Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.21.1
Stock-Based Compensation (Tables)
 3 Months Ended
Apr. 01, 2021
Share-based Payment Arrangement [Abstract]  
Stock Option Activity
The table below summarizes stock option activity for the thirteen weeks ended April 1, 2021:
Options Weighted Average Exercise Price
Outstanding at January 1, 2021 3,740,604  $ 20.72 
Granted 66,505  95.68 
Exercised (195,073) 12.22 
Forfeited or expired (15,635) 44.20 
Outstanding at April 1, 2021
 3,596,401  $ 22.47 
Vested and exercisable at April 1, 2021
 1,996,497  $ 15.03 
Estimated Fair Value of Stock Option Grants
The fair value of stock option awards granted during the thirteen weeks ended April 1, 2021 was estimated using the Black-Scholes-Merton option pricing model with the following weighted-average assumptions:
Thirteen Weeks Ended
April 1, 2021
Weighted average fair value per stock option $ 41.75
Risk-free interest rate 0.8%
Expected volatility 48.1%
Expected life (in years) 5.4
Dividend yield —%
Restricted Stock Unit Activity
The following table summarizes restricted stock unit activity during the thirteen weeks ended April 1, 2021:
Restricted Stock Units
Unvested at January 1, 2021 128,220 
Granted 100,799 
Vested (25,349)
Forfeited (2,556)
Unvested at April 1, 2021 201,114 
Restricted Stock Award Activity
The following table summarizes restricted stock award activity during the thirteen weeks ended April 1, 2021:
Restricted Stock Awards
Service-based Performance-based Total Stock Return (TSR)
Unvested at January 1, 2021 131,844  160,315  104,456 
Granted 27,465  —  — 
Vested (10,459) —  — 
Forfeited (2,508) —  — 
Unvested at April 1, 2021 146,342  160,315  104,456