STOCKHOLDERS' EQUITY	6 Months Ended
Jun. 28, 2019
STOCKHOLDERS' EQUITY	STOCKHOLDERS' EQUITY At the end of the second quarter of 2019, there were 1.3 million shares reserved for issuance under the 2017 Stock Incentive Plan. Under such plan, the Company pays non-employee directors annual retainer fees and, at their election, meeting fees in the form of stock units. Employee and director stock units are included in common stock outstanding on the date of vesting, and stock options are included in common stock outstanding upon exercise by the participant. The fair value of employee stock units is amortized over the respective vesting period representing the requisite service period, generally three to six years. Director stock units are expensed in the period in which they are granted, as these vest immediately. The 2019 employee performance-based restricted stock units ("performance units") are issued on the third anniversary of the grant date based on the Company's adjusted EBITDA margin for each of the performance periods with a total shareholder return ("TSR") modifier relative to the TSR of the peer group companies determined by the Company's compensation committee. The fair value of each performance unit tranche is estimated using the Monte Carlo Simulation pricing model at the date of grant. During the three months ended June 28, 2019, the Company did not grant stock units to employees. During the six months ended June 28, 2019, the Company granted 228,137 stock units to employees with a weighted-average grant-date fair value of $13.5 million. During the three months ended June 28, 2019, the Company did not issue performance units to employees. During the six months ended June 28, 2019, the Company granted 58,139 performance units to employees with a weighted-average grant-date fair value of $3.6 million. During the three and six months ended June 28, 2019, the Company granted directors 13,144 and 25,274 stock units, respectively, with a weighted-average grant-date fair value of $0.7 million and $1.4 million, respectively. Antidilutive stock options and units are excluded from the calculation of weighted-average shares for diluted earnings per share. For the second quarter of 2019 and 2018, the antidilutive stock options and units were immaterial.

STOCKHOLDERS' EQUITY

6 Months Ended

Jun. 28, 2019

At the end of the second quarter of 2019, there were 1.3 million shares reserved for issuance under the 2017 Stock Incentive Plan. Under such plan, the Company pays non-employee directors annual retainer fees and, at their election, meeting fees in the form of stock units. Employee and director stock units are included in common stock outstanding on the date of vesting, and stock options are included in common stock outstanding upon exercise by the participant. The fair value of employee stock units is amortized over the respective vesting period representing the requisite service period, generally three to six years. Director stock units are expensed in the period in which they are granted, as these vest immediately. The 2019 employee performance-based restricted stock units ("performance units") are issued on the third anniversary of the grant date based on the Company's adjusted EBITDA margin for each of the performance periods with a total shareholder return ("TSR") modifier relative to the TSR of the peer group companies determined by the Company's compensation committee. The fair value of each performance unit tranche is estimated using the Monte Carlo Simulation pricing model at the date of grant.

During the three months ended June 28, 2019, the Company did not grant stock units to employees. During the six months ended June 28, 2019, the Company granted 228,137 stock units to employees with a weighted-average grant-date fair value of $13.5 million. During the three months ended June 28, 2019, the Company did not issue performance units to employees. During the six months ended June 28, 2019, the Company granted 58,139 performance units to employees with a weighted-average grant-date fair value of $3.6 million.

During the three and six months ended June 28, 2019, the Company granted directors 13,144 and 25,274 stock units, respectively, with a weighted-average grant-date fair value of $0.7 million and $1.4 million, respectively.

Antidilutive stock options and units are excluded from the calculation of weighted-average shares for diluted earnings per share. For the second quarter of 2019 and 2018, the antidilutive stock options and units were immaterial.