Stock Option Plans (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation Allocation

Stock-based compensation costs included in the consolidated statements of operations are presented below:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2015		2014		2015		2014
Cost of products	$	21	$	5	$	76	$	5
Cost of services	98		50		301		50
Research and development	2,234		1,514		6,141		3,226
Selling, general and administrative	6,032		2,681		20,006		11,591
Total	$	8,385	$	4,250	$	26,524	$	14,872

Schedule of Stock Option Activity

Stock option activity under Intrexon's award plans was as follows:

	Number of Shares		Weighted Average Exercise Price			Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 2014	8,323,544		$	22.59		8.64
Granted	4,282,000		47.89
Adjustment due to dividend (Note 13)	312,795		25.40
Exercised	(790,265	)	(16.89		)
Forfeited	(1,467,488	)	(25.77		)
Expired	(546	)	(17.72		)
Balances at September 30, 2015	10,660,040		32.07			8.53
Exercisable at September 30, 2015	2,502,418		18.18			6.73
Vested and Expected to Vest at September 30, 2015(1)	8,803,769		30.69			8.37

(1) The number of stock options expected to vest takes into account an estimate of expected forfeitures.