Net Loss per Share

12 Months Ended

Dec. 31, 2014

Net Loss per Share

Net Loss per Share

2. Net Loss per Share

        Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding, less RSAs subject to forfeiture. Diluted net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding, less RSAs subject to forfeiture, plus all additional common shares that would have been outstanding, assuming dilutive potential common shares had been issued for other dilutive securities.

        For the years ended December 31, 2014, 2013 and 2012, diluted and basic net loss per common share was identical since potential common shares were excluded from the calculation, as their effect was anti-dilutive.

Anti-dilutive Securities

        The following common equivalent shares were not included in the computation of diluted net loss per share because their effect was anti-dilutive:

	Year Ended December 31,
(In thousands)	2014		2013		2012
Share issuances under equity incentive plan and ESPP		6,239		4,095		5,367
Unvested RSAs		1,772		2,364		2,501
Shares issuable upon conversion of convertible subordinated notes		12,329		2,780		6,668
		20,340		9,239		14,536