XML 67 R41.htm IDEA: XBRL DOCUMENT v3.20.4
Stock Option and Incentive Plan (Tables)
 12 Months Ended
Dec. 31, 2020
Text Block [Abstract]  
Share-based Payment Arrangement, Option, Activity
A summary of the status of Boston Properties, Inc.’s stock options as of December 31, 2020, 2019 and 2018 and changes during the years then ended are presented below:
SharesWeighted-Average
Exercise Price
Outstanding at December 31, 2017540,441 $96.35 
Exercised— $— 
Outstanding at December 31, 2018540,441 $96.35 
Exercised(145,088)$96.27 
Outstanding at December 31, 2019395,353 $96.37 
Exercised(43,792)$91.60 
Outstanding at December 31, 2020351,561 $96.97 
Schedule of Stock Options Outstanding
The following table summarizes information about Boston Properties, Inc.’s stock options outstanding at December 31, 2020: 
Options OutstandingOptions Exercisable
Number Outstanding at 12/31/20Weighted-Average Remaining
Contractual Life
Exercise Price		Number Exercisable at 12/31/20Exercise Price
54,003 0.1 years$86.86 54,003 $86.86 
54,282 2.3 years$95.69 54,282 $95.69 
133,834 2.1 years$98.46 133,834 $98.46 
109,442 1.1 years$100.77 109,442 $100.77