4. Eligibility.
(a) Eligibility Requirements. Subject to Section 13 of the Plan, and with the exceptions and limitations set forth in Sections 4(b), 4(c), 4(d), and 6 of the Plan, or as may be provided elsewhere in the Plan, each Employee of a Participating Company (i) who has been continuously employed by the Participating Company for a period of at least thirty (30) days (or such greater period of time, not to exceed two (2) years, as may be specified by the Administrator for a particular Offering) as of the first day of an Offering Period, (ii) whose customary Employment with the Participating Company is for more than five (5) months per calendar year, (iii) who customarily works more than twenty (20) hours per week, and (iv) who satisfies the requirements set forth in the Plan, will be an Eligible Employee with respect to the 423 Component of the Plan. Notwithstanding the foregoing, the Administrator may exclude from eligibility in the 423 Component of the Plan any Employees of a Participating Company who are highly compensated employees within the meaning of Section 423(b)(4)(D) of the Code. In the case of the Non-423 Component of the Plan, any Employee or Eligible Service Provider of the Company or an Affiliate who is designated by the Administrator as an eligible participant will be eligible to participate in the Non-423 Component of the Plan, subject to Section 13 of the Plan, and with the exceptions and limitations set forth in Sections 4(c), 4(d), and 6 of the Plan.
(b) Five Percent Shareholders. No Employee may be granted an Option under the 423 Component of the Plan if, immediately after the Option is granted, the Employee would own (or pursuant to Section 424(d) of the Code would be deemed to own) stock possessing five percent (5%) or more of the total combined voting power or value of all classes of stock of the Company or of its Parent or Subsidiaries, if any.
(c) Additional or Different Requirements. The Administrator may, for Offering Periods that have not yet commenced, establish additional or different requirements; provided, that in the case of the 423 Component, such requirements are not inconsistent with Section 423 of the Code.
(d) Non-U.S. Employees. Eligible Employees who are citizens or residents of a non-U.S. jurisdiction (without regard to whether they also are citizens or residents of the United States or resident aliens (within the meaning of Section 7701(b)(1)(A) of the Code)) may be excluded from participation in the 423 Component of the Plan or an Offering if the participation of such Eligible Employees is prohibited under the laws of the applicable jurisdiction or if complying with the laws of the applicable jurisdiction would cause the Plan or an Offering to violate Section 423 of the Code. In the case of the Non-423 Component, Employees and Service Providers may be excluded from participation in the Plan or the Offering, if the Administrator determines that participation of such Employees or Service Providers is not advisable or practical.
5. Offering Periods. The Plan will be implemented by a series of separate Offerings, referred to as “Offering Periods,” as determined by the Administrator in its discretion. The last Business Day of each Offering Period will be an “Exercise Date”. The Administrator shall have the authority to change the Exercise Date and the duration, frequency, start and end dates of the Offering Periods to the extent permitted by Section 423 of the Code (provided, that no Option may be exercised after twenty-seven (27) months from its grant date).
6. Option Grant. Subject to the limitations set forth in Sections 4 and 10 of the Plan and the Maximum Share Limit, on the first day of an Offering Period, each Participant automatically will be granted an Option to purchase shares of Stock on the Exercise Date; provided, however, that no Participant will be granted an Option under the Plan that permits the Participant’s right to purchase shares of Stock under the Plan and under all other employee stock purchase plans of the Company and its Parent and Subsidiaries, if any, to accrue at a rate that exceeds US$25,000 in Fair Market Value (or such other maximum as may be prescribed in the Code, or in the case of the Non-423 Component, such other amount as may be determined by the Administrator) for each calendar year during which any Option granted to such Participant is outstanding at any time, as determined in accordance with Section 423(b)(8) of the Code.