The Option shall vest as follows: (i) twenty-five percent (25%) of the Option shall vest on the first annual anniversary of the date of grant; and (ii) as of the first day of each calendar month after the first annual anniversary of the date of grant, an additional 2.0833% of the Option shall vest; so that on the fourth annual anniversary of the date of grant, 100% of the Option will become vested. Notwithstanding the foregoing, in the event of a Change of Control (as hereinafter defined) and (x) the Participant experiences an involuntarily Termination of Service for reasons other than Cause, or (y) the Participant experiences a Termination of Service for Good Reason, in either case, on or within one (1) year after the date of the Change of Control, the unvested portion of the Option will become vested as of such Termination of Service.