(a) The RSUs shall be subject to time-based vesting conditions (which must be satisfied before the applicable portion of the Award is considered earned and payable) as follows: the Award shall vest with respect to 100% of the number of RSUs subject to the Award on the earlier of (i) the one-year anniversary of the grant date (unless such date is a day on which the U.S. stock exchanges are closed, in which case the vesting date shall be extended to the next succeeding business day), and (ii) the date of the 2019 Annual Meeting of the Stockholders of the Company (the “Vesting Period”).