Stock-Based Compensation

9 Months Ended

Sep. 30, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

Note 7 — Stock-Based Compensation

Total stock-based compensation expense was recognized in our Condensed Consolidated Statements of Operations as follows (in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2017		2016		2017		2016
Cost of goods sold	$	547	$	396	$	1,639	$	1,186
Research and development		5,212		3,181		14,429		9,505
General and administrative		3,076		2,589		9,050		8,102
Total stock-based compensation	$	8,835	$	6,166	$	25,118	$	18,793

During the three months ended September 30, 2017 and 2016, we granted 833,290 and 657,960 stock options, respectively, and these options had a weighted average grant-date fair value of $10.38 per share and $8.06 per share, respectively. During the three months ended September 30, 2017 and 2016, we granted 110,500 and 56,000 RSUs, respectively.

During the nine months ended September 30, 2017 and 2016, we granted 2,118,310 and 1,447,250 stock options, respectively, and these options had a weighted average grant-date fair value of $9.36 per share and $7.42 per share, respectively. During the nine months ended September 30, 2017 and 2016, we granted 110,500 and 58,000 RSUs, respectively.

As a result of stock issuances under our equity compensation plans, during the three months ended September 30, 2017 and 2016, we issued 1,092,371 and 1,193,764 shares of our common stock, respectively, and during the nine months ended September 30, 2017 and 2016, we issued 3,741,140 and 2,507,701 shares of our common stock, respectively.