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Equity Plans
 9 Months Ended
Jun. 03, 2021
Share-based Payment Arrangement [Abstract]  
Equity Plans
Equity Plans

As of June 3, 2021, 105 million shares of our common stock were available for future awards under our equity plans.

Restricted Stock and Restricted Stock Units (“Restricted Stock Awards”)

Restricted Stock Awards activity is summarized as follows:
Quarter endedNine months ended
June 3,
2021		May 28,
2020		June 3,
2021		May 28,
2020
Restricted stock award shares granted1 — 11 8 
Weighted-average grant-date fair value per share$84.73 $45.78 $53.00 $46.37 

Employee Stock Purchase Plan (“ESPP”)

ESPP activity is summarized as follows:
Nine months endedJune 3,
2021		May 28,
2020
Shares purchased22
Purchase price per share$42.55 $38.16 

Stock-based Compensation Expense

Stock based compensation expense recognized in our statements of operations is presented below. Stock-based compensation expense of $31 million and $42 million was capitalized and remained in inventory as of June 3, 2021 and September 3, 2020, respectively.
Quarter endedNine months ended
June 3,
2021		May 28,
2020		June 3,
2021		May 28,
2020
Stock-based compensation expense by caption
Cost of goods sold$45 $34 $143 $102 
Research and development29 22 82 63 
Selling, general, and administrative24 26 77 74 
$98 $82 $302 $239 
Stock-based compensation expense by type of award
Restricted stock awards$84 $70 $255 $197 
Employee stock purchase plan12 9 39 28 
Stock options2 3 8 14 
$98 $82 $302 $239 

As of June 3, 2021, $754 million of total unrecognized compensation costs for unvested awards, before the effect of any future forfeitures, was expected to be recognized through the third quarter of 2025, resulting in a weighted-average period of 1.3 years.