Improvement Allowance. Landlord and Tenant hereby acknowledge that pursuant to the terms of Section 2.5 of the First Amendment Work Letter and Section 2 of the Second Amendment, Tenant is entitled to a one-time Improvement Allowance in the amount of $12,698,190.00 (the "12780 Improvement Allowance") for the costs relating to the initial design and construction of the improvements which are permanently affixed to the Premises. In connection with the increase of the Landlord Contribution Amount set forth in Section 8 above, Landlord and Tenant hereby desire to decrease such 12780 Improvement Allowance, and accordingly, effective as of the date of this Third Amendment, # Landlord and Tenant hereby decrease the 12780 Improvement Allowance by $50,000.00 to a new total of $12,648,190.00, and # the term “12780 Improvement Allowance” shall hereafter refer to such amount.

Allowance. Tenant shall be entitled to a one-time tenant improvement allowance (the “Allowance”) in the amount of $4,159,870.00 to be applied toward the Allowance Items (defined in Section 1.2 below). Tenant shall be responsible for all costs associated with the Tenant Improvement Work, including the costs of the Allowance Items, to the extent such costs exceed the lesser of # the Allowance, or # the aggregate amount that Landlord is required to disburse for such purpose pursuant to this Work Letter. Notwithstanding any contrary provision hereof, if Tenant fails to use the entire Allowance by April 30, 2011, the unused amount shall revert to Landlord and Tenant shall have no further rights with respect thereto.

Tenant Improvement Allowance. Tenant shall be entitled to a one-time tenant improvement allowance ("Tenant Improvement Allowance") in the amount of One Million Six Hundred Thirty-One Thousand Nine Hundred Thirty and No/100 Dollars ($1,631,930.00) for the cost relating to the initial design and the actual cost of constructing certain interior improvements which are permanently affixed to the Premises and approved in advance by Landlord ("Tenant Improvements"). Notwithstanding anything to the contrary contained in this Tenant Work Letter, in no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount which exceeds the Tenant Improvement Allowance, and in no event shall Tenant be entitled to any portion of the Tenant Improvement Allowance not requested by Tenant (in accordance with the terms and conditions of this Work Letter) on or prior to the date that is ​ months following the Commencement Date.

Tenant Improvement Allowance. Landlord shall, as set forth below, contribute up to Eighty-Six Thousand, Four Hundred Ninety Dollars ($86,490.00) (i.e., $5.00 per rentable square foot of the Premises) (“Tenant’s Improvement Allowance”) towards the cost of the initial leasehold improvements to be installed by Tenant in the Premises (“Tenant’s Work”). Tenant’s Work shall be performed in accordance with Articles 12 and 13 hereof. If Tenant’s Improvement Allowance will not be sufficient to complete Tenant’s Work, Tenant shall pay the excess costs, prior to Landlord’s disbursing Tenant’s Improvement Allowance to Tenant.

Allowance. Tenant shall be entitled to a one-time tenant improvement allowance (for purposes of this Exhibit B, the “Allowance”) in the amount of $200,000.00 to be applied toward the Allowance Items (defined in Section 1.2 below). Tenant shall be responsible for all costs associated with the Tenant Improvement Work, including the costs of the Allowance Items, to the extent such costs exceed the lesser of # the Allowance, or # the aggregate amount that Landlord is required to disburse for such purpose pursuant to this Extension Work Letter. Notwithstanding any contrary provision of this Agreement, if Tenant fails to use the entire Allowance by December 31, 2019, the unused amount shall revert to Landlord and Tenant shall have no further rights with respect thereto.

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.

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.

Allowance. Tenant shall be entitled to an allowance (the “Tenant Improvement Allowance”) in an amount not to exceed $110.00 per square foot of Rentable Area of the Premises for the costs relating to the design, permitting and construction of Tenant’s improvements which will be permanently affixed to the Premises in accordance with this Workletter (the “Tenant Improvements”). In no event will Landlord be obligated to make disbursements pursuant to this Workletter in a total amount which exceeds the Tenant Improvement Allowance. Tenant agrees that it shall commence the Tenant Improvements promptly following the Commencement Date and diligently proceed to complete the same. Tenant must submit Payment Request Supporting Documentation (defined below) for such work in accordance with this Workletter no later than April 1, 2020, after which date Landlord’s obligation to fund such costs shall expire.

Tenant Improvement Allowance. Tenant shall be entitled to a one‑time tenant improvement allowance (the “Tenant Improvement Allowance”) in the amount of up to, but not exceeding Two Hundred Thirty Dollars ($230.00) per rentable square foot of the Premises (i.e., up to Five Million, Four Hundred Fifty Thousand, Eighty Dollars ($5,450,080.00), for the costs relating to the initial design and construction of Tenant’s improvements which are permanently affixed to the Premises, including without limitation, power distribution (the “Tenant Improvements”); provided, however, Landlord shall have no obligation to disburse all or any portion of the Tenant Improvement Allowance to Tenant unless Tenant makes one or more requests for disbursement pursuant to the terms and conditions of Section 2.2 below prior to the second anniversary of the Delivery Date. In addition, Tenant shall, by written notice given to Landlord (the “Allowance Increase Notice”) given no later than thirty (30) days after the Final Costs are determined in accordance with Section 4.2.1 below, have the one-time right to increase the amount of the Tenant Improvement Allowance by an amount not to exceed Five Hundred Ninety-Two Thousand, Four Hundred Dollars ($592,400.00) (i.e., $25.00 per rentable square foot of the Premises) (the “Additional Allowance”). The Additional Allowance, if and to the extent elected by Tenant, shall be added to the Tenant Improvement Allowance and used on the terms and conditions set forth herein with respect to the Tenant Improvement Allowance (and the

Improvement Allowance. Tenant shall be entitled to a one-time improvement allowance (the "Improvement Allowance") in the amount of […​…] per rentable square foot of the Premises for the costs relating to the initial design and construction of the improvements which are permanently affixed to the Premises (the "Improvements"). In no event shall Landlord be obligated to make disbursements pursuant to this Work Letter in the event that Tenant fails to immediately pay any portion of the "Over-Allowance Amount," as defined in Section 4.2.1, nor shall Landlord be obligated to pay a total amount which exceeds the Improvement Allowance. Notwithstanding the foregoing or any contrary provision of this Lease, all Improvements shall be deemed Landlord's property under the terms of this Lease. Any unused portion of the Improvement Allowance remaining one (1) year after of the Lease Commencement Date (the "Allowance Deadline"), shall remain with Landlord and Tenant shall have no further right thereto.

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.