Quarterly report pursuant to Section 13 or 15(d)

Stock-based compensation (Tables)

v3.7.0.1
Stock-based compensation (Tables)
3 Months Ended
Mar. 31, 2017
Tecogen  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Stock Option Activity
Stock option activity for the three months ended March 31, 2017 was as follows: 
Common Stock Options
Number of
Options
 
Exercise
Price
Per
Share
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Life
 
Aggregate
Intrinsic
Value
Outstanding, December 31, 2016
1,117,918

 
$0.79-$5.39
 
$
3.10

 
5.00 years
 
$
1,415,150

Granted
3,000

 
$3.72
 
3.72

 
 
 
 
Exercised
(61,140
)
 
$0.79-$2.00
 
1.75

 
 
 
 
Canceled and forfeited

 
 

 
 
 
 
Expired

 
 

 
 
 
 
Outstanding, March 31, 2017
1,059,778

 
 $0.79-$5.39
 
$
3.18

 
5.12 years
 
$
1,000,757

Exercisable, March 31, 2017
783,153

 
 
 
$
2.73

 
 
 
$
993,591

Vested and expected to vest, March 31, 2017
1,018,284

 
 
 
$
3.13

 
 
 
$
999,682