Section # Commencement of Exercisability

Exercisability. Stock Options shall be exercisable to the extent vested; provided that the exercise of a Stock Option shall be subject to such additional terms and conditions, performance requirements, restrictions, forfeiture provisions, contingencies and limitations, if any, as shall be determined by the Administrator and listed in the applicable option agreement.

Exercisability. Stock Appreciation Rights shall be exercisable to the extent vested; provided that the exercise of a Stock Appreciation Right shall be subject to such additional terms and conditions, performance requirements, restrictions, forfeiture provisions, contingencies and limitations, if any, as shall be determined by the Administrator and listed in the applicable award agreement.

Exercisability. Outside Director Stock Options shall be exercisable to the extent vested.

Exercisability. Subject to Section 8(d), Options shall become exercisable in four equal annual installments commencing on the first anniversary date of the grant.

Exercisability. Options granted under the Plan shall be exercisable at such time and upon such terms and conditions as may be determined by the Committee, but in no event shall an Option be exercisable more than ten years after the date it is granted, except as may be provided pursuant to Section 15.

Exercisability. Each Option shall be exercisable at such time or times and subject to such terms and conditions, including the attainment of performance goals, as shall be determined by the Administrator in the applicable Award Agreement. The Administrator may also provide that any Option shall be exercisable only in installments, and the Administrator may waive such installment exercise provisions at any time, in whole or in part, based on such factors as the Administrator may determine in its sole discretion.

Stock Appreciation Rights that are Free Standing Rights shall be exercisable at such time or times and subject to such terms and conditions as shall be determined by the Administrator in the applicable Award Agreement.

Exercisability. Subject to [Section 5A(j)] hereof, Options shall be exercisable at such time or times and subject to such terms and conditions as shall be determined by the Committee at the time of grant; provided, however, that in the absence of any Option vesting periods designated by the Committee at the time of grant, Options shall vest and become exercisable as to one-third of the total number of shares subject to the Option on each of the first, second and third anniversaries of the date of grant; and provided further that no Options shall be exercisable until such time as any vesting limitation required by Section 16 of the Exchange Act, and related rules, shall be satisfied if such limitation shall be required for continued validity of the exemption provided under Rule 16b-3(d)(3).

Commencement of Work. At least ten (10) days prior to the commencement of construction of the Tenant Improvements, or the delivery of any construction materials to the Premises, whichever is earlier, Tenant shall submit to Landlord a notice specifying the date Tenant will commence construction of the Tenant Improvements, the estimated date of completion of the Tenant Improvements, and the construction schedule for the Tenant Improvements provided by Tenant’s Contractor, setting forth the projected date of completion of such phase of the Tenant Improvements and showing critical time deadlines for construction milestones with respect to each major component or trade. In addition, prior to the commencement of construction of the Tenant Improvements, or the delivery of any construction materials to the Premises, whichever is earlier, Tenant shall submit to Landlord the following: # all Permits required to commence construction of the Tenant Improvements; # a copy of the executed contracts with Tenant’s Contractor and Major Subcontractors; # a detailed breakdown of the schedule of values, by trade, of the final costs that will be or have been incurred, in connection with the performance of the Tenant Improvement Work and that form the basis for the amount of the contracts (the “Final Costs”); and # certificates of all policies of insurance, or original certificates thereof executed by an authorized agent of the insurer or insurers, confirming to Landlord’s reasonable satisfaction compliance with the insurance requirements of this Agreement. Tenant shall be responsible for all costs associated with the Tenant Improvement Work, including the costs of the Permitted Allowance Items, to the extent the same exceed the aggregate amount that Landlord is required to disburse for such purpose pursuant to this Agreement.

Commencement and Permitting. Landlord shall commence construction of the Tenant Improvements upon obtaining a building permit (the “Tl Permit”) authorizing the construction of the Tenant Improvements consistent with the Tl Construction Drawings approved by Tenant. The cost of obtaining the Tl Permit shall be payable by Landlord. Tenant shall reasonably assist Landlord in obtaining the Tl Permit. If any Governmental Authority having jurisdiction over the construction of Landlord’s Work or any portion thereof shall impose terms or conditions upon the construction thereof that: # are inconsistent with Landlord’s obligations hereunder, # materially increase the cost of constructing Landlord’s Work, or # will materially delay the construction of Landlord’s Work, Landlord and Tenant shall reasonably and in good faith seek means by which to mitigate or eliminate any such adverse terms and conditions.

Commencement Date Delay. Except as otherwise provided in the Lease, Delivery of the Premises shall occur when Landlord’s Work has been Substantially Completed, except to the extent that completion of Landlord’s Work shall have been actually delayed by any one or more of the following causes (“Tenant Delay”):

Commencement of Employment. Your employment with the Company as Chief Executive Officer and President will start on or before May 1, 2017 or such earlier date as you may be able to initiate employment (the “Start Date”). Prior to commencing employment you agree to make yourself available for various internal meetings and discussions. You will work at the Company’s headquarters, currently Menlo Park, California.

Benefit Commencement Date Subject to any delay in accordance with [Section 39], benefits under this Plan commence on the Participant's Benefit Commencement Date

Commencement of Payments. Payments, or entitlement to begin receiving them, will commence after the Company has received a valid unrevoked Release from the Officer and his or her right to revoke the Release has expired and, if applicable, the Officer has executed an agreement implementing the terms of the Officer’s right to receive payments under this Plan. Except as provided under Section 3.3(e), Payments shall commence as of the date specified in the documentation provided to the Officer at the time of Separation from Service, but not later than ninety (90) days following the date of the Officer’s Separation from Service.

Payment Commencement Date. Payments of Deferred Compensation and earnings thereon shall commence on or within two business days after the first business day of the first calendar quarter beginning after the earlier of the date the Participant elected to receive payment in accordance with Section 4 or the date the Participant ceases to be a Director. Notwithstanding a Participant’s manner of payment election hereunder, if a Participant ceases to be a Director as a result of the Participant’s death, the Company shall pay to the Participant’s beneficiary or beneficiaries a lump sum on the first business day of the first calendar quarter beginning after the Participant’s death.

Only an Eligible Employee may become a Member of the Plan. Any other individual is excluded from becoming a Member until such time as he becomes an Eligible Employee. An Eligible Employee may elect to become a Member as soon as reasonably practicable as of or after the date he becomes an Employee, provided that he is then an Eligible Employee. An Eligible Employee who does not elect to become a Member when he is first eligible to do so may elect to become such a Member at any time thereafter.

Supplemental Benefit Commencement. Payment of the benefits described in Section 5 of this Agreement shall commence as soon as administratively practicable following Executive’s Date of Termination under the Employment Agreement (but in any event shall be paid in the same calendar year in which such Date of Termination occurs); provided, however, that any benefit payable under this Agreement shall comply with the following restrictions:

Required Commencement Date. A Participant’s entire interest will be distributed, or begin to be distributed, to the Participant no later than the Participant’s Required Commencement Date.