NET LOSS PER COMMON SHARE

12 Months Ended

Dec. 31, 2016

NET LOSS PER COMMON SHARE.

NET LOSS PER COMMON SHARE

3. NET LOSS PER COMMON SHARE

For the twelve months ended December 31, 2016,  2015 and 2014, these securities were anti‑dilutive due to the net losses in those periods and, therefore, the number of shares used to compute basic and diluted earnings per share are the same for of those periods.

The following table presents the computations of basic and dilutive net loss per share:

	Years ended December 31,
		2016		2015	2014
Net loss	$	(94,176)	$	(27,255)	$	(17,917)
Extinguishment of preferred stock - see Note 12		—		31,806		—
Accretion and dividends of prior preferred stock - See Note 12		—		(23,327)		(3,300)
Accretion and dividends of Series D preferred stock		—		(1,245)		—
Loss attributable to common shareholders — basic and diluted	$	(94,176)	$	(20,021)	$	(21,217)
Weighted-average number of common shares used in net loss per share - basic and diluted		24,262,945		13,542,282		933,997
Loss per share - basic and diluted	$	(3.88)	$	(1.48)	$	(22.72)

The following potentially dilutive securities outstanding have been excluded from the computations of diluted weighted‑average shares outstanding because such securities have an antidilutive impact due to losses reported (in common stock equivalent shares):

	Years ended December 31,
	2016	2015	2014
Outstanding stock options	2,326,801	1,452,149	281,029
Warrants	2,445	2,445	18,809
Redeemable convertible preferred stock	—	—	6,552,820
Unvested restricted stock	82,512	75,718	15,387
Restricted stock units	41,741	—	—