Subject to Section 5, the Option shall vest and become exercisable in four substantially equal installments on each of the following vesting dates: (i) January 1, 2017, (ii) September 1, 2017, (iii) September 1, 2018 and (iv) September 1, 2019, in each case, subject to the Participant’s continued employment with the Company or any of its Affiliates on each such vesting date.