S-1/A Table of Contrail stock withheld in payment of the exercise price or taxes relating to an award and shares equal to the number of shares surrendered in payment of any exercise price or taxes relating to an award are deemed to constitute shares not issued to the participant and are deemed to again be available for awards under our 2015 Omnibus Incentive Plan, unless the shares arc withheld or surrendered after the termination of the plan. or at the time the shares arc withheld or suntridered, it would constitute a material revision of the plan subject to stockholder approval under any then-applicable rules of the exchange on which the shares of Claw A common stock arc listed. Awards may. in the sole discretion of the Committee, be granted in assumption of, or in substitution for, outstanding awards previously granted by an entity directly or indirectly acquired by us or with which we combine (referred to as "substitute awards"), and such substitute awards will not be counted against the Absolute Share Limit, except that substitute awards intended to qualify as "incentive stock options" will count against the limit on incentive stock options described above. No award may be granted under our 2015 Omnibus Incentive Plan after the tenth anniversary of the effective date (as defined therein), but awards granted before then may extend beyond that date. Following the effective date of the plan. no further awards will be granted under the 2007 Equity Plan. Options. The Committee may grant non-qualified stock options and incentive stock options. under our 2015 Omnibus Incentive Plan. with terms and conditions determined by the Committee that arc not inconsistent with our 2015 Omnibus Incentive Plan; provided, that all stock options granted under our 2015 Omnibus Incentive Plan arc required to have a per share exercise price that is not less than 100% of the fair market value of our Class A common stock underlying such stock options on the date such stock