No portion of the Tenant Improvement Allowance, if any, remaining after the construction of the Tenant Improvements shall be available for use by Tenant.

Improvements. Except as specifically set forth herein, Landlord shall not be obligated to provide or pay for any improvement work or services related to the improvement of the Premises, and Tenant shall continue to accept the Premises in its presently existing, "as-is" condition. Notwithstanding the foregoing, with respect to the Premises Tenant shall be entitled to a one-time tenant improvement allowance (the "Tenant Improvement Allowance") equal to $200,000.00 for the costs relating to the design and construction of Tenant's improvements which are permanently affixed to the Premises (the “Tenant Improvements”). The Tenant Improvement Allowance will be disbursed in accordance with Landlord's standard disbursement procedures, including, without limitation, following Landlord's receipt of # evidence (i.e., invoices or other documentation reasonably satisfactory to Landlord) of payment for the Tenant Improvements, and # fully executed, unconditional lien releases from all contractors, subcontractors, laborers, materialmen, and suppliers used by Tenant in connection with the Tenant Improvements. The Tenant Improvements shall be constructed in accordance with the terms and conditions of Section 9 of the Original Lease, except that Tenant may use non-union labor in connection with the Tenant Improvements. In no event shall Landlord be obligated to disburse any portion of the Tenant Improvement Allowance subsequent to December 31, 2019, nor shall Landlord be obligated to disburse any amount in excess of the Tenant Improvement Allowance in connection with the construction of the Tenant Improvements. No portion of the Tenant Improvement Allowance, if any, remaining after the construction of the Tenant Improvements shall be available for use by Tenant.

Landlord shall cause the Tenant Improvements to be constructed in the Premises pursuant to the Work Letter at a cost to Landlord not to exceed Six Million Two Hundred Twenty-One Thousand One Hundred Dollars ($6,221,100.00) (based upon One Hundred Fifty Dollars ($150.00) per square foot of Rentable Area (as defined below)) (the “TI Allowance”). The TI Allowance may be applied to the costs of the Tenant Improvements for # construction, # project management by Landlord (which fee shall equal three percent (3%) of the TI allowance, # commissioning of mechanical, electrical and plumbing systems by a licensed, qualified commissioning agent hired by Landlord, and review of such party’s commissioning report by a licensed, qualified commissioning agent hired by Tenant, # space planning, architect, engineering and other related services performed by third parties unaffiliated with Tenant, # building permits and other taxes, fees, charges and levies by Governmental Authorities (as defined below) for permits or for inspections of the Tenant Improvements, and # costs and expenses for labor, material, equipment and fixtures. In no event shall the TI Allowance be used for # payments to Tenant or any affiliates of Tenant, # the purchase of any furniture, personal property or other non-building system equipment, # costs arising from any default by Tenant of its obligations under this Lease or # costs that are recoverable by Tenant from a third party (e.g., insurers, warrantors, or tortfeasors).

In order to defray all or a portion of Tenant’s costs (collectively, “Tenant’s Costs”) related to # the construction of the Tenant Improvements, and # any Increases, Landlord will make the Improvement Allowance available, subject to and in accordance with this [Section 6.2]. If the total amount payable to the TI Contractor pursuant to the TI Construction Contract exceeds the Improvement Allowance, Tenant shall first make Contractor Payments from its own funds in the amount of any such excess before Landlord is obligated to disburse the Improvement Allowance as provided herein. If the total amount payable to the TI Contractor pursuant to the TI Construction Contract is less than the Improvement Allowance, then the amount of the TI Allowance which is in excess of the amount payable to the TI Contractor, not to exceed the product of $15.00 multiplied by the Building Square Footage, may be applied by Tenant to pay design costs for the Tenant Improvements, moving expenses, project or construction management fees in connection with the construction of the Tenant Improvements, costs of data and telecommunications wiring, security costs, signage costs, and the costs of furniture including free standing workstations, fixtures and equipment to the extent such costs relate to the Tenant Improvements and/or Tenant’s occupancy of the Premises. Any amounts shall be disbursed by Landlord to Tenant within thirty (30) days following receipt of invoices evidencing such costs and lien waivers, but in no event prior to the TI Completion Date.