Comparable Position. Severance Pay shall not be paid to any Employee whose employment is involuntarily terminated related to

Comparable Buildings 6

Comparable Buildings.................................................................................................... Exhibit G

medical services for use by the Permitted Users of the type that are customarily maintained by office tenants in Comparable Buildings;

Prevailing Market Rate. The Base Rent payable by Tenant for the Premises during an Extension Term shall be the Prevailing Market Rate (as defined below) for the Premises, valued as of the commencement of such Extension Term, determined in the manner hereinafter provided. As used herein, the term “Prevailing Market Rate” shall mean the annual Base Rent that a willing tenant would pay, and that a willing landlord would accept, at arm’s length, for space comparable to the Premises within other comparable first class office buildings having more than two (2) stories located in the area including and bounded by South San Francisco to the north and Sunnyvale to the south (the “Comparable Buildings”), based upon binding lease transactions for tenants in Comparable Buildings (“Comparable Leases”). Comparable Leases shall include renewal and new non-renewal tenancies, but shall exclude subleases and leases of space subject to another tenant’s expansion rights. Rent rates payable under Comparable Leases shall be adjusted to account for variations between this Lease and the Comparable Leases with respect to: # the length of the Extension Term compared to the lease term of the Comparable Leases; # the rental structure, including, without limitation, rental rates per rentable square foot (including whether gross or net, and if gross, adjusting for base year or expense stop), additional rental, all other payments and escalations; # the size of the Premises compared to the size of the premises of the Comparable Leases; # the location, floor levels and efficiencies of the floor(s) of the Premises compared to the premises of the Comparable Lease; # free rent, moving expenses and other cash payments, allowances or other monetary concessions affecting the rental rate; # the age and quality of construction of the Building compared to the Comparable Building; # the leasehold improvements and/or allowances, including the amounts thereof in renewal leases, and taking into account, in the case of renewal leases (including this Lease), the value of existing leasehold improvements to the renewal tenant, # access and proximity to Caltrain, # the amenities available to tenants in the Building compared to amenities available to tenants in Comparable Buildings; # the energy efficiencies and environmental elements of the Building compared to Comparable Buildings, including improvements required for the U.S. Green Building Council’s Leadership in Energy and Environmental Design (“LEED”) certification, # the brokerage commissions, # the availability of parking, the parking ratio and parking charges, and # the relative market rent rates within the geographic area referenced in the definition of Comparable Buildings.

Upon the commencement of each Extension Term, Base Rent shall be payable at the Market Rate (as defined below). As used herein, “Market Rate” shall mean the rate (including any adjustments during the Term) that institutional landlords of comparable buildings have accepted in current transactions from non-equity (i.e., not being offered equity in the buildings) and nonaffiliated tenants of similar financial strength for space of comparable size, quality (including all tenant improvements, Alterations and other improvements) and floor height in Class A laboratory/office buildings in the San Carlos area for a comparable term, with the determination of the Market Rate to take into account all relevant factors, including tenant inducements, percentage of laboratory and office space, views, project amenities, parking costs, leasing commissions, allowances or concessions, if any, and whether or not such concessions are being offered to Tenant during such Extension Term.

Professional Maintenance. ​ shall perform the ​ Maintenance Responsibilities in a manner consistent with the standards followed by ​ and other first-class owners and management companies that are managing Comparable Buildings (the “Management Standard”).

That the Neutral Arbitrator shall not be allowed to undertake an independent investigation or consider any factual information other than presented by ​ or ​, except that the Neutral Arbitrator shall be permitted to visit the Project and the buildings containing the Comparable Transactions;

Option Rent. The annual Rent payable by Tenant during the Option Term (the "Option Rent XE "Option Rent" ") shall be equal to the "Fair Rental Value," as that term is defined below, for the Premises as of the commencement date of the Option Term. The "Fair Rental Value XE "Fair Rental Value" ," as used in this Lease, shall be equal to the annual rent per rentable square foot (including additional rent and considering any "base year" or "expense stop" applicable thereto), including all escalations, at which tenants (pursuant to leases consummated within the twelve (12) month period preceding the first day of the Option Term), are leasing non-sublease, non-encumbered, non-equity space which is not significantly greater or smaller in size than the subject space, with a comparable level of improvements (excluding any property that Tenant would be allowed to remove from the Premises at the termination of the Lease), for a comparable lease term, in an arm's length transaction, which comparable space is located in the "Comparable Buildings," as that term is defined in this Section 2.2.2, below (transactions satisfying the foregoing criteria shall be known as the " XE "Comparable Transactions" Comparable Transactions"), taking into consideration the following concessions (the " XE "Concessions" Concessions"): # rental abatement concessions, if any, being granted such tenants in connection with such comparable space; # tenant improvements or allowances provided or to be provided for such comparable space, and taking into account the value, if any, of the existing improvements in the subject space (other than improvements installed by Tenant at Tenant’s sole cost and expense), such value to be based upon the age, condition, design, quality of finishes and layout of the improvements and the extent to which the same can be utilized by a general office/lab user other than Tenant; and # other reasonable monetary concessions being granted such tenants in connection with such comparable space; provided, however, that in calculating the Fair Rental Value, no consideration shall be given to the fact that Landlord is or is not required to pay a real estate brokerage commission in connection with Tenant's exercise of its right to extend the Lease Term, or the fact that landlords are or are not paying real estate brokerage commissions in connection with such comparable space. The Concessions shall be reflected in the effective rental rate (which effective rental rate shall take into consideration the total dollar value of such Concessions as amortized on a straight-line basis over the applicable term of the Comparable Transaction (in which case such Concessions evidenced in the effective rental rate shall not be granted to Tenant)) payable by Tenant. The term “ XE “Comparable Buildings” Comparable Buildings” shall mean the Building and those other life sciences buildings which are comparable to the Building in terms of age (based upon the date of completion of construction or major renovation to the building), quality of

rent for any office space occupied by Project management personnel to the extent the size or rental rate of such office space exceeds the size or fair market rental value of office space occupied by management personnel of the comparable buildings in the vicinity of the Building, with adjustment where appropriate for the size of the applicable project;