Rentable Square Feet of Premises. The RSF of the Premises and Building are hereby stipulated to be as set forth in the Summary, and shall not be subject to measurement or modification during the Lease Term.

“Premises: That portion the Project containing approximately 10,142 rentable square feet, consisting of # that portion of Suite A, containing approximately 3,380 rentable square feet (the “Original Premises”), and # that portion of Suite A, containing approximately 6,762 rentable square feet (“Expansion Premises”), all as determined by Landlord, as shown on [Exhibit A].

The number of rentable/usable square feet within the Premises is approximately square feet.

“Premises” means # Suite 300 on the third floor, consisting of approximately 11,988 usable square feet and approximately 13,966 rentable square feet, and # Suite 400 on the fourth floor, consisting of approximately 25,566 usable square feet and approximately 29,248 rentable square feet, comprising in the aggregate a total of approximately 37,554 usable square feet and approximately 43,214 rentable square feet, shown on the attached [Exhibit B] and located in the Building, which contains approximately 121,425 usable square feet and approximately 138,893 rentable square feet. The Premises do not include, and Landlord reserves, the exterior walls and roof of the Premises, the land and other area beneath the floor of the Premises, the pipes, ducts, conduits, wires, fixtures and equipment above the suspended ceiling of the Premises and the structural elements that serve the Premises or comprise the Building. Landlord's reservation includes the right to install, inspect, maintain, use, repair, alter and replace those areas and items and to enter the Premises in order to do so in accordance with Paragraph 9.3. For all purposes of this Lease, the calculation of “usable square feet” and “rentable square feet” contained within the Premises and the Building shall be subject to final measurement and verification by Landlord's architect according to ANSI/BOMA Standard ​ (or any successor standard) and, in the event of a variation, Landlord and Tenant shall amend this Lease accordingly, amending each provision that is based on usable or rentable square feet, including, without limitation, Basic Monthly Rent, Security Deposit, Tenant's Parking Stall Allocation, Tenant's Percentage of Operating Expenses and TI Allowance.

Section # Landlord and Tenant acknowledge and agree that effective as of ​ and for all purposes of the Lease, including, without limitation, [Article 9] of this Amendment, # the Entire 3rd Floor Space shall be deemed to consist of 7,391 rentable square feet, # the Original Premises shall be deemed to consist of 51,312 rentable square feet (with 25,656 rentable square feet on each of the 11th floor of the Building and the 12th floor of the Building), # the Entire 14th Floor Space shall be deemed to consist of 12,064 rentable square feet, and # the Storage Space shall be deemed to consist of 593 rentable square feet.

Suite 310/320 on the third floor of the Building, consisting of approximately 2,871 usable square feet and approximately 3,303 rentable square feet, shall be removed from the Premises;

Suite 500 on the fifth floor of the Building, consisting of approximately 3,732 usable square feet and approximately 4,305 rentable square feet, shall be added to the Premises; and

* The Base Rent for the period commencing on ​ and continuing through and including ​ is calculated based on 159,891 rentable square feet in the Premises, notwithstanding that Tenant is leasing the entire Premises (consisting of 234,892 rentable square feet (such amount of Base Rent that Tenant is not obligated to pay due to such reduced rentable square footage calculation is the "Partial Base Rent Abatement")); provided, however, that Tenant shall pay Tenant's Share of Operating Expenses and Tax Expenses and all other Additional Rent based on 234,892 rentable square feet in the Premises for the entire Lease Term, as amended, and provided further, however, the amortized portion of the Partial Base Rent Abatement shall be repaid by Tenant to Landlord

Lease of Premises. Pursuant to Section 2 of the Lease, Tenant has the right to occupy portions of the Phase 1 Must Take Premises and/or Phase 2 Must Take Premises and conduct business therein prior to the initially stated Phase 1 Commencement Date and/or the Phase 2 Commencement Date upon written notice to Landlord. Tenant has delivered such as to the 6,703 Rentable Square Feet portion of the Phase 1 Must Take Premises and the Phase 2 Must Take Premises shown on Exhibit A attached hereto. The Premises currently contain 36,845 Rentable Square Feet. Tenant must lease the remaining 1,506 Rentable Square Feet of the Phase 2 Must Take Premises no later than the expiration of the 18th month of the Term (April 30, 2015).

Construction Allowance: The product of ​ and the number of square feet of Premises Rentable Area, based on the final measurement of the Premises as provided in [Section 1] of Rider 2 to this Lease (currently anticipated to be ​).

WHEREAS, Landlord wishes to lease to Tenant, and Tenant desires to lease from Landlord, certain premises (the “Premises”) consisting of approximately 20,900 rentable square feet of space located on the first (1st) floor of the building located at 4980 Carroll Canyon Road in which the Premises are located (the “Building”), pursuant to the terms and conditions of this Lease, as detailed below.

Premises: approximately 248,911 square feet of rentable area (subject to measurement in accordance with [Section 1] of Rider 2 to this Lease) in the Commercial/Garage Unit consisting of the entire rentable area located on the 9th, 10th, 11th, 12th, 13th, 14th, 15th, 16th, and 17th floors of the Building, as more particularly described and depicted on [Exhibit A-11]1]].

such change order will not materially change the gross square feet or the net rentable square feet of commercial space to be contained in the Improvements or the net rentable square feet of space to be contained in the Improvements, or the basic layout of the Improvements, or involve the use of materials, furniture, fixtures and equipment that will not be at least equal in quality to the materials, furniture, fixtures and equipment originally specified in or required by the approved Plans and Specifications; and

Grant of Option. If, at any time during the Term hereof the Lease, Landlord elects to construct the building within the Project currently designed to be comprised of approximately 95,000 rentable square feet and having an address of 3150 South Delaware (but which may be redesigned to increase the rentable square footage to up to 265,000 rentable square footage) (the “Station 5 Building”) as depicted on [Exhibit B] and make the Station 5 Building available for lease, Tenant shall have a one-time right to expand the Premises by leasing the Station 5 Building in accordance with the terms, covenants and conditions contained in this Paragraph 42 (the “Expansion Option”).

Landlord and Tenant presently desire to amend the Lease to add to the Lease # approximately 3,100 rentable square feet of space located on the third (3rd) floor of the Building, effective as of the date hereof, and # approximately 2,400 rentable square feet of space on the fourteenth (14th) floor of the Building, effective as of ​, all on the terms and conditions set forth below.

In the definitions below, each current Rentable Area (as defined below) is expressed in square feet. Rentable Area and “Tenant’s Pro Rata Share” are both subject to adjustment as provided in this Lease.

Existing Premises. Landlord and Tenant hereby agree that pursuant to the Lease, Landlord currently leases to Tenant and Tenant currently leases from Landlord that certain office space in the Existing Building containing 33,676 rentable square feet located on the first (1st) and second (2nd) floors of the Existing Building as described in [Section 1] of the Second Amendment (the "Existing Premises").

Landlord and Tenant are now parties to that certain Lease Agreement dated as of ​ (the “Lease”). Pursuant to the Lease, Tenant leases certain premises containing approximately 98,133 rentable square feet located at 825 Industrial Road, San Carlos, California (the “Premises”). The Premises are more particularly described in the Lease. Capitalized terms used herein without definition shall have the meanings defined for such terms in the Lease.

Landlord and Tenant desire to substitute the Original Premises with approximately 4,754 rentable square feet of space commonly known as Suite B in the Building, with a street address of 3940 Trust Way, Hayward, California 94545 (the “Substitute Premises”), as set forth on [Exhibit A] attached hereto, and to make other modifications to the Lease on the terms and conditions set forth in this Amendment.