The Building and The Project. The Premises consist of the entirety of the building set forth in Section 2.1 of the Summary (the “Building”). The term “Project,” as used in this Lease, shall mean # the Building, # the Common Areas, # the Property and the land upon which the Common Areas are located, and # the additional real property, areas, land, buildings and other improvements subject to that certain Declaration of Covenants, Conditions, Restrictions and Easements for Plaza Six, dated as of April 30, 1985 and recorded on April 30, 1985 as instrument Number 85-083796 in the Official Records of Alameda County, California (the “Official Records”), as amended by that certain First Amendment to Declaration of Covenants, Conditions, Restrictions, and Easements dated as of March 29, 2019, and recorded on March 29, 2019, as Instrument Number 2019-056223 in the Official Records, and that certain Second Amendment to Declaration of Covenants, Conditions, Restrictions, and Easements dated as of April 16, 2019, and recorded on May 1, 2019, as Instrument Number 2019-079180 in the Official Records (as amended, the “Declaration”).

The Building and The Project. The Premises constitutes a portion of the building set forth in Section 2.1 of the Summary (the " XE "Building" Building"). The Building is part of an office/laboratory project

Operable Base Building Systems; Warranty. Landlord shall deliver the Premises with the Building’s heating, ventilating and air conditioning system and equipment, the plumbing, sewer, drainage, electrical, fire protection, elevator, life safety and security systems and equipment and other mechanical, electrical and communications systems and equipment (collectively, the “Base Building Systems”), the structural elements of the Premises and the foundation of the Building in good working order and repair. If, during the one (1) year period following the Delivery Date, it is determined that any of the Base Building Systems are not in good working order and repair, then Landlord shall not be liable to Tenant for any damages, but Landlord, at no cost to Tenant (including as Operating Expenses), shall take such other action as may be necessary to place the applicable Building System in the good working condition; provided, however, that if Tenant does not give Landlord written notice of any deficiency of any of the Base Building Systems within one (1) year after the Delivery Date , Landlord shall not be responsible for correcting such condition pursuant to this Paragraph 10.2 but rather such condition shall be corrected as otherwise provided in the Lease and the cost of performing such correction shall be included in Operating Expenses, to the extent permitted pursuant to Paragraph 7 or performed by Tenant as required under Paragraph 11. Landlord’s warranty hereunder does not cover the cost of normal repair, maintenance or replacement expected in light of the specifications of the applicable construction materials, equipment or system.

Ownership of Station 5 Building. The Station 5 Building is owned by an affiliated entity of Landlord. At such time the construction of the Station 5 Building is to commence, the Station 5 Building may be transferred to a different affiliated entity of Landlord. Such affiliated entities and Landlord are under common Control. Landlord shall cause such affiliated entities to perform all obligations of Landlord under this Paragraph 42 with respect to the leasing of the Station 5 Building.

Building Hours: 8:00 a.m. to 6:00 p.m. Monday through Friday (excluding Holidays) and 8:00 a.m. to 1:00 p.m. on Saturday (excluding Holidays).

Project or Building Name and Signage. ​ shall have the right at any time to change the name of the Project or Building and to install, affix and maintain any and all signs on the exterior and on the interior of the Project or Building as ​ may, in ​’s sole discretion, desire. ​ shall not use the name of the Project or Building or use pictures or illustrations of the Project or Building in advertising or other publicity or for any purpose other than as the address of the business to be conducted by ​ in the Premises, without the prior written consent of ​.

Operating Expenses which relate to a specific office building and not to any other office building in the Project (including without limitation, separately metered electrical costs and repair and maintenance costs of any office building), shall be entirely allocated to such specific office building. Accordingly, the cost of the maintenance and repairs set forth in Paragraph 10.1 with respect to the Building, the premiums and costs for insurance covering the Building, and the Real Property Taxes assessed against the Building and the parcel of land upon which the Building is located shall be entirely allocated to the Building.

Substantial Completion of the Base Building Improvements. Landlord shall use commercially reasonable efforts to cause the Base Building Improvements that are required to permit Tenant to enter the Premises for purposes of performing the Tenant Improvement Work to be Substantially Complete on or before July 1, 2016, subject to Force Majeure Events and Tenant Delays. Tenant shall have the right to reasonably monitor and confirm Landlord’s completion of such Base Building Improvements substantially in conformance with the Building Plans. Landlord will give Tenant at least five (5) Business Days’ prior written notice of the date on which such Base Building Improvements are anticipated to be Substantially Complete (the “Substantial Completion Date”). “Substantially Complete” or “Substantial Completion” shall mean that # the Base Building Improvements that are required to permit Tenant to enter the Premises for purposes of performing the Tenant Improvement have been completed in accordance with the Building Plans, the correction or completion of which items, collectively, will not substantially interfere with Tenant’s ability to commence the Tenant Improvement Work and # Tenant is legally permitted to enter the Premises for purposes of performing the Tenant Improvement Work. Landlord and Tenant shall then arrange a mutually convenient time, no later than ten (10) Business Days after the anticipated Substantial Completion Date specified in Landlord’s notice, for Tenant and/or Tenant’s Architect (as defined below) and Landlord and/or Landlord’s Architect to conduct a walk-through inspection of the Base Building Improvements.

Condition of the Building and Premises Upon Surrender. In addition to the above requirements of this Article 15, upon the expiration of the Lease Term, or upon any earlier termination of this Lease, Tenant shall, surrender the Premises and Building with Tenant having complied with all of Tenant’s obligations under this Lease, including those relating to improvement, repair, maintenance, compliance with law, testing and other related obligations of Tenant set forth in Article 7 of this Lease. In the event that the Building and Premises shall be surrendered in a condition which does not comply with the terms of this Section 15.4, because Tenant failed to comply with its obligations set forth in Lease, then following thirty (30) days' notice to Tenant, during which thirty (30) day period Tenant shall have the right to cure such noncompliance, Landlord shall be entitled to expend all reasonable costs in order to cause the same to comply with the required condition upon surrender and Tenant shall immediately reimburse Landlord for all such costs upon notice.

Tenant shall not swap or exchange building keys or cardkeys with other employees or tenants in the Building or the Project.