Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Tables)

v3.20.4
Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Schedule of assumptions used to estimate the fair value of stock option awards granted
The fair value of stock option awards granted was estimated using the Black-Scholes-Merton option pricing model with the following weighted-average assumptions:
Fiscal Year Ended December 31,
2020		 Fiscal Year Ended December 26,
2019		 Fiscal Year Ended December 27,
2018
Weighted average fair value per stock option $ 22.27 $ 20.38 $ 15.63
Risk-free interest rate 1.17% 2.06% 3.05%
Expected volatility 39% 45% 45%
Expected life (in years) 5.75 6.68 6.29
Dividend yield —% —% —%
Schedule of stock option activity
The table below summarizes stock option activity for the fiscal year ended December 31, 2020:
Options Weighted
Average
Exercise
Price		 Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value (in thousands)
Outstanding at December 26, 2019 6,037,079  $ 13.64 
Granted 294,563  58.15 
Exercised (2,485,427) 7.75 
Forfeited or expired (105,611) 25.71 
Outstanding at December 31, 2020 3,740,604  $ 20.72  5.9 $ 269,794 
Vested and exercisable at December 31, 2020 2,071,137  $ 13.22  4.8 $ 164,918 
Schedule of restricted stock unit activity
The following table summarizes restricted stock unit activity during the fiscal year ended December 31, 2020:
Restricted Stock Units Weighted Average Grant Date Fair Value
Unvested at December 27, 2019 —  $ — 
Granted 133,256  59.24 
Vested —  — 
Forfeited (5,036) 55.08 
Unvested at December 31, 2020 128,220  $ 59.40 
Schedule of restricted stock award activity
The following table summarizes restricted stock award activity during the fiscal year ended December 31, 2020:
Restricted Stock Awards
Service-based Performance-based TSR
Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value
Unvested at December 27, 2019 37,032  $ 35.78  —  $ —  —  $ — 
Granted 103,767  57.84  160,315  57.70  104,456  44.28 
Vested (8,955) 27.23  —  —  —  — 
Forfeited —  —  —  —  —  — 
Unvested at December 31, 2020 131,844  $ 53.72  160,315  $ 57.70  104,456  $ 44.28