Vesting. Stock Options or portions thereof, are exercisable at such time or times as determined by the Committee in its discretion at or after grant. The Committee may provide that a vesting schedule shall be specified in an Award Agreement. If the Committee provides that any Stock Option becomes Vested over a period of time or upon performance events, in full or in installments, the Committee may waive or accelerate such Vesting provisions at any time. Unless otherwise determined by the Committee in connection with the grant and set forth in the Award Agreement, all unvested Stock Options shall immediately vest upon the Death or Disability of the holder.