Net Loss Per Share

3 Months Ended

Mar. 31, 2015

Net Loss Per Share

Net Loss Per Share

11.Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data): 

	Three Months Ended
	March 31,
	2015		2014
Net loss	$	(11,623)	$	(9,921)
Weighted-average common shares outstanding		80,461		60,102
Net loss per share - basic and diluted	$	(0.14)	$	(0.17)

The following table presents the number of anti‑dilutive shares excluded from the calculation of diluted net loss per share at March 31, 2015 and 2014 (in thousands):

	March 31,
	2015	2014
Options to purchase common stock	24,853	20,736
Common stock warrants	2,492	5,967
Unvested restricted stock awards	832	38
Conversion of convertible preferred stock	—	2,857
Total shares excluded from net loss per share	28,177	29,598