The Participant agrees that if any Options hereunder are exercised within six months of vesting, the Participant shall not dispose of the shares underlying those Options within six months of the date that the Options vested and that the Company may place a restrictive legend to that effect on any certificates or book entry representing those underlying shares. The Participant further agrees that it shall not sell or otherwise transfer any Options granted hereunder (or the shares of common stock underlying such Options) within six months of such Option vesting.