Quarterly report pursuant to Section 13 or 15(d)

Stock-based compensation (Tables)

Stock-based compensation (Tables)

3 Months Ended

Mar. 31, 2014

Tecogen

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock option activity for the three months ended March 31, 2014 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, 2013	1,148,000	$1.20-$4.50	$	2.13	5.80 years	$	2,721,100
Granted	43,325	4.50	4.50		—	—
Exercised	5,000	1.20	1.20		—	—
Canceled and forfeited	—	—	—		—	—
Expired	—	—	—		—	—
Outstanding, March 31, 2014	1,186,325	$1.20-$4.50	$	2.22	5.73 years	$	2,704,600
Exercisable, March 31, 2014	919,250		$	1.90		$	2,387,075
Vested and expected to vest, March 31, 2014	1,186,325		$	2.22		$	2,704,600

Schedule of Restricted Stock Activity

Restricted stock activity for the three months ended March 31, 2014 as follows:



	Number of Restricted Stock	Weighted Average Grant Date Fair Value
Unvested, December 31, 2013	361,570	$	1.31
Granted	—	—
Vested	—	—
Forfeited	—	—
Unvested, March 31, 2014	361,570	$	1.31

Ilois

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Stock Option Activity

Stock option activity relating to Ilios for the three months ended March 31, 2014 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, 2013	575,000	$0.10-$0.50	$	0.29	6.44 years	$	120,000
Granted	—	—	—
Exercised	—	—	—
Canceled and forfeited	—	—	—
Expired	—	—	—
Outstanding, March 31, 2014	575,000	$0.10-$0.50	$	0.29	6.19 years	$	120,000
Exercisable, March 31, 2014	125,000		$	0.50		$	—
Vested and expected to vest, March 31, 2014	575,000		$	0.29		$	120,000

Schedule of Restricted Stock Activity

Restricted stock activity for the Ilios awards, for the three months ended March 31, 2014 was as follows:



	Number of Restricted Stock	Weighted Average Grant Date Fair Value
Unvested, December 31, 2013	310,000	$	0.10
Granted	—	—
Vested	—	—
Forfeited	—	—
Unvested, March 31, 2014	310,000	$	0.10

Total stock-based compensation expense for the three months ended March 31, 2014 and 2013 was $32,491 and $57,638, respectively. At March 31, 2014, the total compensation cost related to unvested restricted stock awards and stock option awards not yet recognized is $189,486. This amount will be recognized over a weighted average period of 2.23 years. No tax benefit was recognized related to the stock-based compensation recorded during the periods.