At the time a participant files his or her subscription agreement, he or she shall elect to have payroll deductions made on each pay day during the Offering Period in an amount from one percent (1%) to ten percent (10%) of the Compensation which he or she receives on each pay day during the Offering Period. The Administrator, in its sole discretion, may permit all participants in a specified Offering to contribute amounts to the Plan through payment by cash, check or other means set forth in the subscription agreement prior to each Exercise Date of each Purchase Period.

An eligible Employee may become a Participant in the Plan by completing a subscription agreement authorizing payroll deductions on the form provided by the Company (which may be similar to the form attached hereto as [Exhibit A]) and filing it with the designated payroll office of the Company (or by following an electronic or other procedure prescribed by the Administrator) within the time period specified by the Administrator for all eligible Employees with respect to the Offering Period in which such participation will commence. The subscription agreement shall set forth the percentage of the Participant’s Compensation (subject to Section 6(a) below) to be paid as Contributions pursuant to the Plan.

Percentage of Participation. At the time an Employee files authorization for payroll deductions and becomes a Participant in the Plan, the Employee shall elect to have deductions made from the Employee’s pay on each payday during the time the Employee is a Participant in an Offering. Such deductions shall be an amount equal to the Employee’s Participation Amount divided by the number of payroll periods occurring during the Offering. An Employee’s “Participation Amount” shall equal the rate of 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 percent (as elected by the Employee) times such Employee’s Base Pay in effect at the Offering Commencement Date of such Offering; provided, however, that prior to any Offering Commencement Date, the Committee shall have the discretion to limit deductions to less than 10 percent (but no less than 5 percent) for any Offering.

Enrollment; Payroll Deductions. An Eligible Employee may elect to participate in this Plan by properly completing an Enrollment Form, which may be electronic, and submitting it to the Company, in accordance with the enrollment procedures established by the Committee. Participation in this Plan is entirely voluntary. By submitting an Enrollment Form, the Eligible Employee authorizes payroll deductions from his or her paycheck in an amount equal to at least one percent (1%), but not more than ten percent (10%) (or such other maximum percentage as the Committee may establish from time to time before an Offering Period begins), of his or her Compensation on each pay day occurring during an Offering Period. Payroll deductions shall commence on the first payroll date after the Grant Date and end on the last payroll date on or before the Purchase Date. The Company shall maintain records of all payroll deductions but shall have no obligation to pay interest on payroll deductions or to hold such amounts in a trust or in any segregated account. Unless expressly permitted by the Committee, a Participant may not make any separate contributions or payments to this Plan.

A Participant may discontinue his or her participation in the Plan as provided in Section 10, or, on one occasion only during an Offering Period may increase and on one occasion only during an Offering Period may decrease the rate of his or her Contributions with respect to the Offering Period, by completing and filing with the Company a new subscription agreement authorizing a change in the payroll deduction rate (or by following an electronic or other procedure prescribed by the Administrator). If a Participant has not followed such procedures to change the rate of payroll deductions, the rate of his or her payroll deductions will continue at the originally elected rate throughout the Offering Period and future Offering Periods (unless terminated as provided in Section 10). Any change in rate of Contributions pursuant to the preceding sentence shall be effective as of the beginning of the next calendar month following the date of filing of the new written or electronic instructions, provided the agreement indicating such change is filed at least ten (10) business days prior to such date and, if not, then as of the beginning of the next succeeding calendar month (unless the Administrator, in its sole discretion, elects to process a given change in payroll deduction rate more quickly).